METHOD FOR PRODUCING AN INTERMEDIATE PRODUCT FOR AN ELECTRICAL MACHINE, COMPRISING A STATOR LAMINATED CORE AND A HOUSING PART, CONNECTED THERETO, OF THE HOUSING
A method for producing an intermediate product for an electrical machine includes supplying a mould for a housing part. A stator laminated core is laid inside the mould and the housing part is produced by introducing a molten metal alloy into the mould. The molten metal alloy comes directly into contact with the stator laminated core. The method relates to an electrical machine with such an intermediate product, and a vehicle with such an electrical machine.
Cooling device (15) for cooling semiconductor switching elements (10, 11), comprising a first wall (17) having a first side (18) for carrying the semiconductor switching elements (10, 11) and having a second side (19) being opposite the first side (18), a second wall (20) having a first side (21) that forms a main cooling channel (22) together with the second side (19) of the first wall (17) and having a second side (25) being opposite to the first side (21) of the second wall (20), and a third wall (23) that forms an auxiliary cooling channel (24) together with the second side (25) of the second wall (20), wherein the second wall (20) comprises a connection means (26) that connects the auxiliary cooling channel (24) with the main cooling channel (22) in a fluid-conductive manner.
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
4.
ROTOR FOR AN ELECTRIC MACHINE HAVING A WIDENED FILLING OR VENTING OPENING
A rotor for an electric machine includes a sheet metal package formed from stacked electrical sheets and having magnet pockets arranged therein, a plurality of magnets of which at least one is inserted into each of the magnet pockets, a plurality of clearances which are each delimited by the magnets inserted into one of the magnet pockets and by the sheet metal package, a filling opening which is arranged on an axial side of the sheet metal package and through which a first of the clearances is exposed, and a venting opening which is arranged on the axial side and through which a second of the clearances is exposed. The outer end of the filling opening and/or the outer end of the venting opening are widened. Also described are an electric machine having the rotor, a vehicle having the machine and a method for producing the rotor.
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 9/02 - Arrangements for cooling or ventilating by ambient air flowing through the machine
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
5.
STATOR HOUSING FOR AN ELECTRICAL MACHINE, ELECTRICAL MACHINE FOR A VEHICLE, AND VEHICLE
Stator housing for an electrical machine having an inlet and outlet for a cooling fluid, and a cooling duct formed between the inlet and the outlet through which the cooling fluid flows in a direction from the inlet to the outlet, is disclosed. The cooling duct has a first and a second heat transfer arrangement, which each extend along the direction of flow and are designed to transfer heat from the cooling fluid to the stator housing. The first heat transfer arrangement is arranged in a first section of the cooling duct and the second is arranged in a second section that is on the inlet side with respect to the first section. The first heat transfer arrangement in the first section creates a larger heat transfer area for the cooling fluid per unit of length based on the direction of flow than the second in the second section.
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
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
7.
Electric device for a converter, converter and arrangement with an electric machine and a converter
An electrical device for a converter has at least one capacitor having a first connection and a second connection, a first busbar and a second busbar is disclosed. A respective busbar has a greater extension along a transverse direction than along a longitudinal direction, and has a greater extension along the longitudinal direction than along a vertical direction. The respective busbar has a first surface and a second surface which are opposite one other with respect to the vertical direction. The device also has a first contact-connection device electrically conductively contact-connected to the first connection and via which the first connection is electrically conductively connected to the first busbar, and a second contact-connection device electrically conductively contact-connected to the second connection via which the second connection is electrically conductively connected to the second busbar. The busbars delimit a connection space in the vertical direction for connecting a semiconductor power unit.
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
Stator for an electrical machine, comprising a stator core with stator slots which are formed along an axial direction with respect to a center axis of the stator and are arranged in a manner distributed in a circumferential direction with respect to the center axis, a hairpin winding with a large number of hairpin element arrangements which are arranged in the stator slots and each emerge from the end side of the stator core, and at least one insulation apparatus with a body in which a large number of passage openings which are arranged in a manner distributed in the circumferential direction are formed; wherein a respective hairpin element arrangement passes through one of the passage openings and the insulation apparatus specifies a distance of the hairpin element arrangement from an edge of the stator slot which receives the hairpin element arrangement.
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
9.
INVERTER AND ESTIMATION OF AN INTERNAL TEMPERATURE OF A SEMICONDUCTOR SWITCH
The invention relates to an inverter (110) comprising: a power module (1161-3) having at least one semiconductor switch (Q, Q′), and a control device (120) configured to control the power module (1161-3) and to estimate an internal temperature (TJ) of the at least one semiconductor switch (Q, Q′) by means of a temperature model (122) being a polynomial of order three or more having, as arguments, operating parameters including: a switching frequency (FSW), a temperature (TS) of the power module (1161-3), an AC current (I) outputted by the power module (1161-3), and the DC voltage (Udc).
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 7/537 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
G01K 7/01 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using semiconducting elements having PN junctions
10.
INVERTER DEVICE, DRIVE DEVICE FOR AN ELECTRICALLY DRIVABLE VEHICLE, AND VEHICLE
An inverter device (1), comprising
a first printed circuit board (2) on which a transformer (3) is arranged;
a second printed circuit board (4) which is arranged parallel to the first printed circuit board (2) at a distance from the sides of the transformer (3); and
a cover element (5) which is arranged between the printed circuit boards (2, 4) for the purpose of electromagnetic shielding and has a through opening (6) through which the transformer (3) passes;
wherein the cover element (5) comprises a shielding unit (7) which surrounds the through opening (6) peripherally at least in some places and extends in the direction of the second printed circuit board (4).
A transmission device (2) for an electrically driveable vehicle (38), comprising a transmission element (9), a parking lock (12), by means of which the transmission element (9) can be blocked and which has a parking lock actuator (14), a transmission housing (7), which encloses the transmission element (9) and the parking lock (12), a connection apparatus (15) with a cable arrangement (16) extending in the transmission housing (7) and a plug connector by which a first end of the cable arrangement (16) can be contacted from the exterior of the transmission housing (7), wherein a second end of the cable arrangement (16) is electrically connected to the parking lock actuator (14), and a pressure equalization apparatus, which runs through the plug connector (17) of the connection apparatus (15) and forms a gas-permeable connection between the interior of the parking lock actuator (14) and the exterior of the transmission housing (7).
F16H 57/027 - GearboxesMounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
12.
Transmission device for an electrically driveable vehicle, drive device for an electrically driveable vehicle, and vehicle
Described is a transmission device (1) for an electrically driveable vehicle having a transmission element (2), a parking lock (6), by which the transmission element (2) can be blocked and which has a parking lock actuator (8), and a transmission housing (9), which encloses the transmission element (2) and the parking lock (6). A pressure equalization apparatus (14) is connected to an exterior of the transmission housing (9) in a gas-permeable manner. The pressure equalization apparatus (14) has a lead-through element (16) which passes through a transmission housing opening (15) and a fluid guiding element (17), the first end of which is connected to the interior of the parking lock actuator (8) and the second end of which is connected to the lead-through element (16).
a connection apparatus (10) with a cable arrangement (11) extending in the transmission housing (9) and to the first end of which a plug connector (12) is attached, the plug connector being arranged in a transmission housing opening (14) for contacting the cable arrangement (11) from the exterior of the transmission housing (9) and having contact elements (25) arranged in a plug connector housing (15), wherein a second end of the cable arrangement (11) is connected to the parking lock (6), wherein the plug connector (12) has at least one sealing means (18, 27) for preventing a lubricant from escaping through the transmission housing opening (14).
A stator for an electric machine is disclosed. The stator has a plurality of pins arranged in slots in the stator on concentric circles at different distances from a center point, each concentric circle forming a layer. Each of six pins in different layers are connected to one another in series and form a winding. A first pin of the winding in a first slot in the 6n-4 layer, n being a natural number, a second pin of the winding in a second slot in the 6n-5 layer, a third pin of the winding in the first slot in the 6n-2 layer, a fourth pin of the winding in the second slot in the 6n-3 layer, a fifth pin in the first slot in the 6n layer, and a sixth pin of the winding in the second slot in the 6n-1 layer.
A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n−1 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n−3 layer, a fourth pin of the winding is located in the second slot in the 4n−3 layer.
H02K 15/085 - Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
H02K 3/14 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
H02K 3/28 - Layout of windings or of connections between windings
A temperature sensor (116) comprises an electrical circuit (204) including a thermistor (206) intended to be placed next to an object (112); a temperature measurement module (222) configured for determining a measured temperature (T_M) of the thermistor (206) from a resistance of the thermistor (206); and a command module (224) configured for providing a command (C) to the electrical circuit (204) for modifying the electrical circuit (204) in a way that changes a current (IT) flowing in the thermistor (206). The temperature sensor (116) further comprises a thermal loss determination module (226) configured for determining a thermal loss (L) of the thermistor (206) from the thermistor measured temperature (T_M) and the command (C); and a temperature estimation module (228) configured for estimating a temperature (T0_E) of the object (112) from the thermistor measured temperature (T_M) and from the thermal loss (L) of the thermistor (TH).
G01K 1/20 - Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
17.
STATOR WITH PINS AND AN INTERNAL CONNECTION FOR AN ELECTRIC MACHINE
A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n−3 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n−2 layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, a fourth pin of the winding is located in the second slot in the 4n−1 layer.
A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width modulated switching signals (15) with a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to determine the carrier frequency depending on operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) and, as the rotation speed increases and the magnitude of the torque falls, to increase the carrier frequency within an operating region (22) that extends within a rotation speed interval with a lower rotation speed limit (23) differing from zero and with an upper rotation speed limit (24) lying in a power-limiting operating region (21) or field-weakening operating region.
H02M 7/53 - 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 using devices of a triode or transistor type requiring continuous application of a control signal
H02M 7/5395 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
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
A stator for an electric machine having a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots in the stator, and each concentric circle forms a layer, where four pins in different layers are connected to one another in series and form a winding. A first pin of the winding is located in a first slot in the 4n-3 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n-2 layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, and a fourth pin of the winding is located in the second slot in the 4n-3 layer.
H02K 3/28 - Layout of windings or of connections between windings
H02K 3/14 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
H02K 3/52 - Fastening salient pole windings or connections thereto
20.
STATOR FOR AN ELECTRIC MACHINE, METHOD FOR PRODUCING A STATOR FOR AN ELECTRIC MACHINE, ELECTRIC MACHINE, AND VEHICLE
The invention relates to a stator (1) for an electric machine (101), having: - a hollow cylindrical stator laminated core (2) which has - multiple receiving areas (3) arranged along the circumferential direction, - multiple shaped conductors (8a-d) which are arranged in layers (6a-d) of each receiving area (3) and which form a stator winding of the stator (1), wherein each shaped conductor (8a-d) has a cross-sectional surface lying parallel to a plane, comprising a first side (9a) and a second side (9b) parallel to the first side (9a), and a first length (10a) of the first side (9a) and a second length (10b) of the second side (9b) decrease from the radially innermost layer (6a) to the radially outermost layer (6d).
An electric machine (1), comprising: a housing (2), in which a stator (3) and a rotor (4), which is rotatable relative to the stator (3), are accommodated, a cooling device with a cooling channel (5) through which a coolant can flow and which extends from an inlet (7), through the housing (2) and through the rotor (4), to an outlet (6), and a sealing device (18) for sealing off the rotor (4) with respect to an interior space (19) of the housing, wherein the sealing device (18) has a radial shaft sealing ring (11) which surrounds the rotor (4) and which delimits a reservoir (12) for coolant leakage. Additionally described are a drivetrain for a vehicle (14) having such an electric machine (1), and a method for operating the electric machine (1).
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
B60K 1/00 - Arrangement or mounting of electrical propulsion units
22.
STATOR FOR AN ELECTRICAL MACHINE, AND ELECTRICAL MACHINE
A stator (1) for an electrical machine (101), having a stator core (2) with a first end face (3) and a second end face (4), and a stator winding (5) which has a plurality of part windings and forms a number of strands, wherein each part winding – a plurality of shaped conductors (7) which extend through the stator core (2) along an axial direction at predefined angular positions in the circumferential direction – has a first end portion (11a-d), which comprises a free end of the part winding and protrudes from the stator core (2) at the first end face (3), and – a second end portion (12a-d), wherein the first end portion (11a-d) protrudes from the stator core (2) at one of the predefined angular positions and extends in the axial direction at the predefined angular position.
Insulation device (2) for electrically insulating a winding head (7) of a stator winding (4) from connection elements (8a-c), wherein the insulation device (2) has a plate-like body (20) which has - a first side (21), - a second side (22) which is arranged opposite the first side (1), and - at least one recess (23a, 23b) which extends from the first side (21) to the second side (22) and can be guided through the at least one of the connections from the first side (21), wherein an insulation arrangement (24) is provided, which has a first portion (25a, 25b) which extends from the first side (21) of the body (20) in a direction pointing away from the second side (22).
1. Method for producing a stator for a rotating electrical machine, comprising the following method steps: - providing a laminated stator core (8), which has a longitudinal axis (A), an end face (10), a further end face (12), opposite from the end face (10), and a number of circumferentially arranged slots (4), arranged in which are a number of shaped conductors (6), which are provided with an electrically insulating layer (36) and each have a free end (14), - welding two free ends (14), arranged next to one another, of the shaped conductors (6) in pairs, and - spraying an insulating material (34) onto the free ends (14) of the shaped conductors (6) welded in pairs, in order to electrically insulate them together.
H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
H02K 15/10 - Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
25.
ELECTRIC MACHINE WITH A SLEEVE ON THE END SECTION OF A ROTOR
An electric machine (1), comprising: a housing (2), in which a stator (3) and a rotor (4), which is rotatable relative to the stator (3), are accommodated, a cooling device with a cooling channel (5) through which a coolant can flow and which extends from an inlet (7), through the housing (2) and through the rotor (4), to an outlet (6), and a sealing device (21) for sealing off the rotor (4) with respect to an interior space (22) of the housing, wherein an end section of the rotor (4) is surrounded by a sleeve (10), which is surrounded by a radial shaft sealing ring (11) of the sealing device (21). Additionally described are a drivetrain for a vehicle (17), a vehicle (17) of said type, and a method for operating the electric machine (1).
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
B60K 1/00 - Arrangement or mounting of electrical propulsion units
26.
ELECTRIC MACHINE HAVING A PRESSURE EQUALIZATION ELEMENT
The invention relates to an electric machine (1), comprising: - a housing (2), in which a stator (3) and a rotor (4) rotatable relative to the stator (3) are accommodated; - a cooling device having a cooling channel (5), through which a coolant can flow and which extends from an inlet (7) through the housing (2) and through the rotor (4) to an outlet (6); - a sealing device (19) for sealing the rotor (4) with respect to an interior (20) of the housing; and - a venting channel (12), which extends from the sealing device (19) to an opening (13) in the housing (2); wherein a pressure equalization element (14) through which gaseous media can pass is provided at the opening (13) in the housing (2). The invention also relates to a drive train (26) for a vehicle, to a vehicle (15) and to a method for operating an electric machine (1) of this type.
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 5/167 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
27.
ROTOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE
A rotor (1) for an electric machine (16) which has at least two poles and an even number of N≥6 stacked rotor modules (2a-2f), wherein the rotor modules (2a-2f) for each pole have a magnet component (3a-3f; 3a-3h), and magnet components (3a-3f; 3a-3h) which embody the same pole form a corresponding magnet component arrangement (4a, 4b, 4f),
wherein the first to Nth rotor module (2a-2f) are arranged in ascending sequence of their designation in the axial direction,
wherein each magnet component (3a-3f; 3a-3h), belonging to one of the magnet component arrangements (4a), of the first to Nth rotor module (2a-2f) is arranged in each case at a stagger angle α1 . . . αN in the circumferential direction,
wherein the stagger angles αi for 1≤i≤N/2 have a value αi=α0+k·β where 0≤k≤[(N/2)−1], α0 is a fixed angular position in the circumferential direction, β is a fixed offset angle, and all the stagger angles αi are different from one another,
wherein the stagger angles αm for [(N/2)+1]≤m≤N have a value αm=αN−m+1, characterized in that,
the stagger angle αi of at least two of the magnet components (3b) belonging to the magnet component arrangement (4a) is unequal to α0+(i−1)·β,
The invention relates to a power converter (1, 1a, 1b) for an onboard electrical system (101) of a vehicle (100) which can be electrically driven, having a first line (2) for a first potential (P1), - a second line (3) for a second potential (P2) which differs from the first potential (P1), - a third line (4) for a reference potential (P3) which lies between the first potential (P1) and the second potential (P2), and - a filter device (5) which has a first capacitor (6) and a second capacitor (7) and which is designed to establish a first electrically conductive connection between the first line (2) and the third line (4) via the first capacitor (6) and an electrically conductive connection between the second line (3) and the third line (4) via the second capacitor (7) on the basis of control information (13) and sever the electrically conductive connections along at least one current direction.
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
29.
Stator device for an electric machine, and electric machine
Specified is a device (1) in a motor vehicle (2), said device comprising two electric and/or electronic assemblies (3, 3a..3c, 3a', 3a") and a cable connection (4..4", 4a, 4b), wherein the electric and/or electronic assemblies (3, 3a..3c, 3a', 3a") are electrically connected via the allocated terminals (9, 9a, 9b, 10a, 10b) to at least two earth lines (9, 9a, 9b) and at least two current-carrying lines (11, 11a, 11 b) of the cable connection (4..4", 4a, 4b), and wherein the cable connection (4..4", 4a, 4b) has, for each current-carrying line (11, 11a, 11b), at least one earth line (9, 9a, 9b) which extends along the current-carrying line (11, 11a, 11b) and in the same longitudinal direction as the current-carrying line (11, 11a, 11b). Also specified are an electric drive in a motor vehicle (2) having such a device (1), and a motor vehicle (2) having such a drive.
B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
31.
Inverter with switch control and a method of controlling an inverter
A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width-modulated switching signals (15) at a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to ascertain the carrier frequency within at least one operating range (22, 23) depending on a piece of operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) in such a way that the carrier frequency is reduced within the at least one operating range (22, 23) compared to a maximum carrier frequency operating point at which a maximum carrier frequency is specified in the operating range.
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
H02M 7/5395 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
H02P 6/08 - Arrangements for controlling the speed or torque of a single motor
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
32.
METHOD FOR PRODUCING A COOLED STATOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE COMPRISING A COOLING SYSTEM
The invention relates to a method for producing a stator (5) for an electric machine (1, 1a, 1b). According to the method, a stator laminated core (11a... 11c) is provided, comprising tube grooves (16) on the circumference, said grooves having an undercut groove profile which is open radially outwards. After a cooling tube (13) of a cooling system is inserted into the tube groove (16), the cooling tube is pressed together with the stator laminated core (11a... 11c), wherein the cooling tube (13) is plastically deformed by exerting a pressing force onto the cooling tube (13) transversely to the longitudinal axis thereof, said pressing force acting in the region of the opening of the groove profile. The invention additionally relates to a stator (5) which is provided with tube grooves (16) of the aforementioned type and cooling tubes (13) compressed in the grooves, to an electric machine (1, 1a, 1b) comprising such a stator (5), and to a vehicle (23) comprising such an electric machine (1, 1a, 1b).
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
33.
SWITCH DRIVER SYSTEM, SWITCH LEG, INVERTER, ELECTRIC DRIVE AND VEHICLE
The switch driver system comprises two auxiliary switches (q1, q2) connected to each other at a middle point intended to be connected to a control terminal (G) of a main switch (Q), first and second resistances (Ron, Roff) respectively connected to the two auxiliary control terminals (b1, b2), a driver (202) having first and second terminals (Ton, Toff) respectively connected to the first and second resistances (Ron, Roff). The driver is configured to selectively provide, at its first terminal (Ton), a current (Ion) through the first resistance (Ron) to at least one of the auxiliary control terminals (b1, b2) and drain, at its second terminal (Toff), a current from at least one of the auxiliary control terminals (b1, b2) through the second resistance (Roff). The switch driver system further comprises a capacitance (C1) connected to the second terminal (Toff) of the driver (202) so as to provide a current to the second terminal (Toff) when current is drained at the second terminal (Toff), and a third resistance (R2) connected between the first terminal (Ton) of the driver (202) and the capacitance (C1) so that the capacitance (C1) is charged through the third resistance (R2) when current is provided at the first terminal (Ton).
H03K 17/082 - Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
H03K 17/567 - Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
34.
CONNECTION DEVICE FOR A STATOR, STATOR ASSEMBLY FOR AN ELECTRIC MACHINE, METHOD FOR PRODUCING A STATOR ASSEMBLY, AND ELECTRIC MACHINE FOR DRIVING A VEHICLE
The invention relates to a connection device (1) for a stator (101) which comprises a stator winding (103) with a number N of phases, having a first connection unit (1a) and a second connection unit (1b), each of which has N contact sections (2a-f) and a conductor assembly (5). Each of the contact sections (2a-c) of the first connection unit (1a) is designed to contact one of N connection sections (105a-c) of the stator winding (103) in an electrically conductive manner, and the conductor assembly (5) of the first connection unit (1a) connects the contact sections (2a-c) of the first connection unit (1a) in an electrically conductive manner, wherein each of the contact sections (2d-f) of the second connection unit (1b) is designed to contact one of N additional connection sections (105d-f) of the stator winding (103) in an electrically conductive manner, and the conductor assembly (5) of the second connection unit (1b) has N conductor sections (14a-c) which are electrically insulated from one another and each of which is connected to one of the N contact sections (2d-f) of the second connection unit (1b) in an electrically conductive manner. A securing means (17) is provided that is used to convert the first connection unit (1a) and the second connection unit (1b) from a loose position into a secured position, in which the first connection unit (1a) and the second connection unit (1b) are secured to one another, and the conductor assembly (5) of the first connection unit (1a) and the conductor assembly (5) of the second connection unit (1b) are electrically insulated from each other.
The invention concerns a method for impregnating coils (22) of a rotor (1) with an impregnation medium. The rotor (1) comprises a rotor shaft (13), a rotor core (14) mounted on the rotor shaft (13), and the coils (22) arranged in channels in the rotor core (14). The rotor core (14) has a first end (141) and a second end (142) which is opposite to the first end (141). The channels run along the rotor core (14) from the first end (141) to the second end (142). The method comprises positioning the rotor (1) in a vertical position, such that the first end (141) is located above the second end (142); applying, while the rotor (1) is in the vertical position, an impregnation medium to the coils (22) from the first end (141), such that the impregnation medium flows through the channels along the coils (22) from the first end (141) to the second end (142) due to gravity; and hardening the impregnation medium, while applying it to the coils (22), at the second end (142) only, in order to plug the second end (142) by the hardened impregnation medium while allowing to fill up the channels with the impregnation medium.
Disclosed is a stator (1) for an electric machine (51), wherein - the stator (1) includes a distributed stator winding (2) with a number N of phase windings, a number P of pole pairs, and a stator core (3) in which slots (A) are formed, the stator winding (2) being arranged in the slots (A); - the stator core (3) is subdivided into 2∙P∙N winding zones (8a-f) regularly following each other in the circumferential direction and includes a plurality of axial recesses (4a-l); - the recesses (4a-l) form at least one set (5a-c) of recesses (4a-d, 4e-f, 4i-l) which follow each other in the circumferential direction, and at least two recesses (4a-d, 4e-f, 4i-l) of the set (5a-c) are part of one of the winding zones (8a-f); - each pair of recesses (4a-d, 4e-h, 4i-l) that adjoin each other in the circumferential direction and are part of the same winding zone (8a-f) has a first angular distance (11a-c, 15a-c, 20a-c) from each other in the circumferential direction; - each pair of recesses (4a, 4d, 4e, 4h, 4i, 4l) which adjoin each other in the circumferential direction and are part of different winding zones (8a-f) has a second angular distance (11d, 15d, 20d) from each other in the circumferential direction; and - in at least one set (5a-c), the first angular distance (11a-c, 15a-c, 20a-c) and the second angular distance (11d, 15d, 20d) differ from one another such that the set (5a-c) is an irregular set.
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
37.
STATOR FOR AN ELECTRIC MACHINE, ELECTRIC MACHINE FOR DRIVING A VEHICLE, AND VEHICLE
Disclosed is a stator core (3) for an electric machine (51), wherein - the stator (1) includes a stator winding (2) with a number N of phase windings, a number P of pole pairs, and a stator core (3) in which slots (A) are formed, the stator winding (2) being arranged in the slots (A); - the stator core (3) is subdivided into 2∙P∙N winding zones (8a-f) regularly following each other in the circumferential direction and includes a plurality of axial recesses; - the recesses (4a-p) form at least a first set (5a) and a second set (5b) of recesses (4a-d, 4e-f) which follow each other in the circumferential direction, and in each set (5a-d), each pair of recesses (4a-d, 4e-h, 4i-l, 4m-p) that adjoin each other in the circumferential direction and are part of the same winding zone (8a-f) has a first angular distance (11a-c, 15a-c, 19a-c, 24a-c) from each other in the circumferential direction, and each pair of recesses (4a, 4d, 4e, 4h, 4i, 4l, 4m, 4p) that adjoin each other in the circumferential direction and are part of different winding zones (8a-f) has a second angular distance (11d, 15d, 19d, 24d) from each other in the circumferential direction; - each recess (4a-d) of the radially inner first set (5a), in continuation with a recess (4e-h) of the radially outer second set (5b), forms a slot (A) in the stator core (3), and the recess (4e-h) of one of the sets (5b) has a larger extent in the circumferential direction than the recess (4a-d) of the other set (5a); and - in at least one set (5a-d), the first angular distance (11a-c, 15a-c, 19a-c) and the second angular distance (11d, 15d, 19d, 24d) differ from one another such that the set (5a-d) is an irregular set.
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
38.
STATOR CORE, ASSEMBLY COMPRISING A STATOR CORE AND COMPRISING SLOT LINERS, STATOR, ELECTRIC MACHINE AND VEHICLE
The invention relates to a stator core (1) for receiving a stator winding (101) and slot liners (51), wherein each slot liner (51) comprises - a first end (52) extending in an axial direction, - a second end (53) opposite the first end (52) and extending in the axial direction, - a first end portion (54) extending from the first end (52) in the direction of the second end (53), and - a second end portion (55) extending from the second end (53) in the direction of the first end (52), the first end portion (54) overlapping the second end portion on an outer face of the respective slot liner (51); wherein a multiplicity of slots (2) are formed in the stator core (1), which slots are disposed in the circumferential direction, wherein each slot (2) comprises - a first slot wall (3) delimiting the slot (2) in the circumferential direction, - a second slot wall (4) which is opposite the first slot wall (3) and delimits the slot (2) in the circumferential direction, and - a slot base (5) delimiting the slot (2) in the radial direction, and each slot forms - a first receiving chamber (6) designed to receive the first end portion (54), and - a second receiving chamber (7) which immediately adjoins the first receiving chamber (6), is delimited by the second slot wall (4) and the slot base (5), and is designed to receive the stator winding (101) and those portions of the slot liner (51) which are located outside the first end portion (54); wherein the first receiving chamber (6) adjoins the second receiving chamber (7) in the circumferential direction and is delimited by the first slot wall (3).
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
39.
STATOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE
The invention relates to a stator (1) which has N ≥ 3 phases (U, V, W), P≥ 2 pole pairs and a number of holes q = 2 and comprises a stator core (2) with a large number of grooves (3) and a large number of shaped conductors (4), wherein: – the shaped conductors (4), per phase (U, V, W), form a first and a second path (15a, 15b) and are located in 2·P winding regions (30) which are each divided into a first and a second winding sub-region (31a, 31b); – the shaped conductors (4) of a particular path (15a, 15b) are connected by connectors (8, 10), which connect shaped conductors (4) in adjacent winding regions (30) of the same phase (U, V, W) alternately at two axial end faces (8, 10), to form a series connection with a first end shaped conductor (28a, 28b) and a second end shaped conductor (29a, 29b); – the shaped conductors (4) of a particular path (15a, 15b) form a first to third portion (16a-c, 17a-c) of shaped conductors (4) which are successive in each case with respect to the series connection; – the first portion (16a, 17a) comprises the first end shaped conductor (28a, 28b) and the third portion (16c, 17c) comprises the second end shaped conductor (29a, 29b), and – the shaped conductors (4) of the first portion (16a, 17a) and the third portion (16c, 17c) are located in one of the winding sub-regions (31a, 31b), and shaped conductors (4) of the second portion (16b, 17b), which are on the outside at least with respect to the series connection, are located in the other of the winding sub-regions (31a, 31b).
Stator (1) for an electrical machine (101), wherein - the stator (1) has a number N ≥ 3 of winding phases (U, V, W), a number P ≥ 2 of pole pairs and a hole count q = 2, wherein - the stator (1) has a stator core (2) which has two end sides (7, 9) and a large number of slots (3), which are subdivided into first to L-th layers (26a-d), where L ≥ 4, wherein - the shaped conductors (4), for each winding phase (U, V, W), form first to fourth paths (15a-d) and are arranged in 2·P winding zones (30, 30a-g), wherein - each winding zone (30, 30a-g) is subdivided into a first and a second partial winding zone (31a, 31b) and each partial winding zone (31a, 31b) extends over the L layers (26a-d), wherein - the shaped conductors (4) of a respective path (15a-d) are interconnected by connectors (8, 10, 32a-d), which connect shaped conductors (4) in adjacent winding zones (30) of the same winding phase (U, V, W) alternately at the first end side (8) and the second side (10) of the stator core (2), to form a series circuit with a first end shaped conductor (28a-d), which is one of the outer shaped conductors (4) of the path (15a-d) with respect to the series circuit, and with a second end shaped conductor (29a-d), which is the other of the outer shaped conductors (4) of the path (15a-d) with respect to the series circuit, wherein - the end shaped conductors (28a-d) of each path (15a-d) are arranged in different partial winding zones (31a, 31b), so that the path (15a-d) exhibits a change (20) in partial winding zones (31a, 31b) along the series circuit.
H02K 3/28 - Layout of windings or of connections between windings
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
41.
CONNECTION UNIT FOR A STATOR, STATOR ASSEMBLY FOR AN ELECTRIC MACHINE, METHOD FOR PRODUCING A STATOR ASSEMBLY, AND ELECTRIC MACHINE FOR DRIVING A VEHICLE
The invention relates to a connection unit (1a, 1b) for a stator (101) which comprises a stator winding (103) with a number N of phases, having - first to N-th contact sections (2a-c; 2d-f), each of which is designed to contact one of N connection sections (105a-c; 105d-f) of the stator (101) in an electrically conductive manner, forms a receiving chamber (4) for receiving one of the connection sections (105a-c; 105d-f), and has a guide (11), wherein each contact section (2a-c; 2d-f) has a wall (3a) which delimits one face of the receiving chamber (4), and the guide (11) of the contact section has a wall (12a) which adjoins the wall (3a) of the contact section (2a-c; 2d-f) and which is slanted away from the receiving chamber (4) with respect to the wall (3a) of the contact section (2a-c; 2d-f), and - a conductor assembly (5) which is either connected to the first to N-th contact sections (2a-c) in an electrically conductive manner or has N conductor sections (14a-c) which are electrically insulated from one another and each of which is connected to one of the contact sections (2d-f) in an electrically conductive manner.
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H01R 4/00 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
42.
CONNECTION UNIT FOR A STATOR, STATOR FOR AN ELECTRIC MACHINE, STATOR ARRANGEMENT, METHOD FOR PRODUCING A STATOR ARRANGEMENT, AND ELECTRIC MACHINE FOR DRIVING A VEHICLE
The invention relates to a connection unit (1a; 1b) for a stator (101) which comprises a stator winding (103) with a number N of phases, having: a number N of contact sections (2a-c; 2d-f), each of which has a first wall (3a) and a second wall (3b), forms a receiving chamber (4) that is delimited by the first wall (3a) and the second wall (3b) and is designed to receive one of N connection sections (105a-c; 105d-f) of the stator (101), and is designed to electrically contact the connection section (105a-c; 105d-f), wherein the first and second walls (3a, 3b) of the N contact sections (2a-c; 2d-f) are parallel to each other; and a conductor arrangement (5) which either electrically connects the contact sections (2a-c) or comprises N conductor sections (14a-c) which are electrically insulated from one another and are each electrically connected to one of the N contact sections (2d-f).
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
45.
ASSEMBLY HAVING A BUSBAR, INVERTER HAVING SUCH AN ASSEMBLY, AND ELECTRICAL DEVICE
The invention relates to an assembly having a busbar (1) and cable lugs (8) for fastening high-voltage lines (2, 3, 4) of an electric machine, in which: the busbar (1) has electrically conductive receptacles (5, 6, 7) for fastening the high-voltage lines (2, 3, 4), an electrically insulating partition wall (10) being formed between adjacent receptacles (5, 6, 7), the receptacles (5, 6, 7) being designed such that the high-voltage lines (2, 3, 4) can be fastened to the receptacles (5, 6, 7) either in a first position or in a second position rotated by a fixed angle relative to the first position. The invention further relates to an inverter (24) having such an assembly and to an electrical device (22) having such an inverter (24).
n) which are arranged in a V shape and which are positioned symmetrically with respect to a plane of symmetry (C) splitting the sector (B) into two half-sectors (D, D′). An outer contour (E) of the rotor laminated core (6) runs in each sector (B) symmetrically with respect to the plane of symmetry (C) and is formed in one half-sector (D, D′) by at least three different radii with just as many different centre points. The invention also relates to an electric machine (1) having such a rotor (3) and to a vehicle (17) having such an electric machine (1).
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
B60K 1/00 - Arrangement or mounting of electrical propulsion units
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
47.
INVERTER, ELECTRIC DRIVE, VEHICLE AND METHOD FOR CONTROLLING CONTROLLABLE SWITCHES OF AN INVERTER AND CORRESPONDING COMPUTER PROGRAM PRODUCT
jcc) of an element (118, Q) of the inverter (110), to a second switching frequency, the control device (116) being configured to determine the second switching frequency according to an operating point of the motor (108).
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
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
48.
STATOR LAMINATED CORE FOR A STATOR OF AN ELECTRIC MACHINE, STATOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE FOR DRIVING A VEHICLE
The invention relates to a stator laminated core (2) for a stator (1) of an electric machine (101). The stator laminated core (2) is equipped with a plurality of grooves (3) each of which extends one after the other in the circumferential direction and in the axial direction. Each groove (3) has two groove walls (4, 5) lying opposite each other in the circumferential direction and a groove base (6) which connects the groove walls (4, 5) radially outwards, and each groove forms multiple radially successive receiving areas (7a-d) for a respective shaped conductor (8) of a stator winding of the stator (1). The receiving areas (7a-d) form a first arrangement (9a) of at least the radially inner most receiving areas of the receiving areas (7a) and a second arrangement (9b) of at least one other receiving area of the receiving areas (7b-c), wherein the course of the groove walls (4, 5) of each groove (3) between the radial interior of the groove (3) and the groove base (6) forms an offset of the second arrangement (9b) relative to the first arrangement (9a) in the circumferential direction.
STATOR CORE FOR A STATOR OF AN ELECTRIC MACHINE, METHOD FOR PRODUCING SUCH A STATOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE FOR DRIVING A VEHICLE
The invention relates to a stator core (3) for a stator (2) of an electric machine (1), having: - a rotor receiving area (4) which passes through the stator core (3) along an axial direction; and - multiple grooves (9, 9a-d) which - are formed one after the other in the circumferential direction and - pass through the stator core (3) from a first end face (10) to an opposite second end face (11) of the stator core (3) in the axial direction and each of which - has a receiving section (12), in which a stator winding of the stator (2) can be received, and a groove opening (13), which is formed on a radial position between the receiving section (12) and the rotor receiving area (4) and has angular positions that are offset relative to one another along the axial direction with respect to the receiving section (12).
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
50.
Electrical machine with an integrated heat exchanger
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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
Parking lock (1, 19, 24) for a motor vehicle, having a movable locking means for impinging a parking lock wheel (14), disposed in the interior of a transmission housing (2), with a holding force, wherein the movable locking means, by means of a shifting shaft (3) that is rotatable by a drive motor (4) and a cam (7) that is coupled to the shifting shaft (3) is pivotable between a releasing state, in which the parking lock wheel (14) is rotatable, and a blocked state, in which a rotation of the parking lock wheel (14) is blocked, wherein the drive motor (4) is disposed outside the transmission housing (2), the shifting shaft (3) penetrates the transmission housing (2), and the cam (7) is disposed within the transmission housing (2). The invention moreover relates to a transmission having a parking lock (1, 19, 24) of this type, and to a drive installation for electrically drivable motor vehicle.
The inverter (110) comprises input terminals (IT+, IT−), output terminals (OT), controllable switches (Q, Q′) connected to the input terminals (IT+, IT−) and to the output terminals (OT) and a control device (116) configured to control the controllable switches (Q, Q′) so as to convert a DC voltage at the input terminals (IT+, IT−) into an AC voltage at the output terminals (OT) intended to drive an asynchronous electric motor (108) to achieve a target torque (T*), selectively: in a first mode of operation in which the target torque (T*) is determined according to a torque determination method, and in response to a rotor temperature (Tr), in a second mode of operation in which losses in the rotor are decreased relative to the first mode of operation while the target torque (T*) remains determined according to the torque determination method of the first mode of operation.
H02P 1/00 - Arrangements for starting electric motors or dynamo-electric converters
H02P 3/00 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
H02P 5/00 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
H02P 29/66 - Controlling or determining the temperature of the rotor
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
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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
53.
INVERTER, METHOD FOR CONFIGURING AN INVERTER, METHOD FOR CONTROLLING AN INVERTER AND CORRESPONDING COMPUTER PROGRAM
An inverter having input terminals, output terminals, a DC link capacitor connected to the input terminals and configured to smooth a DC voltage present at the input terminals is disclosed. Controllable switches are connected to the DC link capacitor and to the output terminals, and a control device is also provided. The control device controls the controllable switches such that the controllable switches convert the DC voltage into an AC voltage at the output terminals. The controllable switches are controlled according to a first switching control scheme including a first modulation technique and a first switching frequency, and according to a second switching control scheme in response to a temperature of the DC link capacitor, the second switching control scheme causing less losses in the DC link capacitor than the first switching control scheme.
A power module for an inverter is disclosed. The power module has a base plate with a first base plate side and a second, opposite base plate side, controllable electronic switches arranged on the first base plate side, inputs and outputs, which are electrically connected to the electronic switches. The power module is designed to convert an input voltage applied to the inputs to an output voltage applied to the outputs by the electronic switches. The power module also includes a plurality of cooling devices attached to the second base plate side. The cooling devices each have loops arranged one behind the other. The loops of a first group of cooling devices are inclined with respect to the loops of a second group of cooling devices, and/or the loops of each group of cooling devices protrude from the second base plate side to different distances.
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
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
The invention concerns a stator of an electric rotating machine, the stator comprising a housing, a stator core (1), windings, and a distribution ring (2), the stator core (1) having inner and outer (11) longitudinal grooves, the outer longitudinal grooves (11) and the housing forming axial cooling channels configured to channel a coolant; the windings being located within the inner longitudinal grooves and forming at each end of the stator core (1) protruding windings ends, the distribution ring (2) being contiguous to the stator core (1) and comprising recesses (21) extending the outer longitudinal grooves (11), the recesses (21) being configured to guide the coolant from the outer longitudinal grooves (11) towards the protruding windings ends, such that the coolant flows over the protruding windings ends under the effect of gravity and/or due to the pressure of the coolant to cool the protruding windings ends.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
56.
Electrical system with closed compartment for preventing access to an electrical conductor extending in the compartment and methods for allowing and preventing access to an electrical conductor
The electrical system comprises a cover (206) for closing the compartment (204) defined in a housing (202). The electrical system further comprises a removable element (214) configured to be mounted proximate to the housing (202), and a mobile hook (208) attached to one amongst the cover (206) and the housing (202), and configured to take an engaged position with the other amongst the cover (206) and the housing (202) and a disengaged position from the other from the cover (206) and the housing (202), wherein the removable element (214), when mounted proximate to the housing (202), is configured to cooperate with the mobile hook (208) to prevent the cover (206) from being separated from the housing (202), thereby preventing an opening of the compartment (204).
The invention relates to a stator (1) for an electric machine (101), wherein - the stator (1) has a number N of phases (U, V, W), a number P of pole pairs and a hole count q, where N ≥ 3 and P ≥ 2 and q = 3, wherein - the stator (1) comprises a stator core (2) having a plurality of grooves (3) and a plurality of shaped conductors (4) which are arranged in the grooves (3) so as to be radially layered in a first to L-th layer (19a-f), where L = 6, wherein - the shaped conductors (4) of each phase form a first path (15a) and a second path (15b) which are or can be connected in series or in parallel with each other and are arranged in P first winding zones (21a) and P second winding zones (21b), wherein the first and second winding zones (21a, 21b) alternate in the peripheral direction, - the shaped conductors (4) of each path (15a, 15b) are connected by connectors (8, 10) to form a series circuit, said connectors connecting shaped conductors (4) in adjacent winding zones (21) of the same phase (U, V, W) alternately at a first end face (7) and a second end face (9), which is opposite the first end face (7), of the stator core (2), wherein - the first and second layers (19a, 19b) of each winding zone (21) are offset in the peripheral direction by one groove (3) with respect to the third and fourth layers (19c, 19d) of said winding zone (21), wherein - the paths (15a, 15b) each form a combined lap and wave winding.
Rotor for an electrical machine has a rotor core with a plurality of radially outwardly extending rotor legs, a number of exciter windings corresponding to the number of rotor legs, each wound around one of the rotor legs, and a separating device, having a number of separating portions corresponding to the number of rotor legs, which are arranged between a respective pair of adjacent exciter windings and extend axially between two opposing end faces of the rotor, a first annular connecting portion which connects together the separating portions at one of the end faces, and a second annular connecting portion which connects together the separating portions at the other of the end faces. The separating device is formed by a first part and by a second part which are joined together by means of a form-fit and/or force-fit connection, wherein the first part comprises at least the first connecting portion and at least partially the separating portions, and the second part comprises at least the second connecting portion.
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
a) and edged by the latter. Furthermore described are a gear motor (30) comprising such an electrical machine (1), as well as a vehicle (20) comprising such an electrical machine (1).
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 5/15 - Mounting arrangements for bearing-shields or end plates
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
60.
Rotor for an electrical machine, electrical machine for a vehicle, and method for manufacturing a rotor for an electrical machine
Rotor (1) for an electrical machine (101), having: a rotor core (2) with a plurality of radially outwardly extending rotor legs (3); a number of exciter windings (4) corresponding to the number of rotor legs (3), each wound around one of the rotor legs (3); and a pot-like end cap (5) which covers the end faces of the exciter windings (4) and has a passage opening (6) for a shaft (7), wherein the exciter windings (4) and the end cap (5) delimit intermediate spaces (16), in each of which a casting compound (17) is arranged.
B60K 1/00 - Arrangement or mounting of electrical propulsion units
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
A rotor (1) comprising a rotor shaft (13), a rotor core (14) having a core length, windings (12), and two impregnation rings (11), the windings (12) forming protruding windings ends (121), each one of the two impregnation rings (11) comprising an annular portion (111) and a deflector portion (112), the annular portion (111) comprising radial openings (113); and a method for impregnating the rotor (1) comprising starting a rotation of the rotor shaft (13) and impregnating the windings (12) with an impregnating agent through two nozzles respectively located upward each one of the two impregnation rings (11) and oriented towards the radial openings (113), the impregnation agent being guided by the deflector portion (112) towards the protruding windings ends (121) on both sides of the rotor (1) at a same time, in order to impregnate the windings (12) through the core length.
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
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
The invention concerns a cooling ring unit (1) having a hollow circular shape, configured to be integrated in an electric rotating machine comprising a housing and at least one electrical component, said cooling ring unit (1) comprising: at least one inlet (11), a plurality of outlets (12), an annular body (13) having a concave transverse section adapted to form an enclosed substantially annular volume with said housing of said electric rotating machine, said enclosed substantially annular volume forming a cooling circuit connecting said at least one inlet and said plurality of outlets (12), said enclosed substantially annular volume being configured to channel a coolant, said plurality of outlets (12) being formed throughout said annular body (13), and said cooling ring unit (1) being configured to project the coolant through said plurality of outlets (12) in order to cool said at least one electrical component.
A stator (5) for an electrical machine (1) is described, which comprises an annular stator base body (7) with stator grooves (13, 13a, 13b) which are open towards the inside, and stator coils (14a, 14b) of a stator winding (8) which are arranged in the stator grooves (13, 13a, 13b) and assigned to a plurality of phases (L1 . . . L3) of the electrical machine (1). Adjacent stator coils (14a, 14b) of the same phase (L1 . . . L3) are here contra-wound and electrically connected in parallel. Furthermore, an electrical machine (1) with such a rotor (3a . . . 3c), and a drive arrangement and a vehicle (17) with such an electrical machine (1) are described.
An electrical system comprise a power module (107) and a DC link capacitor (110). The power module (107) comprises a first substrate (204) and a second substrate (206) facing said first substrate (204). The first and second substrates (204, 206) define between them an inner space (208) of the power module (107). The power module (107) comprises switches (210) supported by the first (204) or second (206) substrate and extending in the inner space (208) of the power module (107), and inner electrical conductors extending in the inner space (208) of the power module (107) and connecting the switches (210) The inner electrical conductors include two inner DC electrical conductors for receiving a DC voltage (E). The DC link capacitor (110) comprises two capacitor electrical conductors (224, 226) facing each other and extending at least partially outside the inner space (208) of the power module (107) and respectively connected to the inner DC electrical conductors for stabilizing the DC voltage (E). The electrical system comprises an overmolding (232) encapsulating at least partially the substrates (204, 206), the switches (210), the inner electrical conductors and the capacitor electrical conductors (224, 226).
H01L 23/373 - Cooling facilitated by selection of materials for the device
H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
H01L 23/051 - ContainersSeals characterised by the shape the container being a hollow construction and having a conductive base as a mounting as well as a lead for the semiconductor body another lead being formed by a cover plate parallel to the base plate, e.g. sandwich type
The invention relates to a method for producing a skewed stator (103) which has a stator winding composed of shaped conductors (7), comprising the following steps: - providing a stator core (1) which comprises a plurality of grooves (2) which extend from a first end face (3) of the stator core (1) to an opposing second end face (4) of the stator core (1) and have a skew in the circumferential direction, - providing at least one arrangement (10) having at least one shaped conductor (7), which has two straight leg portions (8) oriented parallel to one another and a connecting portion (9) connecting the two leg portions (8), - introducing the arrangement (10), the shaped conductor of which comprises the straight leg portions (8), into the stator core (1), which is located on the first end face (3) and has skewed grooves (2), by means of a relative movement in the axial direction between the stator core (1) and the arrangement (10), so that the leg portions (8) of the at least one shaped conductor (7) are bent as a result of the relative movement in such a way that the shape of the leg portions (8) introduced into the stator core (1) acquires a skew which corresponds to the skew of the grooves (2).
The invention concerns a discharge unit (1), configured to be mounted on a rotor shaft of an electric rotating machine, said discharge unit (1) comprising: at least one axial inlet (11) opening out on an inner circumference (14), a plurality of radial outlets (12) opening out on an outer circumference (15), an intermediary annular chamber (13) connecting said at least one axial inlet (11) and said plurality of radial outlets (12), characterized in that said at least one axial inlet (11) is configured to channel a coolant from a set of rotor shaft outlets, where said coolant has an inlet flow, said plurality of radial outlets (12), where said coolant has an outlet radial flow, is configured to discharge said coolant outwards of said discharge unit (1), said discharge unit (1) being configured so that to discharge said inlet flow, said outlet radial flow being lower than said inlet flow.
The invention relates to a rotor (1) for an electric machine (101), having: - a rotor core (2) in which a plurality of magnet pockets (3a, 3b) and a central through-opening (4) for a shaft (5) are formed, wherein each magnet pocket (3a, 3b) extends from a first end (7) of the rotor core (2) to a second end (8) lying opposite the first end (7) with respect to the rotational axis (6) of the shaft (5) along a helical curve about the rotational axis (6); and - a plurality of permanent magnets (9). Precisely one of the permanent magnets (9) is received in each magnet pocket (3a, 3b), and each permanent magnet (9) has a helical shape which corresponds to the helical curve of the magnet pocket (3a, 3b) receiving the permanent magnet.
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
68.
Housing for an electrical machine, electrical machine, and vehicle with an electrical machine
Housing (1) for an electrical machine, which has at least one connector (2) arranged spaced apart from an outer face (6) of the housing (1), for screw fixing of the housing (1), and at least one rib (5, 8) which connects together a contact face (3) of the connector (2) and the outer face (6) of the housing (1), wherein the outer face (6) of the housing (1) has a recess (9, 10) in an extension of the rib (5, 8). In addition, an associated electrical machine and a vehicle with such an electrical machine are described.
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
69.
ARRANGEMENT FOR AN ELECTRIC MACHINE WITH IMPROVED RESIN FILLING FOR STATOR WINDINGS
An arrangement for an electric machine (1) is disclosed, which comprises a housing (12) with a stopper (13) and a stator (4) arranged in the housing (12). The stator (4) comprises a stator lamination stack (6), stator windings (7) and a stator end disc (8a, 8b) arranged on the axial end of the stator lamination stack (6). In the mounted position, the stator lamination stack (6) on the axial end, on which the stator end disc (8a, 8b) is arranged, is in body contact with the stopper (13) of the housing (12). In detail, the stopper (13) has an annular shape thereby providing a radial gap (b) between the stopper (13) and the stator end disc (8a, 8b). Moreover, the invention relates to a method for manufacturing such an arrangement, an electric machine (1) having such an arrangement and a vehicle (16) having such an electric machine (1).
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
70.
TRANSPORT COVER, ARRANGEMENT WITH A TRANSPORT COVER AND WITH AN ELECTRIC MACHINE AND METHOD FOR OPERATING AN ELECTRIC MACHINE
Transport cover (3), configured to be mounted to an electric machine (2), the electric machine (2) having a housing (4) with an end shield (5), a rotatable shaft (6) extending along a rotation axis (7) through the end shield (5) out of the housing (4) and a bearing (8) supporting the shaft (6) and mounted to the end shield (5), the transport cover (3) comprising a fixation section (11) fixable at the housing (4),
a cover section (12) forming an accommodation space (14) for a stub (6a) of the shaft (6), and
a through-hole (15) allowing to apply a lubricant from the outside of the transport cover (3) to the bearing (8) in a mounted state, in which the fixation section (11) is fixed at the housing (4).
B65D 85/68 - Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
71.
Stator plate packet with weld seams running obliquely to rotational axis
The invention relates to a stator (1) for an electric machine (101), having a number N ≥ 3 of phases (U, V, W), a number P ≥ 2 of pole pairs, a hole count q ≥ 2, a stator core (2) which has a plurality of grooves (3) formed in a circumferential direction, and a plurality of shaped conductors (4, 22a-d, 24a-d) which are arranged in the grooves (3) in a first to fourth layer (18a-d); wherein the shaped conductors (4, 22a-d, 24a-d) form at least two paths (15a, 15b) for each phase (U, V, W) and are arranged in 2 P winding zones (20, 23a-h, 25a-p) which extend over the four layers (18a-d) and at least q+1 immediately adjacent grooves (3); wherein the shaped conductors (4, 22a-d, 24a-d) of each path (15a, 15b) are interconnected in a series circuit, which is realised by connectors (8, 8a, 8b, 10) arranged on a first end face (7) of the stator core (2) and on a second end face (9) of the stator core (2) opposite the first end face (7); wherein each path (15a, 15b) has groups of a first type (16a-d) of shaped conductors (4, 22a-d) connected in series and groups of a second type (17a-d) of shaped conductors (24a-d) connected in series; wherein shaped conductors (22a-d) of the first-type groups (16a-d) are arranged over the winding zones (20, 23a-h) in the circumferential direction alternately, on the one hand in the first and fourth layer (18a, 18d) and, on the other hand, in the second and third layer (18b, 18c), and shaped conductors (4, 24a-d) of the second-type groups (17a-d) are arranged in the other layers (18a-d).
H02K 3/28 - Layout of windings or of connections between windings
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
73.
Monitoring circuit for an interlock system, interlock system, assembly having an interlock system and having a functional unit, and method for operating an interlock system
A monitoring circuit (2) for an interlock system (1), said interlock system comprising a first monitoring line (3), a second monitoring line (4), and at least one line bridge (5), by means of which the monitoring lines (3, 4) are electrically conductively connected in a closed state of the interlock system (1), said monitoring circuit comprising a signal generation device (11) which is configured for generating a monitoring signal for the first monitoring line (3) which alternates between a first monitoring voltage and a second monitoring voltage and which is referenced to a reference potential, and a signal evaluation device (17) by means of which a voltage profile (43, 48 to 51) which is referenced to the reference potential is detectable on the second monitoring line (4), wherein the signal evaluation device (17) is configured for determining a fault on one of the monitoring lines (3, 4) which is caused by a fault voltage referenced to the reference potential, and/or a fault in the monitoring circuit (2) by means of a comparison of the voltage profile (43, 48 to 51) with a predetermined first tolerance interval (46) around the first monitoring voltage, and with a predetermined second tolerance interval (47) around the second monitoring voltage.
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
Electric machine (6), comprising a housing (7, 17), in which a stator and a rotatable rotor are accommodated, wherein an opening of the interior of the electric machine (6) into which cables (9, 18) enter is closed, wherein the opening is closed by a cover (1, 12) which is attachable to the opening and adapted to seal the opening and the cables (9, 18).
The invention relates to a rotor lamination (1) for a rotor (100) of an electrical machine (111), comprising a plurality of through-openings (2a-2f), each of which is provided for forming a magnet pocket (102) of a laminated rotor core (101) and has a first long side (4) and a second long side (5), which is parallel to the first long side (4). In pairs of through-openings (2a-2f) adjacent in the peripheral direction and mutually axially symmetric with respect to a radial axis of symmetry (3), an outer contour (8) of each through-opening (2a-2f) of each pair interconnects ends (6, 7) of the long sides (4, 5) pointing toward the axis of symmetry (3), and said outer contour (8) extends from the first long side (4) in a direction away from both long sides (4, 5) and runs to the second long side (5) over an arcuate segment (12), which is curved toward the axis of symmetry (3), along a direction of extension defined from the first long side (4) to the second long side (5).
A control device for an inverter has a DC voltage input and a power unit with three half-bridges each formed by two power switching elements, the control device being arranged to driving the power switching elements in a normal operating mode for converting a DC voltage applied to the DC voltage input into a polyphase AC current provided at an AC current output. The control device is adapted to evaluate a signal state of a signal indicating a disconnection of a DC voltage source from the DC voltage input and to control the power switching elements in dependence on a result of the evaluation for alternately adopting a first switching pattern causing DC braking and a second switching pattern causing freewheeling.
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
H02P 3/14 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by regenerative braking
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
77.
Control device for an inverter, inverter for a vehicle, vehicle and method of operating an inverter
The invention relates to a control device for an inverter which includes three half-bridges each having a first power switching element connected to a first DC voltage potential and a second power switching element connected to a second DC voltage potential. The control device is arranged for driving the power switching elements for converting a DC voltage present between the DC voltage potentials into a polyphase AC current in a normal operating mode and for transferring the inverter from the normal operating mode into a safe operating mode. The control device is further set up to alternately drive the power switching elements in the safe operating mode for switching single-phase active short circuits and for switching two-phase active short circuits.
H02M 7/538 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
78.
METHOD FOR PRODUCING AN INTERMEDIATE PRODUCT FOR AN ELECTRIC MACHINE, COMPRISING A STATOR LAMINATION PACK AND A HOUSING PART OF THE HOUSING CONNECTED THERETO
The invention relates to a method for producing an intermediate product (2) for an electric machine (1) in which method a casting mould (17) for a housing part (10a..10c) is provided, a stator lamination pack (6) is laid in the casting mould (17) and the housing part (10a..10c) is produced by pouring a molten metal alloy into the casting mould (17), wherein the molten metal alloy comes directly into contact with the stator lamination pack (6). The invention further relates to an electric machine (1) having an intermediate product (2) of this kind, and a vehicle (22) having an electric machine (1) of this kind.
f) of said type, and a vehicle (16) with at least two axles, at least one of which is driven. The driving of the vehicle (16) is performed at least partially or temporarily by the electrical machine (14) of the abovementioned type.
The invention relates to a method for manufacturing a skewed stator (103) which has a stator winding formed from shaped conductors (8), said method comprising the following steps: - providing a stator core (1) having a plurality of axially laminated stator core elements (5, 5a, 5b), the stator core elements (5, 5a, 5b) forming a plurality of grooves (2) of the stator core (1) which extend from a first end face (3) of the stator core (1) to an opposite second end face (4) of the stator core (1) and extend in parallel in the axial direction; - providing a plurality of shaped conductors (8) each having two leg portions (9) which extend parallel to one another and a connecting portion (10) which electrically conductively connects the leg portions (9); - inserting the leg portions (9) into the grooves (2); - rotating stator core elements (5, 5a, 5b) of the stator core (1) in the peripheral direction in such a manner that the stator core elements (5, 5a, 5b) are offset from one another in the peripheral direction and the grooves (2) form a slope in the peripheral direction, the leg portions (9) being bent by the rotation and acquiring a slope corresponding to the slope of the grooves (2); and - fixing the stator core elements (5, 5a, 5b) to one another in such a manner that the slope of the grooves (2) is maintained.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
H02K 15/04 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
81.
Method for determining a correction value which describes an angular difference between an assumed and an actual position of a d-axis, control device and inverter
A method determines a correction value for a control device for an electric machine, which describes an angular difference between a position of a d-axis of the electric machine and an actual position of the d-axis. The correction value is determined in a rotating state of a rotor of the electric machine as a function of a d voltage value describing a d component of a stator voltage specified by the control device in the initial configuration, of a q voltage value describing a q component of the stator voltage specified by the control device in the initial configuration, of a flux value describing a magnetic flux of the rotor, a speed value describing the speed of the rotor in the rotating state, and of a calibration value describing a speed-dependent voltage error of the d component of the stator voltage.
A device for discharging a DC link capacitor includes a discharge device which is connected in parallel with the DC link capacitor and by which, on receipt of a discharge signal requesting discharge, a current flow can be generated which, in the presence of a first signal state of a control signal, has a lower current intensity than in the presence of a second signal state of the control signal; a voltage detection device by which a voltage signal describing a capacitor voltage dropping across the intermediate circuit capacitor can be generated; and a control device with a signal generating unit which is arranged to generate a reference signal whose value at the time of receipt of the discharge signal is dependent on the voltage signal and is reduced relative to the voltage signal, and a comparison unit which is arranged to compare the voltage signal with the reference signal.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 3/155 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
83.
Power converter, vehicle and method of operating a power converter
A power converter having a primary side and a secondary side galvanically isolated therefrom, includes a secondary-side functional unit operable in dependence on auxiliary information generated on the primary side, a primary-side voltage supply device arranged to provide a supply voltage, a power transmission device, which has a switching unit for switching the supply voltage and a transmission unit, which is set up to transmit the switched supply voltage to the secondary side, to convert the supply voltage into an operating voltage for the functional unit, a primary-side modulation device to provide a clock signal to the switching unit and to vary a frequency of the clock signal by the auxiliary information, and a secondary-side demodulation device arranged to generate at least one use signal representing the auxiliary information from a secondary voltage provided by the transmitter unit and to provide a use signal to the functional unit.
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
B60L 50/50 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
84.
STATOR FOR AN ELECTRIC MACHINE, AND ELECTRIC MACHINE
The invention relates to a stator (1) for an electric machine (101). The stator (1) has N ≥ 3 phases (U, V, W), P ≥ 2 pole pairs and a hole count q ≥ 1. The stator (1) comprises a stator core (3) having at least 2NPq grooves (4) and a number 2NPqL of shaped conductors (5), which are disposed in the grooves (4) in such a way that the shaped conductors are radially layered in an even number of L ≥ 4 layers (6a-h). The shaped conductors (5) of each phase form 2q paths (7a-d) and are disposed in 2P winding zones (8), each of which extends radially over L layers (6a-h) and circumferentially over at least q directly adjacent grooves (4). The shaped conductors (5) of each path are interconnected in a series circuit, which is realized by means of connectors (9a-e, 10a-f, 11a-g) disposed at both ends (2a, 2b) of the stator core. Each path comprises L/2 groups (12a-d) of successively series-connected shaped conductors (5). Each group (12a-d) is formed by at least one arrangement (13a, 13b) of at least four shaped conductors (5), which are arranged alternately in two directly adjacent layers (6a-g) and are connected in series by means of first connectors (9a-e), each of which first connectors realizes an offset by qN grooves (4) and an offset by a layer. Each pair of groups (12a-d) adjacent with respect to the series circuit is connected by means of a second connector (10a-f), which realizes an offset by a plurality of grooves (4) and an offset by two layers.
The invention relates to a shaft (1) having a central axis (2) and a fitting section (3) for forming an interlocking shaft/hub connection, wherein the fitting section (3) has radially projecting fitting structures (4) and a chamfer (6) formed on an axial end (5) of the fitting section (3) and at least partially including the fitting structures (4), wherein a distance between the radially inner edges (10, 11) of each fitting structure (4) reduces toward the axial end (5).
B21K 1/30 - Making machine elements wheelsMaking machine elements discs with gear-teeth
F16D 1/072 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
F16D 1/104 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting only by friction
F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
86.
FORMING DEVICE FOR PRODUCING A KNURLED ROTOR SHAFT, METHOD FOR PRODUCING A ROTOR SHAFT FOR AN ELECTRIC MACHINE, ROTOR SHAFT, ROTOR, AND METHOD FOR THE VIBRATIONAL ANALYSIS OF A ROTOR
The invention relates to a forming device (1) for producing a knurled rotor shaft (50) for an electric machine, comprising a base element (2) with a through-opening (3) with a central axis (4) for the rotor shaft (50) and at least three knurling tools (5), each of which is rotatably mounted relative to the base element (2) about a rotational axis (6) running tangentially to the central axis (4) and which have a knurling profile (7) that reaches into the through-opening (3).
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 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
B23P 9/02 - Treating or finishing by applying pressure, e.g. knurling
B21H 7/14 - Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons knurled articles
B21H 7/18 - Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons grooved pinsRolling grooves, e.g. oil grooves, in articles
87.
ELECTRICAL PLUG-IN CONNECTOR, ELECTRIC DRIVE AND VEHICLE
The invention relates to an electrical plug-in connector (1) which comprises a first plug apparatus (21) with at least one first electrical contact, a second plug apparatus (31) with at least one second electrical contact, and a tubular mating plug apparatus (41) which has electrical mating contacts, of which a first group of electrical mating contacts is assigned to the at least one first electrical contact and a second group of electrical mating contacts is assigned to the at least one second electrical contact (33). It is provided that the plug apparatuses (21, 31) are plugged into the mating plug apparatus (41) together, so that the first and the second electrical contacts (23, 33) make electrical contact with the corresponding electrical mating contacts. The plug apparatuses (21, 31) can be plugged into the mating plug apparatus (41) independently of one another. The invention also relates to an electric drive which comprises the electrical plug-in connector (1), and to a vehicle which comprises the electric drive. The mating plug apparatus (41) is in the form of a hollow cylinder with a lateral surface which forms walls of the mating plug apparatus (41), the plug apparatuses (21, 31) bearing against said walls in a positively locking manner in the plugged-in state, and one of the ends of the hollow cylinder is closed and forms a base of the mating plug apparatus (41) and the other end of the hollow cylinder is open for receiving the plug apparatuses (21, 31).
H01R 27/02 - Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more counterparts
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
88.
ROTOR OF A DYNAMO-ELECTRIC ROTARY MACHINE, DYNAMO-ELECTRIC MACHINE HAVING A ROTOR, AND METHOD FOR PRODUCING THE ROTOR
The invention relates to a rotor (11) of a dynamo-electric rotary machine (10), comprising: a rotor core (4) arranged concentrically relative to the rotor axis (6), wherein the rotor core (4) has grooves (3), wherein the grooves (3) are filled with at least one electrically conductive material; a front ring (2) arranged concentrically relative to the rotor axis (6) at the front axial end (8) of the grooves (3), wherein the front ring (2) has at least one electrically conductive material; a rear ring (2) arranged concentrically relative to the rotor axis (6) at the rear axial end (9) of the grooves, wherein the rear ring has at least one electrically conductive material, wherein a surface of the front and/or rear ring (2) facing away from the rotor core (3) at least partially has a bevel in the axial direction from an outer circumference (21) to an inner circumference (22) of the ring with a bevel angle (α); and at least one support element (1), wherein the support element (1) is designed in such a way that the support element (1) is at least partially interlockingly connected to the ring (2). The invention also relates to a dynamo-electric rotary machine (10), as well as a method for producing a rotor.
A circuit arrangement (1), in particular for an electrically driven motor vehicle, has at least one bus bar (5) which is connected electrically to a supplier (2) and which is connected to a first consumer (3) at a first transfer point (6) and to a second consumer (4) at a second transfer point (7). Both the first and the second transfer point (6, 7) are formed as flexible contact points.
H05K 3/32 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
In a control device for discharging a DC link capacitor by means of a discharging device including a load resistor and a switch element connected in series with the load resistor, the control device includes a generator unit, which is configured to generate a pulse width-modulated actuation signal for the switch element with an ascertained duty cycle, and a control unit, which is configured to ascertain the duty cycle in such a way that, in the time average, a desired discharge current flows through the load resistor.
H02P 1/00 - Arrangements for starting electric motors or dynamo-electric converters
H02P 1/28 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of voltage applied to primary circuit of motor
H02P 3/00 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
H02P 7/06 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
H02M 1/32 - Means for protecting converters other than by automatic disconnection
B60L 15/04 - 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 characterised by the form of the current used in the control circuit using DC
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
B60K 6/28 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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
91.
Housing for an inverter having a cooling system for an electric drive
A housing for an inverter includes circuit elements and a cooling system, wherein the housing has four openings and the cooling system includes two channels arranged in the housing, each of which is connected to two different openings, and a condenser is arranged below the housing, wherein two openings from different channels are connected for communication by means of a connecting element arranged outside the housing and the connecting element is of rigid design and extends past the side of the condenser.
A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots in the stator, and each concentric circle forms a layer. In each case, six pins in different layers are serially connected to one another and form a winding. A first pin of the winding is located in a first slot in the 6n-1 layer, wherein n is an integer. A second pin of the winding is located in a second slot in the 6n layer. A third pin of the winding is located in the first slot in the 6n-2 layer. A fourth pin of the winding is located in the second slot in the 6n-3 layer. A fifth pin is located in the first slot in the 6n-5 layer. A sixth pin of the winding is located in the second slot in the 6n-4 layer.
H02K 3/28 - Layout of windings or of connections between windings
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
93.
ELECTRIC DEVICE FOR A CONVERTER, CONVERTER AND ARRANGEMENT WITH AN ELECTRIC MACHINE AND A CONVERTER
The invention relates to an electric device (6) for a converter (3), comprising - a capacitor assembly (7) having at least one capacitor comprising a first terminal and a second terminal; - a first busbar (15) and a second busbar (16), wherein each busbar (15, 16), at least within a section (17), has a greater extent along a transverse direction than along a longitudinal direction, within the section (17) has a greater extent along the longitudinal direction than along a vertical direction and in the section (17) has a first surface (18, 20) and a second surface (19, 21), which are opposite one another in relation to the vertical direction; - a first contacting device (24), which is electrically conductively in contact with the first terminal of the at least one capacitor and is electrically conductively connected to the first busbar (15) via the first terminal of the at least one capacitor; and - a second contacting device (26), which is electrically conductively in contact with the second terminal of the at least one capacitor and is electrically conductively connected to the second busbar (16) via the second terminal of the at least one capacitor; wherein the second surface (19) of the first busbar (15) is opposite and spaced apart in the vertical direction from the first surface (20) of the second busbar (16) in the section (17), so that the busbars (15, 16) delimit in the vertical direction a terminal space (22) for connecting a semiconductor power unit (8).
H01G 4/38 - Multiple capacitors, i.e. structural combinations of fixed capacitors
H01G 4/40 - Structural combinations of fixed capacitors with other electric elements not covered by this subclass, the structure mainly consisting of a capacitor, e.g. RC combinations
H01G 11/10 - Multiple hybrid or EDL capacitors, e.g. arrays or modules
H01G 11/76 - Terminals, e.g. extensions of current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
H01G 11/82 - Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
94.
STATOR FOR AN ELECTRICAL MACHINE, ELECTRICAL MACHINE, AND VEHICLE
Stator (1) for an electrical machine (20), comprising - a stator core (2) with stator slots (3) which are formed along an axial direction with respect to a centre axis (4) of the stator (1) and are arranged in a manner distributed in a circumferential direction with respect to the centre axis (4); - a hairpin winding (5) with a large number of hairpin element arrangements (6) which are arranged in the stator slots (3) and each emerge from the end side of the stator core (2); and at least one insulation apparatus (8) with a body (9) in which a large number of passage openings (10) which are arranged in a manner distributed in the circumferential direction are formed; wherein a respective hairpin element arrangement (6) passes through one of the passage openings (10) and the insulation apparatus (8) specifies a distance of the hairpin element arrangement (6) from an edge (11) of the stator slot (3) which receives the hairpin element arrangement (6).
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
An electrical device includes a housing including a receiving space in which electrical components of the device are arranged, a cover device including a first cover element and a second cover element, and a sensor unit including a magnetic element and a magnetic sensor, which is configured to provide a detection signal when the magnetic element is detected to be absent. The first cover element has a cut-out, and the second cover element is arranged such that the second cover element, in a first position, covers the cut-out and, in a second position, allows access to the cut-out. The cover device is arranged such that the cover device, in a first position, closes the receiving space when the second cover element is in the first position, and in a second position, allows access to the first sub-receiving space and the second sub-receiving space.
The invention relates to a circuit arrangement (1) for protecting a power semiconductor switch (2) driven by a control driver (6) against overvoltages, the power semiconductor switch (2) having a first terminal (3), a second terminal (4) and a control terminal (5), the current flow between the first terminal (3) and the second terminal (4) being able to be controlled by the control terminal (5), comprising a capacitor (8), a measuring resistor (9), a series circuit consisting of capacitor (8) and measuring resistor (9) being connected parallel to the section between the first terminal (3) and the second terminal (4), and a comparison element (10), a first input (11) of the comparison element (10) being connected to a point between the capacitor (8) and the measuring resistor (9) and an output (12) of the comparison element (10) being connected to the control terminal (5) of the power semiconductor switch (2) such that by means of a switch-off overvoltage induced by the switching-off of a current controlled by the power semiconductor switch (2) from an inductor (14; 15), said switch-off overvoltage being applied, in addition to a switch-off voltage, between the first terminal (3) and the second terminal (4) of the power semiconductor switch (2), a voltage which slows down the switching-off of the current controlled by the power semiconductor switch (2) can be generated at the control terminal (5) of the power semiconductor switch (2).
The invention relates to an insulating device (9) for a stator (5) having hairpin windings (6), the insulating device comprising: a first wall, which extends along an axial direction and a peripheral direction with respect to a central axis of the insulating device (9); a plurality of second walls, which each extend along the axial direction and a radial direction with respect to the central axis and protrude from the first wall, pairs of adjacent second walls forming boundaries of respective receiving spaces for a winding overhang (8) of the hairpin windings (6) in the peripheral direction, and the first wall forming a boundary of each receiving space in the radial direction; and one or more detent elements (17) for interlockingly fastening the insulating device (9).
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots, each concentric circle forming a layer, wherein six pins in different layers are serially connected to one another and form a winding. A first pin is located in a first slot in the 6n-1 layer, wherein n is an integer. A second pin is located in a second slot in the 6n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator. A third pin is located in a third slot in the 6n-2 layer. A fourth pin is located in a fourth slot in the 6n-3 layer. A fifth pin is located in the first slot in the 6n-5 layer. A sixth pin is located in the second slot in the 6n-4 layer.
The invention relates to an inverter device (1) comprising: - a first printed circuit board (2) on which a transformer (3) is arranged; - a second printed circuit board (4) which is arranged parallel to the first printed circuit board (2) at a distance from the sides of the transformer (3); and - a cover element (5) which is arranged between the printed circuit boards (2, 4) for electromagnetic shielding purposes and which has a through-opening (6) that passes through the transformer (3), wherein the cover element (5) comprises a shielding unit (7) which at least partly surrounds the through-opening (6) in the circumferential direction and extends in the direction of the second printed circuit board (4).
Cooling device (15) for cooling semiconductor switching elements (10, 11), comprising - a first wall (17) having a first side (18) for carrying the semiconductor switching elements (10, 11) and having a second side (19) being opposite the first side (18), - a second wall (20) having a first side (21) that forms a main cooling channel (22) together with the second side (19) of the first wall (17) and having a second side (25) being opposite to the first side (21) of the second wall (20), and - a third wall (23) that forms an auxiliary cooling channel (24) together with the second side (25) of the second wall (20), wherein the second wall (20) comprises a connection means (26) that connects the auxiliary cooling channel (24) with the main cooling channel (22) in a fluid- conductive manner.
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
patents
