Mitsubishi Electric Corporation

Michiya Yasui

Shogo Okamoto

Yuki Yamamoto

Masaya Inoue

Shinji Nishimura

Akihiro Yamamura

Yoshihiro Harada

Shinichiro Yoshida

Yoshiro Imazawa

Shuichi Tamura

Kensaku Kuroki

Ken Nishikawa

Shiro Iizuka

Naohiko Harada

Syuichi Tamura

Toshiyuki Sugai

Naoya Nishikawa

The rotary electric machine includes concentrated winding coil that is configured by winding a conductor wire around a tooth for multiple laps so as to pass through a concave space that is formed by trunk portions and first and second flange portions of first and second insulators, a crossover points of the conductor wire being formed on a coil end of the concentrated winding coil that is positioned above the first insulator, slot-housed portions of the concentrated winding coil that are positioned on two circumferential sides of the tooth being configured such that the conductor wire is arranged in a staggered stacking pattern in multiple rows and in multiple layers, and a varnish being applied to the coil end that is positioned above the first insulator.

Stator for rotary electric machine

The present invention provides an automotive dynamoelectric stator that enables vibration resistance of a lead portion to be ensured and reductions in area of the lead portion and a coil end group that is exposed to a cooling airflow to be suppressed without increasing work or cost. In a dynamoelectric machine according to the present invention, first lead portions that connect a plurality of windings to configure phase windings are each led axially outward from a rear-end coil end group, and then disposed so as to extend parallel to an axially outer peripheral surface of the rear-end coil end group so as to cross at least one other first lead portion, and so as to be separated from the axially outer peripheral surface of the rear-end coil end group.

Automotive dynamoelectric stator

A holding jig is made into cylindrical body that has a conductor insertion aperture, and a conductor end portion is inserted into the conductor insertion aperture in a loosely-fitted state and held. The holding jig is moved along an arc that has a radius L that is centered around a projecting root portion of the conductor end portion to a vicinity of a coil end to bend and form the conductor end portion into a desired lead around shape.

Dynamoelectric winding end portion forming apparatus

Growing community of inventors

Tokyo, Japan

Michiya Yasui