Title:
ELECTRIC POWER TOOL, MOTOR, AND ROTOR THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/203909
Kind Code:
A1
Abstract:
An electric power tool, a motor, and a rotor thereof. The rotator (1) comprises a housing (12), a rotating shaft (11) fixed on the housing (12), a magnetic yoke (14) housed in the housing (12), and a permanent magnet (15) mounted on the magnetic yoke (14); the housing (12) comprises a bottom wall (121) and a side wall (120) which extends from the outer periphery of the bottom wall (121) along the axial direction of the rotor (1); the rotor (1) further comprises a cooling fan (13), and the cooling fan (13) is located at the axial tail end of the side wall (120) away from the bottom wall (121); the rotating shaft (11), the magnetic yoke (14), the permanent magnet (15), the cooling fan (13), and the housing (12) are formed into an undetachable whole in an overmolding manner.
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Inventors:
MA QUANTONG (CN)
CHAU MINGWAI (CN)
MADRID ALLAN (CN)
ZHAO ANPING (CN)
CHAU MINGWAI (CN)
MADRID ALLAN (CN)
ZHAO ANPING (CN)
Application Number:
PCT/CN2021/080437
Publication Date:
October 14, 2021
Filing Date:
March 12, 2021
Export Citation:
Assignee:
JOHNSON ELECTRIC GUANGDONG CO LTD (CN)
International Classes:
H02K1/27; H02K3/50; H02K5/04; H02K5/20; H02K9/06
Foreign References:
| CN101170266A | 2008-04-30 | |||
| CN110829654A | 2020-02-21 | |||
| CN110784129A | 2020-02-11 | |||
| CN102687378A | 2012-09-19 | |||
| CN101087077A | 2007-12-12 | |||
| CN110679065A | 2020-01-10 | |||
| US20190334409A1 | 2019-10-31 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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