| 发明名称 |
DC ELECTRIC MOTOR HAVING AN INSULATING SLEEVE |
| 摘要 |
A DC electric motor (10) comprises a rotor (30) rotably attached to a stator (20). The rotor (30) comprises an output shaft (31) and a rotor core (33), and a plurality of winding coils (35) wound on the rotor core (33) and electrically connected to a commutator (34) on the output shaft (31). An insulating sleeve (32) is disposed between the output shaft (31) and rotor core (33), forming a capacitor between the output shaft (31) and rotor core (33), thereby reducing the EMI caused by the fluctuating current in the winding coils (35). |
| 申请公布号 |
US2014285042(A1) |
申请公布日期 |
2014.09.25 |
| 申请号 |
US201414225318 |
申请日期 |
2014.03.25 |
| 申请人 |
Johnson Electric S.A. |
发明人 |
LAU James Ching Sik;LI Tongjie;SUN Guowei;LUO Qingbin;ZHANG Hongwei;ZHONG Huiting |
| 分类号 |
H02K1/04;H02K11/00;H02K11/02;H02K1/17 |
主分类号 |
H02K1/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A direct current (DC) electric motor, comprising:
a stator comprising:
an outer shell,a plurality of magnets fixed to the outer shell, and a plurality of brushes disposed on the outer shell; and
a rotor configured to rotate within the stator, comprising:an output shaft,a rotor core,a commutator fixed to the output shaft, wherein the commutator is in sliding contact with the plurality of brushes,a plurality of winding coils wound on the rotor core and electrically connected to the commutator, andan insulating sleeve disposed between the output shaft and the rotor core and fixedly attached to the output shaft and the rotor core. |
| 地址 |
Murten CH |
