ROTARY ELECTRIC MACHINE

• Main Authors: SAITO KAZUHIRO, KANG YOUNG DAE, FUJISAWA TAKESHI, YOKOZUKA TAKASHI, SHIZUKU OSAMICHI
• Format: Patent
• Language: English; Japanese
• Published: 07.07.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a rotary electric machine capable of reducing assembling man-hours for positioning a bus bar holder.SOLUTION: A rotary electric machine 10 comprises: a stator opposing to a rotor at an interval on the outer side of a diametrical direction; a housing that stores the rotor and the stator therein; a bus bar electrically connected to the stator; and a bus bar holder that holds the bus bar. The housing has a top wall portion 32a covering the stator from one side in an axial direction. The top wall portion has a plurality of recessed portions 39b disposed at intervals in a circumferential direction and recessed from a surface on the one side in the axial direction of the top wall portion toward the other side in the axial direction. The bus bar holder has a plurality of disposed portions 91b disposed in the plurality of recessed portions, respectively. The plurality of recessed portions include a first recessed portion 39c, and a second recessed portion 39d. A difference between a dimension L2 in a circumferential direction of the second recessed portion and a dimension L3 in a circumferential direction of the disposed portion disposed in the second recessed portion is smaller than a difference between a dimension L1 in a circumferential direction of the first recessed portion and the dimension L3 in the circumferential direction of the disposed portion disposed in the first recessed portion.SELECTED DRAWING: Figure 5 【課題】バスバーホルダを位置決めする組立工数を低減できる回転電機を提供すること。【解決手段】回転電機１０は、ロータと隙間を介して径方向外側に対向するステータと、内部にロータおよびステータを収容するハウジングと、ステータに電気的に接続されたバスバーと、バスバーを保持するバスバーホルダと、を備える。ハウジングは、ステータを軸方向一方側から覆う天壁部３２ａを有する。天壁部は、天壁部の軸方向一方側の面から軸方向他方側に窪み周方向に間隔を空けて配置された複数の凹部３９ｂを有する。バスバーホルダは、複数の凹部にそれぞれ配置された複数の被配置部９１ｂを有する。複数の凹部は、第１凹部３９ｃと、第２凹部３９ｄと、を含む。第２凹部の周方向の寸法Ｌ２と第２凹部に配置された被配置部の周方向の寸法Ｌ３との差は、第１凹部の周方向の寸法Ｌ１と第１凹部に配置された被配置部の周方向の寸法Ｌ３との差よりも小さい。【選択図】図５