An arm head includes: outer surface parts; a linkage recess provided between the outer surface parts; and front head-side abutment surfaces and rear head-side abutment surfaces provided at the outer surface parts and disposed on two sides of the linkage recess in a long-side direction of the arm head. An arm shank includes: inner surface parts; a linkage shaft provided between the inner surface parts; and front shank-side abutment surfaces and rear shank-side abutment surfaces provided at the inner surface parts, disposed on two sides of the linkage shaft in a long-side direction of the arm shank, and abutted against the front head-side abutment surfaces and the rear head-side abutment surfaces.
A wiper arm includes an arm head, a cover, and an arm body. The cover includes a top wall and a wall part. The top wall includes a fastening part extending toward the arm head side. The wall part includes a protruding part extending toward the arm head side. The arm body includes a connecting part that can be connected to the arm head. With the arm body and the arm head being connected by the connecting part, the arm head is covered by the cover. By one portion of the fastening part being engaged with the arm head, the other portion of the fastening part is brought into contact with the connecting part, and the protruding part is brought into contact with the arm head.
A wiper device includes: lock grooves provided at an arm head and recessed toward both sides in a wiping direction of a wiper blade; and lock claws provided at an arm shank and protruding toward both sides in the wiping direction of the wiper blade. By concave-convex mating of the lock grooves and the lock claws with each other, the arm shank is restricted from rotating by β degrees (about 22 degrees) or more with respect to the arm head, and a state in which the arm shank stands up by α degrees (about 20 degrees), which is smaller than β degrees, with respect to the arm head is maintained.
An arm head includes a head-side engagement part with which a tension spring is engaged. An arm shank includes: a pair of sidewall parts disposed opposed to each other in a wiping direction; a top wall part provided on a side opposite to the wiping surface side of the pair of sidewall parts and connecting the sidewall parts to each other; a shank-side engagement part provided between the sidewall parts and with which the tension spring is engaged; and a spring accommodating recess provided at the top wall part and capable of accommodating a part of the tension spring. When the arm shank is raised, a part of the tension spring is accommodated in the spring accommodating recess, and when the arm shank is raised and viewed from a direction in which the sidewall parts are opposed to each other, the tension spring is hidden by the sidewall parts.
Provided is a wiping device with which it is possible to restrict a wiping cycle during high-speed travel. This wiping device is mounted on a travelling vehicle and causes a wiper blade to perform a reciprocating motion by means of a predetermined drive control device. When the vehicle speed exceeds a predetermined threshold, the control device restricts a wiping cycle of the wiper blade.
Provided is a wiping device capable of inhibiting the formation of an accumulated water line caused by the stopping of a wiper blade. Specifically provided is a wiping device for moving a wiper blade in a reciprocating manner in a prescribed wiping range by means of a prescribed drive control device, wherein the drive control device has, as control modes, a normal mode and a narrow wiping mode in which the wiping range is narrower than in the normal mode, and, when stopping narrow angle wiping in the narrow wiping mode, the wiper blade is moved to a top inversion position of the wiping range and then moved to a stop position.
A wiper control device for controlling an operation of a wiper device is provided. The wiper control device includes an arm operation determination portion sets a stop position for stopping a wiper arm for a predetermined time above a lower reversal position, and when moving the wiper arm stopped on an upper reversal position side with respect to the stop position to a storage position set below the lower reversal position, temporarily stops the wiper arm at the stop position for a predetermined time, and moves the wiper arm to the storage position after the predetermined time elapses. The stop position is an arm falling position at which the wiper arm in a locked back state falls without contacting an engine hood of a vehicle, and a wiper blade contacts a windshield.
The present invention provides a motor device in which operating noise can be reduced while improving ease of assembly. A ground terminal (70) through which flows electrical noise generated by the rotation of a rotating shaft (39) is sandwiched between a motor case and a gear case (51). Between the motor case and the gear case (51), first to third fixing portions (FP1-FP3) comprising first to third motor case-side abutting faces and first to third gear case-side abutting faces (GF1-GF3) are provided, said abutting faces being arranged around the rotating shaft (39) and abutted against each other. The ground terminal (70) is located only between the second fixing portion (FP2) and the third fixing portion (FP3) that form the shortest line segment (second motor case-side line segment and second gear case-side line segment GL2) from among line segments (first to third motor case-side line segments and first to third gear case-side line segments GL1 to GL3) connecting adjacent ones of the first to third fixing portions (FP1 to FP3) in the circumferential direction of the rotating shaft (39).
Provided is a rotary electrical machine which can enhance cooling performance and thus can be operated for a long time. An electrical motor 2 is provided with a stator, a flywheel 10, and a fan 18. The flywheel 10 is provided with: a bottom wall 12; a circumferential wall 13 extending from the circumferential edge of the bottom wall 12 along a first rotation axis A1; and protrusions 85, 86, 87 arranged in flywheel ventilation ports 16. The fan 18 is provided on the outer surface of the bottom wall 12. The fan 18 has a plurality of fan blades 20 arranged side by side in the circumferential direction. The protrusions 85, 86, 87 are arranged at the ends of the fan blades 20 on the bottom wall 12 side.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Provided are: a drive device capable of improving the positional accuracy of an electric motor with respect to a housing; and a drive device assembling method. A drive device 1 comprises a housing 4 and an electric motor 2 having a motor case 6 to be housed in the housing 4. The motor case 6 has a cylindrical part 13 and a flange part 12 protruding in the radial direction from the opening end of the cylindrical part 13. The housing 4 has a plurality of positioning protrusions 43, 44 to which the flange part 12 is abutted and a female screw part 45 for fixing the flange part 12.
Provided are: a rotor with which reduction in the number of components and enhancement of performance can be achieved, and which can be manufactured easily; and a method for manufacturing the rotor. A rotor core 32 comprises: a cylindrical core body 32a that has the inner circumferential part fixed to a rotation shaft 31; a total of four salient poles 32b that are provided to the outer circumferential part of the core body 32a, project outward in the radial direction of the core body 32a, and are disposed at uniform intervals (90˚ intervals) in the circumferential direction of the core body 32a. Magnets 33 each comprise: a first end part 33a that abuts against one salient pole 32b of the adjacent salient poles 32b in the circumferential direction of the core body 32a; and a second end part 33b that faces the other salient pole 32b of the adjacent salient poles 32b in the circumferential direction of the core body 32a with a first gap G1 therebetween. In the shaft direction of the rotation shaft 31, the length dimension of the rotor core 32 is longer than the length dimension of the magnets 33, and one side of the rotor core 32 in the shaft direction is exposed from one sides of the magnets 33 in the shaft direction.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
A wiping device wipes off rainwater on a wiped surface by reciprocating a wiper blade using a predetermined power source. The wiping device includes: a drive circuit, driving the power source, and a control part, controlling the drive circuit. The control part switches a wiping range at an upper reversal position of the wiper blade.
Provided is a motor control device provided with a filter cover part with a simple configuration while suppressing an increase in the number of components and assembly steps. A motor control device 1 comprises: a printed circuit board 20; a terminal connection member 80 having an element connection part 81 connected to switching elements 22 and a terminal part 82 to which external wiring is detachably connected; and a case 10. The case 10 comprises: a base member 11; a main cover 12 which covers a part provided with the printed circuit board 20 and is attached to the base member 11 in a state in which a terminal part 82 is projected in a first direction X; a filter 128 which is provided so as to cover a communication hole 125 formed in the main cover 12; and a sub cover 13 which is detachably provided to the base member 11 so as to cover the terminal part 82. The sub cover 13 integrally has a filter cover part 138 provided so as to cover the filter 128.
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 1/18 - Printed circuits structurally associated with non-printed electric components
Provided is a motor control device which is easily minimized in size while securing an insulation distance of a bus bar to a substrate. A motor control device according to the present invention comprises: a printed substrate (20) that has a surface on which a switching element (22) is mounted; a bus bar (31, 32) that is mounted on the surface of the printed substrate (20) and that is connected to the switching element (22); and an electrolytic capacitor (60) that is electrically connected to the switching element (22) with the bus bar (31, 32) therebetween. The bus bar (31, 32) has a main body (41, 51) that is connected to the printed substrate (20) and a bus bar terminal (42, 52) that is coupled to the main body (41, 51) and that is connected to the electrolytic capacitor (60). The bus bar terminal (42, 52) has a rising part that rises from the surface (20b) of the printed substrate (20) and a capacitor connection part (47, 57) that is bent and extended from an extreme end of the rising part toward the electrolytic capacitor (60) and that is connected to the electrolytic capacitor (60).
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
H01G 2/06 - Mountings specially adapted for mounting on a printed-circuit support
H01G 4/38 - Multiple capacitors, i.e. structural combinations of fixed capacitors
Provided is a motor control device capable of suppressing variation in a separation distance between an electrode to be detected and a magnetic detection element. This motor control device includes a base block 20, a support column part 13A, a substrate, an electrode for energization, and a magnetic detection element. At least a part of a power control circuit is arranged in the base block 20. The support column part 13A is protruded from the base block 20. The substrate is fixed to the base block 20 via the support column part 13A. The electrode for energization is connected to the power control circuit. The magnetic detection element is attached to a position close to the electrode of the substrate, and detects a magnetic field caused by a current flowing through the electrode. The magnetic detection element is arranged in the vicinity of a support part including the support column part 13A at an end part of the substrate in an extension direction thereof.
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
H02K 11/33 - Drive circuits, e.g. power electronics
Provided is a motor control device with which a reduction in size can be achieved and inductance can be decreased. A motor control device (1) according to the present invention comprises: a printed circuit board (20) on which switching elements (22) are mounted; a first bus bar (31) that has first bus bar terminals (42) that are surface-mounted on the surface (20b) of the printed circuit board (20) and are connected to the switching elements (22); a second bus bar (32) that has second bus bar terminals (52) that are surface-mounted on the surface (20b) of the printed circuit board (20) and are connected to the switching elements (22); and electrolytic capacitors (60) that are connected to the first bus bar terminals (42) and the second bus bar terminals (52). The first bus bar (31) and the second bus bar (32) have a first body part (41) and a second body part (51) that are disposed facing each other.
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
A motor control device and a motor control method capable of performing power limitation of a drive circuit more accurately are provided. A motor control device for controlling a motor by supplying a drive signal generated on the basis of a rotation command value by a drive circuit to the motor includes a voltage detection part that detects a voltage of the drive signal as a load voltage, a current detection part that detects a current of the drive signal as a load current, and a power limitation part that detects a load power of the drive circuit on the basis of the load voltage and the load current, and decreases the rotation command value when the load power exceeds a predetermined upper limit value to perform power limitation.
A speed reducer includes a casing, a crankshaft, and a speed reducer main body. The crankshaft has a rotation support part rotatably supported by the casing and an eccentric part eccentric with respect to the rotation support part. The speed reducer main body has an engagement part engaged with an outer circumferential surface of the eccentric part, decelerates rocking rotation of the eccentric part received by the engagement part, and outputs the decelerated rotation to outside. The crankshaft is provided with a flange part protruding to an outward side in a radial direction from an end part of the rotation support part on the eccentric part side and abutting an end surface of the engagement part in an axial direction. The flange part is formed such that a center thereof coincides with a center of the eccentric part in a direction orthogonal to the axial direction.
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 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
A fan device (1) includes a shroud (4) including a motor support unit (42), a fan (3) disposed on a surface side of the motor support unit (42), and a motor (2) supported on a rear side of the motor support unit (42). Multiple air guide passages (426) each penetrating in a thickness direction at positions spaced apart in a circumferential direction and radially outward from a boss 31 of the fan (3) are formed in the motor support unit (42). The fan device (1) further includes an air guide unit (52) that is disposed facing the air guide passage (426) on the rear side of the motor support unit (42), and guides cooling air generated by the fan (3) and passed through the air guide passage (426) to a rear side of a motor bracket (21).
The present invention has a main holder 40 that is coupled to a wiper arm, a vertebra 22 that is held by the main holder 40 and curves with a prescribed curvature, and a blade rubber 30 that is held by the vertebra 22 and makes contact with a front glass 11, wherein the main holder 40 comprises a first claw part 46 and a second claw part 47 that hold the vertebra 22 with a gap in the lengthwise direction thereof, and a supporting protrusion 49 that is provided between the first claw part 46 and the second claw part 47, and protrudes toward the vertebra 22, and the vertebra 22 comprises an elongated hole 22a in which the supporting protrusion 49 is engaged.
A motor includes a busbar terminal including a plurality of layers overlapping in an axial direction. In the busbar terminal, an external connection terminal and a coil connection terminal are formed. A coil terminal part that is pulled out from a winding part overlapping the external connection terminal in the axial direction is connected to the coil connection terminal while being subjected to forming to be pulled out in a circumferential direction.
Provided are: a liquid pump capable of preventing rust from becoming mixed in fuel that is supplied to an internal combustion engine; and a method for manufacturing the liquid pump. A fuel pump 1 includes a pump part P and a pump motor M for driving the pump part P. The pump motor M comprises: a stator 10; a rotor 12 rotatably provided inside the stator 10 in the radial direction; and a flow passage 30 which is formed between the stator 10 and the rotor 12 and through which fuel pumped up by the pump part P flows. A plating film is formed by performing electrolytic plating on an externally exposed outer peripheral surface 14c and an inner peripheral surface 14d of a stator core 14 of the stator 10 in a state in which a plurality of coils 17 and a motor cover 18 are attached to the stator core 14. Traces of an electrode left over from the electrolytic plating are formed on the outer peripheral surface 14c of the stator core 14.
A fifth ball bearing that rotatably supports a rotating shaft is provided on one side of a pinion gear in an axial direction of the rotating shaft. A sixth ball bearing that rotatably supports the rotating shaft is provided on the other side of the pinion gear in the axial direction of the rotating shaft. A carrier is provided with a bearing fixing portion that supports the fifth ball bearing immovably in the axial direction of the rotating shaft, and a bearing guide portion that supports the sixth ball bearing movably in the axial direction of the rotating shaft. The fifth and sixth ball bearings are provided so as not to be close to each other in the axial direction of the rotating shaft, and a female screw portion has a rattling adjustment member that presses the sixth ball bearing toward the side where the fifth ball bearing is provided.
F16H 1/34 - Toothed gearings for conveying rotary motion with gears having orbital motion involving gears essentially having intermeshing elements other than involute or cycloidal teeth
F16H 57/08 - General details of gearing of gearings with members having orbital motion
Provided is an electric motor in which the filling amount of an adhesive for fixing a portion in the vicinity of a wire end section of a coil can be reduced and assembly work time can be shortened. The electric motor includes a stator and a rotor. A plurality of coils 33 of the stator are wound around respective teeth of a stator core 34. A bus bar unit is disposed on one end side of the stator core in the axial direction. The bus bar unit has a plurality of bus bar terminals 51Ub, 51Vb, 51Wb disposed so as to straddle winding sections of the respective coils adjacent to each other in the circumferential direction. The bus bar terminals are each provided with a wire start connection part 54s to which a wire start section 33s of one of the adjacent coils is connected and a wire end connection part 54e to which a wire end section 33e of the other adjacent coil is connected. A filling opening 65 for filling the winding section of the coil in the vicinity of the wire end section with an adhesive is provided between the wire start connection part and the wire end connection part of each bus bar terminal.
A control device includes a control board on which a control circuit for controlling an electric motor is mounted, a housing that supports a surface on a side of the control board in a thickness direction, and a cover attached to the housing to cover a surface on the other side of the control board in the thickness direction and a periphery of the control board. First positioning holes penetrating in the thickness direction are formed in the control board. Second positioning holes respectively corresponding to the first positioning holes are formed in the housing. The cover includes positioning pins that protrude toward the housing and have a tapered shape in which a diameter of a circumscribed circle gradually decreases toward a tip. The positioning pin is inserted into the first positioning hole and the second positioning hole corresponding thereto to position the control board, the housing, and the cover.
A motor device includes an electric motor, a control board on which a control circuit controlling the electric motor is mounted, a metal housing supporting a first surface of the control board, a resin cover attached to the housing to cover a second surface of the control board opposite to the first surface and the periphery of the control board, and a heat dissipation member dissipating heat generated by a heating element included in the control circuit to the housing. The heat dissipation member includes a heat reception plate fixed to the cover, and a heat transfer plate protruding toward the housing. The housing includes, outside the motor accommodation space, a reception portion receiving a protrusion end of the heat transfer plate inserted in a direction in which a rotation shaft extends, and a heat exhaust wall extending in the and coming into surface contact with the heat transfer plate.
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 11/30 - Structural association with control circuits or drive circuits
H02K 11/33 - Drive circuits, e.g. power electronics
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
b, which allows the shaft coupling 70 to be accurately fixed to the carrier 60 formed with high processing accuracy. Therefore, a planetary gear reduction mechanism 10 is realized, which is capable of accurately driving a drive mechanism of a robot, which is an object to be driven.
Provided is a motor control device that can discharge the charge of a ripple-absorbing capacitor without performing feedback control with respect to the q-axis current and d-axis current. The invention is provided with: a drive circuit for driving a motor; a ripple-absorbing capacitor connected to a power supply line of the drive circuit; a feedback control unit for applying a first drive signal corresponding to an electrical angle to the drive circuit on the basis of feedback control with respect to a d-axis current and a q-axis current; a phase voltage control unit for applying a second drive signal corresponding to a predetermined phase voltage corresponding to an electrical angle to the drive circuit without use of feedback control; and a selection unit for alternatively selecting either the first drive signal or the second drive signal and applying same to the drive circuit. When the charge of the ripple-absorbing capacitor is being discharged, the selection unit selects the second drive signal, and the phase voltage control unit outputs the second drive signal corresponding to a predetermined phase voltage for supplying a predetermined d-axis current to the motor.
Provided is a motor device capable of reducing the number of components and being easily assembled. The present invention comprises: a motor case 31 to which a stator 32 is fixed; a housing 41 against which the motor case 31 is butted; a rotary shaft 34 which is housed inside the motor case 31 and the housing 41; a first metal BR1 which is provided in the motor case 31 and supports the axial-direction base side of the rotary shaft 34; a second metal BR2 which is provided in the housing 41 and supports the axial-direction tip side of the rotary shaft 34; a ball bearing 36 which is provided between the first metal BR1 and the second metal BR2 in the axial direction of the rotary shaft 34 and supports the rotary shaft 34; and a holder member 38 which is positioned on the ball bearing 36 and holds a plurality of conductive members 39. The holder member 38 is sandwiched between the motor case 31 and the ball bearing 36.
Provided are: a motor device capable of adjusting the rotation balance of a rotor while suppressing an output torque reduction or the like; and a method for manufacturing the same. A rotor 33 equipped with a rotating shaft 34, a rotor core 33a fixed to the rotating shaft 34, a magnet MG fixed to the rotor core 33a, and an adjustment member 37 which is fixed to the rotating shaft 34 and adjusts the rotation balance of the rotor 33, wherein the separation distance L1 between the magnet MG and the adjustment member 37 in the axial direction of the rotating shaft 34 is greater than the separation distance L2 between the magnet MG and the stator 32 in the radial direction of the rotating shaft 34 (L1>L2). As a result, the rotation balance of the rotor 33 can be adjusted, and the adjustment member 37 can be positioned farther from the magnet MG than is the stator 32. Thus, movement of the magnetic flux [Wb] from the magnet MG toward the adjustment member 37 is suppressed, and is efficiently directed toward the stator 32.
Provide is a wiping device that wipes off rainwater from a wiped surface by reciprocating a wiper blade by a power source. The wiping device includes a drive part that drives a power source; and an operation part that outputs an operation signal specifying a standby position of the wiper blade to the drive part.
Provided is a wiping device capable of reducing an interference risk between a wiper blade and another member. This wiping device reciprocates a wiper blade by driving a power source by using a prescribed drive signal and corrects the reversing position of the wiper blade by changing the drive signal in accordance with wind pressure applied on the wiper blade. The wiping device comprises a drive control unit that acquires a first wind pressure estimation value based on a vehicle speed and a second wind pressure estimation value based on the drive signal, corrects the reversing position on the basis of the first wind pressure estimation value when the first wind pressure estimation value is greater than the second wind pressure estimation value, and corrects the reversing position on the basis of the second wind pressure estimation value when the first wind pressure estimation value is equal to or smaller than the second wind pressure estimation value.
A motor device includes: multiple conductive members, provided on one side of a stator in an axial direction of a rotor, positioned across a first insulator split body toward a radial direction of the rotor, and connected to a winding start portion and a winding end portion of a coil; inner and outer support walls, provided on one side of the first insulator split body in the axial direction of the rotor and supporting the coil, which are wrapped around the first insulator split body, from inside and outside in the radial direction of the rotor; and a recessed portion, provided on the outer support wall, opening toward the inner support wall and the one side of the first insulator split body in the axial direction of the rotor. The recessed portion is configured between adjacent conductive members when the stator is viewed from one side in the axial direction.
H02K 3/44 - Protection against moisture or chemical attackWindings specially adapted for operation in liquid or gas
H02K 3/52 - Fastening salient pole windings or connections thereto
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
In a motor device, a case includes a total of three first insertion holes through which fixing male screws fixing the case to a bracket are respectively inserted, and a total of three second insertion holes through which fixing bolts fixing the bracket to an electric brake device are respectively inserted. The bracket has a total of three female screw members into which the fixing male screws are respectively screwed, and insertion holes of a total of three collars through which the fixing bolts are respectively inserted. The total of three second insertion holes and the insertion holes of the total of three collars respectively include round holes that are arranged on an axis with each other and position the case with respect to the bracket.
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 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
A wiper motor includes a rotor shaft, a rotor yoke, a stator core, a first ball bearing, and a second ball bearing. The rotor shaft is configured parallel to an output shaft and rotates a gear portion. The rotor yoke is fixed to the rotor shaft. The stator core has a cylindrical portion. A part of the rotor shaft and a part of the rotor yoke are inserted into the cylindrical portion. The first ball bearing is fixed to a motor housing. The second ball bearing is fixed to a base plate. At least a part of each of the first ball bearing and the second ball bearing B2 is configured inside the cylindrical portion.
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
B60S 1/08 - Wipers or the like, e.g. scrapers characterised by the drive electrically driven
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
Provided is a wiping device capable of performing wiping suitable for heavy rain without increasing power consumption. The wiping device wipes rainwater from a surface to be wiped by using a prescribed power source to cause a wiper blade to engage in reciprocating motion, in which the wiping device comprises a power source driving unit that sets the wiping range in a heavy rain mode narrower than the wiping range in a normal mode, and sets the wiping range in the heavy rain mode to the minimum wiping area stipulated by law.
A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, outputting a communication verification command when a diagnostic signal including information indicating whether the mechanism or equipment to be controlled by a combination of the MCU and the predriver is in a fail state is input from the predriver to the MCU; a signal content judgment portion, judging whether a content of the diagnostic signal is in the fail state when the communication verification command is input and outputting a communication execution command when the content of the diagnostic signal indicates the fail state; and a communication portion, executing a communication between the MCU and the predriver for reading fail information of the predriver when the communication execution command is input.
H02P 23/28 - Controlling the motor by varying the switching frequency of switches connected to a DC supply and the motor phases
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 11/35 - Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
40.
CONTROL DEVICE AND COMMUNICATION METHOD IN CONTROL DEVICE
A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, judging whether or not a timing is to execute a communication between the MCU and the predriver and outputting a communication execution command when the timing is judged to be a timing to execute the communication between the MCU and the predriver; and a communication portion, executing the communication between the MCU and the predriver when the communication execution command is input. The communication timing judgment portion judges a timing that does not overlap with a timing at which noise occurs due to a factor other than the communication between the MCU and the predriver as the timing to execute the communication between the MCU and the predriver.
Provided is a two-wheel drive device capable of improving the maintainability and cooling performance of a rotating electrical machine. A two-wheel drive device 1 comprises a plurality of electric motors 2 and a transmission unit 3 that transmits rotary force of the electric motors 2 to an axle. The transmission unit 3 includes a unit case 40 and a transmission mechanism 70 that is stored inside the unit case 40 and that outputs the rotary force of the electric motors 2 to the axle. The plurality of electric motors 2 are provided separately from the unit case 40 and are disposed outside of the unit case 40.
B62M 7/12 - Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
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
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
b; and three support parts 21, 22, 23, protruding from the body part 20. The first support part 22 and the third support part 23 in the three support parts 21, 22, 23 include fixed parts 30 fixed via bolts 105 and engagement pins 38 provided in the fixed parts 30 and engaged with the vehicle body.
Provided is a vehicle lamp body device with which the direction of exit light, which is caused to exit to the outside, can be expanded further toward the outside in the vehicle width direction. The vehicle lamp body device comprises a light source and a light guide member (11). The light guide member comprises an incident portion, an exit wall (18), an intermediate light guide wall (19), a first reflection surface, a second reflection surface (21), and a third reflection surface (22). The exit wall extends in the vehicle front-rear direction, and one end side thereof in the extending direction forms an exit surface. The intermediate light guide wall guides the light incident on the incident portion to the other end side of the exit wall. The first reflection surface is disposed in an incident region of the intermediate light guide wall and internally reflects, as first parallel light, the light incident on the incident portion. The second reflection surface is disposed in an incident region on the other end side of the exit wall and internally reflect the first parallel light as second parallel light. The third reflection surface is disposed in a region facing the second reflection surface on the other end side of the exit wall and reflects part of the second parallel light as lateral transmitted light (Ls) that is transmitted through a side surface (18so) of the exit wall.
Provided is a vehicle lamp device capable of efficiently emitting light from the entire area of an output surface of a light guide member. The vehicle lamp device comprises a light source and a light guide member 11. The light guide member 11 includes an input portion 17, an output wall 18, an intermediate light guide wall 19, a first reflection surface 20, and a second reflection surface 21. One end side in a vehicle front-rear direction of the output wall 18 constitutes an output surface. The first reflection surface 20 causes light entering the input portion 17 to be radially internally reflected as first parallel light travelling toward the other end side of the output wall 18. The second reflection surface 21 is defined into a plurality of face elements 21a by a plurality of step portions 22 having step portion ridge lines 22r extending in a direction intersecting with an outline of the output wall 18. The plurality of face elements 21a, which are disposed at positions spaced apart from the first reflection surface 20 in the vehicle width direction along the outline, are separated by the step portions 22, the step portion ridge lines 22r of which are inclined at a certain angle with respect to the outline when viewed in the vehicle front-rear direction.
Provided is a vehicle lamp making it possible to improve visibility from the exterior and design properties, and effectively distribute light emitted from a light source, thus efficiently obtaining light which is emitted outward in the vehicle width direction, as is legally required. A vehicle lamp (1) is provided with a lens (4), and a luminous body (6) for emitting light (B) to an outer surface (10a) side of a lens body (10) via the lens (4). An inner surface (10b) of the lens body (10) has a lens cut region (AR), and in the lens cut region, formed is at least one lens cut part (16) for distributing light so that the light (B) that is from the luminous body (6) and incident in the lens (4) is emitted outwardly along the optical axis (OP) direction. An additional reflective surface (18) is formed in part of the lens cut region. Of the light (B) that is from the luminous body (6) and incident in the lens (4), the additional reflective surface (18) internally reflects the light (B) that is internally reflected at the outer surface (10a), and the additional reflective surface orients the light (B) so that the same is emitted outwardly along a direction intersecting the optical axis (OP) direction.
F21S 43/20 - Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
A brushless motor includes a motor body, a bracket, and a power supply structure for supplying power to the motor body through a through hole in the bracket. The motor body includes a stator having a core with teeth and a coil formed of a winding wound around the teeth. The power supply structure includes, for each phase, a winding pair including a first lead portion and a second lead portion of the winding, a guide part that guides the winding pair, and a connector part where the lead portions are electrically connected. The winding pair includes a first portion guided by the ide part and a second portion formed by bending the winding pair at an axially outer end of the first portion along a surface of the bracket. The first portion passes through the through hole in the axial direction. The second portion extends to the connector part.
An insulator attached to a core body in an annular shape and multiple teeth protruding from the core body along a radial direction for insulating the teeth and a coil wound around the teeth includes: a tooth end surface covering part covering an axial end surface of the tooth. The tooth end surface covering part includes: an inclined part provided on a front surface of the tooth end surface covering part on a side opposite to the tooth and inclined such that its height from the axial end surface of the tooth gradually changes along the radial direction; and an inclined part parallel part and a tooth parallel part provided on a back surface of the tooth end surface covering part on the tooth side and concave in a direction away from the axial end surface of the tooth.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
Provided is a fuel supply device that enables swift recovery of fuel suction performance of a fuel pump when a suction filter becomes clogged, even when handling a fuel including alcohol. The fuel supply device comprises a fuel pump 3, a suction filter 90, a deaeration hole and a discharge pipe. The fuel pump 3 is disposed in a fuel tank 2 in which a fuel including alcohol is stored. The suction filter 90 is connected to a fuel suction port of the fuel pump 3. The deaeration hole is for discharging, to the outside, trace gasses that are produced inside a suction part of the fuel pump 3. One end part of the discharge pipe is connected to the deaeration hole. Trace gasses discharged from the deaeration hole are discharged from a discharge port at the other end part of the discharge pipe. The suction filter 90 comprises a first filtration region 92 and a second filtration region 93. The second filtration region 93 has a second filtration surface 93s in which clogging is less likely to occur than in a first filtration surface 92s of the first filtration region 92.
F02M 37/34 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
F02M 37/20 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
Provided is a motor in which the temperature of a high-temperature point of a winding coil can be properly detected and the assembling can be facilitated. A motor 1 comprises: a stator 3; a rotatably attached rotor 2; a cylindrical insulator 11 that is attached to the stator 3, has a plurality of winding-wound portions 11d arranged in the circumferential direction, and has an insulating property; a plurality of winding coils 12 formed by winding windings 12a around the respective winding-wound portions 11d of the insulator 11; and a temperature detection sensor 13 that detects the temperatures of the winding coils 12. An opening portion 15e for making the temperature detection sensor 13 contact with the winding coils 12 is provided on the outer circumferential side of at least one of the plurality of winding-wound portions 11d. The opening portion 15e is formed along the lamination direction of the winding coils 12.
Provided are a motor and a method for manufacturing the same, which make it possible to firmly fix an insulator and appropriately suppress vibrations during driving. A motor 1 comprises: an insulative cylindrical insulator 11 having a plurality of winding wiring parts 11d arrayed in the circumferential direction; a cylindrical stator 3 having a plurality of winding coils 12 provided to the respective winding wiring parts 11d of the insulator; a rotor 2 rotatably disposed inside the stator 3; and an annular busbar unit 7 through which power is supplied to the winding coils 12. The busbar unit 7 is fixed to one end side of the insulator 11.
The motor includes a circuit board that controls the generation of a magnetic field for rotating a rotor by supplying currents to coils, and a slit terminal (60U) that electrically connects a winding wire to the circuit board. The slit terminal (60U) includes a pair of legs (63A, 63B) arranged to face each other across the winding wire (244U) at an interval that is narrower than a diameter of a core wire. A motor bracket includes a terminal holder (43U) that has peeled piece accommodation spaces (52A, 52B) for accommodating the peeled pieces (245U) peeled off from the winding wire (244U) press-fitted between the pair of legs (63A, 63B).
A rotor is provided with: a rotor core (32); a plurality of permanent magnets (33); a substantially tubular magnet cover (71); and a load reception block (70). The rotor core (32) rotates integrally with a rotary shaft of a motor. The permanent magnets (33) are arranged on the outer peripheral part of the rotor core (32). The magnet cover (71) covers the exterior of the plurality of permanent magnets (33) and the rotor core (32), and has a flange part which is bent radially inward at the end along a rotation axis. The load reception block (70) is disposed between the flange part and the end surface of the rotor core (32) in a direction along the rotation axis, and abuts against the flange part and the rotor core (32).
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Provided is a fan device that is capable of appropriately cooling a motor while securing cooling wind for cooling an object to be cooled without increasing the size thereof. A fan device (1) is provided with: a shroud (4) including a motor support part (42); fan (3) disposed on a front surface side of the motor support part (42); and a motor (2) supported on a rear surface side of the motor support part (42). The motor support part (42) has a plurality of wind guiding paths (426) formed at positions separated in a circumferential direction on a radially outer side than a boss 31 of the fan (3), each of the wind guiding paths (426) penetrating in a thickness direction. The fan device (1) is disposed opposite to the wind guiding paths (426) on the rear surface side of the motor support part (42), and further provided with a wind guiding part (52) that guides cooling wind that has been generated by the fan (3) and has passed through the wind guiding paths (426) to a rear surface side of a motor bracket (21).
A cylindrical member 93 is provided with a pair of slits 93a, 93b extending in the axial direction of the cylindrical member 93. The opening widths of the pair of slits 93a, 93b in the circumferential direction of the cylindrical member 93 are narrower on the outside (opening widths W2, W4) of the cylindrical member 93 than on the inside (opening widths W1, W3) thereof. This makes it possible to prevent rainwater and the like from reaching a communication hole 91 inside the cylindrical member 93 and quickly discharge the rainwater and the like intruded into the inside of the cylindrical member 93 to the outside of the cylindrical member 93. Accordingly, it is possible to effectively prevent the rainwater and the like from intruding into the inside (hollow portion) of a gear cover 80, thereby enabling to improve a water exposure reliability.
The present invention facilitates the position determination of two actuators. This driving device 1 is characterized by comprising: a case 3; a plurality of motors 2 which are received in parallel in the case 3; and a holder 10 which determines the relative positions of the motors, wherein the motors are all mounted on the holders.
H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
H10N 10/817 - Structural details of the junction the junction being non- separable, e.g. being cemented, sintered or soldered
H10N 10/851 - Thermoelectric active materials comprising inorganic compositions
A rotor core includes: a plurality of salient poles that protrude outward in a radial direction from a rotor core main body portion and are arranged between magnets which are adjacent to each other in a circumferential direction, a holder includes: an annular portion that is arranged to overlap an end surface in an axial direction of the rotor core main body portion; and a leg portion that protrudes outward in a radial direction from the annular portion and is arranged to overlap an end surface in an axial direction of the salient poles, and a press fit rib in which a magnet cover is pressed into the leg portion is provided on an outer end section in a radial direction of the leg portion.
In the present invention, a first annular convexity 75 supporting an axially distal end of a magnet 63 is provided to a portion of another side surface 74 of a stopper plate 70 facing the magnet 63. A second annular convexity 76 supporting an axially distal end of a rotor body 62 is provided to a portion of the another side surface 74 of the stopper plate 70 facing the rotor body 62. A communicating path 75a creating communication between a radially inward side and a radially outward side of the first annular convexity 75 is provided to the first annular convexity 75. When a rotor 60 is being assembled, air flows gently through the communication path 75a, and adhesive bulging out of a first adhesive-accommodating recess 77 of the radially inward side of the first annular convexity 75 will not burst out into a second adhesive-accommodating recess 78 of the radially outward side of the first annular convexity 75. The foregoing enables improvement in the ease of assembly.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
59.
Motor control device, motor device, wiper device, and motor control method
A motor control device includes a driving control part and an upper limit value setting part. The driving control part controls motor driving by switching between a first driving mode and a second driving mode, and controls an output duty ratio so as not to exceed a duty ratio upper limit value. The upper limit value setting part sets, as the duty ratio upper limit value, a low rotation duty ratio upper limit value, a maximum duty ratio upper limit value corresponding to a maximum output value, and an upper limit value of a transition period from the low rotation duty ratio upper limit value to the maximum duty ratio upper limit value, and changes slope information indicating a change amount in the upper limit value of the transition period according to the driving mode when switching between the first driving mode and the second driving mode.
A motor control device which controls a motor having an output shaft includes a vehicle speed detection part and a driving control part. The vehicle speed detection part detects a vehicle speed, which is a traveling speed of a vehicle mounted with the motor. Based on the vehicle speed detected by the vehicle speed detection part, the driving control part performs control of switching between a first driving mode which drives the motor, and a second driving mode in which a number of revolutions of the output shaft and an output of the motor are higher than in the first driving mode.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
B60S 1/08 - Wipers or the like, e.g. scrapers characterised by the drive electrically driven
The present invention reduces the number of parts and improves the work involved in assembly. The present invention has a main holder 40 that is coupled to a wiper arm, a vertebra 22 that is held by the main holder 40 and curves with a prescribed curvature, and a blade rubber 30 that is held by the vertebra 22 and makes contact with a front glass 11, wherein the main holder 40 comprises a first claw part 46 and a second claw part 47 that hold the vertebra 22 with a gap in the lengthwise direction thereof, and a supporting protrusion 49 that is provided between the first claw part 46 and the second claw part 47, and protrudes toward the vertebra 22, and the vertebra 22 comprises an elongated hole 22a in which the supporting protrusion 49 is engaged.
A case 31 has a total of first to sixth flat parts 32A to 32F arranged in a circumferential direction of the case 31 and a total of first to sixth arced parts 32a to 32f connecting adjacent flat parts with each other. When viewed in an axial direction of a shaft 44, inner circumferential surfaces CF of the first to sixth arced parts 32a to 32f are each formed in an arced shape having a radius R1 and a center AC of the case 31 as the center. In addition, since the stator 35 is only supported by the inner circumferential surfaces CF (six in total), the press-fit load of the stator 35 with respect to the case 31 can be reduced, and it is possible to increase the assembling accuracy.
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
63.
STATOR, MOTOR, FAN DEVICE, AND COIL WINDING METHOD
A stator includes: an A-phase coil, wound around four of 12 teeth and supplied with an A-phase current; a B-phase coil, wound around another four of the 12 teeth and supplied with a B-phase current; a C-phase coil, wound around yet another four of the 12 teeth and supplied with a C-phase current. The A-phase coil includes a transition part extending along the cylindrical part on an axial side between the teeth spaced apart in the circumferential direction. The B-phase and C-phase coils each include a transition part extending along the cylindrical part on another axial side between the teeth spaced apart in the circumferential direction. The turns of the first A-phase coil are one turn fewer than the turns of the first B-phase coil and the turns of the first C-phase coil.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 15/085 - Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
A brushless motor includes a motor part and a gear part. The motor part includes: a rotating shaft, having a first gear; a rotor, having a bottom wall and a side wall, the bottom wall being fixed to the rotating shaft; magnets, fixed to the side wall and arranged side by side in a circumferential direction of the rotor; a stator, provided between the rotating shaft and the magnets in a radial direction of the rotor and wound with a coil; and a motor housing, rotatably supporting the rotating shaft, and accommodating the rotor and the stator. The gear part includes: a second gear, meshed with the first gear; an output shaft, having an output part, having a base end side thereof fixed to the second gear, and parallel to the rotating shaft; and a gear housing, rotatably supporting the output shaft, and accommodating the second gear.
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
F16H 1/08 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herring-bone, or like teeth
B60S 1/08 - Wipers or the like, e.g. scrapers characterised by the drive electrically driven
B60S 1/26 - Means for transmitting drive mechanically by toothed gearing
A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
F16H 1/08 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herring-bone, or like teeth
F16H 55/06 - Use of materialsUse of treatments of toothed members or worms to affect their intrinsic material properties
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
Provided is a motor including a stator and a rotor. The rotor includes a rotor core rotating integrally with an rotation shaft and having a core base end part fixed to the rotation shaft and core protrusions protruding outward in a radial direction from the core base end part; and a magnet disposed between the core protrusions adjacent to each other in a circumferential direction on an outer peripheral surface of the core base end part. A central position of the stator core in the axial direction, a central position of the rotor core in the axial direction, and a central position of the magnet in the axial direction are deviated from each other. The central position of the magnet in the axial direction is located between the central position of the stator core in the axial direction and the central position of the rotor core in the axial direction.
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
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
F16H 1/08 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herring-bone, or like teeth
The invention reduces the stoppage of operation due to a sudden decrease in rotation speed. A motor device includes a motor that is rotationally driven; a drive signal generator that controls a duty ratio indicating a drive output of the motor so as not to exceed a duty ratio upper limit value, and generates a drive signal corresponding to the duty ratio; an inverter that outputs an output signal for rotationally driving the motor based on the drive signal; a rotation speed detector that detects a rotation speed of the motor; an acceleration detector that detects whether the motor is accelerating; and an upper limit value setting part that changes the duty ratio upper limit value to a second upper limit value higher than a preset first upper limit value in response to rotation of the motor being accelerating.
H02P 29/00 - Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
Provided is a fuel supply device that can be positioned in a space-saving manner, and with which strength can be maintained even when size is reduced, fuel supply efficiency can be improved, and fuel suction efficiency can be improved. A fuel supply device 1 for supplying fuel in a fuel tank 2 comprises a flange member 30 having an oval profile that covers an opening 2b opening into the fuel tank, a fuel pump 10 positioned in the fuel tank, a pump housing member 20 that houses the fuel pump and that is attached to the flange member, and a fuel flow passage housing section 70 that contains a fuel flow passage passing through the flange member in the thickness direction and that protrudes into the fuel tank, the fuel pump being connected at one longitudinal end to the fuel flow passage housing section and having a fuel suction port 14 formed at the other end, and the fuel suction port of the fuel pump being located outside the contour of the flange member when viewed in the thickness direction of the flange member.
Provided is a fuel supply device which can be disposed in a space saving manner, can maintain strength even when miniaturized, and enables setting of the assembling position of a pump storage member. A fuel supply device 1 which supplies fuel in a fuel tank 2 comprises: a flange member 30 having an oval contour shape that covers an opening 2b opened in the fuel tank; a fuel pump 10 disposed in the fuel tank; a pump storage member 20 that stores the fuel pump and that is fitted to the flange member; a guiderail structure 100; and a tail end regulation unit 250 that regulates the fitting positions of the flange member and the pump storage member fitted to each other at the slide tail end between the flange member and the pump storage member.
F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
The present invention provides a fuel supply device that can be disposed in a space-saving manner, that enables an increase in fuel supply efficiency, and that enables an increase in fuel suction efficiency. Provided is a fuel supply device 1 which supplies fuel to a fuel tank 2, said fuel supply device 1 comprising: a flange member 30 which has an oval contour and which covers an opening 2b that is in a side wall surface part 2c of the fuel tank; a fuel pump 10 which is disposed inside the fuel tank along a placement surface 30a of the flange member; a pump accommodation member 20 which accommodates the fuel pump and which is attached to the flange member; a fuel flow path accommodation part 70 inside which is disposed a fuel flow path that passes through the flange member in the thickness direction and which protrudes into the fuel tank from the placement surface; discharge piping 34a which is outside the fuel tank; and an external connector 33 which is outside the fuel tank. The long axis direction of the oval contour of the flange member is inclined.
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
This invention makes it possible to prevent mold complexity, improve mold releasability, and reduce mold size, and prevents a decrease in strength. A fuel supply device 1 for supplying a fuel in a fuel tank 2 comprises a flange member 30 having an oval profile that covers an opening 2b opened in a side wall surface 2c of the fuel tank, a fuel pump 10 disposed within the fuel tank along a placement surface 30a of the flange member, a pump housing member 20 that houses the fuel pump and that is attached to the flange member, a fuel flow passage housing section 70 that contains a fuel flow passage passing through the flange member in the thickness direction and that protrudes into the fuel tank from the placement surface, a discharge pipe 34a outside the fuel tank, and an external connector 33 outside the fuel tank, a radially-outward-extending support plate part 70e being formed on the outer circumference of the fuel flow passage housing section, and the support plate part standing upright from the placement surface.
The present invention improves workability in attaching and connecting a fuel supply device. A fuel supply device 1 that supplies fuel contained in a fuel tank 2 comprises: a flange member 30 having an oval contour shape covering an opening 2b open in the fuel tank; a fuel pump 10 disposed in the fuel tank along an arrangement surface 30a of the flange member and the long-axis direction of the oval contour; a cylindrical pump housing member 20 that houses the fuel pump and is attached to the flange member; a fuel flow path accommodating portion 70 inside which a fuel flow path passing through the flange member in the thickness direction is disposed and which protrudes from the arrangement surface into the fuel tank; a discharge pipe 34a extending outside the fuel tank along the arrangement surface and the long-axis direction of the oval contour; and an external connector 33 extending outside the fuel tank along the arrangement surface and the long-axis direction of the oval contour and connected to wiring supplying power to the fuel pump.
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 37/08 - Feeding by means of driven pumps electrically driven
F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
Provided is a lighting control device that can accommodate various lighting modes, while avoiding an increase in system complexity. This lighting control device comprises a first output unit connected to a lighting circuit, a second output unit connected to the lighting circuit, and an input circuit which accepts an input signal and specifies to the lighting circuit either a first lighting mode in which only a first lamp is caused to blink, or a second lighting mode in which the first lamp and a second lamp are caused to blink synchronously, wherein, if the first lighting mode is specified by the input circuit, the lighting circuit supplies an electric current only from the first output unit to the first lamp, and if the second lighting mode is specified by the input circuit, the lighting circuit supplies an electric current from the first output unit to the first lamp and supplies an electric current from the second output unit to the second lamp.
B60Q 1/34 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
B60Q 1/38 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
B60Q 1/46 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights
B60Q 1/52 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating emergencies
H05B 47/16 - Controlling the light source by timing means
H05B 47/165 - Controlling the light source following a pre-assigned programmed sequenceLogic control [LC]
76.
Motor device, wiper device, and motor control method
A motor device includes a motor having three-phase windings; a rotation speed detector detecting a rotation speed of the motor; a drive signal generator controlling a duty ratio not to exceed a duty ratio upper limit value, and performing control for an energization angle of each phase and performing advance angle control shifting the phase from a reference position to generate a drive signal corresponding to the duty ratio; and an inverter supplying alternating current to the windings based on the drive signal. The drive signal generator includes an advance angle/energization angle controller changing the energization angle to 120 degrees or less while performing advance angle control when the duty ratio is equal to or greater than the duty ratio upper limit value and the rotation speed is equal to or less than a predetermined threshold value in a state where the energization angle is greater than 120 degrees.
In a motor device, since a first conductive plate and a second conductive plate are provided to cover a housing, it is possible to prevent electrical noise from being radiated to the outside of the housing, and thus it is possible to take more sufficient countermeasures against electrical noise. Therefore, it is possible to further suppress adverse effects on in-vehicle equipment such as a car audio. In addition, since the first conductive plate and the second conductive plate are respectively electrically connected and collectively fixed by the first fixing member and the second fixing member, the assemblability of the sunroof motor can also be improved.
E05F 15/643 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
78.
ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING SAME
The present invention sufficiently increases roundness in a rotating member that has convexities that are used to obtain a trigger signal. A first regional section AR1 of a cylindrical wall 33 is provided with a total of 16 trigger protrusions 33a that protrude radially outward of the cylindrical wall 33 and are used to obtain a trigger signal indicating a rotational state of a crankshaft; and a second regional section AR2 of the cylindrical wall 33 is provided with a total of two corrective recesses 33c that are provided radially inward of the cylindrical wall 33 and are recessed radially outward of the cylindrical wall 33. Due to the provision of the corrective recesses 33c, the cylindrical wall 33 is corrected so as to approach a perfect circle, consequently making it possible to sufficiently increase the roundness of a rotor body 31 that has the trigger protrusions 33a used to obtain the trigger signal.
H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
In a motor device, since the bearing support member mounted to the housing and supporting, from the axial direction, the another axial side of the ball bearing (outer race) includes the annular support part (annular flat surface) which supports, from the axial direction, the entire circumference of the another axial side of the ball bearing (outer race), tilting of the ball bearing with respect to the housing can be suppressed in the case where a lateral force acts on the rotating shaft. Therefore, it is possible to improve the fixing strength of the ball bearing to the housing, and thus suppress rattling of the speed reduction mechanism.
H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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
The motor includes a shaft fixed to a front surface side of a motor bracket; a rotor rotatably supported on the shaft; a stator wound with coils for generating a magnetic field to rotate the rotor; a substrate, a front surface of which mounted with a driver circuit for controlling magnetic field generation by the coils; a conductive driver case forming an accommodation space accommodating the substrate between itself and the motor bracket; a terminal disposed on a front surface side of the substrate facing the motor bracket and connecting the driver circuit and the coils; a conductive fixing member penetrating the substrate from a rear surface side and fixing the terminal in contact with the substrate; and an insulating driver insulator disposed on a rear surface side of the substrate to surround the fixing member, and protruding to a position closer to the driver case than the fixing member.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 3/46 - Fastening of windings on the stator or rotor structure
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 11/33 - Drive circuits, e.g. power electronics
The invention suppresses hysteresis. A relief valve switching between whether to discharge oil through movement of a valve body includes: a first spacing part, in which the valve body moves; a second space part, connected with the first space part and having a diameter smaller than a diameter of the first space part; an elastic body, connected with the valve body; a seal part, disposed in a circumferential direction of the valve body; and a third space part, formed in the first space part.
F16K 7/00 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
F04C 14/24 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves
A motor and a fan device are provided. The motor includes a motor bracket; a conductive shaft fixed to a front surface side of the motor bracket; a rotor rotatably supported on the shaft; a stator fixed to the front surface side of the motor bracket inside the rotor and wound with a plurality of coils for generating a magnetic field to rotate the rotor; a substrate, a front surface thereof mounted with a driver circuit for controlling magnetic field generation by the coils; and a driver case fixed to a rear surface side of the motor bracket and forming an accommodation space accommodating the substrate between itself and the motor bracket. A positive wiring of the driver circuit is mounted outside a region on the substrate overlapping the shaft when the motor is viewed from an axial direction of the shaft.
A linking structure of a wiper blade 12 includes a wiper arm 10, the wiper blade 12, a hook part 10a provided at the wiper arm 10, and a linking part 13 provided at the wiper blade 12. The hook part 10a has a tip side extension part 10b in which a through hole 10c is formed. The linking part 13 has: a pair of sidewalls 13a, 13b facing each other; a cylindrical part 13c bonded to the pair of sidewalls 13a, 13b and engaged with the hook part 10a; a release lever 13d provided at the cylindrical part 13c; and a bridging part 13g bonded to the pair of sidewalls 13a, 13b. The release lever 13d is flexible, and includes a protrusion part 13f fittable with the through hole 10c. The tip part 13e of the release lever 13d protrudes to the outside of the linking part 13.
A control device of a vehicle, the vehicle includes an engine, a hydraulic clutch disposed on a power transmission path between the engine and driving wheels, a starter motor for use in startup of the engine, an electric oil pump device discharging hydraulic oil generating oil pressure supplied to the clutch, and a power supply device supplying electric power driving each of the starter motor and the electric oil pump device. The control device includes a startup control unit that performs starter startup control of starting discharge of the hydraulic oil by the electric oil pump device after determining that output voltage of the power supply device or input voltage of the electric oil pump device is higher than or equal to a fixed voltage after completion of cranking by the starter motor upon startup of the engine using the starter motor.
The present invention contributes to reduction in cost by improving work efficiency through reduction of burden on workers and by simplifying structures. A fixing clip 50 is provided with: a clip body 60 which comprises a support base 61 for supporting one axial side of a mount rubber 40 and a total of four claws 62 that extend from the support base 61 toward the other axial side of the mount rubber 40 and are passed through the mount rubber 40 and a vehicle panel PN; and a pin member 70 which is inserted into the clip body 60 and that pushes and spreads apart the four claws 62 outward in the radial direction of the clip body 60. The four claws 62 and the pin member 70 are respectively provided with engagement protrusions 62b and an annular recess 71b that form protrusion-recess engagement with each other and that each regulate relative movement of the other in the axial direction.
An insulator, a stator, and an electric motor capable of improving molding accuracy and assemblability are provided. An insulator 26 includes a first insulator 61 and a second insulator 62 to be attached from both axial sides of a stator core. The first insulator 61 has a first core end surface covering portion 65 and a first skirt portion 79. The second insulator 62 has a second core end surface covering portion 265 and a second skirt portion 279. The insulator 26 includes a coil lead-out portion 77 provided integrally with only the first core end surface covering portion 65 for leading out terminal portions of coils from the first insulator 61 to the outside. A length of the longest portion of the second skirt portion 279 in the axial direction is greater than a length of the longest portion of the first skirt portion 79 in the axial direction.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
ELECTRIC OIL PUMP FOR AUTOMOBILE TRANSMISSION CLUTCH ENGAGEMENT, ELECTRIC OIL PUMP CONTROL METHOD FOR AUTOMOBILE TRANSMISSION CLUTCH ENGAGEMENT, VEHICLE, AND VEHICLE ELECTRIC OIL PUMP FOR AUTOMOBILE TRANSMISSION CLUTCH ENGAGEMENT
An electric oil pump for automobile transmission clutch engagement includes: a temperature sensor that measures a temperature of oil supplied to an oil supply destination relating to clutch engagement of an automobile transmission; an oil pump drive motor; a current determination part that determines a current value output to the oil pump drive motor to a predetermined current value determined such that the oil pump drive motor is capable of being driven without stopping in a case where the temperature is equal to or less than a predetermined temperature at which a torque of the oil pump drive motor becomes smaller than a load of the oil pump drive motor; and an oil pump that supplies oil to the oil supply destination by the oil pump drive motor being driven based on the determined current value.
An advance angle correction method of a motor device includes: acquiring first advance angle correction information indicating a correspondence relationship between an advance angle correction amount and a rotation speed difference of a rotor of the motor calculated in advance based on a rotation speed change rate; measuring the rotation speed difference of the rotor; calculating a first advance angle correction amount for each rotation direction of the rotor as a first forward rotation advance angle correction amount and a first reverse rotation advance angle correction amount so that a rotation speed difference of an output shaft becomes smaller based on the first advance angle correction information and the rotation speed difference of the rotor; and storing the calculated first forward rotation advance angle correction amount and the first reverse rotation advance angle correction amount as advance angle correction information for each motor device.
Provided is a motor control device in which, with a position detection signal corresponding to a phase with a first reference Hall edge forming a first Hall stage, which is a minimum counter value, defined as a first reference position detection signal, and with a position detection signal corresponding to a phase with a second reference Hall edge forming a second Hall stage, which is an intermediate value, defined as a second reference position detection signal, for a first detection error with the first reference position detection signal used as a reference and a second detection error with the second reference position detection signal used as a reference, a correction coefficient calculated from one of the first and second detection errors is selected and set based on whether the first and second detection errors include a negative value.
Disclosed is a method for manufacturing a stator core including multiple teeth around which a coil is to be wound, a teeth-connecting part that connects adjacent ones of the teeth, and a first annular part having, on an inner circumferential part thereof, multiple fitting parts to be respectively fitted with the teeth. The manufacturing method includes: (a) a step for punching out, from a sheet material, an inner core (second annular part) in which the teeth and the teeth-connecting part are formed integrally; (b) a step for subjecting the sheet material, prior to the punching of the inner core, to a non-magnetization treatment in a section of the sheet material corresponding to the teeth-connecting part; and (c) a step for fitting the first annular part and the inner core by the fitting parts.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
B21D 28/04 - Centering the workPositioning the tools
A brushless motor includes a rotor, the rotor including magnets and a core member. The magnets are arranged around a rotating shaft and sequentially arrayed with N poles or S poles facing each other in a circumferential direction. The core member includes: an annular portion around the rotating shaft; an outer peripheral core part which supports the magnets on an outer peripheral side of the annular portion; and bridges which extend radially between the annular portion and the outer peripheral core part. Each of the bridges is positioned between the magnets adjacent to each other in the circumferential direction. The bridges include one or more first bridges extending over a first range corresponding to a partial range of the core member along a direction of the rotating shaft.
The present invention reduces operation stop due to the sudden reduction of rotational speed. This motor device comprises: a motor that performs rotational drive; a drive signal generation unit that performs control so that a duty ratio indicating the drive output of the motor does not exceed a duty ratio upper limit value and generates a drive signal according to the duty ratio; an inverter that outputs an output signal for causing the motor to perform rotational drive on the basis of the drive signal; a rotational speed detection unit that detects the rotational speed of the motor; an acceleration detection unit that detects whether the acceleration of the motor is ongoing or not; and an upper limit value setting unit that changes the duty ratio upper limit value to a second upper limit value higher than a preset first upper limit value when the acceleration of the rotation of the motor is ongoing.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
B60S 1/08 - Wipers or the like, e.g. scrapers characterised by the drive electrically driven
93.
MOTOR DEVICE, WIPER DEVICE, AND MOTOR CONTROL METHOD
The present invention reduces the occurrence of over-currents. This motor device comprises: a motor that has three-phase windings and is rotationally driven; a rotation speed detection unit for detecting the rotation speed of the motor; a drive signal generation unit for controlling a duty ratio that indicates the drive output of the motor such that the duty ratio does not exceed a duty ratio upper-limit value, and generating a drive signal for implementing a control of a conduction angle in each of the three phases and an advance angle control in which a phase is shifted away from a reference position, the drive signal corresponding to the duty ratio; and an inverter for allowing conduction of an AC current to the three-phase windings on the basis of the drive signal. The drive signal generation unit has an advance angle/conduction angle control unit for modifying the conduction angle to 120 degrees or less, while implementing the advance angle control, when the duty ratio is equal to or greater than the duty ratio upper limit value and the rotation speed of the motor is equal to or less than a prescribed threshold value in a state in which the conduction angle is greater than 120 degrees.
Provided is a wiper device with which the chattering phenomenon of a wiper blade is suppressed with a simple structure, and which can easily improve the quietness of the wiper device. A wiper blade 30 is provided with a tilt mechanism TM1 that tilts the wiper blade 30 relative to a surface 11a such that the center Ct1 of a U-shaped hook part 23b is disposed more to the front in a wiping direction than the center Ct2 of blade rubber 50. This makes it possible to correctly tilt the blade rubber 50 relative to the surface 11a during each of forward wiping and return wiping of the wiper blade 30. Therefore, it is possible to inhibit the occurrence of defects caused by the blade wiper 50 not being able to correctly tilt relative to the surface 11a (chattering phenomenon, reversing defect, premature wear of rubber, increase in lift during high-speed travel, etc.). The present invention makes it possible to easily improve the quietness of the wiper device 10 without adding new components.
Provided are a winding device and a motor A nozzle that feeds out a coil has: a nozzle hole from which the coil is fed out; an inner-diameter round chamfered part formed on an opening edge of a tip of the nozzle; an outer-diameter round chamfered part formed on the outer peripheral edge of the tip of the nozzle. When the wire diameter of the coil is defined as Φc, the inner diameter of the nozzle hole is defined as Φin, the radius of curvature of the inner-diameter round chamfered part is defined as Rin, and the radius of curvature of the outer-diameter round chamfered part is defined as Rout, they satisfy 1.2Φc≤Φin≤1.4Φc, 0.5Φc≤Rin≤Φc, and 0.25Φc≤Rout≤0.5Φc.
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
The present invention improves the power transmission efficiency between a first gear and a second gear by providing sufficient meshing strength therebetween and can also easily handle a higher speed reduction ratio. When viewed from the axial direction of a pinion gear 31, the center C1 of a pinion main body 31b and the center C2 of a helical tooth 31c are offset from each other, the helical tooth 31c has a larger diameter than the pinion main body 31b, and the pinion main body 31b partially protrudes toward the outer side of an imaginary circle VC that forms the outer shape of the helical tooth 31c. A cross-sectional shape of the pinion gear 31 can be made non-circular with the pinion main body 31b partially protruding toward the outer side of the imaginary circle VC that forms the outer shape of the helical tooth 31c. The present invention can improve the strength of the pinion gear 31 while suppressing an increase in the diameter thereof, and can improve the power transmission efficiency between the pinion gear 31 and a helical gear 32 by improving the strength of both of the gears. Accordingly, a higher speed reduction ratio can also be easily handled.
F16H 1/08 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herring-bone, or like teeth
97.
Control system, disconnection detection method, and non-transitory computer-readable medium
A control system includes: a semiconductor chip, having built therein a processing part, an A/D converter and a pull device circuit; a wiring part, having one end connected to a terminal connected to the A/D converter; and a sensor, connected to the other end of the wiring part and inputting a sensor signal in analog form via the wiring part. The pull device circuit includes a switching element, and has one end connected to ground or a power supply voltage and the other end connected between the A/D converter and the terminal. The processing part includes: a switch control part, controlling the switching element to be in an on or off state; a sensor information generator, generating sensor information based on the sensor signal; and a disconnection detector, detecting disconnection of the wiring part based on output of the A/D converter when the switching element is in the on state.
The present invention provides a wiper device in which a holding member can be assembled in a short time with good precision. Included are: a first pivot shaft and a second pivot shaft 2b that are linked to a wiper arm; a driving unit that rotationally drives the first pivot shaft; a linking portion that is linked to the second pivot shaft and the driving unit, and rotationally drives the two pivot shafts in synchronization; and a first holding member and a second holding member 12b for fixing the pivot shafts to a vehicle body. The second holding member 12b includes a main unit portion 20 that rotatably supports the second pivot shaft 2b, and three supporting portions 21, 22, and 23, which protrude from the main unit portion 20. Among the three supporting portions 21, 22, and 23, a first supporting portion 22 and a third supporting portion 23 include a fixed portion 30 that is fixed by a bolt 105, and an engaging pin 38 that is provided on the fixed portion 30 and engages the vehicle body.
The motor comprises: a stator around which coils are wound and which forms a rotating magnetic field rotating a rotor; and a first motor case housing the stator. The stator has: a core body portion forming an annular magnetic path; and a fastening portion projecting outside in the radial direction from the outer circumferential surface of the core body portion. The fastening portion has an attachment hole which is formed in a penetrating manner along the rotating axis line direction of the rotor and into which a fastening screw for fixing the stator to the first motor case is inserted. The first motor case has: first to third core receiving portions receiving an end portion of the core body portion in the rotating axis line direction; and first and second fastener receiving portions receiving an end portion of the fastening portion in the rotating axis line direction.
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
In a wiper device for vehicles, overrun at inversion positions is suppressed while a wind load and a high load are dealt with. A wiper device includes: a wiper blade; a wiper arm to which the wiper blade is attached; and a motor for driving the wiper arm. A load generated in the motor when the wiper blade moves on a windshield is estimated and calculated based on a motor supply current amount and the like. When an outward load generated in the wiper motor exceeds a predetermined threshold value, a high load correction process is performed based on the outward load. When the outward load is less than or equal to the threshold value, a wind load correction process is performed based on a wind load calculated from a difference between the outward load and the return load.
