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. 23, 2021
Filed:
Dec. 22, 2017
Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai, Guangdong, CN;
Yusheng Hu, Guangdong, CN;
Bin Chen, Guangdong, CN;
Quanfeng Li, Guangdong, CN;
Wenjiao Sun, Guangdong, CN;
Bo Zhou, Guangdong, CN;
Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai, Guangdong, CN;
Abstract
Provided is a permanent magnet motor, comprising a rotor component and a stator component. The rotor component comprises alternating poles and permanent magnet poles alternately arranged in a circumferential direction. The stator component comprises stator teeth portions arranged and spaced apart in a circumferential direction on an inner circumferential side of the stator component. A first air gap is formed between an inner circumferential side of the stator teeth portion and an outer circumferential side of the permanent magnet pole. A second air gap is formed between the inner circumferential side of the stator teeth portion and an outer circumferential side of the alternating pole. An average thickness of the first air gap is δ1; an average thickness of the second air gap is δ2, wherein 0.4≤δ2/δ1≤0.9.