Abstract: A motor assembly has an electric motor with a motor housing and an electronics unit. A first housing shell is formed as a motor carrier and has the motor housing fastened to it. A second housing shell is in the form of a cooling cover. An electronics carrier is arranged in sandwich-like fashion between the motor carrier and the cooling cover. The cooling cover and the motor carrier exhibit greater thermal conductivity than the electronics carrier. The cooling cover and the motor carrier are coupled to one another in heat-conducting fashion at at least one abutment surface.

Abstract: An electric motor has a switching unit with a number of contact wires and an annular frame part. The contact wires are arranged to form an interconnect ring for the coil ends of a stator winding and the ends of the wires being connected by insulation displacement contacts. Each of the contacts have two insulation displacement limbs for connecting at least two of the wire ends, the limbs being spaced apart, thus forming an insulation displacement slot therebetween. The frame part of the switching unit has a number of plug-in pockets for receiving the insulation displacement contacts, the number corresponding to the number of insulation displacement contacts.

Abstract: A drive device for adjusting a covering element of a vehicle, in particular for a window lift apparatus, comprises: an output element for adjusting the covering element; a motor unit, which has an electric motor with a stator, a rotor and an input shaft, which is connected to the rotor and is rotatable about a shaft axis, for driving the output element; and a drive housing, which at least partially encloses the motor unit. The stator is connected via a bearing element to a stationary housing section of the drive housing, wherein the bearing element has a bearing opening in which the input shaft is supported such that it can rotate relative to the stator. In this manner, a drive device is provided which can have favorable operating behavior and provide sufficient torque while having a compact structure.

Abstract: A drive device for adjusting a covering element of a vehicle, in particular for a window lift apparatus, comprises: an output element for adjusting the covering element; a motor unit, which has an electric motor with a stator, a rotor and an input shaft, which is connected to the rotor and is rotatable about a shaft axis, for driving the output element; and a drive housing, which at least partially encloses the motor unit. The stator is connected via a bearing element to a stationary housing section of the drive housing, wherein the bearing element has a bearing opening in which the input shaft is supported such that it can rotate relative to the stator. In this manner, a drive device is provided which can have favorable operating behavior and provide sufficient torque while having a compact structure.

Abstract: An electric motor for an adjusting device of a motor vehicle, particularly of a gearbox actuator, has a stator energized by an electronic mechanism and a rotor for powering the motor. The stator is disposed in a metallic stator housing on which a contact point for connecting an earth cable is integrally shaped.

Abstract: A 3D printing device for producing a three-dimensional component form at least two different materials. The 3D printing device has both a spray-printing unit and an electron-beam and/or laser unit. To produce the three-dimensional component, the spray-printing unit is designed and set up to spray the at least two different materials, and the electron-beam and/or laser unit is designed and set up to join sprayed-on material integrally by fusing by means of an electron beam and/or by means of a laser beam of the electron-beam and/or laser unit.

Abstract: The present invention relates to an electric motor, the electric motor including: a stator, which is composed of layered metal sheets, a motor support made of an electrically conductive material, a cable connection comprising an earth line cable, and at least one connecting and contacting element made of an electrically conductive material, wherein the connecting and contacting element is configured and arranged on the electric motor such that it provides an earth connection between the stator and the motor support or between the stator and the earth line cable of the cable connection, and wherein the stator and the motor support are fastened to one another independently of the connecting and contacting element.

Abstract: An electric motor has a switching unit with a number of contact wires and an annular frame part. The contact wires are arranged to form an interconnect ring for the coil ends of a stator winding and the ends of the wires being connected by insulation displacement contacts. Each of the contacts have two insulation displacement limbs for connecting at least two of the wire ends, the limbs being spaced apart, thus forming an insulation displacement slot therebetween. The frame part of the switching unit has a number of plug-in pockets for receiving the insulation displacement contacts, the number corresponding to the number of insulation displacement contacts.

Abstract: An electric motor including a rotor configured to rotate about a rotational axis and a stator extending along the rotational axis. The stator may include a stator yoke, a first tooth, and a second tooth, each provided with a shaft extending away from the stator yolk towards the rotational axis to a base. Adjacent sides of the of the first tooth and the base of the second tooth may form a groove slot. A reinforcement element may be inserted into the groove slot.

Abstract: A brush-commutated direct-current motor comprises a stator with a plurality of exciter poles, a rotor with a plurality of pole teeth, which is rotatable relative to the stator about an axis of rotation, grooves arranged between the pole teeth, and coil windings arranged on the pole teeth and a commutator which is arranged on the rotor and a plurality of lamellae to which the coil windings are connected. For manufacturing such direct-current motor the coil windings are arranged on the pole teeth in winding cycles, in each of which a coil winding is wound onto each pole tooth. It is provided that on each pole tooth a first coil winding wound around the pole tooth in a first winding direction and a second coil winding wound around the pole tooth in a second winding direction opposite to the first winding direction are arranged.

Abstract: A method for determining a motor current of an electric motor drive with a power source and with an electric motor and with a power converter connected therebetween, wherein an input current of the power source is converted by a pulse width modulated control of a number of semiconductor switches of the power converter into the motor current, wherein an intermediate circuit current of an intermediate circuit of the power source is influenced during the pulse width modulated control of the semiconductor switches, wherein an inductive voltage change is detected at a measuring point of the intermediate circuit due to the influence on the intermediate circuit current, and wherein a value for the generated motor current is determined based on the pulse width modulated control of the semiconductor switches and the inductive voltage change detected at the measuring point.

Abstract: A method for operating an electric machine with a power source, an electric motor, and an intermediary power converter, in which an input current of the power source is converted to a multi-phase output current for the electric motor by a pulse width modulated control of a number of semiconductor switches of the converter, wherein the or each pulse is generated at a first point in time and terminated after a pulse duration at a second point in time, in which for each alternating current component, which is generated in the course of the pulse-width-modulated driving of the semiconductor switches in an intermediate circuit of the power source, a frequency spectrum is determined, and in which the pulse durations of the pulses of the pulse width modulated control can be set such that the sum of the frequency spectra of the alternating current components is minimal.

Abstract: A motor assembly has an electric motor with a motor housing and an electronics unit. A first housing shell is formed as a motor carrier and has the motor housing fastened to it. A second housing shell is in the form of a cooling cover. An electronics carrier is arranged in sandwich-like fashion between the cooling cover and the motor carrier. The electronics carrier has, at the cooling cover side, a first, circumferentially encircling seal which seals off a first contact edge formed between the electronics carrier and the cooling cover and the electronics carrier has, at the motor carrier side, a second, circumferentially encircling seal which seals off a second contact edge formed between the electronics carrier and the motor carrier.

Abstract: A stator module for an electric motor has a stator laminated core with a number of inwardly directed stator teeth and a rotating-field winding with a plurality of phases arranged on the stator teeth. The rotating-field winding has at least one coil per phase, which coil is electrically connected to a first phase end and a second phase end. A laying ring is placed onto the stator laminated core at the end face and surrounds the stator teeth as coil body in order to guide the rotating-field winding. An annular cover is placed onto the laying ring at the end face, on which cover each of the phase ends is contacted with one of the phase ends of another phase, in such a way that the entire rotating-field winding does not protrude radially externally beyond an outer periphery of the stator laminated core.

Abstract: A method for operating an electric motor-driven refrigerant compressor of a motor vehicle is provided. A first temperature of a power semiconductor is measured, and a second temperature of the power semiconductor is determined using a theoretical model of the motor-driven refrigerant compressor. A difference between the first temperature and second temperature is determined. A fault is detected if the difference is greater than a first threshold. The invention further relates to a motor-driven refrigerant compressor of a motor vehicle, to the use of a motor-driven refrigerant compressor, and to a motor vehicle comprising a refrigerant circuit.

Abstract: A brush-commutated direct-current motor comprises a stator which includes a plurality of exciter poles, a rotor rotatable relative to the stator about an axis of rotation, a plurality of pole teeth arranged on the rotor, and grooves arranged between the pole teeth, wherein the pole teeth are separated from each other by the grooves along a circumferential direction around the axis of rotation. On the pole teeth coil windings are arranged. A commutator is arranged on the rotor and includes a plurality of lamellae, wherein each coil winding is connected with one of the lamellae via a first connecting arm and is connected with another one of the lamellae via a second connecting arm.

Abstract: An electric motor of a vehicle component, in particular a window opener drive or seat adjuster drive, includes a rotor, a stator with a three-phase stator winding having at least one coil per phase with first and second coil ends, and a connection element having a number of vias corresponding to the number of coil ends, the vias forming first and second contacting groups. The vias of the first contacting group are paired with a contact ring with contact points for electrically conductively connecting the first coil ends, in particular while forming a neutral point. The second coil ends are guided through the vias of the second contacting group, and a coil end portion or additional conductor element of the coil ends is azimuthally guided along the connection element and guided, preferably axially, out of the connection element while providing a three-phase winding connection at exposed positions.

Abstract: A method and an apparatus for providing a toothed motor part of an electric motor with a winding using a coil wire with a round wire cross-section, wherein the coil wire is converted into a coil wire with a wire cross-section different from the round wire cross-section in a forming process, and the formed coil wire is wound around the teeth of the motor part to produce a rotating field winding.

Abstract: A setting device, particularly a motor vehicle parking brake includes a remotely-operated drive, a hollow shaft, a spindle shaft and an elastic element. The hollow shaft is driven by the remotely-operated drive so that the hollow shaft rotates. The spindle shaft moves relative to the hollow shaft within the hollow shaft due to the rotation of the hollow shaft. The spindle shaft is connected to a brake cable such that the spindle shaft can apply and release the brake as it moves in different directions within the hollow shaft. The elastic element is loaded due to movement of the hollow shaft as the hollow shaft is driven in an attempt to release the brake while the brake cable is blocked.

Abstract: A brush system of an electric motor, having a commutator, at least one brush that is guided within a brush duct and is provided with a connection line, and a spring element that exerts a spring force on the brush when the spring element is effectively connected thereto, such that the brush rests against the commutator; the brush duct includes a longitudinal duct slot inside which the connection line extends and which has a constriction that the connection line penetrates when the effective connection between the spring element and the brush is established.