Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Junji Ido

Shinichiro Yamamoto

Takashi Misaki

Seiji Shitama

Kohei Yoshikawa

Akinori Ooishi

Atsushi Ito

Hajime Kawaguchi

Provided is a reactor that can prevent a temperature sensor from being attached to a wound portion of a coil in a wrong direction. The reactor includes a temperature sensor having a sensor main portion attached to an outer peripheral surface of a wound portion and a wire extending from the sensor main portion. A sensor housing portion houses the sensor main portion. The sensor main portion has a detection surface facing the wound portion and a projecting portion protruding from a back surface of the sensor main portion opposite of the detection surface. The sensor housing portion has a pair of side wall portions opposing respective side surfaces of the sensor main portion. A height of a portion of the sensor main portion that has the projecting portion is larger than a width of that portion and larger than the distance between the side wall portions.

Reactor

A reactoraccording to the present invention includes a coiland a magnetic corewhere the coilis disposed. In the reactor, a core partA (B) including a stacked columnar body having a plurality of core piecesand a plurality of gap membersstacked and coating resinA (B) in which a peripheral surface coating portionA (B) for coating an outer peripheral surface of the stacked columnar body to integrally hold the core pieceand the gap memberand an end surface coating portionA for coating one end surface of the stacked columnar body are molded integrally is used for a part of the magnetic core, that is, an inner core. A manufacturing error of the core pieceor the gap memberis absorbed by the end surface coating portionA. Consequently, the core partA (B) can be molded with high accuracy and an outer corecan be assembled properly. Thus, the reactorhas high assembling workability.

Reactor, core part for reactor, converter and power conversion device

Growing community of inventors

Mie, Japan

Junji Ido