CN207225015U - Automobile, heat pump type air conditioning system, automobile heat pump air conditioner assembly - Google Patents

Abstract

It the utility model is related to a kind of heat pump type air conditioning system, including compressor, in-car heat exchanger, car external heat exchanger, the in-car heat exchanger includes refrigerated heat exchanger and heating heat exchanger, further include heating and start shielding branch, one end that the heating starts shielding branch is connected with the inlet tube of the heating heat exchanger, the other end is connected with the outlet tube of the heating heat exchanger, and the heating starts the heating for being provided with shielding branch and controlling the heating to start shielding branch break-make and starts two-port valve.Above-mentioned air conditioner heat pump system, can improve the delivery temperature and pressure at expulsion of compressor rapidly in a short time, thus heat pump type air conditioning system can be required with reaching heating in the short time, meet the demand that vehicle interior temperature under low temperature improves rapidly.The utility model further relates to a kind of automobile and automobile heat pump air conditioner assembly.

Description

Automobile, heat pump type air conditioning system, automobile heat pump air conditioner assembly

Technical field

It the utility model is related to air conditioning for automobiles production technical field, more particularly to automobile, heat pump type air conditioning system, automobile heat pump Air-conditioning assembly.

Background technology

With expanding economy, requirement of the people to quality of life is also higher and higher, and air-conditioning has not only entered into ordinary people Family in, and be also widely used in various vehicles.

With the development of technology, conventional heat pump type air-conditioning quilt is applied in automobile, using the most especially in electric automobile Extensively, conventional heat pump type air-conditioning generally include to form the compressor of coolant loop, four-way valve, car external heat exchanger, throttle valve and In-car heat exchanger, when needing to be freezed, in-car heat exchanger is used as evaporator, when needing to be heated, passes through four The commutation of port valve makes in-car heat exchanger be used as condenser.

Since the use environment of vehicle is more changeable, heat pump type air conditioning system usually occurs refrigeration and heats what is be used alternatingly Situation, if just being used as the in-car heat exchanger that evaporator uses immediately as condenser, condenses in the car on heat exchanger Water mist will be evaporated to in-car, and water mist condenses forms the phenomenon that hazes in the car on glass, this can seriously affect drive safety.

To solve the above-mentioned problems, in-car heat exchanger is set for two on some cars, in process of refrigerastion, wherein one Used in a in-car heat exchanger access air conditioner loop as evaporator, car external heat exchanger is as condenser；In heating operations, screen The original in-car heat exchanger used as evaporator is covered, another in-car heat exchanger is accessed in air conditioner loop as condenser Use, car external heat exchanger is used as evaporator, so as to solve the problems, such as that lathe hazes.

In heating mode, refrigerant gas that compressor is discharged be after in-car heat exchanger carries out condensation heat release again It is recycled to car external heat exchanger and is evaporated heat absorption, but due to gas temperature that when air-conditioning system just starts, compressor is discharged Degree and gas pressure are all unable to reach heating needs, the wind blown out at this time by in-car air outlet still temperature it is relatively low, it is necessary to through Heating purpose is can be only achieved after crossing the operation of long period, this cannot meet the needs of raising vehicle interior temperature rapidly.

Therefore, how heating when heat pump type air conditioning system high-pressure side is met that heating needs are current sheets The technical problem of field technology personnel's urgent need to resolve.

Utility model content

One of the purpose of this utility model is to provide a kind of heat pump type air conditioning system, to make the height of air-conditioning in heating Pressure lateral pressure and temperature quickly improve, so as to reach the quick effect for improving vehicle interior temperature.

The another object of the utility model, which also resides in, provides a kind of automobile heat formed using above-mentioned heat pump type air conditioning system Pump air-conditioning assembly.

A further object of the utility model, which also resides in, provides a kind of automobile using above-mentioned automobile heat pump air conditioner assembly.

To reach above-mentioned purpose, heat pump type air conditioning system provided by the utility model, including compressor, in-car heat exchanger, car External heat exchanger, the in-car heat exchanger include refrigerated heat exchanger and heating heat exchanger, further include heating and start shielding branch, described One end that heating starts shielding branch is connected with the inlet tube of the heating heat exchanger, and the other end goes out with the heating heat exchanger Connected between liquid pipe, and the heating starts the heating for being provided with shielding branch and controlling the heating to start shielding branch break-make Start two-port valve.

Preferably, the exhaust outlet of the compressor is connected with the first manifold, and first manifold branches into by triple valve One branch pipe and the second branch pipe, the air entry of the compressor are connected with the second manifold, and second manifold is branched into by three-way pipe 3rd branch pipe and the 4th branch pipe, wherein, first branch pipe is connected with the first port of the car external heat exchanger, described second The inlet tube for being connected with the first port of the heating heat exchanger and forming the heating heat exchanger is managed, the 3rd branch pipe is connected to institute State on the first branch pipe, and two-port valve A is provided with the 3rd branch pipe, the 4th branch pipe and the first of the refrigerated heat exchanger Port connection forms the outlet tube of the refrigerated heat exchanger, the 3rd manifold quilts drawn by the second port of the car external heat exchanger The 5th branch and the 6th branch are branched into, throttling arrangement, the 5th branch and the heating are provided with the 3rd manifold The second port connection of heat exchanger forms the outlet tube of the heating heat exchanger, the 6th branch and the refrigerated heat exchanger Second port connection forms the inlet tube of the refrigerated heat exchanger, and is provided with two-port valve B, further including on the 6th branch White branch, one end of the defrost branch are connected with the 3rd manifold, and the other end is connected with second manifold, and describedization Two-port valve D is additionally provided with white branch.

Preferably, a flash evaporation is also serially connected with the 3rd manifold, the flash evaporation passes through tonifying Qi pipeline and the pressure The gas supplementing opening connection of contracting machine.

Preferably, two throttling arrangements, and two throttling arrangement difference positions are provided with the 3rd manifold In the upstream end of the flash evaporation and downstream.

Preferably, check valve, or two-port valve C are additionally provided with the tonifying Qi pipeline.

Preferably, the check valve for only allowing refrigerant to flow out the heating heat exchanger is additionally provided with the 5th branch.

Preferably, also it is serially connected with gas-liquid separator on second manifold.

Automobile heat pump air conditioner assembly disclosed in the utility model, including heat pump type air conditioning system disclosed above, further include HVAC babinets, are provided with traction wind turbine, the refrigerated heat exchanger and the heating are changed close to the air inlet of the HVAC babinets Hot device is arranged side by side in the HVAC babinets, and fills up the section of the HVAC babinets, the gas introduced by the traction wind turbine Stream passes through the refrigerated heat exchanger and the heating heat exchanger.

Preferably, the refrigerated heat exchanger is located at windward side, and the heating heat exchanger is located at leeward side.

Preferably, the auxiliary heater being arranged in the HVAC babinets is further included.

Preferably, changes in temperature air door is further included, when the changes in temperature air door is located at first position, air-flow is all without described auxiliary Help heater；When the changes in temperature air door is located at the second place, an air-flow part passes through the auxiliary heater；The changes in temperature air door During positioned at the third place, air-flow is all by the auxiliary heater.

Preferably, the air inlet of the HVAC is provided with internal-external cycle throttle, and the internal-external cycle throttle is located at first During position, the air inlet of the HVAC babinets is interlinked to the outside with car；When the internal-external cycle throttle is located at the second place, the HVAC The air inlet of babinet is communicated with outside car with in-car at the same time；When the internal-external cycle throttle is located at the third place, the HVAC babinets Air inlet communicated with in-car.

Preferably, the car external heat exchanger position is additionally provided with variable air inlet grid, and for the car external heat exchanger The fan of ventilation.

Automobile disclosed in the utility model, including the as above automobile heat pump air conditioner assembly described in any one.

Preferably, the automobile is electric automobile or oil-electric vehicle.

As can be seen from the above technical solutions, in the heat pump type air conditioning system disclosed in the utility model, there is provided heating Start shielding branch, one end that heating starts shielding branch is connected with heating the inlet tube of heat exchanger, the other end and cooling heat exchange Connected between the outlet tube of device, and heat to start and the heating that control heating starts shielding branch break-make is provided with shielding branch Start two-port valve.

In low-temperature heating, heating starts the refrigeration for not yet reaching heating and requiring that two-port valve is open-minded, is discharged by compressor Agent gas is to bypass after heating heat exchanger is directly entered car external heat exchanger without in-car heating heat exchanger and comes back to pressure It is compressed in contracting machine, since heating heat exchanger being shielded, whole circulation loop becomes shorter, and refrigerant is in whole circuit Can be with Rapid Circulation, therefore the pressure and temperature of the refrigerant of exhaust outlet of compressor position is all improved rapidly, can be very short Time in reach heating needs, after the pressure at expulsion and delivery temperature of compressor reach requirement, close heating start two-way Valve, makes the high temperature and pressure cold media gas that exhaust outlet of compressor is discharged enter in heating heat exchanger and in-car is heated.

It can be seen from the above that the air conditioner heat pump system disclosed in the utility model, can improve compression rapidly in a short time The delivery temperature and pressure at expulsion of machine, thus heat pump type air conditioning system can be required with reaching heating in the short time, be met under low temperature The demand that vehicle interior temperature improves rapidly.

Automobile heat pump air conditioner assembly disclosed in the utility model, as a result of above-mentioned heat pump type air conditioning system, therefore The automobile heat pump air conditioner assembly has the advantages of above-mentioned heat pump type air conditioning system is corresponding concurrently.

Automobile disclosed in the utility model, as a result of above-mentioned automobile heat pump air conditioner assembly, therefore the automobile Have the advantages of above-mentioned heat pump type air conditioning system is corresponding concurrently.

Brief description of the drawings

Fig. 1 is the low-temperature heating start-up mode of the automobile heat pump air conditioner assembly disclosed in the utility model first embodiment When system circulation schematic diagram；

Fig. 2 is the refrigeration mode system circulation of the automobile heat pump air conditioner assembly disclosed in the utility model first embodiment Schematic diagram (does not show that heating starts shielding branch)；

Fig. 3 is the heating mode system circulation of the automobile heat pump air conditioner assembly disclosed in the utility model first embodiment Schematic diagram (does not show that heating starts shielding branch)；

Fig. 4 is the defrost pattern system circulation of the automobile heat pump air conditioner assembly disclosed in the utility model first embodiment Schematic diagram (does not show that heating starts shielding branch)；

Fig. 5 is that the principle schematic of the automobile heat pump air conditioner assembly disclosed in the utility model second embodiment (is not shown Show that heating starts shielding branch)；

Fig. 6 is flow path schematic diagram when car external heat exchanger freezes and heats in this case.

Wherein, 11 be compressor, and 12 be triple valve, and 13 be two-port valve A, and 14 be check valve, and 15 be heating heat exchanger, and 16 are Refrigerated heat exchanger, 17 be two-port valve B, and 18 be gas-liquid separator, and 19 be throttling arrangement, and 21 be fan, and 22 be car external heat exchanger, 23 It is flash evaporation for variable air inlet grid, 24,25 be two-port valve C, and 26 be two-port valve D, and 27 start two-port valve for heating, and 30 be HVAC Babinet, 31 be internal-external cycle throttle, and 32 be traction wind turbine, and 33 be changes in temperature air door, and 34 be auxiliary heater, and 35a, 35b, 35c are equal For three-way pipe.

Embodiment

One of core of the utility model is to provide a kind of heat pump type air conditioning system, to make the height of air-conditioning in heating Pressure lateral pressure and temperature quickly improve, so as to reach the quick effect for improving vehicle interior temperature.

Another core of the utility model is to provide a kind of automobile heat pump formed using above-mentioned heat pump type air conditioning system Air-conditioning assembly.

Another core of the utility model, which also resides in, provides a kind of automobile using above-mentioned automobile heat pump air conditioner assembly.

In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied The utility model is described in further detail for mode.

Need to illustrate, in the attached drawing of the utility model, the dotted line in heat pump system represents pipeline cut-off, does not have There is a refrigerant circulation, it is unimpeded that solid line represents pipeline, there is refrigerant circulation in pipeline, and the arrow in heat pump circuits represents refrigerant flowing side To hollow arrow represents gas flow direction.

It please also refer to Fig. 1 to Fig. 4, heat pump type air conditioning system disclosed in an embodiment of the present invention, including compressor 11st, in-car heat exchanger, car external heat exchanger 22, and in-car heat exchanger specifically includes the cooling heat exchange for providing cold for in-car Device 16, and for providing the heating heat exchanger 15 of heat, the core of the heat pump type air conditioning system disclosed in the present embodiment for in-car Improvement is, is additionally provided with heating and starts shielding branch, and as shown in fig. 1, heating starts one end and the heating of shielding branch The inlet tube connection of heat exchanger 15, the other end are connected with heating the outlet tube of heat exchanger 15, and are heated on startup shielding branch It is additionally provided with the heating startup two-port valve that control heating starts shielding bypass passage.

Please refer to Fig.1, in low-temperature heating, heating startup two-port valve is open-minded, not yet reaches system by what compressor 11 was discharged The refrigerant gas of heat request is to bypass heating heat exchanger 15 and is directly entered outside car and change without in-car heating heat exchanger 15 Come back in compressor 11 and be compressed after hot device 22, since heating heat exchanger 15 being shielded, whole circulation loop becomes It is shorter, refrigerant can be with Rapid Circulation in whole circuit, therefore the pressure and temperature of the refrigerant of 11 vent position of compressor All improved rapidly, heating needs can be reached in a short period of time, when the pressure at expulsion and delivery temperature of compressor 11 After reaching requirement, close heating and start two-port valve, the high temperature and pressure cold media gas that 11 exhaust outlet of compressor is discharged is entered system In-car is heated in heat exchanger 15.

More specifically, shown in as shown in Figure 1 to Figure 4, the exhaust outlet of compressor 11 is connected with the first manifold, the first manifold quilts Triple valve 12 branches into the first branch pipe and the second branch pipe, and the air entry of compressor 11 is connected with the second manifold, and the second manifold is by three Siphunculus 35b branches into the 3rd branch pipe and the 4th branch pipe, wherein, the first branch pipe is connected with the first port of car external heat exchanger 22, the Two branch pipes connect the inlet tube of composition heating heat exchanger 15 with heating the first port of heat exchanger 15, and the 3rd branch pipe passes through three-way pipe 35a is connected on the first branch pipe, and two-port valve A is provided with the 3rd branch pipe, the first port of the 4th branch pipe and refrigerated heat exchanger 16 Connection forms the outlet tube of refrigerated heat exchanger 16, and the 3rd manifold drawn by the second port of car external heat exchanger 22 is by three-way pipe 35c branches into the 5th branch and the 6th branch, and throttling arrangement 19, the 5th branch and heating heat exchanger 15 are provided with the 3rd manifold Second port connection form the outlet tube of heating heat exchanger 15, the 6th branch connects structure with the second port of refrigerated heat exchanger 16 Into the inlet tube of refrigerated heat exchanger 16, and two-port valve B is provided with the 6th branch, further includes defrost branch, the one of defrost branch End is connected with the 3rd manifold, and the other end is connected with the second manifold, and two-port valve D is additionally provided with defrost branch.

Please refer to Fig.2, in refrigeration mode, triple valve 12 acts, and connects the first branch pipe, and the second branch pipe is closed；Control Make the two-port valve A and close the 3rd branch pipe, and control two-port valve B to connect the 6th branch pipe, control two-port valve D closes defrost branch Pipe, the refrigerant gas for the high temperature and pressure discharged by compressor 11 carry out condensing heat-exchange into car external heat exchanger 22, then pass through Entered after the throttling of throttling arrangement 19 in refrigerated heat exchanger 16 and be evaporated heat absorption, the refrigerant gas after evaporation endothermic is again Circulated next time in into compressor 11；

Please refer to Fig.3, in heating mode, control triple valve 12 acts, and closes the first branch pipe, and the second branch pipe connects It is logical；Controlling two-port valve A to connect the 3rd branch pipe, and control two-port valve B to close the 6th branch pipe, control two-port valve D closes defrost branch pipe, Control the heating to start two-port valve 27 to close, the refrigerant gas for the high temperature and pressure discharged by compressor 11 enters heating and exchanges heat Device 15 carries out condensing heat-exchange, is then entered after the throttling of throttling arrangement 19 in car external heat exchanger 22 and is evaporated heat absorption, Refrigerant gas after evaporation endothermic is reentered in compressor 11 after the 3rd branch pipe and the second manifold and followed next time Ring.

More specifically, heating mode specifically includes common heating mode and low-temperature heating start-up mode, above-described embodiment In heating mode be common heating mode, low-temperature heating start-up mode is：Control triple valve 12 acts, and closes the first branch pipe Close, the connection of the second branch pipe；Control heating starts the unlatching heating of two-port valve 27 and starts shielding branch, control two-port valve A connections the 3rd Branch pipe, and control two-port valve B to close the 6th branch pipe, control two-port valve D closes defrost branch pipe, in the refrigerant of 11 exhaust outlet of compressor After temperature and refrigerant pressure reach preset value, above-mentioned common heating mode is switched to by low-temperature heating start-up mode.

As can be seen from the above embodiments, since the heat exchanger for freezing in in-car heat exchanger and heating is not same, because This will not relate to high-low pressure transfer problem in cooling and warming State Transferring, and compressor 11 is only logical without frequency reducing or shutdown Crossing the co-operating of triple valve 12 and multiple two-port valves can quickly change implementation pattern, improve heat pump type air conditioning system refrigerated medium The speed of Warm status conversion, improves the comfort of user.

In order to further optimize the technical solution in above-described embodiment, a flash evaporation 24 can be also concatenated on the 3rd manifold, As shown in Figure 5, flash evaporation 24 is connected by tonifying Qi pipeline with the gas supplementing opening of compressor 11, in the upstream end of flash evaporation 24 with Trip end is both provided with restricting element, and in a heating mode, the refrigerant by throttling enters flash evaporation 24, and the gas that shwoot comes out returns Gas supplementing opening to compressor 11 completes tonifying Qi, and to reach the effect of Gas-supplying enthalpy-increasing, compressor 11 can use double stage compressor 11, coordinate 24 use of flash evaporation to greatly improve heating capacity and be limited at a temperature of extending heat pump air conditioner use.

The reflux of refrigerant, check valve 14 is additionally provided with the 5th branch after being changed in order to avoid cooling and warming process, The check valve 14 only allows refrigerant outflow out of heating heat exchanger 15, in order to avoid the refrigerant in tonifying Qi pipeline flows back, mends Two-port valve D is provided with air pipe, may also set up check valve 14 certainly, as shown in Fig. 1 to Fig. 5, compressor in order to prevent 11 there is liquid hammer, ensure the reliability that compressor 11 works, gas-liquid separator 18 can be also concatenated on the second manifold, so as to by liquid Body refrigerant is separated, and avoids it from being directly entered in compressor 11.

It is empty that a kind of automobile heat pump assembled by above-mentioned heat pump type air conditioning system is also disclosed in the utility model embodiment Assembly is adjusted, which further includes HVAC babinets in addition to including the heat pump type air conditioning system disclosed in above-described embodiment 30 (Heating, Ventilation and AirConditioning heating ventilations and air adjustment babinets), close to the HVAC The air inlet of babinet 30 is provided with traction wind turbine 32, and refrigerated heat exchanger 16 and heating heat exchanger 15 are arranged at HVAC babinets 30 It is interior, and the section of HVAC babinets 30 is filled up, and the air-flow introduced by traction wind turbine 32 is by refrigerated heat exchanger 16 and heating Heat exchanger 15.

Please refer to Fig.1 to Fig. 5, refrigerated heat exchanger 16 and heating heat exchanger 15 and be disposed side by side in HVAC babinets 30, and And two heat exchangers fill up the section of HVAC, therefore the heat exchange area of refrigerated heat exchanger 16 and heating heat exchanger 15 is enough Greatly, this can equally effectively improve the heat exchange efficiency of in-car side.

Fig. 1 to Fig. 5 is the structure diagram of automobile heat pump air conditioner assembly in the utility model embodiment, the arrow generation in figure Table be air flow direction, HVAC babinets 30 be air inlet close to the opening of traction wind turbine 32, and air inlet is provided with interior Outer circulation air door 31, internal-external cycle throttle 31 have three adjusting positions, when internal-external cycle throttle 31 is located at first position, HVAC The air inlet of babinet 30 is interlinked to the outside with car, realizes outer circulation；When internal-external cycle throttle 31 is located at the second place, HVAC babinets 30 Air inlet is communicated with outside car with in-car at the same time, realizes inner-outer circulation；When internal-external cycle throttle 31 is located at the third place, HVAC babinets 30 air inlet is communicated with in-car, is realized interior circulation, is additionally provided with auxiliary heater 34 in HVAC babinets 30, the auxiliary heater 34 are located at the leeward side of in-car heat exchanger, and 34 position of auxiliary heater is additionally provided with changes in temperature air door 33, and the changes in temperature air door 33 is same Including three adjusting positions, when changes in temperature air door 33 is located at first position, air-flow is all without auxiliary heater 34；Changes in temperature air door 33 when being located at the second place, and an air-flow part passes through auxiliary heater 34；When changes in temperature air door 33 is located at the third place, air-flow is whole By the auxiliary heater 34, during in order to ensure dehumidifying, inlet air can first pass through refrigerated heat exchanger 16, after exchange heat by heating Device 15, is preferably arranged on windward side, heating heat exchanger 15 is arranged on leeward side, such as institute in Fig. 1 to 5 by refrigerated heat exchanger 16 Show.

Certainly, in order to ensure fully to exchange heat to the car external heat exchanger 22 in automobile heat pump air conditioner assembly, it is also necessary to set Variable air inlet grid 23 and the fan 21 for divulging information to car external heat exchanger 22 are equipped with, can by the deformation of variable air inlet grid 23 To change draught area.

In addition, a kind of control method of above-mentioned automobile heat pump air conditioner assembly, the control are also disclosed in the utility model Method processed includes：

In cooling mode, control triple valve 12 acts, and connects the first branch pipe, and the second branch pipe is closed；Control two-way Valve A closes the 3rd branch pipe, and controls two-port valve B to connect the 6th branch pipe, and control two-port valve D closes defrost branch pipe；In heating mode Under, including common heating mode and low-temperature heating start-up mode, wherein common heating mode is：Control triple valve 12 acts, and Close the first branch pipe, the connection of the second branch pipe；Control two-port valve A to connect the 3rd branch pipe, and control two-port valve B to close the 6th Pipe, control two-port valve D close defrost branch pipe；Low-temperature heating start-up mode is：Control triple valve 12 acts, and closes the first branch pipe Close, the connection of the second branch pipe；Control heating starts two-port valve unlatching heating and starts shielding branch, and control two-port valve A connects the 3rd Pipe, and control two-port valve B to close the 6th branch pipe, control two-port valve D closes defrost branch pipe, in the refrigerant temperature of 11 exhaust outlet of compressor After degree and refrigerant pressure reach preset value, common heating mode is switched to by low-temperature heating start-up mode.

Freezing with common heating mode, air-treatment is being carried out in HVAC babinets 30, air passes through internal-external cycle throttle 31 are pulled into air passage by draw wind turbine 32, cool down by refrigerated heat exchanger 16, or by heating heat exchanger 15 plus Heat, being then heated or not heated by changes in temperature air door 33 is selective by auxiliary heater 34, finally according to HVAC difference wind Mouthful switch conditions, treated comfort air is sent to blow face air door, blow foot air door or demisting air door at.In refrigeration mode Under, variable air inlet grid 23 is opened, fan 21 can according to speed come decide whether open provide air blast cooling heat exchange, HVAC into Internal-external cycle throttle 31 at air port can realize interior circulation, outer circulation according to logic decision or artificial selection or inside and outside follow Ring.

Defogging mode is further included in above-mentioned control method, in defogging mode：Control triple valve 12 acts, and makes first Pipe connects, and the second branch pipe is closed；Control two-port valve A to close the 3rd branch pipe, and control two-port valve B to connect the 6th branch pipe, control institute State two-port valve D and close defrost branch pipe, the heat pump type air conditioning system under defogging mode is really the refrigeration mode run, in the mould Formula system, air-inlet grille are opened, to enable car external heat exchanger 22 sufficiently to carry out cooling heat transferring to refrigerant.In defogging mode Under, carry out air-treatment in HVAC babinets 30, air is pulled into wind by internal-external cycle throttle 31 by draw wind turbine 32 Road, cool-down dehumidification is carried out by refrigerated heat exchanger 16, then passes through auxiliary heater 3424 by the selectivity of changes in temperature air door 3323 It is heated or not heated, finally treated comfort air is sent at demisting air door.

22 defrost pattern of car external heat exchanger (abbreviation defrost pattern), under defrost pattern, control triple valve 12 acts, and makes First branch pipe connects, and the second branch pipe is closed；Control two-port valve A to close the 3rd branch pipe, and control two-port valve B to close the 6th branch pipe, Two-port valve D is controlled to connect defrost branch.Fig. 4 is please also refer to, in defrost pattern, car external heat exchanger 22 will be used as condenser, The frost on car external heat exchanger 22 is melted with will pass through the condensation heat release of refrigerant, in order to avoid blowing a cold wind over to in-car, this When open defrost branch, the refrigerant flowed out by car external heat exchanger 22 is bypassed after in-car heat exchanger through being back to by defrost branch Compressor 11, avoiding problems the in-car situation appearance blown a cold wind under defrost pattern, at the same time, can control auxiliary heater 34 open, and changes in temperature air door 33 is located at the third place, makes air into the car all by auxiliary heater 34, so as in defrost When to in-car blowing hot-air, improve the comfort of user.Under defrost pattern, variable air inlet grid 23 and fan 21 are turned off, To avoid the thermal loss of car external heat exchanger 22, so as to improve defrost efficiency.

, it is necessary to be converted to heating mode by defrost pattern after defrost is completed, variable grid is opened at this time, 21 basis of fan Speed is turned on and off, while auxiliary heater 34 disposably can be closed directly, or the progress with conventional heating, gradually drop Low heating power is until stop heating.

A kind of automobile, including automobile heat pump air conditioner assembly are also disclosed in the utility model embodiment, the automobile heat pump is empty Adjust heat pump air conditioner assembly of the assembly disclosed in above-mentioned any one embodiment.

As a result of above-mentioned heat pump air conditioner assembly, therefore to have above-mentioned automobile heat pump air conditioner assembly concurrently excellent accordingly for the automobile Point, herein no longer repeats this.

Need to illustrate, above-mentioned automobile includes but not limited to pure electric automobile and oil-electric vehicle.

Automobile provided by the utility model, heat pump type air conditioning system, automobile heat pump air conditioner assembly have been carried out in detail above Introduce.Specific case used herein is set forth the principle and embodiment of the utility model, above example Illustrate to be only intended to help the method and its core concept for understanding the utility model.It should be pointed out that for the general of the art For logical technical staff, on the premise of the utility model principle is not departed from, some improvement can also be carried out to the utility model And modification, these are improved and modification is also fallen into the protection domain of the utility model claims.

Claims (15)

1. a kind of heat pump type air conditioning system, including compressor (11), in-car heat exchanger, car external heat exchanger (22), the in-car heat exchange Device includes refrigerated heat exchanger (16) and heating heat exchanger (15), it is characterised in that further includes heating and starts shielding branch, the system One end of thermal starting shielding branch is connected with the inlet tube of the heating heat exchanger (15), the other end and the heating heat exchanger (15) outlet tube connection, and the heating starts and the control heating is provided with shielding branch starts shielding branch break-make Heating starts two-port valve (27).

2. heat pump type air conditioning system according to claim 1, it is characterised in that the exhaust outlet and first of the compressor (11) Manifold is connected, and first manifold branches into the first branch pipe and the second branch pipe, the suction of the compressor (11) by triple valve (12) Gas port is connected with the second manifold, and second manifold branches into the 3rd branch pipe and the 4th branch pipe by three-way pipe, wherein, described first Branch pipe is connected with the first port of the car external heat exchanger (22), second branch pipe and the first of the heating heat exchanger (15) Port connection forms the inlet tube of the heating heat exchanger (15), and the 3rd branch pipe is connected on first branch pipe, and described Two-port valve A (13) is provided with 3rd branch pipe, the 4th branch pipe connects structure with the first port of the refrigerated heat exchanger (16) Into the outlet tube of the refrigerated heat exchanger (16), the 3rd manifold drawn by the second port of the car external heat exchanger (22) is divided Five branches of Zhi Wei and the 6th branch, throttling arrangement (19), the 5th branch and the system are provided with the 3rd manifold The second port connection of heat exchanger (15) forms the outlet tube of the heating heat exchanger (15), the 6th branch and the system The second port connection of cold heat exchanger (16) forms the inlet tube of the refrigerated heat exchanger (16), and is set on the 6th branch There is two-port valve B (17), further include defrost branch, one end of the defrost branch is connected with the 3rd manifold, the other end and institute The second manifold connections are stated, and two-port valve D (26) is additionally provided with the defrost branch.

3. heat pump type air conditioning system according to claim 2, it is characterised in that be also serially connected with a shwoot on the 3rd manifold Device (24), the flash evaporation (24) are connected by tonifying Qi pipeline with the gas supplementing opening of the compressor (11).

4. heat pump type air conditioning system according to claim 3, it is characterised in that be provided with the 3rd manifold described in two Throttling arrangement (19), and two throttling arrangements (19) are located at the upstream end and downstream of the flash evaporation (24) respectively.

5. heat pump type air conditioning system according to claim 3, it is characterised in that be additionally provided with check valve on the tonifying Qi pipeline Or two-port valve C (25) (14),.

6. heat pump type air conditioning system according to claim 2, it is characterised in that being additionally provided with the 5th branch only allows The check valve (14) of the refrigerant outflow heating heat exchanger (15).

7. heat pump type air conditioning system according to claim 2, it is characterised in that gas-liquid point is also serially connected with second manifold From device (18).

8. a kind of automobile heat pump air conditioner assembly, including the heat pump type air conditioning system as described in claim 2-7 any one, its feature It is, further includes HVAC babinets (30), the air inlet of the HVAC babinets (30) is provided with traction wind turbine (32), it is described Refrigerated heat exchanger (16) and the heating heat exchanger (15) are arranged side by side in the HVAC babinets (30), and fill up the HVAC The section of babinet (30), the air-flow introduced by the traction wind turbine (32) pass through the refrigerated heat exchanger (16) and the heating Heat exchanger (15).

9. automobile heat pump air conditioner assembly according to claim 8, it is characterised in that the refrigerated heat exchanger (16), which is located at, meets Wind side, the heating heat exchanger (15) are located at leeward side.

10. automobile heat pump air conditioner assembly according to claim 9, it is characterised in that further include and be arranged on the HVAC casees Auxiliary heater (34) in body (30).

11. automobile heat pump air conditioner assembly according to claim 10, it is characterised in that further include changes in temperature air door (33), institute When stating changes in temperature air door (33) and being located at first position, air-flow is all without the auxiliary heater (34)；The changes in temperature air door (33) when being located at the second place, an air-flow part is by the auxiliary heater (34)；The changes in temperature air door (33) is located at the 3rd During position, air-flow is all by the auxiliary heater (34).

12. automobile heat pump air conditioner assembly according to claim 11, it is characterised in that the air inlet of the HVAC is set There is internal-external cycle throttle (31), when the internal-external cycle throttle (31) is located at first position, the inlet air of the HVAC babinets (30) Mouth is interlinked to the outside with car；When the internal-external cycle throttle (31) is located at the second place, the air inlet of the HVAC babinets (30) is at the same time Communicated with outside car with in-car；When the internal-external cycle throttle (31) is located at the third place, the air inlet of the HVAC babinets (30) Communicated with in-car.

13. automobile heat pump air conditioner assembly according to claim 12, it is characterised in that car external heat exchanger (22) position It is additionally provided with variable air inlet grid (23), and the fan (21) for divulging information to the car external heat exchanger (22).

14. a kind of automobile, including automobile heat pump air conditioner assembly, it is characterised in that the automobile heat pump air conditioner assembly is such as right It is required that the automobile heat pump air conditioner assembly described in one of 8-13.

15. automobile according to claim 14, it is characterised in that the automobile is electric automobile or oil electric mixed dynamic vapour Car.