CN103712277B

CN103712277B - A kind of automotive air-conditioning system

Info

Publication number: CN103712277B
Application number: CN201210380651.9A
Authority: CN
Inventors: 黄宁杰; 刘维华; 董洪洲; 王艳红
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2017-10-13
Anticipated expiration: 2032-09-29
Also published as: CN103712277A

Abstract

The invention discloses a kind of automotive air-conditioning system, the automotive air-conditioning system also includes injector（12）And Intermediate Heat Exchanger（6）；During heating mode, by the second heat exchanger（102）Outlet outflow working medium be divided into first flow path and second flow path：In first flow path, working medium is by the high temperature side（62）Injector is entered by Driver Entry after outflow（12）In, by the injector（12）Jet exit spray after be divided into tie point and the second branch road：In the tie point, working medium passes through low temperature side（61）Flow back to compressor（1）In；In the second branch road, working medium passes through the 3rd heat exchanger（3）Injector is flowed into by bypassing draining hole（12）In.The air-conditioning system can significantly improve the efficiency of compressor and air-conditioning system, it is ensured that the demand of heat under psychro-environment, so as to ensure the comfortableness of passenger and the stability and high efficiency work of heat generating components.

Description

A kind of automotive air-conditioning system

Technical field

The present invention relates to automobile air conditioning technology field, more particularly to a kind of air-conditioning system used for electric vehicle or hybrid power Automotive air-conditioning system.

Background technology

With the development of low-carbon economy, energy-saving and emission-reduction are proposed with more strict requirements, countries in the world are all new energy Automobile as automobile industry development strategic direction, and electric automobile or hybrid vehicle due to there is energy-conserving and environment-protective the characteristics of, As one of aspect of development of automobile from now on.But electric automobile is due to using battery as power resources, battery as core component, Its cost and capacity/weight govern the development of new-energy automobile；Its air-conditioning system is same also different from original air conditioning for automobiles 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 electric The power of electrical automobile mostlys come from motor, has lacked the heat of engine and can utilize.

In addition, in orthodox car, air blower and condensation motor are the use power supply of air conditioning for automobiles mainly, and in electronic vapour The just not exclusively air blower and condensation motor of electricity consumption on car/hybrid vehicle, this contradiction will protrude more：

First, compressor does not have the driving of engine, fully relies on electric energy；

Second, same because without engine, the waste heat for not having engine when heating can use, and also fully rely on electricity Energy.The utilization rate of electric energy so how is improved, the subject matter as electric automobile or hybrid power automobile air conditioner；

3rd, for the more severe area of environment, such as winter it is high and cold this regional contradiction it is especially prominent.

In electric automobile air-conditioning system as shown in Figure 1, the system has two main loops：Kind of refrigeration cycle 1000 and heating Circulation 2000.Automotive air-conditioning system includes two air-conditioning box assemblies：Compartment air-conditioning box 1010 and battery module air-conditioning box 1020：Car Railway carriage or compartment air-conditioning box 1010 includes compartment evaporator device 1011 and carriage heating unit 1012, and battery module air-conditioning box 1020 includes battery Module evaporator 1021 and battery module heater 1022.When carrying out kind of refrigeration cycle, its course of work is：In summer condition When, air-conditioning is opened, compressor 1001 is started working, consume certain electric energy, the gaseous working medium of low-temp low-pressure is compressed into high temperature The gaseous working medium of high pressure, heat is released when flowing through condenser 1002, and working medium liberated heat is absorbed by surrounding air, and itself sends out Give birth to phase transformation and be condensed into liquid, liquid refrigerant makes working medium decompression cooling, Ran Houliu when flowing through expansion valve 1003 and/or 1005 The heat in in-car and/or battery in air is absorbed through compartment evaporator device 1011 and/or during battery module evaporator 1021, itself Undergo phase transition and flash to gaseous state, the gaseous working medium of low-temp low-pressure is compressed into the gaseous state work of HTHP by compressor 1001 again Matter, so circulates work.Two evaporators 1011 and 1021 in system can work independently, especially by two magnetic valves 1004 Break-make with 1006 realizes the control of stream.

And when heating circulation, its course of work 2000 is：In the winter time during operating mode, electric heater 2003 is powered, to circulation Working medium in 2000 is heated, meanwhile, water pump 2001 starts, and the working medium after heating is delivered to heater 1012 and/or 1022, To being heated in air in in-car and/or battery, stream is realized especially by the break-make of two magnetic valves 2004 and 2005 Control so as to providing thermal source.Heater 1012 and 1022 can work independently, by the break-make of magnetic valve 2004 and 2005 come real It is existing.

However, in said system, also there is following defect：

1）During kind of refrigeration cycle, the suction temperature of compressor is substantially equivalent to the evaporation temperature of the port of export of evaporator 1011 and 1021 Degree, the pressure of inspiration(Pi) of compressor is substantially equivalent to the evaporating pressure of the port of export of evaporator 1011 and 1021, thus when the system is in When high temperature is very hot regional, the suction temperature and pressure of inspiration(Pi) of compressor compare relatively low, thus reduce the efficiency of compression, simultaneously It cannot guarantee that enough refrigeration requirements.

2）Refrigeration is concurrently or separately cooled down using the air-conditioning system in traditional vehicle to compartment or battery；And heat then Using high pressure PTC, i.e., electrically heated mode is concurrently or separately heated to compartment or battery.Using electrical heating, its efficiency is most A height of 100%.So system also circulates the heating circulation system of working medium in 2000 in addition to kind of refrigeration cycle, i.e. system is relative It is complex.

3）It is that the electric energy in the electrical energy system completely by consuming vehicle to heat working medium and it is when heating, compartment And/or the air in battery carries out heat exchange in radiator with hotter working medium again, the air after heating deliver to again compartment and/ Or in battery.In these heat exchanging process, the loss of heat is had certainly, so efficiency is certainly less than 1.

4）In addition in heating, because the specific heat of the working medium in circulation 2000 is relatively large, and the power limited of electric heater, Cause the heating for circulating the working medium in 2000 relatively slow, and then the heating of air is also relatively slow, so to influence passenger's comfortable Property.

5）The heat generating components temperature such as battery is relatively low during due to just starting, and temperature rise is slower, so as to influence whether The performance of the heat generating components such as battery（Such as distance travelled shortening, service life shortens）.

6）Along with there is the kind of refrigeration cycle of working medium and the heat cycles of the working medium of heat cycles 2000, system simultaneously in the system Part it is more, relatively complicated, onboard difficult arrangement, manufacturing cost is higher.

The content of the invention

The technical problem to be solved in the present invention is provides a kind of automotive air-conditioning system, and the air-conditioning system can significantly improve pressure The efficiency of contracting machine and air-conditioning system, it is ensured that the demand of heat under psychro-environment, so as to ensure the comfortableness and heat generating components of passenger Stability and high efficiency work.

In order to solve the above technical problems, the present invention provides a kind of automotive air-conditioning system, at least including refrigeration mode and heat Pattern；The automotive air-conditioning system includes compressor, gas-liquid separator, the 3rd heat exchange of heat exchange is carried out with compartment external environment Device, the first air-conditioning box, the second air-conditioning box and at least one restricting element；

First air-conditioning box is used to adjusting temperature and/or humidity in compartment, and the first air-conditioning box includes First Heat Exchanger and the Two heat exchangers；Second air-conditioning box is used for the temperature of regulation heating part, including heat generating components heat exchanger；

The automotive air-conditioning system also includes injector and Intermediate Heat Exchanger, and the Intermediate Heat Exchanger includes that heat can be carried out The low temperature side and high temperature side of exchange；

The import of second heat exchanger is connected with the outlet of the compressor by pipeline, the outlet of the second heat exchanger It is divided into two-way in pipeline afterwards, this two-way is respectively turned on one of them in refrigeration mode and heating mode；

During heating mode, by the second heat exchanger outlet outflow working medium be divided into first flow path and may be selected connection or in Disconnected second flow path：

In first flow path, working medium enters in high temperature side, and enters injection by Driver Entry after high temperature side outflow In device, it is divided into tie point and the second branch road after the jet exit ejection of the injector：

In the tie point, working medium carries out heat exchange by low temperature side, then flows back to compression by gas-liquid separator again In machine；

In the second branch road, working medium is flowed into the 3rd heat exchanger after throttling by pipeline absorbs heat, then by this The working medium of 3rd heat exchanger outflow is flowed into injector by bypassing draining hole；

In second flow path, working medium, which enters in heat generating components heat exchanger, releases heat, then by the heat generating components heat exchanger The working medium of outflow is flowed into the 3rd heat exchanger after throttling.

Preferably, during refrigeration mode, the working medium flowed out by the second heat exchanger is flowed into the 3rd heat exchanger by pipeline, then After the throttling flowed out by the 3rd heat exchanger it is divided into two-way or is divided into after two-way and throttled, second heat exchanger goes out Mouth end is connected with the first triple valve, in remaining two interfaces of first triple valve, during an interface guiding refrigeration mode Pipeline, another interface is oriented to pipeline during heating mode：

In all the way, working medium, which is flowed into after low temperature side in First Heat Exchanger, absorbs heat refrigeration, then first is changed by this The working medium of hot device outflow is flowed back in compressor by gas-liquid separator；

In another road, working medium is entered in heat generating components heat exchanger by pipeline absorbs heat refrigeration, then by the heating The working medium of part heat exchanger outflow is flowed back in compressor by gas-liquid separator.

Preferably, in the first flow path, high temperature side accesses the Driver Entry of injector, the jet exit of the injector The second stop valve is connected with, the pipeline after second stop valve is divided into tie point and the second branch road；

In tie point, pipeline is provided with the 3rd stop valve between the port of export and gas-liquid separator of low temperature side；

In the second branch road, the pipeline before the entrance point of the 3rd heat exchanger is provided with first throttle element, and the 3rd Pipeline between heat exchanger exit end and the bypass draining hole of injector is provided with the 4th stop valve.

Preferably, another pipe that the 5th stop valve is set is connected with the pipeline between the 3rd heat exchanger and the 4th stop valve In road, and another pipeline access gas-liquid separator, the pipeline between the Driver Entry of the high temperature side and injector is provided with Second restricting element.

Preferably, in the second flow path, the pipeline of the entrance point connection of heat generating components heat exchanger is provided with first section Only valve, the pipeline of heat generating components heat exchanger exit end connection is provided with the 3rd restricting element, is then changed by pipeline with the 3rd Hot device connection, the port of export of low temperature side is further connected in First Heat Exchanger by the 6th stop valve, and heat generating components exchanges heat The port of export of the device in refrigeration mode is accessed in gas-liquid separator by the pipeline provided with the 7th stop valve.

In order to solve the above technical problems, the present invention also provides a kind of automotive air-conditioning system, at least including refrigeration mode and system Heat pattern；The automotive air-conditioning system includes compressor, gas-liquid separator, the 3rd heat exchange of heat exchange is carried out with compartment external environment Device, the first air-conditioning box, the second air-conditioning box and at least one restricting element；

In first flow path, working medium enters high temperature side, be divided into after the throttling flowed out by the high temperature side tie point and Second branch road, or it is divided into throttling after tie point and the second branch road；

In tie point, working medium enters injector by Driver Entry, and is sprayed by the jet exit of the injector, so Entered afterwards by pipeline in low temperature side and carry out heat exchange, then entered after low temperature side outflow in gas-liquid separator；

In the second branch road, working medium is entered in the 3rd heat exchanger by pipeline absorbs heat, then by the 3rd heat exchanger The working medium of outflow is accessed in injector by bypassing communication port；

In first flow path, working medium is separately flowed into tie point and the second branch road；

In tie point, working medium is entered in injector by Driver Entry, and is sprayed by the jet exit of the injector, Then entered again by pipeline in low temperature side, the working medium flowed out by the low temperature side is flowed back in compressor by gas-liquid separator；

In the second branch road, working medium is flowed into high temperature side, is entered after high temperature side outflow throttling in the 3rd heat exchanger and is inhaled Heat is received, the working medium then flowed out by the 3rd heat exchanger is accessed in injector by bypassing draining hole；

In tie point, working medium is flowed into high temperature side, is then flowed into by Driver Entry in injector, working medium is by the spray Enter after the jet exit outflow of emitter in low temperature side and carry out heat exchange, the working medium then flowed out by the low temperature side passes through gas-liquid point Flowed back to from device in compressor；

In the second branch road, enter after throttling in the 3rd heat exchanger, the working medium then flowed out by the 3rd heat exchanger Accessed by bypassing draining hole in injector；

In order to solve the above technical problems, the present invention also provides a kind of automotive air-conditioning system, at least including refrigeration mode and system Heat pattern；The automotive air-conditioning system includes compressor, the 3rd heat exchanger, the first air-conditioning of heat exchange is carried out with compartment external environment Case, the second air-conditioning box and at least one restricting element；

The automotive air-conditioning system also includes injector and the shwoot connected by pipeline with the jet exit of injector Device；

In first flow path, working medium is entered in injector by Driver Entry and sprayed by its jet exit, then working medium Gas-liquid separation is carried out into flash evaporation and is divided into tie point and the second branch road：

In tie point, enter after liquid refrigerant throttling in the 3rd heat exchanger and absorb heat, then by the 3rd heat exchange The working medium of device outflow is accessed in injector by bypassing draining hole；

In the second branch road, gaseous working medium is flowed back in compressor；

Preferably, during refrigeration mode, the working medium flowed out by the second heat exchanger is flowed into the 3rd heat exchanger by pipeline, then It is divided into two-way after the throttling flowed out by the 3rd heat exchanger or is divided into after two-way and is throttled：

In all the way, working medium, which is flowed into after throttling in First Heat Exchanger, absorbs heat refrigeration, then first is exchanged heat by this The working medium of device outflow with gas-liquid separator by flowing back in compressor；

Preferably, during heat generating components preheating mode, working medium enters in heat generating components heat exchanger after the outflow of the second heat exchanger Release heat to heat, the working medium then flowed out by the heat generating components heat exchanger enters after throttling absorbs heat in the 3rd heat exchanger Amount, working medium is flowed back in compressor after the outflow of the 3rd heat exchanger by gas-liquid separator.

Relative to prior art, above-mentioned technical proposal employs injector, is changed because injector can improve low-pressure side The pressure for the working medium that hot device comes out, the state for making to enter the working medium of compressor is intermediate pressure state, and then reduces compressor Pressure ratio, reduces the wasted work of compressor, improves the efficiency of compressor and air-conditioning system, therefore using the compression of a routine Machine, it is possible to higher operating efficiency is obtained under high and cold environment, disclosure satisfy that the requirement of heat under psychro-environment.This Outside, in the above-mentioned technical solutions, the switching freezed and heated as a result of heat pump cycle, relative to adopting in the prior art Single heat cycles are used, efficiency can be significantly improved, and efficiency is also greater than 1 under rugged environment.Also, In the heat pump of the present invention, air is directly heated using working medium so that compartment is rapidly heated, it is ensured that the comfortableness of passenger, it is right Heat generating member can ensure that it rapidly enters optimum Working with rapidly pre-warming.

In summary, a kind of automotive air-conditioning system provided by the present invention can on the one hand can significantly improve compressor and The efficiency of air-conditioning system, it is ensured that the demand of heat under psychro-environment, so as to ensure the comfortableness of passenger and the stabilization of heat generating components Efficient operation.

Brief description of the drawings

Fig. 1 is a kind of pipeline connection diagram of automotive air-conditioning system in the prior art；

Fig. 2 is the pipeline connection diagram of automotive air-conditioning system in cooling mode in the first embodiment of the invention；

Fig. 3 is the pipeline connection diagram of automotive air-conditioning system in a heating mode in the first embodiment of the invention；

Fig. 4 is pipeline connection signal of the automotive air-conditioning system under battery preheating mode in the first embodiment of the invention Figure；

Fig. 5 is pipeline connection diagram of the automotive air-conditioning system under deice mode in the first embodiment of the invention；

Fig. 6 is the pipeline connection signal of automotive air-conditioning system the first alternative solution in the first of the invention embodiment Figure；

Fig. 7 is the pipeline connection signal of second of alternative solution of automotive air-conditioning system in the first of the invention embodiment Figure；

Fig. 8 is the pipeline connection diagram of automotive air-conditioning system the third alternative solution in the first embodiment；

Fig. 9 be the first embodiment in the 4th kind of alternative solution of automotive air-conditioning system pipeline connection diagram；

Figure 10 is the pipeline connection diagram of second of embodiment automotive air-conditioning system of the invention in cooling mode；

Figure 11 is the pipeline connection diagram of second of embodiment automotive air-conditioning system of the invention in a heating mode；

Figure 12 is pipeline connection diagram of second of embodiment automotive air-conditioning system of the invention under battery preheating mode；

Figure 13 is pipeline connection diagram of second of embodiment automotive air-conditioning system of the invention under deice mode.

Pressure letter figure when Figure 14 works for the automotive air-conditioning system of the present invention.

Corresponding relations of the Fig. 2 into Figure 13 between reference and component names be：

1 compressor；2 first triple valves；3 the 3rd heat exchangers；4 first throttle parts；5 the 3rd throttle parts；6 intermediate heat transfers Device；61 low temperature sides；62 high temperature sides；7 the 6th stop valves；8 the 3rd stop valves；9 gas-liquid separators；10 the 4th stop valves；11 second Stop valve；12 injectors；13 second restricting elements；14 the 5th stop valves；15 first stop valves；16 the 7th stop valves；17 shwoots Device；18 second triple valves；19 the 8th stop valves；20 the 9th stop valves；

100 first air-conditioning boxs：101 First Heat Exchangers；102 second heat exchangers；103 electric heaters；104 air blowers；105 temperature Spend air door；106 cycle throttles；107 interior circulation air ports；108 fresh wind ports；109 grids and air channel；

200 second air-conditioning boxs：201 heat generating components heat exchangers；202 electric heaters；203 air blowers；204 cycle throttles；401 Wind inlet channel；402 exhaust air flues；

300 heat generating components.

Embodiment

The core of the present invention is provides a kind of automotive air-conditioning system, and the air-conditioning system can significantly improve compressor and air-conditioning The efficiency of system, it is ensured that the demand of heat under psychro-environment, so as to ensure the comfortableness of passenger and the stability and high efficiency of heat generating components Work.

In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real Applying example, the present invention is described in further detail.

Fig. 2 to Fig. 5 is refer to, firstly, it is necessary to which explanation, in accompanying drawings of this paper with dotted line, is related to working medium and is passed through The pipeline crossed, is not turned on herein with the general proxy working medium of dotted line, is turned on or may be selected herein with the general proxy working medium of solid line Property conducting.Conducting or interruption of the working medium on pipeline are realized by the control of corresponding stop valve or triple valve.

Secondly, it is necessary to which explanation, in the present invention, the noun of locality such as " up, down, left and right " is with the position of part in accompanying drawing Put as reference, thus in reality, after the position of part changes, above-mentioned orientation can also change therewith, thus on State the noun of locality and should not be taken as limiting the scope of the invention.

Again, in the present invention, the entrance point and the port of export of heat exchanger are two relative concepts, due under various patterns The flow direction of working medium is different, thus for same heat exchanger, its one end is entrance point in cooling mode, when in heating mode The lower end may be the port of export again, thus " entrance point or import and the port of export or outlet " and etc. concept need to be placed on specifically Understand under system model.

Separately：In a particular embodiment of the present invention, working medium is the conventional working medium of air conditioning for automobiles industry.Because working medium normal temperature Under the smaller safety coefficient of critical pressure it is higher, and automobile jolts in motion and other various complex working conditions are more, and automobile is empty The working medium critical pressure of tune is bigger, and danger coefficient is higher.

Such as when systematic working medium is CO₂When, CO₂Critical pressure under normal temperature（Operating pressure）For 7.4MPa, to the zero of system Part requirement is higher, also requires that comparison is high to parts intensity, shock resistance require it is higher, otherwise occur it is dangerous go out It is existing.So when the critical pressure under systematic working medium normal temperature is bigger, the cost of system is higher.

When systematic working medium is R134a, the critical pressure under R134a normal temperature（Operating pressure）Only 1.32MPa, with respect to work Matter is CO₂System, the requirement of parts will be reduced, and the shock strength of system can also be reduced, the cost of corresponding system With regard to that can reduce.

In summary, the working medium in the system is preferably the less working medium of normal temperature lower critical pressure.

In the first embodiment, automotive air-conditioning system at least includes refrigeration mode and heating mode；Automotive air-conditioning system The 3rd heat exchanger, the first air-conditioning box 100, second of heat exchange are carried out including compressor 1, gas-liquid separator 9, with compartment external environment Air-conditioning box 200 and at least one restricting element；

First air-conditioning box 100 is used to adjust the temperature and/or humidity in compartment, and the first air-conditioning box 100 includes the first heat exchange The heat exchanger 102 of device 101 and second, and second heat exchanger 102 may be at the leeward to side of First Heat Exchanger 101；Second Air-conditioning box 200 is used for regulation heating part（The heat generating components can be battery, be certainly not limited to battery, can also electronic vapour Other kinds of heat generating components on car or hybrid vehicle）Temperature, including heat generating components heat exchanger 201；

The automotive air-conditioning system also includes injector 12 and Intermediate Heat Exchanger 6, and Intermediate Heat Exchanger 6 includes that heat can be carried out The low temperature side 61 and high temperature side 62 of exchange；The import of second heat exchanger 102 is connected with the outlet of compressor 1 by pipeline, the It is divided into two-way in pipeline after the outlet of two heat exchangers 102, this two-way is respectively turned on it in refrigeration mode and heating mode One of；

As shown in figure 3, during heating mode, the working medium flowed out after the first triple valve 2 is passed through by the outlet of the second heat exchanger 102 It is divided into first flow path and connection or the second flow path interrupted may be selected, when heat generating components need not be preheated in the winter time, this second Stream can be interrupted, now can by the natural wind of external environment be heat generating components cool down, when need to heat generating components carry out During preheating, this second flow path can be turned on：In first flow path, working medium is passed through again by high temperature side 62, the second restricting element 13 Driver Entry enters injector 12, is divided into tie point and the second branch road after the jet exit ejection of the injector 12：

The working medium of tie point carries out heat exchange by low temperature side 61, then flows back to compressor by gas-liquid separator 9 again 1；The working medium of second branch road is flowed into the 3rd heat exchanger 3 after throttling by pipeline absorbs heat, then by bypassing drainage Mouth inflow injector 12；

In the case where second flow path is turned on（The part pipeline of this in figure is represented by dotted lines）, part working medium enters heat generating components Heat is released in heat exchanger 201, the working medium then flowed out by the heat generating components heat exchanger 201 flows to the 3rd heat exchange after throttling Device 3.

Relative to prior art, because injector 12 can improve the pressure for the working medium that low-side heat exchanger comes out, make into The state for entering the working medium of compressor 1 is intermediate pressure state, and then reduces the pressure ratio of compressor 1, reduces the consumption of compressor 1 Work(, improves the efficiency of compressor 1 and air-conditioning system, therefore using the compressor 1 of a routine, it is possible in high and cold environment It is lower to obtain higher operating efficiency, it disclosure satisfy that the requirement of heat under psychro-environment.In addition, in the above-mentioned technical solutions, by In employing the switching that heat pump cycle is freezed and heated, relative in the prior art using single heat cycles, heat pump The efficiency of system is：COP=Q_h/ W, wherein Q_h=Q_c+W；W is the work(that system is consumed；Q_cIt is that working medium absorbs in heat exchanger on the outside of compartment Heat, Q_hIt is the heating amount of system, so COP=Q_h/W=(Q_c+W)/W=Q_c/W+1>1, its efficiency can be significantly improved, Efficiency is also greater than 1 under rugged environment.Also, in the heat pump of the present invention, directly heated using working medium Air causes compartment to be rapidly heated, it is ensured that the comfortableness of passenger, and using working medium to carry out heat exchange to heat generating member can be with rapidly pre-warming Ensure that it rapidly enters optimum Working.

In addition, the low temperature side 61 and high temperature side 62 of Intermediate Heat Exchanger 6 can carry out heat exchange, thus from the spray of injector 12 Endothermic transition is gaseous state when the working medium of gas-liquid mixture phase that exit wound of bullet sprays flows through low temperature side 61, and further improves temperature, The working medium essentially gaseous state of the suction end of compressor 1 thus is enabled to, and improves suction temperature, so as to further raising The efficiency of compressor 1.Certainly, in order to avoid liquid refrigerant from entering in compressor 1, the suction end of the compressor 1 can enter One step is provided with gas-liquid separator 9.

Specifically, in cooling in summer, as shown in Fig. 2 the working medium flowed out by the second heat exchanger 102 is through the first triple valve 2 The 3rd heat exchanger 3 is flowed to by pipeline again, two-way is divided into after the throttling flowed out from the 3rd heat exchanger 3 or is divided into after two-way respectively Throttled：In all the way, working medium, which is flowed into after low temperature side 61 in First Heat Exchanger 101, absorbs heat refrigeration, then by this First Heat Exchanger 101 flows out flows back to compressor 1 by gas-liquid separator 9 again；In another road, working medium is entered by pipeline generates heat Heat refrigeration is absorbed in part heat exchanger 201, compressor 1 is then flowed back to by gas-liquid separator 9 again.

In the above-mentioned technical solutions, specific design can be made to flow pipe.The port of export such as the second heat exchanger 102 connects It is connected in the first triple valve 2, remaining two interfaces of the first triple valve 2, an interface is oriented to pipeline during refrigeration mode, separately One interface is oriented to pipeline during heating mode.That is, when in refrigeration mode, as shown in Fig. 2 the upside of the first triple valve 2 Interface conducting, the interface interrupt on right side；When in heating mode, as shown in figure 3, the interface on the right side of the first triple valve 2 is led It is logical, the interface interrupt of upside.

Further, in first flow path in a heating mode, as shown in figure 3, high temperature side 62 accesses the drive of injector 12 Dynamic entrance, the jet exit of the injector 12 is connected with the second stop valve 11, and the pipeline after second stop valve 11 is divided into first Branch road and the second branch road；As shown in Fig. 2 when refrigeration mode, the second stop valve 11 is closed, make working medium by first throttle element 4 Directly entered after throttling by low temperature side 61 and freezed in First Heat Exchanger 101.

In addition, pipeline is provided with the 3rd stop valve between the port of export of low temperature side 61 and gas-liquid separator 9 in tie point 8；In refrigeration mode, the 3rd stop valve 8 is closed so that working medium, which enters in First Heat Exchanger 101, freezes；During heating mode, the Three stop valves 8 are opened so that working medium flows back to compressor 1.

In the second branch road, the pipeline before the entrance point of the 3rd heat exchanger 3 is provided with first throttle element 4, and the 3rd Pipeline between the port of export of heat exchanger 3 and the bypass draining hole of injector 12 is provided with the 4th stop valve 10.In this kind of structure, First throttle element 4 plays reducing pressure by regulating flow effect, so that the 3rd heat exchanger 3 realizes heat absorption function.As shown in Fig. 2 refrigeration During pattern, the 4th stop valve 10 is closed so that working medium enters the 3rd heat exchanger 3, and during heating mode, the 4th stop valve 10 is opened, So as to realize the conducting of the second branch road.

In addition it is connected with the pipeline between the 3rd heat exchanger 3 and the 4th stop valve 10 and the another of the 5th stop valve 14 is set In pipeline, and another pipeline access gas-liquid separator 9.As shown in figure 4, when in battery preheating mode, the 5th cut-off Valve 14 is turned on, so that the working medium flowed out by the 3rd heat exchanger 3 is directly flowed back in compressor 1 by gas-liquid separator 9.

Pipeline between the Driver Entry of high temperature side 62 and injector 12 is provided with the second restricting element 13.In second flow path In, the pipeline of the entrance point connection of heat generating components heat exchanger 201 is provided with the first stop valve 15, the heat generating components heat exchanger 201 The pipeline of port of export connection is provided with the 3rd restricting element 5, is then connected by pipeline with the 3rd heat exchanger 3.

In said structure, the first stop valve 15 can realize the interruption or conducting of second flow path, while the 3rd throttling member Part 5 can carry out reducing pressure by regulating flow, the evaporation so that working medium is absorbed heat in the 3rd heat exchanger 3 to working medium.

In addition, the port of export of low temperature side 61 is further connected into First Heat Exchanger 101 by the 6th stop valve 7, and generate heat The port of export of the part heat exchanger 201 in refrigeration mode accesses gas-liquid separator 9 by the pipeline provided with the 7th stop valve 16.

In said structure, the 6th stop valve 7 and the mating reaction of the 3rd stop valve 8, so that being flowed out by low temperature side 61 Working medium can select to enter First Heat Exchanger 101 or flow back to compressor 1, so as to be applicable different system pattern.In addition, the 7th section Only valve 16 and its place pipeline, when in deice mode and refrigeration mode, the 7th stop valve 16 is turned on, so that by generating heat The working medium that part heat exchanger 201 flows out flows back to compressor 1；In other patterns, the 7th stop valve 16 is closed.

On the basis of above-mentioned pipeline arrangement, the specific work process of various patterns is will be described in detail below.

As shown in Fig. 2 under cooling in summer pattern, compressor 1 consumes certain electric energy, by the gaseous working medium of low-temp low-pressure The gaseous working medium of HTHP is compressed into, the second heat exchanger 102 is flowed through and the 3rd heat exchanger 3 is flowed to by the first triple valve 2.High temperature High-pressure working medium is cooled under air stream B condensation in the 3rd heat exchanger 3, releases heat quilt and is discharged into surrounding air, Itself or part undergo phase transition and are condensed into liquid.Liquid refrigerant is divided into two-way after the 3rd heat exchanger 3 comes out.Liquid all the way State working medium flows through first throttle element 4, makes working medium decompression cooling, flows through the low temperature side 61 of Intermediate Heat Exchanger 6.Now, the 6th section Only valve 7 is opened, and the first stop valve 15, the 3rd stop valve 8, the 4th stop valve 10, the second stop valve 11, the 5th stop valve 14 are closed Close.Now no working medium flows through injector 12.The liquid refrigerant of low-temp low-pressure is in First Heat Exchanger 101, in absorption air stream A Heat, itself undergo phase transition and flash to gaseous state.Another road liquid refrigerant flows through the 3rd restricting element 5, makes working medium decompression drop Temperature.Now, the 7th stop valve 16 is opened, and the first stop valve 15 is closed.The liquid refrigerant of low-temp low-pressure is in heat generating components heat exchanger In 201, the heat in absorption air stream E makes air stream E cooling heating elements；Working medium undergoes phase transition and flashes to gaseous state in itself, Converge with the gaseous working medium from First Heat Exchanger 101 out, through gas-liquid separator 9, liquid refrigerant is stored at gas-liquid separator 9 Interior, the gaseous working medium of low-temp low-pressure is compressed into the gaseous working medium of HTHP by compressor 1 again, so circulates work.

Air blower 104 plays conveying to air stream A.Air stream A by First Heat Exchanger 101 by cool-down dehumidification, through lattice In grid and air channel 109, feeding car room, there is provided environment of comfortably riding for the temperature in reduction car room.The control of air stream A temperature It is realized in：Can be as needed, determined to flow through the ratio of the second heat exchanger 102 by the opening angle of temperature damper 105, plus Air stream of the hot-fluid through the second heat exchanger 102, then mixed with original air stream, and reach required temperature.Wherein, it is empty Air-flow A is the mixing wind for flowing through interior circulation air port 107 and fresh wind port 108, and mixed proportion can be required by system according to comfortableness, by Cycle throttle 106 is controlled.And power consumption can further be saved by introducing circulate in the wind.

Air blower 203 plays conveying to air stream E.Air stream E is by heat generating components heat exchanger 201, by cool-down dehumidification, Delivered to by air channel 401 in heat generating components 300, the heat generating components such as battery are cooled, it is maintained suitable work model In enclosing.When external environment G temperature is higher than the leaving air temp F of battery, cycle throttle 204 opens the left position into figure, portion Divide or be fully incorporated the air-out F of battery.So as to play a part of saving the energy.When external environment G temperature is relatively low, multiply Main cabin needs or is not required to refrigeration, and heat generating components can directly quote extraneous fresh air G when need to cool down, to be cooled down to heat generating components 300, Rather than cooled down using refrigeration mode for heat generating components 300.Then, the air door in exhaust air flue 402 is passed through（It is not shown）, to control The air-out of heat generating components processed is back air-conditioning box 200, is still expelled directly out outside car.So, electric energy is further saved, system is improved Efficiency.

First Heat Exchanger 101 and heat generating components heat exchanger 201 can work independently, by the 6th stop valve 7 and the 7th section Only the control of valve 16 is showed, so as to be individually for passenger compartment or battery offer low-temperature receiver.Such as when battery needs rapid cooling, or when outer Boundary's thermic load is not too high, and the 6th stop valve 7 is closed, and the 7th stop valve 16 is opened, and working medium flows only through heat generating components heat exchanger 201。

As shown in figure 3, when in winter heating's pattern, compressor 1 consumes certain electric energy, by the gaseous state of low-temp low-pressure Working medium is compressed into the gaseous working medium of HTHP, flows through the second heat exchanger 102, under Cryogenic air stream A cooling, and itself occurs Phase transformation and condense.After the first triple valve 2, then working medium be segmented into two parts.A part of working medium flows to Intermediate Heat Exchanger 6 High temperature side 62, another part working medium flows into heat generating components heat exchanger 201, heat provided for heat generating components, be used for when needed Heat generating components is heated when needed.Now, the 7th stop valve 16 is closed, and the first stop valve 15 is opened.Working medium flows out high temperature side 62 Afterwards, it is depressured and cools through the second restricting element 13, flow to the Driver Entry of injector 12, carries from the low of the 3rd heat exchanger 3 outflow The gaseous working medium of temperature is forced down, by mixing and then ejecting in injector 12.Now, the 5th stop valve 14 is closed, and the 4th The stop valve 11 of stop valve 10 and second is switched on.Working medium is divided into two-way after flowing through the second stop valve 11.During first via working medium flows through Between heat exchanger 6 low temperature side 61, and absorb the heat of working medium in high temperature side 62, itself undergo phase transition and flash to gaseous state, flow to Gas-liquid separator 9；And the working medium in high temperature side 62 is further condensed into the working medium of supercooling.Now, the 3rd stop valve 8 is opened, 6th stop valve 7 and the 5th stop valve 14 are all closed.Another road working medium flows through the further decompression cooling of first throttle element 4, so After flow to the 3rd heat exchanger 3, carry out heat exchange with Cryogenic air stream B, absorb its heat of vaporization and become the gaseous state of low-temp low-pressure Working medium.So, the system can absorb heat from the low temperature environment of lower temperature, realize the function of heat pump.Absorb heat Phase transformation and the low-temp low-pressure working medium evaporated flows through the 4th stop valve 10, by the working medium band of the porch relative high pressure of injector 12 Enter injector 12, by mixing and then ejecting in injector 12, so circulate work.Pass through injector 12, the heat pump The working range increase of circulation, efficiency is improved.

Air blower 104 plays conveying to air stream A.Air stream A by the second heat exchanger 102 be heated, through grid with In air channel 109, feeding car room, there is provided environment of comfortably riding for the temperature in increase car room.Wherein, air stream A is to be followed in flowing through Ring air port 107 and the mixing wind of fresh wind port 108, mixed proportion can system required according to comfortableness, controlled by cycle throttle 106 System.And the ratio of circulate in the wind is not to cause vehicle window fogging as target.And power consumption can further be saved by introducing circulate in the wind. If environment temperature is too low, the heating properties of heat pump are not enough, or cause heat pump efficiency relatively low, or even result in heat pump and can not work When, electric heater 103 can be used to aid in heating, heating function is realized together with heat pump.So, the work model of the system Further increasing is enclosed, so that the use scope of electric automobile is expanded, particularly in low-temperature cold region.

Air blower 203 plays conveying to air stream E.Air stream E is delivered in heat generating components 300 by air channel 401, to hair Thermal part is cooled, and it is maintained in suitable working range.When external environment G temperature is higher than the air-out of heat generating components During temperature F, cycle throttle 204 opens the left position into figure, partly or entirely introduces the air-out F of heat generating components.So as to play Save the effect of the energy.When ambient temperature is relatively low, passenger compartment needs heating, and heat generating components can directly draw when need to cool down With extraneous fresh air G, to be cooled down to heat generating components 300, without using working medium circulation to be cooled down for heat generating components 300.Then, by going out Air door on wind air channel 402（It is not shown）, it is back air-conditioning box 200 air-out that controls heat generating components, is still expelled directly out outside car. So, electric energy is further saved, the efficiency of system is improved.

As shown in figure 4, in the winter time under heat generating components preheating mode, compressor 1 consumes certain electric energy, by low-temp low-pressure Gaseous working medium is compressed into the gaseous working medium of HTHP, flows through the second heat exchanger 102, now closing temperature air door 105, then Do not exchanged heat on two heat exchangers 102.After the first triple valve 2, working medium flows directly into heat generating components heat exchanger 201, for heating Part provides heat, for heating heat generating components when needed.Now, the 7th stop valve 16 is closed, and the first stop valve 15 is opened. Moreover, the 5th stop valve 14 is opened, the second stop valve 11, the 3rd stop valve 8 and the 4th stop valve 10 and the 6th stop valve 7 are closed Close, working medium does not flow into Intermediate Heat Exchanger 6, injector 12 is not flowed into yet.

Air blower 203 plays conveying to air stream E.If environment temperature G is too low, heat generating components heated mould can be used Formula, isolated operation heat generating components heat cycles, it is possible to use electric heater 202 come aid in heating, with heat generating components heat cycles Electric car heating function is realized together.When external environment G temperature is less than the leaving air temp F of heat generating components, cycle throttle 204 is opened Left position into figure, is fully incorporated the air-out F of heat generating components.So as to play a part of saving the energy.

Under above-mentioned winter heating's pattern, it can also realize that heat generating components is preheated by opening the first stop valve 15, together When or be individually for passenger compartment or heat generating components thermal source be provided.If being further turned off temperature damper 105, it is possible to which realization is individually for Heat generating components is preheated.

In the winter time under low temperature environment, after the heating mode working time is long, the surface of the 3rd heat exchanger 3 easily freezes（Knot Frost）, reduction even forfeiture heat dispersion, making the efficiency of system reduces or loses heat-production functions.So, need periodically to carry out to system Deicing（Defrosting）.As shown in figure 5, compressor 1 consumes certain electric energy, the gaseous working medium of low-temp low-pressure is compressed into HTHP Gaseous working medium, flow through the second heat exchanger 102.Now, air blower 104 does not work, and does not have air stream A, the gaseous state of HTHP Working medium flows to the 3rd heat exchanger 3 by the first triple valve 2, releases heat, makes the ice on the surface of the 3rd heat exchanger 3（Frost）Remove rapidly Go, recover heating performance.Working medium undergoes phase transition and is condensed into liquid in itself.Liquid refrigerant is divided into two-way, and first segment is flowed through all the way During fluid element 4, make working medium decompression cooling, flow through the low temperature side 61 of Intermediate Heat Exchanger 6.Now the 6th stop valve 7 is opened.

7th stop valve 16 may be selected to turn off or on, and another road liquid refrigerant is flowing through the 3rd restricting element 5 during unlatching When, make working medium decompression cooling, flow through heat generating components heat exchanger 201 and absorb heat of vaporization into gaseous state or part gaseous state.Air blower 203 couples of air stream E play conveying, and air stream E, by cool-down dehumidification, is sent by heat generating components heat exchanger 201 by air channel 401 Into heat generating components 300, heat generating components is cooled, it is maintained in suitable working range., then another road working medium Mixed again with the vapour-liquid mixed working fluid of the low-temp low-pressure of the first via.The vapour-liquid mixed working fluid of low-temp low-pressure, through gas-liquid separator 9 Separation, liquid refrigerant is stored in gas-liquid separator 9, and the gaseous working medium of low-temp low-pressure is compressed into HTHP by compressor 1 again Gaseous working medium, so circulate work.In this manner it is achieved that while deicing battery also can efficient stable work.

The first above-mentioned embodiment also has four kinds of alternative solutions, specifically refer to Fig. 6 to Fig. 9, and Fig. 6 is the automobile in Fig. 2 The pipeline connection diagram of the first alternative solution of air-conditioning system；Fig. 7 is second of automotive air-conditioning system replacement in Fig. 2 The pipeline connection diagram of scheme；Fig. 8 be Fig. 2 in automotive air-conditioning system the third alternative solution pipeline connection signal Figure；Fig. 9 be Fig. 2 in automotive air-conditioning system the 4th kind of alternative solution pipeline connection diagram.

As shown in fig. 6, the main distinction of the first alternative solution and the first above-mentioned embodiment is：In heating mode When, the working medium of first flow path enters high temperature side 62, and the working medium flowed out by the high temperature side 62 is divided into after tie point and the second branch road Throttling；

In tie point, after working medium is throttled by the second restricting element 13, then entered again by Driver Entry and sprayed Device 12, and sprayed by the jet exit of the injector 12, then entered by pipeline in low temperature side 61 and carry out heat exchange, Ran Houyou Enter after the low temperature side 61 outflow in gas-liquid separator 9；

In the second branch road, working medium is entered in the 3rd heat exchanger 3 after being throttled by first throttle element 4 by pipeline to be absorbed Heat.

In addition, the entrance point of First Heat Exchanger 101 is provided with the second triple valve 18, another two interfaces of the second triple valve： One interface is connected with the first triple valve 2, last interface connection stop valve 15 of high temperature side 62 and first.

The main distinction of second of alternative solution and the first above-mentioned alternative solution as shown in Figure 7 is：Heating mould Under formula, tie point and the second branch road, that is, the work flowed out by high temperature side 62 are divided into after the throttling flowed out by high temperature side 62 Matter just separately flows into tie point and the second branch road after first passing through the throttling of the second restricting element 13.

The main distinction of the third alternative solution and the first above-mentioned embodiment as shown in Figure 8 is：In heating mode Under, working medium is segmented into tie point and the second branch road before the high temperature side 62 of Intermediate Heat Exchanger 6 is entered；

The working medium of tie point is entered in injector 12 after first passing through the throttling of the second restricting element 13 by Driver Entry, and Sprayed, then entered again by pipeline in low temperature side 61, the work flowed out by the low temperature side 61 by the jet exit of the injector 12 Matter is flowed back in compressor 1 by gas-liquid separator 9；

In the second branch road, working medium is flowed into high temperature side 62, is flowed out by the high temperature side 62 and is entered the 3rd heat exchanger 3 after throttling Middle absorption heat, absorbing wherein at least after heat has part working medium to be accessed by bypassing draining hole in injector 12.

In addition, as shown in figure 8, being provided with the 8th stop valve 19, low temperature side between the jet exit and high temperature side 62 of injector The second stop valve 11 is provided between 61 and first throttle element 4.

The main distinction of the 4th kind of alternative solution and the first above-mentioned embodiment as shown in Figure 9 is：In a heating mode, Working medium is divided into tie point and the second branch road before the high temperature side 62 of Intermediate Heat Exchanger 6 is entered；

The working medium of tie point flows into high temperature side 62, is flowed into after then throttling by Driver Entry in injector 12, working medium Enter after the jet exit outflow of the injector 12 in low temperature side 61 and carry out heat exchange, the work then flowed out by the low temperature side 61 Matter is flowed back in compressor 1 by gas-liquid separator 9；

The working medium of second branch road enters the 3rd heat exchanger 3 after being throttled through first throttle element 4, then by the 3rd heat exchanger The working medium of 3 outflows is accessed in injector 12 by bypassing draining hole.

In addition, being provided with first throttle element 4 and the 9th section between the right side interface and the 3rd heat exchanger 3 of the first triple valve 2 Only valve 20, are provided with the second stop valve 11 between the jet exit and low temperature side 61 of injector 12.

It should be noted that on other three kinds of mode of operations outside heating mode, above-mentioned four kinds of alternative solutions with it is upper State the first embodiment essentially identical, thus will not be repeated here.

In addition, the present invention also provides second of embodiment, specifically, Figure 10 to Figure 13 is refer to, Figure 10 is real second Apply the pipeline connection diagram of an automotive air-conditioning system in cooling mode；Figure 11 be second embodiment in a heating mode Pipeline connection diagram；Figure 12 is pipeline connection diagram of second of embodiment under battery preheating mode；Figure 13 is second Plant pipeline connection diagram of the embodiment under deice mode.

In second of embodiment, automotive air-conditioning system includes that compressor 1 and compartment external environment carry out heat exchange Three heat exchangers, the first air-conditioning box 100, the second air-conditioning box 200 and at least one restricting element；First air-conditioning box 100 is used to adjust Temperature and/or humidity in compartment, the first air-conditioning box 100 include the heat exchanger 102 of First Heat Exchanger 101 and second；Second air-conditioning Case 200 is used for the temperature of regulation heating part, including heat generating components heat exchanger 201；

Automotive air-conditioning system also includes injector 12 and the flash evaporation connected by pipeline with the jet exit of injector 12 17；The import of second heat exchanger 102 is connected with the outlet of the compressor 1 by pipeline, and second heat exchanger 102 goes out It is divided into two-way in pipeline after mouthful, this two-way is respectively turned on one of them in refrigeration mode and heating mode；

As shown in figure 11, during heating mode, by the second heat exchanger 102 outlet outflow working medium be divided into first flow path and Connection or the second flow path interrupted may be selected：In first flow path, working medium is entered in injector 12 and by it by Driver Entry Jet exit sprays, and then working medium enters progress gas-liquid separation in flash evaporation 17 and is divided into tie point and the second branch road：

Enter after the liquid refrigerant throttling of tie point in the 3rd heat exchanger 3 and absorb heat, then by the 3rd heat exchanger 3 The working medium of outflow is accessed in injector 12 by bypassing draining hole；The gaseous working medium of second branch road flows back to compressor 1；

3rd heat exchanger 3 is flowed into after the throttling of first throttle element 4 by the working medium of second flow path, then passes through bypass Draining hole accesses injector 12.The first stop valve 15 can to stream of the heat generating components heat exchanger 201 again to the 3rd heat exchanger 3 in figure The pipeline of selection conducting is illustrated by the broken lines, wherein the 3rd throttle part 5 is preferably full-gear when this stream is turned on.

As shown in Figure 10, during cooling in summer pattern, the working medium flowed out by the second heat exchanger 102 flows into the 3rd by pipeline and changed Hot device 3, is divided into two-way or is divided into after two-way and throttled after then throttling：In all the way, working medium is flowed into First Heat Exchanger 101 Heat refrigeration is absorbed, the working medium then flowed out by the First Heat Exchanger 101 flows back to compressor 1 by gas-liquid separator 9；Another road Working medium entered by pipeline in heat generating components heat exchanger 201 and absorb heat and freeze, then by flowing back to pressure by gas-liquid separator 9 Contracting machine 1.

As shown in figure 12, during heat generating components preheating mode, working medium by the second heat exchanger 102 flow out after changed into heat generating components Release heat in hot device 201 to heat, subsequently into heat is absorbed in the 3rd heat exchanger 3, working medium is flowed back to by gas-liquid separator 9 again Compressor 1 completes a circulation.

As shown in figure 13, deice mode and refrigeration mode are essentially identical, except that：Under deice mode, air blower 104 and with the 3rd heat exchanger coordinate air blower（Do not mark）Close.The technique effect of the embodiment and the first above-mentioned implementation Example is essentially identical, thus will not be repeated here.

It is pressure letter figure of the air conditioning for automobiles of above example in real work as shown in figure 14.As illustrated, 701 be pressure Contracting machine import, 702 be compressor outlet high temperature side heat exchanger entrance, and 703 be high temperature side compressor outlet, and 703a is that injector drives Dynamic inflow entrance point, 705 points are injector flow type pump with injection entrances；707 points are injector exit points（Flash evaporation entrance）.

Wherein, 701-702 is low-temp low-pressure gaseous refrigerant compression process within the compressor, working medium by compression pressure and Temperature is raised, and the pressure difference before and after this stage compression is bigger, and the requirement to compressor is higher；702-703 is that high temperature is high Gaseous refrigerant is pressed in high temperature side heat exchanger（It is outdoor heat exchanger under refrigerating state, it is indoor heat exchanger to heat under state）In Condensation process, 703-703 ' is that high temperature refrigerant is cooled in Intermediate Heat Exchanger, and 703 ' -703a are reducing pressure by regulating flow processes； 703a-704 is driving stream in injector expansion process；704-706 and 705-706 are that driving stream and flow type pump with injection converged respectively Journey, 706-707 is assemble jamming boost process；707-701 is intermediate pressure refrigerant evaporation process in Intermediate Heat Exchanger；707- 708 be the throttling process of refrigerant；708-709 is refrigerant in low-temperature side heat exchanger（It is indoor heat exchanger, system under refrigerating state It is outdoor heat exchanger under Warm status）Middle evaporation process.

Pressure as can be seen from Figure into the working medium of compressor is of a relatively high, relative to conventional heat pump system, this hair The pressure of inspiration(Pi) of compressor is improved in bright automotive air-conditioning system, compression ratio reduction, therefore can be realized in low-temperature cold area Compare efficient heat pump to heat.

Automotive air-conditioning system provided by the present invention is described in detail above.Specific case pair used herein The principle and embodiment of the present invention is set forth, and the explanation of above example is only intended to the method for helping to understand the present invention And its core concept.It should be pointed out that for those skilled in the art, before the principle of the invention is not departed from Put, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the guarantor of the claims in the present invention In the range of shield.

Claims

1. a kind of automotive air-conditioning system, at least including refrigeration mode and heating mode；The automotive air-conditioning system includes compressor (1), gas-liquid separator (9), the 3rd heat exchanger, the first air-conditioning box (100), the second air-conditioning with the progress heat exchange of compartment external environment Case (200) and at least one restricting element；

First air-conditioning box (100) is used to adjust the temperature and/or humidity in compartment, and the first air-conditioning box (100) includes the first heat exchange Device (101) and the second heat exchanger (102)；Second air-conditioning box (200) is used for the temperature of regulation heating part, including heat generating components is changed Hot device (201)；

Characterized in that, the automotive air-conditioning system also includes injector (12) and Intermediate Heat Exchanger (6), the Intermediate Heat Exchanger (6) include that the low temperature side (61) and high temperature side (62) of heat exchange can be carried out；

The import of second heat exchanger (102) is connected with the outlet of the compressor (1) by pipeline, the second heat exchanger (102) it is divided into two-way in the pipeline after outlet, during refrigeration mode, the conducting all the way in two-way, during heating mode, in two-way At least turn on all the way；

During heating mode, by the second heat exchanger (102) outlet outflow working medium be divided into first flow path and may be selected connection or in Disconnected second flow path：

In first flow path, working medium enters in high temperature side (62), and is entered after the high temperature side (62) outflow by Driver Entry In injector (12), it is divided into tie point and the second branch road after the jet exit ejection of the injector (12)：

In the tie point, working medium carries out heat exchange by low temperature side (61), then flows back to pressure by gas-liquid separator (9) again In contracting machine (1)；

In the second branch road, working medium is flowed into after throttling by pipeline absorbs heat in the 3rd heat exchanger (3), then by this The working medium of three heat exchangers (3) outflow is flowed into injector (12) by bypassing draining hole；

In second flow path, working medium, which enters, releases heat in heat generating components heat exchanger (201), then by the heat generating components heat exchanger (201) working medium of outflow is flowed into after throttling in the 3rd heat exchanger (3).

2. a kind of automotive air-conditioning system as claimed in claim 1, it is characterised in that during refrigeration mode, by the second heat exchanger (102) working medium of outflow is flowed into the 3rd heat exchanger (3) by pipeline, the working medium section then flowed out by the 3rd heat exchanger (3) It is divided into two-way after stream or is divided into after two-way and throttled, the port of export of second heat exchanger (102) is connected with the first triple valve (2), in remaining two interfaces of first triple valve (2), an interface is oriented to pipeline during refrigeration mode, another interface It is oriented to pipeline during heating mode：

In all the way, working medium, which is flowed into after low temperature side (61) in First Heat Exchanger (101), absorbs heat refrigeration, then by this The working medium of one heat exchanger (101) outflow is flowed back in compressor (1) by gas-liquid separator (9)；

In another road, working medium is entered in heat generating components heat exchanger (201) by pipeline absorbs heat refrigeration, then by the heating The working medium of part heat exchanger (201) outflow is flowed back in compressor (1) by gas-liquid separator (9).

3. a kind of automotive air-conditioning system as claimed in claim 2, it is characterised in that in the first flow path, high temperature side (62) Driver Entry of access injector (12), the jet exit of the injector (12) is connected with the second stop valve (11), and this Pipeline after two stop valves (11) is divided into tie point and the second branch road；

In tie point, pipeline is provided with the 3rd stop valve between the port of export and gas-liquid separator (9) of low temperature side (61) (8)；

In the second branch road, pipeline before the entrance point of the 3rd heat exchanger (3) is provided with first throttle element (4), and this Pipeline between three heat exchangers (3) port of export and the bypass draining hole of injector (12) is provided with the 4th stop valve (10).

4. a kind of automotive air-conditioning system as claimed in claim 3, it is characterised in that the 3rd heat exchanger (3) and the 4th stop valve (10) another pipeline that the 5th stop valve (14) is set, and another pipeline access gas-liquid separator are connected with the pipeline between (9) in, the pipeline between the high temperature side (62) and the Driver Entry of injector (12) is provided with the second restricting element (13).

5. a kind of automotive air-conditioning system as described in any one of claim 2 to 4, it is characterised in that in the second flow path, The pipeline of the entrance point connection of heat generating components heat exchanger (201) is provided with the first stop valve (15), the heat generating components heat exchanger (201) pipeline of port of export connection is provided with the 3rd restricting element (5), is then connected by pipeline with the 3rd heat exchanger (3), low The port of export of warm side (61) is further connected in First Heat Exchanger (101) by the 6th stop valve (7), and heat generating components exchanges heat The port of export of the device (201) in refrigeration mode is accessed in gas-liquid separator (9) by the pipeline provided with the 7th stop valve (16).

6. a kind of automotive air-conditioning system, at least including refrigeration mode and heating mode；The automotive air-conditioning system includes compressor (1), gas-liquid separator (9), the 3rd heat exchanger, the first air-conditioning box (100), the second air-conditioning with the progress heat exchange of compartment external environment Case (200) and at least one restricting element；

In first flow path, working medium enters high temperature side (62), is divided into first after the throttling flowed out by the high temperature side (62) Road and the second branch road, or it is divided into throttling after tie point and the second branch road；

In tie point, working medium enters injector (12) by Driver Entry, and is sprayed by the jet exit of the injector (12) Go out, then entered by pipeline and heat exchange is carried out in low temperature side (61), then into gas-liquid point after the low temperature side (61) outflow From in device (9)；

In the second branch road, working medium is entered by pipeline absorbs heat in the 3rd heat exchanger (3), then by the 3rd heat exchanger (3) working medium of outflow is accessed in injector (12) by bypassing communication port；

7. a kind of automotive air-conditioning system, at least including refrigeration mode and heating mode；The automotive air-conditioning system includes compressor (1), gas-liquid separator (9), the 3rd heat exchanger, the first air-conditioning box (100), the second air-conditioning with the progress heat exchange of compartment external environment Case (200) and at least one restricting element；

In tie point, working medium is entered in injector (12) by Driver Entry, and by the jet exit of the injector (12) Spray, then entered again by pipeline in low temperature side (61), the working medium flowed out by the low temperature side (61) passes through gas-liquid separator (9) Flow back in compressor (1)；

In the second branch road, working medium is flowed into high temperature side (62), enters the 3rd heat exchanger after the high temperature side (62) outflow throttling (3) heat is absorbed in, the working medium then flowed out by the 3rd heat exchanger (3) is accessed in injector (12) by bypassing draining hole；

8. a kind of automotive air-conditioning system, at least including refrigeration mode and heating mode；The automotive air-conditioning system includes compressor (1), gas-liquid separator (9), the 3rd heat exchanger, the first air-conditioning box (100), the second air-conditioning with the progress heat exchange of compartment external environment Case (200) and at least one restricting element；

In tie point, working medium is flowed into high temperature side (62), is then flowed into by Driver Entry in injector (12), working medium by Enter after the jet exit outflow of the injector (12) and heat exchange is carried out in low temperature side (61), then flowed out by the low temperature side (61) Working medium flowed back to by gas-liquid separator (9) in compressor (1)；

In the second branch road, enter after throttling in the 3rd heat exchanger (3), the work then flowed out by the 3rd heat exchanger (3) Matter is accessed in injector (12) by bypassing draining hole；

9. a kind of automotive air-conditioning system, at least including refrigeration mode and heating mode；The automotive air-conditioning system includes compressor (1) the 3rd heat exchanger of heat exchange, the first air-conditioning box (100), the second air-conditioning box (200) and at least, are carried out with compartment external environment One restricting element；

Characterized in that, the automotive air-conditioning system also includes injector (12) and the injection by pipeline and injector (12) The flash evaporation (17) of outlet；

In first flow path, working medium is entered in injector (12) by Driver Entry and sprayed by its jet exit, then working medium Gas-liquid separation is carried out into flash evaporation (17) and is divided into tie point and the second branch road：

In tie point, enter after liquid refrigerant throttling and heat is absorbed in the 3rd heat exchanger (3), then by the 3rd heat exchanger (3) working medium of outflow is accessed in injector (12) by bypassing draining hole；

In the second branch road, gaseous working medium is flowed back in compressor (1)；

10. a kind of automotive air-conditioning system as claimed in claim 9, it is characterised in that during refrigeration mode, by the second heat exchanger (102) working medium of outflow is flowed into the 3rd heat exchanger (3) by pipeline, the working medium section then flowed out by the 3rd heat exchanger (3) It is divided into two-way after stream or is divided into after two-way and is throttled：

In all the way, working medium, which is flowed into after throttling in First Heat Exchanger (101), absorbs heat refrigeration, then first is exchanged heat by this The working medium of device (101) outflow with gas-liquid separator (9) by flowing back in compressor (1)；

11. a kind of automotive air-conditioning system as claimed in claim 10, it is characterised in that during heat generating components preheating mode, working medium Enter releasing heat in heat generating components heat exchanger (201) after the second heat exchanger (102) outflow to heat, then by the heat generating components The working medium of heat exchanger (201) outflow enters after throttling absorbs heat in the 3rd heat exchanger (3), working medium is by the 3rd heat exchanger (3) flowed back to after flowing out by gas-liquid separator (9) in compressor (1).