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:
Dec. 26, 2023
Filed:
Sep. 02, 2019
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, CN;
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai, CN;
Abstract
A motor rotor structure including a rotor core. Multiple first permanent magnet slots are disposed in the rotor core in a circumferential direction. At least one second permanent magnet slot is disposed between every two adjacent first permanent magnet slots; each of the first permanent magnet slots and an adjacent second permanent magnet slot thereof are spaced a preset distance apart. Between two kinds of permanent magnets having different coercivities, a first kind of permanent magnet is mounted in each of the first permanent magnet slots and a second kind of permanent magnet is mounted in the second permanent magnet slot. When identical polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a more-magnetic-pole state. When contrary polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a fewer-magnetic-pole state.