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:
Nov. 22, 2016
Filed:
Aug. 31, 2011
Hui Huang, Guangdong, CN;
Yusheng HU, Guangdong, CN;
Dongsuo Chen, Guangdong, CN;
Huajie Chen, Guangdong, CN;
Yong Xiao, Guangdong, CN;
Xueying Zeng, Guangdong, CN;
Wenming Zhang, Guangdong, CN;
Hui Huang, Guangdong, CN;
Yusheng Hu, Guangdong, CN;
Dongsuo Chen, Guangdong, CN;
Huajie Chen, Guangdong, CN;
Yong Xiao, Guangdong, CN;
Xueying Zeng, Guangdong, CN;
Wenming Zhang, Guangdong, CN;
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, Guangdong, CN;
Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai, Zhuhai, Guangdong, CN;
Abstract
A permanent magnet synchronous electric machine includes a stator and a rotor. Multiple wire grooves are provided peripherally on the stator, coils are provided within the wire grooves, and a stator tooth is provided between adjacent wire grooves. Multiple magnetic groove sets are provided peripherally within the rotor, each of the magnetic groove sets includes at least two magnetic steel grooves, with permanent magnets placed within the magnetic steel grooves, and a magnetic tunnel formed between the magnetic steel grooves. Of two adjacent magnetic tunnels, an end of one magnetic tunnel is opposite a wire groove and an end of the other magnetic tunnel is opposite a stator tooth. The permanent magnet synchronous electric machine has a more steady output torque, and also reduces the noise and vibration provided during operation.