Drivetrain assembly for an electric vehicle including an electrically conductive shunt washer
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMarkus Steinberger, David Burky, Rashid Farahati
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Abstract
A drivetrain assembly for an electric vehicle is provided that includes a housing, a rotor shaft of an electric motor rotatable about a center axis, and a bearing rotatably supporting the rotor shaft with respect to the housing. The bearing includes a first race on the housing and a second race on the rotor shaft. The drivetrain assembly includes an electrically conductive shunt washer configured for creating an electrical path from the housing to the second race. The electrically conductive shunt washer includes a material including electrically conductive fibers.
Claims20
A drivetrain assembly for an electric vehicle comprising:
- a housing;
- a rotor shaft of an electric motor rotatable about a center axis;
- a bearing rotatably supporting the rotor shaft with respect to the housing, the bearing including a first race on the housing and a second race on the rotor shaft;
- and
- an electrically conductive shunt washer configured for creating an electrical path from the housing to the second race, the electrically conductive shunt washer including a material including electrically conductive fibers;
- the material further including a solid lubricant.
A method of constructing a drivetrain assembly for an electric vehicle for a motor vehicle comprising:
- rotatably supporting a rotor shaft of an electric motor for rotation about a center axis with respect to a housing by a bearing rotatably supporting the rotor shaft with respect to the housing, the bearing including a first race on the housing and a second race on the rotor shaft;
- and
- installing an electrically conductive shunt washer on a circumferential surface of the rotor shaft, the electrically conductive shunt washer being configured for creating an electrical path from the housing to the second race, the electrically conductive shunt washer including a material including electrically conductive fibers.
A drivetrain assembly for an electric vehicle comprising:
- a housing;
- a rotor shaft of an electric motor rotatable about a center axis;
- a bearing rotatably supporting the rotor shaft with respect to the housing, the bearing including a first race on the housing and a second race on the rotor shaft;
- and
- an electrically conductive shunt washer configured for creating an electrical path from the housing to the second race, the electrically conductive shunt washer including a material including electrically conductive fibers;
- the material contacting a circumferential surface of one of the rotor shaft and the housing.
Dependencies are inferred from the claim text.