The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Aug. 18, 2016
Johnson Electric International Ag, Murten, CH;
Yue Li, Hong Kong, CN;
Kwong Yip Poon, Hong Kong, CN;
Chui You Zhou, Shenzhen, CN;
Jie Chai, Shenzhen, CN;
Wen Liang Li, Shenzhen, CN;
Lin Ping Gui, Shenzhen, CN;
Tao Zhang, Shenzhen, CN;
Qiang Zhou, Shenzhen, CN;
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Abstract
A fluid generating device and an electric apparatus utilizing the fluid generating device are provided. The fluid generating device includes a motor and an impeller driven by the motor. The motor is a single phase direct current brushless motor which includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, a pole shoe formed at the tooth. Slot openings are formed between the pole shoes. The rotor is received in a receiving chamber defined by the pole shoes. Inner surfaces of the pole shoes and the rotor form therebetween a substantially even air gap. The presence of even air gap can reduce the cogging torque of the motor, thus reducing the startup current and noise of the motor.