US 12,115,833 B2
Cooling system for electric vehicles
Gun Goo Lee, Suwon-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on May 6, 2022, as Appl. No. 17/738,991.
Claims priority of application No. 10-2021-0085136 (KR), filed on Jun. 29, 2021.
Prior Publication US 2022/0410655 A1, Dec. 29, 2022
Int. Cl. F28F 19/00 (2006.01); B60H 1/00 (2006.01); B60K 11/04 (2006.01); B60L 58/26 (2019.01)
CPC B60H 1/00278 (2013.01) [B60K 11/04 (2013.01); B60L 58/26 (2019.02)] 11 Claims
OG exemplary drawing
 
1. A cooling system for a vehicle, the cooling system comprising:
a first cooling circuit configured to cool a battery by coolant that circulates in accordance with operation of a first circulation pump and exchanges heat with a first heat exchange module;
a second cooling circuit configured to cool a power electronic (PE) module by coolant that circulates in accordance with operation of a second circulation pump and exchanges heat with a second heat exchange module, the second cooling circuit being configured so that the coolant in the first cooling circuit circulates through the second cooling circuit; and
a reservoir tank, which is continuously connected to the first and second cooling circuits to remove air in the coolant flowing through each of the first and second cooling circuits in the reservoir tank; and
a first parallel circulation passage connected between a rear end portion of the first heat exchange module and a front end portion of the first circulation pump;
a second parallel circulation passage connected between a rear end portion of the second heat exchange module and a front end portion of the second circulation pump; and
a series circulation passage connected between the first parallel circulation passage and the second parallel circulation passage,
wherein the reservoir tank is disposed on the series circulation passage.