Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Aisin Seiki Kabushiki Kaisha

Aisin Corporation

Takefumi Komaki

Masayuki Ikemoto

Yoshinari Nakagawa

Hiroshi Kato

Tomohito Ono

Takashi Matsumoto

Shinya Sano

Hiroto Hashimoto

Takamasa Takeuchi

Teppei Tsuda

Tsuyoshi Miyaji

Takuya Komatsu

Satoshi Miyanaga

Hiroki Nakane

Minoru Anai

A rotor that includes a shaft; a rotor core that is attached to the shaft and that is configured of a plurality of electric steel plates that are stacked; and a permanent magnet that is embedded in the rotor core, wherein: a coolant supply port that supplies a coolant to the rotor core is provided in the shaft, and at least two electric steel plates of the plurality of electric steel plates each include a first portion that has a first thickness in a rotational axis direction and a second portion that has a second thickness in the rotational axis direction, which is thinner than the first portion, the second portion extending in a radial direction and configuring a flow path through which the coolant supplied from the coolant supply port of the shaft flows.

Rotor

A rotor for a rotary electric machine, the rotor including: a rotor core; a rotor shaft having a tubular shape, passing through a radially inner side of the rotor core to be coupled to the rotor core, and extending along an axial direction; an oil supply path that supplies oil to the rotor shaft, a portion to be lubricated that is disposed on a first axial side with respect to the rotor core, wherein one side in the axial direction is defined as the first axial side and another side in the axial direction is defined as a second axial side; and a lubrication oil path through which oil is supplied to the portion to be lubricated.

Rotor for rotary electric machine and vehicle drive device including the rotor for rotary electric machine

A structure for cooling a rotating electrical machine includes: an oil pump, a supply oil passage connected to a discharge port of the oil pump, and a first oil passage that is an oil passage located above a stator of the rotating electrical machine in a vertical direction and that has a supplied portion, a discharge hole, and a discharge portion. The supplied portion is connected to the supply oil passage. The discharge hole is formed on a first side in an axial direction, which is one side in the axial direction of the rotating electrical machine with respect to the supplied portion and is configured to discharge oil toward the stator. The discharge portion is formed on the first side with respect to the discharge hole. A second oil passage is formed inside a rotor shaft to which a rotor of the rotating electrical machine is fixed, and a third oil passage connects the discharge portion of the first oil passage and the second oil passage. The third oil passage is formed along a first wall of the case which is located on the first side with respect to the rotating electrical machine.

Structure for cooling rotating electrical machine and vehicle drive device

Growing community of inventors

Okazaki, Japan

Takefumi Komaki