CN116691275A - Direct heat pump air conditioning system - Google Patents
Direct heat pump air conditioning system Download PDFInfo
- Publication number
- CN116691275A CN116691275A CN202310786903.6A CN202310786903A CN116691275A CN 116691275 A CN116691275 A CN 116691275A CN 202310786903 A CN202310786903 A CN 202310786903A CN 116691275 A CN116691275 A CN 116691275A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- refrigerant
- way valve
- port
- conditioning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 16
- 239000012080 ambient air Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- B60H1/00485—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
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
-
- 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
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a direct heat pump air conditioning system, which comprises a refrigerant four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric compressor and a gas-liquid separator, wherein heat is absorbed from ambient temperature air, so that the energy consumption of the air conditioning system is reduced, and the winter range of a new energy automobile is improved. The system has simple structure, fewer related parts and core of the refrigerant four-way valve and the electronic expansion valve, and the indoor heat exchanger plays roles of the condenser and the evaporator at the same time, so that an air conditioner host can be directly borrowed, the complexity of a pipeline is low, a special heat pump air conditioner controller is needed, and the accurate control can be realized.
Description
Technical Field
The invention relates to the field of automobile air conditioners, in particular to a direct heat pump air conditioning system.
Background
In the existing automobile air conditioning system, the main stream is that ptc is used for realizing functions such as heating, and the refrigerating function is finished by another set of refrigerant system, and the two systems are matched with each other to realize a plurality of needed modes; the electric heating is directly adopted, and the scheme of the electric heating device comprises a ptc air heater, a ptc water heater and the like, and the electric energy is directly consumed to be converted into heat energy. The main research direction of reducing the heating energy consumption of the air conditioner at the present stage is to replace the original ptc air conditioner by adopting a heat pump air conditioner.
Disclosure of Invention
The invention aims to provide a direct heat pump air conditioning system, which is used for absorbing heat from ambient temperature air, reducing energy consumption of the air conditioning system and improving the winter endurance mileage of a new energy automobile. The system has simple structure, fewer related parts and core of the refrigerant four-way valve and the electronic expansion valve, and the indoor heat exchanger plays roles of the condenser and the evaporator at the same time, so that an air conditioner host can be directly borrowed, the complexity of a pipeline is low, a special heat pump air conditioner controller is needed, and the accurate control can be realized.
A direct heat pump air conditioning system comprises a refrigerant four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric compressor and a gas-liquid separator;
the outdoor heat exchanger is connected between a C port of the refrigerant four-way valve and the indoor heat exchanger, the other side of the indoor heat exchanger is connected with an A port of the refrigerant four-way valve, the electric compressor is connected between a B port of the refrigerant four-way valve and the gas-liquid separator, and the other side of the gas-liquid separator is connected with a D port of the refrigerant four-way valve.
Preferably, the device also comprises a heating mode and a refrigerating mode;
preferably, the heating mode is: the medium enters from the outdoor heat exchanger to the C port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the A port of the refrigerant four-way valve, then enters the indoor heat exchanger, and finally flows back to the outdoor heat exchanger.
Preferably, the refrigeration mode is: the medium enters from the indoor heat exchanger to the A port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the C port of the refrigerant four-way valve, then enters the outdoor heat exchanger, and finally flows back to the indoor heat exchanger.
Preferably, a pressure stabilizing sensor is connected between the outdoor heat exchanger and the refrigerant four-way valve, and a pressure stabilizing sensor is connected between the indoor heat exchanger and the refrigerant four-way valve in a liquid mode.
Preferably, an electronic expansion valve is further connected between the outdoor heat exchanger and the indoor heat exchanger.
Preferably, the outdoor heat exchanger is also connected with a low-temperature radiator and a cooling fan, and the indoor heat exchanger is also connected with a wind heating PTC and a blower.
The invention has the advantages that: the direct heat pump air conditioning system is used for absorbing heat from ambient temperature air, so that the energy consumption of the air conditioning system is reduced, and the winter endurance mileage of the new energy automobile is improved. The system has simple structure, fewer related parts and core of the refrigerant four-way valve and the electronic expansion valve, and the indoor heat exchanger plays roles of the condenser and the evaporator at the same time, so that an air conditioner host can be directly borrowed, the complexity of a pipeline is low, a special heat pump air conditioner controller is needed, and the accurate control can be realized.
Drawings
FIG. 1 is a schematic diagram of a heating mode of the present invention;
FIG. 2 is a schematic diagram of the cooling mode principle of the present invention;
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 2, the present invention includes a refrigerant four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric compressor, and a gas-liquid separator;
the outdoor heat exchanger is connected between a C port of the refrigerant four-way valve and the indoor heat exchanger, the other side of the indoor heat exchanger is connected with an A port of the refrigerant four-way valve, the electric compressor is connected between a B port of the refrigerant four-way valve and the gas-liquid separator, and the other side of the gas-liquid separator is connected with a D port of the refrigerant four-way valve.
In particular, heating mode and cooling mode are also included;
wherein, the heating mode is: the medium enters from the outdoor heat exchanger to the C port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the A port of the refrigerant four-way valve, then enters the indoor heat exchanger, and finally flows back to the outdoor heat exchanger.
And the refrigeration mode is as follows: the medium enters from the indoor heat exchanger to the A port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the C port of the refrigerant four-way valve, then enters the outdoor heat exchanger, and finally flows back to the indoor heat exchanger.
In addition, a pressure stabilizing sensor is connected between the outdoor heat exchanger and the refrigerant four-way valve, and a pressure stabilizing sensor is connected between the indoor heat exchanger and the refrigerant four-way valve in a liquid mode. The outdoor heat exchanger is also connected with a low-temperature radiator and a cooling fan, and the indoor heat exchanger is also connected with a wind heating PTC and a blower.
In particular, an electronic expansion valve is also connected between the outdoor heat exchanger and the indoor heat exchanger.
Specific embodiments and principles:
when heating is needed, the air conditioning system starts a heating mode, firstly, a high-temperature high-pressure gaseous medium from a compressor enters an indoor heat exchanger through a pipeline, the medium exchanges heat with the air temperature in the environment of the vehicle through the indoor heat exchanger, heat in the medium is released into a passenger cabin, the medium is condensed to become a high-temperature high-pressure liquid medium, the liquid medium is throttled by an electronic expansion valve to become a low-temperature low-pressure gas-liquid mixed medium, and the heat of the ambient air temperature is absorbed by an outdoor heat exchanger. The low-temperature low-pressure gaseous medium leaving the outdoor heat exchanger enters the gas-liquid separator through a pipeline, and then the gaseous medium returns to the compressor for compression, becomes high-temperature high-pressure gaseous medium, and restarts circulation.
When refrigeration is needed, the air conditioning system starts a refrigeration mode, firstly, a high-temperature high-pressure gaseous medium from the compressor enters the outdoor heat exchanger through a pipeline, the medium exchanges heat with the ambient air temperature through the outdoor heat exchanger, the medium is condensed to become a high-temperature high-pressure liquid medium, the liquid medium is throttled by the electronic expansion valve to become a low-temperature low-pressure gas-liquid mixed medium, and the heat in the passenger cabin is absorbed through the indoor heat exchanger, so that the temperature of the passenger cabin is reduced. The low-temperature low-pressure gaseous medium leaving the evaporator enters the gas-liquid separator through a pipeline, then the gaseous medium returns to the compressor for compression, becomes high-temperature high-pressure gaseous medium, and restarts the refrigeration cycle.
And directly opening the air heating PTC in extremely cold environment.
Based on the above, the invention uses the direct heat pump air conditioning system to absorb heat from the ambient temperature air, thereby reducing the energy consumption of the air conditioning system and improving the winter range of the new energy automobile. The system has simple structure, fewer related parts and core of the refrigerant four-way valve and the electronic expansion valve, and the indoor heat exchanger plays roles of the condenser and the evaporator at the same time, so that an air conditioner host can be directly borrowed, the complexity of a pipeline is low, a special heat pump air conditioner controller is needed, and the accurate control can be realized.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (7)
1. The direct heat pump air conditioning system is characterized by comprising a refrigerant four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electric compressor and a gas-liquid separator;
the outdoor heat exchanger is connected between a C port of the refrigerant four-way valve and the indoor heat exchanger, the other side of the indoor heat exchanger is connected with an A port of the refrigerant four-way valve, the electric compressor is connected between a B port of the refrigerant four-way valve and the gas-liquid separator, and the other side of the gas-liquid separator is connected with a D port of the refrigerant four-way valve.
2. A direct heat pump air conditioning system according to claim 1, characterized in that: and also comprises a heating mode and a refrigerating mode.
3. A direct heat pump air conditioning system according to claim 2, characterized in that: the heating mode is as follows: the medium enters from the outdoor heat exchanger to the C port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the A port of the refrigerant four-way valve, then enters the indoor heat exchanger, and finally flows back to the outdoor heat exchanger.
4. A direct heat pump air conditioning system according to claim 2, characterized in that: the refrigeration mode is as follows: the medium enters from the indoor heat exchanger to the A port of the refrigerant four-way valve, then flows out from the D port of the refrigerant four-way valve to sequentially enter the gas-liquid separator and the electric compressor, then enters from the B port of the refrigerant four-way valve to flow out from the C port of the refrigerant four-way valve, then enters the outdoor heat exchanger, and finally flows back to the indoor heat exchanger.
5. A direct heat pump air conditioning system according to claim 1, characterized in that: and a pressure stabilizing sensor is connected between the outdoor heat exchanger and the refrigerant four-way valve, and a pressure stabilizing sensor is connected between the indoor heat exchanger and the refrigerant four-way valve in a liquid way.
6. A direct heat pump air conditioning system according to claim 1, characterized in that: and an electronic expansion valve is also connected between the outdoor heat exchanger and the indoor heat exchanger.
7. A direct heat pump air conditioning system according to claim 1, characterized in that: the outdoor heat exchanger is also connected with a low-temperature radiator and a cooling fan, and the indoor heat exchanger is also connected with a wind heating PTC and a blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786903.6A CN116691275A (en) | 2023-06-30 | 2023-06-30 | Direct heat pump air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786903.6A CN116691275A (en) | 2023-06-30 | 2023-06-30 | Direct heat pump air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116691275A true CN116691275A (en) | 2023-09-05 |
Family
ID=87823869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310786903.6A Pending CN116691275A (en) | 2023-06-30 | 2023-06-30 | Direct heat pump air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116691275A (en) |
-
2023
- 2023-06-30 CN CN202310786903.6A patent/CN116691275A/en active Pending
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