Mitsubishi Electric Corporation

Katsuya Akamatsu

Kazunori Tanaka

Kenichi Takahashi

Kyoko Higashino

Toshiaki Kashihara

Yuzuru Kobayashi

Hideyuki Hayashi

Katsuhiro Sasaki

Kenta Ninomiya

A vehicle AC power generator includes a protection cover disposed at the rear side of a rear bracket included in a housing of the vehicle AC power generator, an attachment bolt that penetrates a through-hole formed in a bottom portion of a protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal bolt that extends from a rectifier, which rectifies AC electric power, toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal bolt and the attachment bolt and is provided at the rear surface of the protection cover.

Vehicle AC power generator

To provide an AC generator equipped with a voltage regulation device capable of cost reduction in terms of both of manufacture and device, a voltage regulation device for the AC generator, and a method for manufacturing the same. In an AC generator equipped with a voltage regulation devicefor regulating the magnitude of output voltage, the voltage regulation deviceis composed of: a molded bodyhaving a plurality of insert conductors; and a circuit componentmounted on the molded bodyand electrically connected to the insert conductors, and in the voltage regulation device, an extended-portion-for-jumperis integrally provided in a part of the insert conductor

Alternating-current generator, voltage regulation device for alternating-current generator, and manufacturing methods therefor

An alternator according to the present invention includes: a shaft; a rotor that is fixed to the shaft; a stator that has a stator core that is disposed so as to surround an outer circumference of the rotor and in which a plurality of slots that extend axially are formed so as to be spaced apart circumferentially; and a front bracket and a rear bracket that hold circumferential edge portions of the stator core from two axial ends using a plurality of holding means and that envelope the stator core, a pair of first stays that are formed on the front bracket being fixed to a vehicle by bolts that penetrate through a pair of penetrating apertures that are respectively formed on the first stays, and the pair of penetrating apertures are formed at positions such that an approximate perpendicular bisector of a straight line that connects centers of the penetrating apertures intersects an axis of the shaft; and one of the holding means is disposed on the perpendicular bisector near the shaft. This configuration can prevent generation of magnetic noise without increasing weight in the brackets, in other words, without increasing overall weight.

Dynamoelectric machine

Cover of AC generator for vehicle

Growing community of inventors

Tokyo, Japan

Katsuya Akamatsu