CN110103668A - The heat pump air conditioner of automobile - Google Patents
The heat pump air conditioner of automobile Download PDFInfo
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- CN110103668A CN110103668A CN201910439324.8A CN201910439324A CN110103668A CN 110103668 A CN110103668 A CN 110103668A CN 201910439324 A CN201910439324 A CN 201910439324A CN 110103668 A CN110103668 A CN 110103668A
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- gas
- evaporator
- liquid separator
- air conditioner
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- 239000007788 liquid Substances 0.000 claims abstract description 88
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 43
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 11
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 241000790917 Dioxys <bee> Species 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
-
- 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
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Present invention discloses a kind of heat pump air conditioners of automobile, comprising: compressor, external heat exchanger, gas-liquid separator, evaporator, internal exchanger.The output of compressor is connected to the second end of the first end of external heat exchanger and internal exchanger respectively.The first end of high temperature and pressure runner of gas-liquid separator is connected to the second end of external heat exchanger, the second end of high temperature and pressure runner of gas-liquid separator is connected to the second end of evaporator, the first end of low-temp low-pressure runner of gas-liquid separator is connected to the input of compressor, and the second end of low-temp low-pressure runner of gas-liquid separator is connected to the first end of the first end of evaporator and internal exchanger.The first end of evaporator is connected with the first end of internal exchanger.The first end of internal exchanger is connected to the first end of external heat exchanger.Wherein, all parts are interconnected by pipeline, open and close valve are equipped on pipeline to cut off or open the pipeline, the working medium of heat pump air conditioner is carbon dioxide.
Description
Technical field
The present invention relates to auto parts and components, more specifically to a kind of heat pump air conditioner of automobile.
Background technique
In current automotive air-conditioning system, the refrigerant used is mainly HFC-134a, and work is not destroyed to ozone layer
With (ODP=0), but there is quite high global warming potential (GWP=1300).From 2017, European Union's new production vehicle
Stop using HFC-134a as car air conditioner refrigerant.On January 1st, 2019, Montreal protocol Kigali's amendment
Formally effective, the world is in production and consumption, the limitation global warming for substantially cutting down potent greenhouse gases HFCs.China is also counting
It draws and Kigali's amendment is added, it is foreseen that, the use of HFC-134a will be greatly reduced.
In winter, it when needing air-conditioning heating, is generally heated using PTC.But PTC heat for battery capacity consumption compared with
Greatly.For conventional fuel oil car, since car engine chance charges the battery, influence is not very significant, but for making
It uses battery as the electric car of sole energy source, vehicle battery power consumption can be accelerated using PTC heating, to electronic
The course continuation mileage of automobile has larger impact.Meanwhile in the case where not enough power supply, PTC is fail to open, winter passenger comfort without
Method guarantees.
Summary of the invention
The present invention proposes a kind of automobile heat pump air conditioner using carbon dioxide for working medium.
An embodiment according to the present invention, proposes a kind of heat pump air conditioner of automobile, comprising: compressor, external heat exchanger, gas
Liquid/gas separator, evaporator, internal exchanger.Compressor output respectively with the first end of external heat exchanger and internal exchanger
Second end connection.The first end of high temperature and pressure runner of gas-liquid separator is connected to the second end of external heat exchanger, gas-liquid point
The second end of high temperature and pressure runner from device is connected to the second end of evaporator, and the first of the low-temp low-pressure runner of gas-liquid separator
End is connected to the input of compressor, the second end of low-temp low-pressure runner and the first end of evaporator of gas-liquid separator and inside
The first end of heat exchanger is connected to.The first end of evaporator is connected with the first end of internal exchanger.The first of internal exchanger
End is connected to the first end of external heat exchanger.Wherein, all parts are interconnected by pipeline, be equipped on pipeline open and close valve with
The pipeline is cut off or opens, the working medium of the heat pump air conditioner is carbon dioxide.
In one embodiment, which further includes in-vehicle device heat exchanger, the first end of in-vehicle device heat exchanger
Pass through pipeline connection, the second end and gas-liquid point of in-vehicle device heat exchanger with the second end of the low-temp low-pressure runner of gas-liquid separator
The second end of high temperature and pressure runner from device passes through pipeline connection, is equipped with open and close valve on pipeline to cut off or open the pipe
Road.
In one embodiment, open and close valve includes unidirectional stop valve or electric expansion valve.The first end of internal exchanger
On pipeline between the first end of evaporator, the second end of the second end of the high temperature and pressure runner of gas-liquid separator and evaporator
Between pipeline on, the pipe between the second end of the high temperature and pressure runner of the second end of in-vehicle device heat exchanger and gas-liquid separator
Road installation electric expansion valve.Unidirectional stop valve is installed on remaining pipeline.Gas-liquid separator has regenerator.
In one embodiment, which further includes temperature damper, and temperature damper is opened, and in-vehicle air is directed to
Evaporator and internal exchanger, temperature damper are closed, and in-vehicle air is only contacted with evaporator.
In one embodiment, carbon dioxide is exported from compressor, external heat exchanger is first flowed through, using gas-liquid separator
High temperature and pressure runner, and eventually pass through gas-liquid separator low-temp low-pressure runner return compressor, heat pump air conditioner refrigeration.Dioxy
Change carbon to export from compressor, first flow through the high temperature and pressure runner of gas-liquid separator, passes through external heat exchanger, and eventually pass through gas
The low-temp low-pressure runner of liquid/gas separator returns to compressor, heat pump air conditioner heating.
In one embodiment, heat pump air conditioner executes maximum cooling condition, and carbon dioxide is heated up by compressor boost, enters
External heat exchanger and outside air exchange heat, and pass through the high pressure-temperature runner of gas-liquid separator and enter evaporator from in-vehicle air
Heat absorption finally flows back to compressor by the low-pressure low-temperature runner of gas-liquid separator.Heat pump air conditioner executes mixed wind cooling condition, temperature
Air door is opened, and in-vehicle air is directed to internal exchanger and evaporator, is not connected between internal exchanger and evaporator, dioxy
Change carbon to be heated up by compressor boost, be introduced into internal exchanger and in-vehicle air exchanges heat, enters back into external heat exchanger and the external world is empty
Gas heat exchange passes through the high pressure-temperature runner of gas-liquid separator and enters evaporator and absorb heat from in-vehicle air, finally passes through gas-liquid
The low-pressure low-temperature runner of separator flows back to compressor.
In one embodiment, heat pump air conditioner under maximum cooling condition or mixed wind cooling condition also to in-vehicle device into
Row cooling, a part of the carbon dioxide flowed out from the high pressure-temperature runner of gas-liquid separator into the car equipment heat exchanger from vehicle
Interior equipment heat absorption, flows back to compressor using the low-pressure low-temperature runner of gas-liquid separator.
In one embodiment, heat pump air conditioner executes maximum heating condition, and temperature damper is opened, and in-vehicle air is directed to
Internal exchanger and evaporator, internal exchanger are connected to evaporator, and carbon dioxide is heated up by compressor boost, are changed into inside
Hot device and evaporator exchange heat with in-vehicle air, then enter outside by the high pressure-temperature runner of gas-liquid separator from evaporator and change
Hot device exchanges heat with outside air, finally flows back to compressor by the low-pressure low-temperature runner of gas-liquid separator.
In one embodiment, heat pump air conditioner also cools down in-vehicle device under maximum heating condition, from evaporator
Equipment heat exchanger absorbs heat a part of the carbon dioxide of outflow from in-vehicle device into the car, using the low pressure of gas-liquid separator
Low temperature runner flows back to compressor.
In one embodiment, heat pump air conditioner executes interior heating condition, and temperature damper is opened, and in-vehicle air is directed to
Internal exchanger and evaporator, internal exchanger are connected to evaporator, and carbon dioxide is heated up by compressor boost, are changed into inside
Hot device and evaporator exchange heat with in-vehicle air, then pass through in-vehicle device heat exchanger from evaporator, using the low of gas-liquid separator
It forces down warm runner and flows back to compressor.The electric expansion valve on the pipeline between internal exchanger and evaporator is adjusted, and adjusts temperature
Air door is spent, in-vehicle air is dehumidified by evaporator and heated by internal exchanger, and heat pump air conditioner executes dehumidifying heating cycle.
The heat pump air conditioner of automobile proposed by the present invention is working medium using carbon dioxide, passes through the not cocurrent flow in same set of system
Always control and operation of the carbon dioxide heat pump system under different operating conditions are realized, is realized in same set of system: refrigeration, system
Heat including cold and hot even cooling for (dehumidifying heating), battery, the functions such as pure battery heat supply circulation.By using battery heat source,
Interior heat source/cold source etc. realizes energy conservation, increases course continuation mileage.Simplify operating loop as far as possible simultaneously, utilization is integrated, integrated
The measures such as the gas-liquid separator with heat regenerator function, reduce system bulk, achieve the purpose that reduce optimization cost.
Detailed description of the invention
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:
Fig. 1 discloses the structural block diagram of the heat pump air conditioner of the automobile of an embodiment according to the present invention.
Specific embodiment
In order to solve the problems, such as existing car air-conditioner, electric quantity consumption excessive problem when especially heating has
Heat pump air conditioner is applied to the scheme of car air-conditioner.Heat pump air conditioner can absorb heat from external environment, can mention to a certain degree in heating
High heat efficiency.But working medium used in existing heat pump air conditioner or HFC-134a.On the one hand, HFC-134a is as refrigerant
Use can gradually be restricted, on the other hand, the physical characteristic of HFC-134a determines that at low temperature, HFC-134a's changes
Thermal energy power is poor, it is still necessary to PTC intervention, to guarantee comfort.Therefore at low ambient temperatures, using HFC-134a as the heat of working medium
It is limited to the help for promoting energy consumption to pump air-conditioning.
For carbon dioxide as natural refrigerant, GWP is only 1, nontoxic non-combustible, is the ideal substitution system of air conditioning system for vehicle
Cryogen.Compared with HFC-134a, for carbon dioxide in vaporization, heat absorption capacity is very good, is extremely suitable for heat pump system.Carbon dioxide
The Energy Efficiency Ratio (COP) of heat pump system is all higher under most of operating condition, and ambient temperature is lower, and COP is better.Therefore,
It is the ideal chose of air conditioning for automobiles using carbon dioxide as the heat pump air conditioner of working medium.Due to carbon dioxide physical characteristic with
HFC-134a is different, therefore the structure of heat pump air conditioner is also required to make corresponding change.
The present invention proposes a kind of heat pump air conditioner of automobile using carbon dioxide as working medium.Fig. 1 is disclosed according to the present invention
An embodiment automobile heat pump air conditioner structural block diagram.Refering to what is shown in Fig. 1, the heat pump air conditioner of the automobile, comprising: compressor
101, external heat exchanger 102, gas-liquid separator 105, evaporator 103, internal exchanger 104.Compressor 101, external heat exchanger
102, gas-liquid separator 105, evaporator 103, interconnected by pipeline between internal exchanger 104, on each pipeline point
Open and close valve is not installed to cut off or open corresponding pipeline, to realize different work operating conditions.The working medium of the heat pump air conditioner is
Carbon dioxide.In one embodiment, the open and close valve being installed on the pipeline includes unidirectional stop valve or electric expansion valve.
Below with reference to Fig. 1, specifically introduce compressor 101, external heat exchanger 102, gas-liquid separator 105, evaporator 103,
Connected relation between internal exchanger 104.
The output of compressor 101 is divided into two-way, respectively with the first end A1 and internal exchanger of external heat exchanger 102
104 second end B2 connection.First is equipped on the connecting pipeline of compressor 101 and the first end A1 of external heat exchanger 102
Unidirectional stop valve 111 is equipped with second unidirectionally on the connecting pipeline of compressor 101 and the second end B2 of internal exchanger 104
Shut-off valve 112.
In one embodiment, gas-liquid separator 105 is the gas-liquid separator with regenerator, and gas-liquid separator has height
Warm high pressure runner and low-temp low-pressure runner.The first end H1 and external heat exchanger 102 of the high temperature and pressure runner of gas-liquid separator 105
Second end A2 connection, the second end C2 of the second end H2 of the high temperature and pressure runner of gas-liquid separator 105 and evaporator 103 connects
It is logical.The first end L1 of the low-temp low-pressure runner of gas-liquid separator 105 is connected to the input of compressor 101, gas-liquid separator 105
The second end L2 of low-temp low-pressure runner is connected to the first end B1 of the first end C1 of evaporator 103 and internal exchanger 104.Gas
The first end H1 of the high temperature and pressure runner of liquid/gas separator 105 with the second end A2 of external heat exchanger 102 is directly connected by pipeline
It is logical, open and close valve is not installed on the pipeline.In the second end H2 and evaporator 103 of the high temperature and pressure runner of gas-liquid separator 105
Second electric expansion valve 108 is installed on the connecting pipeline of second end C2.The first of the low-temp low-pressure runner of gas-liquid separator 105
Holding between L1 and the input of compressor 101 is directly to be connected to, and does not install open and close valve on the pipeline.In the low of gas-liquid separator 105
Third unidirectional stop valve is installed on connecting pipeline between the second end L2 of warm low pressure runner and the first end C1 of evaporator 103
113.The first end C1 of evaporator 103 is connected with the first end B1 of internal exchanger 104, in the first end C1 of evaporator 103
The first electric expansion valve 107 is installed on the connecting pipeline of the first end B1 of internal exchanger 104.As shown in Figure 1, gas-liquid point
The second end L2 of low-temp low-pressure runner from device 105 and the first end B1 of internal exchanger 104 be also by pipeline connection, but
There are two open and close valves for installation on this pipeline, are third unidirectional stop valve 113 and the first electric expansion valve 107 respectively.
The first end B1 of internal exchanger 104 and the first end A1 of external heat exchanger 102 are also by pipeline connection, at this
On connecting pipeline, the 5th unidirectional stop valve 110 is installed.
In the illustrated embodiment, the heat pump air conditioner of the automobile further includes in-vehicle device heat exchanger 106, in one embodiment
In, in-vehicle device heat exchanger 106 is water- to-water heat exchanger.The cooling water of carbon dioxide and in-vehicle device carries out hot friendship in water- to-water heat exchanger
It changes.As shown, the second end of the low-temp low-pressure runner of the first end D1 of in-vehicle device heat exchanger 106 and gas-liquid separator 105
For L2 by pipeline connection, this pipeline is directly to be connected to, and does not install open and close valve on the pipeline.The of in-vehicle device heat exchanger 106
The second end H2 of the high temperature and pressure runner of two end D2 and gas-liquid separator 105 is pacified on this connecting pipeline by pipeline connection
Equipped with third electric expansion valve 109.As shown, since the second end H2 of the high temperature and pressure runner of gas-liquid separator 105 also connects
It is connected to the second electric expansion valve 108, in the second end H2 and in-vehicle device heat exchanger of the high temperature and pressure runner of gas-liquid separator 105
Between 106 second end D2,109 two open and close valves of the second electric expansion valve 108 and third electric expansion valve are separated with, and in vehicle
Between the second end D2 of interior equipment heat exchanger 106 and the second end C2 of evaporator 103, only between be separated with third electric expansion valve 109.
Shown in continuing to refer to figure 1, in the illustrated embodiment, the heat pump air conditioner of the automobile further includes temperature damper 115, temperature
Degree air door 115 is for guiding in-vehicle air to contact with evaporator or internal exchanger.It is interior when temperature damper 115 is opened
Air is directed to both evaporator and internal exchanger, and when temperature damper 115 is closed, in-vehicle air is only connect with evaporator
Touching.By adjusting the aperture of temperature damper 115, the amount of the adjustable in-vehicle air contacted with internal exchanger is that is, so-called
Mixed wind mode.
By controlling the opening and closing of above-mentioned each unidirectional stop valve and electric expansion valve, carbon dioxide can control each
Flow direction between component is achieved in the different operating operating condition of the heat pump air conditioner of the automobile.In general, in carbon dioxide
Flow process in, carbon dioxide from compressor export, external heat exchanger is first flowed through, using the high temperature and pressure of gas-liquid separator
Runner, and the low-temp low-pressure runner for eventually passing through gas-liquid separator returns to compressor, then heat pump air conditioner executes cooling condition.Dioxy
Change carbon to export from compressor, first flow through the high temperature and pressure runner of gas-liquid separator, passes through external heat exchanger, and eventually pass through gas
The low-temp low-pressure runner of liquid/gas separator returns to compressor, then heat pump air conditioner executes heating condition.
It is described below with reference to several typical conditions of the Fig. 1 to heat pump air conditioner:
Heat pump air conditioner executes maximum cooling condition: the first unidirectional stop valve 111, third unidirectional stop valve 113 and the second electricity
Sub- expansion valve 108 is opened.Second unidirectional stop valve 112, the 4th unidirectional stop valve 114, the 5th the 110, first electricity of unidirectional stop valve
Sub- expansion valve 107 and third electric expansion valve 109 are closed.Temperature damper 115 is closed, and in-vehicle air is only capable of connecing with evaporator 103
Touching.Carbon dioxide is pressurized by compressor 101 and is heated up, and enters external heat exchanger 102 by the first unidirectional stop valve 111 and the external world is empty
Gas heat exchange passes through the high pressure-temperature runner of gas-liquid separator 105 and enters evaporator 103 by the second electric expansion valve 108,
It with in-vehicle air heat exchange in evaporator, absorbs heat from in-vehicle air, finally by third unidirectional stop valve 113 by gas-liquid point
Low-pressure low-temperature runner from device 105 flows back to compressor 101.
Heat pump air conditioner executes mixed wind cooling condition: the second unidirectional stop valve 112, third unidirectional stop valve the 113, the 5th are unidirectional
Shut-off valve 110 and the second electric expansion valve 108 are opened.First unidirectional stop valve 111, the 4th unidirectional stop valve 114, the first electronics
Expansion valve 107 and third electric expansion valve 109 are closed.Temperature damper 115 partially opens, and in-vehicle air is directed to and evaporator
Both 103 and internal exchanger 104.Since the first electric expansion valve 107 is closed, the 5th unidirectional stop valve 110 is opened, therefore interior
It is not connected between portion's heat exchanger 104 and evaporator 103, but is connected between internal exchanger 104 and external heat exchanger 102.Dioxy
Change carbon and heating is pressurized by compressor 101, first passes through the second unidirectional stop valve 112 and enter the interior sky of internal exchanger 104 and part
Gas heat exchange, then external heat exchanger 102 and outside air heat exchange are entered by the 5th unidirectional stop valve 110, pass through gas-liquid separation
The high pressure-temperature runner of device 105 simultaneously by the second electric expansion valve 108 enter evaporator 103, in evaporator with another part
In-vehicle air heat exchange is absorbed heat from in-vehicle air, finally by third unidirectional stop valve 113 by the low of gas-liquid separator 105
It forces down warm runner and flows back to compressor 101.
Heat pump air conditioner under maximum cooling condition or mixed wind cooling condition if also needing to cool down in-vehicle device,
Third electric expansion valve 109 can then be operated, third electric expansion valve 109 is opened.At this time from gas-liquid separator 105
The outflow of high pressure-temperature runner carbon dioxide a part equipment heat exchanger 106 into the car, the cooling water with in-vehicle device
Heat exchange is carried out, is absorbed heat from in-vehicle device, the carbon dioxide of the part and the carbon dioxide of rest part converge rear common process
The low-pressure low-temperature runner of gas-liquid separator 105 flows back to compressor 101.The cooling water of in-vehicle device can be the cooling of on-vehicle battery
Water cools down on-vehicle battery.
Heat pump air conditioner executes maximum heating condition: the second unidirectional stop valve 112, the 4th unidirectional stop valve 114, the first electronics
Expansion valve 107 and the second electric expansion valve 108 are opened.First unidirectional stop valve 111, third unidirectional stop valve the 113, the 5th are unidirectional
Shut-off valve 110 and third electric expansion valve 109 are closed.Temperature damper 115 is opened, and in-vehicle air is directed to internal exchanger
Both 104 and evaporator 103.Since the first electric expansion valve 107 is opened, the 5th unidirectional stop valve 110 is closed, therefore inside is changed
It is connected between hot device 104 and evaporator 103, and is not connected between internal exchanger 104 and external heat exchanger 102.Carbon dioxide
It is pressurized and is heated up by compressor 101, internal exchanger 104 is entered by the second unidirectional stop valve 112, using the first electronic expansion
Valve 107 enters evaporator 103.It exchanges heat in internal exchanger 104 and evaporator 103 with in-vehicle air.It is flowed out from evaporator 103
External heat exchanger 102 is entered by the high pressure-temperature runner that the second electric expansion valve 108 enters gas-liquid separator 105 afterwards, and it is outer
Boundary's air heat-exchange flows back to compressor by the low-pressure low-temperature runner of gas-liquid separator 105 finally by the 4th unidirectional stop valve 114
101。
Heat pump air conditioner under maximum heating condition if also needing to cool down in-vehicle device, can be to third electronics
Expansion valve 109 is operated, and third electric expansion valve 109 is opened.One of the carbon dioxide flowed out at this time from evaporator 103
Divide and pass through the equipment heat exchanger 106 into the car of third electric expansion valve 109, carries out heat exchange with the cooling water of in-vehicle device, from
In-vehicle device heat absorption, the carbon dioxide of the part and the carbon dioxide of rest part pass through gas-liquid separator 105 after converging jointly
Low-pressure low-temperature runner flow back to compressor 101.The cooling water of in-vehicle device can be the cooling water of on-vehicle battery, to on-vehicle battery
It is cooled down.
Heat pump air conditioner executes interior heating condition, for example utilizes interior other component, such as battery, motor, power electricity
The fever of son, charger etc. is heated: the second unidirectional stop valve 112, the first electric expansion valve 107 and third electric expansion valve
109 open.First unidirectional stop valve 111, third unidirectional stop valve 113, the 4th unidirectional stop valve 114, the 5th unidirectional stop valve
110 and second electric expansion valve 108 close.Temperature damper 115 is opened, and in-vehicle air is directed to internal exchanger 104 and steams
Send out both devices 103.Since the first electric expansion valve 107 is opened, the 5th unidirectional stop valve 110 is closed, therefore internal exchanger 104
It is connected between evaporator 103, and is not connected between internal exchanger 104 and external heat exchanger 102.Carbon dioxide is by compressor
101 pressurization heating, by the second unidirectional stop valve 112 enter internal exchanger 104, using the first electric expansion valve 107 into
Enter evaporator 103.It exchanges heat in internal exchanger 104 and evaporator 103 with in-vehicle air.Due to the second electric expansion valve 108
It closes and the opening of third electric expansion valve 109, the carbon dioxide flowed out from evaporator 103 passes through in-vehicle device heat exchanger 106, with
The cooling water of in-vehicle device carries out heat exchange, absorbs heat from in-vehicle device, using the low-pressure low-temperature runner stream of gas-liquid separator 105
Return compressor 101.
On the basis of above-mentioned various heating conditions, adjust on the pipeline between internal exchanger 104 and evaporator 103
First electric expansion valve 107, and temperature damper 115 is adjusted, so that in-vehicle air is dehumidified by evaporator 103 and by internal exchanger
104 heating, heat pump air conditioner execute dehumidifying heating cycle.
The heat pump air conditioner of automobile proposed by the present invention is working medium using carbon dioxide, passes through the not cocurrent flow in same set of system
Always control and operation of the carbon dioxide heat pump system under different operating conditions are realized, is realized in same set of system: refrigeration, system
Heat including cold and hot even cooling for (dehumidifying heating), battery, the functions such as pure battery heat supply circulation.By using battery heat source,
Interior heat source/cold source etc. realizes energy conservation, increases course continuation mileage.Simplify operating loop as far as possible simultaneously, utilization is integrated, integrated
The measures such as the gas-liquid separator with heat regenerator function, reduce system bulk, achieve the purpose that reduce optimization cost.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or use the present invention, and is familiar with this field
Personnel can make various modifications or variation, thus this to above-described embodiment without departing from the present invention in the case of the inventive idea
The protection scope of invention is not limited by above-described embodiment, and should meet inventive features that claims are mentioned most
On a large scale.
Claims (10)
1. a kind of heat pump air conditioner of automobile characterized by comprising compressor, external heat exchanger, gas-liquid separator, evaporator,
Internal exchanger；
The output of compressor is connected to the second end of the first end of external heat exchanger and internal exchanger respectively；
The first end of high temperature and pressure runner of gas-liquid separator is connected to the second end of external heat exchanger, the high temperature of gas-liquid separator
The second end of high pressure runner is connected to the second end of evaporator, the first end and compressor of the low-temp low-pressure runner of gas-liquid separator
Input connection, the of the second end of low-temp low-pressure runner and the first end of evaporator of gas-liquid separator and internal exchanger
One end connection；
The first end of evaporator is connected with the first end of internal exchanger；
The first end of internal exchanger is connected to the first end of external heat exchanger；
Wherein, all parts are interconnected by pipeline, open and close valve are equipped on pipeline to cut off or open the pipeline, described
The working medium of heat pump air conditioner is carbon dioxide.
2. the heat pump air conditioner of automobile as described in claim 1, which is characterized in that further include in-vehicle device heat exchanger, car is set
The second end of the low-temp low-pressure runner of the first end and gas-liquid separator of standby heat exchanger passes through pipeline connection, in-vehicle device heat exchanger
Second end and gas-liquid separator high temperature and pressure runner second end by pipeline connection, open and close valve is installed to cut on pipeline
It is disconnected or open the pipeline.
3. the heat pump air conditioner of automobile as claimed in claim 2, which is characterized in that the open and close valve include unidirectional stop valve or
Electric expansion valve；
On pipeline between the first end of internal exchanger and the first end of evaporator, the high temperature and pressure runner of gas-liquid separator
On pipeline between second end and the second end of evaporator, the high temperature of the second end of in-vehicle device heat exchanger and gas-liquid separator it is high
It presses and electric expansion valve is installed on the pipeline between the second end of runner；
Unidirectional stop valve is installed on remaining pipeline；
The gas-liquid separator has regenerator.
4. the heat pump air conditioner of automobile as claimed in claim 2, which is characterized in that it further include temperature damper, temperature damper is opened,
In-vehicle air is directed to evaporator and internal exchanger, and temperature damper is closed, and in-vehicle air is only contacted with evaporator.
5. the heat pump air conditioner of automobile as claimed in claim 4, which is characterized in that
Carbon dioxide is exported from compressor, external heat exchanger is first flowed through, using the high temperature and pressure runner of gas-liquid separator, and most
Compressor, heat pump air conditioner refrigeration are returned by the low-temp low-pressure runner of gas-liquid separator eventually；
Carbon dioxide is exported from compressor, first flows through the high temperature and pressure runner of gas-liquid separator, is passing through external heat exchanger, and most
Compressor, heat pump air conditioner heating are returned by the low-temp low-pressure runner of gas-liquid separator eventually.
6. the heat pump air conditioner of automobile as claimed in claim 5, which is characterized in that
Heat pump air conditioner executes maximum cooling condition, and carbon dioxide is heated up by compressor boost, empty into external heat exchanger and the external world
Gas heat exchange passes through the high pressure-temperature runner of gas-liquid separator and enters evaporator and absorb heat from in-vehicle air, finally passes through gas-liquid
The low-pressure low-temperature runner of separator flows back to compressor；
Heat pump air conditioner executes mixed wind cooling condition, and temperature damper is opened, and in-vehicle air is directed to internal exchanger and evaporator,
It is not connected between internal exchanger and evaporator, carbon dioxide is heated up by compressor boost, is introduced into internal exchanger and car
Air heat-exchange, enters back into external heat exchanger and outside air exchanges heat, and passes through the high pressure-temperature runner of gas-liquid separator and enters
Evaporator absorbs heat from in-vehicle air, finally flows back to compressor by the low-pressure low-temperature runner of gas-liquid separator.
7. the heat pump air conditioner of automobile as claimed in claim 6, which is characterized in that heat pump air conditioner is in maximum cooling condition or mixes
Also in-vehicle device is cooled down under wind cooling condition, the one of the carbon dioxide flowed out from the high pressure-temperature runner of gas-liquid separator
Equipment heat exchanger absorbs heat from in-vehicle device into the car for part, flows back to compression using the low-pressure low-temperature runner of gas-liquid separator
Machine.
8. the heat pump air conditioner of automobile as claimed in claim 5, which is characterized in that
Heat pump air conditioner executes maximum heating condition, and temperature damper is opened, and in-vehicle air is directed to internal exchanger and evaporator,
Internal exchanger is connected to evaporator, and carbon dioxide is heated up by compressor boost, into internal exchanger and evaporator, with car
Air heat-exchange, then enter external heat exchanger from evaporator by the high pressure-temperature runner of gas-liquid separator, it exchanges heat with outside air,
Finally compressor is flowed back to by the low-pressure low-temperature runner of gas-liquid separator.
9. the heat pump air conditioner of automobile as claimed in claim 8, which is characterized in that
Heat pump air conditioner also cools down in-vehicle device under maximum heating condition, and one of the carbon dioxide flowed out from evaporator
Equipment heat exchanger absorbs heat from in-vehicle device point into the car, flows back to compressor using the low-pressure low-temperature runner of gas-liquid separator.
10. the heat pump air conditioner of automobile as claimed in claim 5, which is characterized in that
Heat pump air conditioner executes interior heating condition, and temperature damper is opened, and in-vehicle air is directed to internal exchanger and evaporator,
Internal exchanger is connected to evaporator, and carbon dioxide is heated up by compressor boost, into internal exchanger and evaporator, with car
Air heat-exchange, then pass through in-vehicle device heat exchanger from evaporator, compression is flowed back to using the low-pressure low-temperature runner of gas-liquid separator
Machine；
Adjust the electric expansion valve on the pipeline between internal exchanger and evaporator, and adjust temperature damper, in-vehicle air by
Evaporator dehumidifies and is heated by internal exchanger, and heat pump air conditioner executes dehumidifying heating cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439324.8A CN110103668A (en) | 2019-05-24 | 2019-05-24 | The heat pump air conditioner of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439324.8A CN110103668A (en) | 2019-05-24 | 2019-05-24 | The heat pump air conditioner of automobile |
Publications (1)
| Publication Number | Publication Date |
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| CN110103668A true CN110103668A (en) | 2019-08-09 |
Family
ID=67492089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910439324.8A Pending CN110103668A (en) | 2019-05-24 | 2019-05-24 | The heat pump air conditioner of automobile |
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| Country | Link |
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| CN (1) | CN110103668A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450602A (en) * | 2019-09-17 | 2019-11-15 | 上汽大众汽车有限公司 | The heat pump air conditioner of electric car |
| CN114435069A (en) * | 2022-01-13 | 2022-05-06 | 武汉格罗夫氢能汽车有限公司 | Multi-temperature-zone air conditioning box based on secondary return air mixed air and heat pump system assembly |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040000161A1 (en) * | 1998-11-04 | 2004-01-01 | Noureddine Khelifa | Cooling-heating circuit for a vehicle |
| JP2004198027A (en) * | 2002-12-18 | 2004-07-15 | Denso Corp | Vapor compression type refrigerator |
| US20070193290A1 (en) * | 2006-01-31 | 2007-08-23 | Toshiyuki Ebara | Air conditioning device |
| KR20080098936A (en) * | 2007-05-08 | 2008-11-12 | 한라공조주식회사 | Co2 air-conditioning system |
| JP2011237052A (en) * | 2010-05-06 | 2011-11-24 | Nippon Soken Inc | Heat pump cycle |
| CN107444071A (en) * | 2017-08-03 | 2017-12-08 | 南京协众汽车空调集团有限公司 | Use CO2The pump type heat electric automobile air-conditioning system and its method of work of refrigerant |
| CN107512150A (en) * | 2017-09-13 | 2017-12-26 | 艾泰斯热系统研发（上海）有限公司 | Electric automobile heat-pump air-conditioning system |
| CN107804142A (en) * | 2017-10-19 | 2018-03-16 | 珠海格力电器股份有限公司 | Heat pump system, electric automobile and heat pump control method of electric automobile |
| CN108458512A (en) * | 2018-03-13 | 2018-08-28 | 中铁工程设计咨询集团有限公司 | A kind of carbon dioxide air source heat pump system |
| CN210126407U (en) * | 2019-05-24 | 2020-03-06 | 上汽大众汽车有限公司 | Heat pump air conditioner for automobile |
-
2019
- 2019-05-24 CN CN201910439324.8A patent/CN110103668A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040000161A1 (en) * | 1998-11-04 | 2004-01-01 | Noureddine Khelifa | Cooling-heating circuit for a vehicle |
| JP2004198027A (en) * | 2002-12-18 | 2004-07-15 | Denso Corp | Vapor compression type refrigerator |
| US20070193290A1 (en) * | 2006-01-31 | 2007-08-23 | Toshiyuki Ebara | Air conditioning device |
| KR20080098936A (en) * | 2007-05-08 | 2008-11-12 | 한라공조주식회사 | Co2 air-conditioning system |
| JP2011237052A (en) * | 2010-05-06 | 2011-11-24 | Nippon Soken Inc | Heat pump cycle |
| CN107444071A (en) * | 2017-08-03 | 2017-12-08 | 南京协众汽车空调集团有限公司 | Use CO2The pump type heat electric automobile air-conditioning system and its method of work of refrigerant |
| CN107512150A (en) * | 2017-09-13 | 2017-12-26 | 艾泰斯热系统研发（上海）有限公司 | Electric automobile heat-pump air-conditioning system |
| CN107804142A (en) * | 2017-10-19 | 2018-03-16 | 珠海格力电器股份有限公司 | Heat pump system, electric automobile and heat pump control method of electric automobile |
| CN108458512A (en) * | 2018-03-13 | 2018-08-28 | 中铁工程设计咨询集团有限公司 | A kind of carbon dioxide air source heat pump system |
| CN210126407U (en) * | 2019-05-24 | 2020-03-06 | 上汽大众汽车有限公司 | Heat pump air conditioner for automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450602A (en) * | 2019-09-17 | 2019-11-15 | 上汽大众汽车有限公司 | The heat pump air conditioner of electric car |
| CN110450602B (en) * | 2019-09-17 | 2024-09-03 | 上汽大众汽车有限公司 | Heat pump air conditioner of electric automobile |
| CN114435069A (en) * | 2022-01-13 | 2022-05-06 | 武汉格罗夫氢能汽车有限公司 | Multi-temperature-zone air conditioning box based on secondary return air mixed air and heat pump system assembly |
| CN114435069B (en) * | 2022-01-13 | 2023-07-18 | 武汉格罗夫氢能汽车有限公司 | Multi-temperature-zone air conditioning box and heat pump system assembly based on secondary return air mixing |
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