CN107356004A - Heat pump type air conditioning system and electric automobile - Google Patents
Heat pump type air conditioning system and electric automobile Download PDFInfo
- Publication number
- CN107356004A CN107356004A CN201610309259.3A CN201610309259A CN107356004A CN 107356004 A CN107356004 A CN 107356004A CN 201610309259 A CN201610309259 A CN 201610309259A CN 107356004 A CN107356004 A CN 107356004A
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- branch road
- valve
- heat pump
- outlet
- air conditioning
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- B60H1/00321—Heat exchangers for air-conditioning devices
-
- 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
-
- 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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00592—Add-on devices, e.g. heat/cooling boxes, compartment dividers, upgrade sets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- B60H2001/00114—Heating or cooling details
- B60H2001/00128—Electric heaters
-
- 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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/00614—Cooling of electronic units in air stream
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of heat pump type air conditioning system and electric automobile.The heat pump type air conditioning system includes：Indoor condenser, indoor evaporator, compressor and outdoor heat exchanger, the outlet of the compressor connects with the entrance of the indoor condenser, connected via first throttle branch road or the first through-flow branch road with the entrance of the outdoor heat exchanger egress selection of the indoor condenser, connect with the first end of the tie point of selective on or off via the second throttling branch road or the second through-flow branch road and connected with the first end of the second branch road of selective on or off the egress selection of the outdoor heat exchanger, second end of the tie point connects with the entrance of the compressor, second end of second branch road connects with the entrance of the indoor evaporator, the outlet of the indoor evaporator connects with the entrance of the compressor.Heating efficiency is improved thus, it is possible to reach, meets defrosting-defogging laws and regulations requirement, be easily installed and other effects.
Description
Technical field
The present invention relates to electric automobile field, in particular it relates to a kind of heat pump type air conditioning system and electric automobile.
Background technology
Electric automobile does not have the engine exhaust heat that orthodox car is used for heating, can not provide heating reservoir.Cause
This, the air-conditioning system of electric automobile itself must have the function of heating, i.e., using heat pump type air conditioner system
And/or electrical heating heat supply.
It is empty that Publication No. CN102788397A application for a patent for invention discloses a kind of electric automobile heat-pump
Adjusting system.Although the heat pump type air conditioning system can use in all kinds of electric automobiles, the system uses
Two outdoor heat exchangers (an outdoor condenser and an outdoor evaporator), cause front-end module
Windage is larger, and system is more complicated, influences heating effect.
The content of the invention
It is an object of the invention to provide a kind of heat pump type air conditioning system and electric automobile, to solve without more than engine
The pure electric vehicle or hybrid electric vehicle of heat circulating system use the automobile heat pump air-conditioning system of electric-only mode
Heating efficiency is low, can not meet defrosting-defogging laws and regulations requirement, installs the problems such as complicated.
To achieve these goals, according to the first aspect of the invention, there is provided a kind of heat pump type air conditioning system,
The system includes：Indoor condenser, indoor evaporator, compressor and outdoor heat exchanger, the compression
The outlet of machine connects with the entrance of the indoor condenser, passes through the egress selection of the indoor condenser
Connected by first throttle branch road or the first through-flow branch road with the entrance of the outdoor heat exchanger, the outdoor is changed
Turn on or cut with selectivity via the second throttling branch road or the second through-flow branch road the egress selection of hot device
The first end of tie point only is connected and connected with the first end of the second branch road of selective on or off
Logical, the second end of the tie point connects with the entrance of the compressor, and the second of second branch road
End connects with the entrance of the indoor evaporator, the outlet of the indoor evaporator and entering for the compressor
Mouth connection.
Alternatively, first switch valve is provided with the tie point.
Alternatively, it is provided with second switch valve on second branch road.
Alternatively, the heat pump type air conditioning system also includes：First triple valve, the outdoor heat exchanger go out
Mouth optionally connects via the entrance of the second throttling branch road or the second through-flow branch road and first triple valve
Logical, the first outlet of first triple valve connects with the first end of the tie point, and the described 1st
The second outlet of port valve connects with the first end of second branch road.
Alternatively, the outlet of the indoor evaporator connects via check valve with the entrance of the compressor.
Alternatively, the 3rd switch valve is provided with the described first through-flow branch road, on the first throttle branch road
It is provided with the first expansion valve.
Alternatively, the heat pump type air conditioning system also includes the first expansion switch valve, the first expansion switch valve
Entrance and the indoor condenser outlet, the outlet and the outdoor of the first expansion switch valve
The entrance connection of heat exchanger, the first throttle branch road are the throttling runner of the described first expansion switch valve,
The first through-flow branch road is the through-flow runner of the described first expansion switch valve.
Alternatively, the 4th switch valve is provided with the described second through-flow branch road, described second throttles on branch road
It is provided with the second expansion valve.
Alternatively, the heat pump type air conditioning system is applied to electric automobile, and the heat pump type air conditioning system is also
Including：Plate type heat exchanger, wherein, the plate type heat exchanger is arranged in the described second through-flow branch road, and
And the plate type heat exchanger is arranged in the electromotor cooling system of the electric automobile simultaneously.
Alternatively, the outlet of the refrigerant inlet of the plate type heat exchanger and the outdoor heat exchanger,
The refrigerant outlet of the plate type heat exchanger connects with the entrance of the 4th switch valve.
Alternatively, the electromotor cooling system includes connecting with the plate type heat exchanger to form the electricity in loop
Mechanical, electrical machine radiator and water pump.
Alternatively, the heat pump type air conditioning system also includes the second expansion switch valve, the second expansion switch valve
Entrance and the outdoor heat exchanger outlet, the outlet and the selection of the second expansion switch valve
Property on or off tie point first end connection and with the second of the selective on or off
The first end connection of branch road, the second throttling branch road are the throttling runner of the described second expansion switch valve,
The second through-flow branch road is the through-flow runner of the described second expansion switch valve.
Alternatively, the heat pump type air conditioning system is applied to electric automobile, and the heat pump type air conditioning system is also
Including：Plate type heat exchanger, wherein, the refrigerant inlet of the plate type heat exchanger expands with described second
Close the outlet of valve, the refrigerant outlet of the plate type heat exchanger and the selective on or off
The first end of tie point is connected and connected with the first end of the second branch road of the selective on or off
It is logical, and the plate type heat exchanger is arranged in the electromotor cooling system of the electric automobile simultaneously.
Alternatively, it is cold to include coolant main line, the first coolant branch road and second for the electromotor cooling system
But liquid branch road, the first end on the coolant main line optionally with the first coolant branch road first
The connection of the first end of end or the second coolant branch road, the second end of the first coolant branch road and institute
The second end for stating the second coolant branch road connects with second end on the coolant main line, wherein, described
Motor, motor radiator and water pump are in series with coolant main line, is gone here and there on the first coolant branch road
It is associated with the plate type heat exchanger.
Alternatively, the heat pump type air conditioning system also includes gas-liquid separator, the outlet of the indoor evaporator
Connected with the entrance of the gas-liquid separator, the second end and the gas-liquid separator of the tie point
Entrance connects, and the outlet of the gas-liquid separator connects with the entrance of the compressor.
Alternatively, the heat pump type air conditioning system also includes ptc heater, and the ptc heater is used for pair
The wind for flowing through the indoor condenser is heated.
Alternatively, the ptc heater is arranged in the windward side or leeward side of the indoor condenser.
According to the second aspect of the invention, there is provided a kind of electric automobile, including the first party according to the present invention
The heat pump type air conditioning system that face provides.
Heat pump type air conditioning system provided by the invention, can be real in the case where not changing refrigerant circulation direction
Existing automotive air-conditioning system refrigeration and heating, outdoor heat exchanger defrosting function, and can meet that refrigeration is adopted simultaneously
Warm demand.During outdoor heat exchanger bypass defrosting, remain to meet in-car heating demand.In addition,
Because the heat pump type air conditioning system of the present invention is only with an outdoor heat exchanger, therefore automotive front end can be reduced
The windage of module, solve no engine exhaust heat circulatory system pure electric vehicle or hybrid electric vehicle using pure
The automobile heat pump air-conditioning system heating efficiency of electric model is low, can not meet defrosting-defogging laws and regulations requirement, peace
The problems such as complicated is filled, reaching reduces energy consumption, simplied system structure, the effect for facilitating pipeline to arrange.This hair
The heat pump type air conditioning system of bright offer has the characteristics of simple in construction, therefore is easy to produce in batches.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing be for providing a further understanding of the present invention, and a part for constitution instruction, with
Following embodiment is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Figure 1A is the structural representation according to the heat pump type air conditioning system of one embodiment of the present invention；
Figure 1B is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 2 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 3 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 4 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 5 A are the structural representations according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 5 B are the structural representations according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 6 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 7 is the overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Fig. 8 be along the cross-sectional view crossed by Fig. 7 center lines AB-AB, wherein, the first valve port
Open mode is in the second valve port；
Fig. 9 is the facing structure along a visual angle for the expansion switch valve that the preferred embodiment for the present invention provides
Schematic diagram；
Figure 10 be along the cross-sectional view crossed by Fig. 7 center lines AB-AB, wherein, the first valve port
In open mode, the second valve port is in closure state；
Figure 11 be along the cross-sectional view crossed by Fig. 7 center lines AB-AB, wherein, the first valve port
In closure state, the second valve port is in open mode；
Figure 12 is the facing along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides
Structural representation；
Figure 13 be along the cross-sectional view crossed by Figure 12 center lines AC-AC, wherein, the first valve
Mouth is in open mode, and the second valve port is in closure state；
Figure 14 is the first internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides,
Wherein, the first valve port and the second valve port are in open mode；
Figure 15 is the partial enlarged drawing in A portions in Figure 14；
Figure 16 is the second internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides,
Wherein, the first valve port is in open mode, and the second valve port is closed；
Figure 17 is the 3rd internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides,
Wherein, the first valve port is closed, and the second valve port is in open mode.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Embodiment described herein is merely to illustrate and explain the present invention, and is not limited to this hair
It is bright.
In the present invention, in the case where not making opposite explanation, the noun of locality that uses as " it is upper and lower, left,
It is right " be typically for the page of accompanying drawing, " upstream, downstream " be relative to medium,
Such as, it is downstream towards the flow direction of refrigerant specifically for the flow direction of refrigerant, the back of the body
Flow direction from refrigerant is upstream, " inside and outside " refer to corresponding component profile it is interior with it is outer.
In addition, in the present invention, electric automobile can include pure electric automobile, hybrid vehicle, combustion
Expect battery car.
Figure 1A and Figure 1B is shown according to the structure of the heat pump type air conditioning system of one embodiment of the present invention
It is intended to.As shown in Figure 1A, the system can include：HVAC (heating and ventilation and air-conditioning, Heating
Ventilation and Air Conditioning) assembly 600, compressor 604 and outdoor heat exchanger 605.
Wherein, HVAC assemblies 600 can include indoor condenser 601 and indoor evaporator 602.In addition,
As shown in Figure 1A, the outlet of compressor 604 connects with the entrance of indoor condenser 601, indoor condensation
The egress selection of device 601 via first throttle branch road or the first through-flow branch road and outdoor heat exchanger 605
Entrance connection, the egress selection of outdoor heat exchanger 605 via the second throttling branch road or second through-flow
Branch road connects with the first end of the tie point 620 of selective on or off and turns on or cut with selectivity
The first end connection of the second branch road 621 only, the second end of tie point 620 and entering for compressor 604
Mouth connection, the second end of the second branch road 621 connect with the entrance of indoor evaporator 602, indoor evaporator
602 outlet connects with the entrance of compressor 604,.
In the present invention, the branch road 621 of tie point 620 and second is to select according to the actual requirements
Property on or off.For example, as shown in Figure 1A, first switch is provided with tie point 620
Valve 622, when first switch valve 622 is opened, tie point 620 turns on, when first switch valve 622
During closing, tie point 620 is ended.In addition, second switch valve 623 is provided with the second branch road 621,
When second switch valve 623 is opened, the second branch road 621 turns on, when second switch valve 623 is closed,
Second branch road 621 ends.
In another embodiment, as shown in Figure 1B, heat pump type air conditioning system can also include：One or three
Port valve 625, the egress selection of outdoor heat exchanger 605 via the second throttling branch road or the second through-flow branch
Road connects with the entrance 625a of the first triple valve 625, the first outlet 625b of the first triple valve 625 with
The first end connection of tie point 620, the second outlet 625c and the second branch road of the first triple valve 625
621 first end connection.So, by first triple valve 625, tie point 620 can be controlled
On or off, and the control on or off of the second branch road 621.
Illustratively, by control the first triple valve 625 entrance 625a- first outlets 625b conducting and
Entrance 625a- second outlets 625c is not turned on, and tie point 620 can be controlled to turn on, the second branch road 621
Cut-off；And by controlling the entrance 625a- first outlets 625b of the first triple valve 625 to be not turned on,
And entrance 625a- second outlets 625c is turned on, and tie point 620 can be controlled to end, the second branch road 621
Conducting.
In addition, in order to prevent that refrigerant is back in indoor evaporator 602 when tie point 620 turns on,
Alternatively, as shown in FIG. 1A and 1B, the outlet of indoor evaporator 602 via check valve 624 with
The entrance connection of compressor 604.So, being merely able to, which allows refrigerant to be flowed to from indoor evaporator 602, presses
Contracting machine 604, and can not flow round about.
In the present invention, or the outlet of indoor condenser 601 is via first throttle branch road and outdoor heat exchange
The entrance connection of device 605, otherwise connected via the first through-flow branch road with the entrance of outdoor heat exchanger 605.
This mode of communicating can be realized using various ways.For example, in one embodiment, such as Figure 1A
Shown in Figure 1B, heat pump type air conditioning system can also include the first expansion switch valve 603, first expansion
The outlet of the entrance of switch valve 603 and indoor condenser 601, the first expansion switch valve 603
Outlet connects with the entrance of outdoor heat exchanger 605, wherein, first throttle branch road is the first expansion switch valve
603 throttling runner, the first through-flow branch road are the through-flow runner of the first expansion switch valve 603.
In the present invention, expansion switch valve is that have expansion valve function (also referred to as electric expansion valve simultaneously
Function) and switch valve function (also referred to as magnetic valve function) valve, it is switch that can be regarded as
Valve and expansion valve it is integrated.Through-flow runner and throttling runner are internally formed in expansion switch valve, when swollen
Swollen switch valve is as switch valve in use, its internal through-flow runner conducting, now forms through-flow branch road；
When expansion switch valve as expansion valve in use, its internal throttling runner conducting, now forms throttling branch
Road.
Embodiment alternatively, as shown in Fig. 2 the heat pump type air conditioning system can also include
3rd switch valve 608 and the first expansion valve 607, wherein, the 3rd switch is provided with the first through-flow branch road
Valve 608, the first expansion valve 607 is provided with first throttle branch road.Specifically, as shown in Fig. 2 room
The outlet of inner condenser 601 is connected with shape via the 3rd switch valve 608 with the entrance of outdoor heat exchanger 605
Into the first through-flow branch road, the outlet of indoor condenser 601 is via the first expansion valve 607 and outdoor heat exchanger
605 entrance is connected to form first throttle branch road.When system is under high-temperature refrigeration pattern, the 3rd
Switch valve 608 is turned on, and the first expansion valve 607 is closed, and the outlet of indoor condenser 601 is logical via first
Stream branch road connects with the entrance of outdoor heat exchanger 605.When system is under low temperature heating pattern, first
Expansion valve 607 is turned on, and the 3rd switch valve 608 is closed, and the outlet of indoor condenser 601 is via first segment
Stream branch road connects with the entrance of outdoor heat exchanger 605.
It is similar with the implementation of the first through-flow branch road and first throttle branch road, as the second through-flow branch road
With the one of which embodiment of the second throttling branch road, as shown in FIG. 1A and 1B, heat pump air conditioner system
System can also include the second expansion switch valve 606, and the entrance of the second expansion switch valve 606 changes with outdoor
The outlet of hot device 605, the outlet of the second expansion switch valve 606 and selective on or off
Tie point 620 first end connection and with the first end of the second branch road 621 of selective on or off
Connection, wherein, second throttles branch road as the second throttling runner for expanding switch valve 606, the second through-flow branch
Road is the through-flow runner of the second expansion switch valve 606.
Embodiment alternatively, as shown in figure 3, the heat pump type air conditioning system can also include
4th switch valve 610 and the second expansion valve 609, wherein, the 4th switch is provided with the second through-flow branch road
Valve 610, second throttling branch road on be provided with the second expansion valve 609.Specifically, as shown in figure 3, room
The outlet of external heat exchanger 605 is via second switch valve 610 and the tie point of selective on or off
620 first end is connected and connected with the first end of the second branch road 621 of selective on or off with shape
Into the second through-flow branch road, the outlet of outdoor heat exchanger 605 turns on via the second expansion valve 609 with selectivity
Or cut-off tie point 620 first end connection and with the second branch road 621 of selective on or off
First end connect to form the second throttling branch road.When system is under high-temperature refrigeration pattern, second is swollen
Swollen valve 609 is turned on, and the 4th switch valve 610 is closed, and the outlet of outdoor heat exchanger 605 is via the second throttling
Branch road with turn on the second branch road 621 first end connect and with the first end of the tie point 620 of cut-off
Connection.When system is under low temperature heating pattern, the 4th switch valve 610 turns on, the second expansion valve 609
Close, the outlet of outdoor heat exchanger 605 is via the of the second through-flow branch road and the tie point 620 of conducting
One end connects and connected with the first end of the second branch road 621 of cut-off.
Laid in order to facilitate pipeline, save space hold, it is preferable that in heat pump air conditioner provided by the invention
Switch valve 606 is expanded using the first expansion switch valve 603 and second in system, i.e. Figure 1A and Figure 1B
Shown embodiment.
Fig. 4 shows the structural representation of the heat pump type air conditioning system according to another embodiment of the present invention.
As shown in figure 4, the heat pump type air conditioning system can also include gas-liquid separator 611, wherein, indoor evaporation
The outlet of device 602 connects with the entrance of gas-liquid separator 611, the second end of tie point 620 and gas-liquid
The entrance connection of separator 611, the outlet of gas-liquid separator 611 connects with the entrance of compressor 604.
So, the refrigerant of the second end outflow through the branch road 621 of indoor evaporator 602 or second can pass through first
To cross gas-liquid separator 611 and carry out gas-liquid separation, the gas isolated is back in compressor 604 again, from
And prevent that liquid refrigerant from entering compressor 604 and damaging compressor 604, so as to extend compression
The service life of machine 604, and improve the efficiency of whole heat pump type air conditioning system.
Heat pump type air conditioning system provided by the invention will be described in detail in different work by taking Fig. 4 as an example below
Cyclic process and principle under pattern.It should be appreciated that other embodiment is (for example, Figure 1A is extremely
Embodiment shown in Fig. 3) under system circulation process and principle to Fig. 4 be it is similar, herein just not
Repeat one by one again.
Pattern one：High-temperature refrigeration pattern.System in this mode when, whole system formed a height
Warm cooling cycle system.As shown in figure 4, first, compressor 604 discharges HTHP through overcompression
Gas, it is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601, due to
Calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, the indoor condenser 601
Only used as runner, now indoor condenser 601 is exported still as the gas of HTHP.Indoor condensation
Device 601 exports to be connected with the first expansion switch valve 603, and now the first expansion switch valve 603 plays switch valve
Effect, is only flowed through as runner, and now the first expansion switch valve 603 is exported still as the gas of HTHP.
First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 is empty with outdoor
Gas is exchanged heat, and heat is dispersed into air, and the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure.Room
External heat exchanger 605 exports to be connected with the second expansion switch valve 606, and now the second expansion switch valve 606 rises
Valve action is expanded, plays throttling action as restricting element, its outlet is low temperature and low pressure liquid.Second is swollen
The swollen aperture of switch valve 606 can give certain aperture according to the actual requirements, and this aperture can be according to installed in room
The pressure of pressure-temperature sensor between the outlet of interior evaporator 602 and the entrance of gas-liquid separator 611
Refrigerant Superheat at Evaporator Outlet is calculated with temperature acquisition data to adjust.First switch valve 622 is closed,
Second switch valve 623 is opened, and so, tie point 620 is ended, and the second branch road 621 turns on.From
The low temperature and low pressure liquid that two expansion switch valves 606 come out, which is got in evaporator 602, to be evaporated, and is made
Obtain gas of the outlet of indoor evaporator 602 for low-temp low-pressure.Indoor evaporator 602 and gas-liquid separator 611
It is connected, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure returns
Into compressor 604, a circulation is consequently formed.Now the flow direction of the apoplexy of HVAC assemblies 600 only flows
Through indoor evaporator 602, indoor 601 calm process of condenser, only flowed through as refrigerant flow path.
Pattern two：Low temperature heating pattern.System in this mode when, whole system formed one it is low
Warm heating circulation system.As shown in figure 4, first, compressor 604 discharges HTHP through overcompression
Gas, it is connected with indoor condenser 601, progress is cold in condenser 601 indoors for the gas of HTHP
It is solidifying so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure.Indoor condenser 601 outlet and the
One expansion switch valve 603 is connected, and now the first expansion switch valve 603 plays expansion valve, as section
Fluid element plays throttling action, and it exports the liquid for low-temp low-pressure.Wherein, the first expansion switch valve 603
Aperture can give certain aperture according to the actual requirements, this aperture can be according to installed in compressor
The temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor in 604 exit it is more
It is few to adjust.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchanger 605
The heat of outdoor air is absorbed, the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.Outdoor heat exchanger
605 outlets are connected with the second expansion switch valve 606, and now the second expansion switch valve 606 plays switch valve
Effect, only flows through as a runner.First switch valve 622 is opened, and second switch valve 623 is closed,
So, tie point 620 turns on, and the second branch road 621 ends.Come out from the second expansion switch valve 606
The gas of low-temp low-pressure be directly entered gas-liquid separator 611, the liquid not being evaporated is passed through gas-liquid point
Separated from device 611, the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.
Bellows design based on existing HVAC, if it is desired to control wind to pass through indoor condenser 601,
So wind is first had to by can just get in condenser 601 after indoor evaporator 602.But adopting
Heat exchange can not be carried out in indoor evaporator 602 under warm pattern, therefore, tie point 620 is turned on, cuts
Only the second branch road 621 so that indoor evaporator 602 is shorted, even distinguished and admirable through indoor evaporator 602,
Refrigerant temperature is also unaffected.
Pattern three：Refrigeration and heating pattern simultaneously.System in this mode when, whole system formed one
Individual refrigeration and heating while open cycle system.As shown in figure 4, first, compressor 604 is discharged through overcompression
The gas of HTHP, it is connected with indoor condenser 601, the gas of HTHP condenser 601 indoors
Inside condensed so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure.Indoor condenser 601
Outlet is connected with the first expansion switch valve 603, and now the first expansion switch valve 603 plays expansion valve,
Throttling action is played as restricting element, its outlet is low temperature and low pressure liquid.Wherein, the first expansion switch
The aperture of valve 603 can give certain aperture according to the actual requirements, and this aperture can be according to installed in pressure
The temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor in the exit of contracting machine 604
Number adjust.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchange
The outlet of device 605 is the liquid of low-temp low-pressure, its outlet is still kept low-temp low-pressure liquid by incomplete evaporation
Body state.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, now second expands
Close valve 606 and play expansion valve, throttled again once as restricting element.First switch valve 622 is closed,
Second switch valve 623 is opened, and so, tie point 620 is ended, and the second branch road 621 is got through.From
The liquid for the low-temp low-pressure that two expansion switch valves 606 come out gets in evaporator 602 and is evaporated, and makes
Obtain gas of the outlet of indoor evaporator 602 for low-temp low-pressure.Indoor evaporator 602 and gas-liquid separator 611
It is connected, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure returns
Into compressor 604, a circulation is consequently formed.Now the flow direction of the apoplexy of HVAC assemblies 600 is simultaneously
Flow through indoor condenser 601 and indoor evaporator 602.
Pattern four：Outdoor heat exchanger defrosting mode.As shown in figure 4, first, compressor 604 is through overvoltage
Indent out the gas of HTHP, be connected with indoor condenser 601.Now, indoor condenser 601 is only
Flowed through as runner, indoor condenser 601 is exported still as the gas of HTHP.Indoor condenser 601
Outlet is connected with the first expansion switch valve 603, and now the first expansion switch valve 603 plays switch valve action,
Only flowed through as runner, now the first expansion switch valve 603 is exported still as the gas of HTHP.First
The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 changes with outdoor air
Heat, heat is dispersed into air, the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure.Outdoor is changed
The hot outlet of device 605 is connected with the second expansion switch valve 606, and now the second expansion switch valve 606 plays expansion
The effect of valve, throttling action is played as restricting element, its outlet is low temperature and low pressure liquid.Second expansion
The aperture of switch valve 606 can give certain aperture according to the actual requirements, this aperture can according to installed in
The pressure of pressure-temperature sensor between the outlet of indoor evaporator 602 and the entrance of gas-liquid separator 611
Power and temperature acquisition data calculate Refrigerant Superheat at Evaporator Outlet to adjust.First switch valve 622 closes
Close, second switch valve 623 is opened, and so, tie point 620 is ended, and the second branch road 621 turns on.
The low temperature and low pressure liquid come out from the second expansion switch valve 606 gets in evaporator 602 and is evaporated,
The outlet of indoor evaporator 602 is the gas-liquid two-phase cold-producing medium of low-temp low-pressure.Indoor evaporator 602 and gas-liquid
Separator 611 is connected, and the liquid not being evaporated is separated by gas-liquid separator 611, last low temperature is low
The gas of pressure is returned in compressor 604, is consequently formed a circulation.Now HVAC assemblies 600 can not
Blow in.
In summary, heat pump type air conditioning system provided by the invention, the feelings in refrigerant circulation direction are not being changed
Automotive air-conditioning system refrigeration and heating, outdoor heat exchanger defrosting function can be achieved under condition, and can meet
The demand of refrigeration and heating simultaneously.During outdoor heat exchanger bypass defrosting, remain to meet in-car heating need
Ask.Further, since the heat pump type air conditioning system of the present invention therefore can subtract only with an outdoor heat exchanger
The windage of car front-end module, pure electric vehicle or the mixing for solving no engine exhaust heat circulatory system are dynamic
Power car using electric-only mode automobile heat pump air-conditioning system heating efficiency it is low, defrosting-defogging method can not be met
Rule require, install the problems such as complicated, and reaching reduces energy consumption, simplied system structure, facilitate what pipeline was arranged
Effect.Heat pump type air conditioning system provided by the invention has the characteristics of simple in construction, therefore is easy to produce in batches.
Under low temperature heating pattern and simultaneously refrigeration and heating pattern, in order to improve heating ability, preferably
Ground, as fig. 5 a and fig. 5b, plate type heat exchanger 612 is provided with whole heat pump type air conditioning system,
The plate type heat exchanger 612 is also disposed in the electromotor cooling system of electric automobile simultaneously.So, can be with
Air-conditioning system refrigerant heat is given using the waste heat of electromotor cooling system, so as to improve compressor 604
Suction temperature and inspiratory capacity.
For example, as shown in Figure 5A, in heat pump type air conditioning system using the second expansion valve 609 and the 4th switch
In the embodiment of valve 610, plate type heat exchanger 612 can be arranged on the second through-flow branch as shown in Figure 5A
Lu Zhong.For example, in one embodiment, the refrigerant inlet 612a of plate type heat exchanger 612 and room
The outlet of external heat exchanger 605, the switches of the refrigerant outlet 612b of plate type heat exchanger 612 and the 4th
The entrance connection of valve 610.Or (not shown) in another embodiment, plate type heat exchanger 612
Refrigerant inlet 612a can also be with the outlet of the 4th switch valve 610, plate type heat exchanger 612
Refrigerant outlet 612b connected with the first end of the tie point 620 of selective on or off and with
The first end connection of second branch road 621 of selective on or off.
At the same time, plate type heat exchanger 612 is arranged in electromotor cooling system simultaneously.As shown in Figure 5A,
Electromotor cooling system can include connecting with plate type heat exchanger 612 to form the motor in loop, motor radiating
Device 613 and water pump 614.So, refrigerant can pass through plate type heat exchanger 612 and electromotor cooling system
In coolant carry out heat exchange.Refrigerant after the 4th switch valve 610 and first switch valve 622,
Return in compressor 604
Or as shown in Figure 5 B, the implementation in heat pump type air conditioning system using the second expansion switch valve 606
In mode, the outlet of the expansion switch valves 606 of the refrigerant inlet 612a of plate type heat exchanger 612 and second
Connection, the refrigerant outlet 612b of plate type heat exchanger 612 and the tie point of selective on or off
620 first end is connected and connected with the first end of the second branch road 621 of selective on or off, and
And plate type heat exchanger 612 is arranged in the electromotor cooling system of electric automobile simultaneously.So, refrigerant energy
Heat exchange is enough carried out by the coolant in plate type heat exchanger 612 and electromotor cooling system.Refrigerant passes through
After first switch valve 622, return in compressor 604.
By plate type heat exchanger 612, air-conditioning system can be improved in low temperature heating pattern and made simultaneously
Heating ability under cold heating pattern.
But, the embodiment party in the heat pump type air conditioning system shown in Fig. 5 B using the second expansion switch valve 606
In formula, in order to avoid carrying out adding for refrigerant under high-temperature refrigeration pattern and outdoor heat exchanger defrosting mode
Heat, it can control whether to carry out heat exchange in plate type heat exchanger 612 using valve.Specifically, it is electric
Machine cooling system can include coolant main line 616, the first coolant branch road 617 and the second coolant branch
Road 618, wherein, the first end on coolant main line 616 optionally with the first coolant branch road 617
First end or the connection of the first end of the second coolant branch road 618.For example, in one embodiment, it is cold
But the first end on liquid main line 616 can connect with the import 615a of the second triple valve 615, the first cooling
The first end of liquid branch road 617 can connect with the first outlet 615b of the second triple valve 615, and second is cold
But the first end of liquid branch road 618 can connect with the second outlet 615c of the second triple valve 615, thus,
By second triple valve 615, it can control the first end on coolant main line 616 optionally with first
The first end of coolant branch road 617 or the connection of the first end of the second coolant branch road 618.In addition, as schemed
Shown in 5B, the second end of the first coolant branch road 617 connects with second end on coolant main line 616,
And the second end of the second coolant branch road 618 also connects with second end on coolant main line 616, wherein,
Motor, motor radiator 613 and water pump 614 are in series with coolant main line 616, in the first cooling
Plate type heat exchanger 612 is in series with liquid branch road 617.
So, when air-conditioning system is operated under low temperature heating pattern or simultaneously refrigeration and heating pattern, now
In order to improve heating ability, it is necessary to be heated in plate type heat exchanger 612 to refrigerant.Therefore, exist
In this case, can be turned on by the control coolant branch road 617 of the second triple valve 615 first,
Thus, the coolant in cooling system flows through plate type heat exchanger 612, at this point it is possible to realize and refrigerant
Heat exchange.However, when system is operated under high-temperature refrigeration pattern or outdoor heat exchanger defrosting mode,
Refrigerant need not now be heated in plate type heat exchanger 612.Therefore, in this case,
Can be by controlling the coolant branch road 618 of the second triple valve 615 second to turn on, thus, cooling system
Coolant in system is not passed through plate type heat exchanger 612, stream of the plate type heat exchanger 612 as just refrigerant
Flow through in road.
In heat pump type air conditioning system provided by the invention, R134a, R410a, R32, R290 can be used
Etc. various refrigerants, preferentially high temperature refrigerant is selected.
Fig. 6 is the structural representation according to the heat pump type air conditioning system of another embodiment of the present invention.Such as figure
Shown in 6, HVAC assemblies 600 can also include ptc heater 619, and the ptc heater 619 is used
Heated in the wind to flowing through indoor condenser 601.
In the present invention, ptc heater 619 can be high pressure PTC (being driven by vehicle high-tension battery),
Voltage range：200V-900V.Or ptc heater 619 can also be low pressure PTC (12V or
24V batteries drive), voltage range：9V-32V.In addition, this ptc heater 619 can be by
Several or a complete core body of several pieces of PTC-ceramic piece modules and radiating fin composition, or
The PTC-ceramic piece module of strip with radiating fin or bulk.
In the present invention, the ptc heater 619 can arrange the windward side of condenser 601 indoors
Or leeward side.Also, in order to improve the heating effect of the wind to flowing through indoor condenser 601, the PTC
Heater 619 can be arranged in parallel with indoor condenser 601.In other embodiments, the PTC
Heater 619 can also be arranged in the blowing at pin air port and defrosting outlet of the casing of HVAC assemblies 600,
It can also be arranged at the air port of defrosting duct.
If ptc heater 619 is arranged in the windward side or leeward of casing interior room inner condenser 601
Side, be arranged in parallel with indoor condenser 601, can the grooving on casing housing, ptc heater 619 hang down
Straight cutting enters to put casing into, can also welding support, ptc heater on the side plate of condenser 601 indoors
619 are fixed by screws on the support of indoor condenser 601.If ptc heater 619 is arranged
In blowing at pin air port and defrosting outlet for casing, or it is arranged at the air port of defrosting duct, screw can be passed through
It is directly anchored at the air port of casing air outlet and wind passage mouth.
By this embodiment, when temperature is too low outside car, the heating capacity of heat pump low temperature heating is unsatisfactory for car
During interior demand, the auxiliary heating heating of ptc heater 619 can be run, it is possible thereby to eliminate heat pump air conditioner
The defects of heating capacity is small when system hypothermia heats, and vehicle defrosting-defogging is slow, and heating effect is bad.
As described above, in the present invention, expansion switch valve is that have expansion valve function and switch valve work(simultaneously
Can valve, it is the integrated of switch valve and expansion valve that can be regarded as.It will be provided below a kind of swollen
The example embodiment of swollen switch valve.
As shown in fig. 7, expansion switch valve mentioned above can include valve body 500, wherein, the valve body
On 500 formed with import 501, outlet 502 and connection import 501 and outlet 502 between in
Portion's runner, the first valve element 503 and the second valve element 504 are installed on inner flow passage, the first valve element 503 makes
Obtain import 501 directly to connect with outlet 502 or disconnect connection, the second valve element 504 causes the He of import 501
Outlet 502 is connected by restriction 505 or disconnects connection.
Wherein, " the directly connection " that the first valve element is realized refers to enter from the import 501 of valve body 500
Cooling agent can cross the first valve element and valve body 500 is insusceptibly flowed directly to by inner flow passage
Outlet 502, " the disconnecting connection " that the first valve element is realized refer to enter from the import 501 of valve body 500
Cooling agent can not cross the first valve element and the outlet 502 of valve body 500 can not be flowed to by inner flow passage.
" being connected by restriction " that second valve element is realized refers to from the cold of the entrance of import 501 of valve body 500
But the outlet 502 of valve body 500 is flowed to after the throttling that agent can cross the second valve element and pass through restriction, and
" disconnect connection " that second valve element is realized refer to from the cooling agent of the entrance of import 501 of valve body 500 without
Method crosses the second valve element and the outlet 502 of valve body 500 can not be flowed to by restriction 505.
So, can be made by the control to the first valve element and the second valve element, expansion switch valve of the invention
Obtain the cooling agent entered from import 501 and at least realize three kinds of states.That is, 1) cut-off state；2) cross
The direct connected state of first valve element 503；And 3) cross the throttling mode of communicating of the second valve element 504.
Wherein, the liquid refrigerant of HTHP can turn into low temperature again after the throttling of restriction 505
The vaporific hydraulic pressure refrigerant of low pressure, can be that the evaporation of refrigerant create conditions, i.e. restriction 505
Cross-sectional area is less than the cross-sectional area of outlet 504, and by controlling the second valve element, restriction 505
Aperture size can be adjusted, and with flow of the controlling stream through restriction 505, be prevented because of the very few generation of refrigerant
Refrigeration deficiency, and prevent from causing compressor generation liquid hit phenomenon because refrigerant is excessive.That is, second
The cooperation of valve element 504 and valve body 500 can make it that expanding switch valve has the function of expansion valve.
So, by installing the first valve element 503 and the second valve element on the inner flow passage of same valve body 500
504, it is simple in construction to realize the break-make control of import 501 and outlet 502 and/or throttling control function,
It is readily produced and installs, and when expansion switch valve provided by the invention is applied to heat pump, can subtracts
The refrigerant charge of few whole heat pump, reduces cost, simplifies pipeline connection, more conducively heat pump system
The oil return of system.
As a kind of exemplary inner mounting structure of valve body 500, as shown in Fig. 7 to Figure 12, valve
Body 500 includes forming the valve seat 510 of inner flow passage and the first valve casing 511 on the valve seat 510
With the second valve casing 512, the first electromagnetism for driving the first valve element 503 is installed in first valve casing 511
Drive division 521, the second electromagnetic drive for driving the second valve element 504 is installed in second valve casing 512
Portion 522, the inner flow passage that the first valve element 503 is extended in valve seat 510 from the first valve casing 511, second
The inner flow passage that valve element 504 is extended in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., magnet coil, power on/off control energy
Enough positions for easily controlling the first valve element 503, and then control import 501 directly to be connected with outlet 502
Or disconnect connection；By to the second electromagnetic drive part 522, e.g., magnet coil, power on/off control
The position of the second valve element 504 can easily be controlled, so as to control import 501 and outlet 502 whether with
Restriction 505 connects.In other words, shared import 501 and outlet 502 have been installed in parallel in valve body 500
Electric expansion valve and magnetic valve, it is thus possible to realize expansion switch valve break-make and/or throttling automation
Control, and simplify pipeline trend.
To make full use of the locus of all directions of expansion switch valve, avoid expanding switch valve and difference
Pipeline connection produces interference, and valve seat 510 is formed as polyhedral structure, the first valve casing 511, the second valve casing
512nd, import 501 and outlet 502 are separately positioned on the different surfaces of the polyhedral structure, wherein,
The installation direction of first valve casing 511 and the second valve casing 512 is mutually perpendicular to, import 501 and outlet 502
Opening direction is mutually perpendicular to.So, import, export pipeline can be connected to the difference of polyhedral structure
On surface, it can avoid that pipeline arrangement is in disorder, the problem of tangling.
As a kind of typical internal structure of expansion switch valve, as shown in Figure 7 to 10, inside stream
Road includes first flow 506 and the second flow channel 507 connected respectively with import 501, first flow 506
On formed formed with the first valve port 516 coordinated with the first valve element 503, restriction 505 in second flow channel
On 507 be formed as with the second valve element 504 coordinate the second valve port 517, first flow 506 and second
Runner 507 is intersected in the downstream of the second valve port 517 and connected with outlet 502.
That is, closing or the opening to the first valve port 516 are realized by converting the position of the first valve element 503,
And then blocking or turning on for the first flow 506 of connection import 501 and outlet 502 is controlled, so as to
Realize the connection of above-described magnetic valve or disconnect the function of connection.Similarly, by converting the second valve
Blocking or turning on to the second valve port 517 is realized in the position of core 504, so as to realize electronic expansion
The throttling function of valve.
First flow 506 and second flow channel 507 can be respectively communicated with import with any appropriate arrangement
501 and outlet 502, for reduce valve body 500 overall space-consuming, as shown in figure 11, second flow channel
507 open up in the same direction with outlet 502, and first flow 506 is formed as orthogonal with second flow channel 507
First through hole 526, import 501 by the second through hole 527 for being opened in the side wall of second flow channel 507 with
Second flow channel 507 is connected, and the through hole 527 of first through hole 526 and second is respectively communicated with import 501.Its
In, first through hole 526 can be set or be arranged in parallel in spatial vertical with the second through hole 527, this hair
It is bright that this is not restricted, belong among protection scope of the present invention.
For the further overall space-consuming for simplifying valve body 500, as shown in Figure 14 to Figure 17, import 501
It is opened in mutual vertically on valve body 500 with outlet 502.So, as shown in Figure 14 to Figure 16, enter
The axis of mouth 501, the axis (i.e. the axis of second flow channel 507) for exporting 502, and first flow 506
Axis it is vertically arranged two-by-two in space, so as to prevent the shifting of the first valve element 503 and the second valve element 504
Movable property life interference, and can maximumlly utilize the inner space of valve body 500.
As shown in Figure 10 and Figure 11, for ease of realizing the closing of the first valve port 516 and opening, the first valve
Core 503 is along moving direction with the coaxial laying of the first valve port 516 selectively to block or depart from the first valve port
516。
For ease of realizing the closing of the second valve port 517 and opening, the second valve element 504 is along moving direction and
Two valve ports 517 are coaxially laid selectively to block or depart from the second valve port 517.
Wherein, as shown in figure 13, first flow 506 is blocked for the first valve element 503 of guarantee reliable
Property, the first valve element 503 can include the first valve rod 513 and be connected to the of the end of the first valve rod 513
One plug 523, first plug 523 are used to be sealed against on the end face of the first valve port 516 to block
First flow 506.
The aperture size of the restriction 505 of switch valve is expanded for ease of regulation, as shown in Figure 10 and Figure 11,
Second valve element 504 includes the second valve rod 514, and the end of second valve rod 514 is formed as taper header structure,
Second valve port 517 is formed as the taper pore structure being engaged with the taper header structure.
Wherein, the aperture of restriction 505 for expanding switch valve can moving up and down by the second valve element 504
To adjust, and moving up and down for the second valve element 504 can be adjusted by the second electromagnetic drive part 522.
If the aperture for expanding the restriction 505 of switch valve is zero, as shown in Figure 10, the second valve element 504 is in
Extreme lower position, the second valve element 504 block the second valve port 517, refrigerant completely can not by restriction 505,
That is the second valve port 517；If expansion switch valve restriction 505 has aperture, as shown in figure 11, the second valve
There is space between the taper header structure and restriction 505 of the end of core 504, flowed again after refrigerant throttling
To outlet 502.If desired, can be by controlling the second electromagnetism during the throttle opening of increase expansion switch valve
Drive division 522 so that the second valve element 504 moves up, to cause conical head structure away from restriction 505,
So as to realize that the change of the aperture of restriction 505 is big；On the contrary, when the restriction 505 for needing reduction expansion switch valve
Aperture when, can drive under the phase of the second valve element 504 mobile.
In use, when only needing to use the magnetic valve function of expansion switch valve, such as Figure 10, Tu13He
Shown in Figure 16, the first valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode,
Second valve element 504 is in extreme lower position, and the second valve element 504 blocks throttle orifice 505, from import 501
The first valve port can not can only be passed sequentially through by throttle orifice 505 completely by flowing into the refrigerant of inner flow passage
516th, first through hole 526 is flowed into outlet 502.When magnetic valve powers off, the first valve element 503 is to the left
Mobile, the first plug 523 and the first valve port 516 separate, and refrigerant can lead to from first through hole 526
Cross；Work as solenoid valves, the first valve element 503 moves right, the first plug 523 and the first valve port 516
Fitting, refrigerant can not pass through from first through hole 526.
It should be noted that the dotted line with the arrow in Figure 10 and Figure 16 represents refrigerant using electromagnetism
Flow route and trend during valve function.
When only needing to use the electric expansion valve function of expansion switch valve, as shown in Figure 11 and Figure 17,
Second valve port 517, i.e. restriction 505 are in open mode, and the first valve element 503 blocks the first valve port 516,
The refrigerant of inner flow passage is flowed into from import 501 can only be passed sequentially through by first through hole 526
Second through hole 527, restriction 505 are flowed into outlet 502, and can move up and down the second valve element
504 adjust the size of the aperture of restriction 505.
It should be noted that the dotted line with the arrow in Figure 11 and Figure 17 represents refrigerant using electronics
Flow route and trend during expansion valve function.
When need simultaneously using expansion switch valve magnetic valve function and electric expansion valve function when, as Fig. 8,
Shown in Figure 14 and Figure 15, wherein, dotted line with the arrow represents the glide path and trend of refrigerant,
First valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, restriction 505
In open mode, the refrigerant for flowing into inner flow passage can be respectively along first flow 506 and second
The flow direction outlet of road 507 502, so as to have magnetic valve function and electric expansion valve function simultaneously.
It should be appreciated that one of which example of the above-mentioned embodiment as just expansion switch valve, and
And be not intended to limit the invention, other have the expansion of expansion valve function and switch valve function switch simultaneously
Valve is equally applicable to the present invention.
The present invention also provides a kind of electric automobile, including according to above-mentioned heat pump air conditioner system provided by the invention
System.Wherein, the electric automobile can include pure electric automobile, hybrid vehicle, fuel cell car.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, it is still, of the invention and unlimited
Detail in above-mentioned embodiment, can be to the present invention in the range of the technology design of the present invention
Technical scheme carry out a variety of simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special
Sign, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not
The repetition wanted, the present invention no longer separately illustrate to various combinations of possible ways.
In addition, various embodiments of the present invention can be combined randomly, as long as its
Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (18)
1. a kind of heat pump type air conditioning system, it is characterised in that the system includes：Indoor condenser (601),
Indoor evaporator (602), compressor (604) and outdoor heat exchanger (605), the compressor (604)
Outlet connected with the entrance of the indoor condenser (601), indoor condenser (601) go out
Mouth is optionally via first throttle branch road or the first through-flow branch road and the outdoor heat exchanger (605)
Entrance connects, the egress selection of the outdoor heat exchanger (605) via the second throttling branch road or the
Two through-flow branch roads connected with the first end of the tie point (620) of selective on or off and with selection
Property on or off the second branch road (621) first end connection, the of the tie point (620)
Two ends connect with the entrance of the compressor (604), the second end of second branch road (621) and institute
State the entrance connection of indoor evaporator (602), outlet and the pressure of the indoor evaporator (602)
The entrance connection of contracting machine (604).
2. heat pump type air conditioning system according to claim 1, it is characterised in that the tie point
(620) first switch valve (622) is provided with.
3. heat pump type air conditioning system according to claim 1, it is characterised in that second branch road
(621) second switch valve (623) is provided with.
4. heat pump type air conditioning system according to claim 1, it is characterised in that the heat pump air conditioner
System also includes：First triple valve (625), the egress selection of the outdoor heat exchanger (605)
Connected via the second throttling branch road or the second through-flow branch road with the entrance of first triple valve (625),
The first outlet of first triple valve (625) connects with the first end of the tie point (620),
The second outlet of first triple valve (625) connects with the first end of second branch road (621).
5. heat pump type air conditioning system according to claim 1, it is characterised in that the indoor evaporation
The outlet of device (602) connects via check valve (624) with the entrance of the compressor (604).
6. heat pump type air conditioning system according to claim 1, it is characterised in that described first is through-flow
The 3rd switch valve (608) is provided with branch road, the first expansion valve is provided with the first throttle branch road
(607)。
7. heat pump type air conditioning system according to claim 1, it is characterised in that the heat pump air conditioner
System also includes the first expansion switch valve (603), the entrance of the first expansion switch valve (603) and institute
State the outlet of indoor condenser (601), this first expansion switch valve (603) outlet with it is described
The entrance connection of outdoor heat exchanger (605), the first throttle branch road are the described first expansion switch valve
(603) throttling runner, the first through-flow branch road are the logical of the described first expansion switch valve (603)
Flow runner.
8. heat pump type air conditioning system according to claim 1, it is characterised in that described second is through-flow
The 4th switch valve (610) is provided with branch road, the second expansion valve is provided with the second throttling branch road
(609)。
9. heat pump type air conditioning system according to claim 8, it is characterised in that the heat pump air conditioner
System is applied to electric automobile, and the heat pump type air conditioning system also includes：Plate type heat exchanger (612),
Wherein, the plate type heat exchanger (612) is arranged in the described second through-flow branch road, and described board-like
Heat exchanger (612) while it is arranged in the electromotor cooling system of the electric automobile.
10. heat pump type air conditioning system according to claim 9, it is characterised in that the plate-type heat-exchange
The refrigerant inlet of device (612) and the outlet of the outdoor heat exchanger (605), it is described board-like to change
The refrigerant outlet of hot device (612) connects with the entrance of the 4th switch valve (610).
11. the heat pump type air conditioning system according to claim 9 or 10, it is characterised in that the electricity
Machine cooling system with the plate type heat exchanger (612) including connecting to form the motor in loop, motor dissipates
Hot device (613) and water pump (614).
12. heat pump type air conditioning system according to claim 1, it is characterised in that the heat pump air conditioner
System also includes the second expansion switch valve (606), the entrance of the second expansion switch valve (606) and institute
State the outlet of outdoor heat exchanger (605), this second expansion switch valve (606) outlet with it is described
The tie point (620) of selective on or off first end connection and with it is described selectivity conducting or
The first end connection of the second branch road (621) of cut-off, the second throttling branch road are the described second expansion
The throttling runner of switch valve (606), the second through-flow branch road are the described second expansion switch valve (606)
Through-flow runner.
13. heat pump type air conditioning system according to claim 12, it is characterised in that the heat pump is empty
Adjusting system is applied to electric automobile, and the heat pump type air conditioning system also includes：Plate type heat exchanger (612),
Wherein, the refrigerant inlet of the plate type heat exchanger (612) and the described second expansion switch valve (606)
Outlet, the refrigerant outlet of the plate type heat exchanger (612) with it is described selectivity conducting or cut
Tie point (620) only first end connection and with the second branch road of the selective on or off
(621) first end connection, and the plate type heat exchanger (612) while it is arranged on the electronic vapour
In the electromotor cooling system of car.
14. system according to claim 13, it is characterised in that the electromotor cooling system bag
Coolant main line (616), the first coolant branch road (617) and the second coolant branch road (618) are included,
The first end of the coolant main line (616) optionally with the first coolant branch road (617)
First end or the connection of the first end of the second coolant branch road (618), the first coolant branch road
(617) the second end and the second end of the second coolant branch road (618) and the coolant main line
(616) the second end connection, wherein, it is mechanical, electrical that electricity is in series with the coolant main line (616)
Machine radiator (613) and water pump (614), connected on the first coolant branch road (617)
State plate type heat exchanger (612).
15. heat pump type air conditioning system according to claim 1, it is characterised in that the heat pump air conditioner
System also includes gas-liquid separator (611), outlet and the gas-liquid of the indoor evaporator (602)
The entrance connection of separator (611), the second end and the gas-liquid separation of the tie point (620)
The entrance connection of device (611), outlet and the compressor (604) of the gas-liquid separator (611)
Entrance connection.
16. heat pump type air conditioning system according to claim 1, it is characterised in that the heat pump air conditioner
System also includes ptc heater (619), and the ptc heater (619) is used for flowing through the interior
The wind of condenser (601) is heated.
17. heat pump type air conditioning system according to claim 16, it is characterised in that the PTC adds
Hot device (619) is arranged in the windward side or leeward side of the indoor condenser (601).
18. a kind of electric automobile, it is characterised in that including according to any one in claim 1-17
Described heat pump type air conditioning system.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309259.3A CN107356004B (en) | 2016-05-10 | 2016-05-10 | Heat pump air conditioning system and electric automobile |
| EP17795472.4A EP3453991A4 (en) | 2016-05-10 | 2017-05-03 | Heat pump air-conditioning system and electric vehicle |
| US16/300,274 US20190143790A1 (en) | 2016-05-10 | 2017-05-03 | Heat pump air-conditioning system and electric vehicle |
| PCT/CN2017/082945 WO2017193854A1 (en) | 2016-05-10 | 2017-05-03 | Heat pump air-conditioning system and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309259.3A CN107356004B (en) | 2016-05-10 | 2016-05-10 | Heat pump air conditioning system and electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107356004A true CN107356004A (en) | 2017-11-17 |
| CN107356004B CN107356004B (en) | 2021-04-20 |
Family
ID=60272029
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610309259.3A Active CN107356004B (en) | 2016-05-10 | 2016-05-10 | Heat pump air conditioning system and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107356004B (en) |
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| Publication number | Publication date |
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| CN107356004B (en) | 2021-04-20 |
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