Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/001258
Kind Code:
A1
Abstract:
Provided is a motor, comprising: a cover body (110), the cover body (110) comprising a bottom wall (111) and a side wall (112), the side wall (112) being connected to the bottom wall (111), a cavity being defined by the side wall (112) and the bottom wall (111), and the bottom wall (111) being provided with first heat dissipation holes (113) in communication with the cavity; a stretching part (120), connected to the cover body (110); a bearing housing (130), connected to the stretching part (120), the stretching part (120) being attached in the axial direction of the motor to the outer wall of the bearing housing (130); a rotating shaft (600), the rotating shaft (600) passing through the bearing housing (130); a stator (300), connected to the cover body (110); and a rotor (400), sleeving the rotating shaft (600), the internal diameter of the bearing housing (130) being D1, the sum of the wall thicknesses of the stretching part (120) and the bearing housing (130) being T, the minimum distance between the inner side wall of a first heat dissipation hole (113) and the axis of the bearing housing (130) being A, and A≥D1/2+T. The stretching part (120) is attached to the outer wall of the bearing housing (130) so as to get close to the axis of the cover body (110) as much as possible. Thus, the first heat dissipation holes (113) on the cover body (110) can get close to the axis of the cover body (110) as much as possible, so that a heat exchange can be quickly conducted between heat around the rotor (400) and the outside via the first heat dissipation holes (113).
Inventors:
LIU YE (CN)
GUO BINGCHUN (CN)
WU DI (CN)
ZHANG BING (CN)
GUO BINGCHUN (CN)
WU DI (CN)
ZHANG BING (CN)
Application Number:
PCT/CN2023/078723
Publication Date:
January 04, 2024
Filing Date:
February 28, 2023
Export Citation:
Assignee:
HUAIAN WELLING MOTOR MFG CO LTD (CN)
FOSHAN WELLING WASHER MOTOR MFG CO LTD (CN)
FOSHAN WELLING WASHER MOTOR MFG CO LTD (CN)
International Classes:
H02K5/20
Domestic Patent References:
| WO2021116040A1 | 2021-06-17 |
Foreign References:
| CN115118061A | 2022-09-27 | |||
| CN203135620U | 2013-08-14 | |||
| CN113794329A | 2021-12-14 | |||
| CN204835757U | 2015-12-02 | |||
| DE102018206138A1 | 2019-10-24 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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