Toyota Jidosha Kabushiki Kaisha

Yukiko Nakano

Hiroyuki Hattori

Sumio Shirai

Yoshinobu Murakami

A coated electric wire for winding that includes an insulation coating including appropriate pores in a resin to suppress erosion due to partial discharge is provided. The present disclosure relates to a coated electric wire for winding that includes a conductor and an insulation coating that coats a periphery of the conductor, wherein the insulation coating includes a constant volume of pores having an average diameter equal to or more than a pore diameter (A) obtained by a specific measuring method.

Coated electric wire for winding

A method for insulating connection ends of a stator winding includes a resin placing step of placing a resin member formed of a thermosetting resin which is to be melted by heating on connection ends in a coil end portion of a stator winding of a rotary electric machine, a melting step of melting the resin member by heating to cover the connection ends with a melted resin, and a curing step of curing the melted resin after the melting step. Recesses and projections for positioning that correspond to the arrangement locations of the connection ends can be provided on a surface of the resin member.

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Toyota, Japan

Yukiko Nakano