US 12,251,987 B2
Heat pump system for vehicle
Myunghwan Kim, Suwon-si (KR); Jai Young An, Suwon-si (KR); Namho Park, Suwon-si (KR); Wan Je Cho, Hwaseong-si (KR); Eon Soo Yun, Hwaseong-si (KR); Seong-Bin Jeong, Hwaseong-si (KR); Yeonho Kim, Seoul (KR); Seongjae Lee, Suncheon-si (KR); Jae Yeon Kim, Hwaseong-si (KR); and Myung Hyuk Kim, 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 Sep. 23, 2022, as Appl. No. 17/951,269.
Claims priority of application No. 10-2022-0056385 (KR), filed on May 9, 2022.
Prior Publication US 2023/0356566 A1, Nov. 9, 2023
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01)
CPC B60H 1/3213 (2013.01) [B60H 1/00007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat pump system for a vehicle, the heat pump system comprising:
a first cooling apparatus configured to circulate a first coolant in a first coolant line to control a temperature of an electrical component;
a second cooling apparatus configured to circulate a second coolant in a second coolant line to control a temperature of a battery module;
a third cooling apparatus configured to circulate a third coolant in a third coolant line to control a temperature of an autonomous driving controller; and
an air conditioning device configured to circulate a refrigerant along a first refrigerant line to control an indoor temperature of the vehicle, the air conditioning device comprising
a compressor;
a condenser;
a first expansion valve;
an evaporator, the compressor, the condenser, the first expansion valve, and the evaporator being connected through the first refrigerant line;
a first chiller connected to the first refrigerant line through a second refrigerant line, connected to the second coolant line, and configured to heat-exchange the second coolant selectively inflowed with the refrigerant supplied through the second refrigerant line to control a temperature of the second coolant;
a second chiller connected to the first refrigerant line through a third refrigerant line, connected to the third coolant line, and configured to heat-exchange the third coolant selectively inflowed with the refrigerant supplied through the third refrigerant line to control a temperature of the third coolant; and
a connection line having a first end connected to the first refrigerant line through the first valve and a second end connected to the third refrigerant line at a front end of the second chiller.