US 12,316,191 B2
Fan motor
Cheol Han, Seoul (KR); Yongdae Kim, Seoul (KR); and Giyeob Yang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/018,104
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 1, 2021, PCT No. PCT/KR2021/004039
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/035015, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 10-2020-0101319 (KR), filed on Aug. 12, 2020.
Prior Publication US 2023/0268796 A1, Aug. 24, 2023
Int. Cl. H02K 5/20 (2006.01); H02K 5/173 (2006.01); H02K 5/22 (2006.01); H02K 7/08 (2006.01); H02K 9/06 (2006.01)
CPC H02K 5/207 (2021.01) [H02K 5/1732 (2013.01); H02K 5/225 (2013.01); H02K 7/083 (2013.01); H02K 9/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fan motor comprising:
a housing:
a vane hub accommodated in the housing;
a stator mounted inside the vane hub and having a stator core, stator coils wound around the stator core, each stator coil having a power line extending therefrom, and an insulator insulating the stator core from the stator coils;
a rotor rotatably installed inside the stator;
a shaft coupled to the rotor to be rotatable; and
a lower bracket coupled to the insulator, the lower bracket comprising:
a plurality of power line lead-out holes extending through the lower bracket, such that the power lines extending from the stator coils are inserted therethrough; and
a plurality of air holes configured to suction air toward the stator,
wherein the vane hub includes a plurality of heat dissipation holes extending through the vane hub such that air passing through the stator is discharged,
wherein each of the plurality of heat dissipation holes overlaps a respective air hole of the plurality of air holes in an up and down direction, and
wherein a total cross-sectional area of the plurality of air holes is equal to a total cross-sectional area of the plurality of heat dissipation holes, so as to reduce air resistance while the air flows into the stator.