Title:
ROTOR ASSEMBLY, MOTOR, AND ELECTRICAL EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2023/108910
Kind Code:
A1
Abstract:
The present application provides a rotor assembly, a motor, and electrical equipment. The rotor assembly comprises: a magnetically conductive hub frame, the magnetically conductive hub frame comprising an end cover portion and an annular yoke portion, the end cover portion being connected to the axial end of the annular yoke portion, and the inner peripheral wall of the annular yoke portion being provided with a plurality of accommodating portions, the plurality of accommodating portions being distributed along the circumferential direction of the annular yoke portion; and a plurality of permanent magnets respectively disposed in the plurality of accommodating portions, and the polarities of the plurality of permanent magnets being the same. By means of the rotor assembly of the present application, the annular yoke portion and the end cover portion connected to the axial end of the annular yoke portion are provided, thereby improving the overall structural strength of the magnetically conductive hub frame; the inner peripheral wall of the annular yoke portion is provided with the plurality of accommodating portions, and the plurality of permanent magnets having the same polarity are disposed in the plurality of accommodating portions, so as to produce a consequent-pole magnetic structure on the annular yoke portion, thereby reducing the number of permanent magnets used, reducing the manufacturing difficulty of a consequent-pole rotor, enhancing the magnetic field modulation effect, and increasing the amplitude of a working magnetic order flux density harmonic.
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Inventors:
LI WENRUI (CN)
GE MENG (CN)
FENG YANLI (CN)
GE MENG (CN)
FENG YANLI (CN)
Application Number:
PCT/CN2022/078988
Publication Date:
June 22, 2023
Filing Date:
March 03, 2022
Export Citation:
Assignee:
WELLING WUHU MOTOR MFG CO LTD (CN)
MIDEA WELLING MOTOR TECH SHANGHAI CO LTD (CN)
MIDEA WELLING MOTOR TECH SHANGHAI CO LTD (CN)
International Classes:
H02K1/30; H02K1/14; H02K1/16; H02K1/27915; H02K3/52
Foreign References:
| CN114069924A | 2022-02-18 | |||
| CN104969446A | 2015-10-07 | |||
| CN202309462U | 2012-07-04 | |||
| CN113364155A | 2021-09-07 | |||
| CN107124053A | 2017-09-01 | |||
| JP2012023861A | 2012-02-02 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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