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US 8,884,477 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
Estimating the term…
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.
Claims18
An electric motor drive comprising:
- a commutator motor whose motor shaft is rotatably supported on axially opposite sides in a first shaft bearing and a second shaft bearing that are each covered by an end plate;
- and
- a first damping system for sound damping of bearing-play-related impact noises and operation-related whining noises is arranged on a side of the first shaft bearing opposite of the end plate of the first shaft bearing,
- wherein the first damping system has a sealing disk, which is axially movable on the motor shaft, a damping element, and a sliding disk that faces the first shaft bearing,
- wherein the sealing disk is fixed to the sliding disk, and
- wherein the damping element, the sealing disk and a shaft seal of the damping system are formed into a single piece.
3 more elements
An electric motor drive comprising:
- a commutator motor whose motor shaft is rotatably supported on axially opposite sides in a first shaft bearing and a second shaft bearing that are each covered by an end plate;
- and
- a first damping system for sound damping of bearing-play-related impact noises and operation-related whining noises is arranged on a side of the first shaft bearing opposite of the end plate of the first 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 first shaft bearing, and
- wherein the sliding disk has, on a circumferential side, a plurality of carrier elements.
2 more elements
Dependencies are inferred from the claim text.