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US 7,312,546 B2Granted
Drive unit
AssigneeBrose Gahrzeugteile GmbH & Co. KG, Coburg
InventorsHelmut Sesselmann, Matthias Hoffmann, Markus Schultz
Life of this patent
Estimating the term…
Abstract
A driving unit especially adapted to adjusting devices for motor vehicles having an electric motor, a gear box and an electronic control device. At least one element of the electric motor, for example, at the driving shaft, the magnetic short-circuit or the motor side crankcase casing, additionally provides a gear box mechanical feature and/or a mechanical member, for example, a gear box side crankcase casing, provides an electric motor or electronic control device feature.
Claims20
Drive unit for adjustment devices in motor vehicles, comprising:
- an electric motor;
- a gearbox comprising a hollow wheel with internal teeth;
- and
- an electronic control device;
- wherein the electric motor is formed as a disc rotor motor comprising:
- a rotor disc, the rotor disc being connected concentrically to a drive shaft;
- at least one permanent magnet or fixed exciter coils;
- and a magnetic short circuit;
- and
- wherein the magnetic short circuit of the electric motor is formed in one-piece with the hollow wheel such that the magnetic short circuit of the electric motor carries the hollow wheel of the gearbox.
7 more elements
Dependencies are inferred from the claim text.