Title:
An electric motor
Document Type and Number:
Japanese Patent JP5940253
Kind Code:
B2
Abstract:
An electric motor has a stator and a rotor magnetically coupled to the stator. The rotor has a shaft, a rotor core fixed to the shaft and having a plurality of teeth, a commutator fixed to the shaft adjacent the rotor core and having a plurality of segments, and rotor winding units wound about the teeth and connected to the segments. Brushes arranged in sliding electrical contact with the commutator transfer power to the rotor. Each of the rotor winding units has at least two subcoils directly connected in series to each other and separated from each other by at least one tooth. An initial subcoil and a final subcoil of each rotor winding unit are respectively directly connected to two adjacent segments.
Inventors:
Bao Tin Liu
Ji Cheng Pan
Gee Dong Chai
Shu Highway
Ji Cheng Pan
Gee Dong Chai
Shu Highway
Application Number:
JP2011109871A
Publication Date:
June 29, 2016
Filing Date:
April 22, 2011
Export Citation:
Assignee:
Johnson Electric Society Anonymous
International Classes:
H02K23/38; H02K1/14; H02K3/28
Domestic Patent References:
| JP58163258A | ||||
| JP2003092866A | ||||
| JP2010057352A | ||||
| JP56145765A | ||||
| JP2006211838A | ||||
| JP59075775U | ||||
| JP2266862A | ||||
| JP1298937A | ||||
| JP50036906A |
Foreign References:
| US5087845 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi