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US 8,513,852 B2Granted
Commutation device and electric machine
AssigneeRobert Bosch GmbH
InventorsDaniel Klumpp, Erwin Sinni, Anita Seebacher
Life of this patent
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Abstract
The invention relates to a commutation device (1) having a rotatable commutator (2) and at least one grinding element (16, 17, 18, 19) contacting the commutator (2). According to the invention, means (21) for removing abrasion debris (20) occurring during commutation are provided. The invention further relates to an electric machine having a commutation device (1) of said kind.
Claims14
Commutation device comprising:
- a rotatable commutator;
- at least one grinding element contacting the commutator;
- means for removing abrasion debris occurring during commutation, wherein the means for removing abrasion debris is a spring that rests on the commutator;
- and
- a grinding element holder having a plurality of casings for accommodating in each case one grinding element, wherein the means can be secured to the grinding element holder in two different directional positions as a function of the rotational direction of the commutator.
2 more elements
Dependencies are inferred from the claim text.