STATOR, BRUSHLESS DIRECT CURRENT MOTOR, THREE-PHASE SWITCH RELUCTANCE MOTOR AND SHADED POLE MOTOR

WIPO Patent Application WO/2016/004823

A1

A stator includes large tooth (1) and small tooth (2) that are periodically and alternately arranged. The arc distances between the central lines of the tooth body of the large tooth (1) equal to the arc distances between the central lines of the adjacent small tooth (2). A plurality of tooth grooves (3) are arranged between the large tooth (1) and the small tooth (2). The cambered surfaces of the tooth top of the large tooth (1) change according to the sine law. A large tooth cambered surface air gap (5) between the large teeth (1) and a rotor (10) is a sine gradient air gap with a small middle part and two large ends, and a small tooth cambered surface air gap (6) between the small teeth (2) and the rotor (10) is a uniform air gap and is larger than the air gap (5) at each of the two ends of each large tooth. Coils (W) are embedded in the tooth grooves (3) so that the iron cores forming each phase winding respectively comprise three tooth in which one small teeth (2), one large teeth (1) and one small teeth (2) are sequentially arranged. One shared small teeth (2) is arranged between each phase winding and the adjacent winding thereof, and the pole cambered surface air gap of each phase winding is distributed in a manner similar to the sine law. A round rotating magnetic field can be produced, and the pulsation phenomenon of the motor can be reduced.

GU MING (CN)

PCT/CN2015/082402

January 14, 2016

June 25, 2015

Click for automatic bibliography generation  

GU MING (CN)

H02K1/14

JP2002064949A	2002-02-28
CN102223041A	2011-10-19
CN201509142U	2010-06-16
CN104410177A	2015-03-11
CN104079085A	2014-10-01
CN104079137A	2014-10-01
CN104092345A	2014-10-08
CN104079136A	2014-10-01

BEYOND ATTORNEYS AT LAW (CN)
北京品源专利代理有限公司 (CN)

View/Download PDF      PDF Help

Previous Patent: METHOD AND APPARATUS FOR NETWORK SWITCHING

Next Patent: BRAKE MECHANISM