发明名称 |
Stator of rotary electric machine |
摘要 |
A stator of a rotary electric machine includes a stator core and polyphase coils. The stator core has a plurality of slots. The polyphase coils are provided in the slots. Each phase of the polyphase coils has a plurality of coils formed for each pole and connected in parallel. When winding in which a coil pitch is equal to number of slots divided by number of poles is termed full-pitch winding, when winding in which a coil pitch is larger than the coil pitch of the full-pitch winding is termed long-pitch winding, and when winding in which a coil pitch is smaller than the coil pitch of the full-pitch winding is termed short-pitch winding, at least two of the coils of each phase are formed on the stator core by wave winding to alternate between the long-pitch winding and the short-pitch winding along a circumferential direction of the stator core. |
申请公布号 |
US9203289(B2) |
申请公布日期 |
2015.12.01 |
申请号 |
US201313765078 |
申请日期 |
2013.02.12 |
申请人 |
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI |
发明人 |
Minoshima Norimoto;Saijo Masaki |
分类号 |
H02K3/00;H02K23/32;H02K3/28 |
主分类号 |
H02K3/00 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A stator of a rotary electric machine with a plurality of poles, comprising:
a stator core having teeth that define therebetween a plurality of slots; and polyphase coils provided in the slots, each phase of the polyphase coils having a plurality of coils that are formed for each pole and connected in parallel, wherein when winding in which a coil pitch is equal to number of the slots divided by number of the poles is termed full-pitch winding, when winding in which a coil pitch is larger than the coil pitch of the full-pitch winding is termed long-pitch winding, and when winding in which a coil pitch is smaller than the coil pitch of the full-pitch winding is termed short-pitch winding, at least two of the coils of each phase are formed on the stator core by wave winding so as to alternate between the long-pitch winding and the short-pitch winding along a circumferential direction of the stator core, wherein each of the coils connected in parallel is provided by a seamless conducting wire and has a pair of lead wires extending from portions that form the short-pitch winding, length of at least one of the paired lead wires being the same or smaller than length of the coil pitch of the short-pitch winding. |
地址 |
Aichi-ken JP |