US 11,780,287 B2
Thermal management system and electric vehicle having the same
Xiaohui Li, Sunnyvale, CA (US); Qin Yang, Sunnyvale, CA (US); and Bozhi Yang, Sunnyvale, CA (US)
Assigned to GUANGZHOU AUTOMOBILE GROUP CO., LTD., Guangzhou (CN)
Filed by GUANGZHOU AUTOMOBILE GROUP CO., LTD., Guangzhou (CN)
Filed on Jun. 24, 2021, as Appl. No. 17/357,674.
Prior Publication US 2022/0410653 A1, Dec. 29, 2022
Int. Cl. B60H 1/00 (2006.01); B60H 1/32 (2006.01)
CPC B60H 1/00278 (2013.01) [B60H 1/00035 (2013.01); B60H 1/00485 (2013.01); B60H 1/00907 (2013.01); B60H 1/323 (2013.01); B60L 2240/425 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermal management system usable in an electric vehicle, comprising:
a refrigerant loop comprising a compressor, a condenser, an evaporator, and a heat exchanger, the compressor selectively communicating with at least two of the condenser, the evaporator, and the heat exchanger, thereby facilitating a refrigerant to circulate in the refrigerant loop;
a battery coolant loop comprising a power supply system and a first bypass path connected to the heat exchanger;
a motor coolant loop comprising a powertrain system, a radiator, and a second bypass path connected to the radiator; and
a valve package configured for connecting the refrigerant loop, the battery coolant loop, and the motor coolant loop, the valve package comprising ten outer ports and eight inner channels, wherein three of the ten outer ports are connected to the heat exchanger, one of the three of the ten outer ports also being connected to the first bypass path, wherein two of the ten outer ports are connected to the power supply system, wherein two of the ten outer ports are connected to the powertrain system, wherein three of the ten outer ports are connected to the radiator, one of the three of the ten outer ports also being connected to the second bypass path, and wherein the valve package is arranged to allow eight of the ten outer ports to selectively communicate with four of the eight inner channels, thereby facilitating a coolant to circulate in the battery coolant loop and the motor coolant loop.
 
20. An electric vehicle comprising:
a passenger cabin; and
a thermal management system comprising:
a refrigerant loop comprising a compressor, a condenser, an evaporator, and a heat exchanger, the compressor selectively communicating with at least two of the condenser, the evaporator, and the heat exchanger, thereby facilitating a refrigerant to circulate in the refrigerant loop;
a battery coolant loop comprising a power supply system and a first bypass path connected to the heat exchanger;
a motor coolant loop comprising a powertrain system, a radiator, and a second bypass path connected to the radiator; and
a valve package configured for connecting the refrigerant loop, the battery coolant loop, and the motor coolant loop, the valve package comprising ten outer ports and eight inner channels, wherein three of the ten outer ports are connected to the heat exchanger, one of the three of the ten outer ports also being connected to the first bypass path, wherein two of the ten outer ports are connected to the power supply system, wherein two of the ten outer ports are connected to the powertrain system, wherein three of the ten outer ports are connected to the radiator, one of the three of the ten outer ports also being connected to the second bypass path, and wherein the valve package is arranged to allow eight of the ten outer ports to selectively communicate with four of the eight inner channels, thereby facilitating a coolant to circulate in the battery coolant loop and the motor coolant loop.