US 12,090,816 B2
Heat pump system for vehicle
Jae Yeon Kim, Hwaseong-si (KR); Wan Je Cho, Hwaseong-si (KR); Heung Seok Seo, Yongin-si (KR); Seong Bin Jeong, Hwaseong-si (KR); Yeonho Kim, Seoul (KR); Jeawan Kim, Gwangmyeong-si (KR); Sangmoon Cho, Anyang-si (KR); SeungRyeol Lee, Hwaseong-si (KR); and Jieun Kim, Yongin-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 Oct. 29, 2021, as Appl. No. 17/514,375.
Claims priority of application No. 10-2021-0057606 (KR), filed on May 4, 2021.
Prior Publication US 2022/0355650 A1, Nov. 10, 2022
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01)
CPC B60H 1/3205 (2013.01) [B60H 1/00278 (2013.01); B60H 1/00328 (2013.01); B60H 1/00385 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A heat pump system for a vehicle, comprising:
a cooling apparatus configured to include a radiator connected to a coolant line and a first water pump, and to circulate a coolant in the coolant line to cool at least one heating element provided in the coolant line;
a battery cooling apparatus configured to include a second water pump connected to a battery coolant line and a battery module, and to circulate the coolant in the battery module; and
a chiller connected to the battery cooling apparatus, and connected with a refrigerant line of an air conditioner apparatus through a refrigerant connection line, to adjust a temperature of the coolant by heat-exchanging the coolant circulated in the battery coolant line with a refrigerant selectively supplied from the air conditioner apparatus,
wherein the air conditioner apparatus includes a main heat exchanger, which is connected to the coolant line, and condenses or evaporates the refrigerant through heat exchange with the coolant supplied through the coolant line depending on a cooling mode or at least one heating mode of the vehicle,
the air conditioner apparatus further includes a bypass line connected to the refrigerant line through a refrigerant valve to selectively introduce the refrigerant that has passed through the main heat exchanger into a compressor, and
the at least one heating mode is operated by selectively using the heating element, outside air, or waste heat of the battery module.