Rotating electric machine for a motor vehicle engine.

Abstract

Rotating electric machine for a motor vehicle drive Electric machine (10) comprising a casing (12) and a rotating assembly (14) mounted to move about an axis of rotation (X) inside the casing (12), the rotating assembly (14) comprising a rotor shaft (20) which has grooves (22) on an external surface, said machine comprising a reducer (16) provided with a pinion (18) cooperating with said grooves (22), said machine also comprising a sensor (24) configured to measure at least one kinematic quantity of said rotating assembly (14), said electric machine (10) being characterized in that it comprises an electrically conductive element (50) configured to electrically connect said rotating assembly (14) to ground,and characterized in that it further comprises an annular support (30) comprising a plurality of channels (32) configured to guide a lubricant towards the interior of the rotor shaft (20) so as to supply the splines (22). Figure for the abstract: Fig. 1,

Claims

electrical conductor (50) are in contact.

6. Electrical machine (10) according to any one of the preceding claims, characterized in that the electrically conductive element (50) and the annular support (30) together delimit a housing (60) intended to accommodate therein at least one conductive elastic element (62) configured to allow circulation of an electric current between the rotor shaft (20) and the electrically conductive element (50).

7. Electrical machine (10) according to any one of the preceding claims, characterized in that at least a portion of the channels (32) of the annular support (30) have a portion helix shape.

8. Electrical machine (10) according to one of the preceding claims, characterized in that the casing (12) comprises a rib (72) configured to scrape oil and / or in that the casing comprises at least one passage (73, 74) configured to guide a lubricant such as oil towards at least a portion of the channels (32) of the annular support (30).

9. Electrical machine (10) according to the preceding claim, characterized in that the rib (72) extends in particular perpendicular to the axis of rotation (X) of the rotor shaft (20) and / or in that the rib (72) is contiguous to the first passage (73).

10. Motor vehicle (20), characterized in that it is equipped with an electric machine (10) according to one of the preceding claims. [Fig. 4] [Fig. 6]

Images