| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator having a simple structure and allows a plurality of iron cores to be assembled firmly, and which improves the efficiency. SOLUTION: The stator 10 includes a housing 20, an annular stator holder 30 attached to the housing 20, and an annular stator group 40 press-fitted and fixed in the stator holder 30, with a plurality of stator pieces 41 arrayed in annular form. Each stator piece 41 has a split iron core 50, in which a plurality of electromagnetic steel plates are stacked, an insulating member 60 which insulates the segmental iron core 50, and a stator coil 42, which is wound around the split iron core 50 via the insulating member 60. The split iron core 50 includes the first core 51 and the second core 52, and the first core 51 consists of electromagnetic steel plates 51a, where rolling takes place circumferential direction and has a hole 55 which extends radially at the tooth part 54, and the second core 52 is constituted of electromagnetic steel plates 52a, where rolling takes in radial direction and is arranged in the hole 55. COPYRIGHT: (C)2010,JPO&INPIT |
