CN114454689A - Integrated heat pump air conditioning system, control method and automobile - Google Patents

Integrated heat pump air conditioning system, control method and automobile Download PDF

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Publication number
CN114454689A
CN114454689A CN202210108631.XA CN202210108631A CN114454689A CN 114454689 A CN114454689 A CN 114454689A CN 202210108631 A CN202210108631 A CN 202210108631A CN 114454689 A CN114454689 A CN 114454689A
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CN
China
Prior art keywords
heat exchanger
valve element
valve
compressor
conditioning system
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Pending
Application number
CN202210108631.XA
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Chinese (zh)
Inventor
黎燕
胡小华
李贤荣
吴存学
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Chongqing Changan New Energy Automobile Technology Co Ltd
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Chongqing Changan New Energy Automobile Technology Co Ltd
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Application filed by Chongqing Changan New Energy Automobile Technology Co Ltd filed Critical Chongqing Changan New Energy Automobile Technology Co Ltd
Priority to CN202210108631.XA priority Critical patent/CN114454689A/en
Publication of CN114454689A publication Critical patent/CN114454689A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3229—Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to an integrated heat pump air conditioning system, comprising: the compressor, the first heat exchanger, the second heat exchanger, the third heat exchanger, the gas-liquid separator, the first valve piece, the second valve piece and the third valve piece; the heat exchanger comprises a first plate and a second plate which are arranged oppositely, wherein a first flow channel communicated with a first heat exchanger and a first valve is formed between the first plate and the second plate, a second flow channel communicated with the first valve and the second heat exchanger, a third flow channel communicated with the second heat exchanger, the second valve and the third valve, a fourth flow channel communicated with the second valve and the third heat exchanger, a fifth flow channel communicated with the third valve and a gas-liquid separator and communicated with the third heat exchanger and the gas-liquid separator; the compressor is communicated with the inlet of the first heat exchanger and the outlet of the gas-liquid separator; the heat pump air conditioning system forms a circuit for cooling by the refrigerant flowing out of the compressor or a circuit for heating by the refrigerant flowing out of the compressor by controlling the opening and closing of the first valve element, the second valve element and the third valve element.

Description

Integrated heat pump air conditioning system, control method and automobile
Technical Field
The invention belongs to the technical field of electric automobiles, and relates to an integrated heat pump air conditioning system, a control method and an automobile.
Background
With the continuous development and popularization of electric automobiles, the requirements of endurance mileage and energy consumption are continuously improved in order to meet the market demand. The power consumption of an air conditioner, especially the heating power consumption of a passenger compartment becomes a problem to be solved urgently in the industry. The new technology and new function of the heat pump air conditioning system are the energy-saving and consumption-reducing method accepted by the industry. Because the number of parts of the heat pump air-conditioning system is large, the arrangement pressure of an engine room is high, and the cost is high, the invention of a product for efficiently integrating the parts of the heat pump air-conditioning system is urgently needed.
Disclosure of Invention
In view of the above, the present invention provides an integrated heat pump air conditioning system, a control method and an automobile, so as to integrate a cooling function and a heating function of the heat pump air conditioning system.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides an integrated heat pump air conditioning system, comprising:
the system comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a gas-liquid separator 4, a first valve piece, a second valve piece and a third valve piece;
the heat exchanger comprises a first plate and a second plate which are arranged oppositely, wherein a first flow passage communicated with the first heat exchanger and a first valve is formed between the first plate and the second plate, a second flow passage communicated with the first valve and the second heat exchanger, a third flow passage communicated with the second heat exchanger, the second valve and the third valve, a fourth flow passage communicated with the second valve and the third heat exchanger, a fifth flow passage communicated with the third valve, the gas-liquid separator and the third heat exchanger and the gas-liquid separator;
the compressor is communicated with the inlet of the first heat exchanger and the outlet of the gas-liquid separator;
the heat pump air conditioning system forms a circuit for cooling by using refrigerant flowing out of a compressor or a circuit for heating by using refrigerant flowing out of a compressor by controlling the opening and closing of the first valve element, the second valve element and the third valve element.
Preferably, by controlling the first valve element to be opened, the second valve element to be closed and the third valve element to be opened, the refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger, the first valve element, the second heat exchanger, the third valve element and the gas-liquid separator, so as to form a refrigeration loop;
by controlling the first valve element to be opened, the third valve element to be closed and the second valve element to be opened, the refrigerant flowing out of the compressor flows through the first heat exchanger, the first valve element, the second heat exchanger, the second valve element, the third heat exchanger and the gas-liquid separator and then flows back to the compressor, so that a heating loop is formed.
Preferably, the heat pump air conditioning system further comprises: a first temperature sensor for collecting the temperature of the refrigerant flowing out of the first heat exchanger, a second temperature sensor for collecting the temperature of the refrigerant flowing out of the outlet of the third valve, and a third temperature sensor for collecting the temperature of the refrigerant flowing out of the outlet of the third heat exchanger.
Preferably, the second plate is provided with a first valve member mounting seat for mounting the first valve member, a second valve member mounting seat for mounting the second valve member and a third valve member mounting seat for mounting the third valve member.
Preferably, the second plate is provided with a first temperature sensor mounting seat for mounting the first temperature sensor, a second temperature sensor mounting seat for mounting the second temperature sensor and a third temperature sensor mounting seat for mounting the third temperature sensor.
Preferably, the first heat exchanger, the second heat exchanger, the third heat exchanger and the gas-liquid separator are mounted on the first plate member.
The invention also provides an integrated heat pump air-conditioning system control method, which is applied to the integrated heat pump air-conditioning system and comprises the following steps:
when an air conditioner refrigeration instruction is obtained, the first valve element is controlled to be opened, the second valve element is controlled to be closed, and the third valve element is controlled to be opened, so that the refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger, the first valve element, the second heat exchanger, the third valve element and the gas-liquid separator;
when an air conditioner heating instruction is obtained, the first valve piece is controlled to be opened, the third valve piece is controlled to be closed, the second valve piece is controlled to be opened, and refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger, the first valve piece, the second heat exchanger, the second valve piece, the third heat exchanger and the gas-liquid separator.
The invention also provides an automobile comprising the integrated heat pump air conditioning system.
The invention has the beneficial effects that:
1. the heat exchanger, the gas-liquid separator and the sensor are integrated, so that the internal space of the cabin is greatly saved.
2. The plate-replaced channel is used as a refrigerant flow channel, most air-conditioning pipelines are saved, the arrangement of the engine room is more attractive, and the cost of the air-conditioning system is reduced.
3. The plate exchange structure of the integrated component is integrally welded in a furnace, so that the manufacturing process is simple and the cost is reduced;
4. the valve piece mounting seat is welded on the second plate in a unified mode, the valve piece is connected to the attack through threads, compared with the means that the valve piece is assembled on the whole vehicle, the valve piece mounting support can be reduced, and flexibility is higher.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of heat pump air conditioning system component integration;
FIG. 2 is a schematic diagram of a cooling mode of the heat pump air conditioning system;
FIG. 3 is a schematic diagram of a heating mode of a heat pump air conditioning system;
FIG. 4 is a schematic flow diagram of the system components integrating the refrigerant;
description of reference numerals: 1-a first heat exchanger; 2-a second heat exchanger; 3-a third heat exchanger; 4-a gas-liquid separator; 5-a first plate; 6-a second plate; 7-a first valve element; 8-a first temperature sensor; 9-a second valve member; 10-a third valve element; 11-a second temperature sensor; 12-a second temperature sensor; 101-a first flow channel; 102-a second flow channel; 103-a third flow channel; 104-a fourth flow channel; 105-fifth flow channel.
Detailed Description
The heat pump system integration will be described and illustrated in detail below with reference to the accompanying drawings. The description is only intended as an example of the implementation of this invention and not as a limitation of this invention.
As shown in fig. 1, 2, 3 and 4, in the present embodiment, there is provided an integrated heat pump air conditioning system including: the system comprises a compressor, a first heat exchanger 1, a second heat exchanger 2, a third heat exchanger 3, a gas-liquid separator 4, a first valve element 7, a second valve element 9 and a third valve element 10; a first plate 5 and a second plate 6 which are oppositely arranged, wherein a first flow passage 101 for communicating the first heat exchanger 1 and the first valve 7, a second flow passage 102 for communicating the first valve 7 and the second heat exchanger 2, a third flow passage 103 for communicating the second heat exchanger 2, the second valve 9 and the third valve 10, a fourth flow passage 104 for communicating the second valve 9 and the third heat exchanger 3, a fifth flow passage 105 for communicating the third valve 10 and the gas-liquid separator 4 and for communicating the third heat exchanger 3 and the gas-liquid separator 4 are formed between the first plate 5 and the second plate 6; the compressor is communicated with the inlet of the first heat exchanger 1 and the outlet of the gas-liquid separator 4; the heat pump air conditioning system is configured to be a circuit for cooling by the refrigerant flowing out of the compressor or a circuit for heating by the refrigerant flowing out of the compressor by opening and closing the first valve element 7, the second valve element 9, and the third valve element 10.
The first heat exchanger 1, the second heat exchanger 2 and the third heat exchanger 3 can be used for heat exchange of a passenger compartment, heat exchange of a motor loop and heat exchange of a battery loop based on actual requirements.
In addition, the first plate 5 and the second plate 6 are formed by press, and both internally form the flow passages required in the present embodiment. Because each required flow channel is integrated between the first plate 5 and the second plate 6, the integrated arrangement of each heat exchanger and each valve piece on the plates is realized, most air-conditioning pipelines are saved, the arrangement of the engine room is more attractive, and the cost of an air-conditioning system is reduced; meanwhile, the heat pump air conditioning system integrates the cooling and heating functions by means of the opening and closing control of the second valve element 9 and the third valve element 10.
As shown in fig. 1 to 3, in the present embodiment, the heat pump air conditioning system further includes: a first temperature sensor 8 for collecting the temperature of the refrigerant flowing out of the first heat exchanger 1, a second temperature sensor 11 for collecting the temperature of the refrigerant flowing out of the outlet of the third valve element 10, and a third temperature sensor 12 for collecting the temperature of the refrigerant flowing out of the outlet of the third heat exchanger 3. A first valve member mounting seat for mounting the first valve member 7, a second valve member mounting seat for mounting the second valve member 9, and a third valve member mounting seat for mounting the third valve member 10 are mounted on the second plate 6. A first valve member mounting seat for mounting the first valve member 7, a second valve member mounting seat for mounting the second valve member 9, and a third valve member mounting seat for mounting the third valve member 10 are mounted on the second plate 6. The second plate 6 is provided with a first temperature sensor mounting seat for mounting the first temperature sensor 8, a second temperature sensor mounting seat for mounting the second temperature sensor 11 and a third temperature sensor mounting seat for mounting the third temperature sensor 12.
Wherein, first valve member mount pad, second valve member mount pad and third valve member mount pad can select for use the standard part, during the assembly, only need with the valve member assembly of corresponding model to the valve member mount pad that corresponds can. Similarly, first temperature sensor mount pad, second temperature sensor mount pad and third temperature sensor mount pad all can adopt the standard component, during the assembly, only need with the temperature sensor assembly of corresponding model to the sensor mount pad that corresponds can.
The temperatures collected by the first temperature sensor 8, the second temperature sensor 11, and the third temperature sensor 12 may be used to adjust the rotation speed of the compressor, so that the outlet air temperature of the heat pump air conditioning system is suitable for the required temperature.
As shown in fig. 3, in the heating mode, the refrigerant flows out of the compressor assembly, enters through the inlet a1 of the first heat exchanger 1, flows into the inlet a2 of the first flow passage 101 through the outlet of the second heat exchanger 1, flows through the first flow passage 101, flows through the first valve element 7, flows through the outlet a3 of the second flow passage 102 to the inlet of the second heat exchanger 2, flows through the outlet of the second heat exchanger 2 to the inlet a4 of the third flow passage 103, flows through the third valve element 9, flows through the fourth flow passage 104 to the third heat exchanger 3, finally reaches the gas-liquid separator 4 through the port a5 and the port a7 of the fifth flow passage 105, and returns to the compressor. Similarly, in the cooling mode, the refrigerant flows out of the compressor, enters through the inlet a1 of the first heat exchanger 1, flows into the inlet a2 of the first flow passage 101 through the outlet of the second heat exchanger 1, flows through the first flow passage 101, flows through the first valve element 7, flows to the inlet of the second heat exchanger 2 through the outlet a3 of the second flow passage 102, flows into the inlet a4 of the third flow passage 103 through the outlet of the second heat exchanger 2, flows through the second valve element 10, finally flows to the gas-liquid separator 4 through the interface a6 and the interface a7 of the fifth flow passage 105, and returns to the compressor. If the refrigeration mode is started, the first valve element 7 is opened, the second valve element 9 is closed, the third valve element 10 is opened, and the refrigerant directly enters the gas-liquid separator 4 through the interface a6 and the interface a7 of the fifth flow passage 105 and finally enters the compressor through the gas-liquid separator 4; when the heating mode is turned on, the first valve element 7 is turned on, the third valve element 10 is closed, the second valve element 9 is opened, the refrigerant enters the third heat exchanger 3, flows out of the port a5 of the fifth flow path 105, enters the gas-liquid separator 4 through the port a7, and finally enters the compressor through the gas-liquid separator 4.
In the assembly of the heat pump air conditioning system of the present embodiment, the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are stacked and formed; assembling the first plate 5 and the second plate 6; arranging the three heat exchangers 1, 2 and 3 on a first plate 5 in sequence and vertically, and placing the heat exchangers on a welding tool; spot welding the mounting seat points of the temperature sensors and the mounting seats of the valves on the second plate 6; then welding and forming are carried out in a medium-frequency induction furnace; finally, the valve, the sensor and the gas-liquid separator 4 are assembled on the corresponding valve mounting seat, the sensor mounting seat and the first plate 6.
The invention also provides an integrated heat pump air-conditioning system control method, which is applied to the integrated heat pump air-conditioning system and comprises the following steps:
when an air conditioner refrigeration instruction is obtained, the first valve element 7 is controlled to be opened, the second valve element 9 is controlled to be closed, and the third valve element 10 is controlled to be opened, so that the refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger 1, the first valve element 7, the second heat exchanger 2, the third valve element 10 and the gas-liquid separator 4;
when an air conditioner heating instruction is obtained, the first valve element 7 is controlled to be opened, the third valve element 10 is controlled to be closed, and the second valve element 9 is controlled to be opened, so that the refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger 1, the first valve element 7, the second heat exchanger 2, the second valve element 9, the third heat exchanger 3 and the gas-liquid separator 4.
The invention also provides an automobile comprising the integrated heat pump air conditioning system.
The heat pump air conditioning system of the embodiment has the following advantages:
1. the heat exchanger, the gas-liquid separator and the sensor are integrated, so that the internal space of the cabin is greatly saved.
2. The plate-replaced channel is used as a refrigerant flow channel, most air-conditioning pipelines are saved, the arrangement of the engine room is more attractive, and the cost of the air-conditioning system is reduced.
3. The plate exchange structure of the integrated component is integrally welded in a furnace, so that the manufacturing process is simple and the cost is reduced;
4. all the valve piece mounting seats are welded on the second plate 6 in a unified mode, the valve pieces are connected to the attack through threads, compared with a means that the valve pieces are assembled on the whole vehicle, the valve piece mounting support can be reduced, and flexibility is higher.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. An integrated heat pump air conditioning system, comprising:
the heat exchanger comprises a compressor, a first heat exchanger (1), a second heat exchanger (2), a third heat exchanger (3), a gas-liquid separator (4), a first valve piece (7), a second valve piece (9) and a third valve piece (10);
a first plate (5) and a second plate (6) which are oppositely arranged, wherein a first flow passage (101) which is communicated with the first heat exchanger (1) and the first valve element (7), a second flow passage (102) which is communicated with the first valve element (7) and the second heat exchanger (2), a third flow passage (103) which is communicated with the second heat exchanger (2), the second valve element (9) and the third valve element (10), a fourth flow passage (104) which is communicated with the second valve element (9) and the third heat exchanger (3), a fifth flow passage (105) which is communicated with the third heat exchanger (3) and the gas-liquid separator (4) are formed between the first plate (5) and the second plate (6);
the compressor is communicated with the inlet of the first heat exchanger (1) and the outlet of the gas-liquid separator (4);
the heat pump air conditioning system forms a circuit for cooling by using refrigerant flowing out of a compressor or a circuit for heating by using refrigerant flowing out of a compressor by controlling the opening and closing of the first valve element (7), the second valve element (9) and the third valve element (10).
2. The integrated heat pump air-conditioning system according to claim 1, wherein by controlling the first valve element (7) to be opened, the second valve element (9) to be closed and the third valve element (10) to be opened, the refrigerant flowing out of the compressor flows back to the compressor after passing through the first heat exchanger (1), the first valve element (7), the second heat exchanger (2), the third valve element (10) and the gas-liquid separator (4), so as to form a refrigeration loop;
by controlling the first valve piece (7) to be opened, the third valve piece (10) to be closed and the second valve piece (9) to be opened, the refrigerant flowing out of the compressor flows through the first heat exchanger (1), the first valve piece (7), the second heat exchanger (2), the second valve piece (9), the third heat exchanger (3) and the gas-liquid separator (4) and then flows back to the compressor, and a heating loop is formed.
3. The integrated heat pump air conditioning system of claim 1, further comprising: a first temperature sensor (8) for collecting the temperature of the refrigerant flowing out of the first heat exchanger (1), a second temperature sensor (11) for collecting the temperature of the refrigerant flowing out of the outlet of the third valve element (10), and a third temperature sensor (12) for collecting the temperature of the refrigerant flowing out of the outlet of the third heat exchanger (3).
4. The integrated heat pump air conditioning system according to claim 1, wherein the second plate (6) has mounted thereon a first valve element mounting seat for mounting the first valve element (7), a second valve element mounting seat for mounting the second valve element (9), and a third valve element mounting seat for mounting the third valve element (10).
5. The integrated heat pump air conditioning system according to claim 1, wherein the second plate (6) has mounted thereon a first temperature sensor mounting seat for mounting the first temperature sensor (8), a second temperature sensor mounting seat for mounting the second temperature sensor (11), and a third temperature sensor mounting seat for mounting the third temperature sensor (12).
6. The integrated heat pump air-conditioning system according to claim 1, wherein the first heat exchanger (1), the second heat exchanger (2), the third heat exchanger (3) and the gas-liquid separator (4) are mounted on the first plate (5).
7. An integrated heat pump air conditioning system control method applied to the integrated heat pump air conditioning system according to any one of claims 1 to 6, characterized by comprising:
when an air conditioner refrigeration instruction is acquired, the first valve element (7) is controlled to be opened, the second valve element (9) is controlled to be closed, and the third valve element (10) is controlled to be opened, so that the refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger (1), the first valve element (7), the second heat exchanger (2), the third valve element (10) and the gas-liquid separator (4);
when an air conditioner heating instruction is obtained, the first valve piece (7) is controlled to be opened, the third valve piece (10) is controlled to be closed, the second valve piece (9) is controlled to be opened, and refrigerant flowing out of the compressor flows back to the compressor after flowing through the first heat exchanger (1), the first valve piece (7), the second heat exchanger (2), the second valve piece (9), the third heat exchanger (3) and the gas-liquid separator (4).
8. An automobile comprising an integrated heat pump air conditioning system according to any one of claims 1 to 6.
CN202210108631.XA 2022-01-28 2022-01-28 Integrated heat pump air conditioning system, control method and automobile Pending CN114454689A (en)

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