CN103292510B - A kind of automotive air-conditioning system - Google Patents
A kind of automotive air-conditioning system Download PDFInfo
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- CN103292510B CN103292510B CN201210042072.3A CN201210042072A CN103292510B CN 103292510 B CN103292510 B CN 103292510B CN 201210042072 A CN201210042072 A CN 201210042072A CN 103292510 B CN103292510 B CN 103292510B
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- heat exchanger
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- coolant
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 62
- 239000002826 coolant Substances 0.000 claims abstract description 148
- 238000001816 cooling Methods 0.000 claims abstract description 136
- 238000005204 segregation Methods 0.000 claims abstract description 115
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 239000003507 refrigerant Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 27
- 238000007791 dehumidification Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
A kind of automotive air-conditioning system, including compressor, vapour liquid separator, the first heat exchanger and the second heat exchanger, the 3rd heat exchanger, at least one restricting element, cooling segregation apparatus, the 3rd interface of cooling segregation apparatus is connected with the import of vapour liquid separator or compressor；When refrigeration mode or heating mode, making the coolant after throttling carry out the separation of air-liquid state coolant by described cooling segregation apparatus, the gaseous coolant after throttling returns to described vapour liquid separator from the 3rd interface of cooling segregation apparatus or returns to compressor；Further circulated by the liquid refrigerants of cooling segregation apparatus.Make air conditioning system under refrigeration or heating mode, make the coolant after throttling by cooling segregation apparatus, make the liquid refrigerants after being separated by cooling segregation apparatus participate in subsequent system after lowering the temperature to circulate, the coolant making next heat exchanger of arrival is substantially all liquid refrigerants, thus improves the efficiency of automotive air-conditioning system.
Description
Technical field
The present invention relates to automobile air conditioning technology field, dynamic particularly to a kind of electric automobile air-conditioning system or mixing
The automotive air-conditioning system of power.
Background technology
Along with the development of low-carbon economy, energy-saving and emission-reduction are proposed more strict requirements, electric automobile due to
There is the feature of energy-conserving and environment-protective, become one of development of automobile aspect from now on.But electric automobile is made owing to using battery
For power resources, its air conditioning system is also different from original automotive air-conditioning system.
Traditional internal combustion engine type automobile, it is possible to use the waste heat of internal combustion engine and the heat of engine exhaust heat
Compartment, and the power of electric automobile mostlys come from motor, the heat having lacked electromotor can utilize, from
And it is extremely difficult to the heating requirement in winter.In prior art, in order to realize the temperature in the compartment of electric automobile
Being maintained at the temperature that human body sensory is comfortable, the various ways that have employed having heats in compartment, as independent in used
Thermal source, i.e. utilizes PTC to heat；Or utilize the fuel heating such as gasoline, kerosene, ethanol；Also have adopts
Use reclaimer waste heat, then auxiliary uses independent thermal source；The employing heat pump also having ensures the temperature etc. in compartment
Deng.But, in above-mentioned various mode of heatings, according to independent thermal source, such as: purely use PTC to enter
Row heating, then need to consume the energy of more battery, and then can reduce the distance travelled of automobile；According to combustion
Material heating, not only the efficiency of heating surface is relatively low, but also can produce environment and pollute, and can increase the negative of automobile simultaneously
Carry.
Additionally use the automotive air-conditioning system of heat pump, as shown in fig. 13 that, invention entitled " electronic
Automobile heat pump air-conditioning system ", the heat pump type air conditioning system of Application No. 200510027576.8, it is by compressor
201, cross valve the 202, first check valve 203, internal condensation device 204, F type heating power expansion valve 205,
Second check valve 206, external condenser the 207, first stop valve the 208, second stop valve 209, H type heat
Power expansion valve 210a, inner evaporator 211a, gas-liquid separator 212a etc. form.It is provided with refrigeration,
Heating two kinds of mode of operations, when summer condition, the second check valve 206 and the first stop valve 208 are closed,
Heat pump type air conditioning system is kind of refrigeration cycle, and its work process is: compressor 201 consumes certain electric energy, by low
The gaseous coolant of temperature low pressure is compressed into the gaseous coolant of High Temperature High Pressure, releases when flowing through external condenser 207
Heat, coolant liberated heat is absorbed by surrounding air, itself undergoes phase transition and is condensed into liquid, and liquid is cold
Matchmaker, when flowing through H type expansion valve 210a, makes coolant blood pressure lowering lower the temperature, and absorbs when flowing through inner evaporator 211a
Heat in room air, itself undergoes phase transition and flashes to gaseous state, and the gaseous coolant of low-temp low-pressure is pressed again
Contracting machine 201 is compressed into the gaseous coolant of High Temperature High Pressure.And in the winter time operating mode time, the first check valve 203 and
Two stop valves 209 are closed, and system uses heating circulation.This system does not possess complete automobile heat pump air conditioner system
The mode of operation of system, how dehumidifying, deice mode, do not solve during such as vehicle window fogging, and additionally this system is also
Not mentioning when heating isotype, if external condenser freezes, system can not work, and how to solve；Separately
Outward when ambient temperature-5 DEG C and following time, the efficiency of its heat pump type air conditioning system is the lowest, even cannot normal work
Make.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of automotive air-conditioning system, uses heat pump, makes sky
Adjusting system, under a kind of at least within pattern freezed or heat, is made the coolant after throttling be separated by cooling and fills
Put, be returned directly to vapour liquid separator after making the gaseous coolant separation by cooling segregation apparatus or compressor is carried out
Next circulation, and make the liquid refrigerants after being separated by cooling segregation apparatus participate in subsequent system and follow
Ring, makes the coolant of next heat exchanger of arrival be substantially all liquid refrigerants, thus improves air conditioning for automobiles system
The efficiency of system.To this end, the present invention is by the following technical solutions:
A kind of automotive air-conditioning system, including compressor, is positioned at the vapour liquid separator before compressor inlet, optional
The first heat exchanger of heat exchange and the second heat exchanger is carried out, selectively with outward with selecting with air in a car compartment
Boundary's environment carries out the 3rd heat exchanger of heat exchange, at least one restricting element, described first heat exchanger it
Being provided with the first control valve in front pipeline, described second heat exchanger is connected with the outlet of described compressor
Connecing, described automotive air-conditioning system also includes that segregation apparatus of lowering the temperature, cooling segregation apparatus include three interfaces；Fall
3rd interface of temperature segregation apparatus is connected with the import of described vapour liquid separator or compressor；Described air conditioning for automobiles
System, when at least one pattern of refrigeration mode or heating mode, makes the coolant after throttling by described cooling
Segregation apparatus carries out the separation of air-liquid state coolant, and gaseous coolant is from the 3rd interface of described cooling segregation apparatus
It is returned directly to described vapour liquid separator or returns to compressor；And by the liquid refrigerants of described cooling segregation apparatus
Further circulated.First control valve can use stop valve, pays the utmost attention to the electronic control of Electromagnetic Control
Valve processed, the needs automatically controlled with realization.
Preferably, the first interface pipeline by band valve member of described cooling segregation apparatus or the pipe without valve member
Road is connected to described 3rd heat exchanger, the second interface of the described cooling segregation apparatus pipeline by band valve member
Or the pipeline without valve member is connected to described first heat exchanger or the second heat exchanger；Separate with described cooling
The first interface of device and or the pipeline that connects of the second interface in be provided with described restricting element.
Preferably, in the pipeline between first interface and described 3rd heat exchanger of described cooling segregation apparatus
It is provided with first throttle element, the second interface of described cooling segregation apparatus and described first heat exchanger or the
The pipeline that two heat exchangers connects is provided with second section fluid element；First throttle element is provided with first
Bypass flow path, is provided with the first check valve in the first bypass flow path, the first check valve is from described 3rd heat exchange
Device cuts out when leading to the direction of cooling segregation apparatus, then turns on time reversely；For second section fluid element, and
Connection is provided with the second bypass flow path, and the second bypass flow path is provided with the second check valve, and the second check valve is cold
Matchmaker closed when described first heat exchanger or the second heat exchanger lead to cooling segregation apparatus direction, and reverse
Time then turn on；Described first throttle element and second section fluid element selectively turn on one of them and save
Stream.
Alternatively, described automotive air-conditioning system includes that second section fluid element, described second section fluid element are arranged on
The pipe that second interface of described cooling segregation apparatus is connected with described first heat exchanger or the second heat exchanger
Lu Zhong；The pipeline that the first interface of described cooling segregation apparatus is connected with described 3rd heat exchanger does not has
Restricting element is set；Entering of 3rd interface of described cooling segregation apparatus and described vapour liquid separator or compressor
The pipeline that mouth connects is provided with the 4th control valve；When heating mode, the 4th control valve is opened, and makes warp knuckle
The separation that coolant after stream carries out gaseous coolant at cooling segregation apparatus is lowered the temperature with making liquid refrigerants, gaseous coolant
It is returned directly to described vapour liquid separator from the 3rd interface of described cooling segregation apparatus or returns to compressor；And
Under refrigeration mode, the 4th control valve is closed, and cooling segregation apparatus does not carry out separation and the cooling of gaseous coolant.
Alternatively, described automotive air-conditioning system includes that first throttle element, described first throttle element are arranged on
In the pipeline that the first interface of described cooling segregation apparatus is connected with described 3rd heat exchanger；Described cooling divides
It is provided with in the pipeline that the 3rd interface of device is connected with the import of described vapour liquid separator or compressor
Four control valves；When heating mode, the 4th control valve is closed, and cooling segregation apparatus does not carry out gaseous coolant
Separate and cooling；And in cooling mode, the 4th control valve is opened, make the coolant after throttling in cooling point
The separation carrying out gaseous coolant from device is lowered the temperature with making liquid refrigerants, and gaseous coolant is from described cooling segregation apparatus
The 3rd interface be returned directly to described vapour liquid separator or return to compressor.
Alternatively, described automotive air-conditioning system also includes cross valve, and wherein the high-pressure inlet of cross valve is with described
The outlet of the second heat exchanger connects, and the import that the low pressure of cross valve is answered back with described vapour liquid separator is connected,
Two other interface of cross valve: first interface pipeline is connected to described 3rd heat exchanger, the second interface leads to
Crossing the 3rd control valve and connect described cooling segregation apparatus, the two interface can enter according to the needs of operational mode
Row switching, when refrigeration mode, the high-pressure inlet of cross valve turns on first interface, and the second interface is with low
Pushing back mouth conducting, the 3rd control valve is closed；And when heating mode, the high-pressure inlet of cross valve and second connects
Mouthful conducting, and first interface and low pressure are answered back conducting, the 3rd control valve unlatching.
Alternatively, being provided with three-way valve in the pipeline after described second heat exchanger, the first of three-way valve goes out
Mouth is connected with described 3rd heat exchanger and connects described vapour liquid separator by the second control valve；Described three
Second outlet of logical valve is connected with described first control valve and is connected with cooling segregation apparatus pipeline or passes through
Restricting element or bypass flow path are connected with cooling segregation apparatus pipeline；
Alternatively, the pipeline after described second heat exchanger is provided with two electromagnetic valves: the first electromagnetism
Valve, the second electromagnetic valve control to lead to described 3rd heat exchanger the most afterwards from described second heat exchanger respectively
Refrigerant flow and lead to the refrigerant flow of described cooling segregation apparatus the most afterwards from described second heat exchanger
Break-make, wherein the first electromagnetic valve and the second electromagnetic valve optionally turn on one of them；First electromagnetism
Valve is connected with described 3rd heat exchanger pipeline and connects described vapour liquid separator by the second control valve；The
Two electromagnetic valves are connected with described first control valve, simultaneously the second electromagnetic valve with cooling segregation apparatus pipeline be connected,
Or be connected with cooling segregation apparatus pipeline by restricting element or bypass flow path.
Preferably, described compressor is the compressor having Two-stage Compression function, the of described cooling segregation apparatus
Three interfaces are connected with the secondary inlet of described compressor, the outlet of described vapour liquid separator and described compressor
One-level import connects.
Preferably, described automotive air-conditioning system is when dehumidification mode, and the wind being sent in compartment is to first pass through coolant
The first heat exchanger that temperature is low dries, passes through the second high heat exchanger of refrigerant temperature the most again, in institute
State the second heat exchanger system to can choose whether to heat, i.e. can carry out according to temperature conditions in compartment
Choose whether to heat, the most again wind is delivered in compartment.
Preferably, described 3rd heat exchanger is additionally provided with bypass passageways, when dehumidification mode, and High Temperature High Pressure
Coolant is by, after the second heat exchanger, selecting to be by described 3rd heat exchanger or by described bypass
Passage；And described bypass passageways uses stop valve or electromagnetic valve to control whether to turn on.
Restricting element pays the utmost attention to electric expansion valve, to increase the accuracy controlled under each pattern, to carry
The comprehensive energy efficiency of high system.
Compared with prior art, the invention have the advantages that due to when refrigeration mode or heating mode,
Make coolant by cooling segregation apparatus after throttling, on the one hand make liquid refrigerants to lower the temperature further, and make gas
State coolant is returned directly to vapour liquid separator or compressor, makes arrival the first heat exchanger or the 3rd heat exchanger
Coolant strengthens with the temperature difference of air stream, and the coolant simultaneously making the first heat exchanger or the 3rd heat exchanger is basic
It is all liquid refrigerants, makes heat exchange effect improve further, so that the working range of this heat pump can obtain increasing
Greatly, and improve the operational efficiency of heat pump；Pipeline at the second heat exchanger outlet uses control valve simultaneously
The flow of the coolant controlled and the flow direction, advantageously reduce the flow resistance of coolant.
It addition, the automotive air-conditioning system of the present invention also includes dehumidification mode and deice mode, otherwise for compartment
Interior temperature controls to be respectively provided with the first heat exchanger and the second heat exchanger, and both are respectively provided with, and the
Only by only by cold coolant or not passing through in the coolant of heat, the first heat exchanger in two heat exchangers；This
Sample can avoid the impact of high/low temperature in the two heat exchanger, and during dehumidification mode, hands over opening the first heat
Parallel operation carry out except mist or dehumidifying while, can open simultaneously the second heat exchanger heat dehumidifying after air,
Realize the effect that dehumidifies simultaneously and heat, it is ensured that the humiture in compartment, thus meet in compartment comfortable
Degree requirement.
Accompanying drawing explanation
Fig. 1 is the first detailed description of the invention of the present invention pipeline connection diagram when refrigeration mode；
Fig. 2 is the first detailed description of the invention of the present invention pipeline connection diagram when heating mode；
Fig. 3 is the first detailed description of the invention of the present invention pipeline connection diagram when dehumidification mode；
Fig. 4 is the first detailed description of the invention of the present invention pipeline connection diagram when deice mode；
Fig. 5 is the schematic diagram that the second detailed description of the invention pipeline of the present invention connects；
Fig. 6 is the schematic diagram that the third detailed description of the invention pipeline of the present invention connects；
Fig. 7 is the schematic diagram that the 4th kind of detailed description of the invention pipeline of the present invention connects；
Fig. 8 is the schematic diagram that the 5th kind of detailed description of the invention pipeline of the present invention connects；
Fig. 9 is the schematic diagram that the 6th kind of detailed description of the invention pipeline of the present invention connects；
Figure 10 is the schematic diagram that the 7th kind of detailed description of the invention pipeline of the present invention connects；
Figure 11 is the schematic diagram that the 8th kind of detailed description of the invention pipeline of the present invention connects；
Figure 12 is the schematic diagram that the 9th kind of detailed description of the invention pipeline of the present invention connects；
Figure 13 is the schematic diagram that a kind of existing electric automobile air-conditioning system pipeline connects.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the most right
The detailed description of the invention of the present invention is described in detail.
The automotive air-conditioning system of the present invention belongs to heat pump, including: refrigeration mode, heating mode, dehumidifying
Pattern (or claiming defogging mode), four kinds of mode of operations of deice mode (or claiming defrosting mode).The present invention's
As Figure 1-Figure 4, wherein Fig. 1 is the first detailed description of the invention of the present invention to the first detailed description of the invention
Pipeline connection diagram when refrigeration mode, Fig. 2 is that the first detailed description of the invention of the present invention is heating mould
Pipeline connection diagram during formula, Fig. 3 is the first detailed description of the invention of the present invention pipe when dehumidification mode
Road connection diagram, Fig. 4 is that the pipeline connection when deice mode of the first detailed description of the invention of the present invention is shown
Being intended to, wherein the dotted line in figure represents at this that pipeline cuts off in this mode and does not circulate.
As it can be seen, before the automotive air-conditioning system of the present invention includes compressor 1, is positioned at compressor inlet
Vapour liquid separator 9 and external environment carry out the 3rd heat exchanger 3 of heat exchange, first throttle element 4,
Second section fluid element 6, air-conditioning box 100, air-conditioning box 100 for regulate the temperature in compartment and or humidity,
Air-conditioning box 100 includes first heat exchanger the 101, second heat exchanger 102, blower fan 104, temperature damper
105, grid and air channel 109, cycle throttle 106, is additionally provided with first section before the first heat exchanger 101
Only valve 7, the outlet of the first heat exchanger 101 connects the import of vapour liquid separator 9, the second heat exchanger 102
Import be connected with compressor outlet；First heat exchanger the 101, second heat exchanger 102 is according to compartment
Interior duty requirements selects to carry out heat supply, cooling to described compartment or remove mist, specifically can be arranged in compartment,
Can also be arranged at outside compartment and be blown in compartment by air supply duct.Pipe after second heat exchanger 102
Being provided with three-way valve 2 in road, three-way valve 2 can use the three-way switch valve of Mechanical course, but pay the utmost attention to
The three-way valve of Electromagnetic Control, is so easily achieved and automatically controls.After first outlet of three-way valve 2 first
Stream 210 respectively leads to the 3rd heat exchanger 3 and the second stop valve 8, the second outlet of three-way valve 2
After second flow path 220 lead to the pipeline between the first stop valve 7, second section fluid element 6, the second cut-off
The outlet of valve 8 is connected to the import of vapour liquid separator 9.This embodiment does not has cross valve, thus is avoided that
In cross valve between two runners of high/low temperature mutually flowing time high/low temperature heat transfer loss, and fluid stream
Resistance time dynamic also can be relatively reduced；And the input at initial stage is relatively fewer, it is the most convenient to manufacture, and so can
Ensure the service life of air conditioning system, be simultaneously fabricated into and be originally relatively low.
The air conditioning system of this embodiment also includes that segregation apparatus 5 of lowering the temperature, cooling segregation apparatus 5 include and the
One restricting element 4 connect first interface 51 is connected with second section fluid element 6 the second interface 52, company
Receive the 3rd interface 53 of the import of vapour liquid separator 9 (or compressor)；First throttle element 4 is arranged on
In pipeline between 3rd heat exchanger 3 and cooling segregation apparatus 5, it is provided with for first throttle element 4
First bypass flow path in parallel with first throttle element 4, the first bypass flow path is provided with the first check valve
12, the first check valve 12 was closed when described 3rd heat exchanger 3 leads to the direction of cooling segregation apparatus 5,
Then turn on time reversely；For second section fluid element 6, the second bypass flow path, the second bypass are arranged in parallel it
Being provided with the second check valve 13 on stream, the second check valve 13 leads to from described first stop valve 7 at coolant
Close during cooling segregation apparatus 5 direction, then turn on time reversely；Second section fluid element 6 and the second bypass stream
The pipeline that road comes with the second outlet of the first stop valve 7, three-way valve 2 is connected；Coolant can connect from first
Mouth the 51, second interface 52 enters cooling segregation apparatus 5, and then liquid refrigerants flows out from another interface, and
Gaseous coolant outflows back to compressor from the 3rd interface.
When needing refrigeration in car summer, air conditioning system switches to refrigeration mode.In cooling mode, first
Stop valve 7 is opened, and the second stop valve 8 is closed, and three-way valve 2 leads to the first outlet of the 3rd heat exchanger 3
Conducting, three-way valve 2 leads to the first stop valve 7, second port closing in second section fluid element 6 direction.Pressure
Contracting machine 1 consumes certain electric energy, and the gaseous coolant of low-temp low-pressure is compressed into the gaseous coolant of High Temperature High Pressure,
Flow through the second heat exchanger 102 and flow to the 3rd heat exchanger 3 by three-way valve 2.At the 3rd heat exchanger
In 3 under the cooling condensation of cooling air stream B, High Temperature High Pressure coolant is released heat and is released to environment sky
In gas, cooled undergoing phase transition itself and be condensed into liquid, or vehicle repair major mixed state.Liquid refrigerants exists
After the 3rd heat exchanger 3, owing to first this direction of check valve 12 is not turned on, i.e. first segment
First bypass flow path of fluid element 4 is not turned on, so coolant is throttled by first throttle element 4, then arrives
Reaching cooling segregation apparatus 5, at this moment coolant is in cooling segregation apparatus 5, due to the of cooling segregation apparatus 5
Three interfaces 53 are attached to vapour liquid separator 9, and the pressure at vapour liquid separator 9 is relatively low, institute
Vapor-liquid separation is returned to together with gaseous coolant there to be part liquid refrigerants to evaporate in cooling segregation apparatus 5
Device and compressor, so that liquid refrigerants cooling.By the separation of segregation apparatus 5 of lowering the temperature, gaseous coolant leads to
The 3rd interface 53 crossing cooling segregation apparatus 5 is connected to vapour liquid separator 9, passes through after liquid refrigerants cooling
Second interface 52 of cooling segregation apparatus 5 flows out, and then passes through the second bypass of second section fluid element 6
Stream, then arrives the first heat exchanger 101 by the first stop valve 7, and the liquid refrigerants of low-temp low-pressure exists
In first heat exchanger 101, absorb the heat in air stream A, after coolant absorbs heat, itself phase occurs
Become or part phase transformation and flash to gaseous state, and make cooling in compartment；Coolant arrives vapour liquid separator 9, coolant again
After vapour liquid separator 9, the gaseous coolant of low-temp low-pressure is compressed into the gaseous state of High Temperature High Pressure again by compressor 1
Coolant, so circulates work.Air stream A is played conveying effect by blower fan 104.Air stream A passes through first
Heat exchanger 101, by cool-down dehumidification, through grid and air channel 109, is sent into car indoor, is reduced the temperature that car is indoor
Degree, to provide comfortable environment by bus.The control of air stream A temperature is achieved in that can be according to need
Wanting, the opening angle of temperature damper 105 determine to flow through the ratio of the second heat exchanger 102, heating flows through
The air stream of the second heat exchanger 102, then mix with original air stream, and reach required temperature.
Wherein, air stream A is the mixing wind flowing through interior circulating air opening 107 and fresh wind port 108, and mixed proportion can
By system according to comfortableness requirement, cycle throttle 106 it is controlled.And circulated air can enter one in introducing
The saving power consumption of step.It addition, in cooling mode, the temperature damper 105 of the second heat exchanger 102 is made
Aperture is zero, allows air channel bypass, and does not allow wind through the second heat exchanger 102.When the gaseous state of High Temperature High Pressure is cold
Matchmaker from compressor 10 out, when the second heat exchanger 102, owing to now there is no wind process, so,
Coolant through the second heat exchanger 102 will not produce heat exchange with air.Restricting element can select heating power
Expansion valve or electric expansion valve.First stop valve 4 and the second stop valve 7 can use mechanical stop valve,
But preferentially select electromagnetic control type, the needs automatically controlled with realization.
Due to when refrigeration mode, the heat generating components such as the battery of electric automobile, motor inverter is to need too
Want certain cooling degree, to this end, present embodiment may be used without corresponding airduct introduce phase from air channel
Battery is cooled down by the cold wind answered.One return air inlet additionally can also be set in compartment, compartment will be blowed to
Interior cold wind is sent to the heat generating components such as battery, to cool down the heating parts such as battery behind compartment again by airduct
Part.
When needing heat winter, system switches to heating mode；As in figure 2 it is shown, at this moment the first stop valve
7 close, and the second stop valve 8 is opened, and three-way valve 2 leads to the first port closing of the 3rd heat exchanger 3,
Three-way valve 2 leads to the second outlet conducting of the first stop valve 7, cooling segregation apparatus 5.
Compressor 1 consumes certain electric energy, and the gaseous coolant of low-temp low-pressure is compressed into the gaseous state of High Temperature High Pressure
Coolant, flows through the second heat exchanger 102, and under the cooling of Cryogenic air stream A, the heat of coolant passes to
Air stream A, itself undergoes phase transition and condenses, then by the second outlet of three-way valve 2 through second flow path
220, when arriving second section fluid element 6, due to the second check valve 13 at coolant from described first stop valve
7 or three-way valve 2 lead to cooling segregation apparatus 5 direction time be not turned on, the most now the second bypass flow path
It is not turned on, so coolant is throttled by second section fluid element 6, by the second of segregation apparatus 5 of lowering the temperature
Interface 52 arrives cooling segregation apparatus 5, by the separation of segregation apparatus 5 of lowering the temperature, after liquid refrigerants cooling
Flowed out by the first interface 51 of cooling segregation apparatus 5, then pass through the first of first throttle element 4
Bypass flow path, then arrives the 3rd heat exchanger 3, and the gaseous coolant through cooling segregation apparatus 5 then leads to
Cross the 3rd interface 53 and return to vapour liquid separator 9, be then return to compressor 1.
What the first interface 51 through cooling segregation apparatus 5 flowed out is entirely the liquid refrigerants after temperature reduces,
The 3rd heat exchanger 3 is arrived, at the 3rd heat exchanger 3 coolant and Cryogenic air stream by the first bypass flow path
B carries out heat exchange, absorbs its heat of vaporization and becomes the gaseous coolant of low-temp low-pressure or the cold of gas-liquid two-phase
Matchmaker.So, owing to being reduced further by the temperature of the liquid refrigerants of cooling segregation apparatus 5, so, arrive
The temperature of the coolant reaching the 3rd heat exchanger 3 is relatively low, and adds and arrives the cold of the 3rd heat exchanger 3
Matchmaker and the temperature difference of external environment condition, so that this system can absorb heat from the low temperature environment of lower temperature, real
The function of existing heat pump.It addition, by the separation of segregation apparatus 5 of lowering the temperature, arrive the whole of the 3rd heat exchanger
Being liquid refrigerants, so, can be improved at the 3rd heat exchanger 3 heat exchange effect, coolant is empty with low temperature
The exchange effect of air-flow B is also improved；Then coolant passes through the second stop valve 8, then to vapour liquid separator
9, through the separation of vapour liquid separator 9, liquid refrigerants is stored in vapour liquid separator 9, the gas of low-temp low-pressure
State coolant is compressed into the gaseous coolant of High Temperature High Pressure again by compressor 1, so circulates work.So, pass through
Cooling segregation apparatus 5, on the one hand makes the coolant of arrival the 3rd heat exchanger 3 strengthen with the temperature difference of external environment condition,
The coolant simultaneously making the 3rd heat exchanger is all liquid refrigerants, makes heat exchange effect improve further, thus
The working range making this heat pump can obtain increase, and Energy Efficiency Ratio improves.Similarly, blower fan 104 is to air stream A
Play conveying effect.Air stream A is heated by the second heat exchanger 102, through grid and air channel 109, send
Enter car indoor, increase the temperature that car is indoor, it is provided that comfortable environment by bus.Wherein, air stream A is stream
Through interior circulating air opening 107 and the mixing wind of fresh wind port 108, mixed proportion system can according to comfortableness requirement,
It is controlled by cycle throttle 106.And the ratio of interior circulated air however cause vehicle window fogging, and follow in introducing
Ring wind can further save power consumption.If ambient temperature is the lowest, the heating properties of heat pump is not enough, or leads
The pyrogenicity efficiency of pump is relatively low, or even results in heat pump when cannot work, and electric heater 103 can be used to assist and add
Heat, realizes heating function together with heat pump.So, the working range of this system strengthens further, from
And expand the range of air conditioning for automobiles, particularly in the low cold region of low temperature.
It is not allow coolant pass through the first heat exchanger 101, so when the automotive air-conditioning system of the present invention heats
Heat exchange will not be carried out when the wind of blower fan 104 blowout is by the first heat exchanger 101, and directly arrive coolant
The second heat exchanger 102 that temperature is high carries out heat exchange.
When needing to remove the fog on the dampness of air in a car compartment or glass, start dehumidification mode, such as Fig. 3
Shown in, the first stop valve 7 is opened, and the second stop valve 8 is closed, and three-way valve 2 leads to the 3rd heat exchanger 3
The first outlet conducting, three-way valve 2 leads to the first stop valve 7, the second of second section fluid element 6 direction goes out
Mouth is closed.Compressor 1 consumes certain electric energy, and the gaseous coolant of low-temp low-pressure is compressed into High Temperature High Pressure
Gaseous coolant, flows through the second heat exchanger 102 and flows to the 3rd heat exchanger 3 by three-way valve 2.?
Two heat exchangers 102 system can select whether coolant carries out heat exchange, i.e. when temperature is relatively low with air stream
Heat exchange can be carried out with cooling air stream A at the second heat exchanger 102, and when temperature is of a relatively high
Heat exchange can not also be carried out at the second heat exchanger 102, and it is empty with outside to be selected at the 3rd heat exchanger
Gas carries out heat exchange.
Coolant is after the 3rd heat exchanger 3, owing to first this direction of check valve 12 is not turned on,
I.e. the first bypass flow path of first throttle element 4 is not turned on, so coolant is by first throttle element 4
Throttling, so coolant is throttled by first throttle element 4, then arrives cooling segregation apparatus 5, and coolant exists
In cooling segregation apparatus 5, by the separation of segregation apparatus 5 of lowering the temperature, gaseous coolant is by cooling segregation apparatus
3rd interface 53 of 5 is connected to vapour liquid separator 9, by cooling segregation apparatus 5 after liquid refrigerants cooling
The second interface 52 flow out, then pass through the second bypass flow path of second section fluid element 6, then pass through
First stop valve 7 arrives the first heat exchanger 101, and the air that here liquid refrigerants is indoor with car carries out heat
Exchange, owing to the surface temperature of the first heat exchanger 101 is much lower relative to temperature in compartment, therefore at this
During, the dew point temperature of the air before the first heat exchanger 101 is higher than the surface of the first heat exchanger 101
Temperature, thus has moisture and condenses on the surface of the first heat exchanger 101 and separate out and pass through setting
Pipeline is discharged, and the content that this reduces the water vapour in air in a car compartment i.e. reduces relative humidity, from
And reach dehumidifying or the purpose except mist in compartment.The liquid refrigerants of low-temp low-pressure is at the first heat exchanger 101
In, absorb the heat in air stream A, coolant itself undergo phase transition after absorbing heat or part phase transformation and steam
Sending out into gaseous state, coolant arrives vapour liquid separator 9 again, coolant after vapour liquid separator 9, the gaseous state of low-temp low-pressure
Coolant is compressed into the gaseous coolant of High Temperature High Pressure again by compressor 1, so circulates work.Similarly blower fan
104 couples of air stream A play conveying effect, air stream A by the first heat exchanger 101 by cool-down dehumidification,
Through grid and air channel 109, send into car indoor, reduce the temperature that car is indoor, to provide comfortable environment by bus.
The control of air stream A temperature is achieved in that can as required, by the opening angle of temperature damper 105
Degree determines to flow through the ratio of the second heat exchanger 102, and heating flows through the air stream of the second heat exchanger 102,
Mix with original air stream again, and reach required temperature.Wherein, in air stream A is for flowing through
The mixing wind of circulating air opening 107 and fresh wind port 108, mixed proportion can by system according to comfortableness requirement, by
Cycle throttle 106 is controlled.And circulated air can further save power consumption in introducing.If it addition,
When temperature is higher, it is possible to so that temperature damper 105 aperture of the second heat exchanger 102 is zero, allow air channel
Bypass, does not allow wind through the second heat exchanger 102, and makes coolant carry out with the external world at the 3rd heat exchanger 3
Heat exchange；So, when High Temperature High Pressure gaseous coolant from compressor 10 out, through the second heat exchanger
When 102, air door is to close, so, the coolant through the second heat exchanger 102 will not produce with air
Heat exchange.And when the temperature is low, temperature damper 105 aperture that can make the second heat exchanger 102 is maximum,
Allow wind through the second heat exchanger 102, after making the air after dehumidifying heat up, through grid and air channel
109, send on car indoor or vehicle window, make temperature can be able to humidity and controlled simultaneously, thus make car
Indoor comfort level is improved.
So during dehumidification mode, the wind being sent in compartment is to first pass through the first heat exchanger that refrigerant temperature is low
101 dry, the most again by high the second heat exchanger 102 of refrigerant temperature, at the second heat exchanger 102
Can choose whether to heat, i.e. can carry out choosing whether to heat according to temperature conditions in compartment,
The most again wind is delivered in compartment, if temperature is higher, it is possible to temperature damper 105 is closed, makes coolant
Heat exchange is not carried out with air at the second heat exchanger 102；And temperature is relatively low, it is possible to by temperature damper
105 open to a certain degree or standard-sized sheet, make coolant carry out heat exchange at the second heat exchanger 102 with air.This
Sample, it is ensured that the humidity in compartment and temperature, i.e. meets comfort level requirement.If additionally needing quickly to remove
When removing the fog on glass or steam, can direct closing temperature air door 105, and by corresponding airduct, directly
Connect and cold wind is blowed to glass, reach to rapidly remove the purpose of glass surface mist.
Additionally when winter, air-conditioning is substantially under heating mode operation, and at this moment the 3rd heat exchanger 3 is
For cold scattering, and some area outer temperature of car is relatively low, when ambient temperature is less than zero degree or close to zero degree,
After heating mode work certain time, easily make the 3rd heat exchanger 3 frosting or icing, and then impact heat
The efficiency of pump operation even loses heat dispersion, it is therefore desirable to start deice mode, in other words defrosting mode.
Specifically, the air conditioning system of the present invention when deice mode ruuning situation as shown in Figure 4, at this moment, first section
Only valve 7 is opened, and the second stop valve 8 is closed, and three-way valve 2 leads to the first outlet guide of the 3rd heat exchanger 3
Logical, three-way valve 2 leads to the first stop valve 7, second port closing in second section fluid element 6 direction, blower fan
104 close.Compressor 1 consumes certain electric energy, and the gaseous coolant of low-temp low-pressure is compressed into High Temperature High Pressure
Gaseous coolant, flow through the second heat exchanger 102.Now, blower fan 104 does not works, so not having air
Stream A, the most there is not heat exchange, High Temperature High Pressure at the second heat exchanger 102 in the gaseous coolant of High Temperature High Pressure
Gaseous coolant by three-way valve 2 first outlet after first flow path 210 flow to the 3rd heat exchanger 3,
Release heat at the 3rd heat exchanger 3, make the ice (white) on the 3rd heat exchanger 3 surface rapidly remove, extensive
Replicate hot property.Coolant itself undergoes phase transition and is condensed into liquid or partial condensation becomes liquid；Then coolant leads to
Cross first throttle element 4, owing to during this direction, the first check valve 12 of the first bypass flow path is to be not turned on
, so coolant is by entering cooling segregation apparatus 5 by first interface 51 after first throttle element 4；
Gaseous coolant just returns to compressor by the 3rd interface 53 of cooling segregation apparatus 5 by vapour liquid separator 9
1, restart next circulation, so circulation work carries out deicing.；And liquid refrigerant is by cooling point
The second interface 52 from device 5 returns to vapor-liquid separation by first stop valve the 7, first heat exchanger 101
Device 9, and being stored in vapour liquid separator 9, the first heat exchanger 101 liquid refrigerants the most not with outside
Carry out heat exchange.
Just having started deicing at the end of deicing at deice mode, the pressure-enthalpy chart of its coolant is a dynamic change
The process changed, when deice mode, liquid refrigerants stays stores the coolant liquid storage space at vapour liquid separator 9,
So the capacity requirement of the coolant liquid storage space of vapour liquid separator 9 is at described heat pump coolant injection
The 30-60% of amount.
Generally, be not carry out heat exchange at the second heat exchanger 102 but it also may select into
Row heat exchange is with the temperature in guarantee compartment；As wanted quick deicing the most not allow the second heat exchanger 102 carry out heat
Exchange, the temperature of the coolant so arriving the 3rd heat exchanger 3 can be some higher, and the time of deicing or frost is also
Just can be shorter.Usually, the time that deice mode runs is the most relatively short, typically left at 3-4 minute
Right；By the time, after deicing terminates, mode of operation can be returned to heating mode and run.
From four kinds of mode of operations above it can be seen that the automotive air-conditioning system of the present invention is in compartment
Temperature and Humidity Control is respectively provided with the first heat exchanger 101 and the second heat exchanger 102, the second heat exchanger
102 coolant by heat, and the first heat exchanger 101 is by low temperature coolant, both are respectively provided with,
And first heat exchanger 101 and the second heat exchanger 102 be the checker not having high/low temperature, can keep away
Exempting from the impact of high/low temperature in the two heat exchanger, so both can be designed improving its heat exchange respectively
Efficiency, can avoid the impact of high/low temperature in the two heat exchanger simultaneously, so can improve service life；
And during dehumidification mode, air can pass through the first heat exchanger 101 and the second heat exchanger 102 simultaneously, real
The effect the most simultaneously dehumidified and heat, it is ensured that the humiture in compartment, thus meet the comfort requirement in compartment.
The second detailed description of the invention of the present invention is described below, and Fig. 5 is that the second of the present invention is embodied as
The pipeline connection diagram of mode.The one that present embodiment is above in the first detailed description of the invention changes
Entering, specifically, in present embodiment, compressor is the compressor 10 having Two-stage Compression function.Flow through cooling
The gaseous coolant of segregation apparatus 5, is returned directly to compressor by the 3rd interface 53 of cooling segregation apparatus 5
The secondary inlet 10a of 10 is compressed rather than all arrives compressor again by vapour liquid separator 9,
Remaining liquid refrigerants is then similar to embodiment described above, first passes through vapour liquid separator 9 again by pressure
The one-level import 10b of contracting machine, to compressor 10, so arranges the overall power that can reduce compressor,
Improve efficiency, save electric energy, thus improve distance travelled.
The third detailed description of the invention of the present invention is described below, and Fig. 6 is the third specific embodiment party of the present invention
The pipeline connection diagram of formula.Same present embodiment is also above in the first detailed description of the invention
Planting and improve, specifically, the 3rd heat exchanger 3 is provided with a bypass passageways by present embodiment, in dehumidifying
During pattern, export between vapour liquid separator 9, control this refrigerant flow 211 break-make from the first of three-way valve 2
The second stop valve 8 close, the coolant of High Temperature High Pressure is by after three-way valve 2, by the first of three-way valve 2
Outlet, after first flow path 210, can select to carry out heat exchange or by bypass by the 3rd heat exchanger 3
Passage 212 by and do not flow to the 3rd heat exchanger 3；It addition, bypass passageways 212 uses stop valve or electricity
Magnet valve 11 controls on-off.So when temperature is relatively low, can select not by the 3rd heat exchanger 3,
Such that it is able to reduce because coolant flows through the 3rd heat exchanger 3 to outdoor heat radiation, thus cause thermal loss,
Thus save electric energy, improve distance travelled；The 3rd heat exchanger 3 is not additionally flowed to because of coolant, but directly
Flowing through bypass passageways, so, coolant directly passes through from the stream of bypass passageways, and equally composition is complete
Heat pump, the pressure loss of coolant can also reduce, thus improve the efficiency of system, it is to avoid the energy
Waste, improve heat pump Energy Efficiency Ratio.Other three kinds of operational modes are referred to the first tool above
Body embodiment, the most no longer illustrates.
The four kind detailed description of the invention of the present invention is described below, as it is shown in fig. 7, Fig. 7 is the present invention's
4th kind of detailed description of the invention, in present embodiment, compressor is the compressor 10 with Two-stage Compression function；
It is simultaneous for the 3rd heat exchanger 3, is provided with coolant bypass passageways 212 equally, and with stop valve or electromagnetism
Valve 11 controls the on or off of bypass passageways 212；And make cooling segregation apparatus 5 gaseous coolant
Three interfaces 53 are connected to the secondary inlet 10a of compressor 10, carrying out practically process and operational mode can join
According to other embodiments and combination thereof above, the most no longer repeat.
In several embodiments presented hereinbefore, it is by three-way valve 2 by the coolant after the second heat exchanger
Carrying out the control of the coolant type of flow, three-way valve specifically can use electromagnetism switching mode to control so that it is one
Individual outlet conducting, another port closing；But the present invention is not limited to this, it is also possible to adopt and enter in other ways
Row controls, and as shown in Figure 8, Fig. 8 is the 5th kind of detailed description of the invention of the present invention, and it uses two electromagnetism
Valve: first electromagnetic valve the 21, second electromagnetic valve 22 controls to lead to the most afterwards from the second heat exchanger respectively
The coolant first flow path 210 of three heat exchangers 3, lead to cooling segregation apparatus the most afterwards from the second heat exchanger
The coolant second flow path 220 of 5, wherein the first electromagnetic valve 21 selectively turns in the second electromagnetic valve 22
One of them, when refrigeration mode, dehumidification mode, deice mode, make control coolant first flow path 210
The first electromagnetic valve 21 turn on, and when heating mode, make the second electricity of control coolant second flow path 220
Magnet valve 22 turns on, and the most equally realizes the purpose of the present invention, and concrete operational mode is referred to
Other embodiments, the most no longer repeat above.
Furthermore it is also possible to use cross valve to carry out the control of the coolant type of flow, it is illustrated in figure 9 this
6th kind of detailed description of the invention of invention.A cross valve 25 and the 3rd control valve 14 is used to instead of
Three-way valve the 2, second stop valve 8 in one embodiment, wherein the high-pressure inlet 250 of cross valve 25 with
The outlet of the second heat exchanger 102 connects, the low pressure of cross valve 25 answer back 251 with vapour liquid separator 9
Import connect, two other interface of cross valve 25: first interface the 252, second interface 253 is respectively
It is connected to the 3rd heat exchanger 3, led to the first stop valve 7 and the second throttling unit by the 3rd control valve 14
Pipeline between part 6 or the second bypass flow path, the two interface 252,253 can be according to operational mode
Needs switch over, when refrigeration mode, the 3rd control valve 14 is closed, and the height of cross valve 25 is pressed into
Mouthfuls 250 turn on first interface 252, and the second interface 253 and low pressure are answered back 251 conductings, at this moment make
Return to the coolant of low-temp low-pressure before compressor not by the low-pressure channel of cross valve；And at heating mode
Time, the 3rd control valve 14 opens, and the high-pressure inlet 250 of cross valve 25 turns on the second interface 253,
And first interface 252 and low pressure are answered back 251 conductings；When dehumidification mode, the height of cross valve 25 is pressed into
Mouthfuls 250 turn on first interface 252, and the second interface 253 and low pressure are answered back 251 conductings, and the 3rd controls
Valve 14 processed cuts out；When deice mode, the high-pressure inlet 250 of cross valve 25 is led with first interface 252
Logical, and the second interface 253 and low pressure are answered back 251 conductings, after coolant arrives cooling segregation apparatus 5, gas
State coolant returns to vapour liquid separator 9 by the 3rd interface 53 of cooling segregation apparatus 5, and liquid refrigerants is lowered the temperature
Flowed out by the second interface 52 of cooling segregation apparatus 5 afterwards, flow through the second side of second section fluid element 6
Through-flow road, then returns to vapour liquid separator 9 by the 3rd control valve 14 through the low-pressure channel of cross valve 25,
And be stored in vapour liquid separator 9；Vapour liquid separator 9 can arrange the import of two diverse locations respectively
It is connected with gaseous coolant, liquid refrigerants；The type of flow of concrete coolant and the method for operation are with reference to implementing above
Mode, is not detailed herein.
In several embodiments presented hereinbefore, it is all to separate dress by cooling under four kinds of mode of operations
Put 5 separation carrying out gaseous coolant, but the present invention is not limited to this, it is also possible to be to pass through under part pattern
Cooling segregation apparatus 5 carries out the separation of gaseous coolant, the 7th kind of embodiment as shown in Figure 10.Should
Embodiment decreases some parts for first embodiment above: second section fluid element 6,
First check valve the 12, second check valve 13, i.e. restricting element only one of which: i.e. first throttle element 4,
Additionally increase the 4th control valve 17 to control to divide to vapour-liquid from the 3rd interface 53 of cooling segregation apparatus 5
The break-make of the pipeline between device 9, the cost so put into can reduce, and system manufactures convenient；
This embodiment is under refrigeration, dehumidifying, three kinds of operational modes of deicing, and the 4th control valve 17 is opened, and makes
The separation that coolant after throttling carries out gaseous coolant at cooling segregation apparatus 5 is lowered the temperature with making liquid refrigerants, tool
The running of body is with reference to describe above；And when heating mode, the 4th control valve 17 is closed, high
The coolant of temperature high pressure from compressor 1 out, through the second exchanger 102, in heating compartment after temperature, warp
The second of three-way valve 2 exports to second flow path 220, arrives cooling segregation apparatus 5, due to by cooling
The coolant of segregation apparatus 5 throttles but the coolant of comparative high temperature without restricting element, separates through cooling
The coolant of device 5 arrives restricting element 4 by the second interface 51 and throttles, the most again to the 3rd heat exchange
Cold released by device 3, returns to vapour liquid separator 9 by the second stop valve 8 the most again, and returns to compressor
1 completes a circulation.
Furthermore it is also possible to be to make coolant carry out separating cooling by cooling segregation apparatus 5 in a heating mode,
And under other patterns, it is not isolated cooling, the 8th kind of detailed description of the invention as shown in figure 11.This is real
Mode of executing is contrary in operational mode for the 7th embodiment above, and this embodiment substitutes
Above the restricting element 4 of the 7th embodiment and remain second section fluid element 6, this embodiment be
During heating mode, the 4th control valve 17 is opened, and makes the coolant after throttling carry out at cooling segregation apparatus 5
The separation of gaseous coolant is lowered the temperature with making liquid refrigerants, and concrete running is with reference to describe above；And
Under refrigeration, dehumidifying, three kinds of operational modes of deicing, the 4th control valve 17 is closed, segregation apparatus 5 of lowering the temperature
Not carrying out separation and the cooling of gaseous coolant, concrete running is with reference to describe above.
Otherwise for the 8th embodiment presented hereinbefore, it is also possible to be improved further, by compressor
Change the compressor 10 with Two-stage Compression function into, and make the 3rd interface 53 of cooling segregation apparatus 5 even
Receive the secondary inlet of compressor 10, as shown in figure 12, other then with the 8th shown in Figure 11
Embodiment is identical.
The above, be only presently preferred embodiments of the present invention, not the present invention is made any in form
Restriction.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.
Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all can profit
With the method for the disclosure above and technology contents, technical solution of the present invention made many possible variations and repair
Decorations, or it is revised as the Equivalent embodiments of equivalent variations, as embodiments described above is combined,
Or replacement etc..Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention
Essence, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the present invention
In the range of technical scheme protection.
Claims (15)
1. an automotive air-conditioning system, including compressor, be positioned at the vapour liquid separator before compressor inlet,
The first heat exchanger of heat exchange and the second heat exchanger, selectively is selectively carried out with air in a car compartment
The 3rd heat exchanger of heat exchange, at least one restricting element, described first heat exchange is carried out with external environment
Pipeline before device is provided with the first control valve, the outlet phase of described second heat exchanger and described compressor
Connecting, described automotive air-conditioning system also includes that segregation apparatus of lowering the temperature, cooling segregation apparatus include three interfaces；
3rd interface of cooling segregation apparatus is connected with the import of described vapour liquid separator or compressor；Described automobile is empty
Adjusting system, when at least one pattern of refrigeration mode or heating mode, makes the coolant after throttling by described fall
Temperature segregation apparatus carries out the separation of air-liquid state coolant, and gaseous coolant connects from the 3rd of described cooling segregation apparatus
Mouth is returned directly to described vapour liquid separator or returns to compressor；And liquid by described cooling segregation apparatus is cold
Matchmaker is further circulated；The coolant of described second heat exchanger outlet flows to following two by control valve
Stream one of them, first flow path can lead to described 3rd heat exchanger or described 3rd heat exchanger
Bypass, second flow path can lead to described cooling segregation apparatus.
Automotive air-conditioning system the most according to claim 1, it is characterised in that described cooling separates dress
The first interface the put pipeline by band valve member or the pipeline without valve member are connected to described 3rd heat exchanger,
Second interface pipeline by band valve member of described cooling segregation apparatus or the pipeline without valve member are connected to institute
State the first heat exchanger or the second heat exchanger；First interface and/or with described cooling segregation apparatus
The pipeline that two interfaces connect is provided with described restricting element.
Automotive air-conditioning system the most according to claim 2, it is characterised in that described cooling separates dress
Pipeline between first interface and described 3rd heat exchanger put is provided with first throttle element, described fall
The pipeline that second interface of temperature segregation apparatus is connected with described first heat exchanger or the second heat exchanger sets
It is equipped with second section fluid element；First throttle element is provided with the first bypass flow path, in the first bypass flow path
Being provided with the first check valve, the first check valve leads to the direction of cooling segregation apparatus from described 3rd heat exchanger
Time close, then turn on time reversely；For second section fluid element, it is arranged in parallel the second bypass flow path, the
Be provided with the second check valve in two bypass flow path, the second check valve at coolant from described first heat exchanger or
Two heat exchangers is closed when leading to cooling segregation apparatus direction, then turns on time reversely；Described first throttle unit
Part and second section fluid element selectively turn on one of them and throttle.
Automotive air-conditioning system the most according to claim 2, it is characterised in that described air conditioning for automobiles system
System includes that second section fluid element, described second section fluid element are arranged on the second interface of described cooling segregation apparatus
In the pipeline being connected with described first heat exchanger or the second heat exchanger；At described cooling segregation apparatus
The pipeline that one interface is connected with described 3rd heat exchanger is not provided with restricting element；Described cooling separates dress
The pipeline that the 3rd interface put is connected with the import of described vapour liquid separator or compressor is provided with the 4th control
Valve processed；When heating mode, the 4th control valve is opened, and makes the coolant after throttling enter at cooling segregation apparatus
The separation of row gaseous coolant is lowered the temperature with making liquid refrigerants, and gaseous coolant connects from the 3rd of described cooling segregation apparatus
Mouth is returned directly to described vapour liquid separator or returns to compressor；And in cooling mode, the 4th control valve is closed,
Cooling segregation apparatus does not carry out separation and the cooling of gaseous coolant.
Automotive air-conditioning system the most according to claim 2, it is characterised in that described air conditioning for automobiles system
System includes that first throttle element, described first throttle element are arranged on the first interface of described cooling segregation apparatus
In the pipeline being connected with described 3rd heat exchanger；3rd interface of described cooling segregation apparatus and described vapour-liquid
The pipeline that the import of separator or compressor connects is provided with the 4th control valve；When heating mode, the 4th
Control valve is closed, and cooling segregation apparatus does not carry out separation and the cooling of gaseous coolant；And in cooling mode,
4th control valve is opened, and makes the coolant after throttling carry out the separation of gaseous coolant at cooling segregation apparatus and make
Liquid refrigerants is lowered the temperature, and gaseous coolant is returned directly to described vapour-liquid from the 3rd interface of described cooling segregation apparatus and divides
From device or return to compressor.
6. according to the automotive air-conditioning system described in claim 1-5 any of which, it is characterised in that described
Automotive air-conditioning system also includes cross valve, wherein the going out of the high-pressure inlet of cross valve and described second heat exchanger
Mouthful connecting, the import that the low pressure of cross valve is answered back with described vapour liquid separator is connected, two other of cross valve
Interface: first interface pipeline is connected to described 3rd heat exchanger, the second interface is connected by the 3rd control valve
Described cooling segregation apparatus, the two interface can switch over according to the needs of operational mode, at refrigeration mould
During formula, the high-pressure inlet of cross valve and first interface turn on, and the second interface and low pressure are answered back conducting, and the 3rd
Control valve is closed；And when heating mode, the high-pressure inlet of cross valve and the conducting of the second interface, and first connects
Mouthful answer back conducting with low pressure, the 3rd control valve unlatching.
7. according to the automotive air-conditioning system described in claim 1-5 any of which, it is characterised in that described
Being provided with three-way valve in pipeline after second heat exchanger, the first outlet of three-way valve is handed over described 3rd heat
Parallel operation connects and connects described vapour liquid separator by the second control valve；Described three-way valve second outlet with
Described first control valve connects and is connected with cooling segregation apparatus pipeline or by restricting element or bypass stream
Road is connected with cooling segregation apparatus pipeline；
Or, the pipeline after described second heat exchanger is provided with two electromagnetic valves: the first electromagnetic valve,
Second electromagnetic valve controls to lead to described 3rd heat exchanger the most afterwards from described second heat exchanger respectively
Refrigerant flow and lead to the refrigerant flow of described cooling segregation apparatus from described second heat exchanger the most afterwards
Break-make, wherein optionally turns on one of them in the first electromagnetic valve and the second electromagnetic valve；First electromagnetic valve
It is connected with described 3rd heat exchanger pipeline and connects described vapour liquid separator by the second control valve；Second
Electromagnetic valve is connected with described first control valve, simultaneously the second electromagnetic valve with cooling segregation apparatus pipeline be connected or
It is connected with cooling segregation apparatus pipeline by restricting element or bypass flow path.
8. according to the automotive air-conditioning system described in claim 1-5 any of which, it is characterised in that described
Compressor is the compressor having Two-stage Compression function, the 3rd interface of described cooling segregation apparatus and described compression
The secondary inlet of machine connects, and the outlet of described vapour liquid separator is connected with the one-level import of described compressor.
Automotive air-conditioning system the most according to claim 6, it is characterised in that described compressor is for having
The compressor of Two-stage Compression function, the 3rd interface of described cooling segregation apparatus is grading with the two of described compressor
Mouth connects, and the outlet of described vapour liquid separator is connected with the one-level import of described compressor.
10. according to the arbitrary described automotive air-conditioning system of claim 1-5, it is characterised in that described automobile
Air conditioning system is when dehumidification mode, and the wind being sent in compartment is to first pass through the first heat exchanger that refrigerant temperature is low
Dry, pass through the second heat exchanger that refrigerant temperature is high the most again, permissible at described second heat exchanger system
Choose whether to heat, i.e. can carry out choosing whether to heat, then according to temperature conditions in compartment
Again wind is delivered in compartment.
11. automotive air-conditioning systems according to claim 6, it is characterised in that described air conditioning for automobiles system
System when dehumidification mode, the wind being sent in compartment be first pass through the first low heat exchanger of refrigerant temperature dry,
The most again by high the second heat exchanger of refrigerant temperature, can select at described second heat exchanger system be
No heat, i.e. can carry out choosing whether to heat, the most again by wind according to temperature conditions in compartment
Deliver in compartment.
12. automotive air-conditioning systems according to claim 7, it is characterised in that described air conditioning for automobiles system
System when dehumidification mode, the wind being sent in compartment be first pass through the first low heat exchanger of refrigerant temperature dry,
The most again by high the second heat exchanger of refrigerant temperature, can select at described second heat exchanger system be
No heat, i.e. can carry out choosing whether to heat, the most again by wind according to temperature conditions in compartment
Deliver in compartment.
13. automotive air-conditioning systems according to claim 8, it is characterised in that described air conditioning for automobiles system
System when dehumidification mode, the wind being sent in compartment be first pass through the first low heat exchanger of refrigerant temperature dry,
The most again by high the second heat exchanger of refrigerant temperature, can select at described second heat exchanger system be
No heat, i.e. can carry out choosing whether to heat, the most again by wind according to temperature conditions in compartment
Deliver in compartment.
14. automotive air-conditioning systems according to claim 10, it is characterised in that described 3rd heat is handed over
Parallel operation is additionally provided with bypass passageways, when dehumidification mode, after High Temperature High Pressure coolant passes through the second heat exchanger,
Can select to be by described 3rd heat exchanger or by described bypass passageways；And described bypass passageways uses
Stop valve or electromagnetic valve control whether to turn on.
15. according to the arbitrary described automotive air-conditioning system of claim 11-13, it is characterised in that described the
Three heat exchangers are additionally provided with bypass passageways, and when dehumidification mode, High Temperature High Pressure coolant passes through the second heat exchange
After device, can select to be by described 3rd heat exchanger or by described bypass passageways；And described bypass leads to
Road uses stop valve or electromagnetic valve to control whether to turn on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042072.3A CN103292510B (en) | 2012-02-23 | 2012-02-23 | A kind of automotive air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042072.3A CN103292510B (en) | 2012-02-23 | 2012-02-23 | A kind of automotive air-conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN103292510A CN103292510A (en) | 2013-09-11 |
| CN103292510B true CN103292510B (en) | 2016-08-24 |
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| CN201210042072.3A Active CN103292510B (en) | 2012-02-23 | 2012-02-23 | A kind of automotive air-conditioning system |
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| US11167620B2 (en) | 2017-03-08 | 2021-11-09 | Hangzhou Sanhua Research Institute Co., Ltd. | Thermal management system |
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| EP2793003A1 (en) * | 2013-04-15 | 2014-10-22 | Volvo Car Corporation | Calculation of flow in an air system |
| CN104197578B (en) * | 2014-08-11 | 2017-03-15 | 安徽东升机电有限责任公司 | A kind of heat pump air conditioner for electric automobile |
| EP3666565B1 (en) * | 2017-08-08 | 2022-08-10 | Hangzhou Sanhua Research Institute Co., Ltd. | Automotive air conditioning system |
| CN108515825B (en) * | 2018-03-22 | 2020-10-09 | 安徽江淮汽车集团股份有限公司 | Two-stage compression automobile air conditioning system and control method thereof |
| CN113266883A (en) * | 2021-05-18 | 2021-08-17 | 青岛海信日立空调系统有限公司 | Fresh air dehumidifying device |
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| CN101228398A (en) * | 2005-07-25 | 2008-07-23 | 艾姆斯管理股份公司 | Method for cooling an airflow |
| CN201438053U (en) * | 2009-06-10 | 2010-04-14 | 厦门金龙联合汽车工业有限公司 | Air-conditioning system of novel special motor coach |
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