To provide a cooling structure of a motor, which can surely prevent the stick phenomenon of a rotor and can improve an yield.
A flow channel curving projection 57a which curves a flow channel FC for transmission oil formed along a contour of a stator 51, to keep the flow channel away from a minute space S between the stator 51 and a rotor 52, is provided at the end of the first molded resin part 57 which parallels the axial direction of a rotor shaft 54. It can prevent the inflow of the transmission oil into the minute space S, and can prevent the stick phenomenon of the rotor 52. Since the flow channel curving projection 57a is provided on the side of the stator 51, the flow channel curving projection 57a can be kept away from the rotor 52, and the assembly of a motor generator 50 can be facilitated, and also the yield can be improved by preventing the interference between the flow channel curving projection 57a and the rotor 52.
| JP2007336677A | 2007-12-27 | |||
| JPH03150050A | 1991-06-26 | |||
| JP2007336677A | 2007-12-27 | |||
| JPH03150050A | 1991-06-26 |
Yoshitaka Kozuka
Akiko Tsutsui