US 12,424,907 B2
Oil-cooled motor cooling system, and vehicle
Cunxing Gu, Wuhu (CN); Lizhen Geng, Wuhu (CN); Zhiguang Zhou, Wuhu (CN); and Yanan Li, Wuhu (CN)
Assigned to CHERY AUTOMOBILE CO., LTD., Wuhu (CN)
Appl. No. 18/257,434
Filed by CHERY AUTOMOBILE CO., LTD., Wuhu (CN)
PCT Filed Oct. 12, 2021, PCT No. PCT/CN2021/123354
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2022/134746, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011562372.5 (CN), filed on Dec. 25, 2020.
Prior Publication US 2024/0258881 A1, Aug. 1, 2024
Int. Cl. H02K 1/32 (2006.01); H02K 3/24 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01)
CPC H02K 9/19 (2013.01) 20 Claims
OG exemplary drawing
 
1. An oil-cooled motor cooling system, comprising:
a motor, an oil collection assembly, and
an oil spraying pipe;
wherein the oil spraying pipe is disposed over the oil collection assembly, a plurality of oil spraying holes with openings facing towards the oil collection assembly are arranged in the oil spraying pipe, and the oil spraying pipe is configured to spray cooling oil to the oil collection assembly through the plurality of oil spraying holes; and
wherein the oil collection assembly comprises a first oil collection tray and a second oil collection tray, wherein the first oil collection tray and the second oil collection tray are respectively disposed over a first end and a second end of a stator winding of the motor, each of the first oil collection tray and the second oil collection tray is in an arc shape matching the stator winding in shape, a plurality of first through holes are arranged in the first oil collection tray, a plurality of second through holes are arranged in the second oil collection tray, and the oil collection assembly is configured to cause the cooling oil sprayed from the oil spraying pipe to flow to the stator winding through the plurality of first through holes and the plurality of second through holes;
the first oil collection tray comprises a first arc tray body, two first arc side edges, and a plurality of first partition ribs, wherein the two first arc side edges are respectively disposed on two sides of the first arc tray body and protrude in a direction away from the stator winding, and the plurality of first partition ribs are evenly connected between the two first arc side edges, such that a plurality of first oil collection partitions are formed on the first arc tray body, wherein the plurality of first through holes are arranged in each of the plurality of first oil collection partitions; and
three first through holes are arranged in each of the plurality of first oil collection partitions, wherein an isosceles triangle is formed by connecting centers of the three first through holes, and two of the three first through holes are close to lower edges of the first oil collection partitions thereof.