Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device
摘要
說明書
The speed reducer 810 may have a plurality of rollers that rotate due to friction between the contact surfaces of the gears, in place of or in addition to the plurality of gears that rotate with the teeth meshed with each other. For example, the speed reducer has a sun roller having the function of the sun gear 811, a fixed roller having the function of the fixed gear 813, and a composite planet roller having the function of the composite planetary gear 812. In this configuration, for the purpose of improving the friction effect, the contact surfaces of each of the pair of fixed rollers arranged coaxially with the planetary rollers may be tilted by a predetermined angle with respect to the rotation axis of the planetary rollers, to thereby increase the contact area between the fixed roller and the planetary roller. Further, in a speed reducer in which a planetary roller is interposed between a pair of fixed rollers arranged coaxially, an elastic member that presses the planetary roller toward at least one of the pair of fixed rollers may be provided.
(Effects of Motor Unit)
Next, effects of the motor unit 800 of the present embodiment will be described.
