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:
Sep. 22, 2026
Filed:
Nov. 28, 2023
Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;
Nanjing University of Science and Technology, Nanjing, CN;
Weiwei Geng, Nanjing, CN;
Chaoqiang Wu, Shenzhen, CN;
Jinhua Chen, Dongguan, CN;
Zhao Zhou, Dongguan, CN;
Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;
Nanjing University of Science and Technology, Nanjing, CN;
Abstract
A motor rotor, a drive motor, and an electric vehicle are provided. In the motor rotor, a rotor core with at least two protruding components is provided. At least two magnetic steels and at least two sheets are disposed in grooves between the at least two protruding components and then coupled to the rotor core with a rotor pressing plate. In addition, one SMC sheet is stacked on each of the magnetic steels, so that an eddy current loss of a permanent magnet can be effectively reduced. Each of the magnetic steels is disposed in a groove between protruding components, and the SMC sheet is added, so that a saliency ratio is increased, a reluctance torque ratio is increased, and a quantity of magnetic steels for use is reduced.