Abstract

An electric machine for a motor vehicle includes an electric motor, a metallic motor housing and motor electronics controlling the electric motor. The motor electronics are disposed on the motor housing. The motor electronics have a printed circuit board assembly with a ground guidance bar and with electronic components. A surface of the printed circuit board assembly is covered substantially completely with an electrically non-conductive protective layer except for the ground guidance bar. The ground guidance bar is disposed on the printed circuit board assembly in such a way that, in the event of an electrostatic charge on the motor housing, a discharge arc can form between the motor housing and the ground guidance bar.

IPC Classes  ?

• H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
• H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

A method for operating a fan module, wherein the fan module has a fan wheel and a motor for driving the fan wheel. The motor is operated in a cleaning operating mode to loosen contamination in which the motor is operated at a predetermined cleaning speed. The cleaning speed is greater than the rated speed of the motor. There is also described a fan module by way of which the method is carried out.

IPC Classes  ?

• F04D 27/00 - Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
• F04D 29/70 - Suction gridsStrainersDust separationCleaning

Abstract

The disclosure shows a hub for a cooling fan, comprising a first sand venting structure at a first surface of the hub, a second sand venting structure at a second surface of the hub, and venting holes connecting the first surface and the second surface, wherein the first sand venting structure is configured to transport sand to the venting holes and the second sand venting structure is configured to transport the sand from the venting holes out of the hub.

IPC Classes  ?

• F04D 29/70 - Suction gridsStrainersDust separationCleaning
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps

Abstract

An electric motor has a stator with a cylindrical stator main body with radially inwardly directed stator teeth and with a number of first axial slots formed on the circumferential side in the stator main body, and a motor housing for accommodating the stator. A number of second axial slots are provided on a housing inner wall and are arranged in alignment with the first axial slots. A spring element is provided, which has a spring main body which is inserted in a radially form-fitting manner into one of the first axial slots. A spring arm protrudes out of the spring main body and projects radially on the circumference of the stator main body. The spring arm has a stiffening contour along an arm longitudinal direction, which increases a tangential stiffness of the spring arm.

IPC Classes  ?

• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations

Abstract

The invention relates to a plug connection (14) for an electric motor (12) of a motor vehicle (2), comprising a first plug (44) and a second plug (34). The first plug (44) has a first housing (48) that has a pot-shaped opening (56), within which a male contact (50) is held. The male contact (50) is inserted into a female contact (66) of a second plug (34) that is circumferentially surrounded by a hollow cylindrical portion (62) of a second housing (36) of the second plug (36), which lies in the pot-shaped opening (56). The invention additionally relates to an electric motor (12).

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

The invention relates to a fan module (1) for a motor vehicle, having a fan frame (4) for a fan (2) and/or for a heat exchanger (3), and having a fastening device (9) for holding the fan frame (4) in the motor vehicle, wherein the fan frame (4) has at least one joining element (7), and wherein the fastening device (9) has a retaining element (13) which is or can be mounted on the vehicle, and has a mounting element (14) which is or can be coupled to the frame-side joining element (7) and is or can be detachably connected to the retaining element (13).

IPC Classes  ?

• F01P 3/18 - Arrangement or mounting of liquid-to-air heat-exchangers
• B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• F01P 5/02 - Pumping cooling-airArrangements of cooling-air pumps, e.g. fans or blowers

Abstract

A scroll machine (2), in particular for refrigerant of a vehicle air-conditioning system, comprises: - a first scroll (32) having a first spiral wall (52) projecting in an axial direction (A), - a second scroll (34) having a second spiral wall (54) projecting in the axial direction (A), - a drive (20), - a drive shaft (38), by means of which the drive (20) and the second scroll (34) are coupled in a force-transmitting manner, and - a radius compensation system (36) which is arranged between the drive shaft (38) and the second scroll (34) and which has an eccentric (40) which is coupled to the drive shaft (38) by means of a shaft pin (42) arranged eccentrically with respect to the drive shaft (38) and to the second scroll (34) by means of a bearing journal (40) which is eccentric with respect to the shaft pin (42), wherein the shaft pin (42) is arranged in a first half field (76) described by a connecting line (72) between a drive shaft axis (70) and a bearing axis (66) of the second scroll (34) in relation to an end surface (74) of the drive shaft (38), wherein the radius compensation system (36) has an adjusting weight (44) which is coupled movably to the eccentric (40) by means of a lever arm (80) in an adjusting bearing (82), wherein the lever arm (80) is mounted in a stationary pivot bearing (84) which is arranged in a second half field (78) separated from the first half field (76) by the connecting line (72) on the end surface (74) of the drive shaft (38), wherein the adjusting bearing (82) is arranged in the second half field (78) in relation to the end surface (74) of the drive shaft (38), and wherein a centre of gravity of the adjusting weight (44) is arranged approximately on the connecting line (72).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

The invention relates to a fan module (1) for a motor vehicle, having a fan frame (4) and a fastening device (12) for holding the fan frame (4) in the motor vehicle, wherein the fan frame (4) has at least one joining element (10) with an integrated threaded bushing (13), and the fastening device (12) has a retaining element (12b), which can be mounted on the vehicle, and an elastic decoupling element (12c) and a machine screw (12a) which passes through the retaining element (12b) and the decoupling element (12c) and is screwed releasably into the frame-side threaded bushing (13).

IPC Classes  ?

• F04D 29/64 - MountingAssemblingDisassembling of axial pumps
• B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• F28F 9/00 - CasingsHeader boxesAuxiliary supports for elementsAuxiliary members within casings
• F01P 1/00 - Air cooling

Abstract

The invention relates to an auxiliary unit (6) for a motor vehicle (2), in particular to an electromotive refrigerant compressor, which auxiliary unit has a first connection (12) for a low-voltage on-board electrical system (8). A supply input (36) of a control unit (24) is connected to the first connection (12) by means of a flyback converter (34) which has a primary coil (40) which is in electrical contact with the first connection (12), and a secondary coil (46) which is in electrical contact with the supply input (36). A voltage tester (54) is connected in parallel with the secondary coil (46) and is in contact with a monitoring input (38) of the control unit (24). The invention also relates to a motor vehicle (2).

IPC Classes  ?

• B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
• B60H 1/00 - Heating, cooling or ventilating devices
• B60H 1/32 - Cooling devices

Abstract

A laminated core for a rotor of an electric motor has laminations arranged one above the other in the axial direction. The laminations are formed with a magnet pocket for receiving a rotor magnet, and with a core recess for reducing a laminated core moment of inertia. The core recess is formed radially inwardly from the magnet pocket. At least one of the laminations is formed with a common, contiguous laminate cut-out that forms the magnet pocket and the core recess. The rotor magnet is clampingly fixed by way of a fixing arm of the laminate that projects in the radial direction into the magnet pocket. There is also described an electric motor with a rotor that has such a laminated core.

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

periode0onkritischperiode0onperiode0onkorrkorrkritischampperiode0onkorrkorr).

IPC Classes  ?

• 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 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

Abstract

The invention relates to a cooler fan module (1), in particular of a motor vehicle, having a fan shroud (3) which has a fan wheel recess (5) and having a cooler (2) which is connected to or can be secured to the fan shroud (3), wherein in the region of joint interfaces (4) between the cooler (2) and the fan shroud (3), a cooler-side joint element (9) and a latching element (10) are provided in each case, and wherein the fan shroud (3) has joint contours (11) corresponding to the cooler-side joint elements (9) and latching contours (12) corresponding to the latching elements (10).

IPC Classes  ?

• F01P 3/18 - Arrangement or mounting of liquid-to-air heat-exchangers
• B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• F01P 5/06 - Guiding or ducting air to or from ducted fans
• F01P 11/10 - Guiding or ducting cooling-air to or from liquid-to-air heat-exchangers

Abstract

A stator for an electric motor has a cylindrical stator main body with radially inwardly directed stator teeth and with a number of axial slots over the circumference. Each of a number of spring elements has a spring main body that is or can be radially interlockingly inserted into a corresponding axial slot and also spring arms extending or bent out of the spring body and projecting circumferentially radially beyond the stator main body. The number of spring arms increases as an axial length of the stator main body increases, and/or a ratio between a spring width of the respective spring arm and a material thickness of the spring element or the spring main body lies between 10 and 15, preferably between 11 and 14, or further preferably at 13±0.5.

IPC Classes  ?

• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

Abstract

An electric motor includes a motor carrier with an electronics compartment and an axially raised sealing wall or receiving groove. A stator with a stator main body has stator teeth directed radially outwards. A stator winding is disposed on the stator main body. A rotor circulates around the stator. A pot-like rotor housing with permanent magnets is disposed on an inner-wall side. An electronics compartment lid has a lid base and a lid wall which is oriented axially relative to a motor axis and which, with the sealing wall or receiving groove of the motor carrier, forms at least one adhesive gap for receiving a potting compound sealing the electronics compartment.

IPC Classes  ?

• 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 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Abstract

A heat exchanger system including a controller configured to direct a first power signal to a first cooling fan module to operate a first motor at a first rotational speed to provide a first flow rate to satisfy the first demanded heat rejection rate, direct a second power signal to the second cooling fan module to operate the second motor at a second rotational speed to provide a second flow rate to satisfy the second demanded heat rejection rate while maintaining a rotational speed differential between the first rotational speed and the second rotational speed, such that an acoustic property of at least one of the first heat exchanger assembly and the second heat exchanger assembly is below a predetermined acoustic property threshold.

IPC Classes  ?

• B60H 1/00 - Heating, cooling or ventilating devices

Abstract

An electric motor is particularly suited for a radiator fan. The motor has a motor carrier with an electronics compartment for motor electronics. The electronics compartment has an electronics compartment base and a side wall projecting in the vertical direction relative to the electronics compartment base. An electronics compartment cover closes the electronics compartment. The electronics compartment cover has a channel-like receptacle for a free end of the side wall. The receptacle has an outer wall arranged on the outside of the side wall. A lug extends from the outer wall, in particular from a free end of the outer wall, counter to the vertical direction. The lug has a lug base portion and a snap-in element arranged thereon for a snap-in connection to a snap-in nose of the motor carrier.

IPC Classes  ?

• H02K 5/06 - Cast metal casings
• H02K 5/02 - Casings or enclosures characterised by the material thereof
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

An electric motor includes a motor carrier, an electronics compartment, a stator secured to the motor carrier and having a stator winding, and a rotor surrounding the stator. The stator has a stator main body with an annular main body part and radially outwardly directed stator teeth. A coil or winding insulating part is arranged on the stator main body. The main body part forms a receiving or mounting space in which contact pins are arranged which are/can be contacted with the stator winding and which can be guided into the electronics compartment via sealing elements in through-openings of the motor carrier. The sealing elements are mechanically pretensioned by the stator secured to the motor carrier or by the stator main body and/or by the coil or winding insulating part.

IPC Classes  ?

• 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 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Abstract

An electric motor contains a motor carrier with an electronics compartment for accommodating motor electronics, a stator secured to the motor carrier and has a stator winding, and a rotor circulating the stator. The stator has a stator main body with an annular main body part forming a receiving or mounting space and has radially outwardly directed stator teeth. A coil or winding insulating device is arranged on the stator main body on the side of the stator facing the motor carrier. Contact pins are arranged in the receiving or mounting space which are contacting the stator winding via connection contacts and are guided into the electronics compartment via sealing elements in through-openings of the motor carrier. The coil or winding insulating device has a number of radially inwardly directed lugs which project into the receiving or mounting space and are penetrated by a respective contact pin.

IPC Classes  ?

• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• 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 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

Abstract

An electric motor includes a motor carrier and a stator secured to the motor carrier, as well as a rotor surrounding the stator. A coil or winding insulation is provided at least on the side of the stator facing away from the motor carrier. Contact pins are disposed in a receiving or mounting space of the stator, for contacting the stator winding thereof via connection contacts, and are guided into a carrier-side electronics compartment. The coil or winding insulation has an annular body on which functional elements are formed for holding, positioning and/or centering the contact pins and/or the connection contacts.

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 3/30 - Windings characterised by the insulating material
• 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

Abstract

BnBB) as a current source and is connected in parallel to the energy storage device (2).

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
• B60L 3/04 - Cutting-off the power supply under fault conditions

Abstract

The invention relates to an overcurrent protection circuit (40) for a multiphase rotary current having a number of phase currents (IU, IV; IW), the overcurrent protection circuit having a voltage source (42) for providing a supply voltage (UV) with respect to a reference potential (UB), a reference voltage (URef, URef') as a threshold value for the overcurrent protection, an ammeter (44) for recording the individual phase currents (IU, IV; IW) as measured signals (IMessU, IMessV, IMessW), a voltage peak detector (50) into which the measured signals (IMessU, IMessV, IMessW) of the phase currents (IU, IV, IW) are fed, and which generates a detector signal (DS) that corresponds substantially to the measured signal (IMessU, IMessV, IMessW) having the highest voltage value, and a comparator (62) that is coupled to the supply voltage (UV) and the reference potential (UB) and to which the reference voltage (URef') and the detector signal (DS) are applied, the output signal (A) from said comparator being pulled to the reference potential (UB) when the detector signal (DS) is greater than the reference voltage (URef').

IPC Classes  ?

• G01R 19/04 - Measuring peak values of AC or of pulses
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• H02H 1/00 - Details of emergency protective circuit arrangements
• H02H 7/08 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
• H02H 7/122 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
• H02M 1/32 - Means for protecting converters other than by automatic disconnection

Abstract

The invention relates to a fan module (2) for a motor vehicle. The fan module comprises a frame (10) for a fan (4), and/or for a heat exchanger (8, 6), the frame (10) having an extension (14) extending in the transverse direction (q) of the frame. Furthermore, the fan module (2) comprises a mounting element (16) with a fastening portion (18) for the extension (14) and with a supporting portion (20) for a bearing shell (24) of a holder (26) on the motor vehicle, wherein a hook (22) for joining to the bearing shell (24) is arranged on the supporting portion (20) of the mounting element (16).

IPC Classes  ?

• F01P 3/18 - Arrangement or mounting of liquid-to-air heat-exchangers

Abstract

The invention relates to an electric drive (1) for a motor vehicle, said electric drive comprising an electric motor (2) and a gearbox (4) that is downstream of the electric motor (2). The gearbox (4) in turn has at least one pinion (12). The pinion (12) is axially fixed on a shaft (14) by means of a locknut (20) and a washer (18). The washer (18) has two sub-regions (22, 24) made from different materials.

IPC Classes  ?

• H02K 5/02 - Casings or enclosures characterised by the material thereof
• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Abstract

A stator of an electric motor has a number of stator teeth carrying a coil winding; a circular ring-shaped interconnection element having a number of insertion pockets with contact elements inserted therein, each having at least one insulation displacement contact; and a contact device which is connected to the interconnection element. The contact device has a number of bus bars corresponding to the number of phases. Each bus bar is inserted, or can be inserted, into a contact slot of one of the contact elements in clamping contact. The insertion pockets have an insertion slot which is open on one axial side and has a first slot for guiding the wire portions and a second slot for receiving the respective bus bar.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• H02K 1/14 - Stator cores with salient poles
• H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection

Abstract

The invention relates to an electric motor (10) of a motor vehicle (2), comprising a housing (18) to which an end shield (26) is fastened, a bearing (28) which is retained on the end shield (26) and by means of which a shaft (30) is mounted for rotation about an axis of rotation (16), and a sensor system (48) for determining a position of the shaft (30). The sensor system (48) has two sensor units (70), each of which comprises a contact maker (68), and has a sensor gear mechanism (50). The sensor gear mechanism (50) comprises a drive gear (52) which is fastened to the shaft (30) and engages with a first output gear (60) and a second output gear (62), by means of which one of the contact makers (68) is driven in each case. The engagements of the two output gears (60, 62) with the drive gear (52) are offset with respect to one another parallel to the shaft (30). The invention further relates to an auxiliary unit (8) of a motor vehicle (2).

IPC Classes  ?

• B62D 15/02 - Steering position indicators
• H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
• H02K 11/21 - Devices for sensing speed or position, or actuated thereby
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G01D 5/12 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means

Abstract

The invention relates to a scroll machine (2) for conveying a fluid. The scroll machine (2) comprises a first scroll (36), which has a first base plate (36b) and a first spiral wall (36a) protruding from the first base plate (36b) and forming a first spiral path (36d), and a second scroll (24), which has a second base plate (24b) and a second spiral wall (24a) protruding from the second base plate (24b), the second spiral wall engaging in the first spiral path (36d) of the first scroll (36) and forming a number of conveying chambers (38, 50) with the first spiral wall (36a). In a central region of the first base plate (36b), a discharge opening (42) is formed, through which the conveyed fluid escapes into a high-pressure chamber of the scroll machine (2) during proper operation. The discharge opening (42) is delimited, at least on the entry side, by a control edge (42a), which, during proper compression operation, is first swept by the second spiral wall (24a) and the curvature of which approximates a radially outwardly facing outer contour (24e) of the second spiral wall (24a), and by a trailing edge (42b), the curvature of which approximates, at least in parts, a radially inwardly facing inner contour (36e) of the first spiral wall (36a) and which is closer to an inner spiral end (36f) of the first spiral wall (36a) than the control edge (42a) is.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

An oil pump for a motor vehicle, in particular an electrically operated gear pump, contains a pump housing that is closed relative to an end side by a housing cover, a shaft which extends in a longitudinal direction and to which a pump wheel is secured. The shaft is mounted on a first bearing and on a second bearing on both sides of the pump wheel. A pressure chamber is formed on a pressure side, and a lubricant channel leads from the pressure chamber to the shaft in a region of the first bearing for the lubrication of the two bearings. Between the shaft and the pump wheel secured to the shaft, at least one longitudinal channel also leads along the pump wheel to the second bearing.

IPC Classes  ?

• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups

Abstract

The present invention relates to an end shield for an electric motor, in particular for or in an electric power steering system, having: a bearing portion designed for supporting a motor shaft; and a sealing portion designed for a sealing connection with respect to a motor housing, wherein the sealing portion has a peripheral seal which is oriented axially with respect to the bearing portion and is designed to receive a peripheral seal and to receive an axial edge portion of the motor housing in a manner squeezing the seal. The present invention also relates to an electric motor for an electric power steering system having such an end shield, and to a method for producing same.

IPC Classes  ?

• 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 5/15 - Mounting arrangements for bearing-shields or end plates

Abstract

The invention relates to an electrically driven motor vehicle (2) comprising a battery (4), in particular a battery designed as a traction battery for a drive, a battery cooling circuit (14) for the battery (4), said battery cooling circuit comprising a first heat exchanger (20) and a first cooling medium (18), and a heat exchanger device (22), said heat exchanger device comprising a second heat exchanger (24) and a second cooling medium (28), wherein the first cooling medium (18) can be cooled in the first heat exchanger (20) using the heat exchanger device (22). The invention additionally relates to a method for operating such a motor vehicle (2).

IPC Classes  ?

• B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
• B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
• H01M 10/613 - Cooling or keeping cold
• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• B60K 1/00 - Arrangement or mounting of electrical propulsion units

Abstract

The invention relates to an electric motor (2) which has motor electronics (18). The motor electronics (18) are accommodated in an electronics compartment (20), wherein the pressure in the electronics compartment (20) is less than 300 mbar.

IPC Classes  ?

• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
• H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection

Abstract

The invention relates to a stator (1) for an electric motor, said stator comprising: a stator main body (2) which has radially inwardly directed stator teeth (7) and on which a multiphase stator winding (9) is mounted; an insulating ring (4) mounted on an end face (3) of the stator main body (2); and a connection adapter (5) which can be placed or is placed on the insulating ring (4) and which has a connection housing (15) and phase connection contacts (11) as well as contact elements (10) for connectedly contacting winding portions (12) of the stator winding (9), wherein the connection adapter (5) has, and wherein the insulating ring (4) has, on its periphery, a number of locking pins (16), and the connection adapter (5) has corresponding through-openings (17) through which the locking pins (16) pass in order to be subsequently deformed.

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

The invention relates to a stator (1) for an electric motor, said stator comprising: a stator main body (2) having radially inwardly directed stator teeth (7); a winding wire (9) which is continuously wound around the stator teeth (7) in sequence, forming each time a coil (8) of a stator winding; and an insulating ring (4) which is mounted on an end face (3) of the stator main body (2) and which has holding structures (15) which are provided in the peripheral direction (U) of the stator main body (2) in the region of a number of stator slots (26), in which holding structures the winding wire (9) is positioned.

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 3/28 - Layout of windings or of connections between windings

Abstract

The invention relates to a stator (1) comprising: a stator main body (2) with a multiphase stator winding (9) and an insulating ring (4) arranged on the end face; and a connection adapter (5) for electrically connecting winding sections (12) of the stator winding (9), the connection adapter (5) having preferably axially orientated phase connection contacts (11) and a number of radially orientated contact elements (10), and the insulating ring (4) having a holding structure (15) which is assigned to the associated winding section (12) of the stator winding (9) and at which the winding section (12) is connected to the assigned contact element (10) of the connection adapter (5) so as to produce a welding and/or clamping connection.

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

A stator is provided for an electric motor. The stator includes a stator main body with radially inwardly directed stator teeth with a stator winding disposed thereon, an insulating ring disposed on an end face of the stator main body, and a contact adapter, which can be placed onto the insulating ring and which has contact elements for the connection contacting of winding ends of the stator winding. The contact adapter has a joining opening and the insulating ring has a tab pair which corresponds with the joining opening and which has a centering tab and a parallel spring tab, which, when the contact adapter is joined, is received together with the centering tab into the joining opening of the contact adapter.

IPC Classes  ?

• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto

Abstract

The invention relates to an electric motor (2) for a motor vehicle, having a motor housing (4), an electronics unit (8) arranged on the end face of the motor housing (4), wherein a number of phase connections (42, 70, 121) are routed from the motor housing (4) into the electronics unit (8), a circuit board assembly (34) of the electronics unit (8) as a control unit for the electric motor (2), and a cable harness connection (12) of the electronics unit (8) for a cable harness (10), wherein the cable harness connection (12) is designed to make plugged contact with the cable harness (10).

IPC Classes  ?

• H02K 5/18 - Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

A stator of an electric motor includes a tooth and a coil body. The tooth can be radially divided, from a central axis of the stator, into consecutive portions being a tooth root, a tooth neck and a tooth head. The tangential dimensions of the tooth root and tooth head project beyond those of the tooth neck. The coil body is U-shaped and, after attachment to the tooth, at least partially axially and radially covers the portions. The coil body can be force-lockingly secured to the tooth, between the tooth root and the tooth head, in a radial direction relative to the central axis. An electric motor having the stator is also provided.

IPC Classes  ?

• H02K 1/16 - Stator cores with slots for windings

Abstract

The invention relates to an electric drive (10) of a motor vehicle (2), in particular a steering motor, comprising a housing (22) that has a motor compartment (30) and an electronics compartment (28). An electric motor (46) having a stator (48) and having a rotor (50) fastened to a shaft (38) that is arranged parallel to an axial direction (18) is arranged in the motor compartment (30). Electronics (52) for energizing the electric motor (46) are arranged in the electronics compartment (28). The motor compartment (30) and the electronics compartment (28) are separated by way of an end shield (26) to which there is attached a bearing (36) for mounting the shaft (38). A cover element (58) is arranged between the electronics (52) and the end shield (26) and rests against the inside (32) of the housing (22). A heat sink (56) is attached to the electronics (52) and is supported on the cover element (58). The invention also relates to an auxiliary unit (8) of a motor vehicle (2).

IPC Classes  ?

• 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
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to an end shield assembly (36) of an electric motor (22), said end shield assembly comprising an end shield (38) that has a bearing seat (40) in which a bearing (42) is held. A cover cap (78) is attached to the end shield (38). The invention also relates to an electric motor (22).

IPC Classes  ?

• 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 5/15 - Mounting arrangements for bearing-shields or end plates
• H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
• H02K 11/21 - Devices for sensing speed or position, or actuated thereby
• H02K 15/14 - CasingsEnclosuresSupports
• H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements

Abstract

The invention relates to a drive unit (10) of a motor vehicle (2), in particular of a steering system, said drive unit comprising: a carrier unit (16); and an electric motor (22) which has a stator assembly (20) and an additional assembly (41) that has an end shield (42). The stator assembly (20) is inserted into a receptacle (18) of the carrier unit (16), the end shield (42) being secured to the carrier unit (16) in such a manner that the stator assembly (20) is enclosed by means of the end shield (42). The invention also relates to a method (42) for creating a drive unit (10).

IPC Classes  ?

• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 5/15 - Mounting arrangements for bearing-shields or end plates
• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
• H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
• H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to an electric motor (10) of a motor vehicle (2), comprising a housing (18) to which an end shield (26) is fastened, a bearing (28) which is retained on the end shield (26) and by means of which a shaft (30) is mounted for rotation about an axis of rotation (16), and a sensor system (50) for determining a position of the shaft (30). The sensor system (50) includes two sensor units (58), which are each equipped with a contact maker (56), and a sensor gear mechanism (62) comprising a gear wheel (61) that is fastened to the shaft (30) and meshes with another gear wheel (70) that is fastened to another shaft (63) which is mounted for rotation about another axis of rotation (66). The sensor system (50) is designed in such a way that the two contact makers (56) move when the shaft (30) rotates, the rotational speeds of the contact makers (56) differing from each other, wherein the sensor gear mechanism (62) includes a mechanical backlash compensation element (72). The invention further relates to an auxiliary unit (8) of a motor vehicle (2).

IPC Classes  ?

• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• B62D 15/02 - Steering position indicators
• H02K 11/225 - Detecting coils

Abstract

The invention relates to an electric motor (10) of a motor vehicle (2), comprising a housing (18) to which an end shield (26) is fastened, a bearing (28) which is retained on the end shield (26) and by means of which a shaft (30) is mounted for rotation about an axis of rotation (16), and a sensor system (52) for determining a position of the shaft (30). The sensor system (52) includes two sensor units (58), which are each equipped with a contact maker (56), and a sensor gear mechanism (64) comprising a gear wheel (62) that is fastened to the shaft (30) and meshes with another gear wheel (66). The other gear wheel (66) is mounted, by means of a journal (70) that is secured to the end shield (26) and extends parallel to the axis of rotation (16), on the end shield (26) for rotation about another axis of rotation (74). The sensor system (52) is designed in such a way that the two contact makers (56) move when the shaft (30) rotates, the rotational speeds of the two contact makers (56) differing from each other. The invention also relates to an auxiliary unit (8) of a motor vehicle (2).

IPC Classes  ?

• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• B62D 15/02 - Steering position indicators
• H02K 11/225 - Detecting coils

Abstract

An electric motor, in particular a cooling fan motor of a motor vehicle, has a stator with a stator winding. The winding ends of the stator winding project beyond the stator in the form of phase connections and are oriented in an axial direction in pairs. The motor further has a rotor which is rotatably mounted relative to the stator, a motor support with through-openings for the phase connections, a connection cable with connection contacts for contacting the winding ends, and a number of wire holders, through which the winding ends are guided in pairs and thus in a mutually facing orientation.

IPC Classes  ?

• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Abstract

According to the invention, the oil pump (2), in particular a gerotor pump for a motor vehicle, is formed with - an electric drive unit (24) which has a stator (26), a rotor (28), and a drive shaft (22) which extends in an axial direction (10), - a pump unit (12) for delivering oil, said pump unit being drivable by the drive unit (24), and - a common single-part housing part (36), in which the stator (26) and the pump unit (12) are arranged, wherein the housing part (36) is produced as a molded part by means of a molding process, such as a deep drawing process or a cold extrusion process, or as a sintered part by means of a sintering process. In this manner, a structurally simple design is provided, in particular for low-pressure pumps.

IPC Classes  ?

• F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations

Abstract

A method for operating an electromotive refrigerant compressor having an electric motor, includes operating the electric motor using a supply voltage from a second on-board electrical system. The electric motor is operated in an emergency mode if a fault in a low-voltage supply from a first on-board electrical system and/or a fault in a bus for transmitting a control signal, in particular for a desired rotation speed of the electric motor, to the electromotive refrigerant compressor, are/is detected. An electromotive refrigerant compressor, an air-conditioning installation including such an electromotive refrigerant compressor, a computer program product and a computer-readable medium, are also provided.

IPC Classes  ?

• B60H 1/32 - Cooling devices

Abstract

A cooling fan module may include a fan assembly and a shroud. The fan assembly including a number of fan blades and the shroud including a first sidewall and a first ring. The first sidewall defining an opening and the first ring extending in an axial direction from the first sidewall. The first ring including an inner periphery provided with a number of first serrations, each serration of the number of first serrations extending in a radial direction. The radial direction is substantially orthogonal to the axial direction.

IPC Classes  ?

• F04D 29/16 - Sealings between pressure and suction sides
• F04D 29/52 - CasingsConnections for working fluid for axial pumps
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps

Abstract

The invention relates to a rotor assembly (22) for an electric motor (20), having: a rotor shaft (24) orientated along an axial direction (A); at least two rotor cores (30) arranged coaxially and offset relative to one another along the rotor shaft (24), wherein the rotor cores (30) are each equipped with a number of rotor magnets (32) arranged tangentially distributed on the lateral surfaces of the rotor cores (30); two magnet positioning rings (42) for axial and radial form-fitting mounting of the rotor magnets (32) on the rotor cores (30), which are arranged on the opposite end faces of the respective outermost rotor cores (30); and a magnet fixing sleeve (28) placed on the rotor cores (30) for fixing the rotor magnets (32), wherein the rotor cores (30) are in direct contact with one another, wherein the rotor cores (30) have retaining contours (40) for tangentially retaining the rotor magnets (32), which project radially beyond the outer circumference of the respective rotor core (30), and wherein the retaining contours (40) of a rotor core (30) form an axial stop for the rotor magnets (32) of a neighbouring rotor core (30).

IPC Classes  ?

• H02K 1/278 - Surface mounted magnetsInset magnets
• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
• H02K 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

Abstract

abcabcabcabcc) and the PWM variation signal (SV). The invention furthermore relates to such a device (2).

IPC Classes  ?

• 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
• H02P 6/08 - Arrangements for controlling the speed or torque of a single motor
• B06B 1/04 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with electromagnetism
• B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
• G05D 19/02 - Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means

Abstract

The invention relates to a contact device (10) for a stator (4) of an electric motor (2), comprising an interconnection ring (22) placed or placeable on the end face of a stator core (14), and a plurality of bus bars (28) for interconnecting coil ends (20) of a stator winding (6) with a plurality of phase terminals (8), wherein at least one bus bar (28) has an axially directed contact lug (26), and wherein the contact lug (26) has a crimp contour (29) for contact with a respectively associated coil end (20).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H01R 4/18 - 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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
• H01R 43/04 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
• H01R 4/2495 - Insulation penetration combined with permanent deformation of the contact member, e.g. crimping
• H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

Abstract

The invention relates to a device (2a, 2b) for an electric motor (26a, 26b). It comprises a main body (4a, 4b) having a number of passages (6a), which are continuous in the vertical direction (H), for contact pins (40a) of the electric motor (26a, 26b), wherein ribs (18a) that rise to the side and are to be press-fitted with a receptacle (48a, 48b) on a wall (46a, 46b) of the electric motor (26a, 26b) are arranged on the main body (4a, 4b). The invention furthermore relates to an electric motor (26a, 26b) having such a device (2a, 2b) and to a method for mounting such an electric motor (26a, 26b).

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H01R 13/50 - BasesCases formed as an integral body
• H01R 13/74 - Means for mounting coupling parts to apparatus or structures, e.g. to a wall for mounting coupling parts in openings of a panel

Abstract

The invention relates to a cooling fan module (14) of a motor vehicle (2), the module comprising a cooling fan (22) connected to a fan shroud (20). The cooling fan module (14) comprises an automotive warning sound generator (54) having first electronics (54) by means of which a sound generator (48) is operated. The invention also relates to a motor vehicle (2).

IPC Classes  ?

• B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
• B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• B60K 11/06 - Arrangement in connection with cooling of propulsion units with air cooling
• B62D 25/08 - Front or rear portions
• B60R 19/52 - Radiator or grille guards
• F01P 5/06 - Guiding or ducting air to or from ducted fans

Abstract

A method produces an injection molded part. A plastic material is injected into a cavity for forming the injection molded part. The plastic material in a flow line region of the cavity, where the plastic material from two directions coincides during an injection molding process, is at least partially removed from the cavity via at least two overflow points and, in so doing, is locally swirled or mixed between the overflow points.

IPC Classes  ?

• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• B29C 45/17 - Component parts, details or accessoriesAuxiliary operations
• B29C 45/26 - Moulds
• B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps

Abstract

The invention relates to a contact element (32) for interconnecting and contact-connecting phase windings (12) of a stator (2), having a phase contact (36) comprising a plugging section (34) for form-fitting and/or frictional plug-in fitting on the stator (2), and at least one U-shaped hook (38), moulded in one piece on the phase contact (36), as an interconnection point for a phase winding (12).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto

Abstract

The invention relates to an electric connection box (2), in particular for a motor vehicle, and to a method for producing same. The connection box (2) has a housing (4) which can be closed and sealed off from the surroundings and in which a printed circuit board (10) is arranged that has a plurality of connection terminals (14) which pass through a housing wall (16) such that the connection terminals can be contacted from the outside via a contact plug, wherein the connection terminal (14) is encapsulated by a casting compound which forms a sealing element (26) such that the housing (4) meets the requirements of a specified IP protection class.

IPC Classes  ?

• 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

Abstract

The invention relates to an electric motor (4). The electric motor comprises a stator (20), a connection unit (26) for connecting coils (22) of the stator (20), said connection unit (26) having pin-shaped phase connections (32), an electronic unit (34) for operating the stator (20), and a housing (11) with an electronics compartment (36) for the electronics (34) and a motor compartment (12) for the stator (20) and for the connection unit (26), wherein the electronics compartment (36) and the motor compartment (12) have a common housing intermediate wall (38). Each of the phase connections (32) is contacted in plug-contact fashion by a lead-through conductor (40) which protrudes through the housing intermediate wall (38), using a spring contact element (46). The invention additionally relates to a refrigerant compressor (2) comprising such an electric motor (4).

IPC Classes  ?

• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to a securing element (2, 2') for securing an electric motor (4) during transport. This comprises an in particular annular or arcuate main portion (6, 6'), wherein: a spacer element (8) is located on the main portion (6) as collision protection against a collision of a rotor (20) and a stator (18) of the electric motor (4); the spacer element (8) protrudes in the axial direction (A) with respect to the main portion; or the main portion (6') comprises a recess (14) for a rotor shaft (22) of the electric motor (4); the main portion comprises ribs (16) projecting into the recess for fixing the rotor shaft (22).

IPC Classes  ?

• H02K 15/16 - Centring rotors within the stators

Abstract

The invention relates to an electric motor (4). The electric motor comprises a stator (20), a wiring unit (26) with a number of conductor paths (28) for wiring coils (22) of the stator (20), wherein the wiring unit (26) is arranged over the stator (20) in the axial direction (A), electronics (34) for operating the stator (20), and a housing (11) with an electronics compartment (36) for the electronics (34) and a motor compartment (12) for the stator (20) and for the wiring unit (26). The electronics compartment (36) and the motor compartment (12) have a common housing intermediate wall (38). Feedthrough conductors (40) protrude through the housing intermediate wall (38) in order to contact the electronics (34) with a respective phase connection, which is designed as a spring contact element (32), of the wiring unit (26). Each of the spring contact elements (32) is designed to form a plug contact together with the feedthrough conductor (40), and a lug (48) of the spring contact element (32) is held in a clamping slot (50) of one of the conductor paths (28) in a clamped manner.

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H01R 13/11 - Resilient sockets

Abstract

An electric motor of an ancillary unit of a motor vehicle, in particular an electromechanical brake booster, contains a sensor carrier which is manufactured from a plastic and has a body to which a sensor is mounted. A plurality of contact pins are embedded in press-fit technology in the body, which are guided through in each case a corresponding fastening hole of the sensor. Furthermore, a motor vehicle has such an ancillary unit with the electric motor.

IPC Classes  ?

• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• H02K 5/15 - Mounting arrangements for bearing-shields or end plates

Abstract

A fan shroud for a radiator fan contains a central impeller receptacle for receiving a radiator impeller, which receptacle defines a rotational axis for the radiator impeller which axis is oriented in an axial direction. The axial direction extends from an inflow side to a pressure side of the fan shroud. A shroud ring is provided, wherein a fan plane perpendicular to the axial direction is defined by the impeller receptacle and the shroud ring. A plurality of struts extend from the impeller receptacle to the shroud ring and extend from the inflow side to the pressure side. With a strut base, the struts are fastened to the impeller receptacle, and, with a strut tip, are fastened to the shroud ring. The struts are oriented at a strut angle in relation to the fan plane which angle varies from the strut base to the strut tip.

IPC Classes  ?

• F01P 5/06 - Guiding or ducting air to or from ducted fans

Abstract

An electric motor of an ancillary or auxiliary unit of a motor vehicle, in particular an electromechanical brake booster, includes a stator disposed concentrically to a rotor axis. The stator includes a plurality of electric coils wired for a plurality of phases. A one-piece or integral bus bar electrically contacts each phase and protrudes through a passage opening of a bearing shield. The busbars are at least partially encased or surrounded by a common plastic material overmolding or encapsulation. An ancillary or auxiliary unit of a motor vehicle is also provided.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto

Abstract

An electric motor of an auxiliary unit of a motor vehicle, in particular an electromechanical brake booster, contains a bearing shield and a sensor carrier manufactured from a plastic. The sensor carrier has a body arranged perpendicularly to an axis of rotation, to which a sensor is mounted and to which arms extending at least partly parallel to the axis of rotation are connected on the edge side. The arms are fastened to the bearing shield.

IPC Classes  ?

• H02K 5/15 - Mounting arrangements for bearing-shields or end plates
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements

Abstract

The invention relates to an electric motor (16) of an auxiliary unit (12) of a motor vehicle (2), the electric motor having a stator (18) comprising a plurality of electrical coils (30) that are arranged around a rotor axis (24) and in each case two of which are electrically connected to a respective wire bridge (36). The stator (18) comprises a plurality of mutually separate holding blocks (38) made from a metal and each having a slot (40) that runs in a tangential direction and in which in each case one of the wire bridges (36) is held with a frictional connection. The invention also relates to an auxiliary unit (12) of a motor vehicle (2).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H01R 4/28 - Clamped connectionsSpring connections
• H01R 11/09 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations being identical

Abstract

The invention relates to an electric motor (3), in particular a radiator fan motor of a motor vehicle, having a motor support (1), a stator (2) and an electric plug connection (16), wherein the stator (2) has a stator main body (4) with radially oriented stator teeth (8) and a stator or rotary field winding (5) with winding ends (22), wherein the plug connection (16) is arranged between the stator main body (4) and the motor support (1), and wherein the winding ends (22) are directly connected to connection contacts (17) of the plug connection (16).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

An electric motor of an ancillary unit or an auxiliary assembly of a motor vehicle, in particular an electromechanical brake booster, includes a rotor shaft which is disposed along a rotor axis. The rotor shaft includes a cylindrical main portion, which has a round cross-section perpendicular to the rotor axis, and an assembly portion, which adjoins the main portion and has a barrel-shaped cross-section perpendicular to the rotor axis. The barrel-shaped cross-section has two parallel main edges and two convex edges. A gear wheel is positioned on the assembly portion. The gear wheel has a central assembly opening with a barrel-shaped cross-section perpendicularly to the rotor axis. An ancillary unit or auxiliary assembly of a motor vehicle is also provided.

IPC Classes  ?

• 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

Abstract

A magnetic element for an electric machine is formed of a single-piece magnetic body made of a permanently magnetic material. The magnetic body has two longitudinal sides extending in a longitudinal direction and two transverse sides extending in a cross direction. A number of mutually parallel, slit-shaped first recesses are formed in the magnetic body. The first recesses extend from a first side to a center of the magnetic body. A number of mutually parallel, slit-shaped second recesses are formed in the magnetic body. The second recesses extend from a second side, which is opposite from the first side, to the center of the magnetic body.

IPC Classes  ?

• H02K 1/06 - Details of the magnetic circuit characterised by the shape, form or construction

Abstract

Methods of manufacturing a plurality of components during an additive manufacturing process by means of a powder including particles, which is at least locally melted in order to form the plurality of components. The plurality of components can be formed in a component layer extending along a manufacturing plane, in which a first component lies adjacent to a second component of the component layer at least in a spatial direction along the manufacturing plane. In this connection it is proposed to provide a gap having a gap width between the first component and the second component of the component layer, which is predefined using a particle size distribution of the particles in the powder.

IPC Classes  ?

• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B23K 26/342 - Build-up welding
• B33Y 10/00 - Processes of additive manufacturing

Abstract

The present invention relates to a method, a computing unit, a device and a computer program for actuating an electric drive. The method comprises the following method steps. In one method step, the electric drive is divided into at least a first subsystem to be actuated with a first actuation range and a second subsystem to be actuated with a second actuation range, wherein the first subsystem and second subsystem have a common stator and drive a common rotor of the electric drive. In a further method step, an actuation vector is obtained to actuate the electric drive. In a further method step, a first actuation value is detected in the actuation range of the first subsystem to be actuated and a second actuation value is detected in the second actuation range of the second subsystem to be actuated at the time the voltage vector is obtained. In a further method step, the actuation vector obtained is assigned to the first subsystem to be actuated and the second subsystem to be actuated for actuating the electric drive in a specific ratio, so that the first actuation value does not exceed a maximum actuation range of the first subsystem to be actuated and/or the second actuation value does not exceed a maximum actuation range of the second subsystem to be actuated.

IPC Classes  ?

• H02P 6/10 - Arrangements for controlling torque ripple, e.g. providing reduced torque ripple

Abstract

The invention relates to a fan impeller (3), with a hub pan (8), an outer ring (14) and a number of fan blades (10) which extend to the outer ring (14) and are arranged next to one another in the circumferential direction (U) of the hub pan (8), wherein the fan blades (10) which are integrally formed onto the hub pan (8) and onto the outer ring (14) are arranged on different axial planes (E1, E2).

IPC Classes  ?

• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing

Abstract

An electric fan drive for a motor vehicle has an electric motor with a rotary field winding that includes a number of phase ends, and also has a motor carrier, arranged on an end face of the electric motor, for fastening and mounting on an installation point. A connection cable with a number of phase lines is provided for electrically conductively coupling the phase ends to a power supply. The motor carrier has axial feedthrough openings, through which the phase ends of the electric motor are guided, the phase lines each having a contact element at a line end facing the phase ends. Each contact element electrically conductively connects the corresponding phase end to the corresponding phase line. A connection housing for receiving the line ends, the phase ends and the contact elements is fastened to the motor carrier.

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 29/64 - MountingAssemblingDisassembling of axial pumps

Abstract

A stator of an electric motor includes a stator main body with radially oriented stator teeth, which carry coils of a multi-phase coil winding. A stator cap has at least one receiving contour into which at least one winding section of the stator winding is inserted. At least one contact connection has a deformable contact hook which receives the winding section in the course of a joining process and contacts the winding section captively following a deformation process. An electric motor having the stator is also provided.

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto

Abstract

The invention relates to a component connection (34) for interlockingly retaining a first component (26) in a receptacle (28) of a second component (22), wherein the first component (26) is seated in the receptacle (28), wherein, at a radial distance from an opening edge (36) of the receptacle (28), at least one recess (38) is formed into the material of the second component (22) which surrounds the opening edge (36) such that that material of the second component (22) which is situated radially between the opening edge (36) and the recess (38) is deformed owing to the recess (38), in such a way that the deformed material projects as a lug-like axial stop (40) radially into the opening edge (36) and engages axially interlockingly over the first component (26).

IPC Classes  ?

• H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
• F16C 35/067 - Fixing them in a housing
• H02K 15/14 - CasingsEnclosuresSupports

Abstract

A scroll machine is particularly suited as a scroll compressor for refrigerant in a vehicle air-conditioning system. First and second scrolls are each formed with a base plate and with a spiral wall that projects from the base plate and follows a spiral line. The spiral wall of the second scroll engages in a spiral path formed by the first scroll and the spiral walls form a number of compressor chambers. The spiral walls have respective wall surface profiles in regions on their wall surfaces, with the wall surface profile being superposed on the spiral line. As the facing wall surface profile contacts a respective other spiral wall a contact normal at a point of contact, which contact normal extends obliquely with respect to a corresponding local normal of the corresponding first or second spiral line.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• B60H 1/32 - Cooling devices

Abstract

A rotor of an electric motor, in particular for a power steering system, including a rotor shaft, which is directed in an axial direction, and a number of rotor cores, which are arranged coaxial to each other along the rotor shaft, and an intermediate ring arranged between two rotor cores arranged adjacent to each other in the axial direction, which intermediate ring holds the adjacent rotor cores interlockingly in a crossed orientation relative to each other.

IPC Classes  ?

• H02K 1/278 - Surface mounted magnetsInset magnets
• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
• H02K 1/30 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Abstract

The invention relates to a method for producing an electrical circuit (2) for an electric motor, wherein a printed circuit board (4) with a printed circuit board cutout (16) and an electronic component (6) with an electrical connection (12) for solder connection to the printed circuit board (4) are provided, wherein the cross section of the connection (12) is reshaped to form an engagement contour (18) for the printed circuit board cutout (16), wherein the component (6) is placed on the printed circuit board (4) in such a way that the engagement contour (18) engages at least partially into the printed circuit board cutout (16), and wherein the connection (12) makes contact with and is connected to the printed circuit board (4) by means of a soldering process.

IPC Classes  ?

• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 3/30 - Assembling printed circuits with electric components, e.g. with resistor
• H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

The invention relates to an electric motor (1), having a housing (3) with a partition wall (22) between an electronics compartment (24) and a motor compartment (23) for accommodating a stator (4) with a stator winding (5) and a rotor (12) which is shaft-mounted on a motor shaft (13), wherein the partition wall (22) has a central shaft or bearing opening (26) for the motor shaft (13) and a number of apertures (25) for phase connections (11) for electrical contacting of the stator winding (5) with an electronic system (32), and wherein a cover element (20) spanning the partition wall (22) is arranged in the electronics compartment (24), which cover element has passage openings (31) for the phase connections (11) corresponding to the apertures (25) in the partition wall (22).

IPC Classes  ?

• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to a refrigerant assembly (2) for a motor vehicle, having an electric refrigerant drive (4) and at least one other component (6, 8), wherein the refrigerant drive (4) has a drive housing (18) with at least one refrigerant opening (22, 24), and the component (6, 8) is joined directly to the refrigerant opening (22, 24).

IPC Classes  ?

• F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A cooling fan module may include a fan assembly and a shroud. The fan assembly including a number of fan blades and the shroud including a first sidewall and a first ring. The first sidewall defining an opening and the first ring extending in an axial direction from the first sidewall. The first ring including an inner periphery provided with a number of first serrations, each serration of the number of first serrations extending in a radial direction. The radial direction is substantially orthogonal to the axial direction.

IPC Classes  ?

• F01P 7/10 - Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat-exchangers
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
• F04D 29/38 - Blades

Abstract

The invention relates to a laminated core (2) for the rotor of an electric motor. Said laminated core has laminates (4) arranged one above the other in the axial direction (A), a magnet pocket (6) for receiving a rotor magnet (8), and a core cut-out (10) for reducing the laminated core moment of inertia, wherein the core cut-out (10) is located radially inside with respect to the magnet pocket, and wherein at least one of the laminates (4) has a coherent laminate cut-out (16) for forming the magnet pocket (6) and the core cut-out (10). For clampingly fixing the rotor magnet (8), a fixing arm (22) of said laminate (4) projects in the radial direction (R) into the magnet pocket (6). The invention also relates to an electric motor, the rotor of which has such a laminated core (2).

IPC Classes  ?

• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A cooling system for a vehicle including an air duct having an inlet funnel configured to connect to a vehicle grill, a heat-exchanger seat defining an outlet window, and an upper panel extending from the inlet funnel over top of the outlet window. The upper panel defines an intake. At least one heat exchanger is received on the heat-exchanger seat. A cooling fan assembly is disposed under the at least one heat exchanger and includes a shroud and a fan.

IPC Classes  ?

• B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
• B60K 11/08 - Air inlets for coolingShutters or blinds therefor

Abstract

A cooling system for a vehicle including an air duct having an inlet funnel configured to connect to a vehicle grill, a heat-exchanger seat defining an outlet window, and an upper panel extending from the inlet funnel over top of the outlet window. The upper panel defines an intake. At least one heat exchanger is received on the heat-exchanger seat. A cooling fan assembly is disposed under the at least one heat exchanger and includes a shroud and a fan.

IPC Classes  ?

• F01P 11/10 - Guiding or ducting cooling-air to or from liquid-to-air heat-exchangers
• B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
• B60R 19/52 - Radiator or grille guards
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/54 - Fluid-guiding means, e.g. diffusers

Abstract

The invention relates to a plug assembly (20) for establishing electrical contact between an auxiliary unit (2) of a motor vehicle and a vehicle on-board electrical system, said plug assembly comprising at least two high-voltage contact elements (34) and three low-voltage contact elements (40a, 40b) as well as a contact carrier (22) supporting the high-voltage and low-voltage contact elements, wherein the low-voltage contact elements (40a, 40b) are connected to a ground potential via at least one interference suppression element (48a, 48b, 48c).

IPC Classes  ?

• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/40 - Structural association with grounding devices
• H02K 11/02 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
• H01R 3/00 - Electrically-conductive connections not otherwise provided for

Abstract

A stator winding of a sheet-metal stator for an electric motor. A stator lamination stack of the stator is equipped with an insulating end plate. Stator teeth protruding in the radial direction are wound with a winding wire. After a specified number of stator teeth, the winding wire is guided away from the stator lamination stack and then back to the stator lamination stack, thereby forming an at least U-shaped loop. The loop is then used to contact a motor electronics unit of the electric motor.

IPC Classes  ?

• H02K 15/095 - Forming windings by laying conductors into or around core parts by laying conductors around salient poles
• H02K 3/20 - Windings for salient poles for auxiliary purposes, e.g. damping or commutating

Abstract

A discharge device, for discharging an electrical network or an electrically operated unit, includes a discharge circuit having a discharge resistor and a normally-off first semiconductor switch connected in series with the discharge resistor. A controller controls the first semiconductor switch. The controller is commanded in such a manner that the discharge circuit is deactivated during normal operation of the electrical network or the electrically operated unit and the discharge circuit is activated in the event of commanding failing to occur. An electrically powered unit and a discharge method are also provided.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A stator winding of an annular laminated core for an electric motor. A stator lamination of the annular laminated core is equipped with an insulating end disc, on which a plurality of terminating domes are formed protruding in the axial direction. Stator teeth that project in the radial direction are wound with a winding wire, forming a coil in each case. The winding wire between two coils assigned to the same phase and/or for contacting the or each correspondingly assigned coil with motor electronics is laid on the insulating end disc. In addition to a number of fixing loops each laid around a terminating dome for fixing the winding wire, the winding wire is laid radially outside and also radially inside the terminating domes.

IPC Classes  ?

• H02K 3/28 - Layout of windings or of connections between windings
• H02K 1/14 - Stator cores with salient poles
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

A stator for an electrical refrigerant drive includes a laminated core wound with a stator winding, and a contact adapter mounted on the laminated core for connecting the stator winding to at least one phase connector. The contact adapter has at least one potting pocket and the phase connector is fitted in the potting pocket. A winding portion of the stator winding is guided into the potting pocket and contacted with the phase connector. The potting pocket is filled with a cured potting material. A motor vehicle electrical refrigerant drive having the stator is also provided.

IPC Classes  ?

• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
• H02K 1/16 - Stator cores with slots for windings

Abstract

The invention relates to an electrical circuit (30, 30') for an electric machine (2), comprising a DC link (12) with a high path (12a) and a low path (12b) and with a DC link capacitor (14) interconnected in between, wherein a series circuit composed of a measuring resistor (32) and at least one transistor (34, 34a, 34b) with an integrated freewheeling diode is connected in the low path (12b), wherein a comparator (42) compares a measurement signal (40) recorded by means of the measuring resistor (32) with a predefined reference value (44), wherein the comparator (42) drives a control terminal of the transistor (34, 34a, 34b) depending on the comparison, wherein the transistor (34, 34a, 34b) is switched on by the comparator (42) given a negative comparison result in which the reference value (44) is greater than the measurement signal (40) and wherein the transistor (34, 34a, 34b) is switched off by the comparator (42) given a positive comparison result in which the reference value (44) is lower than the measurement signal (40).

IPC Classes  ?

• 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
• H02H 7/122 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters

Abstract

The invention relates to a brushless electric motor (2) for a cooling fan, having a stator (4) with a number of radial stator teeth (12) with grooves (14) formed therebetween and a multi-phase rotary field winding (16) arranged on the stator teeth (12), and having a rotor (6) with a number of permanent magnetic rotor magnets (22) as magnetic poles, wherein the stator (4) has between 15 and 30 grooves, wherein the rotor (6) has between 14 and 28 pole, and wherein the lowest common multiple of the number of grooves and the number of poles is greater than 60.

IPC Classes  ?

• H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
• H02K 1/2786 - Outer rotors

Abstract

dTestdTestdTestqCompqCompdTestqCompqComp) is fed into the q axis.

IPC Classes  ?

• H02P 21/04 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for very low speeds

Abstract

The invention relates to a brushless electric motor (2) for a cooling fan, having a stator (4) with a plurality of radial stator teeth (12) with grooves (14) formed therebetween and a multiphase rotary field winding (16) arranged on the stator teeth (12), and having a rotor (6) with a plurality of permanent-magnetic rotor magnets (22) as magnetic poles, wherein the stator (4) has a number of grooves between 12 and 24, wherein the rotor (6) has a number of poles between 14 and 28, and wherein the smallest common multiple of the number of grooves and number of poles is greater than 60.

IPC Classes  ?

• 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

Abstract

The invention relates to an electromotive refrigerant compressor (8) of a motor vehicle (2), with a housing (10) which has a motor compartment (16), in which a stator (22) of an electric motor (20) is arranged. The motor compartment (16) is separated by means of a dividing wall (14) from an electronics compartment (18), in which a printed circuit board (34) is arranged, wherein a plated-through hole (36) which makes electrical contact with the stator (22) is routed through the dividing wall (14). The plated-through hole (36) makes electrical contact with the printed circuit board (34) by means of press-in technology.

IPC Classes  ?

• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04B 49/06 - Control using electricity
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to a radiator module (18) of a motor vehicle (2), comprising a radiator (20) that includes two water tanks (4) between which a radiator mesh structure (36) is located. The radiator module (18) has a reinforcing assembly (32) connected to the radiator (20) for absorbing and/or diverting forces during a crash. The invention further relates to a region (14) of a motor vehicle (2).

IPC Classes  ?

• B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling

Abstract

A device for establishing an interlock connection contains a plug assembly and a circuit carrier. The plug assembly has two plug terminals with in each case at least one associated interlock contact. A structural element for mechanical reinforcement of the circuit carrier is arranged on the circuit carrier. The structural element is a pot-shaped housing part, and the structural element has a contact element for electrically contacting the interlock contacts.

IPC Classes  ?

• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
• H01R 13/46 - BasesCases
• H01R 31/08 - Short-circuiting members for bridging contacts in a counterpart
• H01R 13/73 - Means for mounting coupling parts to apparatus or structures, e.g. to a wall

Abstract

A fastening assembly of a circuit-board-mounted component, more particularly a choke coil or interference suppression choke, contains: a component having at least one terminal; and a circuit board having at least one soldering surface. At the soldering surface, the terminal of the component is electrically contacted by solder. A longitudinal slot runs parallel to the circuit board plane and is provided in the region of the soldering surface. In the longitudinal slot a peripheral portion of the terminal of the component lies. The peripheral portion extends in the terminal longitudinal direction.

IPC Classes  ?

• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
• H01F 27/29 - TerminalsTapping arrangements
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

The invention relates to an electric motor (1) comprising a motor carrier (4) and a stator (2) secured to same, as well as a rotor (3) surrounding said stator (2), wherein a coil or winding insulating means (11, 12) is provided at least on the side of the stator (2) facing away from the motor carrier (4), wherein contact pins (16) are arranged in a receiving or mounting space (32) of the stator (2), contacting the stator winding (8) thereof via connection contacts (15) and guided into a carrier-side electronics compartment (2), and wherein the coil or winding insulating means (11) has an annular body (11a) on which functional elements (42, 42a, 42b) are formed for holding, positioning and/or centring the contact pins (16) and/or the connection contacts (15).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• 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

Abstract

The invention relates to an electric fluid pump (1) for a motor vehicle, having an electric motor drive (2) with a stator (6), a rotor (8) and a rotor shaft (10) carrying the rotor (8), furthermore having a pump head (4) with at least one pump impeller (20), which is coupled to the rotor shaft (10) for rotation therewith, a pump housing (4), on which the pump head (4) is mounted, and a drive housing (40), which is manufactured separately from the pump housing (42) and in which the stator (6) is mounted non-rotatably at a drive interface (44). The drive housing (40) and the pump housing (42) are nested one in the other and are connected non-rotatably to each other.

IPC Classes  ?

• F01C 21/00 - Component parts, details, or accessories, not provided for in groups
• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups

Abstract

The invention relates to an electric motor (1), having a motor mount (4) with an electronics compartment (2) and with an axially raised sealing wall (41) or receiving groove (42), having a stator (2) with a stator basic body (7) having stator teeth (10) directed radially outwards and with a stator winding (8) arranged on said stator basic body, having a rotor (3) which revolves around the stator (2) and has a pot-like rotor housing (23) with permanent magnets (24) arranged on the inner-wall side, and having an electronics compartment cover (6) with a cover base (6a) and with a cover wall (6b) which is oriented axially with respect to the motor axis (D) and which, with the sealing wall (41) or receiving groove (42) of the motor mount (4), forms at least one adhesive gap (45a, 45b, 46) for receiving a potting compound (V) sealing the electronics compartment (5).

IPC Classes  ?

• 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 11/33 - Drive circuits, e.g. power electronics
• H02K 1/2786 - Outer rotors

Abstract

The invention relates to an electric motor (1) comprising a motor carrier (4) and an electronics compartment (5), as well as a stator (2) secured to the motor carrier (4) and having a stator winding (8), and a rotor (3) surrounding the stator (2), wherein the stator (2) has a stator main body (7) with an annular main body part (9) and radially outwardly directed stator teeth (10), wherein a coil or winding insulating means (12) is arranged on the stator main body (7), wherein the main body part (9) forms a receiving or mounting space (32) in which contact pins (16) are arranged which are/can be contacted with the stator winding (8) and which can be guided into the electronics compartment (2) via sealing elements (30) in through-openings (31) of the motor carrier (4), and wherein the sealing elements (30) are mechanically pretensioned by means of the stator (2) secured to the motor carrier (4) or by means of the stator main body (7) and/or by means of the coil or winding insulating means (12).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

The invention relates to an electric motor (1) comprising a motor carrier (4) with an electronics compartment (5) for accommodating a motor electronics (18), and a stator (2) secured to the motor carrier (4) and having a stator winding (8), and a rotor (3) circulating the stator (2) about an axis of rotation (D), wherein the stator (2) has a stator main body (7) with an annular main body part (9) forming a receiving or mounting space (32) and has radially outwardly directed stator teeth (10), wherein a coil or winding insulating means (11, 12) is arranged on the stator main body (7) on the side of the stator (2) facing the motor carrier (4), wherein contact pins (16) are arranged in the receiving or mounting space (32) which are contacting the stator winding (8) via connection contacts (15) and are guided into the electronics compartment (2) via sealing elements (30) in through-openings (31) of the motor carrier (4), and wherein the coil or winding insulating means (12) has a number (corresponding to the number of contact pins (16)) of radially inwardly directed lugs (39) which project into the receiving or mounting space (32) and are penetrated by a respective contact pin (16).

IPC Classes  ?

• H02K 3/52 - Fastening salient pole windings or connections thereto
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• 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

Abstract

The invention relates to a method (34) for operating a main drive (6) of an electric vehicle (2), in which a first acceleration value (32) is determined on the basis of a setting (28) of an operating element (14). Based on a deviation of a current acceleration (38) from a predetermined maximum acceleration (50), a second acceleration value (56) is determined, and the minimum of the first acceleration value (32) and the second acceleration value (56) is selected as a control value (62). An Energization of the main drive (6) is adjusted in accordance with the control value (62). Furthermore, the invention relates to a main drive (6) of an electric vehicle (2) and a computer program product (22).

IPC Classes  ?

• B60L 15/10 - 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 automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
• 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
• B62M 6/50 - Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof

Abstract

The invention relates to an electric gear pump, in particular a gerotor pump, for a motor vehicle, which pump is intended for pumping a fluid (F) such as oil, extends in axial direction (12) and comprises a housing (4) which has a cover-side housing part (6) on the end and in which two pump units (16A, 16B) are arranged that follow one another in the axial direction (12) and that are driven by a common drive shaft (22) extending in the axial direction (12) along a shaft axis (24), wherein a partition in the form of a separating disc (34) is arranged between the two pump units (16A, 16B). The invention also relates to a set consisting of at least two such gear pumps, wherein the separating disc (34) is omitted in one of the gear pumps.

IPC Classes  ?

• F04C 2/08 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
• F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A rotor for an electric motor has a rotor body with a cylindrical rotor core and a number of surface magnets, which are distributed on a lateral surface of the rotor core in the form of rotor poles and which have a bread loaf-shaped cross-section with a convex curvature oriented towards the outer circumference. The rotor further has a sleeve-shaped protective cover, which is exposed on the outer circumference of the rotor body. The protective cover has a flange collar at least on an end face. The flange collar is shaped into radially indented regions between the curvatures of tangentially adjacent surface magnets resulting in a form-locking and/or a force locking connection between the radially indented regions and the surface magnets.

IPC Classes  ?

• H02K 1/278 - Surface mounted magnetsInset magnets
• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures