Mitsubishi Electric Corporation

Masaki Hinoue

Motokazu Kuroda

Provided is a rotating electric machine capable of suppressing an increase in temperature of an output terminal () to suppress a temperature rise of an internal device, and preventing lowering of a force for fastening the output terminal and a terminal portion of an external device. The rotating electric machine for a vehicle includes a rectifier provided inside a casing, and a terminal device projecting outward through an opening portion of the casing to connect the internal device and the external device. The terminal device includes the output terminal () projecting outward through the opening portion to be connected to the terminal portion of the external device by fastening, and a resin body () having electrical insulating property and high thermal conductivity, for integrally covering the output terminal () except at least for a portion to be connected to a harness-side terminal ().

Rotating electric machine

An object of the present invention is to provide a rotary electric machine that can improve the reliability of a connection terminal by preventing brazing material applied to butting portions of the connection terminal from flowing out. The rotary electric machine according to the present invention has, on at least one of the inner and outer circumferences of a hole portionof a connection terminal, a groove portion, orthat can prevent brazing materialfrom flowing out from between butting portions, thereby solving a problem that a crack occurs on the connection terminal upon fusing of the connection terminal and a lead conductive wire.

Rotary electric machine

A brush holder device of a vehicle AC generator includes: a regulator circuit that adjusts magnitude of an AC voltage generated in a stator; a base that is attached within a rear bracket and formed by integrally molding a brush holder portion having a brush insertion hole and holding a brush within the brush insertion hole and a regulator circuit housing portion in which the regulator circuit is housed and held; a cap that is made of resin and has sufficient elasticity to close the brush insertion hole; and a plate that is made of metal, integrally has the cap made of resin, and is attached to the brush holder portion.

Growing community of inventors

Chiyoda-ku, Japan

Masaki Hinoue