US 10,889,157 B2
Battery cooling system for vehicle
Jae Yeon Kim, Hwaseong-si (KR); Kilwoo Lee, Seoul (KR); Wan Je Cho, Hwaseong-si (KR); Tae Hee Kim, Hwaseong-si (KR); Gun Goo Lee, Suwon-si (KR); Boram Yang, Pyeongtaek-si (KR); Yeon Ho Kim, Seoul (KR); Dong Seok Oh, Hwaseong-si (KR); and Su Whan Kim, Hwaseong-si (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 Mar. 29, 2019, as Appl. No. 16/369,188.
Claims priority of application No. 10-2018-0156405 (KR), filed on Dec. 6, 2018.
Prior Publication US 2020/0180390 A1, Jun. 11, 2020
Int. Cl. B60H 1/00 (2006.01)
CPC B60H 1/00278 (2013.01) [B60H 1/00921 (2013.01); B60H 2001/00307 (2013.01); B60H 2001/00928 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A battery cooling system for a vehicle, the battery cooling system comprising:
a first cooling device including a first radiator and a first water pump connected through a first coolant line and circulating a first coolant in the first coolant line to cool at least one electrical component and at least one motor mounted on the first coolant line;
a second cooling device including a second radiator and a second water pump connected through a second coolant line and circulating a second coolant in the second coolant line;
a battery module mounted on a battery coolant line configured to be selectively connectable to the second coolant line through a valve mounted between the battery coolant line and the second coolant line; and
a chiller mounted on the battery coolant line and through which the second coolant passes, connected to a refrigerant line of an air conditioning device through a refrigerant connection line connected to the refrigerant line, and configured for making the second coolant which selectively flows exchange heat with a refrigerant supplied from the air conditioning device through the refrigerant connection line to control a temperature of the second coolant,
wherein a condenser provided in the air conditioning device is connected to each of the first and second coolant lines so that the first coolant circulated in the first coolant line and the second coolant circulated in the second coolant line pass through the first and second cooling devices, respectively,
wherein the refrigerant passing through the condenser via the refrigerant line exchanges heat with the first coolant supplied through the first coolant line and exchanges heat with the second coolant supplied through the second coolant line,
wherein the air conditioning device includes:
an HVAC module including an evaporator connected to the refrigerant line and having a door for controlling outside air passing through the evaporator to selectively flow to the evaporator;
a compressor connected to the evaporator through the refrigerant line;
a first expansion valve mounted on the refrigerant line connecting the condenser and the evaporator; and
a second expansion valve mounted on the refrigerant connection line, and wherein the valve selectively connects the second coolant line and the battery coolant line between the second radiator and the chiller,
wherein a first branch line, a first end of which is connected to the valve and a second end of which is mounted on a portion of the battery coolant line by bypassing the chiller and the battery module, is selectively connectable to the chiller and the battery module by operation of the valve, and
wherein a second branch line is mounted on first and second portions of the second coolant line by bypassing the valve and configured for separating the battery coolant line and the second coolant line.