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. 22, 2023
Filed:
May. 06, 2021
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, CN;
Jinxin Jia, Zhuhai, CN;
Xiaobo Zhang, Zhuhai, CN;
Jianning Liu, Zhuhai, CN;
Fang Zhang, Zhuhai, CN;
Qiong Wei, Zhuhai, CN;
Guanghai Li, Zhuhai, CN;
Liming Peng, Zhuhai, CN;
Bowen Xiong, Zhuhai, CN;
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai, CN;
Abstract
Disclosed are a motor rotor and a permanent magnet motor. The motor rotor includes: a rotating shaft; a magnetic layer fixedly sleeved on the rotating shaft; a first heat diffusion layer wrapped on an outer surface of the magnetic layer away from the rotating shaft for preventing a shielding layer from overheating locally; and the shielding layer wrapped on a surface of the first heat diffusion layer away from the magnetic layer. The first heat diffusion layer is provided between the shielding layer and the magnetic layer of the motor rotor, so that the first heat diffusion layer can prevent the shielding layer and the magnetic layer from overheating locally, and improve heat dissipation efficiency of the shielding layer.