A DC-excited brushed motor includes a commutation system with a commutator with vanes uniformly distributed in a circumferential direction and at least two brushes which interact with the vanes, to connect the brushes to a DC voltage network via connecting leads. The commutation system is in a metal housing of the motor, and the motor includes an interference suppressor for the commutation system including an interference suppression choke and a capacitor for each connection lead, and the connection leads include an EMC shield between a connection for the respective capacitor and a housing passage through the metal housing of the motor.

Disclosed is a bearing assembly for an electric motor for a vehicle, providing at least one main bearing configured to support a rotational element of the electric motor, and a sacrificial bearing. The main bearing includes at least one inner ring, at least one outer ring and at least one plurality of rolling elements. The sacrificial bearing provides an outer ring, an inner ring, and a plurality of rolling elements disposed between the outer ring and the inner ring. A value of a breakdown voltage for the sacrificial bearing is less than a value of the breakdown voltage for the at least one main bearing.

An actuator device for adjusting an adjusting element may include a housing, an actuator for driving the adjusting element, and a drive circuit for operating the actuator. The housing may include a support body that may include a drive receiving space and a gear receiving space. The drive circuit may include a plurality of electrically conductive conductor bodies for contacting a plurality of drive contacts of the actuator, for contacting a plurality of components of the drive circuit, and for contacting a supply device. At least one conductor body of the plurality of conductor bodies may be structured as a contact tongue, arranged on the drive circuit, and abut on an electrically conductive actuator housing in a pretensioned manner establishing an electrical contact between the drive circuit and the actuator housing. The actuator housing may be configured as at least one of a zero-ground potential and a reference potential.

An actuator device for adjusting an adjusting element may include a housing, an actuator for driving the adjusting element, and a drive circuit for operating the actuator. The housing may include a support body that may include a drive receiving space and a gear receiving space. The drive circuit may include a plurality of electrically conductive conductor bodies for contacting a plurality of drive contacts of the actuator, for contacting a plurality of components of the drive circuit, and for contacting a supply device. At least one conductor body of the plurality of conductor bodies may be structured as a contact tongue, arranged on the drive circuit, and abut on an electrically conductive actuator housing in a pretensioned manner establishing an electrical contact between the drive circuit and the actuator housing. The actuator housing may be configured as at least one of a zero-ground potential and a reference potential.

A motor may include a housing, a motor assembly accommodated in the housing, and a mold cover having an outer circumferential surface. The outer circumferential surface may be coupled to the housing, which has electrical conductivity. A noise filter is provided in the mold cover. A ground terminal of the noise filter is electrically connected to the outer circumferential surface of the mold cover.

A motor may include a housing, a motor assembly accommodated in the housing, and a mold cover having an outer circumferential surface. The outer circumferential surface may be coupled to the housing, which has electrical conductivity. A noise filter is provided in the mold cover. A ground terminal of the noise filter is electrically connected to the outer circumferential surface of the mold cover.

A drive unit for an electrically driven vehicle with an inverter module, an electric machine a stator which is controllable by the inverter module. The rotor of the electric machine rotationally drivingly communicates with at least one shaft of the drive unit, the shaft being rotatably supported in a respective associated housing by a bearing arrangement. The housing and the inverter module are grounded. Further, the drive unit has a grounded, low-impedance electrical connection between the shaft and the inverter module so that, when a potential difference occurs between the shaft and the inverter module, a short circuit is produced. Low-impedance potential equalizer is provided between the shaft and the associated housing. It is provided that the shaft is formed as a rotor shaft or as a transmission shaft, the bearing arrangement has two bearings spaced apart axially from one another, and the potential equalizer is formed axially between the two bearings.

A drive unit for an electrically driven vehicle with an inverter module, an electric machine a stator which is controllable by the inverter module. The rotor of the electric machine rotationally drivingly communicates with at least one shaft of the drive unit, the shaft being rotatably supported in a respective associated housing by a bearing arrangement. The housing and the inverter module are grounded. Further, the drive unit has a grounded, low-impedance electrical connection between the shaft and the inverter module so that, when a potential difference occurs between the shaft and the inverter module, a short circuit is produced. Low-impedance potential equalizer is provided between the shaft and the associated housing. It is provided that the shaft is formed as a rotor shaft or as a transmission shaft, the bearing arrangement has two bearings spaced apart axially from one another, and the potential equalizer is formed axially between the two bearings.

Disclosed is an electric motor, in particular for a vehicle drive. In one example, the electric motor has a housing (12) and a rotor shaft (14) which is accommodated in the housing (12) such that it can rotate via bearings (16). The housing (12) and the rotor shaft (14) are electrically connected to one another via a singular electrically conductive contact ring (42) to ground the rotor shaft (14).

Disclosed is an electric motor, in particular for a vehicle drive. In one example, the electric motor has a housing (12) and a rotor shaft (14) which is accommodated in the housing (12) such that it can rotate via bearings (16). The housing (12) and the rotor shaft (14) are electrically connected to one another via a singular electrically conductive contact ring (42) to ground the rotor shaft (14).