Mitsubishi Electric Corporation

Takashi Hashiba

Yoshinobu Utsumi

Mitsunori Ishizaki

Toshiaki Kashihara

Hiroyuki Higashino

Tadashi Murakami

Jun Tahara

Tomoaki Murata

Satoshi Mitsunaga

Ryota Ashikawa

The rotary electric machine includes a motor unit, and an inverter unit having a power module, a field module, and a cooler. The cooler includes a heat transfer member having, on the one-side surface, a channel groove recessed toward the other side, a lid member, a sealing agent, and a coolant supply/discharge unit; and the lid member is fixed to the heat transfer member with a screw hole, a through hole, and a screw; and, at a position between the screw hole and the through hole, and the channel groove, a recess is provided on one or both of the one-side surface of the heat transfer member and the other-side surface of the lid member, and the sealing agent is applied on the side closer to the channel groove than the recess while no sealing agent is applied on the side closer to the screw hole than the recess.

Rotary electric machine

A rotating electrical machine such that a power supply unit can be efficiently cooled, with no increase in size in an axial direction of the rotating electrical machine, is provided. A rotating electrical machine main body and a power supply unit are integrally fixed, and a refrigerant passage is provided on the rotating electrical machine main body side of a metal frame configuring the power supply unit. The refrigerant passage and a control part that controls power supplied to the rotating electrical machine main body are disposed in the same plane in an axial direction of the rotating electrical machine main body, and the refrigerant passage is disposed farther to a radial direction outer side of the rotating electrical machine main body than the control part.

Rotating electrical machine including a refrigerant passage

Growing community of inventors

Tokyo, Japan

Takashi Hashiba