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. 16, 2021
Filed:
Dec. 12, 2016
Guangdong Welling Motor Manufacturing Co., Ltd., Guangdong, CN;
Midea Welling Motor Technology (Shanghai) Co., Ltd., Shanghai, CN;
Di Wu, Shanghai, CN;
Jintao Chen, Shanghai, CN;
Ziqiang Zhu, Shanghai, CN;
Yiming Hu, Shanghai, CN;
Hongxiao Wang, Shanghai, CN;
GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD., Guangdong, CN;
MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
An electric motor () includes an excitation stator (), a salient-pole rotor () and an excitation rotor (), any two of the excitation stator (), the salient-pole rotor () and the excitation rotor () being rotatable relative to each other; and a switching actuator () configured to select at least one of the salient-pole rotor () and the excitation rotor () to serve as a rotor rotatable relative to the excitation stator () by selectively fixing relative positions of two of the excitation stator (), the salient-pole rotor () and the excitation rotor ().