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US 2014/0191623 A1Published application
Breathing electric motor
AssigneeBrose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
InventorTOBIAS HILLENBRAND
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Abstract
An electric motor has efficient self-cooling. The electric motor contains a rotor that is rotatably mounted with respect to a stator. On a first sub-segment of an end face of the rotor, a first air-guiding contour is formed that, during rotation of the rotor in a reference rotation direction, generates an outwardly directed air flow. On a second sub-segment of the same end face, a second air-guide contour is formed that, during rotation of the rotor in a reference rotation direction, generates an inwardly directed air flow.
Claims11
An electric motor, comprising:
- a stator;
- a rotor mounted such that said rotor can rotate in relation to said stator, said rotor having an end face with a first partial segment and a second partial segment;
- a first air-guiding contour generating an outwardly directed air stream when said rotor rotates in a reference rotation direction, and formed on said first partial segment of said end face of said rotor;
- a second air-guiding contour generating an inwardly directed air stream when said rotor rotates in the reference rotation direction, and formed on said second partial segment of said end face;
- and
- during rotation of said rotor, an overall air stream produced by said first and second air-guiding contours continuously changes its direction at each stationary point over a periphery of said end face as said first partial segment and said second partial segment alternately pass by.
3 more elements
Dependencies are inferred from the claim text.