| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of a caulked part for fixing a coil winding to the bus ring of a motor by caulking and to enhance workability by securing a space for allowing a caulking tool to be inserted therein. SOLUTION: The bus rings 32U, 32V, 32W, which are constituted of bent wire materials in almost annually and are arranged along a stator 17, are equipped with a plurality of large diameter parts 32a and small diameter parts 32b which alternately extend in the circumferential direction and a plurality of linear crossing parts 32c which radially extend and connect the adjacent large diameter parts 32a to the small diameter parts 32b. The windings 20 of the several phases of coils 21U, 21V, 21W which constitute a stator 17 are connected to the crossing parts 32c, dispensing with bending the crossing parts 32c of the bus rings 32U, 32V, 32W into a U-shape nor superposing two pieces to facilitate working. This also enables the width in the circumferential direction of the crossing part 32c to be accommodated in the thickness of one wire material, facilitating the wire connection work with the caulking tool in a narrow space. COPYRIGHT: (C)2007,JPO&INPIT
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