US 11,742,720 B2
Motor provided with cooling system
Jae Hyeon Lee, Hwaseong-si (KR); Han Hee Park, Hwaseong-si (KR); Seong Min Kim, Changwon-si (KR); Hyun Woo Noh, Seoul (KR); Tae Il Yoo, Anyang-si (KR); and Ji Wan Cha, Incheon (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed on Jul. 6, 2020, as Appl. No. 16/921,157.
Claims priority of application No. 10-2019-0107016 (KR), filed on Aug. 30, 2019.
Prior Publication US 2021/0067006 A1, Mar. 4, 2021
Int. Cl. H02K 9/193 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01); B60K 11/02 (2006.01)
CPC H02K 9/193 (2013.01) [H02K 5/20 (2013.01); H02K 9/19 (2013.01); B60K 11/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A motor comprising:
a cooling system configured to cool a stator with coils wound on a stator core,
wherein the cooling system includes a plurality of spray pipes having a plurality of holes,
wherein the plurality of spray pipes sprays oil through the plurality of holes,
wherein the plurality of spray pipes is positioned between the stator and a housing of the motor, and
wherein the plurality of spray pipes includes pipes disposed at a center over the stator and at both sides spaced apart from each other in a circumferential direction of the stator from the center with predetermined gaps therebetween,
wherein the plurality of spray pipes includes:
a first pipe elongated forward and rearward at a left side above the stator;
a second pipe elongated forward and rearward at a right side above the stator; and
a third pipe elongated forward and rearward at the center above the stator,
wherein the plurality of holes is formed at a rear portion of each of the first pipe and the second pipe to spray the oil to a portion of the coils protruding rearward from a rear end of the stator core,
wherein the plurality of holes is formed at a front portion of each of the first pipe and the second pipe to spray the oil to a portion of the coils protruding forward from a front end of the stator core,
wherein one hole of the plurality of holes is formed at the rear portion of each of the first pipe and the second pipe,
wherein the one hole of the plurality of holes is formed to spray the oil at an angle,
wherein the first pipe and the second pipe are configured to spray the oil to a first portion of the stator, and the third pipe is configured to spray the oil to a part of the first portion and a second portion of the stator, wherein the second portion of the stator is different from the first portion of the stator, and
wherein the first pipe and the second pipe are configured to only spray the oil to a front portion and a rear portion of the stator, and the third pipe is configured to only spray the oil to a middle portion and the rear portion of the stator.