US 11,920,287 B2
Clothes dryer configured for motor cooling
Hyuksoo Lee, Seoul (KR); Hongjun Cho, Seoul (KR); Hyojun Kim, Seoul (KR); Yangguk Hwang, Seoul (KR); Hyeonjoong Kim, Seoul (KR); Oshin Kwon, Seoul (KR); Minji Kim, Seoul (KR); and Yeonju Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Sep. 3, 2021, as Appl. No. 17/466,656.
Claims priority of application No. 10-2020-0113131 (KR), filed on Sep. 4, 2020; application No. 10-2020-0113132 (KR), filed on Sep. 4, 2020; and application No. 10-2020-0113133 (KR), filed on Sep. 4, 2020.
Prior Publication US 2022/0074107 A1, Mar. 10, 2022
Int. Cl. D06F 58/20 (2006.01); D06F 58/02 (2006.01); D06F 58/08 (2006.01); H02K 1/30 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 7/14 (2006.01); H02K 9/06 (2006.01); H02K 21/22 (2006.01)
CPC D06F 58/20 (2013.01) [D06F 58/02 (2013.01); D06F 58/08 (2013.01); H02K 1/30 (2013.01); H02K 7/085 (2013.01); H02K 7/116 (2013.01); H02K 7/14 (2013.01); H02K 9/06 (2013.01); H02K 21/22 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A dryer comprising:
a drum comprising:
a drum body that defines a space configured to receive clothes,
a front cover that defines a front surface of the drum body, the front cover defining a drum inlet in communication with the space of the drum body, and
a rear cover that defines a rear surface of the drum body, the rear cover defining an air inlet;
a fixing panel spaced apart from the rear cover of the drum, the fixing panel defining a first cooling hole and a second cooling hole that are spaced apart from each other;
a motor comprising a stator fixed to the fixing panel and a rotor configured to rotate relative to the stator, the motor being configured to rotate the drum based on the rotor rotating relative to the stator, wherein the fixing panel further defines a plurality of supply holes arranged along an outer circumferential surface of the motor and configured to guide air to the air inlet of the rear cover;
a supply duct fixed to the fixing panel and configured to guide air to the plurality of supply holes, the supply duct having a ring shape and defining an accommodating space that accommodates the motor; and
a duct cover that is disposed at a rear side of the fixing panel, the duct cover defining a cooling passage that connects the first cooling hole, the accommodating space, and the second cooling hole and is configured to cool the motor in the accommodating space by circulating air through the first cooling hole, the accommodating space, and the second cooling hole,
wherein the first cooling hole is defined at a lower part of the fixing panel relative to the accommodating space, and
wherein the second cooling hole is defined at an upper part of the fixing panel relative to the accommodating space.