Denso Corporation

Isoshi Soga

Takashi Nagaya

Tsuyoshi Matsuda

Kazuya Nagasaka

Kazuhiro Miura

Yuuya Asai

Takumi Okano

Yoshihiro Adachi

Akihiko Seki

Yukihide Ishino

Tetsuji Yoshikawa

Yuji Takemura

A stator includes a main yoke having a cylindrical shape with a bottom, an auxiliary yoke having a band shape arranged on an outer or inner circumferential wall surface of this main yoke, and a field magnet arranged inside the main yoke. The auxiliary yoke is arranged along a circumferential direction on the outer or inner circumferential wall surface of the main yoke. One end of the auxiliary yoke has at least one protrusion, and another end of the auxiliary yoke has at least one recess facing and engaging in a circumferential direction with the protrusion either on the inner or outer circumferential wall surface of the main yoke.

Stator with split core and yoke with protrusions and recesses engaging together and surrounding the split core

Stator and manufacturing method of stator

A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions.

Stator, brushless motor, stator manufacturing method

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Kariya, Japan

Isoshi Soga