A housing assembly of a capacitor and an electric drive assembly are provided. The housing assembly comprises an upper cover plate, an intermediate housing and a lower cover plate. The upper cover plate and/or the lower cover plate are provided with a first liquid inlet and a first liquid outlet. First cooling channels are formed respectively between the upper cover plate and an upper side surface of the intermediate housing and between the lower cover plate and a lower side surface of the intermediate housing, and second cooling channels are formed respectively between an outer side surface of the upper cover plate and power devices and between an outer side surface of the lower cover plate and power devices. The first cooling channel comprises a partitioning protrusion and a partitioning groove provided in the first cooling channel and extending in a length direction of the intermediate housing, and the partitioning protrusion extends into the partitioning groove and divides the first cooling channel into a first liquid inflow cooling channel and a first liquid outflow cooling channel. The housing assembly can realize the simultaneous cooling of the capacitor and the power devices, and can also prevent the occurrence of water leaking between the water passages, and the cooling and heat dissipation effect is better.
A stator structure and a flat wire motor are provided. The stator structure comprises a stator core, stator windings and an avoidance layer. The stator core has an inner cylinder cavity, and a plurality of iron core slots arranged at intervals in a circumferential direction on an end face of the stator core. The iron core slot is communicated with the inner cylinder cavity via a slot opening. The stator windings have a plurality of layers of flat wire conductor wound in the iron core slots. The avoidance layer is located between the slot opening and a first layer of flat wire conductor in a radial direction of the stator core. During the operation of the flat wire motor with this stator structure, it can reduce the eddy current loss of the first layer of flat wire conductor, and further reducing the eddy current loss of the whole motor, and thus achieving the technical effect of improving the motor efficiency.
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
3.
BIDIRECTIONAL ELECTROMAGNETIC CLUTCH AND GEAR SHIFTING DEVICE
A bidirectional electromagnetic clutch is provided that includes first and second electromagnetic clutches arranged along positive and negative directions of the same axis. The two electromagnetic clutches are integrated in the same space and configured to independently engage and/or disengage at different ends of the bidirectional electromagnetic clutch. The working states of the bidirectional electromagnetic clutch include: the first electromagnetic clutch is engaged, and the second electromagnetic clutch is engaged; the first electromagnetic clutch is engaged, and the second electromagnetic clutch is disengaged; the first electromagnetic clutch is disengaged, and the second electromagnetic clutch is engaged; the first electromagnetic clutch is disengaged, and the second electromagnetic clutch is disengaged.
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
An inductive position sensor, may include a movable part which is a magnetic conductor, and an induction coil assembly adjacent to the movable part. The induction coil assembly and the movable part form a magnetic circuit, the induction coil assembly has an input end for inputting a current and an output end for outputting a feedback current, and the inductive position sensor is used to detect a position of the movable part based on a relationship between the feedback current and the input current. The inductive position sensor has a flexible and compact structural design, and can be adjusted and arranged according to different applications and structural spaces, so it is applicable to a wide range of environments. An electromagnetic clutch is also disclosed.
A power shaft structure of an electric drive assembly is disclosed. The power shaft structure comprises a main shaft, a right end of the main shaft is located inside a motor and fixedly connected to a rotor of the motor, and a left end of the main shaft is located inside a reducer and fixedly connected to a driving gear and a parking gear of the reducer. At least one side of the driving gear is provided with an axially extending flange, and at least one side of the parking gear is provided with an axially extending flange. A bushing is provided between an inner hole of one flange at one side of the driving gear and the main shaft as well as between an inner hole of one flange at one side of the parking gear and the main shaft for radial positioning of the driving gear and the parking gear, so that the driving gear, the parking gear, and the main shaft are on the same axis, thereby improving the stability and NVH performance of the electric drive assembly.
F16D 1/068 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
A cooling and lubrication device of an electric drive assembly and an electric drive assembly are disclosed. The cooling and lubrication device includes an oil pumping unit, an oil pumping passage, and an oil returning passage. Outlets of oil distribution passages correspond to parts to be cooled and parts to be lubricated inside the motor housing, as well as parts to be cooled and parts to be lubricated. The oil pumping unit pumps the lubricating oil inside the first housing into the oil pumping passage, and transfers the lubricating oil to the parts to be cooled and the parts to be lubricated. The oil returning passage allows the lubricating oil inside the second housing to flow back into the first housing. This cooling and lubrication device can achieve active and directional cooling and lubrication of the parts to be cooled and the parts to be lubricated.
An electric drive gearbox assembly with stepped hole positioning is disclosed. Specifically, the electric drive gearbox assembly comprises a first housing, a second housing and a positioning pin. The first housing is provided with a first positioning hole on its connecting surface. The second housing is provided with a second positioning hole corresponding to the first positioning hole. The first housing and the second housing are positioned and connected through the first positioning hole, the second positioning hole and the positioning pin. The first positioning hole and/or the second positioning hole are stepped holes. The stepped hole comprises a guiding section close to an open end of the stepped hole and an engaging section far away from the open end of the stepped hole. An aperture of the guiding section is larger than an aperture of the engaging section. The guiding section is used to guide the positioning pin into the engaging section. In the electric drive gearbox assembly, the first housing can be pre-positioned when assembled with the second housing, and the first housing can be radially adjusted relative to the second housing during pre-positioning, so as to facilitate the positioning and assembly of the first housing and the second housing, and promote automated and batch assembly of the electric drive assembly.
Disclosed in the present application are an electric-motor stator cooling device and an electric motor. The cooling device comprises: an oil inlet, an oil circuit structure and an oil drainage structure, wherein the oil inlet is arranged on the outer surface of a stator; the oil circuit structure is arranged in the internal annular space of the stator; and the oil drainage structure is arranged on any annular base of the stator. During operation, cooling oil enters from the oil inlet, flows through the oil circuit structure and flows out through the oil drainage structure. The electric-motor stator cooling device in the present application enables more sufficient heat dissipation of the stator, thereby increasing the versatility of an electric-motor housing, sufficiently reducing the temperature rise of the electric motor, and maximizing the electric motor performance.
A longitudinal two-gear electric drive assembly and a new energy vehicle. The longitudinal two-gear electric drive assembly comprises a drive electric motor (1) and a speed change mechanism, wherein the speed change mechanism comprises an input shaft (2), an intermediate shaft (3) and an output shaft (4). The input shaft (2) is in transmission connection with the drive electric motor (1), the output shaft (4) and the input shaft (2) are coaxially arranged, the output shaft (4) is in transmission connection with the input shaft (2) by means of a first clutch (5), the intermediate shaft (3) and the output shaft (4) are arranged in parallel, the input shaft (2) is provided with a first gear (6), the intermediate shaft (3) is provided with a second gear (7) and a third gear (8), the third gear (8) is in transmission connection with the intermediate shaft (3) by means of a second clutch (9), the output shaft (4) is provided with a fourth gear (10), the first gear (6) is in meshing transmission with the second gear (7), the third gear (8) is in meshing transmission with the fourth gear (10), and the first clutch (5) and the second clutch (9) are both electromagnetic dog clutches. The longitudinal two-gear electric drive assembly can meet various operating requirements, and has advantages such as a compact structure, a high transmission efficiency, good NVH performance and low production costs.
F16H 3/091 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
12.
COOLING AND LUBRICATING SYSTEM FOR HYBRID POWERTRAIN
A cooling and lubricating system for a hybrid powertrain, comprising a water cooling assembly and an oil cooling assembly. The water cooling assembly comprises a water inlet, a first water channel, a second water channel, an oil cooler and a water outlet which are connected in sequence; the first water channel is provided on a driving motor housing, and the second water channel is provided on a speed reducer housing; the oil cooling assembly comprises an oil pump, a first oil conveying channel, a second oil conveying channel, a third oil conveying channel, a first oil return channel and a second oil return channel; an oil inlet of the oil pump is communicated with the bottom of the speed reducer housing, and an oil outlet is communicated with the oil cooler; lubricating oil in the oil cooler is respectively conveyed to the speed reducer housing, the driving motor housing and a range-extending motor housing by means of the first oil conveying channel, the second oil conveying channel and the third oil conveying channel; and the first oil return channel is provided at the bottom of the driving motor housing, and the second oil return channel is provided at the bottom of the range-extending motor housing. The cooling and lubricating system employs an integrated cooling and lubricating mode, so that the structure of the hybrid powertrain is more compact, and the cooling and lubricating efficiency is higher.
B60K 6/20 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
A two-gear driving assembly, comprising a driving source (1), a speed change mechanism and a speed reduction mechanism, wherein the speed change mechanism comprises an input shaft (2), an intermediate shaft (3) and an output shaft (4), which are arranged in parallel, the input shaft (2) is in transmission connection with the driving source (1), the input shaft (2) is provided with a first gear (5), the intermediate shaft (3) is provided with a second gear (6), a third gear (7) and a fourth gear (8), the output shaft (4) is provided with a fifth gear (9) and a sixth gear (10), the first gear (5) and the second gear (6) are in meshing transmission, the third gear (7) and the fifth gear (9) are in meshing transmission, the fourth gear (8) and the sixth gear (10) are in meshing transmission, the third gear (7) is in transmission connection with the intermediate shaft (3) by means of a clutch or the fifth gear (9) is in transmission connection with the output shaft (4) by means of a clutch, and the fourth gear (8) is in transmission connection with the intermediate shaft (3) by means of a clutch or the sixth gear (10) is in transmission connection with the output shaft (4) by means of a clutch; and the speed reduction mechanism is sleeved on the output shaft (4) and is in transmission connection with a differential (11). The two-gear driving assembly has the advantages of a large output torque, a compact structure, high transmission efficiency, good NVH performance, low production costs, etc. The present invention further relates to a new energy vehicle.
F16H 3/089 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
F16H 3/087 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
F16H 57/08 - General details of gearing of gearings with members having orbital motion
F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
A stator, comprising a plurality of segmented stator cores (1). In the width direction of each segmented stator core (1), a mounting groove (11) is formed in one side of the segmented stator core (1), and a locking boss (12) is provided on the other side of the segmented stator core (1); and the width dimension of the inner side of the locking boss (12) is less than the maximum width dimension of the locking boss (12). The mounting grooves (11) are in clearance fit with the locking bosses (12), and the mounting grooves (11) and the locking bosses (12) of adjacent segmented stator cores (1) are slidably connected. The two sides of each segmented stator core (1) are provided with a mounting groove (11) and a locking boss (12), respectively, and adjacent segmented stator cores (1) can be assembled into a stator by means of connection between the locking bosses (12) and the mounting grooves (11), so that the convenience of assembling segmented stator iron cores (1) into a stator is improved, and the roundness of the outer diameter of the stator can be ensured, improving the connection coaxiality between the stator and a motor housing, achieving the technical effect of improving the quality of the motor. The present utility model also relates to a motor.
Disclosed in the present utility model is a parking device, comprising a parking mechanism and a manual unlocking mechanism. The parking mechanism is connected to a shaft of a speed reducer and used for controlling the shaft of the speed reducer to be in a parking state or unlock the parking state. The parking mechanism is immersed in lubricating oil in a housing of the speed reducer. One end of the manual unlocking mechanism is located in a cab, and the other end of the manual unlocking mechanism is connected to the parking mechanism to drive the parking mechanism to control the shaft of the speed reducer to switch to unlocking of the parking state. By arranging the parking mechanism and the manual unlocking mechanism, rotation of the shaft of the speed reducer can be limited by means of the parking mechanism, so that the shaft of the speed reducer stops rotating or the shaft of the speed reducer resumes rotating, thereby achieving parking and unlocking of a commercial vehicle. In addition, when the parking mechanism cannot operate after entering the parking state, unlocking of the parking mechanism is driven by controlling the manual unlocking mechanism in the cab, to ensure timely unlocking, so that the technical effects of improving the safety and convenience of the parking device are achieved.
A transmission casing, comprising a casing body (1) and a labyrinth structure (2), wherein a vent (11) is provided on a top end of the casing body (1), and the labyrinth structure (2) is arranged on the casing body (1); and one end of the labyrinth structure (2) is in communication with the vent (11), and the other end thereof is in communication with the interior of the casing body (1). By means of directly machining the casing body (1) to form the labyrinth structure (2) and configuring one end of the labyrinth structure (2) to be in communication with the vent and the other end thereof to be in communication with the casing body (1), lubricating oil in the casing body (1) can reach the vent (11) by only needing to pass through the labyrinth structure (2).
A reducer housing and an electric drive assembly are disclosed. A liquid cooled heat dissipation structure is provided at a bottom of the reducer housing and/or on a side wall thereof through which lubricating oil flows. The heat dissipation structure includes a coolant tank and a cover plate that seals the coolant tank. Two ends of the coolant tank are respectively provided with a liquid inlet and a liquid outlet. Convex structures and concave structures are alternately provided on the bottom of coolant tank so that inner and outer sides of the bottom of the coolant tank are in a wavy shape to increase a contact area between the coolant tank and the lubricating oil inside the reducer housing.
A vehicle electric drive assembly and a new energy vehicle are disclosed. The electric drive assembly comprises a motor and a reducer. The motor comprises a motor shaft, and the reducer comprises an input shaft, an intermediate shaft, and an output shaft. The input shaft is fixedly connected to the motor shaft, the output shaft and the input shaft are coaxially provided, the intermediate shaft is provided parallel to the input shaft and the output shaft, and the input shaft drives the output shaft to rotate through the intermediate shaft. The electric drive assembly has the advantages of compact structure, simple manufacturing, low cost, high performance, and small space occupation.
Disclosed in the present utility model are an oil-spill-prevention structure of a rotating shaft, and a speed reducer. The oil-spill-prevention structure comprises oil seals and blocking plates; a rotating shaft and a housing are arranged in a clearance manner, the blocking plates and the oil seals are respectively located in the clearance and sleeved on the rotating shaft, and the oil seals are located at the end close to the outside of the housing; and the oil seals are respectively in contact with the rotating shaft and the housing. The blocking plates and the oil seals are provided, oil blocking grooves are formed in the rotating shaft, oil settling grooves are formed in the housing, oil return grooves are formed in the housing, and the oil blocking grooves, first oil passing grooves in the blocking plates, the oil settling grooves and oil return channels are sequentially communicated. In this way, oil in the clearance between the outer circumferential surface of the rotating shaft and the housing can be intercepted by the oil blocking grooves, such that the oil is prevented from flowing to the outside of the housing. The intercepted oil can drip into the first oil passing grooves and further enter the oil settling grooves, and flow back into the housing through the oil return channels. When the rotating shaft rotates at a high rotating speed, the oil can be collected into the housing without spilling, thereby achieving the technical effect of improving the sealing performance and safety of the speed reducer.
An iron core and a rotor. The iron core comprises an iron core punching sheet (1) and magnetic steels; magnetic steel mounting grooves (11) and magnetic steel fixing holes (12) are formed on the iron core punching sheet (1); the magnetic steel fixing holes (12) are located on the side surfaces of the magnetic steel mounting grooves (11); the magnetic steels are located in the magnetic steel mounting grooves (11); and the magnetic steel fixing holes (12) are configured to press and fix the magnetic steels towards the magnetic steel mounting grooves (11). By forming the magnetic steel fixing holes (12) on the side surfaces of the magnetic steel mounting grooves (11), the iron core punching sheet (1) between the magnetic steel mounting grooves (11) and the magnetic steel fixing holes (12) can be pressed towards the magnetic steel mounting grooves (11), thereby fixing the magnetic steels. In this process, an injection molding device, an injection mold, and a nylon injection molding material do not need to be additionally purchased and used, thereby achieving the technical effect of reducing the production cost of motors and thus achieving the technical effects of reducing the production cost of new energy automobiles and improving the competitiveness of new energy automobiles.
A transmission shifting and parking structure includes a rotary drive mechanism, a shifting rocker arm, a shift fork, a shifting actuator, a driving guide shaft, a parking rocker arm, a parking push rod assembly, and a parking actuator; the rotary drive mechanism drives the driving guide shaft to rotate; one end of the shifting rocker arm and one end of the parking rocker arm are fixed on the driving guide shaft and rotate with the driving guide shaft; the other end of the shifting rocker arm is provided with a cylindrical pin, as the shifting rocker arm rotates, the cylindrical pin moves along a shift fork typed groove provided on the shift fork and drives the shift fork to move; the shift fork typed groove is provided with multiple positions corresponding to gear positions; the other end of the parking rocker arm is hinged with the parking push rod assembly.
F16H 63/04 - Final output mechanisms thereforActuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
F16H 63/30 - Constructional features of the final output mechanisms
Disclosed in the preset application are a motor shaft current suppression mechanism and an electric drive system, the motor shaft current suppression mechanism being applied to the electric drive system. The electric drive system comprises a motor controller and a motor. The suppression mechanism comprises: a first capacitor, used for connecting each phase line of the three-phase output of the motor controller to a housing of the motor controller itself; and/or, a second capacitor, used for connecting each phase line of the three-phase output of the motor to a housing of the motor itself. The present application suppresses the shaft current on a bearing so as to protect the bearing of the motor. The motor shaft current suppression mechanism of the present application can be used for the electric drive system.
A BMS slave board, a BMS master board, a battery pack and a method for controlling a temperature and humidity therein are disclosed. The BMS slave board comprises: a first temperature and humidity sensing unit for collecting and storing a temperature and humidity of a predetermined area within a battery pack housing; and a battery sampling chip communicatively coupled with the first temperature and humidity sensing unit and used to acquire the temperature and humidity by accessing the first temperature and humidity sensing unit, wherein the first temperature and humidity sensing unit and the battery sampling chip are installed on a same circuit board, and a power input end of the first temperature and humidity sensing unit is connected to a power output end of a battery module. In the embodiment of the present disclosure, the power input end of the first temperature and humidity sensing unit is connected to the power output end of the battery module, so that the temperature and humidity can be continuously monitored without being affected by the factor of entire vehicle stopping and powering down, thereby solving the problem in the prior art that the humidity inside the battery pack cannot be monitored after the entire vehicle is powered down.
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
A pneumatic gear shifting mechanism of a gearbox, comprising: a transmission rear cover housing, a gear shifting execution mechanism (1), a pressure regulating valve (2) and a shift fork (3), wherein the gear shifting execution mechanism and the pressure regulating valve are both mounted on the transmission rear cover housing, and the shift fork is mounted on the gear shifting execution mechanism. During working, gear adjustment is performed among a neutral gear, a high gear or a low gear by means of the gear shifting execution mechanism, and in the gear adjustment process, at least two paths of working air pressure can be generated after compressed air passes through the pressure regulating valve. The gear shifting mechanism improves the stability of the pneumatic gear shifting mechanism by inputting stable high/low-pressure airflow to the gear shifting execution mechanism by means of the pressure regulating valve; the provision of a self-locking mechanism helps to prevent gear slipping; moreover, the pneumatic gear shifting mechanism of the gearbox has a more compact structure and high integration, the arrangement space is simplified, lightweight use requirements are met, and thus the costs are reduced.
F15B 15/17 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
Provided in the present invention is a liquid-cooled electric motor, comprising a front end cover; a housing, wherein a front end of the housing is configured to connect to the front end cover, a front bearing chamber is disposed in the middle of the front end of the housing, several radially extending ribs are disposed on a side face of the front bearing chamber, the ribs and the housing are integrally formed, and after the front end of the housing and the front end cover are closed, spaces between the ribs form several first cooling liquid channels, a side wall of the housing is internally provided with an interlayer, second cooling liquid channels are disposed in the interlayer, and the first cooling liquid channels are in communication with the second cooling liquid channels; and a rear end cover, which is configured to connect to a rear end of the housing. The present invention integrates the housing of the electric motor and the front bearing chamber, thereby reducing the number of assembly procedures of the electric motor; while achieving cooling of a bearing, joint surfaces of existing split-type cooling liquid channels are removed, thereby improving the sealing performance of the cooling liquid channels, and reducing the potential risk of short circuit failure caused by liquid leakage in the cooling liquid channels of the liquid-cooled electric motor.
A cooling and lubricating apparatus for an electric drive assembly, and an electric drive assembly, wherein the cooling and lubricating apparatus comprises: an oil pumping assembly (6), an oil pumping path, and an oil return path; the oil pumping path comprises, successively communicated, an oil inlet pipe (7), an in-shaft oil channel (8), and a first oil outlet channel (9); the in-shaft oil channel (8) extends axially within a motor shaft (3), and by means of the oil inlet pipe (7), the oil pumping assembly (6) pumps lubricating oil located in a speed reducer housing (5) into the in-shaft oil channel (8); the first oil outlet channel (9) is arranged on a peripheral wall of the motor shaft (3) and is used for flinging lubricating oil located in the in-shaft oil channel (8) onto a component to be cooled and lubricated located within a motor housing (4); the in-shaft oil channel (8) has disposed therein an axial flow impeller (13), capable of pumping lubricating oil located at an oil inlet end of the in-shaft oil channel (8) to an oil outlet end of the in-shaft oil channel (8); and the oil return path is arranged at the bottom of the motor housing (4) and is used for causing lubricating oil located in the motor housing (4) to flow back into the speed reducer housing (5).
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Alternators for land vehicles; driving belts for motors, other than for land vehicles; electric mechanisms for operating vehicle windows; electric motors for machines; electric starter motors; engines and motors for the generation of electricity; fuel and air mixture regulators being parts of internal combustion engines; mechanical lifts for moving, parking and storing land vehicles; motors and engines used in industrial applications; power tool motors; starter alternators
(2) Artificial intelligence software for autonomous vehicles; computer operating programs; computer operating system programs for wearable electronic devices; computer software and applications for electric vehicle navigation; computer software application for electric vehicle chargers; computer software used to manage and avoid the risk of operator distraction and fatigue by sending real time alerts to operator in the vehicle; computer systems for vehicle safety and security for autonomous vehicles; downloadable software for tracking and managing vehicle maintenance; interactive computer application software for use in cell phones that enables users to connect remotely with their vehicles to access vehicle information and control functions; mobile applications, namely, downloadable mobile application for facilitating charging of electric vehicles, locating electric vehicle charging stations, remote observation, management and operation of electric vehicle charging stations, and authentication and payment of electric vehicle charging stations
(3) Brakes for land vehicles; clutch mechanisms for land vehicles; clutches for motor vehicles; electric motors for land vehicle; engines for land vehicles; friction clutches for land vehicles; gear boxes for land vehicles; hydraulic clutches for land vehicles; jaw clutches for land vehicles; power clutches for land vehicles
The present invention discloses a permanent magnet motor and an electric drive system. The permanent magnet motor comprises a stator and a rotor; the stator comprises a stator iron core section; an inner rounded surface of the stator iron core section has disposed thereon a plurality of axial stator teeth; a stator groove is formed between each two adjacent stator teeth; and an auxiliary groove is formed in the top end of at least part of the stator teeth. The permanent magnet motor has advantages such as low motor vibration noise, high NVH quality, etc.
Disclosed in the present application is a parking device of an automobile. The parking device comprises a parking gear, a limiting member, a parking pawl, a push rod assembly, a swing driving member and a reset member. The limiting member is arranged spaced apart from a circumferential side face of the parking gear. The parking pawl is rotationally arranged in an automobile, and an engaging end of the parking pawl is located between the limiting member and the parking gear and can be rotated to a parking position where same can engage with the parking gear. A push rod is provided with a pushing portion, which can abut between the parking pawl and the limiting member. A push block is slidably provided on the push rod. An elastic member is connected between the pushing portion and the push block. The swing driving member can swing in a reciprocating manner, and a swing end of the swing driving member can be hinged to the push block, so that the push block can push or pull, by means of the elastic member, the pushing portion to move; and by means of pushing the pushing portion, the parking pawl can be driven to cause the engaging end to rotate to the parking position. The reset member can provide a reset force to the parking pawl, so that the engaging end can be separated from the parking position after the pushing portion is pulled.
A dual-motor drive assembly and a vehicle are disclosed. The dual-motor drive assembly comprises a first motor and a second motor arranged coaxially, a first gear transmission, a second gear transmission, and one or more idle gear pairs. The first gear transmission is driven by the first motor, and the second gear transmission is driven by the second motor. The idle gear pairs are respectively arranged in the first gear transmission and the second gear transmission and are configured to increase a distance between an output shaft of the first motor and an end shaft of the first gear transmission.
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 25/06 - Auxiliary drives from the transmission power take-off
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 57/025 - Support of gearboxes, e.g. torque arms, or attachment to other devices
F16H 57/037 - Gearboxes for accommodating differential gearing
Provided in the present invention are a BMS slave board, a BMS mainboard, and a battery pack and a temperature and humidity control method therefor. The BMS slave board comprises: a first temperature and humidity sensing unit, which is used for collecting and storing temperature and humidity of a predetermined area inside a battery pack box body; and a battery sampling chip, which is communicatively coupled to the first temperature and humidity sensing unit, and is used for acquiring the temperature and humidity by means of accessing the first temperature and humidity sensing unit, wherein the first temperature and humidity sensing unit and the battery sampling chip are arranged on the same circuit board, and a power supply end of the first temperature and humidity sensing unit is connected to a power source output end of a battery module. By means of the embodiments of the present invention, a power supply end of a first temperature and humidity sensing unit is connected to a power source output end of a battery module, such that temperature and humidity monitoring can be continuously performed without being influenced by the factor of a vehicle being powered off due to parking, thereby solving the defect, in the prior art, of it being impossible to monitor the humidity inside a battery pack after the vehicle is powered off.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Metalworking machines; starters for motors and engines; alternators; motors, other than for land vehicles; motors, electric, other than for land vehicles; driving motors other than for land vehicles; driving chains other than for land vehicles; marine engines; control mechanisms for machines, engines or motors; all the aforementioned goods not related to the operation of online shops, handling of commercial orders, receiving, sorting, temporary storage, dispatching and delivery of parcels, letters, mail and goods. Interactive touch screen terminals; computer software platforms, recorded or downloadable; computer programs, downloadable; computer software applications, downloadable; satellite navigational apparatus; electro-dynamic apparatus for the remote control of signals; vehicle radios; electric control panels; electric locks for vehicles; batteries, electric, for vehicles; all the aforementioned goods not related to the operation of online shops, handling of commercial orders, receiving, sorting, temporary storage, dispatching and delivery of parcels, letters, mail and goods. Clutches for land vehicles; clutch mechanisms for motor cars; driving motors for land vehicles; transmissions, for land vehicles; reduction gears for land vehicles; propulsion mechanisms for land vehicles; motors, electric, for land vehicles; motors for land vehicles; gear boxes for land vehicles; brakes for vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Alternators; Driving chains other than for land vehicles; Driving motors, other than for land vehicles; Electric motors, not for land vehicles; Hydraulic controls for machines, motors and engines; Marine engines and parts and fittings thereof; Metalworking machines; Motors, other than for land vehicles; Pneumatic controls for machines, motors and engines; Starters for motors and engines Brakes for vehicles; Clutch mechanisms for land vehicles; Clutches for land vehicles; Driving motors for land vehicles; Gear boxes for land vehicles; Motors for land vehicles; Motors, electric, for land vehicles; Reduction gears for land vehicles; Rocket engines for land vehicle propulsion; Transmissions, for land vehicles
34.
Electric drive power transmission system box assembly having stepped pin positioning and mounting method of electric drive power transmission system box assembly
An electric drive power transmission system box assembly is provided having stepped pin positioning and a mounting method of the electric drive power transmission system box assembly. The box assembly includes a housing shaft string assembly, stepped pins, a first housing, and a first bearing. The housing shaft string assembly includes a housing and a shaft string supported on the housing. Each stepped pin includes a matching section and a guide section, the diameter of the matching section is greater than the diameter of the guide section, a tail end portion of the matching section is fixed in a fixing pin hole of the housing, the first housing is mounted and fixed to the housing shaft string assembly under the guide of the guide section, and a rear end of the shaft string is supported on the first housing by means of the first bearing.
A monostable electromagnetic clutch is disclosed, which comprises a movable member, a magnetic assembly, a fixed disc, and a plurality of iron cores, wherein the magnetic assembly is connected to the fixed disc, the iron cores cross through the magnetic assembly and are connected to the fixed disc, the movable member is provided thereon with an spring member, and under an action of an electromagnetic force of the magnetic assembly and an spring force of the spring member, the movable member can reciprocate at a side of the magnetic assembly to keep the movable member and the iron cores in an engaged state or a disengaged state. The structural design of the present disclosure is flexible and compact, and can be combined in a different way according to different applications and different structural spaces. The electromagnetic clutch basic units can be used separately, or a plurality of electromagnetic clutch basic units can be combined freely, and after combination, they can be freely arranged in a variety of installation positions and spaces as required, and the use of space can be fully optimized.
A rotor structure for reducing a working temperature in a shaft is disclosed. The rotor structure comprises a hollow shaft body and an inner shaft sleeve, the inner shaft sleeve is assembled in the hollow shaft body, and a first thermal insulating cavity is formed between the inner shaft sleeve and the hollow shaft body. The rotor structure according to the present disclosure can be applied to the motor, and can effectively reduce the working temperature of the inner surface of the hollow shaft of the motor and ensure the reliable operation of the motor.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
37.
HOUSING STRUCTURE OF ELECTRIC DRIVE ASSEMBLY, AND ELECTRIC DRIVE ASSEMBLY
A housing structure of an electric drive assembly, and an electric drive assembly. The housing structure comprises an electric motor housing (1), a speed reducer housing (2), a controller housing (3), an oil cooling assembly and a water cooling assembly, wherein at least two of the electric motor housing, the speed reducer housing and the controller housing have an integrated structure; the oil cooling assembly comprises an oil pumping unit and an oil channel, the oil channel being arranged inside the electric motor housing and the speed reducer housing, and the oil pumping unit being in communication with the oil channel and delivering lubricating oil in the speed reducer housing to the oil channel; and the water cooling assembly comprises a water channel, which is a water circulation path, is arranged inside the controller housing and the electric motor housing, and is connected to a water cooling source of a vehicle. With the housing structure, the weight of the electric drive assembly can be reduced, and the rigidity of the electric drive assembly can be improved. The housing structure has the advantage of a high cooling and lubrication efficiency.
An electromagnetic clutch is provide that includes a fixed component, a driven component and an elastic component. The fixed component includes a magnetic yoke provided thereon with multiple iron cores, and each iron core is provided thereon with a coil. The driven component includes an armature disc provided thereon with multiple magnets. The armature disc and the magnetic yoke are disposed correspondingly, and the iron cores and the magnets are disposed correspondingly. The elastic component is used to keep the armature disc at a disengaged position from magnetic yoke. When the coil is energized in a forward direction, the iron core attracts the magnet and when the coil is energized in a reverse direction, the iron core generates an electromagnetic force to reduce an attractive force of the magnet.
F16D 27/09 - Magnetically-actuated clutchesControl or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings and with interengaging jaws or gear-teeth
F16D 27/01 - Magnetically-actuated clutchesControl or electric circuits therefor with permanent magnets
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
39.
Control method of electromagnetic clutch in hybrid power system and hybrid power system
A hybrid power system comprises an engine, a motor, an electromagnetic clutch, an electromagnetic clutch controller and a power supply system. The power supply system comprises: a low-voltage battery, a standby power supply system and a switching circuit. The electromagnetic clutch is used to control connection of the motor. A control method comprises: monitoring whether a voltage of the low-voltage battery is lower than a target value, and judging whether the low-voltage battery fails; using the switching circuit to switch to the standby power supply system to supply power to the electromagnetic clutch and the electromagnetic clutch controller; using the electromagnetic clutch controller to judge an engaged or disengaged state of the electromagnetic clutch; and further controlling the electromagnetic clutch according to the engaged or disengaged state. When the low-voltage battery power supply fails, the switching circuit switches to the standby power supply system to supply power.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
B60K 6/387 - Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60W 20/50 - Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
The present application relates to a motor. The motor comprises a motor shaft, a motor end cap, a conductive part, an elastic body, and a fastener, an end of the motor shaft being provided with a tip hole; the motor end cap is provided with a channel, and the channel faces the tip hole; the conductive part is mounted in the channel, and the conductive part abuts against an inner ring of the tip hole; the elastic body is installed in the channel, and the elastic body abuts against the conductive part; the fastener and the elastic body abut against each other, and the fastener is connected to the channel and is used for guiding the shaft current generated by induction of the motor shaft to the motor end cap through the conductive part, the elastic body, and the fastener in sequence. The shaft current is guided out through the conductive part and the inner ring of the tip hole, and the motor shaft can make contact with a certain area during the rotating process, effectively eliminating the shaft current. The present application further relates to an electric drive system having the motor.
A monostable electromagnetic clutch is provided having a movable assembly and an electromagnetic assembly. The movable assembly is provided thereon with a return springs and can pass through the electromagnetic assembly. The electromagnetic assembly generates electromagnetic force when it is energized, and under a driving action of the electromagnetic force and an spring force of the return springs, the movable assembly can reciprocate in the electromagnetic assembly.
F16D 27/09 - Magnetically-actuated clutchesControl or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings and with interengaging jaws or gear-teeth
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
Disclosed in the present invention is a transverse driving assembly. The transverse driving assembly comprises a power source, a speed-changing mechanism and a speed-reducing mechanism. The speed-changing mechanism comprises a first shaft and a second shaft arranged in parallel, the first shaft is in transmission connection with the power source, a first gear and a third gear are provided on the first shaft, a second gear and a fourth gear are provided on the second shaft, the first gear is in meshing transmission with the second gear, and the third gear is in meshing transmission with the fourth gear. The first gear is rotatably connected to the first shaft or the second gear is rotatably connected to the second shaft by means of a clutch, and the third gear is in transmission connection with the first shaft or the fourth gear is in transmission connection with the second shaft by means of the clutch. The speed-reducing mechanism is sleeved on the second shaft, and is in transmission connection with a differential. The transverse driving assembly has advantages such as a small envelope, and being lightweight, low cost and highly efficient.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
43.
HOUSING ASSEMBLY OF CAPACITOR AND ELECTRIC DRIVE ASSEMBLY
Disclosed in the present invention are a housing assembly of a capacitor and an electric drive assembly. The housing assembly comprises an upper cover plate, a middle housing, and a lower cover plate; the upper cover plate and/or the lower cover plate is provided with a first liquid inlet and a first liquid outlet; a first cooling channel is formed between the upper cover plate and the upper side surface of the middle housing and between the lower cover plate and the lower side surface of the middle housing, respectively; second cooling channels are formed between the outer side surface of the upper cover plate and the outer side surface of the lower cover plate and power devices; each first cooling channel comprises a separation protrusion and a separation recess disposed in the first cooling channel and extending in the length direction of the middle housing, and the separation protrusion extends into the separation recess and divides the first cooling channel into a first liquid inflow cooling channel and a first liquid outflow cooling channel. The housing assembly can realize simultaneous cooling of the capacitor and the power devices, and can also prevent crossflow between the channels, and the cooling and heat dissipation effects are better.
The present disclosure discloses a rotor of an induction motor comprising a rotor body (1), alternating rotor teeth (2) and rotor slots (3) arranged along a circumference of the rotor body (1), and a plurality of grooves (4) provided at an end of the rotor teeth (2) or a plurality of voids (5) provided within the end of the rotor teeth (2) that are provided symmetrically about a center line (10) of the rotor teeth (2). The rotor and the induction motor having the rotor of the present disclosure can, for example, reduce the radial force of the stator caused by the slotting effect by about 50%. Therefore, the user's comfort can be greatly improved, while the efficiency of the induction motor can be improved, and the life of the induction motor can be prolonged.
The present disclosure discloses a rotor of an induction motor comprising a rotor body (1), alternating rotor teeth (2) and rotor slots (3) arranged along a circumference of the rotor body (1), and a plurality of grooves (4) provided at an end of the rotor teeth (2) or a plurality of voids (5) provided within the end of the rotor teeth (2) that are provided symmetrically about a center line (10) of the rotor teeth (2). The rotor and the induction motor having the rotor of the present disclosure can, for example, reduce the radial force of the stator caused by the slotting effect by about 50%. Therefore, the user's comfort can be greatly improved, while the efficiency of the induction motor can be improved, and the life of the induction motor can be prolonged.
Alternators; Driving chains other than for land vehicles; Driving motors, other than for land vehicles; Electric motors, not for land vehicles; Hydraulic controls for machines, motors and engines; Marine engines and parts and fittings thereof; Metalworking machines; Motors, other than for land vehicles; Pneumatic controls for machines, motors and engines; Starters for motors and engines
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Brakes for vehicles; Clutch mechanisms for land vehicles; Clutches for land vehicles; Driving motors for land vehicles; Gear boxes for land vehicles; Motors for land vehicles; Motors, electric, for land vehicles; Reduction gears for land vehicles; Rocket engines for land vehicle propulsion; Transmissions, for land vehicles
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Metalworking machines; starters for motors and engines; alternators; motors, other than for land vehicles; motors, electric, other than for land vehicles; driving motors other than for land vehicles; driving chains other than for land vehicles; marine engines; control mechanisms for machines, engines or motors. Interactive touch screen terminals; computer software platforms, recorded or downloadable; computer programs, downloadable; computer software applications, downloadable; satellite navigational apparatus; electro-dynamic apparatus for the remote control of signals; vehicle radios; electric control panels; electric locks for vehicles; batteries, electric, for vehicles. Clutches for land vehicles; clutch mechanisms for motor cars; driving motors for land vehicles; transmissions, for land vehicles; reduction gears for land vehicles; propulsion mechanisms for land vehicles; motors, electric, for land vehicles; motors for land vehicles; gear boxes for land vehicles; brakes for vehicles.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Alternators for land vehicles; Starter alternators; Motors and engines used in industrial applications; Engines and motors for the generation of electricity; Power tool motors; Electric motors for machines; Electric starter motors; Driving belts for motors, other than for land vehicles; Electric mechanisms for operating vehicle windows; Fuel and air mixture regulators being parts of internal combustion engines; Mechanical lifts for moving, parking and storing land vehicles.
(2) Computer software and applications for electric vehicle navigation; Computer systems for vehicle safety and security for autonomous vehicles; Computer software application for electric vehicle chargers; Downloadable software for tracking and managing vehicle maintenance; Artificial intelligence software for autonomous vehicles; Computer software used to manage and avoid the risk of operator distraction and fatigue by sending real time alerts to operator in the vehicle; Interactive computer application software for use in cell phones that enables users to connect remotely with their vehicles to access vehicle information and control functions; Mobile applications, namely, downloadable mobile application for facilitating charging of electric vehicles, locating electric vehicle charging stations, remote observation, management and operation of electric vehicle charging stations, and authentication and payment of electric vehicle charging stations; Computer operating programs; Computer operating system programs for wearable electronic devices.
(3) Clutches for motor vehicles; Power clutches for land vehicles; Hydraulic clutches for land vehicles; Friction clutches for land vehicles; Jaw clutches for land vehicles; Clutch mechanisms for land vehicles; Engines for land vehicles; Electric motors for land vehicle; Gear boxes for land vehicles; Brakes for land vehicles.
50.
LIQUID COOLING HEAT DISSIPATION STRUCTURE AND GEARBOX HOUSING
A liquid cooling heat dissipation structure and a gearbox casing that includes heat dissipation structure are disclosed. The heat dissipation structure includes a coolant tank and a cover plate that is used to seal the coolant tank. Two ends of the coolant tank are respectively provided with a liquid inlet and a liquid outlet. The coolant tank is provided therein with a plurality of fixed guide ribs that are arranged alternately and at intervals to form a continuous S-shaped or maze shaped channel for the coolant to flow through. The suspended guide ribs are further provided between the fixed guide ribs or between a fixed guide rib and an inner wall of the coolant tank.
A gearbox casing is provided in which a bottom part or a side part of the gearbox casing has a number of first coolant tanks. The gearbox casing above a bottom part of the first coolant tanks is provided therein with a lubricating liquid, and the first coolant tanks are used to cool the lubricating liquid. A first coolant tank is provided therein with a number of parallel partition walls, by which the first coolant tank is separated into at least two communicated sub-tanks that are provided with first fixed guide ribs and first suspended guide ribs to divide the coolant.
An electrically driven gearbox assembly having stepped hole positioning, specifically comprising a first housing (1), a second housing (2), and a positioning pin (3); a first positioning hole (4) is provided on a connecting surface of the first housing, a second positioning hole (5) corresponding to the first positioning hole is provided on the second housing, and the first housing and the second housing are positioned and connected by means of the first positioning hole, the second positioning hole, and the positioning pin. The first positioning hole and/or the second positioning hole is a stepped hole, the stepped hole comprises a guide section (4-1) that is near a hole opening and a mating section (4-2) that is away from the hole opening, the aperture of the guide section is larger than the aperture of the mating section, and the guide section is used for guiding the positioning pin to enter into the mating section. In the electrically driven gearbox assembly, the first housing can be pre-positioned when being assembled with the second housing. In addition, the first housing can be radially adjusted relative to the second housing during pre-positioning, which facilitates the positioning and assembly of the first housing and the second housing and facilitates automated and batch assembly of the electrically driven assembly.
A power shaft structure of an electric drive assembly, the power shaft structure comprising a main shaft (1), wherein the right end of the main shaft is located inside an electric motor (2) and is fixedly connected to a rotor (3) of the electric motor, and the left end of the main shaft is located inside a speed reducer (4) and is fixedly connected to a driving gear (5) and a parking gear (6) of the speed reducer; at least one side of the driving gear is provided with an axially extending flange, and at least one side of the parking gear is provided with an axially extending flange; bushings (8) are provided between an inner hole in the flange on one side of the driving gear and the main shaft and between an inner hole in the flange on one side of the parking gear and the main shaft; and the bushings are used for radial positioning of the driving gear and the parking gear, so that the positions of the driving gear, the parking gear and the main shaft are on the same axis, thereby improving the stability and NVH performance of the electric drive assembly.
F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
Disclosed in the present invention is a three-in-one electric drive integrated system for a new-energy vehicle. An oil cooling loop and a water cooling loop are provided among an electric motor, a retarder and a controller. Oil in the retarder is thrown from a low level to a high level under the action of rotation of a gear in the retarder, some of the oil is guided to an electric motor shaft of the electric motor to serve as cooling oil, the electric motor shaft is provided with an oil injection hole, and the cooling oil is sprayed onto a stator winding region and a bearing region under the action of a centrifugal force of rotation of the electric motor shaft so as to achieve the oil cooling for a stator winding of the electric motor and the lubrication for a bearing, while the cooling oil inside the electric motor flows back to the retarder to form an oil cooling circulation. In addition, the circulation water cooling loop is provided among the electric motor, the retarder and the controller, and a heat exchange is created between the water cooling loop and the oil cooling loop at the electric motor and an oil pan of the retarder to cool a housing and the cooling oil by means of cooling water, so as to achieve an oil-water composite cooling effect on the three-in-one electric drive integrated system, thereby increasing the torque capacity and power capacity of the electric motor.
A differential lock and parking structure is provided for a dual power source driving speed reducer, that includes first and second shafts, a differential lock mechanism, and a parking mechanism. The first and second shafts are connected to dual power sources, respectively; the differential lock mechanism and the parking mechanism are provided at the tail ends of the first and second shafts; and the differential lock mechanism includes a movable chainring assembly, a fixed chainring assembly, and a fixed armature assembly. The parking mechanism includes a parking gear integrated with a fixed chainring, a pawl assembly, and a parking cam assembly that drives the pawl assembly to realize the conversion between parking-in and parking-out.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 63/40 - Control outputs to change-speed- or reversing-gearings for conveying rotary motion comprising signals other than signals for actuating the final output mechanisms
An inverter junction box is provided that includes a cover plate and a knockout pin. The cover plate is detachably connected with a top part of a casing; the knockout pin has one end that is detachably connected with a bottom part of the cover plate, and another end that can abut against a protection device on an inverter. One side of the casing has a connecting part that is connected with an external cable. A bottom part of the casing is a hollow structure and abuts against an incoming terminal of the inverter.
A differential system includes a differential and a differential disconnect mechanism. The differential includes an outer differential housing and an inner differential housing. The differential disconnect mechanism includes a disconnect clutch, first end face teeth and second end face teeth. The first end face teeth are disposed between the outer differential housing and the inner differential housing and are movably connected with the outer differential housing so that the first end face teeth can move axially and rotate synchronously relative to the outer differential housing. The second end face teeth are fixedly connected with the inner differential housing. The disconnect clutch is connected with the first end face teeth, and is configured to drive the first end face teeth to move axially relative to the second end face teeth.
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
A bistable electromagnetic clutch is provided that includes a first part, a second part and an spring part. The first part includes a yoke with a plurality of iron cores, and an electromagnetic coil on each of the iron cores. The second part includes a moving carrier disc and a magnetic conductive disc that is fixed on a side of the moving carrier disc that is away from the yoke. Several magnets are fixed on the moving carrier disc, and the iron cores and the magnets are provided in a correspondence relation. The spring part is configured to keep the moving carrier disc and the yoke in normally separated positions. Two adjacent electromagnetic coils form a group, two electromagnetic coils in a same group are wound to form a group of windings with identical magnetic polarities, and corresponding two magnets form a group of magnetomotive forces with identical magnetic polarities.
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
F16D 27/00 - Magnetically-actuated clutchesControl or electric circuits therefor
F16D 27/108 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
F16D 27/112 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
59.
Inverter housing and connecting structure for inverter and junction box
An inverter casing and a connection structure of an inverter and a junction box are provided. The inverter casing includes an upper casing with an inner side that is provided with a cavity for accommodating a circuit board, and an upper surface that is provided with a junction recess for accommodating a junction box that is fixedly installed in the junction recess. Moreover, a bottom part of the junction recess is provided with an elastic protrusion for connecting a high-voltage protection device, and two incoming terminals. The elastic protrusion cooperates with a knockout pin on the junction box for high-voltage power-off protection, and the two incoming terminals are connected with external cables via the junction box.
A standby power supply system for a parking controller. The system comprises a voltage transformation unit, a switch unit and a voltage comparison unit, wherein the voltage transformation unit, the switch unit and the parking controller are sequentially connected in series, and the voltage comparison unit is connected between a low-voltage power supply and the switch unit; and the switch unit comprises a first P-MOS transistor, the voltage comparison unit comprises a comparator, the comparator is used for comparing the voltage of the low-voltage power supply with a set value, and when the voltage of the low-voltage power supply is lower than the set value, the voltage comparison unit drives the first P-MOS transistor to be closed, such that the voltage transformation unit supplies power to the parking controller. By means of the standby power supply system, when a low-voltage power supply for a whole vehicle fails, and thus the normal operation of a parking controller cannot be ensured, a voltage comparison unit detects the fault, and the standby power supply system is started to supply energy to the parking controller, so as to ensure that the parking controller can successfully complete functions such as parking under extreme operating conditions, such that the braking performance of the whole vehicle is safer and more reliable.
B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
61.
Mechanical unlocking mechanism for electronic parking
A mechanical unlocking mechanism for electronic parking is provided, which comprises a parking cam assembly, a pawl assembly, a pull rod assembly and a parking gear; the parking cam assembly comprises a parking guide shaft and a parking cam, the parking cam is sleeved on the parking guide shaft, at least a first convex part and a second convex part are provided at two sides of the parking cam, and a connecting part is provided on the second convex part; the pull rod assembly is connected with the parking cam via the connecting part, and the pull rod assembly pulls the second convex part to drive the parking cam to rotate; the parking gear can be fixed or rotatable according to the pawl assembly being in a first position where the parking gear parks in or a second position where the parking gear parks out as the parking cam rotates.
A stator structure and a flat wire motor are provided. The stator structure comprises a stator core, stator windings and an avoidance layer. The stator core has an inner cylinder cavity, and a plurality of iron core slots arranged at intervals in a circumferential direction on an end face of the stator core. The iron core slot is communicated with the inner cylinder cavity via a slot opening. The stator windings have a plurality of layers of flat wire conductor wound in the iron core slots. The avoidance layer is located between the slot opening and a first layer of flat wire conductor in a radial direction of the stator core. During the operation of the flat wire motor with this stator structure, the skin effect caused by the high-frequency change of the magnetic field will act on the avoidance layer, thereby reducing the skin effect generated at the first layer of flat wire conductor, weakening the influence of the slot leakage flux on the first layer of flat wire conductor, reducing the eddy current loss of the first layer of flat wire conductor, and further reducing the eddy current loss of the whole motor, and thus achieving the technical effect of improving the motor efficiency.
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
63.
Mechanical unlocking mechanism for electronic parking
A mechanical unlocking mechanism for electronic parking is provided, which comprises a parking cam assembly, a pawl assembly, a parking gear, a pull cord assembly and an actuating assembly, wherein the pull cord assembly comprises a pull wire and a guide shaft screw, each of two ends of the pull wire is provided with a pull wire ball head rod, the pull wire ball head rod is connected with an end of the pull wire and is connected with an end hole of the parking guide shaft or the actuating assembly via the guide shaft screw sleeved on the pull wire. The mechanical unlocking mechanism according to the present disclosure provides an emergent mechanical unlocking function when the parking motor is powered off, and the driver can perform manual mechanical unlocking in the cab without getting off the vehicle, so it has high safety and good operation comfort.
An electric drive assembly for a vehicle, comprising a motor (1) and a reducer (2). The motor comprises a motor shaft (3), and the reducer comprises an input shaft (4), an intermediate shaft (5), and an output shaft (6). The input shaft is fixedly connected to the motor shaft. The output shaft and the input shaft are concentrically arranged. The intermediate shaft is arranged parallel to the input shaft and the output shaft. The input shaft drives, by means of the intermediate shaft, the output shaft to rotate. The electric drive assembly has the advantages of a compact structure, simple fabrication, low costs, high performance, and small footprint. A new energy vehicle is also disclosed.
A speed reducer casing, having a liquid-cooling heat dissipation structure disposed on a bottom portion and/or the side wall where a lubricating oil flows through. The liquid-cooling heat dissipation structure comprises a cooling liquid tank (1) and a cover plate (2), the cover plate is used for sealing the cooling liquid tank, and a liquid inlet (3) and a liquid outlet (4) are respectively formed on two ends of the cooling liquid tank; a plurality of convex structures (5) and concave structures (6) are arranged alternately at the bottom of the cooling liquid tank, so that the inner side surface and the outer side surface of the bottom of the cooling liquid tank each are arranged in a wavy shape, thereby increasing the contact area between the cooling liquid tank and the lubricating liquid in the speed reducer casing. The speed reducer casing can achieve heat exchange between a cooling liquid in the cooling liquid tank and the lubricating liquid so that heat in the speed reducer casing is quickly taken away, thereby improving the heat dissipation performance of the speed reducer and prolonging the service life of the speed reducer. The present invention also relates to an electric drive assembly having the speed reducer casing.
A cooling and lubrication apparatus of an electrical drive assembly. The cooling and lubrication apparatus comprises an oil pump assembly, an oil pump channel, and an oil return channel; the oil pump channel comprises a plurality of oil division channels (1), an oil output location of each oil division channel respectively corresponds to a part to be cooled and part to be lubricated within a housing of a motor and a part to be cooled and a part to be lubricated within a housing of a speed reducer; the oil pump assembly is used for pumping lubricating oil within a first housing into the oil pump channel, said oil being supplied to the parts to be cooled and the parts to be lubricated by means of the oil division channels; and the oil return channel is arranged at a bottom portion of a second housing, and is used for causing lubricating oil within the second housing to flow back into the first housing, wherein the first housing is the housing of the motor and the second housing is the housing of the speed reducer, or the first housing is the housing of the speed reducer and the second housing is the housing of the motor. The present cooling and lubrication apparatus can implement active and directional cooling and lubrication of parts to be cooled and parts to be lubricated, and higher cooling and lubrication efficiency is achieved. The present invention further relates to an electrical drive assembly.
An electronic parking mechanism that includes a parking cam assembly, a pawl assembly and a parking gear. The parking cam assembly includes a parking guide shaft and a parking cam that is sleeved on the parking guide shaft, and one side of the parking cam is provided with an arc protrusion along a circumferential direction so that as the parking cam rotates, the pawl assembly is in a first position where the pawl assembly parks in the parking gear and a second position where the pawl assembly parks out the parking gear, respectively. The pawl assembly includes a pawl and a pawl shaft, an upper part of the pawl contacts the parking cam, the pawl shaft is provided on a side of the pawl that can rotate around the pawl shaft.
Disclosed in the present invention is a protection circuit for an active discharge resistor of an electric motor controller. The protection circuit comprises an active discharge logic circuit, a drive circuit, a switch tube and an active discharge resistor, wherein the active discharge resistor and the switch tube are connected to two ends of a busbar capacitor in series; and the active discharge logic circuit is connected to the drive circuit in series and is then connected to the switch tube. The active discharge logic circuit receives a control signal from a microprocessor, and controls the switching on and switching off of the switch tube by using an output pulse signal and by means of the drive circuit, such that active discharge is realized, and the active discharge resistor is prevented from burning out due to the excessively high power consumption of the active discharge resistor. In the technical solution, a microcontroller is added to control an active discharge circuit, and a control method is flexible and variable, such that different applications and requirements can be adapted to; in addition, a protection response action is fast, such that an active discharge resistor can be protected, in a timely manner, from burning out due to overtemperature.
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
H02M 1/32 - Means for protecting converters other than by automatic disconnection
69.
PARALLEL-CONNECTED DUAL MODULE MOTOR CONTROLLER DRIVE STRUCTURE, AND MOTOR CONTROLLER
Disclosed are a parallel-connected dual module motor controller drive structure and a motor controller. The drive structure is used for performing drive control on a motor and comprises a drive board, board-to-board connectors, an upper adapter board, a lower adapter board, and six power modules; the drive board is separately connected to the upper adapter board and the lower adapter board by means of the board-to-board connectors; and sets of three power modules are respectively arranged on a top part of the upper adapter board and a bottom part of the lower adapter board, or sets of three power modules are respectively arranged on a bottom part of the upper adapter board and a top part of the lower adapter board. The described structure is optimized to remedy the problem of uneven currents between power modules, the size of a motor controller is reduced, the power density of a controller is improved, the lengths of alternating and direct current busbars are maximally reduced, stray inductance of a busbar is reduced, and the reliability of the motor controller is greatly improved.
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
70.
BACKUP POWER SUPPLY SYSTEM FOR MOTOR CONTROLLER AND ELECTRIC VEHICLE
Disclosed are a backup power supply system for a motor controller and an electric vehicle. The power supply system comprises a low-voltage battery, a low-voltage DC/DC power supply circuit, a first voltage monitoring circuit, a high-voltage battery, a flyback power supply circuit, and an automatic switching circuit. The low-voltage DC/DC power supply circuit has one end connected to an output end of the low-voltage battery and the other end connected to the motor controller; the flyback power supply circuit has one end connected to an output end of the high-voltage battery and the other end connected to the automatic switching circuit; and the automatic switching circuit is connected to the motor controller. In the technical solution, a monitoring circuit for the low-voltage DC/DC power supply is added on the basis of conventional monitoring of the voltage value of the low-voltage battery so as to ensure that the motor controller can switch to a backup power supply in a timely and reliable manner when any anomaly occurs in a low-voltage power supply system.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
71.
METHOD AND CIRCUIT FOR REDUNDANCY DETECTION OF MOTOR ROTATIONAL SPEED, AND MOTOR CONTROLLER
A method for redundancy detection of a motor rotational speed, comprising: obtaining a phase current signal of a motor, performing filtering and zero-crossing comparison on the phase current signal to determine a first rotational speed of the motor (S1); obtaining a line voltage signal of the motor, and performing filtering and zero-crossing comparison on the line voltage signal to determine a second rotational speed of the motor (S2); and determining the actual rotational speed of the motor according to the first rotational speed and the second rotational speed (S3). Adding redundancy detection of rotational speed based on the phase current and line voltage signals of the motor can make up for the deficiency due to rotational speed detection only by a motor position sensor, and provide higher functional safety, thereby better preventing motor overspeed. In addition, also provided are a circuit for redundancy detection of a motor rotational speed, and a motor controller.
G01P 3/48 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
72.
REPLACEABLE HIGH-VOLTAGE JUNCTION BOX AND MOTOR CONTROLLER
Disclosed in the present invention are a replaceable high-voltage junction box and a motor controller. The high-voltage junction box comprises a wiring end, a connecting end, and an accommodating cavity between the wiring end and the connecting end, and the accommodating cavity is provided with an opening on the connecting end, wherein the wiring end is connected to a high-voltage line, and a plurality of positive high-voltage interfaces and a negative high-voltage interface are provided on the wiring end. The connecting end is connected to a controller shell, and the shape and size of the connecting end are fixed. The high-voltage line is electrically connected to a first connecting conductor on the controller by means of the positive high-voltage interfaces and the negative high-voltage interface. According to the present invention, the high-voltage junction box can be quickly assembled with the controller, the matching between the controller and a plurality of different configuration vehicle types can be realized only by replacing the high-voltage junction box, and parts of the controller are avoided. The high-voltage junction box is simple in structure and low in manufacturing cost.
Disclosed are an absorption capacitor structure that has an insulating housing, and a motor controller. The absorption capacitor structure comprises an insulating housing and a plurality of absorption capacitors, each absorption capacitor is used as a sub-component to be fixed to the interior of the insulating housing from the same side of the insulating housing, each absorption capacitor is provided with a lead-out terminal, and the lead-out terminal is used to connect to a terminal of a power device. A PCB may be connected and fixed on the insulating housing and on a different side of a package absorption capacitor side, so that the insulating housing is used to support the PCB and isolate the PCB from the power device. The described absorption capacitor structure achieves the installation and support of the PCB, and insulates and isolates the PCB and the power device, thereby preventing high voltage on the power device from affecting the PCB.
The present disclosure discloses a locking structure of a differential. The locking structure comprises a bi-stable electromagnetic clutch sleeved on an output axle shaft on one side of the differential. The bi-stable electromagnetic clutch comprises a movable locking disc and a fixed locking disc; the fixed locking disc is fixedly connected to a differential housing, and the movable locking disc and the fixed locking disc have face teeth that can engage with each other. The movable locking disc is sleeved on the output axle shaft, the bi-stable electromagnetic clutch drives the movable locking disc to move axially after being energized, the output axle shaft and the differential housing are locked when the movable face teeth engaged with the fixed face teeth so that the output axle shaft on either side of the differential and the differential housing have a same rotational speed and output torque.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
75.
BUS VOLTAGE SAMPLING CIRCUIT OF MOTOR CONTROLLER AND MOTOR CONTROLLER
A bus voltage sampling circuit of a motor controller and the motor controller. The bus voltage sampling circuit comprises a first sampling circuit and a second sampling circuit; the first sampling circuit and the second sampling circuit are respectively connected between a bus and a microcontroller; wherein the first sampling circuit comprises a first voltage division circuit, a first optical coupler, and an operational amplifier circuit, and the first optical coupler and the operational amplifier circuit are connected in series between the first voltage division circuit and the microcontroller; the second sampling circuit comprises a second voltage division circuit, an ADC circuit, and a second optical coupler; and the ADC circuit and the second optical coupler are connected in series between the second voltage division circuit and the microcontroller. By adding the redundancy design of the second sampling circuit, the safety and reliability requirements of the motor controller are satisfied.
A universal controller which is externally provided with a selection circuit. No less than two types of software logic are configured in the universal controller, and different software logic executes different programs; the universal controller is provided with no less than two configuration ports connected to the selection circuit; the configuration ports are used for receiving inputs of different voltage values of the selection circuit; and the inputs of different voltage values correspond to the different software logic. Also provided is a new energy vehicle. In the present application, a controller may be applied to a plurality of application scenarios without modifying hardware or software of the controller, thereby reducing production and maintenance costs.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
77.
STATOR CORE COOLING STRUCTURE AND MOTOR COOLING SYSTEM
A stator core cooling structure and a motor cooling system are provided. The stator core cooling structure includes a stator core and a motor housing. Axial grooves are distributed on an outer circumference of the stator core and/or an inner circumference of the motor housing, with the axial grooves extending in an axial direction of the stator core and/or the motor housing. The stator core is assembled in the motor housing, and cooling liquid passages are disposed between the stator core and the motor housing by the axial grooves, so that the cooling liquid cools the stator core via the cooling liquid passages.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
78.
OIL-WATER DOUBLE-COOLING ELECTRIC DRIVE ASSEMBLY, AND NEW ENERGY AUTOMOBILE
An electric drive assembly with oil/water dual cooling is provided that includes a motor module, a gearbox module, a water cooling module and an oil cooling module. Lubricating oil is introduced into the front and rear windings of the motor through three oil conveying passages to improve the cooling performance of the motor. Moreover, the gearbox cavity and the motor cavity do not need to be sealed, which avoids the use of high-speed oil seal of motor shaft, and thus the cost of the drive assembly is reduced and the transmission efficiency is improved. The cooling fluid of the motor cools the lubricating oil through the heat exchanger of the gearbox, thereby solving the heat dissipation problem when the gearbox of the new energy vehicle operates at high speed constantly, and thus improving the service life and reliability of the gear and bearing.
A water cooling structure of a reducer and a reducer assembly are disclosed. The water cooling structure comprises a chamber formed by a reducer housing and a cover plate, and the cover plate is fixedly connected to the chamber. The chamber is provided with a water inlet and a water outlet respectively. The chamber is also provided with one or several partition plates on two opposite side walls. The partition plates are arranged in an interdigitating manner and each of the partition plates is connected with only one side wall of the chamber, and there is a gap between the partition plates and the opposite other side wall of the chamber, so as to form an S-shaped water path. The water inlet and water outlet are respectively disposed at both ends of the water path. A plurality of baffles are further vertically provided on the partition plates and side walls of the chamber that are parallel to the partition plates, and the baffles are arranged in an interdigitating manner. The water cooling structure disclosed in the present disclosure is integrated with the reducer housing into one part, and thus has a simple structure, saves space and is convenient to arrange on the vehicle. Moreover, the cooling efficiency is further improved by the above special structure.
A processing method of NPR steel rebar coil is disclosed. The NPR steel rebar is cold processed and has a diameter of less than 14 mm, and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a elongation of not less than 20%. The processing method comprises: an I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a pointing step L50, a butt welding step L60, a hydraulic head-pushing step L70, a cold drawn smoothing step L80, a grit blasting step L90, an in-situ inline annealing step L10, an air-cooled tempering step L11, a coiling step L12, a placing step L13, a flattening step L14, a cold drawn spiral ribbing step L15, a straightening step L16, and a coiling step L17. The method can achieve full intelligence, meet the processing requirements and the automatic intelligent production requirements of NPR steel rebar coil.
B21C 37/04 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of rods or wire
B21F 45/00 - Wire-working in the manufacture of other particular articles
81.
CAPACITOR AND POWER DEVICE ASSEMBLY HAVING COOLING STRUCTURE
A capacitor and power device assembly having a cooling structure, comprising an upper cover plate (1), a housing (2), a lower cover plate (3), a capacitor, and power devices. The capacitor is arranged in a cavity of the housing (2), and the power devices are respectively arranged on the outer sides of the upper cover plate (1) and the lower cover plate (3); the cooling structure comprises a liquid inlet (4) and a liquid outlet (5), which are respectively formed on the upper cover plate (1) and/or the lower cover plate (3); the cooling structure further comprises a first cooling channel and a second cooling channel which are respectively arranged on the upper and lower sides of the upper cover plate (1) and the lower cover plate (3), the first cooling channel is used for cooling the capacitor, and the second cooling channel is used for cooling the power devices. The cooling structure uses the mode of liquid cooling, the first cooling channel is arranged on two sides of the capacitor, so that double-sided cooling for the capacitor is achieved and the cooling efficiency is high, and the cooling structure is further provided with the second cooling channel for cooling the power devices, so that simultaneous cooling for the capacitor and the power devices is achieved; moreover, the space occupied is small and the structure is compact.
A control method for an electromagnetic clutch in a hybrid power system, and a hybrid power system. In addition to an electromagnetic clutch, the hybrid power system also comprises: an engine, a motor, an electromagnetic clutch controller, and a power source system; the power source system comprises: a low-voltage battery, a backup power source system, and a switching circuit; and the electromagnetic clutch is used for controlling the access of the motor. The control method comprises: monitoring whether the voltage of a low-voltage battery is lower than a target value, and determining whether a fault occurs in the low-voltage battery; using a switching circuit to switch a backup power source system to supply power to an electromagnetic clutch and an electromagnetic clutch controller; using the electromagnetic clutch controller to determine an engagement or disengagement state of the electromagnetic clutch; and further controlling the electromagnetic clutch according to the engagement or disengagement state. When a fault occurs in the low-voltage battery, the switching circuit switches the backup power source system to supply power, so that the electromagnetic clutch is ensured to be in a reasonable state, and thus the hybrid power system is safe and reliable.
B60K 6/387 - Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
F16D 27/00 - Magnetically-actuated clutchesControl or electric circuits therefor
H02J 9/04 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
83.
ELECTRIC DRIVE POWER TRANSMISSION SYSTEM BOX ASSEMBLY HAVING STEPPED PIN POSITIONING AND MOUNTING METHOD OF ELECTRIC DRIVE POWER TRANSMISSION SYSTEM BOX ASSEMBLY
Disclosed are an electric drive power transmission system box assembly having stepped pin positioning and a mounting method of the electric drive power transmission system box assembly. The box assembly comprises a housing shaft string assembly, a plurality of stepped pins, a first housing, and a first bearing. The housing shaft string assembly comprises a housing and a shaft string supported on the housing. Each stepped pin comprises a matching section and a guide section, the diameter of the matching section is greater than the diameter of the guide section, a tail end portion of the matching section is fixed in a fixing pin hole of the housing, the first housing is mounted and fixed to the housing shaft string assembly under the guide of the guide section, and a rear end of the shaft string is supported on the first housing by means of the first bearing. According to the technical solution, a large radial gap is formed between the guide section of a stepped pin and a positioning pin hole, the phenomenon that the surface of a first bearing raceway is scratched due to pressing of an inner ring and a roller of the first bearing in the assembly process of the shaft string and the first housing is prevented, and the service life of the bearing and the whole system is prolonged.
A fixing structure for an auxiliary bearing of an electric drive assembly and an electric drive assembly are disclosed. The fixing structure comprises a bearing pressing plate, a bolt, a lock nut, an auxiliary bearing outer ring and an auxiliary bearing inner ring. The bearing pressing plate is provided with a through hole, the housing is provided with a threaded hole, and the bolt passes through the through hole and is fixed in the threaded hole. The bearing pressing plate pre-tightens one side of the auxiliary bearing outer ring, and the housing limits a position of the other side of the auxiliary bearing outer ring. The lock nut is sleeved on the shaft to pre-tighten one side of the auxiliary bearing inner ring, and the gear limits a position of the other side of the auxiliary bearing inner ring. The bearing fixing solution has a simple structure; moreover, the inner and outer rings of the bearing are pre-tightened by threads, thereby avoiding over-positioning of the bearing, reducing the running noise of the bearing, and improving the service life of bearing.
An electric drive assembly is provided with oil/water dual cooling that includes a motor module, a gearbox module, a water cooling module and an oil cooling module. The oil cooling module has three oil cooling passages, and introduces the lubricating oil in the gearbox into the front and rear windings of the motor, thereby improving the cooling performance of the motor, eliminating the need for a motor shaft oil seal, reducing the cost of the drive assembly and improving the transmission efficiency. The water cooling module cools the motor housing through the motor water jacket, and cools the lubricating oil in the gearbox housing through the heat sink at the bottom of the gearbox, thereby solving the heat dissipation problem when the gearbox operates at high speed constantly, and thus improving the service life and reliability of the gear and bearing.
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
The present disclosure discloses a stator assembly and motor. The stator assembly comprises a stator core and a multi-branch rectangular conductor winding, an even number of stator slots are provided on an inner circumference of the stator core, and each of the stator slots is divided into multiple layers for accommodating rectangular conductors. The multi-branch rectangular conductor winding is provided in the stator slots, and the multi-branch rectangular conductor winding comprises B number of parallel branches, and B is an integer multiple of 4. The number of slots per phase per pole, Q, of the stator assembly is an odd number, and Q and B satisfy a relationship that both (Q+1)*2/B and (Q−1)*2/B are integers. In the stator assembly of the present disclosure, by way of the special winding connection design, there is no phase difference of magnetic fields between the parallel branches, and each parallel branch equally passes through each layer in the stator slots, which fundamentally inhibits the generation of circulating current between the parallel branches, suppresses the harmonics, and improves the efficiency of the motor.
A sunken wheel-side motor drive axle that includes an axle beam assembly, two drive motor assemblies, two reducer assemblies and two hub assemblies. The two drive motor assemblies, two reducer assemblies and two hub assemblies are respectively disposed at left and right ends of the axle beam assembly. Moreover, the drive motor assemblies are symmetrically disposed at a bottom of the left and right ends of the axle beam assembly respectively; and the drive motor assemblies transmit power to the reducer assemblies, and the reducer assemblies drive the hub assemblies to rotate.
A dual-motor driving system assembly, comprising coaxially arranged first and second motors, a first geared transmission, a second geared transmission, and several pairs of idler gears (42, 52), wherein the first geared transmission is driven by the first motor; the second geared transmission is driven by the second motor; and the pairs of idler gears (42, 52) are arranged in the first geared transmission and the second geared transmission respectively, and are used to increase the distance (a) between an output shaft (15) of the first motor and an end shaft of the first geared transmission. A vehicle is also disclosed. Since idler gears are added, the center distance between an input shaft and the output shaft in the assembly may be more flexibly adjusted by means of adjusting the size of the idler gears, so as to achieve a large center distance design and make full use of the structural space brought by the large center distance to mount other components. Moreover, adjustments may be made according to different customer space layout requirements and performance requirements.
The present disclosure discloses a stator punching piece, stator core and motor. The stator punching piece is formed by die stamping. An outer circumference of the stator punching piece is provided with a continuous concave-convex structure extending in an axial direction of the stator punching piece for a cooling medium to flow therethrough, so as to increase an heat dissipation area of an outer circumference of a stator core composed of the stator punching pieces and improve a flow state of the cooling medium on the outer circumferential surface of the stator core, thereby increasing a rated power and rated torque of a motor. Since the stator punching piece is formed by die stamping, changing the shape of the outer edge of the stator punching piece has no effect on the manufacturing cost of the motor. Without increasing the cost, the rated power and rated torque of the motor can be increased by 5-10%.
A rotor structure for reducing the operating temperature in a shaft, the rotor structure comprising a hollow shaft body (1) and a shaft inner sleeve (2), the shaft inner sleeve (2) being fitted in the hollow shaft body (1), and a first thermal insulation chamber (3) being formed between the shaft inner sleeve (2) and the hollow shaft body (1). The rotor structure can be applied to a motor, thus the operating temperature of an inner surface of a hollow shaft of the motor can be effectively reduced, and the reliable operation of the motor can be ensured.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
91.
METHOD FOR ACTIVELY HEATING BATTERY PACK BY DRIVING MOTOR AND NEW ENERGY VEHICLE
Disclosed in the present invention are a method for actively heating a battery pack by a driving motor and a new energy vehicle. The method comprises: receiving a torque instruction, obtaining a system loss coefficient according to the torque instruction and the real-time rotational speed of a driving motor, and obtaining a standard current instruction by means of a standard vector control table according to the torque instruction; obtaining a standard heating power according to the system loss coefficient and the standard current instruction; and determining whether a required heating power for heating a battery pack is greater than the standard heating power or not; if yes, determining an actual current instruction according to the required heating power; if not, the standard current instruction being the actual current instruction; and then using the actual current instruction to drive the driving motor to operate, and using heat generated by the driving motor to heat the battery pack by means of a heat exchange system. According to the technical solution, the battery pack can be heated only by improving a driving motor control algorithm, without providing hardware, such that the heating cost is low, and the efficiency is high.
B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
Disclosed in the present invention are a transmission shifting and parking structure and a new energy vehicle. The transmission shifting and parking structure comprises a rotary drive mechanism, a shifting rotation arm, a shifting fork, a shifting actuator, a drive guide shaft, a parking rotation arm, a parking push rod assembly, and a parking actuator; the rotary drive mechanism is used for driving the drive guide shaft to rotate; one end of the shifting rotation arm and one end of the parking rotation arm are fixed on the drive guide shaft and rotate along with the drive guide shaft; the other end of the shifting rotation arm is provided with a cylindrical pin; the cylindrical pin moves along a shifting fork slot provided on the shifting fork along with the rotation of the shifting rotation arm and drives the shifting fork to move; a plurality of positions corresponding to gear positions are provided on the shifting fork slot; the other end of the parking rotation arm is hinged with the parking push rod assembly; and the parking push rod assembly drives the parking actuator to achieve a parking action. The solution employs a set of mechanisms to realize both parking and shifting actions, thereby saving the arrangement space of shifting and parking mechanisms, reducing the number of drive sources and parts, and reducing costs.
An electromagnetic dog clutch is disclosed to solve the technical problem in conventional electromagnetic dog clutches that the friction is easy to occur between a bearing seat and an end cap of a movable gear sleeve. The electromagnetic dog clutch comprises a movable gear sleeve (5) and a fixed gear sleeve (12) that mesh with each other for transmission. A first end cap (6) is provided on an outer side of the movable gear sleeve (5), a bearing (1) is provided on an outer circumference of the movable gear sleeve (5), the bearing (1) is embedded in a bearing seat (7), a rear end of the bearing seat (7) is provided with a positioning surface, and a front end of the first end cap (6) is a vertical plane that matches the positioning surface of the bearing seat (7). The front end of the first end cap (6) is provided with a positioning pin (15), the rear end of the bearing seat (7) is provided with a positioning hole to cooperate with the positioning pin (15), and the positioning pin (15) is inserted into the positioning hole to limit the bearing seat (7) and the first end cap (6) so that they can move in an axial direction relative to each other but cannot rotate relative to each other, thereby preventing the occurrence of friction between them.
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
F16D 27/108 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
94.
ELECTRONIC PARKING GEAR POSITION SELF-LEARNING METHOD AND IMPLEMENTATION METHOD
An electronic parking gear position self-learning method and an implementation method. The self-learning method comprises the following steps: setting respective position reference values of a driving motor and/or a pawl at an unlocking end and a parking end according to design parameters of a parking system (S110); when entering a self-learning proceeding state, performing position self-learning of the driving motor and/or the pawl when the driving motor and/or the pawl are/is at the unlocking end and the parking end, to obtain position self-learning values of the driving motor and/or the pawl when the driving motor and/or the pawl are/is at the unlocking end and the parking end (S120); and determining target positions of the driving motor and/or the pawl at the unlocking end and the parking end according to the position self-learning values and the position reference values (S130). According to the self-learning method, learning concerning the unlocking end and the parking end is performed at the same time, and a control position is bidirectionally determined according to a learning angle; the two ends share the problem of size chain error accumulation, such that the control accuracy is improved.
The present disclosure discloses a combined cooling system for a motor and a motor controller, which comprises a water cooling assembly, an oil cooling assembly, and an oil-water heat exchanger; one end of the water cooling assembly is connected to an cooling water outlet of the motor, the other end is connected to an cooling water inlet of the motor controller and/or a water inlet of the oil-water heat exchanger; one end of the oil cooling assembly is connected to a cooling oil outlet of the motor, the other end of the oil cooling assembly is connected to an oil inlet of the oil-water heat exchanger, and an oil outlet of the oil-water heat exchanger is connected to a cooling oil inlet of the motor. The above technical solution utilizes the temperature characteristics of the motor and the motor controller, and achieves the objects of saving energy in cooling, and improving high power output performance and environmental adaptability of the motor through the cooperation and intelligent control of the water pump, oil pump and fan in the combined cooling system.
B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 11/30 - Structural association with control circuits or drive circuits
B60H 1/00 - Heating, cooling or ventilating devices
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
H02K 9/00 - Arrangements for cooling or ventilating
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
B60K 1/00 - Arrangement or mounting of electrical propulsion units
An electromagnetic clutch. The electromagnetic clutch comprises a fixed component, a driven component, and an elastic component (1); the fixed component comprises a magnetic yoke (2), several iron cores (3) are provided on the magnetic yoke (2), coils (4) are provided on the iron cores (3), the driven component comprises an armature disk (5), and several magnetic steels (6) are provided on the armature disk (5); the armature disk (5) is provided corresponding to the magnetic yoke (2), and the iron cores (3) are provided corresponding to the magnetic steels (6); the elastic component (1) is used for keeping the armature disk (5) at a separation position from the magnetic yoke (2); when the coils (4) are energized in the forward direction, the iron cores (3) attract the magnetic steels (6), and the armature disk (5) overcomes an elastic force of the elastic component (1) and moves to an attraction position with the magnetic yoke (2), so that the fixed component is transmittingly connected to the driven component; and when the coils (4) are energized in the backward direction, the iron cores (3) generate an electromagnetic force to reduce an attraction force of the magnetic steels (6), and the elastic force of the elastic component (1) overcomes the attraction force of the magnetic steels (6) to push the armature disk (5) to the separation position from the magnetic yoke (2).
F16D 27/01 - Magnetically-actuated clutchesControl or electric circuits therefor with permanent magnets
F16D 27/108 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
The present disclosure discloses an electric-machine shaft, wherein the electric-machine shaft is provided with a hollow structure in an axial direction at least one end, and the hollow structure is, at a position close to the end, provided with a coolant pumping mechanism having a spiral groove, so that the coolant is able to enter the hollow structure by an attractive force generated by rotation of the electric-machine shaft; the spiral groove is provided on an inner surface of an annular member, the annular member is fixedly mounted to the hollow structure, or the spiral groove is directly provided on an inner surface of the hollow structure; and the electric-machine shaft is provided with a plurality of groups of coolant channels in an axial direction, the coolant channels are in communication with the hollow structure, and when the electric-machine shaft is rotating, oil liquid inside the hollow structure is thrown out by the coolant channels, to cool components inside an electric-machine housing. In the present disclosure, by providing the hollow structure and the coolant pumping mechanism, a structure similar to a pump is formed, and when the electric-machine shaft is rotating, the coolant can be attracted into the hollow structure, and then be thrown out by the coolant channels, which realizes the cooling and lubrication of the components inside the electric-machine housing, and improves the capacity of heat dissipation of the electric machine.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
98.
ANTI-REVERSE CONNECTION CIRCUIT, AND ELECTRONIC PARKING BRAKE CIRCUIT AND CONTROL METHOD THEREFOR
An anti-reverse connection circuit, and an electronic parking brake circuit and a control method therefor. The anti-reverse connection circuit comprises a power supply access unit and an anti-reverse connection unit, wherein the power supply access unit is connected to an external power supply, and the anti-reverse connection unit is connected to the power supply access unit. The power supply access unit comprises a positive access terminal and a negative access terminal that are respectively connected to positive and negative voltage buses of the external power supply. The anti-reverse connection unit comprises a P-MOS transistor and a control signal access terminal. The P-MOS transistor achieves, according to a pulse control signal received by the control signal access terminal, the on/off control between the power supply access unit and a load, thereby achieving the functions of anti-reverse connection and anti-reverse voltage overshoot. The anti-reverse connection circuit achieves the functions of anti-reverse connection and anti-reverse voltage overshoot of the circuit by using very few components, thereby effectively avoiding power supply voltage reverse connection fault and reverse voltage overshoot fault.
An electromagnetic clutch circuit and an automobile. The electromagnetic clutch comprises: an anti-reverse-connection unit and a clutch half-bridge working unit, wherein the clutch half-bridge working unit comprises a negative electrode access end and a positive electrode access end; and the positive electrode access end of the clutch half-bridge working unit is connected to an external power source by means of the anti-reverse-connection unit. The anti-reverse-connection unit comprises a MOS transistor and a control signal access end, wherein the MOS transistor realizes turning-on/turning-off control between the positive electrode access end of the clutch half-bridge working unit and the external power source according to a pulse control signal received by the control signal access end, thereby realizing anti-reverse-connection and anti-reverse-direction voltage overshoot functions of the electromagnetic clutch circuit. The electromagnetic clutch circuit realizes anti-reverse-connection and anti-reverse-direction voltage overshoot functions of a circuit by using very few devices, such that a power source voltage reverse-connection fault and a reverse-direction voltage overshoot fault are effectively prevented.
The present disclosure discloses an oil-lubrication mechanism for a fore bearing of a water-cooled electric motor and an electric-motor driving assembly, which solves the problems of conventional grease lubrication of the fore bearing of water-cooled electric motors such as serious bearing heat generation and bearing failure and low life caused by easy outflowing of the grease. The oil-lubrication mechanism includes a gear-splashing oil-storage structure provided in a gearbox or a reduction gearbox, and a bearing-baffle oil-storage structure provided at a front end of the water-cooled electric motor; and a gear in the gearbox or the reduction gearbox in operation throws a lubricating oil into the gear-splashing oil-storage structure, and the lubricating oil is delivered via the oil conduit into the bearing-baffle oil-storage structure, thereby lubricating the fore bearing of the water-cooled electric motor, and subsequently the lubricating oil flows back into the gearbox or the reduction gearbox via the oil return tube. In the present disclosure, the lubricating oil that splashes inside the gearbox or the reduction gearbox is introduced into the fore bearing of the water-cooled electric motor, which enables the fore bearing of the water-cooled electric motor to be lubricated by the oil, thereby reducing the heat generation of the fore bearing of the water-cooled electric motor, and improving the life of the fore bearing and the reliability of the electric motor.
