MOTOR ASSEMBLY AND CLEANER COMPRISING SAME

WIPO Patent Application WO/2021/251604

A1

A motor assembly is disclosed. The motor assembly according to the present disclosure comprises: a motor having a rotary shaft; an impeller connected to the rotary shaft; a housing disposed between the impeller and the motor and surrounding the upper side of the motor; a diffuser for discharging air, which is suctioned by the impeller, along the outer surface of the housing; and a heat dissipation cover covering the outer surface of the motor, wherein the heat dissipation cover comprises: an inner cover disposed to be spaced apart from the outer surface of the motor and forming an inside-cover flow channel along which air flows through the spacing therebetween; and an outer cover having a diameter greater than that of the inner cover and forming an outside-cover flow channel through which air flows along the outer surface thereof.

JPH0622496	SHAFT COUPLING FOR DYNAMO-ELECTRIC MACHINE
WO/2011/026792	CONTROLLABLE DIRECT CURRENT MOTOR WITH A MODIFIED CHARACTERISTIC CURVE
JP2010045905	MOTOR INTEGRATED MAGNETIC BEARING APPARATUS

HWANG WOONG (KR)
KIM HYUNJOO (KR)
PARK TAESANG (KR)
KANG WONSOO (KR)
KIM JIMIN (KR)
CHO KEEYEON (KR)
HAN JINWOO (KR)

PCT/KR2021/004553

December 16, 2021

April 12, 2021

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SAMSUNG ELECTRONICS CO LTD (KR)

H02K7/14; A47L9/22; A47L9/28; H02K1/16; H02K1/20; H02K9/02

KR20190003259A	2019-01-09
JP4846073B1	2011-12-28
CN209516803U	2019-10-18
JPH09149599A	1997-06-06
JP2018084151A	2018-05-31

KIM, Tae-hun et al. (KR)

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