CN108759153A - A kind of pump type heat automotive air-conditioning system - Google Patents
A kind of pump type heat automotive air-conditioning system Download PDFInfo
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- CN108759153A CN108759153A CN201810706518.5A CN201810706518A CN108759153A CN 108759153 A CN108759153 A CN 108759153A CN 201810706518 A CN201810706518 A CN 201810706518A CN 108759153 A CN108759153 A CN 108759153A
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- Prior art keywords
- heat exchanger
- vehicle
- valve
- way magnetic
- magnetic valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of pump type heat automotive air-conditioning systems, including being connected with compressor in turn, four-way reversing valve, interior heat exchanger, the heat pump type air conditioner refrigerant circulation loop of throttle valve and vehicle external heat exchanger, the outer supplementary heat exchanger of vehicle and bypass, the outer supplementary heat exchanger of the vehicle is in parallel with vehicle external heat exchanger and selects access heat pump type air conditioner refrigerant circulation loop participation refrigeration or heating by valve body, the bypass includes between the connection exhaust outlet of compressor and vehicle external heat exchanger, pipeline between the outer supplementary heat exchanger of exhaust outlet of compressor and vehicle simultaneously selects vehicle external heat exchanger to connect with one in supplementary heat exchanger outside vehicle with exhaust outlet of compressor by setting valve body to participate in defrosting；The present invention is by being arranged supplementary heat exchanger and bypass outside the vehicle in parallel with vehicle external heat exchanger, quickly defrosting can be carried out to supplementary heat exchanger outside the vehicle external heat exchanger and the vehicle, comfort is good, consume is small, energy consumption, control is convenient and service life is permanent under interior heat exchanger normal work.
Description
Technical field
The present invention is to be related to a kind of automotive air-conditioning system, is to be related to a kind of pump type heat automotive air-conditioning system, especially specifically
Suitable for new-energy automobile.
Background technology
Pump type heat electric automobile air conditioner is in winter in use, the problem of vehicle external heat exchanger will appear frosting.In the prior art
Being defrosted mainly to vehicle external heat exchanger using air-conditioning system, it is following to have three ways, such as：(1) it is removed in vehicle external heat exchanger frosting needs
When white, by air-conditioning system from cyclic switching is heated for refrigeration cycle, to reach defrosting purpose, although such method can be quick
Defrosting, but original heating mode is had switched, bad body-sensing is brought to passenger inside the vehicle, influences the comfort level of passenger inside the vehicle；
(2) high-temperature high-pressure refrigerant that exhaust outlet of compressor is discharged being bypassed at evaporator inlet, this method defrosting effect is good, but
It is during defrosting, interior heat exchanger can not work, and could be worked normally only after defrosting operating condition.(3) by outer
Portion's heat source defrosting, such as electric heater, heater will consume the electricity of new-energy automobile, to influence the continuous of new-energy automobile
Boat.
Defrosting is carried out in the state that heat exchanger works normally in the car to realize, has Chinese patent 201810008173.6 logical
It crosses and bypass is set at exhaust outlet of compressor, the refrigerant of compressor high temperature high pressure is connected to compressor by by-passing valve
Air entry, because the pressure of compressor air suction mouth increases, changes to increase the pressure of compressor air suction mouth air-breathing outside one side vehicle
The air velocity of heat can increase, and the air on the other hand entered from vehicle external heat exchanger is mixed with the refrigerant of high temperature and pressure, high temperature
The refrigerant of high pressure is mixed with air, and discharges heat to air, is improved to the temperature of air, to improve outside vehicle
The temperature of heat exchanger achievees the purpose that defrosting with this.The advantage of doing so is that automobile car while defrosting can be made to exchange heat
Device can still work normally.But the disadvantage is that the defrosting time is longer, compressor operating bad environments, influence compressor uses the longevity
Life.Therefore, a kind of novel automobile air-conditioner system is urgently developed in this field, can be in the premise for not influencing interior heat exchanger normal work
Lower quickly defrosting, to each component of air-conditioning system consume it is small, low energy consumption, have good comfort.
Invention content
In view of the above-mentioned problems existing in the prior art and demand, the object of the present invention is to provide a kind of pump type heat air conditioning for automobiles
System, can under the premise of not influencing interior heat exchanger normal work quickly defrosting, small, energy consumption is consumed to each component of air-conditioning system
It is low, requirement of the people to air conditioning for automobiles comfort can be met.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of pump type heat automotive air-conditioning system, including heat pump type air conditioner refrigerant circulation loop, the heat pump type air conditioner system
Refrigerant cycle circuit includes compressor, four-way reversing valve, interior heat exchanger, throttle valve and vehicle external heat exchanger, the compressor row
Gas port is connected with the input end of the four-way reversing valve, the first port of the four-way reversing valve to the of the four-way reversing valve
The interior heat exchanger, the throttle valve and the vehicle external heat exchanger, the four-way are sequentially connected between Two-port netwerk by pipeline to change
It is connected to the third port of valve with the air entry of the compressor, it is characterised in that：Further include supplementary heat exchanger and bypass outside vehicle,
The outer supplementary heat exchanger of the vehicle is in parallel with the vehicle external heat exchanger and accesses the heat pump by the way that valve body control selections one is arranged
Type air-conditioning refrigerant circulation loop participation refrigeration or heating, the bypass include outside the connection exhaust outlet of compressor and the vehicle
Pipeline between heat exchanger, between the outer supplementary heat exchanger of the exhaust outlet of compressor and the vehicle, the bypass is by being equipped with
Vehicle external heat exchanger described in valve body control selections connect ginseng with one in the outer supplementary heat exchanger of the vehicle with the exhaust outlet of compressor
With defrosting.In the case where automotive air-conditioning system carries out normally refrigeration or heating condition, may be selected the outer supplementary heat exchanger of the vehicle with it is described
One accesses the heat pump type air conditioner refrigerant circulation loop and participates in refrigeration or heating in vehicle external heat exchanger；Needing defrosting operating condition
Under, it is changed by will be directly accessed outside the vehicle outside supplementary heat exchanger or the vehicle from the part of refrigerant that the compressor is discharged
One of hot device can be realized to its defrosting operation, meanwhile, another accesses the heat pump type air conditioner refrigerant circulation loop
Heating is participated in, is realizing that the while of defrosting does not influence interior heating, setting that is simple in structure, avoiding excessive equipment, energy consumption loss
It is low, power is high.
Preferably, outside the vehicle of the throttle valve by the pipeline access parallel connection equipped with the first three-way magnetic valve
Heat exchanger and the outer supplementary heat exchanger of the vehicle, connect outside first three-way magnetic valve and the vehicle on the pipeline of supplementary heat exchanger
Equipped with the second three-way magnetic valve, third three-way magnetic valve that the exhaust outlet of compressor is equipped with by the bypass respectively with institute
State the piping connection of the second three-way magnetic valve, connection first three-way magnetic valve and the vehicle external heat exchanger, it is auxiliary outside the vehicle
It helps the branch road of the heat exchanger second port that accesses the four-way reversing valve in parallel with the vehicle external heat exchanger to be equipped with by-passing valve, leads to
It crosses the first three-way magnetic valve of setting, by-passing valve and coordinates with the bypass equipped with third three-way magnetic valve, the second three-way magnetic valve real
The selection that refrigeration, heating or defrosting are now participated in supplementary heat exchanger outside the vehicle or the vehicle external heat exchanger controls so that pipeline
Setting with valve body is succinct, control is easy, high degree of automation.
Preferably, outside the vehicle of the throttle valve by the pipeline access parallel connection equipped with the first three-way magnetic valve
Heat exchanger and the outer supplementary heat exchanger of the vehicle, connect outside first three-way magnetic valve and the vehicle on the pipeline of supplementary heat exchanger
Equipped with the second three-way magnetic valve, third three-way magnetic valve that the exhaust outlet of compressor is equipped with by the bypass respectively with institute
State the piping connection of the second three-way magnetic valve, connection first three-way magnetic valve and the vehicle external heat exchanger, it is auxiliary outside the vehicle
Help heat exchanger and the vehicle external heat exchanger by equipped with the 4th three-way magnetic valve in parallel access the second of the four-way reversing valve
Port；By be arranged the first three-way magnetic valve, the 4th three-way magnetic valve and with equipped with third three-way magnetic valve, the second threeway electromagnetism
The selection that refrigeration, heating or defrosting are participated in supplementary heat exchanger outside the vehicle or the vehicle external heat exchanger is realized in the bypass cooperation of valve
Control so that the setting of pipeline and valve body is succinct, control is easy, high degree of automation；In addition, by the way that the 4th threeway electromagnetism is arranged
One accesses the heat pump type air conditioner refrigerant and follows in the outer supplementary heat exchanger of vehicle described in valve control selections and the vehicle external heat exchanger
Loop back path participates in refrigeration or heating, when supplementary heat exchanger one breaks down outside the vehicle external heat exchanger, the vehicle, may be selected
Another accesses the heat pump type air conditioner refrigerant circulation loop and participates in refrigeration or heating, it can also be used to control and exchange heat outside the vehicle
The outer supplementary heat exchanger of device, the vehicle alternately participates in refrigeration or heating, and refrigeration or heating efficiency can be improved, prolong the service life, keep away
Exempt to be long placed in damage.
Preferably, it is additionally provided with gas on the pipeline that the four-way reversing valve is connected to the input end of the compressor
Liquid/gas separator.
Preferably, the interior heat exchanger uses parallel-flow heat exchanger.
Preferably, the vehicle external heat exchanger uses micro-channel heat exchanger.
Preferably, the outer supplementary heat exchanger of the vehicle uses micro-channel heat exchanger.
A kind of pump type heat automotive air-conditioning system, including heat pump type air conditioner refrigerant circulation loop, the heat pump type air conditioner system
Refrigerant cycle circuit includes compressor, four-way reversing valve, interior heat exchanger, throttle valve and vehicle external heat exchanger, the compressor row
Gas port is connected with the input end of the four-way reversing valve, the first port of the four-way reversing valve to the of the four-way reversing valve
The interior heat exchanger, the throttle valve and the vehicle external heat exchanger, the four-way are sequentially connected between Two-port netwerk by pipeline to change
It is connected to the third port of valve with the air entry of the compressor, it is characterised in that：Further include supplementary heat exchanger and bypass outside vehicle,
The outer supplementary heat exchanger of the vehicle is in parallel with the vehicle external heat exchanger and accesses the heat pump by the way that valve body control selections one is arranged
Type air-conditioning refrigerant circulation loop participates in refrigeration or heating, one end of the bypass and connect the car heat exchanger and section
The piping connection of valve is flowed, the other end of the bypass is connect with supplementary heat exchanger outside the vehicle external heat exchanger, the vehicle respectively, institute
It states bypass and passes through vehicle external heat exchanger described in the valve body control selections being equipped with and one and the vehicle in the outer supplementary heat exchanger of the vehicle
The exhaust outlet of interior heat exchanger is directly connected to participate in defrosting.It is optional in the case where automotive air-conditioning system carries out normally refrigeration or heating condition
It selects the outer supplementary heat exchanger of the vehicle and accesses the heat pump type air conditioner refrigerant circulation loop ginseng with one in the vehicle external heat exchanger
With refrigeration or heating；In the case where needing defrosting operating condition, by the part of refrigerant that will be discharged from the interior heat exchanger without
The throttle valve, which is directly accessed the vehicle outer one of supplementary heat exchanger or the vehicle external heat exchanger and can be realized, defrosts to it
Operation, meanwhile, another accesses described heat pump type air conditioner refrigerant circulation loop and participates in heating, realize defrost while not shadow
Interior heating is rung, is defrosted using the part of refrigerant being discharged from interior heat exchanger so that interior heating efficiency height is simultaneously
Defrosting process milder is conducive to the extension of the maintenance and service life of the outer supplementary heat exchanger of the vehicle and the vehicle external heat exchanger.
Preferably, outside the vehicle of the throttle valve by the pipeline access parallel connection equipped with the first three-way magnetic valve
Heat exchanger and the outer supplementary heat exchanger of the vehicle, connect outside first three-way magnetic valve and the vehicle on the pipeline of supplementary heat exchanger
Equipped with the second three-way magnetic valve, third three-way magnetic valve that the car heat exchanger is equipped with by the bypass respectively with it is described
The piping connection of second three-way magnetic valve, connection first three-way magnetic valve and the vehicle external heat exchanger, the vehicle assist outside
The branch road of the heat exchanger second port that accesses the four-way reversing valve in parallel with the vehicle external heat exchanger is equipped with by-passing valve, passes through
Be arranged the first three-way magnetic valve, the 4th three-way magnetic valve and with the bypass equipped with third three-way magnetic valve, the second three-way magnetic valve
Cooperation realizes that the selection that refrigeration, heating or defrosting are participated in supplementary heat exchanger outside the vehicle or the vehicle external heat exchanger controls, and makes
Pipeline and valve body setting it is succinct, control is easy, high degree of automation.
Preferably, outside the vehicle of the throttle valve by the pipeline access parallel connection equipped with the first three-way magnetic valve
Heat exchanger and the outer supplementary heat exchanger of the vehicle, connect outside first three-way magnetic valve and the vehicle on the pipeline of supplementary heat exchanger
Equipped with the second three-way magnetic valve, third three-way magnetic valve that the car heat exchanger is equipped with by the bypass respectively with it is described
The piping connection of second three-way magnetic valve, connection first three-way magnetic valve and the vehicle external heat exchanger, the vehicle assist outside
Heat exchanger and the vehicle external heat exchanger by equipped with the 4th three-way magnetic valve second end in parallel for accessing the four-way reversing valve
Mouthful；By be arranged the first three-way magnetic valve, the 4th three-way magnetic valve and with equipped with third three-way magnetic valve, the second three-way magnetic valve
Bypass cooperation realize the selection control that refrigeration, heating or defrosting are participated in supplementary heat exchanger outside the vehicle or the vehicle external heat exchanger
System so that the setting of pipeline and valve body is succinct, control is easy, high degree of automation；In addition, by the way that the 4th three-way magnetic valve is arranged
One accesses the heat pump type air conditioner refrigerant circulation in the outer supplementary heat exchanger of vehicle described in control selections and the vehicle external heat exchanger
Circuit participates in refrigeration or heating, when supplementary heat exchanger one breaks down outside the vehicle external heat exchanger, the vehicle, may be selected another
One access heat pump type air conditioner refrigerant circulation loop participates in refrigeration or heating, it can also be used to control and exchange heat outside the vehicle
The outer supplementary heat exchanger of device, the vehicle alternately participates in refrigeration or heating, and refrigeration or heating efficiency can be improved, prolong the service life, keep away
Exempt to be long placed in damage.
Compared with prior art, the present invention has the advantages that：
Pump type heat automotive air-conditioning system of the present invention is auxiliary outside the vehicle in parallel with the vehicle external heat exchanger by being arranged
Heat exchanger and bypass are helped, it can be under the premise of not influencing interior heat exchanger normal work to the vehicle external heat exchanger and the vehicle
Outer supplementary heat exchanger carries out alternately defrosting, and the quick and stable that defrosts, and interior comfort is good, is consumed to each component of air-conditioning system
It is small, low energy consumption, in addition, the present invention has many advantages, such as that simple in structure, control is convenient and service life is permanent, there is apparent progress
Property and application value.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for pump type heat automotive air-conditioning system that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of structural schematic diagram for pump type heat automotive air-conditioning system that the embodiment of the present invention 2 provides；
Fig. 3 is a kind of structural schematic diagram for pump type heat automotive air-conditioning system that the embodiment of the present invention 3 provides；
Fig. 4 is a kind of structural schematic diagram for pump type heat automotive air-conditioning system that the embodiment of the present invention 4 provides.
Figure label is schematically as follows：1, compressor；2, four-way reversing valve；20, the input end of four-way reversing valve；21, four-way
The first port of reversal valve；22, the second port of four-way reversing valve；23, the third port of four-way reversing valve；3, interior heat exchange
Device；4, throttle valve；5, vehicle external heat exchanger；6, the outer supplementary heat exchanger of vehicle；7, third three-way magnetic valve；71, third three-way magnetic valve
Left port；72, third three-way magnetic valve lower port；73, third three-way magnetic valve upper port；8, the second three-way magnetic valve；81,
Two three-way magnetic valve left ports；82, the second three-way magnetic valve right output port；83, the second three-way magnetic valve lower port；9, the first threeway
Solenoid valve；91, the first three-way magnetic valve upper port；92, the first three-way magnetic valve left port；93, the first three-way magnetic valve lower end
Mouthful；10, by-passing valve；11, gas-liquid separator；12, the 4th three-way magnetic valve.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with drawings and examples.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, below with reference to
The embodiment of attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.In this hair
In bright description, the orientation or positional relationship of the instructions such as term "upper", "lower", "front", "rear", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of description the present invention rather than require the present invention must be with specific orientation structure
It makes and operates, therefore be not considered as limiting the invention.
Embodiment 1
In conjunction with shown in Fig. 1, a kind of pump type heat automotive air-conditioning system provided in this embodiment, including heat pump type air conditioner refrigerant
The outer supplementary heat exchanger 6 of circulation loop, vehicle and bypass, the heat pump type air conditioner refrigerant circulation loop include that compressor 1, four-way change
To valve 2, interior heat exchanger 3, throttle valve 4 and vehicle external heat exchanger 5,1 exhaust outlet of the compressor and the four-way reversing valve 2 into
Mouthful end is connected, the first port 21 of the four-way reversing valve between the second port 22 of the four-way reversing valve by pipeline successively
Connect the interior heat exchanger 3, the throttle valve 4 and the vehicle external heat exchanger 5, the third port 23 of the four-way reversing valve with
The air entry of the compressor 1 is connected, and the outer supplementary heat exchanger 6 of the vehicle is in parallel with the vehicle external heat exchanger 5 and by the way that valve is arranged
Body control selections one accesses the heat pump type air conditioner refrigerant circulation loop and participates in refrigeration or heating, and the bypass includes connection
Between 1 exhaust outlet of the compressor and the vehicle external heat exchanger 5, the outer supplementary heat exchanger of 1 exhaust outlet of the compressor and the vehicle 6
Between pipeline, the bypass passes through the outer supplementary heat exchanger of vehicle external heat exchanger 5 described in the valve body control selections that are equipped with and the vehicle 6
Middle one connect participation defrosting with 1 exhaust outlet of the compressor.The automotive air-conditioning system described in the present embodiment is normally freezed
Or under heating condition, one in the outer supplementary heat exchanger of the vehicle and the 6 vehicle external heat exchangers 5 may be selected and access the pump type heat sky
Refrigerant circulation loop is adjusted to participate in refrigeration or heating；In the case where needing defrosting operating condition, pass through one will be discharged from the compressor
Point refrigerant is directly accessed the outer supplementary heat exchanger 6 of the vehicle or described vehicle external heat exchanger 5, and one of them can be realized and defrosts to it
Operation, meanwhile, another accesses described heat pump type air conditioner refrigerant circulation loop and participates in heating, realize defrost while not shadow
Interior heating is rung, setting that is simple in structure, avoiding excessive equipment, energy consumption loss is low, power is high.
In order to reduce the setting of valve body and connecting line, in the present embodiment, the throttle valve 4 is by being equipped with the first threeway
The pipeline access vehicle external heat exchanger 5 in parallel of solenoid valve 9 and the outer supplementary heat exchanger 6 of the vehicle, connect first threeway
Solenoid valve 9 and the pipeline of supplementary heat exchanger outside the vehicle 6 are equipped with the second three-way magnetic valve 8, and 1 exhaust outlet of the compressor passes through
The third three-way magnetic valve 7 that the bypass is equipped with respectively with second three-way magnetic valve 8, connect the first threeway electromagnetism
The piping connection of valve 9 and the vehicle external heat exchanger 5, outer 6 access in parallel with the vehicle external heat exchanger 5 institute of supplementary heat exchanger of the vehicle
The branch road for stating the second port 22 of four-way reversing valve is equipped with by-passing valve 10, by the way that the first three-way magnetic valve 9, by-passing valve 10 is arranged
And realized to supplementary heat exchanger 6 outside the vehicle with the bypass cooperation equipped with third three-way magnetic valve 7, the second three-way magnetic valve 8 or
The vehicle external heat exchanger 5 participates in refrigeration, the selection for heating or defrosting control so that the setting of pipeline and valve body is succinct, control is simple
Just, high degree of automation.
There is sufficient refrigerant circulation in liquid hammer and guarantee system in order to prevent, in the present embodiment, in the four-way
It is additionally provided with gas-liquid separator 11 on the pipeline that the third port 23 of reversal valve is connected to the input end of the compressor 1.
In the present embodiment, the interior heat exchanger 3 uses parallel-flow heat exchanger；The vehicle external heat exchanger 5 is using micro- logical
Road heat exchanger；The outer supplementary heat exchanger 6 of the vehicle uses micro-channel heat exchanger；Make abundant, the heat exchange height that exchanges heat in automotive air-conditioning system
Effect, further to save energy consumption and obtain preferably refrigeration or heating effect.
It is needing when defrosting to vehicle external heat exchanger 5, GM Refrigerator Working sequence is
The specific work process and principle of pump type heat automotive air-conditioning system of the present invention are as follows：Under cooling condition, control
System closes third three-way magnetic valve 7, by-passing valve 10, opens the first three-way magnetic valve 9, makes the upper port 91 of the first three-way magnetic valve
It is connected to the lower port 93 of the first three-way magnetic valve, refrigerant flows into the input end of four-way reversing valve from the exhaust outlet of compressor 1
20, then vehicle external heat exchanger 5 is flowed out to from the second port 22 of four-way reversing valve, the heat transfer that refrigerant is carried is to outdoor empty
Gas, the liquid that the refrigerant flowed out from vehicle external heat exchanger 5 becomes low-temp low-pressure by the reducing pressure by regulating flow of throttle valve 4 change into the car
Hot device 3 absorbs heat in car room and achievees the purpose that cooling refrigeration, and later, refrigerant flows into four-way reversing valve from interior heat exchanger 3
First port 21, then from the third port 23 of four-way reversing valve flow out, by gas-liquid separator 11, be inhaled into compressor again
1 participates in refrigeration cycle next time.
Under heating condition, third three-way magnetic valve 7, by-passing valve 10 are closed in control, are opened the first three-way magnetic valve 9, are made
The upper port 91 of first three-way magnetic valve is connected to the lower port 93 of the first three-way magnetic valve, exhaust of the refrigerant from compressor 1
Mouth flows into the input end 20 of four-way reversing valve, then flows out to interior heat exchanger 3 from the first port 21 of four-way reversing valve, will freeze
The heat that agent carries is passed to by air achievees the purpose that heating in car room, the refrigerant flowed out from interior heat exchanger 3 passes through
Throttle valve 4 flows into vehicle external heat exchanger 5, and later, refrigerant is flowed into from the second port 22 of four-way reversing valve, from four-way reversing valve
Third port 23 flows out, and by gas-liquid separator 11, sucks compressor 1 again and participates in heating cycle next time.
Under to 5 defrosting operating condition of vehicle external heat exchanger, third three-way magnetic valve 7 is opened in control, makes third three-way magnetic valve
Left port 71 is connected to the lower port 72 of third three-way magnetic valve, is opened the second three-way magnetic valve 8, is made the second three-way magnetic valve
Right output port 82 is connected to the lower port 83 of the second three-way magnetic valve, is opened the first three-way magnetic valve 9, is made the first three-way magnetic valve
Upper port 91 is connected to the left port 92 of the first three-way magnetic valve, opens by-passing valve 10, the refrigeration flowed out from 1 exhaust outlet of compressor
An agent part participate in heating cycle flow into four-way reversing valve 2, from the first port 21 of four-way reversing valve flow into interior heat exchanger 3 into
Row heat supply, then in turn through throttle valve 4, the upper port 91 of the first three-way magnetic valve, the left port 92 of the first three-way magnetic valve,
Right output port 82, the lower port 83 of the second three-way magnetic valve of second three-way magnetic valve flow into auxiliary vehicle external heat exchanger 6, from compressor
Another part refrigerant of 1 exhaust outlet outflow successively passes through the left port 71 of third three-way magnetic valve, third three-way magnetic valve
Lower port 72 flows into vehicle external heat exchanger 5, refrigerant heat release defrosting in vehicle external heat exchanger 5 of high temperature and pressure, from vehicle external heat exchanger 5
The refrigerant of outflow with outside vehicle supplementary heat exchanger 6 flow out flow into four-way reversing valve after the refrigerant of by-passing valve 10 mixes
Second port 22, and flowed out from the third port of four-way reversing valve 23, using being inhaled into pressure again after gas-liquid separator 11
Contracting machine 1 participates in the cycle that heats and defrost next time.
Outside to vehicle under supplementary heat exchanger defrosting operating condition, third three-way magnetic valve 7 is opened in control, makes third three-way magnetic valve
Left port 71 be connected to the upper port 73 of third three-way magnetic valve, open the second three-way magnetic valve 8, make the second three-way magnetic valve
Left port 81 be connected to the lower port 83 of the second three-way magnetic valve, open the first three-way magnetic valve 9, make the first three-way magnetic valve
Upper port 91 be connected to the lower port 93 of the first three-way magnetic valve, open by-passing valve 10, from 1 exhaust outlet of compressor flow out system
A cryogen part participates in heating cycle and flows into four-way reversing valve 2, and interior heat exchanger 3 is flowed into from the first port 21 of four-way reversing valve
Heat supply is carried out, then in turn through throttle valve 4, the upper port 91 of the first three-way magnetic valve, the lower port of the first three-way magnetic valve
93 flow into vehicle external heat exchanger 5, and another part refrigerant flowed out from 1 exhaust outlet of compressor passes through third three-way magnetic valve successively
Under left port 71, the upper port 73 of third three-way magnetic valve, the left port 81 of the second three-way magnetic valve, the second three-way magnetic valve
Port 83 flows into the outer supplementary heat exchanger 6 of vehicle, refrigerant heat release defrosting in supplementary heat exchanger 6 outside vehicle of high temperature and pressure, outside vehicle
What supplementary heat exchanger 6 flowed out flows into four after the refrigerant of by-passing valve 10 is mixed with the refrigerant flowed out from vehicle external heat exchanger 5
The second port 22 of logical reversal valve, and being flowed out from the third port of four-way reversing valve 23, using after gas-liquid separator 11 again
It is inhaled into compressor 1 and participates in the cycle that heats and defrost next time.
Embodiment 2
In conjunction with shown in Fig. 2, a kind of pump type heat automotive air-conditioning system provided in this embodiment, the difference with embodiment 1
It is only that：The throttle valve 4 passes through the pipeline access equipped with the first three-way magnetic valve 9 the vehicle external heat exchanger 5 and institute in parallel
The outer supplementary heat exchanger 6 of vehicle is stated, the pipeline for connecting the outer supplementary heat exchanger of first three-way magnetic valve 9 and the vehicle 6 is equipped with the
Two three-way magnetic valves 8, the third three-way magnetic valve 7 that 1 exhaust outlet of the compressor is equipped with by the bypass respectively with it is described
The piping connection of second three-way magnetic valve 8, connection first three-way magnetic valve 9 and the vehicle external heat exchanger 5, it is auxiliary outside the vehicle
Help heat exchanger 6 and the vehicle external heat exchanger 5 by equipped with the 4th three-way magnetic valve 12 access four-way reversing valve in parallel
Second port 22；By be arranged the first three-way magnetic valve 9, the 4th three-way magnetic valve and with equipped with third three-way magnetic valve 7, second
The bypass cooperation of three-way magnetic valve 8 is realized participates in refrigeration, heating to supplementary heat exchanger 6 outside the vehicle or the vehicle external heat exchanger 5
Or the selection control of defrosting so that the setting of pipeline and valve body is succinct, control is easy, high degree of automation；In addition, passing through setting
One accesses the heat in the outer supplementary heat exchanger 6 of vehicle described in 4th three-way magnetic valve, 12 control selections and the vehicle external heat exchanger 5
Pump-type air-conditioning refrigerant circulation loop participate in refrigeration or heating, when outside the vehicle external heat exchanger 5, the vehicle supplementary heat exchanger 6 its
When one failure, another may be selected and accesses heat pump type air conditioner refrigerant circulation loop participation refrigeration or heats, also may be used
For controlling the vehicle external heat exchanger 5, outside the vehicle, supplementary heat exchanger 6 alternately participates in refrigeration or heating, and refrigeration or system can be improved
The thermal efficiency prolongs the service life, avoids being long placed in damage.
Embodiment 3
In conjunction with shown in Fig. 3, a kind of pump type heat automotive air-conditioning system provided in this embodiment, including heat pump type air conditioner refrigerant
The outer supplementary heat exchanger 6 of circulation loop, vehicle and bypass, the heat pump type air conditioner refrigerant circulation loop include that compressor 1, four-way change
To valve 2, interior heat exchanger 3, throttle valve 4 and vehicle external heat exchanger 5,1 exhaust outlet of the compressor and the four-way reversing valve 2 into
Mouthful end is connected, the first port 21 of the four-way reversing valve between the second port 22 of the four-way reversing valve by pipeline successively
Connect the interior heat exchanger 5, the throttle valve 4 and the vehicle external heat exchanger 5, the third port 23 of the four-way reversing valve with
The air entry of the compressor 1 is connected, and the outer supplementary heat exchanger 6 of the vehicle is in parallel with the vehicle external heat exchanger 5 and by the way that valve is arranged
Body control selections one accesses the heat pump type air conditioner refrigerant circulation loop and participates in refrigeration or heating, one end of the bypass with
The piping connection of the interior heat exchanger 5 and the throttle valve 4 is connected, the other end of the bypass exchanges heat with outside the vehicle respectively
The outer supplementary heat exchanger 6 of device 5, the vehicle connects, and the bypass passes through vehicle external heat exchanger 5 and institute described in the valve body control selections being equipped with
The exhaust outlet for stating one and the interior heat exchanger 5 in the outer supplementary heat exchanger 6 of vehicle is directly connected to participate in defrosting.In air conditioning for automobiles system
System carries out under normally refrigeration or heating condition, and the outer supplementary heat exchanger 6 of the vehicle may be selected and connect with one in the vehicle external heat exchanger 5
Enter the heat pump type air conditioner refrigerant circulation loop and participates in refrigeration or heating；In the case where needing defrosting operating condition, by will be from the vehicle
The part of refrigerant that interior heat exchanger 5 is discharged is directly accessed outside the vehicle supplementary heat exchanger 6 or described without the throttle valve 4
One of them can be realized to its defrosting operation vehicle external heat exchanger 5, meanwhile, another accesses the heat pump type air conditioner refrigerant and follows
Loop back path participates in heating, does not influence interior heating while realizing defrosting, is made using the part being discharged from interior heat exchanger 3
Cryogen defrosts so that the high process milder that defrosts simultaneously of interior heating efficiency is conducive to the outer supplementary heat exchanger 6 of the vehicle and institute
State the maintenance of vehicle external heat exchanger 5 and the extension of service life.
In order to simplify structure setting, in the present embodiment, the throttle valve 4 passes through the pipe equipped with the first three-way magnetic valve 9
The road access vehicle external heat exchanger 5 in parallel and the outer supplementary heat exchanger 6 of the vehicle, connect first three-way magnetic valve 9 and institute
The pipeline for stating supplementary heat exchanger 6 outside vehicle is equipped with the second three-way magnetic valve 8, and the car heat exchanger 5 in the bypass by setting
Some third three-way magnetic valves 7 respectively with second three-way magnetic valve 8, connect first three-way magnetic valve 9 and the vehicle
The piping connection of external heat exchanger 5, the outer supplementary heat exchanger of the vehicle access four-way reversing valve in parallel with the vehicle external heat exchanger
Second port branch road be equipped with by-passing valve 10, by be arranged the first three-way magnetic valve 9, the 4th three-way magnetic valve 12 and with set
There is the bypass cooperation of third three-way magnetic valve 7, the second three-way magnetic valve 8 to realize to supplementary heat exchanger 6 outside the vehicle or the vehicle
External heat exchanger 5 participates in refrigeration, heating or the selection control mildly to defrost so that the setting of pipeline and valve body is succinct, control is easy,
High degree of automation.
The present embodiment replaces using in the present embodiment 1 using " part of refrigerant being discharged from the interior heat exchanger 3 "
" the part refrigeration machine being directly discharged from the compressor 1 " to supplementary heat exchanger 6 outside the vehicle or the vehicle external heat exchanger 5 into
Row defrosting operation, in actual operation, the valve body being equipped in heat pump type air conditioner refrigerant circulation loop described in the present embodiment and institute
The operation control principle for the valve body being equipped in bypass is stated with embodiment 1.
Embodiment 4
In conjunction with shown in Fig. 4, a kind of pump type heat automotive air-conditioning system provided in this embodiment, the difference with embodiment 3
It is only that：The throttle valve 4 passes through the pipeline access equipped with the first three-way magnetic valve 9 the vehicle external heat exchanger 5 and institute in parallel
The outer supplementary heat exchanger 6 of vehicle is stated, the pipeline for connecting the outer supplementary heat exchanger of first three-way magnetic valve 9 and the vehicle 6 is equipped with the
Two three-way magnetic valves 8, the third three-way magnetic valve 7 that the car heat exchanger 3 is equipped with by the bypass is respectively with described the
The piping connection of two three-way magnetic valves 8, connection first three-way magnetic valve 9 and the vehicle external heat exchanger 5, the vehicle assist outside
Heat exchanger 6 and the vehicle external heat exchanger 5 by equipped with the 4th three-way magnetic valve 12 access four-way reversing valve in parallel the
Two-port netwerk 22；By be arranged the first three-way magnetic valve 9, the 4th three-way magnetic valve 12 and with equipped with third three-way magnetic valve 7, second
The bypass cooperation of three-way magnetic valve 8 is realized participates in refrigeration, heating to supplementary heat exchanger 6 outside the vehicle or the vehicle external heat exchanger 5
Or the selection control of defrosting so that the setting of pipeline and valve body is succinct, control is easy, high degree of automation；In addition, passing through setting
One accesses the heat in the outer supplementary heat exchanger 6 of vehicle described in 4th three-way magnetic valve, 12 control selections and the vehicle external heat exchanger 5
Pump-type air-conditioning refrigerant circulation loop participate in refrigeration or heating, when outside the vehicle external heat exchanger 5, the vehicle supplementary heat exchanger 6 its
When one failure, another may be selected and accesses heat pump type air conditioner refrigerant circulation loop participation refrigeration or heats, also may be used
For controlling the vehicle external heat exchanger 5, outside the vehicle, supplementary heat exchanger 6 alternately participates in refrigeration or heating, and refrigeration or system can be improved
The thermal efficiency prolongs the service life, avoids being long placed in damage.
It is visible in summary：Pump type heat automotive air-conditioning system of the present invention is by being arranged with the vehicle external heat exchanger 5 simultaneously
The outer supplementary heat exchanger 6 of the vehicle of connection and bypass, can be under the premise of not influencing interior heat exchanger normal work to the vehicle
Supplementary heat exchanger 6 carries out alternately defrosting outside external heat exchanger 5 and the vehicle, and the quick and stable that defrosts, and interior comfort is good, right
Each component consume of air-conditioning system is small, low energy consumption, in addition, the present invention has, simple in structure, control is convenient and service life length is waited so long
Advantage has apparent progressive and application value.
It is last it is necessarily pointed out that：The foregoing is merely the preferable specific implementation mode of the present invention, but the present invention
Protection domain be not limited thereto, any one skilled in the art in the technical scope disclosed by the present invention,
The change or replacement that can be readily occurred in, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of pump type heat automotive air-conditioning system, including heat pump type air conditioner refrigerant circulation loop, the heat pump type air conditioner refrigeration
Agent circulation loop includes compressor, four-way reversing valve, interior heat exchanger, throttle valve and vehicle external heat exchanger, the compressor air-discharging
Mouthful it is connected with the input end of the four-way reversing valve, the first port of the four-way reversing valve to the second of the four-way reversing valve
The interior heat exchanger, the throttle valve and the vehicle external heat exchanger, the four-way commutation are sequentially connected by pipeline between port
The third port of valve is connected with the air entry of the compressor, it is characterised in that：Further include the outer supplementary heat exchanger of vehicle and bypass, institute
Stating vehicle, supplementary heat exchanger is in parallel with the vehicle external heat exchanger outside and accesses the pump type heat by the way that valve body control selections one is arranged
Air-conditioning refrigerant circulation loop participates in refrigeration or heating, and the bypass includes being changed outside the connection exhaust outlet of compressor and the vehicle
Pipeline between hot device, between the exhaust outlet of compressor and the outer supplementary heat exchanger of the vehicle, the bypass pass through the valve being equipped with
Vehicle external heat exchanger described in body control selections connect participation with one in the outer supplementary heat exchanger of the vehicle with the exhaust outlet of compressor
Defrosting.
2. automotive air-conditioning system according to claim 1, it is characterised in that：The throttle valve is by being equipped with the one or three energization
The pipeline access vehicle external heat exchanger in parallel of magnet valve and the outer supplementary heat exchanger of the vehicle, connect first three-way magnetic valve
It is equipped with the second three-way magnetic valve with the pipeline of supplementary heat exchanger outside the vehicle, the exhaust outlet of compressor passes through in the bypass
The third three-way magnetic valve being equipped with respectively with second three-way magnetic valve, connect outside first three-way magnetic valve and the vehicle
The piping connection of heat exchanger, the outer supplementary heat exchanger of the vehicle is in parallel with the vehicle external heat exchanger to access the of the four-way reversing valve
The branch road of Two-port netwerk is equipped with by-passing valve.
3. automotive air-conditioning system according to claim 1, it is characterised in that：The throttle valve is by being equipped with the one or three energization
The pipeline access vehicle external heat exchanger in parallel of magnet valve and the outer supplementary heat exchanger of the vehicle, connect first three-way magnetic valve
It is equipped with the second three-way magnetic valve with the pipeline of supplementary heat exchanger outside the vehicle, the exhaust outlet of compressor passes through in the bypass
The third three-way magnetic valve being equipped with respectively with second three-way magnetic valve, connect outside first three-way magnetic valve and the vehicle
The piping connection of heat exchanger, the outer supplementary heat exchanger of the vehicle and the vehicle external heat exchanger by equipped with the 4th three-way magnetic valve simultaneously
Couple the second port into the four-way reversing valve.
4. automotive air-conditioning system according to claim 1, it is characterised in that：In the four-way reversing valve and the compressor
Input end connection pipeline on be additionally provided with gas-liquid separator.
5. automotive air-conditioning system according to claim 1, it is characterised in that：The car heat exchanger is exchanged heat using concurrent flow
Device.
6. automotive air-conditioning system according to claim 1, it is characterised in that：The vehicle external heat exchanger uses Thermal Performance of Micro Channels
Device.
7. automotive air-conditioning system according to claim 1, it is characterised in that：The outer supplementary heat exchanger of the vehicle uses microchannel
Heat exchanger.
8. a kind of pump type heat automotive air-conditioning system, including heat pump type air conditioner refrigerant circulation loop, the heat pump type air conditioner refrigeration
Agent circulation loop includes compressor, four-way reversing valve, interior heat exchanger, throttle valve and vehicle external heat exchanger, the compressor air-discharging
Mouthful it is connected with the input end of the four-way reversing valve, the first port of the four-way reversing valve to the second of the four-way reversing valve
The interior heat exchanger, the throttle valve and the vehicle external heat exchanger, the four-way commutation are sequentially connected by pipeline between port
The third port of valve is connected with the air entry of the compressor, it is characterised in that：Further include the outer supplementary heat exchanger of vehicle and bypass, institute
Stating vehicle, supplementary heat exchanger is in parallel with the vehicle external heat exchanger outside and accesses the pump type heat by the way that valve body control selections one is arranged
Air-conditioning refrigerant circulation loop participates in refrigeration or heating, one end of the bypass and connect the car heat exchanger and throttling
The other end of the piping connection of valve, the bypass is connect with supplementary heat exchanger outside the vehicle external heat exchanger, the vehicle respectively, described
Bypass passes through vehicle external heat exchanger described in the valve body control selections being equipped with and one and the car in the outer supplementary heat exchanger of the vehicle
The exhaust outlet of heat exchanger is directly connected to participate in defrosting.
9. automotive air-conditioning system according to claim 8, it is characterised in that：The throttle valve is by being equipped with the one or three energization
The pipeline access vehicle external heat exchanger in parallel of magnet valve and the outer supplementary heat exchanger of the vehicle, connect first three-way magnetic valve
It is equipped with the second three-way magnetic valve with the pipeline of supplementary heat exchanger outside the vehicle, the car heat exchanger in the bypass by setting
Some third three-way magnetic valves respectively with second three-way magnetic valve, connect outside first three-way magnetic valve and the vehicle and change
The piping connection of hot device, the vehicle is outer, and supplementary heat exchanger is in parallel with the vehicle external heat exchanger accesses the second of the four-way reversing valve
The branch road of port is equipped with by-passing valve.
10. automotive air-conditioning system according to claim 8, it is characterised in that：The throttle valve is by being equipped with the first threeway
The pipeline access vehicle external heat exchanger in parallel of solenoid valve and the outer supplementary heat exchanger of the vehicle, connect the first threeway electromagnetism
The pipeline of valve and the outer supplementary heat exchanger of the vehicle is equipped with the second three-way magnetic valve, and the car heat exchanger passes through in the bypass
The third three-way magnetic valve being equipped with respectively with second three-way magnetic valve, connect outside first three-way magnetic valve and the vehicle
The piping connection of heat exchanger, the outer supplementary heat exchanger of the vehicle and the vehicle external heat exchanger by equipped with the 4th three-way magnetic valve simultaneously
Couple the second port into the four-way reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706518.5A CN108759153A (en) | 2018-07-02 | 2018-07-02 | A kind of pump type heat automotive air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706518.5A CN108759153A (en) | 2018-07-02 | 2018-07-02 | A kind of pump type heat automotive air-conditioning system |
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| CN108759153A true CN108759153A (en) | 2018-11-06 |
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| CN201810706518.5A Pending CN108759153A (en) | 2018-07-02 | 2018-07-02 | A kind of pump type heat automotive air-conditioning system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059664A (en) * | 1999-08-20 | 2001-03-06 | Fujitsu General Ltd | Air conditioner |
| JP2009047385A (en) * | 2007-08-22 | 2009-03-05 | Hitachi Appliances Inc | Equipment using refrigerating cycle, and air conditioner |
| CN201535589U (en) * | 2009-10-20 | 2010-07-28 | 广东美的电器股份有限公司 | Heat pump air-conditioning system |
| CN102721149A (en) * | 2012-05-08 | 2012-10-10 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN107940876A (en) * | 2017-11-03 | 2018-04-20 | 广东美的暖通设备有限公司 | The control method of air conditioner and air conditioner |
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2018
- 2018-07-02 CN CN201810706518.5A patent/CN108759153A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059664A (en) * | 1999-08-20 | 2001-03-06 | Fujitsu General Ltd | Air conditioner |
| JP2009047385A (en) * | 2007-08-22 | 2009-03-05 | Hitachi Appliances Inc | Equipment using refrigerating cycle, and air conditioner |
| CN201535589U (en) * | 2009-10-20 | 2010-07-28 | 广东美的电器股份有限公司 | Heat pump air-conditioning system |
| CN102721149A (en) * | 2012-05-08 | 2012-10-10 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN107940876A (en) * | 2017-11-03 | 2018-04-20 | 广东美的暖通设备有限公司 | The control method of air conditioner and air conditioner |
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Application publication date: 20181106 |