Mitsubishi Electric Corporation

Tomoya Uchimura

Shinichi Yamaguchi

Toru Ogawa

Hideaki Arita

Takashi Umeda

Ryuichi Takiguchi

Norihiro Watanabe

Taiga Komatsu

Kodai Okazaki

Shunta Kashima

Shoji Ishikawa

Satoshi Tesen

Hitoshi Yoshizumi

Provided is a rotating electric machine, including: a stator including: an annular core back; and a plurality of teeth projecting in a radial direction from the core back and being arranged in a circumferential direction, the plurality of teeth having slots each formed between the plurality of teeth adjacent to each other in the circumferential direction; and a rotor including: an annular rotor core which is arranged coaxially with the stator through a magnetic gap; and a plurality of magnetic poles arranged on the rotor core in the circumferential direction, wherein the rotor core includes a plurality of segment cores formed by dividing the rotor core in the circumferential direction with at division surfaces, and wherein the number of segments of the rotor core is different from a divisor and a multiple of the greatest common divisor of the number of poles of the rotor and the number of slots.

Rotating electric machine

A sensor core () is arranged in a plane (P), which is positioned on sides of opposite ends of plungers () from bosses (), and which is perpendicular to a direction of movement of the plungers (). A magnetic sensor () is arranged at a position in the plane (P), the position being apart from a magnetic path (A) of a leakage flux of a magnetic circuit (A).

Electromagnetic actuator

Provided is a rotor for a permanent magnet rotary electric machine, which enables the bonding of a permanent magnet to a rotor core in a skewed manner with respect to an axial direction of the rotor core. The rotor includes a rotor core including a cylindrical portion and a pair of polygonal columnar portions provided to both ends of the cylindrical portion in the axial direction, and a permanent magnet having a bonding surface, which is flat and bonded to the rotor core. The pair of polygonal columnar portions has flat surfaces that are arranged so that center positions are spaced apart from each other as viewed in the axial direction. The bonding surface of the permanent magnet is bonded to the respective flat surfaces of the pair of polygonal columnar portions under a state in which the permanent magnet is skewed with respect to the axial direction.

Rotor for permanent magnet rotary electric machine and permanent magnet rotary electric machine

Magnets are disposed between adjacent first claw portions and second claw portions so as to protrude toward a second end in an axial direction from tips of the first claw portions and so as to protrude toward a first end in the axial direction from tips of the second claw portions, magnet holding members include a base portion that covers a radially outer surface of the magnets, and the base portion includes a high magnetic resistance portion that is disposed in a direction that is perpendicular to a direction from the first claw portions toward the second claw portions and parallel to the radially outer surface of the magnets so as to cross a magnetic path from the first claw portions toward the second claw portions in a region between the adjacent first claw portions and second claw portions.

Rotary electric machine

Growing community of inventors

Tokyo, Japan

Tomoya Uchimura