Title:
MOTOR STATOR, VARIABLE FREQUENCY MOTOR, AND MANUFACTURING METHOD FOR MOTOR STATOR
Document Type and Number:
WIPO Patent Application WO/2023/082263
Kind Code:
A1
Abstract:
Provided in the present invention is a motor stator (10), comprising: a stator core (11), and stator windings (12) mounted on the stator core (11). At least one stator winding (12) among the stator windings (12) is formed by connecting a plurality of forming wires (120) in series. At least one of the first forming wire (120) and the last forming wire (120) is formed by a first-type forming wire (121), and at least one forming wire (120) located between the first forming wire (120) and the last forming wire (120) is formed by a second-type forming wire (122). The first-type forming wire (121) is configured to have an insulating layer (124) having a stronger corona resistance than that of the second-type forming wire (122). Further provided are a corresponding variable frequency motor and a corresponding manufacturing method for the motor stator. According to the invention, a more reliable motor stator can be provided in a mode that is convenient to manufacture and cost-saving.
Inventors:
SUN AFANG (CN)
LIU XINHUA (CN)
LIU XINHUA (CN)
Application Number:
PCT/CN2021/130689
Publication Date:
May 19, 2023
Filing Date:
November 15, 2021
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
SUN AFANG (CN)
LIU XINHUA (CN)
SUN AFANG (CN)
LIU XINHUA (CN)
International Classes:
H02K3/40; H02K3/32
Domestic Patent References:
| WO2012114181A1 | 2012-08-30 |
Foreign References:
| US20200220408A1 | 2020-07-09 | |||
| KR20180057949A | 2018-05-31 | |||
| JPS63186540A | 1988-08-02 |
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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