CN106042827A - Electric automobile air conditioning system, electric automobile and control method of electric automobile air conditioning system - Google Patents
Electric automobile air conditioning system, electric automobile and control method of electric automobile air conditioning system Download PDFInfo
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- CN106042827A CN106042827A CN201610393905.9A CN201610393905A CN106042827A CN 106042827 A CN106042827 A CN 106042827A CN 201610393905 A CN201610393905 A CN 201610393905A CN 106042827 A CN106042827 A CN 106042827A
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- pipeline
- heat exchanger
- valve
- car
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
Abstract
The invention provides an electric automobile air conditioning system which comprises a compressor, a four-way valve, an extra-automobile heat exchanger, a first intra-automobile heat exchanger, a second intra-automobile heat exchanger, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first control valve and a second control valve. When the extra-automobile heat exchanger needs to be used for defrosting, a first end opening of the four-way valve communicates with a fourth end opening, a second end opening communicates with a third end opening, and a second branch communicates with the first pipeline and the second pipeline; and the first control valve controls the third pipeline to be connected, the second control valve controls the fourth pipeline to be connected, and a first branch is disconnected from the first pipeline and the second pipeline. The invention further provides an electric automobile and a control method of the electric automobile air conditioning system. By the adoption of the electric automobile air conditioning system, the electric automobile and the control method of the electric automobile air conditioning system, continuous heating in the automobile can be achieved in the defrosting process of the extra-automobile heat exchanger, and the comfort in the automobile is guaranteed.
Description
Technical field
The present invention relates to electric vehicle engineering field, particularly relate to a kind of electric automobile air-conditioning system, electric automobile with
And the control method of electric automobile air-conditioning system.
Background technology
Pure electric automobile is compared with traditional internal combustion engine and hybrid vehicle, owing to not having the waste heat of electromotor
Can utilize, its automotive air-conditioning system typically uses the mode of single cold air-conditioning+PTC (critesistor).When heating in the winter time, use
PTC electrical heating carries out heating, but the electrically heated efficiency of PTC the lowest (the highest be not more than 1), therefore winter air-conditioning is heating
During mode operation, need to expend substantial amounts of electric energy and heat, so can be greatly shortened the course continuation mileage of electric automobile.At pure electricity
Heat pump type air conditioning system is used to carry out heating and can overcome drawbacks described above on electrical automobile, but heat pump type air conditioning system low temperature ring in the winter time
In border can there is heating capacity deficiency, and the easy frosting of car external heat exchanger in operation, and air-conditioning needs to be switched to defrosting by heating mode
Pattern carries out timely defrost, now, stopping is heated inside car, and during defrost, vehicle interior temperature reduces, and affects heating effect, in car
Comfortableness is poor.
Summary of the invention
In view of the air conditioning system of prior art during defrost cannot the problem run of continuous heating, the purpose of the present invention exists
In providing a kind of electric automobile air-conditioning system, electric automobile and the control method of electric automobile air-conditioning system, it is ensured that the defrost phase
Between heating effect, improve comfortableness in car.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of electric automobile air-conditioning system, including heat exchanger in compressor, cross valve, car external heat exchanger, the first car, second
Heat exchanger, the first pipeline, the second pipeline, the 3rd pipeline and the 4th pipeline and the first control valve and the second control valve in car；Institute
State heat exchanger in the first control valve, described first car, described second control valve is sequentially connected in series formation the first branch road, described second car
Interior heat exchanger forms the second branch road；
The air vent of described compressor connects the first port of described cross valve, and the second port of described cross valve connects institute
State the first pipeline；Be connected to described first branch road and described second branch circuit parallel connection described first pipeline and described second pipeline it
Between, the first end of car external heat exchanger described in described second pipeline connection, the second end of described car external heat exchanger connects described four-way
4th port of valve, the 3rd port of described cross valve connects the air entry of described compressor；
Described 3rd pipeline is connected to the first end and first end of described car external heat exchanger of heat exchanger in described first car
Between, described 4th pipeline be connected to the second end of heat exchanger in described first car and described car external heat exchanger the second end it
Between；
When described car external heat exchanger needs defrost, the first port of described cross valve and the connection of the 4th port, the second end
Mouth connects with the 3rd port, described second branch road and described first pipeline and described second pipeline connection；Described first control valve
Described 3rd pipeline and described 4th pipeline conducting, described first branch road and described first pipeline is controlled with described second control valve
Disconnect with described second pipeline；When described car external heat exchanger needs freeze or heat, by described first control valve and
Described second control valve controls described 3rd pipeline and described 4th pipeline is closed.
Wherein in an embodiment, described first control valve is the first three-way valve, and described second control valve is the two or three
Logical valve；
First valve port of described first three-way valve connects described first pipeline, and the second valve port of described first three-way valve is successively
Connecting heat exchanger and the first valve port of described second three-way valve in described first car, the second valve port of described second three-way valve connects
Described second pipeline；3rd valve port of described first three-way valve is connected to the of described car external heat exchanger by described 3rd pipeline
One end；3rd valve port of described second three-way valve is connected to the second end of described car external heat exchanger by described 4th pipeline.
Wherein in an embodiment, described second branch road is additionally provided with the one end being positioned at described second car heat exchanger
The first electronic valve.
Wherein in an embodiment, also include the check valve being arranged on described 3rd pipeline.
Wherein in an embodiment, also including first throttle device, described first throttle device one end connects described the
Three pipelines and the first end of described car external heat exchanger, the other end of described first throttle device connects described second pipeline.
Wherein in an embodiment, also including the second throttling arrangement, described 3rd pipeline is by described second throttling dress
Put the first end being connected to described car external heat exchanger.
Wherein in an embodiment, also including fluid reservoir, the first end of described fluid reservoir is by described second throttling dress
Putting the first end connecting described car external heat exchanger, the second end of described fluid reservoir connects described 3rd pipeline, described fluid reservoir
3rd end connects described first throttle device.
Wherein in an embodiment, also including fluid reservoir, the first end of described fluid reservoir connects described car external heat exchanger
The first end, the second end of described fluid reservoir connects described 3rd pipeline, first segment described in the three-terminal link of described fluid reservoir
Stream device.
Wherein in an embodiment, also include the second throttling arrangement and flash vessel；First end of described flash vessel passes through
Described second throttling arrangement is connected to the first end of described car external heat exchanger and described 3rd pipeline, the second end of described flash vessel
Connecting described first throttle device, the 3rd end of described flash vessel connects the gas supplementing opening of described compressor.
Wherein in an embodiment, also include the second electronic valve；Described second electronic valve is connected to described flash distillation
Between 3rd end and the gas supplementing opening of described compressor of device.
Wherein in an embodiment, described compressor is the quasi-double-stage compressor of vortex, birotor twin-stage Gas-supplying enthalpy-increasing pressure
Contracting machine or the combination of two single-stage compressors.
Wherein in an embodiment, also include first throttle device and the second throttling arrangement, described first throttle device
Being connected on described 3rd pipeline, described first throttle device connects described second pipeline；One end of described second throttling arrangement
Connecting the first end of described car external heat exchanger, the other end of described second throttling arrangement connects described second pipeline.
Wherein in an embodiment, also include that gas-liquid separator, described gas-liquid separator are connected to described compressor
Between air entry and the 3rd port of described cross valve.
Wherein in an embodiment, in described first car, heat exchanger is condenser, and in described second car, heat exchanger is for steaming
Send out device.
Present invention also offers a kind of electric automobile, including the electric automobile air-conditioning system described in any of the above-described item.
Additionally, present invention also offers the control method of a kind of electric automobile air-conditioning system, for described in any of the above-described item
Electric automobile air-conditioning system, including:
Judge that described car external heat exchanger the need of defrost, the most then controls first port and the 4th of described cross valve
Port connects, the second port of described cross valve and the connection of the 3rd port；Described second branch road and described first pipeline and described
Second pipeline connection；Described 3rd pipeline and described 4th pipeline is controlled by described first control valve and described second control valve
Conducting, described first branch road disconnects with described first pipeline and described second pipeline；If it is not, then control described 3rd pipeline and institute
State the 4th pipeline to close.
The invention has the beneficial effects as follows:
The control method of the control system of electric automobile of the present invention, electric automobile and electric automobile air-conditioning system, passes through
Heat exchanger in heat exchanger and the second car it is arranged in parallel in the first car in air channel so that in the process of car external heat exchanger defrost in car
In, in the first car, heat exchanger is as condenser, and in the second car, heat exchanger is divided into two as vaporizer, the coolant discharged from compressor
Road, first via coolant enters car external heat exchanger and carries out defrost, and the second road coolant enters heat exchanger in the first car by the 4th pipeline
In heat, so that the continuous heating being capable of in car during car external heat exchanger defrost, it is ensured that the defrost phase
Between heating effect, improve comfortableness in car.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment one of the electric automobile air-conditioning system of the present invention；
Fig. 2 is the schematic diagram of the embodiment two of the electric automobile air-conditioning system of the present invention；
Fig. 3 is the schematic diagram of the embodiment three of the electric automobile air-conditioning system of the present invention；
Fig. 4 is the schematic diagram of the embodiment four of the electric automobile air-conditioning system of the present invention；
Fig. 5 is the schematic diagram of the embodiment five of the electric automobile air-conditioning system of the present invention；
Fig. 6 is the schematic diagram of the embodiment six of the electric automobile air-conditioning system of the present invention；
Fig. 7 is electric automobile air-conditioning system schematic diagram in cooling mode in Fig. 6；
Fig. 8 is electric automobile air-conditioning system schematic diagram in a heating mode in Fig. 6；
Fig. 9 is electric automobile air-conditioning system schematic diagram under defrost pattern in Fig. 6.
Detailed description of the invention
In order to make technical scheme clearer, below in conjunction with accompanying drawing, the electric automobile air conditioner system to the present invention
The control method of system, electric automobile and electric automobile air-conditioning system is described in further detail.Should be appreciated that this place is retouched
The specific embodiment stated is only in order to explain that the present invention is not intended to limit the present invention.
As it is shown in figure 1, the electric automobile air-conditioning system of the present embodiment one, change including outside compressor 100, cross valve 200, car
In hot device the 300, first car, in heat exchanger the 400, second car, heat exchanger 500, first throttle device 810, check valve 750, first are controlled
Valve processed 710, second control valve the 720, first electronic valve 730, gas-liquid separator 930 and first pipeline the 610, second pipeline
620, the 3rd pipeline 630 and the 4th pipeline 640.Wherein, the first control valve 710 and the second control valve 720 are divided in the first car
The two ends of heat exchanger 400, in first control valve the 710, first car, heat exchanger 400 and the second control valve 720 are sequentially connected in series formation
First branch road.In second car, heat exchanger 500 forms the second branch road, and specifically, in the second car, heat exchanger 500 is connected the first electronic valve
Door 730 forms the second branch road.First electronic valve 730 is arranged on one end of heat exchanger 500 in the second car, for controlling the second car
Interior heat exchanger 500 and the first pipeline 610 and conducting or non-conduction of the second pipeline 620.In the present embodiment, the first electronic valve
730 can be electrodynamic valve or electromagnetic valve.In first car, heat exchanger 400 can be car inner condenser, and in the second car, heat exchanger 500 can
Think vaporizer in car.
First port A of the air vent connection cross valve 200 of compressor 100, the second port B connection the of cross valve 200
One pipeline 610；It is connected between the first pipeline 610 and the second pipeline 620 first branch road and the second branch circuit parallel connection；Second pipeline
First end of 620 connection car external heat exchangers 300, the 4th port D of the second end connection cross valve 200 of car external heat exchanger 300, four
The air entry of the 3rd port C connection compressor 100 of logical valve 200.Gas-liquid separator 930 is connected to the air entry of compressor 100
And between the 3rd port C of described cross valve 200, for ensureing the suction superheat of compressor 100, it is ensured that compressor 100
Properly functioning.In the present embodiment, compressor 100 can be common single-stage compressor 100 machine.
3rd pipeline 630 be connected to the first end of heat exchanger 400 in the first car and car external heat exchanger 300 the first end it
Between, the 4th pipeline 640 is connected in the first car between the second end and second end of car external heat exchanger 300 of heat exchanger 400.First
Throttling arrangement 810 one end connects the 3rd pipeline 630 and the first end of car external heat exchanger 300, described first throttle device 810 another
One end connects the second pipeline 620.Check valve 750 is connected on the 3rd pipeline 630, for controlling the coolant on the 3rd pipeline 630
Flow to.First throttle device 810 can be electric expansion valve or capillary tube.
In one embodiment, in the first car, the first end of heat exchanger 400 can be by the first control valve 710 and first
One end that pipeline 610 connects, in the first car, the second end of heat exchanger 400 can be by the second control valve 720 and the second pipeline
620 one end connected.
Now, when car external heat exchanger 300 needs defrost, the first port A of cross valve 200 and the 4th port D connection, four
Second port B and the 3rd port C connection of logical valve 200.By controlling the first control valve 710 and the second control valve 720 so that the
Three pipelines 630 and described 4th pipeline 640 turn on, and the first branch road and the first pipeline 610 and the second pipeline 620 disconnect.By control
Make the conducting of the first electronic valve 730 so that in the second car, heat exchanger 500 connects with the first pipeline 610 and the second pipeline 620.
Now, the coolant discharged from compressor 100 is divided into two-way, and wherein, first via coolant enters in car external heat exchanger 300 and changes outside car
Hot device 300 carries out defrost, and the second road coolant is entered in the first car by the 4th pipeline 640 and heats in heat exchanger 400, it is ensured that
Heating effect in car during defrost.Afterwards, the second road coolant returns to the first of car external heat exchanger 300 through the 3rd pipeline 630
End, after mixing with first via coolant, in first throttle device the 810, second car, heat exchanger 500 returns to the air-breathing of compressor 100
Mouthful.
In another embodiment, in the first car the first end of heat exchanger 400 can also be by the second control valve 720 with
One end that second pipeline 620 connects, in the first car, the second end of heat exchanger 400 can also be by the first control valve 710 and the
One end that one pipeline 610 connects.Its defrost process can be found in described above.
When this air conditioning system needs refrigeration, the first port A of cross valve 200 and the 4th port D connection, the second port B
Connect with the 3rd port C.By controlling the conducting of the first electronic valve 730 so that in the second car, heat exchanger 500 connects the first pipe
Road 610 and the second pipeline 620.Owing to the coolant pressure between first throttle device 810 and car external heat exchanger 300 is higher than the first car
The pressure of interior heat exchanger 400, check valve 750 is in nonconducting state, and the 3rd pipeline 630 is in non-conduction, heat exchange in the first car
Device 400 and the first pipeline 610 and the second pipeline 620 are also at nonconducting state.By controlling the first control valve 710 and the second control
Valve 720 processed so that the 4th pipeline is also at nonconducting state.Now, the coolant discharged from compressor 100 flows through outdoor successively and changes
Return to the air entry of compressor 100 in hot device, first throttle device the 810, second car after heat exchanger 500, complete kind of refrigeration cycle.
When this air conditioning system needs to heat, the first port A controlling cross valve 200 connects the second port B, the 3rd port
C connects the 4th port D.Simultaneously by controlling the first control valve 710 and the second control valve 720 so that the 3rd pipeline 630 and the 4th
Pipeline 640 is in nonconducting state, and in the first car, heat exchanger 400 connects the first pipeline 610 and the second pipeline 620.By controlling
First electronic valve 730 is in nonconducting state so that heat exchanger 500 and the first pipeline 610 and the second pipeline 620 in the second car
It is in nonconducting state.Now, the coolant discharged from compressor 100 flows through heat exchanger 400, first throttle device in the first car
810 and car external heat exchanger 300 after return to the air entry of compressor 100, thus complete to heat circulation.
In one embodiment, the first control valve 710 can be the first three-way valve, and the second control valve 720 can be second
Three-way valve.First valve port a1 of the first three-way valve connects the first pipeline 610, and the second valve port b1 of the first three-way valve is sequentially connected with
Heat exchanger 400 and the first valve port a2 of the second three-way valve in one car, the second valve port b2 of the second three-way valve connects the second pipeline
620；3rd valve port c1 of the first three-way valve is connected to the first end of car external heat exchanger 300 by the 3rd pipeline 630；Second threeway
3rd valve port c2 of valve is connected to the second end of car external heat exchanger 300 by the 4th pipeline 640.
When the first valve port a1 of the first three-way valve connects its second valve port b1, and the first valve port a2 connection of the second three-way valve
During its second valve port b2, in the first car, heat exchanger 400 connects with the first pipeline 610 and the second pipeline 620.When the first three-way valve
When second valve port b1 connects with its 3rd valve port c1, the 3rd pipeline 630 turns on；When the second three-way valve the first valve port a2 with its
During three valve port c2 conductings, the 4th pipeline 640 turns on.Therefore, it can the one or three arranged by heat exchanger 400 two ends in the first car
Logical valve and the second three-way valve control the 3rd pipeline 630 and the on and off of the 4th pipeline 640, it is also possible to change in controlling the first car
Hot device 400 and the first pipeline 610 and on and off of the second pipeline 620, thus realize air conditioning system in each operational mode
Under switching.
As in figure 2 it is shown, the electric automobile air-conditioning system of embodiments of the invention two and the air conditioning system of above-described embodiment one
Basically identical, difference is, the air conditioning system in the present embodiment also includes that the second throttling arrangement 820, the 3rd pipeline 630 lead to
Cross the second throttling arrangement 820 to be connected to the first end of car external heat exchanger 300, the i.e. end at car external heat exchanger 300 and set up
One the second throttling arrangement 820, the second throttling arrangement 820 can be electric expansion valve or capillary tube.
During the defrost of this air conditioning system, the coolant discharged from compressor 100 is divided into two-way, and first via coolant enters
Carrying out defrost in car external heat exchanger 300, the second road coolant enters in the first car and heats in heat exchanger 400, afterwards, and the first via
Coolant mixes with first via coolant after the second throttling arrangement 820, and the coolant of mixing is in first throttle device 810 and the second car
Heat exchanger 500 returns to the air entry of compressor 100.By arranging the second throttling arrangement 820, distribution first via coolant can be regulated
With the flow of the second road coolant, thus improve air conditioning system reliability of operation and heat exchange property further.This air conditioning system
Heating or in process of refrigerastion, similar to the air conditioning system in embodiment one, here is omitted.
As it is shown on figure 3, the air conditioning system of this enforcement three is compared to the air conditioning system of embodiment one, difference, this enforcement
Air conditioning system in example also includes fluid reservoir 910, the first end of the first end connection car external heat exchanger 300 of fluid reservoir 910, liquid storage
Second end connection the 3rd pipeline 630 of tank 910, the three-terminal link first throttle device 810 of fluid reservoir 910.
During the defrost of this air conditioning system, the coolant discharged from compressor 100 is divided into two-way, and first via coolant enters
Carrying out defrost in car external heat exchanger 300, the second road coolant enters in the first car and heats in heat exchanger 400, and afterwards, two-way is cold
Matchmaker enters in fluid reservoir 910 and mixes, and the coolant of mixing heat exchanger 500 in first throttle device 810 and the second car returns to
The air entry of compressor 100.By arranging fluid reservoir 910, can regulate and enter the coolant of heat exchanger 500 in the second car
Amount, thus improve air conditioning system reliability of operation and heat exchange property further.Heating or in process of refrigerastion of this air conditioning system,
Similar to the air conditioning system in embodiment one, here is omitted.In the present embodiment, compressor 100 can be common single-stage
Compressor.
As shown in Figure 4, the air conditioning system of the present embodiment four is compared to the air conditioning system in embodiment two, and its difference exists
In, the air conditioning system of this embodiment also includes fluid reservoir 910, and the first end of fluid reservoir 910 is connected by the second throttling arrangement 820
First end of car external heat exchanger 300, the second end connection the 3rd pipeline 630 of fluid reservoir 910, the 3rd end connection of fluid reservoir 910
First throttle device 810.
During the defrost of this air conditioning system, the coolant discharged from compressor 100 is divided into two-way, and first via coolant enters
Carrying out defrost in car external heat exchanger 300, the second road coolant enters in the first car and heats in heat exchanger 400, afterwards, and the first via
Coolant enters in fluid reservoir 910 after the second throttling arrangement 820 and mixes with first via coolant, and the coolant of mixing fills through first throttle
Put 810 and second heat exchangers 500 in car and return to the air entry of compressor 100.By arranging the second throttling arrangement 820, can adjust
Joint distribution first via coolant and the flow of the second road coolant；By arranging fluid reservoir 910, can regulate in entrance the second car
The coolant quantity of heat exchanger 500, thus improve air conditioning system reliability of operation and heat exchange property further.The system of this air conditioning system
In heat or process of refrigerastion, similar to the air conditioning system in embodiment one, here is omitted.In the present embodiment, compressor 100 can
Think common single-stage compressor.
As shown in Figure 6, the air conditioning system of the present embodiment six compared to the air conditioning system of embodiment one, its difference, this
Embodiment also includes the second throttling arrangement 820, flash vessel 920 and the second electronic valve 740；Wherein, the of flash vessel 920
One end connects the first end and the 3rd pipeline 630 of described car external heat exchanger 300 by the second throttling arrangement 820, flash vessel 920
Second end connects first throttle device 810, the gas supplementing opening of the 3rd end connection compressor 100 of flash vessel 920.Second electronic valve
Between 740 the 3rd end and the gas supplementing openings of described compressor 100 being connected to described flash vessel 920, the second electronic valve 740 is used for
Control whether air conditioning system carries out QI invigorating operation.When needs carry out QI invigorating operation, control the second electronic valve 740 and turn on, when
When being made without QI invigorating operation, control the second electronic valve 740 and close.In the present embodiment, the second electronic valve 740 can be
Electromagnetic valve or electrodynamic valve.Compressor 100 can be the quasi-double-stage compressor of vortex, birotor twin-stage Gas-supplying enthalpy-increasing compressor or two
The combination of single-stage compressor.
As it is shown in fig. 7, when this air conditioning system needs refrigeration, the first port A of cross valve 200 and the 4th port D connection,
Second port B and the 3rd port C connection, by controlling the first electronic valve 730 and conducting of the second electronic valve 740 so that
In second car, heat exchanger 500 connects the first pipeline 610 and the second pipeline 620.Due to first throttle device 810 and car external heat exchanger
Coolant pressure between 300 is higher than the pressure of heat exchanger 400 in the first car, and check valve 750 is in nonconducting state, thus, the
Three pipelines 630 and the 4th pipeline 640 are in non-conduction, and heat exchanger 400 and the first pipeline 610 and the second pipeline in the first car
620 are also at nonconducting state.Now, the coolant discharged from compressor 100 flows through outdoor heat exchanger, first throttle device successively
810 enter in flash vessel 920, and coolant carries out gas-liquid separation in flash vessel 920, and wherein, gaseous coolant passes through the second electronic valve
Door 740 returns to the gas supplementing opening of compressor 100, and liquid refrigerants is by entering in heat exchanger 500 in the second throttling arrangement 820 and the second car
Refrigeration in driving, last liquid refrigerants returns to the air entry of compressor 100 by cross valve 200, completes kind of refrigeration cycle.
As shown in Figure 8, when this air conditioning system needs to heat, the first port A controlling cross valve 200 connects the second port
B, the 3rd port C connect the 4th port D, lead with its second valve port b1 by controlling the first valve port a1 of the first three-way valve simultaneously
Logical, the first valve port a2 of the second three-way valve and its second valve port b2 turns on so that the 3rd pipeline 630 and the 4th pipeline 640 are in
Nonconducting state, in the first car, heat exchanger 400 connects the first pipeline 610 and the second pipeline 620.By controlling the first electronic valve
730 are in nonconducting state so that in the second car, heat exchanger 500 and the first pipeline 610 and the second pipeline 620 are in non-conduction shape
State, meanwhile, controls the second electronic valve 740 in the conduction state, to realize the QI invigorating of compressor.Now, from compressor 100 row
The coolant gone out flows through in the first car and enters in flash vessel 920 after heat exchanger 400, first throttle device 810, and coolant is at flash vessel
Gas-liquid separation is carried out so that liquid refrigerants returns to compressor 100 by the second throttling arrangement 820 and car external heat exchanger 300 in 920
Air entry, thus complete to heat circulation.Gaseous coolant returns to the gas supplementing opening of compressor 100 by the second electronic valve 740, real
The QI invigorating of existing compressor 100.
As it is shown in figure 9, when car external heat exchanger 300 needs defrost, the first port A of cross valve 200 and the 4th port D is even
Logical, the second port B of cross valve 200 and the 3rd port C connection；By control the second valve port b1 of the first three-way valve with its 3rd
Valve port c1 connects, and the first valve port a2 of the second three-way valve connects with its 3rd valve port c2 so that the 3rd pipeline 630 and the 4th pipeline
640 conductings, in the first car, heat exchanger 400 disconnects with the first pipeline 610 and the second pipeline 620.By controlling the first electronic valve
The conducting of 730 so that in the second car, heat exchanger 500 connects with the first pipeline 610 and the second pipeline 620, meanwhile, controls the second electricity
Sub-valve 740 turns on.Now, the coolant discharged from compressor 100 is divided into two-way, and wherein, first via coolant enters the outer heat exchange of car
Car external heat exchanger 300 carries out in device 300 defrost, and the second road coolant is by entering in heat exchanger 400 in the 4th pipeline 640 first car
Row heats, it is ensured that the heating effect in car during defrost.Afterwards, the second road coolant returns to the outer heat exchange of car through the 3rd pipeline 630
First end of device 300, enters in flash vessel 920 after mixing with first via coolant after the second throttling arrangement 820, and coolant is in flash distillation
Device 920 carries out gas-liquid separation.Wherein, from the liquid refrigerants of flash vessel 920 discharge in first throttle device the 810, second car
Heat exchanger 500 returns to the air entry of compressor 100.The gaseous coolant discharged from flash vessel 920 returns to through the second electronic valve 740
The air vent of compressor 100, it is achieved the QI invigorating of compressor 100.
Additionally, in above-mentioned refrigeration, heat or during defrost, when without carrying out Gas-supplying enthalpy-increasing, only need to be by the second electronics
Valve 740 is closed and can be realized.In the present embodiment, by using flash vessel 920 can realize the function of Gas-supplying enthalpy-increasing, thus can
To improve this air conditioning system heating capacity at low ambient temperatures, it is also possible to reduce the delivery temperature of compressor 100, such that it is able to enter
One step improves air conditioning system reliability of operation.
As it is shown in figure 5, the air conditioning system of the present embodiment five includes compressor 100, cross valve 200, car external heat exchanger
300, heat exchanger 500 in heat exchanger the 400, second car in the first car, first throttle device the 810, second throttling arrangement 820, unidirectional
Valve the 750, first control valve the 710, second control valve the 720, first electronic valve 730, gas-liquid separator 930 and the first pipeline
610, the second pipeline the 620, the 3rd pipeline 630 and the 4th pipeline 640.
Wherein, the first control valve 710 and the second control valve 720 are divided into the two ends of heat exchanger 400 in the first car, the first control
In valve the 710, first car processed, heat exchanger 400 and the second control valve 720 are sequentially connected in series formation the first branch road.Heat exchanger in second car
500 form the second branch roads, and specifically, in the second car, heat exchanger 500 first electronic valve 730 of connecting forms the second branch road.First
Electronic valve 730 is arranged on one end of heat exchanger 500 in the second car, heat exchanger 500 and the first pipeline in controlling the second car
610 and second conducting or non-conduction of pipeline 620.In the present embodiment, the first electronic valve 730 can be electrodynamic valve or electromagnetism
Valve.In first car, heat exchanger 400 can be car inner condenser, and in the second car, heat exchanger 500 can be vaporizer in car.
First port A of the air vent connection cross valve 200 of compressor 100, the second port B connection the of cross valve 200
One pipeline 610；It is connected between the first pipeline 610 and the second pipeline 620 first branch road and the second branch circuit parallel connection；Second pipeline
First end of 620 connection car external heat exchangers 300, the 4th port D of the second end connection cross valve 200 of car external heat exchanger 300, four
The air entry of the 3rd port C connection compressor 100 of logical valve 200.Gas-liquid separator 930 is connected to the air entry of compressor 100
And between the 3rd port C of described cross valve 200, for ensureing the suction superheat of compressor 100, it is ensured that compressor 100
Properly functioning.In the present embodiment, compressor 100 can be common single-stage compressor 100 machine.
3rd pipeline 630 be connected to the first end of heat exchanger 400 in the first car and car external heat exchanger 300 the first end it
Between, the 4th pipeline 640 is connected in the first car between the second end and second end of car external heat exchanger 300 of heat exchanger 400.First
Throttling arrangement 810 is connected on described 3rd pipeline 630, and first throttle device 810 connects the second pipeline 620；Second throttling dress
Putting the first end of one end connection car external heat exchanger 300 of 820, the other end of the second throttling arrangement 820 connects the second pipeline 620.
During the defrost of this air conditioning system, the coolant discharged from compressor 100 is divided into two-way, and first via coolant enters
Carrying out defrost in car external heat exchanger 300, first via coolant is in the second throttling arrangement 820 enters the second pipeline 620 afterwards, and second
Road coolant enters in the first car and heats in heat exchanger 400, and afterwards, the second road coolant is through the throttling of first throttle device 810
In rear entrance the second pipeline 620, two-way coolant mixes in the second pipeline 620, and mixed coolant changes in the second car
Hot device 500 returns to the air entry of compressor 100.By arranging the second throttling arrangement 820, can regulate distribution first via coolant and
The flow of the second road coolant, thus improve air conditioning system reliability of operation and heat exchange property further.The system of this air conditioning system
In heat or process of refrigerastion, similar to the air conditioning system in embodiment one, here is omitted.In the present embodiment, compressor 100 can
Think common single-stage compressor.
One embodiment of the invention additionally provides a kind of electric automobile, and it includes the electric automobile air conditioner of any of the above-described embodiment
System.
Additionally, one embodiment of the invention additionally provides the control method of a kind of electric automobile air-conditioning system, for above-mentioned
The electric automobile air-conditioning system of one embodiment, including:
Judge car external heat exchanger 300 the need of defrost, the most then control the first port A of cross valve 200 with its 4th
Port D connects, and the second port B of cross valve 200 connects with its 3rd port C；Second branch road and the first pipeline 610 and the second pipe
Road 620 connects；By the first control valve 710 with the second control valve 720 controls the 3rd pipeline 630 and the 4th pipeline 640 turns on,
One branch road and the first pipeline 610 and the second pipeline 620 disconnect；If it is not, then control the 3rd pipeline 630 and the 4th pipeline 640 are closed,
Described air conditioning system heats or freezes.
Specifically, when judging that car external heat exchanger 300 needs defrost, control cross valve 200 the first port A with its 4th
Port D connects, and the second port B of cross valve 200 connects with its 3rd port C；Meanwhile, the second valve port of the first three-way valve is controlled
B1 connects with its 3rd valve port c1, and the first valve port a2 of the second three-way valve connects with its 3rd valve port c2 so that the 3rd pipeline 630
Turning on the 4th pipeline 640, in the first car, heat exchanger 400 disconnects with the first pipeline 610 and the second pipeline 620.Further, same to time control
Make the conducting of the first electronic valve 730 so that in the second car, heat exchanger 500 connects with the first pipeline 610 and the second pipeline 620.
When this air conditioning system needs to carry out QI invigorating, control the second electronic valve 740 simultaneously and turn on.
When judging that car external heat exchanger 300 needs to freeze, control the first port A and its 4th end of cross valve 200
Mouth D connection, the second port B connects with its 3rd port C, controls the first electronic valve 730 simultaneously and turns on so that changes in the second car
Hot device 500 connects the first pipeline 610 and the second pipeline 620.Due between first throttle device 810 and car external heat exchanger 300
Coolant pressure is higher than the pressure of heat exchanger 400 in the first car, and check valve 750 is in nonconducting state, thus, the 3rd pipeline 630
It is in non-conduction with the 4th pipeline 640, and in the first car, heat exchanger 400 is also at non-with the first pipeline 610 and the second pipeline 620
Conducting state.When this air conditioning system needs to carry out QI invigorating, control the second electronic valve 740 simultaneously and turn on.
When judging that car external heat exchanger 300 needs to heat, the first port A controlling cross valve 200 connects the second end
Mouth B, the 3rd port C connect the 4th port D, control the first valve port a1 and its second valve port b1 conducting of the first three-way valve simultaneously,
First valve port a2 of the second three-way valve and its second valve port b2 turns on so that the 3rd pipeline 630 and the 4th pipeline 640 are in non-leading
Logical state, in the first car, heat exchanger 400 connects the first pipeline 610 and the second pipeline 620.By controlling the first electronic valve 730
It is in nonconducting state so that in the second car, heat exchanger 500 and the first pipeline 610 and the second pipeline 620 are in nonconducting state.
When this air conditioning system needs to carry out QI invigorating, control the second electronic valve 740 in the conduction state, to realize compressor simultaneously
The QI invigorating of 100.
Wherein, the control method of the electric automobile air-conditioning system of the present embodiment and the air conditioning for automobiles in each embodiment above-mentioned
The operation principle of system is identical, and it specifically performs process and can be found in described above, and here is omitted.
The control method of the control system of electric automobile of the present invention, electric automobile and electric automobile air-conditioning system, passes through
Heat exchanger in heat exchanger and the second car it is arranged in parallel in the first car in air channel so that in the process of car external heat exchanger defrost in car
In, in the first car, heat exchanger is as condenser, and in the second car, heat exchanger is divided into two as vaporizer, the coolant discharged from compressor
Road, first via coolant enters car external heat exchanger and carries out defrost, and the second road coolant enters heat exchanger in the first car by the 4th pipeline
In heat, so that the continuous heating being capable of in car during car external heat exchanger defrost, it is ensured that the defrost phase
Between heating effect, improve the heat exchange property of this air conditioning system.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (16)
1. an electric automobile air-conditioning system, it is characterised in that include compressor (100), cross valve (200), car external heat exchanger
(300), heat exchanger (500) in heat exchanger (400), the second car in the first car, the first pipeline (610), the second pipeline (620),
Three pipelines (630) and the 4th pipeline (640) and the first control valve (710) and the second control valve (720)；Described first control valve
(710), heat exchanger (400) in described first car, described second control valve (720) be sequentially connected in series formation the first branch road, described the
In two cars, heat exchanger (500) forms the second branch road；
The air vent of described compressor (100) connects the first port of described cross valve (200), the of described cross valve (200)
Two-port netwerk connects described first pipeline (610)；It is connected to described first pipe described first branch road and described second branch circuit parallel connection
Between road (610) and described second pipeline (620), described second pipeline (620) connects the first of described car external heat exchanger (300)
End, the second end of described car external heat exchanger (300) connects the 4th port of described cross valve (200), described cross valve (200)
3rd port connects the air entry of described compressor (100)；
Described 3rd pipeline (630) is connected to the first end of heat exchanger (400) in described first car and described car external heat exchanger
(300), between the first end, described 4th pipeline (640) is connected to the second end and the institute of heat exchanger (400) in described first car
State between the second end of car external heat exchanger (300)；
When outer heat exchange (300) device of described car needs defrost, the first port of described cross valve (200) and the connection of the 4th port,
Second port and the connection of the 3rd port, described second branch road connects with described first pipeline (610) and described second pipeline (620)
Logical；Described first control valve (710) and described second control valve (720) control described 3rd pipeline (630) and described 4th pipe
Road (640) turns on, and described first branch road disconnects with described first pipeline and described second pipeline；When described car external heat exchanger
(300), when needing freeze or heat, described 3rd pipeline is controlled by described first control valve and described second control valve
Close with described 4th pipeline.
Electric automobile air-conditioning system the most according to claim 1, it is characterised in that described first control valve (710) is
One three-way valve, described second control valve (720) is the second three-way valve；
First valve port of described first three-way valve connects described first pipeline (610), and the second valve port of described first three-way valve depends on
Heat exchanger (400) and the first valve port of described second three-way valve, the second of described second three-way valve in described first car of secondary connection
Valve port connects described second pipeline (620)；3rd valve port of described first three-way valve is connected to by described 3rd pipeline (630)
First end of described car external heat exchanger (300)；3rd valve port of described second three-way valve is connected by described 4th pipeline (640)
The second end to described car external heat exchanger (300).
Electric automobile air-conditioning system the most according to claim 1, it is characterised in that be additionally provided with position on described second branch road
First electronic valve (730) of one end of heat exchanger (500) in described second car.
Electric automobile air-conditioning system the most according to claim 1, it is characterised in that also include being arranged on described 3rd pipeline
(630) check valve (740) on.
Electric automobile air-conditioning system the most according to claim 1, it is characterised in that also include first throttle device (810),
Described first throttle device (810) one end connects described 3rd pipeline (630) and the first end of described car external heat exchanger (300),
The other end of described first throttle device (810) connects described second pipeline (620).
Electric automobile air-conditioning system the most according to claim 5, it is characterised in that also include the second throttling arrangement (820),
Described 3rd pipeline (630) is connected to the first end of described car external heat exchanger (300) by described second throttling arrangement (820).
Electric automobile air-conditioning system the most according to claim 6, it is characterised in that also include fluid reservoir (910), described storage
First end of flow container (910) connects the first end of described car external heat exchanger (300), institute by described second throttling arrangement (820)
The second end stating fluid reservoir (910) connects described 3rd pipeline (630), the 3rd end connection described the of described fluid reservoir (910)
One throttling arrangement (810).
Electric automobile air-conditioning system the most according to claim 5, it is characterised in that also include fluid reservoir (910), described storage
First end of flow container (910) connects the first end of described car external heat exchanger (300), the second end connection of described fluid reservoir (910)
Described 3rd pipeline (630), first throttle device (810) described in the three-terminal link of described fluid reservoir (910).
Electric automobile air-conditioning system the most according to claim 5, it is characterised in that also include the second throttling arrangement (820)
With flash vessel (920)；First end of described flash vessel (920) is connected to outside described car by described second throttling arrangement (820)
First end of heat exchanger (300) and described 3rd pipeline (630), the second end of described flash vessel (920) connects described first segment
Stream device (810), the 3rd end of described flash vessel (920) connects the gas supplementing opening of described compressor (100).
Electric automobile air-conditioning system the most according to claim 9, it is characterised in that also include the second electronic valve
(740)；Described second electronic valve (740) is connected to the 3rd end and the benefit of described compressor (100) of described flash vessel (920)
Between QI KOU.
11. electric automobile air-conditioning systems according to claim 9, it is characterised in that described compressor (100) is that vortex is accurate
Double-stage compressor, birotor twin-stage Gas-supplying enthalpy-increasing compressor or the combination of two single-stage compressors.
12. electric automobile air-conditioning systems according to claim 1, it is characterised in that also include first throttle device (810)
With the second throttling arrangement (820), described first throttle device (810) is connected on described 3rd pipeline (630), described first segment
Stream device (810) connects described second pipeline (620)；One end of described second throttling arrangement (820) connects the outer heat exchange of described car
First end of device (300), the other end of described second throttling arrangement (820) connects described second pipeline (620).
13. according to the electric automobile air-conditioning system described in claim 1-12, it is characterised in that also include gas-liquid separator
(930), described gas-liquid separator (930) is connected to the air entry of described compressor (100) and the 3rd of described cross valve (200) the
Between port.
14. according to the electric automobile air-conditioning system described in claim 1-12, it is characterised in that in described first car, heat exchanger is
Condenser, in described second car, heat exchanger is vaporizer.
15. 1 kinds of electric automobiles, it is characterised in that include the electric automobile air-conditioning system described in any one of claim 1-14.
The control method of 16. 1 kinds of electric automobile air-conditioning systems, it is characterised in that for described in any one of claim 1-14
Electric automobile air-conditioning system, including:
Judge that described car external heat exchanger the need of defrost, the most then controls the first port and the 4th port of described cross valve
Connection, the second port of described cross valve and the connection of the 3rd port；Described second branch road and described first pipeline and described second
Pipeline connection；Led by described first control valve and described second control valve described 3rd pipeline of control and described 4th pipeline
Logical, described first branch road disconnects with described first pipeline and described second pipeline；If it is not, then control described 3rd pipeline and described
4th pipeline is closed.
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| CN108068577A (en) * | 2017-12-06 | 2018-05-25 | 珠海格力电器股份有限公司 | A kind of heat pump air conditioning system, electric vehicle and its control method |
| CN108422829A (en) * | 2018-03-20 | 2018-08-21 | 上海加冷松芝汽车空调股份有限公司 | A kind of integral new-energy passenger integrated thermal management system being suitable for flammable working medium |
| CN108515825A (en) * | 2018-03-22 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | A kind of automotive air-conditioning system and its control method of Two-stage Compression |
| CN111688443A (en) * | 2020-06-15 | 2020-09-22 | 珠海格力电器股份有限公司 | Automobile air conditioning system and control method |
| CN112339525A (en) * | 2020-11-10 | 2021-02-09 | 中国科学院广州能源研究所 | Electric automobile synthesizes thermal management system |
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