Vehicle AC generator
AssigneeDenso Corporation
InventorKoichi Misaki
Life of this patent
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Abstract
In a vehicle ac generator, a rear cover, which is provided to cover a rectifying device, has a cover body and a protecting wall portion. The cover body forms a plurality of air intake openings through which cooling air created by rotation of a rotor is sucked in the generator. The protecting wall portion is integrally formed with the cover body. The protecting wall portion extends from an axial end surface of the cover body in an axially outward direction of a rotation shaft of the rotor, at a position higher than the air intake openings when the vehicle ac generator is mounted on a vehicle. Therefore, it is less likely that foreign materials such as water and oil will enter the inside of the rear cover from the air intake openings.
Claims10
A vehicle ac generator comprising:
- a stator having a stator winding;
- a rotor disposed to oppose the stator in an inner periphery of the stator;
- a rectifying device that converts ac voltage generated in the stator winding into dc voltage;
- and
- a protection cover surrounding the rectifying device, wherein
- the protection cover includes a cover body and a protecting wall portion integrally formed with the cover body,
- the cover body forms a plurality of air intake openings on an axial end surface through which cooling air created by rotation of the rotor is sucked in, and
- the protecting wall portion extends from the axial end surface of the cover body in an axially outward direction at a position higher than the air intake openings when mounted on a vehicle.
Dependencies are inferred from the claim text.