BRUSHLESS DIRECT-CURRENT MOTOR

WIPO Patent Application WO/2023/213005

A1

The present utility model relates to the technical field of motors and discloses a brushless direct-current motor. The brushless direct-current motor comprises an inline unfolding type rolling stator coil assembly, a rotor assembly, and an integrally-formed motor housing; a circular hollow inner cavity for accommodating the inline unfolding type rolling stator coil assembly is formed in the motor housing; the inline unfolding type rolling stator coil assembly is fixed in the circular hollow inner cavity; a front cover is further arranged in the motor housing; coaxial and up-to-down through middle shaft holes are formed in the front cover and the inline unfolding type rolling stator coil assembly; and the rotor assembly passes through the middle shaft holes to enable the inline unfolding type rolling stator coil assembly, the rotor assembly, and the motor housing to form an integral component. The present utility model has the following advantages: the inline unfolding type rolling stator coil assembly can be unfolded for winding, the slot fill factor of a stator coil is effectively improved, the wire diameter and the matched reasonable current density can also be conveniently adjusted according to the power level of the motor, the temperature rise of the stator coil is reduced, the failure rate of a product is reduced, and the service life of the product is prolonged.

LUO LINHUA (CN)
GUANG MINGYU (CN)
GUANG ZHEJUN (CN)

PCT/CN2022/104488

November 09, 2023

July 08, 2022

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GUANGZHOU CITY KUN CHI MOTOR CO LTD (CN)

H02K3/46

WO2018120452A1

2018-07-05

CN217508403U	2022-09-27
CN205647221U	2016-10-12
CN209375318U	2019-09-10
CN210111750U	2020-02-21
CN208522566U	2019-02-19

SHENZHOU INTELLECTUAL PROPERTY LAW FIRM (CN)

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