
基本信息:
- 专利标题: 旋转电机
- 专利标题(英):Rotary motor
- 申请号:CN201810228242.4 申请日:2018-03-20
- 公开(公告)号:CN108696004A 公开(公告)日:2018-10-23
- 发明人: 三好努 , 矢岛健司 , 税所亮平
- 申请人: 株式会社日立产机系统
- 申请人地址: 日本东京都
- 专利权人: 株式会社日立产机系统
- 当前专利权人: 株式会社日立产机系统
- 当前专利权人地址: 日本东京都
- 代理机构: 北京尚诚知识产权代理有限公司
- 代理人: 龙淳
- 优先权: 2017-078108 20170411 JP
- 主分类号: H02K1/14
- IPC分类号: H02K1/14 ; H02K3/52
When a current flows in a coil wound around a bobbin, a gap is generated between the coil and the bobbin having different thermal expansion coefficients due to an increase in temperature. At this time, when the bobbin vibrates due to electromagnetic vibration, friction and noise are generated between the bobbin and the stator core, which causes wear and breakage of the bobbin, which is not preferable from the viewpoint of long-term reliability. Accordingly, an object of the present invention is to provide a concentrated-wound permanent magnet motor capable of stably fixing the bobbin in temperature changes and electromagnetic vibrations during operation. In order to solve the above problems, a rotary motor according to the present invention includes: a stator having teeth formed by laminating steel sheets; a rotor having a rotor core, wherein the rotor core is formed by laminating steel sheets, and a permanent magnet is arranged on a face opposite to the teeth; and a bearing disposed between the stator and the rotor; a substantially rectangular tubular bobbin around which a coil is wound is mounted on the teeth; and leaf springs that are in contact with the bobbin are disposed on the end plate of the steel plates constituting the teeth.