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US 8,421,283 B2Granted
Electric motor drive, in particular fan drive
AssigneeBrose Fahrzeugteile GmbH & Co. KG, Wuerzburg
InventorsMarco Stoehling, Karl-Heinz Bauer, Michael Rueb, Frank Wittstadt, Hannelore Diller, Peter Tiemeyer
Life of this patent
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Abstract
An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the sound of at least bearing play-related contact noise and vibration or humming noise.
Claims16
An electric motor drive comprising:
- a commutator motor whose motor shaft is rotatably supported on axially opposite sides in shaft bearings that are each covered by an end plate;
- and
- a damping system for sound damping of bearing-play-related impact noises and operation-related whining noises is arranged on a bearing side facing away from the end plate of the shaft bearing,
- wherein the damping system has a sealing disk, which is axially movable on the motor shaft, and a sliding disk that faces the shaft bearings,
- wherein the damping system has a spring element or a wave spring in the manner of a spring washer, and
- wherein the damping system has a damping element on an inner side of the sealing disk facing the shaft bearing.
3 more elements
Dependencies are inferred from the claim text.