STATOR AND ROTARY ELECTRIC MACHINE

• Main Author: MATSUO KEISUKE
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2023
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a structure capable of preventing a coil bobbin from slipping out during assembly while suppressing interference with a holding member attached to an end surface in an axial direction of a stator.SOLUTION: A stator applied to a rotary electric machine includes: a yoke portion; a stator core which has tooth portions projecting and extending from the yoke portion in a radial direction of the rotary electric machine and in which a first surface facing one end side in an axial direction of the rotary electrical machine is mounted in contact with a holding member; a coil bobbin which is inserted into and mounted on the tooth portion; and a conductor which is wound around the coil bobbin. A claw receiving portion is formed in the yoke portion on a second surface of the stator core opposite to the first surface. The coil bobbin has a plurality of hooks extending radially and arranged along the second surface. The yoke portion is exposed on the first surface of the stator core, and a plurality of slipping-out prevention portions due to engagement of hooks and claw receiving portions are formed on the yoke portion on the second surface of the stator core.SELECTED DRAWING: Figure 4 【課題】ステータの軸方向端面に取り付けられる保持部材との干渉を抑制しつつ、組立時にコイルボビンを抜け止めできる構造を提供する。【解決手段】回転電機に適用されるステータは、ヨーク部と、ヨーク部から回転電機の径方向に突出して延びるティース部とを有し、回転電機の軸方向一端側に臨む第１面が保持部材に接触して取り付けられるステータコアと、ティース部に挿入されて装着されるコイルボビンと、コイルボビンに巻回される導線と、を備える。ステータコアの第１面とは反対側の第２面には、ヨーク部に爪受け部が形成される。コイルボビンは、径方向に延びるとともに第２面に沿って並んで配置された複数のフックを有する。ステータコアの第１面では、ヨーク部が露出し、ステータコアの第２面では、フックと爪受け部の係合による複数の抜け止め部がヨーク部に形成される。【選択図】図４