Air conditioning system of vehicle, and vehicle

Patent metadata

Field	Value
Publication number	US-2025332887-A1
Application number	US-202519260322-A
Country	US
Kind code	A1
Filing date	Jul 4, 2025
Priority date	Mar 6, 2023
Publication date	Oct 30, 2025
Grant date	—

Abstract

Provided are an air conditioning system of a vehicle, and a vehicle. The air conditioning system of the vehicle includes: a compressor, a condenser, and an evaporator; a first throttle valve; and a heat exchange tube assembly including a first heat exchange tube and a second heat exchange tube. The first heat exchange tube is selectively in communication with the evaporator. The second heat exchange tube is selectively in communication with the first throttle valve. A heat exchange medium in the first heat exchange tube exchanges heat with the heat exchange medium in the second heat exchange tube to reduce a temperature of the heat exchange medium flowing from the condenser to the evaporator, and increase the temperature of the heat exchange medium flowing from the evaporator to the compressor.

First claim

What is claimed is:

1 . An air conditioning system ( 100 ) of a vehicle, the air conditioning system ( 100 ) comprising:
a compressor ( 101 ), a condenser ( 102 ), and an evaporator ( 103 ), the compressor ( 101 ), the condenser ( 102 ), and the evaporator ( 103 ) being adapted to be in communication with each other sequentially in series through a pipeline; a first throttle valve ( 201 ) adapted to establish communication between the condenser ( 102 ) and the evaporator ( 103 ), an opening of the first throttle valve ( 201 ) being adjustable to change a temperature and a pressure of a heat exchange medium passing through the first throttle valve ( 201 ); and a heat exchange tube assembly ( 30 ) comprising a first heat exchange tube and a second heat exchange tube, wherein:
one of the first heat exchange tube and the second heat exchange tube is sleeved outside another of the first heat exchange tube and the second heat exchange tube;
the first heat exchange tube is in communication with a liquid inlet end of the compressor ( 101 ) and selectively in communication with the evaporator ( 103 ); and
the second heat exchange tube is in communication with the condenser ( 102 ) and selectively in communication with the first throttle valve ( 201 );
wherein the heat exchange medium in the first heat exchange tube exchanges heat with the heat exchange medium in the second heat exchange tube to reduce the temperature of the heat exchange medium flowing from the condenser ( 102 ) to the evaporator ( 103 ), and increase the temperature of the heat exchange medium flowing from the evaporator ( 103 ) to the compressor ( 101 ).

2 . The air conditioning system ( 100 ) according to claim 1 , further comprising:
a first communication flow path ( 401 ) configured to establish communication between the compressor ( 101 ) and the condenser ( 102 ), the first communication flow path ( 401 ) being provided with a first communication valve ( 501 ), the first communication valve ( 501 ) being adapted to control selective communication between the compressor ( 101 ) and the condenser ( 102 ); and a second communication flow path ( 402 ) configured to establish communication between the first heat exchange tube and the evaporator ( 103 ), the second communication flow path ( 402 ) being provided with a second communication valve ( 502 ), the second communication valve ( 502 ) being adapted to control selective communication between the first heat exchange tube and the evaporator ( 103 ).

3 . The air conditioning system ( 100 ) according to claim 2 , further comprising:
a third communication flow path ( 403 ) configured to establish communication between the first communication flow path ( 401 ) and the second communication flow path ( 402 ), the third communication flow path ( 403 ) being disposed at a side of the first communication valve ( 501 ) close to the condenser ( 102 ) and a side of the second communication valve ( 502 ) close to the heat exchange tube assembly ( 30 ), and the third communication flow path ( 403 ) being provided with a third communication valve ( 503 ), the third communication valve ( 503 ) being adapted to control selective communication between the first communication flow path ( 401 ) and the second communication flow path ( 402 ); and a fourth communication flow path ( 404 ) configured to establish communication between the first communication flow path ( 401 ) and the second communication flow path ( 402 ), the fourth communication flow path ( 404 ) being disposed at a side of the first communication valve ( 501 ) close to the compressor ( 101 ) and a side of the second communication valve ( 502 ) close to the evaporator ( 103 ), and the fourth communication flow path ( 404 ) being provided with a fourth communication valve ( 504 ), the fourth communication valve ( 504 ) being adapted to control selective communication between the first communication flow path ( 401 ) and the second communication flow path ( 402 ).

4 . The air conditioning system ( 100 ) according to claim 2 , further comprising:
a liquid gas cooler ( 60 ) configured to establish communication between the compressor ( 101 ) and the first communication flow path ( 401 ), the liquid gas cooler ( 60 ) having a first heat exchange medium flow path adapted to be in communication with a second heat exchange medium flow path ( 210 ) of an interior heat exchange system ( 200 ) of the vehicle in series, wherein: the heat exchange medium in the liquid gas cooler ( 60 ) flowing from the compressor ( 101 ) towards the first communication flow path ( 401 ) is adapted to exchange heat with the heat exchange medium in the first heat exchange medium flow path within the liquid gas cooler ( 60 ).

5 . The air conditioning system ( 100 ) according to claim 4 , further comprising:
a fifth communication flow path ( 405 ) configured to establish communication between the second heat exchange tube and the evaporator ( 103 ), the first throttle valve ( 201 ) being disposed at the fifth communication flow path ( 405 ).

6 . The air conditioning system ( 100 ) according to claim 5 , further comprising:
a cooling member ( 70 ) having a third heat exchange medium flow path, the third heat exchange medium flow path being adapted to be in communication with a fourth heat exchange medium flow path ( 310 ) of a battery cooling system ( 300 ) of the vehicle in series, and the cooling member ( 70 ) being selectively in communication with the second heat exchange tube and being in communication with the first heat exchange tube, wherein: the heat exchange medium in the cooling member ( 70 ) flowing from the second heat exchange tube towards the first heat exchange tube is adapted to exchange heat with the heat exchange medium in the third heat exchange medium flow path within the cooling member ( 70 ).

7 . The air conditioning system ( 100 ) according to claim 5 , further comprising:
a cooling member ( 70 ) having a third heat exchange medium flow path, the third heat exchange medium flow path being adapted to be in communication with a fourth heat exchange medium flow path ( 310 ) of a battery cooling system ( 300 ) of the vehicle in series, and the cooling member ( 70 ) being selectively in communication with the evaporator ( 103 ) and being in communication with the first heat exchange tube, wherein: the heat exchange medium in the cooling member ( 70 ) flowing from the evaporator ( 103 ) towards the first heat exchange tube is adapted to exchange heat with the heat exchange medium in the third heat exchange medium flow path within the cooling member ( 70 ).

8 . The air conditioning system ( 100 ) according to claim 6 , further comprising:
a sixth communication flow path ( 406 ) configured to establish communication between the fifth communication flow path ( 405 ) and the cooling member ( 70 ), the sixth communication flow path ( 406 ) being disposed at a side of the first throttle valve ( 201 ) close to the heat exchange tube assembly ( 30 ), and the sixth communication flow path ( 406 ) being provided with a second throttle valve ( 202 ); and a seventh communication flow path ( 407 ) configured to establish communication between the second communication flow path ( 402 ) and the cooling member ( 70 ), the seventh communication flow path ( 407 ) being disposed at a side of the second communication valve ( 502 ) close to the heat exchange tube assembly ( 30 ).

9 . The air conditioning system ( 100 ) according to claim 1 , wherein the heat exchange medium in the air conditioning system ( 100 ) is configured to be a CO2 medium, an R134a medium, an R1234yf, or a mixed medium.

10 . A vehicle, comprising an air conditioning system ( 100 ), wherein

Assignees

• Zhejiang Zeekr Intelligent Tech Co Ltd
• Geely Holding Group Co Ltd

Inventors

• Wang Jian
• Xia Songyong
• Liu Jinsong
• Dai Lihui
• Xing Xiaodong
• Qu Hongfang

Classifications

• B60H1/32284

  comprising two or more secondary circuits, e.g. at evaporator and condenser side · CPC title

• B60H1/3229

  characterised by constructional features, e.g. housings, mountings, conversion systems (B60H1/3227, B60H1/3233 take precedence) · CPC title

• B60H1/00885

  Controlling the flow of heating or cooling liquid, e.g. valves or pumps (B60H1/00899 takes precedence; constructions of valves B60H1/00485) · CPC title

• B60H1/00921

  where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct · CPC title

• B60H2001/00307

  Component temperature regulation using a liquid flow · CPC title