US 11,670,990 B2
Stator assembly and hairpin winding motor including the same
Seong Jun Hwang, Yongin-si (KR); Yeong Woo Seo, Yongin-si (KR); and Hye Seong Yang, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Jan. 29, 2021, as Appl. No. 17/248,609.
Claims priority of application No. 10-2020-0019211 (KR), filed on Feb. 17, 2020.
Prior Publication US 2021/0257885 A1, Aug. 19, 2021
Int. Cl. H02K 9/22 (2006.01); F28D 15/02 (2006.01); H02K 3/28 (2006.01); H02K 9/20 (2006.01); H02K 9/19 (2006.01)
CPC H02K 9/225 (2021.01) [F28D 15/0275 (2013.01); H02K 3/28 (2013.01); H02K 9/19 (2013.01); H02K 9/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A stator assembly comprising:
a stator core including teeth, which are formed along an inner circumferential surface of the stator core, extend from one surface of the stator core to an opposite surface of the stator core, and have through holes formed through one surfaces of the teeth, respectively;
a plurality of hairpins, each hairpin coupled to and connected with a slot formed between the teeth and configured to form a coil winding; and
a heat radiating device including a first heat radiating member provided at one side of the one surface of the stator core and configured to discharge heat of the hairpin to an outside, such that the hairpin is cooled,
wherein the first heat radiating member includes:
a first heat pipe configured to discharge the heat of the hairpin, which is provided in the stator core, to the outside such that the hairpin is cooled, and provided at the one side of the one surface of the stator core; and
a first fixing member configured to fix the first heat pipe to the stator core,
wherein the first heat pipe includes:
a plurality of first heat parts inserted into the through holes of the teeth, which are formed at the one side of the one surface of the stator core, respectively, and configured to absorb the heat of the hairpins coupled to the slots through the teeth;
a first connection part provided at the one side of the one surface of the stator core and configured to connect the plurality of first heat parts, which are inserted into the through holes, with each other and to absorb heat of the first heat parts; and
a first discharge part provided at the first connection part and configured to discharge heat of the first connection part to the outside.