Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Shinsuke Henmi

Satoru Akutsu

Toshinori Tanaka

Masatsugu Nakano

Takeshi Sugiyama

Kyouhei Yamamoto

Masafumi Okazaki

Hideki Megata

Tetsunao Takaki

Yasuhide Yagyu

Provided is a rotation angle detecting device with high detection accuracy, which can be structured with a small number of teeth even if a shaft angle multiplier increases, thus enhancing winding workability and becoming suitable for mass production. The rotation angle detecting device includes: a stator formed of an iron core with teeth, the stator including: an exciting winding of one phase or more; and output windings of two phases or more; and a rotor with a salient pole, in which numbers of turns of the output windings of the two phases each have a value obtained by a function containing a sum or a difference between a sine wave of an order equal to an absolute value of a sum of a number of the salient poles and a number of the pole pairs, and a sine wave of an order equal to an integer that is different from an absolute value of the number of the pole pairs of the exciting winding and different from an absolute value of a difference obtained by subtracting the number of the salient poles from the number of the pole pairs.

Rotation angle detecting device

Terminal plates are located in a brush holder base, a spring and a brush are located in the brush holder base, and the terminal plates are connected to pigtails in an area within 90&#xb0; in a backside of an introducing portion of the pigtails in the brush, whereby operating noise and ripples of torque of a dynamo-electric machine are reduced.

Brush holder for dynamo-electric machine

A motor for use with a motorized power steering apparatus is provided in which the number of component members can be reduced, and workability in assembling the component members can be improved, while enabling miniaturization of the entire motor. The motor includes a bottomed cylindrical frame , a bracket fixedly secured to the frame , a rotating element having a shaft rotatably supported by a frame side bearing fixedly mounted on the frame and a bracket side bearing fixedly mounted on the bracket , a stationary element fixedly attached to the frame around an outer periphery of the rotating element and having a stator winding wound therearound, a rotation sensor provided on the bracket at a housing side of the bracket side bearing , and a plurality of sensor signal wires for supplying and receiving signals to and from the rotation sensor

Motor for use with motorized power steering apparatus

Growing community of inventors

Tokyo, Japan

Shinsuke Henmi