Drive device for a motor vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsMartin Reuter, Alfred Grom
Life of this patent
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Abstract
A drive device for a motor vehicle includes at least one electric machine and at least one shaft, which shaft is rotatably mounted on a housing element of the drive device and can be driven by the electric machine. At least one discharge ring is provided by which the shaft is brought into electrical contact with the housing element in order to dissipate electrical charges from the shaft to the housing element via the discharge ring. The discharge ring is formed from an electrically conductive fluid.
Claims12
A drive device for a motor vehicle, comprising:
- a housing element of the drive device;
- at least one electric machine;
- at least one shaft which is mounted rotatably on the housing element of the drive device and is drivable via the electric machine;
- and
- at least one discharge ring containing an electrically conductive fluid, via which the shaft is brought into electrical contact with the housing element in order to dissipate electrical charges from the shaft to the housing element via the electrically conductive fluid of the discharge ring, wherein
- the discharge ring is at least partially arranged in a receptacle of the housing element and at least partially accommodated in a corresponding annular receptacle of the shaft.
A drive device for a motor vehicle, comprising:
- a housing element of the drive device;
- at least one electric machine;
- at least one shaft which is mounted rotatably on the housing element of the drive device and is drivable via the electric machine;
- and
- at least one discharge ring containing an electrically conductive fluid, via which the shaft is brought into electrical contact with the housing element in order to dissipate electrical charges from the shaft to the housing element via the discharge ring, wherein
- the discharge ring is at least partially accommodated in an annular receptacle of the shaft formed by a circumferential groove.
Dependencies are inferred from the claim text.