Title:
STATOR STRUCTURE, ELECTRIC MOTOR AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/108889
Kind Code:
A1
Abstract:
Provided in the present application are a stator structure, an electric motor and an electrical device. The stator structure comprises: a stator yoke portion; and at least two stator teeth which are arranged on the stator yoke portion, wherein a notch is formed between tooth tops of every two adjacent stator teeth, at least some of the stator teeth comprise at least two auxiliary teeth, a groove is formed between every two adjacent auxiliary teeth on the same stator tooth, and in a circumferential direction of the stator structure, the width of the groove is unequal to the width of the notch. By means of the stator structure provided in the present application, the size of the groove between every two adjacent auxiliary teeth and the size of the notch between every two adjacent stator teeth are set to be unequal, the degree of uniformity of the distribution of the auxiliary teeth on all the stator teeth in the circumferential direction can be changed, the period number of air gap magnetic conductance is reduced, and the magnetic density harmonic component is increased, so that the output torque of the electric motor is further improved.
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Inventors:
FENG YANLI (CN)
GE MENG (CN)
LI WENRUI (CN)
GE MENG (CN)
LI WENRUI (CN)
Application Number:
PCT/CN2022/077378
Publication Date:
June 22, 2023
Filing Date:
February 23, 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:
H02K1/14; H02K1/2788; H02K1/27915; H02K3/28; H02K3/52
Foreign References:
| CN113364155A | 2021-09-07 | |||
| CN105071620A | 2015-11-18 | |||
| US20110254402A1 | 2011-10-20 | |||
| CN216356127U | 2022-04-19 | |||
| CN114069911A | 2022-02-18 | |||
| CN110460182A | 2019-11-15 | |||
| JP2004304928A | 2004-10-28 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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