CN107351630A - Heat pump type air conditioning system and electric automobile - Google Patents

Heat pump type air conditioning system and electric automobile Download PDF

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Publication number
CN107351630A
CN107351630A CN201610309157.1A CN201610309157A CN107351630A CN 107351630 A CN107351630 A CN 107351630A CN 201610309157 A CN201610309157 A CN 201610309157A CN 107351630 A CN107351630 A CN 107351630A
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CN
China
Prior art keywords
branch road
valve
heat pump
outlet
conditioning system
Prior art date
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Granted
Application number
CN201610309157.1A
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Chinese (zh)
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CN107351630B (en
Inventor
梁耀炜
叶梅娇
陈雪峰
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201610309157.1A priority Critical patent/CN107351630B/en
Publication of CN107351630A publication Critical patent/CN107351630A/en
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Classifications

    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/003—Component temperature regulation using an air flow

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (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, including：Indoor condenser, indoor evaporator, compressor, outdoor heat exchanger and battery bag, indoor condenser connects via first throttle branch road or the first through-flow branch road with outdoor heat exchanger, outdoor heat exchanger is connected with tie point via the second throttling branch road or the second through-flow branch road and connected with the second branch road, tie point connects with compressor, second branch road connects with indoor evaporator, indoor evaporator connects with compressor, evaporator in battery bag is connected with outdoor heat exchanger via battery cooling branch road or connected via battery cooling branch road with tie point and the second branch road, and connected via battery heating branch road with compressor, evaporator in battery bag connects via battery cooling for reflux branch road with compressor, and it is heated to reflux branch road via battery to connect with indoor condenser.Heating efficiency is improved thus, it is possible to reach, be heated or cooled using air-conditioning system for battery bag and other effects.

Description

Heat pump type air conditioning system and electric automobile
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 cold that Publication No. CN205039220U utility model patent discloses a kind of automobile power cell But system.Though the system can use in all kinds of electric automobiles are to battery Cooling Air-conditioning System, this is Unite it is single only cooling system, there is no battery heating system, the patented technology is only capable of meeting that battery high-temperature is cold But use, the requirement to battery heating under low temperature can not be met.
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, can not change refrigerant Loop direction can be achieved automotive air-conditioning system refrigeration and heating, cool down and heat to battery so as to reach, And can meets in-car refrigeration and heating demands simultaneously.
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, outdoor heat exchanger and internal setting Have a battery bag of evaporator, the egress selection of the indoor condenser via first throttle branch road or One through-flow branch road connects with the entrance of the outdoor heat exchanger, the egress selection of the outdoor heat exchanger Via the second throttling branch road or the second through-flow branch road and the first of the tie point of selective on or off End connection and connected with the first end of the second branch road of selective on or off, the of the tie point Two ends connect with the entrance of the compressor, the second end and the indoor evaporator of second branch road Entrance connects, and the outlet of the indoor evaporator connects with the entrance of the compressor, in the battery bag The entrance of evaporator cool down branch road and the outdoor heat exchanger via the battery of selective on or off Outlet or via the battery cool down branch road and the tie point first end and second The first end connection on road, and heat branch road and the compressor via the battery of selective on or off Outlet, the outlet of the evaporator in the battery bag is cold via the battery of selective on or off But backflow branch road connects with the entrance of the compressor, and adds via the battery of selective on or off The outlet of heat backflow branch road and the indoor condenser.
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 the entrance of the first check valve and the compressor It is logical.
Alternatively, the entrance of the evaporator in the battery bag cools down branch road and the room via the battery The outlet of external heat exchanger, and it is provided with the first expansion valve on battery cooling branch road.
Alternatively, the 3rd switch valve and the second check valve are additionally provided with the battery cooling branch road, it is described The entrance of first expansion valve is described by the 3rd switch valve and the outlet of the outdoor heat exchanger The outlet of first expansion valve is connected by the entrance of the evaporator in second check valve and the battery bag It is logical.
Alternatively, the entrance of the evaporator in the battery bag cools down branch road and described the via the battery The first end of one branch road and the connection of the first end of the second branch road, and set on battery cooling branch road There is flow valve.
Alternatively, the 4th switch valve and the 3rd check valve are additionally provided with the battery cooling branch road, it is described The entrance of flow valve is via the first end and the second branch road of the 4th switch valve and the tie point First end connects, and the outlet of the flow valve is via the evaporation in the 3rd check valve and the battery bag The entrance connection of device.
Alternatively, it is provided with the 5th switch valve on the battery heating branch road.
Alternatively, it is provided with the 6th switch valve on the battery cooling for reflux branch road.
Alternatively, the battery is heated to reflux being provided with the 7th switch valve on branch road.
Alternatively, the battery is heated to reflux being additionally provided with the 4th check valve on branch road.
Alternatively, the 8th switch valve is provided with the described first through-flow branch road, on the first throttle branch road It is provided with the second 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 9th switch valve is provided with the described second through-flow branch road, described second throttles on branch road It is provided with the 3rd 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 9th 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 gas-liquid separator Connected with the entrance of the compressor, the entrance of the gas-liquid separator and the outlet of the indoor evaporator Connected with the second end of the tie point, and the outlet of the evaporator in the battery bag is via described The battery cooling for reflux branch road of selective on or off connects with the entrance of the gas-liquid separator.
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.
Alternatively, the battery bag includes battery bag casing and is arranged on multiple dynamic in the battery bag casing Power battery, the evaporator in the battery bag be arranged in the battery bag casing and with the multiple power Battery is brought into close contact.
According to the second aspect of the invention, there is provided a kind of electric automobile, including first aspect present invention institute The heat pump type air conditioning system stated.
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 freezes and heated, cools down and heat to battery so as to play a part of, while and can Meet in-car refrigeration and heating demands.During high-temperature refrigeration, the refrigerant liquid of low-temp low-pressure enters battery bag Interior evaporator heat absorption is changed into gas, and realizes the refrigerating function to battery system；It is high during low temperature heating The evaporator that the refrigerant gas of warm high pressure enters battery bag heats to battery, realizes and battery system is added Hot function.The present invention is a kind of new air conditioner heat pump system to batteries of electric automobile cooling heating, directly Connect and exchanged heat with air-conditioning refrigerant to battery, heat exchange efficiency is high, is not influenceed by external environment, either in high temperature Or under low temperature environment, battery can be made to be operated within the scope of suitable temperature, improve the discharge and recharge of battery Efficiency, endurance is improved, extend battery life, it is ensured that security.
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 the present invention, electric automobile can include pure electric automobile, hybrid vehicle, fuel cell Automobile.
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 the and of outdoor heat exchanger 605 It is internally provided with the battery bag 620 of evaporator.Wherein, HVAC assemblies 600 can include indoor condensation Device 601 and indoor evaporator 602.In addition, as shown in Figure 1A, outlet and the interior of compressor 604 Condenser 601 entrance connection, the egress selection of indoor condenser 601 via first throttle branch road Or first through-flow branch road connected with the entrance of outdoor heat exchanger 605, the egress selection of outdoor heat exchanger 605 Property via the second throttling branch road or the tie point 620 of the second through-flow branch road and selective on or off First end connection and connected with the first end of the second branch road 621 of selective on or off, first Second end on road 620 connects with the entrance of compressor 604, the second end and the indoor steaming of the second branch road 621 The entrance connection of device 602 is sent out, the outlet of indoor evaporator 602 connects with the entrance of compressor 604.
In addition, as shown in Figure 1A, the entrance of the evaporator in battery bag 625 via selectivity conducting or The battery cooling branch road 626 of cut-off cools down branch with the outlet of outdoor heat exchanger 605 or via battery Road 626 is connected with the first end of tie point 620 and the first end of the second branch road 621 (such as figure below Shown in 4 to Fig. 6), battery cooling branch road 626 can carry out cold in the case of conducting to battery bag 625 But, battery bag 625 is avoided to work at too high a temperature；The entrance of evaporator in battery bag 625 is also Via the battery heating branch road 627 and the outlet of compressor 604, battery of selective on or off Heating branch road 627 can heat in the case of conducting to battery bag 625, avoid battery bag 625 Work at a too low temperature；The outlet of evaporator in battery bag 625 is via selective on or off Battery cooling for reflux branch road 628 connected with the entrance of compressor 604, to cool down branch with above-mentioned battery Road 626 forms a circulation；The outlet of evaporator in battery bag 625 is via selective on or off Battery be heated to reflux the outlet of branch road 629 and indoor condenser 601, to add with above-mentioned battery Hot branch road 627 forms a circulation.
Explanation is needed exist for, in the present invention, battery bag 625 can include battery bag casing and set Put multiple electrokinetic cells in the battery bag casing, the evaporator in battery bag 625 above-mentioned can To be arranged in battery bag casing and be brought into close contact with multiple electrokinetic cells.So, cold-producing medium stream is through electricity Pond is exchanged heat when wrapping the evaporator in 625, and the evaporator in battery bag 625 and multiple electrokinetic cells It is brought into close contact so that refrigerant can improve heat exchange efficiency with electrokinetic cell direct heat transfer.
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 640, 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 640a of the first triple valve 640, the first outlet 640b of the first triple valve 640 with The first end connection of tie point 620, the second outlet 640c and the second branch road of the first triple valve 640 621 first end connection.So, by first triple valve 640, 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 640 entrance 640a- first outlets 640b conducting and Entrance 640a- second outlets 640c 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 640a- first outlets 640b of the first triple valve 640 to be not turned on, And entrance 640a- second outlets 640c 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 is via the first check valve 624 Connected with the entrance of compressor 604.So, it is merely able to allow refrigerant to flow to from indoor evaporator 602 Compressor 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 8th switch valve 608 and the second expansion valve 607, wherein, the 8th switch is provided with the first through-flow branch road Valve 608, the second expansion valve 607 is provided with first throttle branch road.Specifically, indoor condenser 601 Outlet connected via the 8th switch valve 608 with the entrance of outdoor heat exchanger 605 to form the first through-flow branch Road, the outlet of indoor condenser 601 connect via the entrance of the second expansion valve 607 and outdoor heat exchanger 605 Pass to form first throttle branch road.When system is under high-temperature refrigeration pattern, the 8th switch valve 608 is led Logical, the second expansion valve 607 is closed, and the outlet of indoor condenser 601 is via the first through-flow branch road and outdoor The entrance connection of heat exchanger 605.When system is under low temperature heating pattern, the second expansion valve 607 is led Logical, the 8th switch valve 608 is closed, and the outlet of indoor condenser 601 is via first throttle branch road and outdoor The entrance connection of 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 second throttling branch road one of which embodiment, as shown in figure 1, heat pump type air conditioning system can also wrap The second expansion switch valve 606 is included, the entrance and outdoor heat exchanger 605 of the second expansion switch valve 606 Outlet, the outlet of the second expansion switch valve 606 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, its In, the second throttling branch road is the throttling runner of the second expansion switch valve 606, and the second through-flow branch road is second Expand the through-flow runner of switch valve 606.
Embodiment alternatively, as shown in figure 3, the heat pump type air conditioning system can also include 9th switch valve 610 and the 3rd expansion valve 609, wherein, the 9th switch is provided with the second through-flow branch road Valve 610, second throttling branch road on be provided with the 3rd expansion valve 609.Specifically, as shown in figure 3, room The outlet of external heat exchanger 605 is via the 9th 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 3rd 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, the 3rd is swollen Swollen valve 609 is turned on, and the 9th switch valve 610 is closed, and the outlet of outdoor heat exchanger 605 is via the second throttling Branch road with end tie point 620 first end connect and with the first end of the second branch road 621 of conducting Connection.When system is under low temperature heating pattern, the 9th switch valve 610 turns on, the 3rd 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.
In addition, in the present invention, in embodiment as shown in Figure 1, the evaporator in battery bag 625 Entrance the outlet of branch road 626 and outdoor heat exchanger 605, battery cooling branch road are cooled down via battery The first expansion valve 630 is provided with 626, for being carried out before refrigerant flows into battery bag to refrigerant Throttling is handled.In addition, to be additionally provided with the 3rd switch valve 631 and second unidirectional for battery cooling branch road 626 Valve 632, the entrance of the first expansion valve 630 are gone out by the 3rd switch valve 631 and outdoor heat exchanger 605 Mouth connection, the outlet of the first expansion valve 630 pass through the second check valve 632 and the evaporation in battery bag 625 The entrance connection of device.In the present embodiment, the outlet of outdoor heat exchanger 605 is formed as two-way, wherein Lead to the second expansion switch valve 606, the second expansion switch valve 606 and selective on or off all the way Tie point 620 first end connection and with the first end of the second branch road 621 of selective on or off Connection, another way are battery cooling branch road 626.
In another embodiment, as shown in figure 4, the entrance of evaporator in battery bag 625 via The battery cooling branch road 626 and the first end and the second branch road of tie point 620 of selective on or off 621 first end connection.In this embodiment, stream can be provided with battery cooling branch road 626 Valve 633 is measured, the uninterrupted of the refrigerant for adjusting the evaporator entered in battery bag 625.In addition, The 4th switch valve 634 and the 3rd check valve 635, flow valve are additionally provided with battery cooling branch road 626 633 entrance is via the first end and the second branch road 621 of the 4th switch valve 634 and tie point 620 First end connects, and the outlet of flow valve 633 is via the 3rd check valve 635 and the evaporation in battery bag 625 The entrance connection of device.In the present embodiment, the outlet of outdoor heat exchanger 605 and the second expansion switch valve 606 entrance connection, second expansion switch valve 606 outlet be formed as three tunnels, wherein all the way with selection Property on or off tie point 620 first end connection, the second tunnel and selective on or off The first end connection of second branch road 621, the 3rd tunnel are battery cooling branch road 626.In order to facilitate pipeline Lay, save space hold, it is preferable that such as Fig. 4 is used in heat pump type air conditioning system provided by the invention 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 of separator 611 is connected, and the outlet of the evaporator in battery bag 625 is turned on or cut via selectivity Battery cooling for reflux branch road 628 only connects with the entrance of gas-liquid separator 611, gas-liquid separator 611 Outlet connected with the entrance of compressor 604.So, through indoor evaporator 602, tie point 620 The second end or battery cooling for reflux branch road 628 flow out refrigerant can first pass around gas-liquid separator 611 carry out gas-liquid separation, and the gas isolated is back in compressor 604 again, so as to prevent liquid system Cryogen enters compressor 604 and damages compressor 604, so as to extend the use of compressor 604 Life-span, 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, Fig. 1 extremely schemes Embodiment shown in 3) under system circulation process and principle to Fig. 4 be it is similar, herein just no longer Repeat one by one.
Firstly the need of explanation, the 5th switch valve 636, battery are provided with battery heating branch road 627 The 6th switch valve 637 is provided with cooling for reflux branch road 628, battery is heated to reflux setting on branch road 629 There is the 7th switch valve 638, be provided with the 4th switch valve 634 on battery cooling branch road 626, opened through above-mentioned Close the opening and closing combination of valve, it is possible to achieve the on or off of each bar branch road.
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 installation Pressure-temperature sensor between the entrance of the outlet of evaporator 602 and gas-liquid separator 611 indoors Pressure and temperature gathered data calculates Refrigerant Superheat at Evaporator Outlet to adjust.First switch valve 622 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, which is got in evaporator 602, to be steamed Hair so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure.
In this circulation, the 5th switch valve 636 and the 7th switch valve 638 are closed, and make battery heating branch Road 627 and battery are heated to reflux branch road 629 and disconnected, while open the 4th switch valve 634 and the 6th switch Valve 637, turn on battery cooling branch road 626 and battery cooling for reflux branch road 628.So, from second The low-temperature low-pressure refrigerant liquid that expansion switch valve 606 comes out is divided into two-way, and the first via flows through the 4th switch Valve 634 is entered in the evaporator of battery bag 625, and the refrigerant liquid of low-temp low-pressure is in battery bag 625 The heat that interior evaporator absorbs battery is changed into refrigerant gas, the evaporator outlet out of battery bag 625 Refrigerant gas out flows through the 6th switch valve 637 and the low temperature low pressure gas on the second following tunnels closes Stream；Second tunnel flows through indoor evaporator 602 via the second branch road 621, is inhaled by indoor evaporator 602 Thermal change is the refrigerant gas of low-temp low-pressure and collaborated with above-mentioned first via low temperature low pressure gas, behind interflow Gas enter gas-liquid separator 611, last refrigerant returns to compressor 604 by gas-liquid separator outlet Entrance, and then form a circulation.Now the flow direction of the apoplexy of HVAC assemblies 600 flows only through indoor evaporation Device 602, indoor 601 calm process of condenser, only flows 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 of the pressure-temperature sensor in 604 exit is the number of compressor exhaust temperature 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.
In this circulation, the 5th switch valve 636 and the 7th switch valve 638 are opened, and make battery heating branch Road 627 and battery are heated to reflux branch road 629 and turned on, and simultaneously close off the 4th switch valve 634 and the 6th switch Valve 637, disconnect battery cooling branch road 626 and battery cooling for reflux branch road 628.So, from compression The high temperature and high pressure gas that machine 604 comes out are divided into two-way, and the first via flows through the 5th switch valve 636 and enters electricity Pond bag 625, the refrigerant gas of HTHP heats to battery bag 625, and in battery bag 625 Evaporator heat exchange after be changed into medium temperature high pressure refrigerant liquid, the refrigerant liquid and the second following tunnels Medium temperature highly pressurised liquid collaborates；Second road flows through indoor condenser 601, is changed into by indoor condenser 601 The refrigerant liquid of medium temperature high pressure collaborates with above-mentioned first via high temperature high pressure liquid, and the liquid behind interflow enters Enter to the first expansion switch valve 603, and then form 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.
In summary, heat pump type air conditioning system provided by the invention, the feelings in refrigerant circulation direction are not being changed Under condition i.e. can be achieved automotive air-conditioning system refrigeration and heating, so as to play to battery cool down and heat work With, while and can meets in-car refrigeration and heating demands.During high-temperature refrigeration, the refrigerant liquid of low-temp low-pressure The evaporator heat absorption that body enters in battery bag is changed into gas, and realizes the refrigerating function to battery system；It is low During warm heating, the refrigerant gas of HTHP gives battery to heat into the evaporator of battery bag, realization pair The heating function of battery system.The present invention is a kind of new air-conditioning to batteries of electric automobile cooling heating Heat pump, directly being exchanged heat with air-conditioning refrigerant to battery, heat exchange efficiency is high, is not influenceed by external environment, Either under high temperature or low temperature environment, battery can be made to be operated within the scope of suitable temperature, improved The efficiency for charge-discharge of battery, endurance is improved, extend battery life, it is ensured that security.
In the above-described embodiment, the outlet of indoor evaporator 602 can be via the first check valve 624 Connected with the entrance of gas-liquid separator 611, be heated to reflux being additionally provided with the 4th list on branch road 629 in battery To valve 639.In this manner it is ensured that fluid is only capable of keeping in the loop single flow direction, backflow is avoided to make Into harm.Preferably, the 4th check valve 639 is arranged on the downstream of the 7th switch valve 638, i.e. handle Switch valve is arranged on upstream, can strengthen the control to branch road opening and closing.
Further, flow valve 633 is also provided with battery cooling branch road 626, can be to electricity The flow that pond cooling branch road 626 flows through battery bag 625 is controlled, and prevents that gas stream or liquid flow are excessive Battery bag 625 is impacted, influences its service life；It can also be set on battery cooling branch road 626 simultaneously 3rd check valve 635, correspondingly, the harm of backflow can also be avoided.
In this case, preferably, flow valve 633 is arranged on the downstream of the 4th switch valve 634, Also, the 3rd check valve 635 is arranged on the downstream of the 4th switch valve 634, can strengthen being opened and closed branch road Control.So, flow direction of the fluid on battery cooling branch road 626 is the 4th 634 → flow of switch valve 635 → the battery bag of check valve 625 of valve 633 → the 3rd.
Under low temperature heating pattern, in order to improve heating ability, it is preferable that such as Fig. 5 A and Fig. 5 B institutes Show, plate type heat exchanger 612 is provided with whole heat pump type air conditioning system, the plate type heat exchanger 612 is simultaneously It is also disposed in the electromotor cooling system of electric automobile.So, the remaining of electromotor cooling system can be utilized Heat gives air-conditioning system refrigerant heat, so as to improve the suction temperature of compressor 604 and inspiratory capacity.
For example, as shown in Figure 5A, in heat pump type air conditioning system using the 3rd expansion valve 609 and the 9th 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 9th 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 9th 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 9th 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, heating ability of the air-conditioning system under low temperature heating pattern can be improved.
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 the heating of refrigerant under high-temperature refrigeration pattern, it can be controlled using valve Whether heat exchange is carried out in plate type heat exchanger 612.Specifically, electromotor cooling system can include cooling Liquid main line 616, the first coolant branch road 617 and the second coolant branch road 618, wherein, coolant is done The first end on the road 616 optionally first end or the second coolant branch road with the first coolant branch road 617 618 first end connection.For example, in one embodiment, the first end on coolant main line 616 can Connected with the import 615a with the second triple valve 615, the first end of the first coolant branch road 617 can be with Connected with the first outlet 615b of the second triple valve 615, the first end of the second coolant branch road 618 can Connected with the second outlet 615c with the second triple valve 615, thus, by second triple valve 615, The first end on the coolant main line 616 optionally first end with the first coolant branch road 617 can be controlled Or second coolant branch road 618 first end connection.In addition, as shown in Figure 5 B, the first coolant branch Second end on road 617 connects with second end on coolant main line 616, and the second coolant branch road 618 The second end also connected with second end on coolant main line 616, wherein, gone here and there on coolant main line 616 Motor, motor radiator 613 and water pump 614 are associated with, plate is in series with the first coolant branch road 617 Formula heat exchanger 612.
So, when air-conditioning system is operated under low temperature heating pattern, now in order to improve heating ability, Need to heat refrigerant in plate type heat exchanger 612.Therefore, it is in such a case, it is possible to logical The second triple valve 615 of control is crossed so that the first coolant branch road 617 turns on, thus, in cooling system Coolant flows through plate type heat exchanger 612, at this point it is possible to realize the heat exchange with refrigerant.However, work as When system is operated under high-temperature refrigeration pattern, refrigerant need not now be entered in plate type heat exchanger 612 Row heating.Therefore, in such a case, it is possible to by controlling the second triple valve 615 second to cool down Liquid branch road 618 turns on, and thus, the coolant in cooling system is not passed through plate type heat exchanger 612, board-like The runner of heat exchanger 612 as just refrigerant flows through.
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, heat pump type air conditioning system can also include ptc heater 619, and the ptc heater 619 is used for The wind for flowing through indoor condenser 601 is heated.
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 above, in the present invention, it is to have expansion valve function and switch valve function simultaneously to expand switch valve Valve, it is the integrated of switch valve and expansion valve that can be regarded as.One kind is will be provided below to expand Close the example embodiment of 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 (27)

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), outdoor heat exchanger (605) and it is internally provided with evaporation The battery bag (625) of device, the egress selection of the indoor condenser (601) via first throttle Branch road or the first through-flow branch road connect with the entrance of the outdoor heat exchanger (605), the outdoor heat exchange Turned on via the second throttling branch road or the second through-flow branch road with selectivity the egress selection of device (605) Or cut-off tie point (620) first end connection and with the second branch road of selective on or off (621) first end connection, the second end and the compressor (604) of the tie point (620) Entrance connection, the second end of second branch road (621) and entering for the indoor evaporator (602) Mouth connection, the outlet of the indoor evaporator (602) connect with the entrance of the compressor (604), The entrance of evaporator in the battery bag (625) cools down branch via the battery of selective on or off Road (626) cools down branch road with the outlet of the outdoor heat exchanger (605) or via the battery (626) connected with the first end of the tie point (620) and the first end of the second branch road (621), And heat branch road (627) and the compressor (604) via the battery of selective on or off Outlet, the outlet of the evaporator in the battery bag (625) is via selective on or off Battery cooling for reflux branch road (628) connects with the entrance of the compressor (604), and via selection The battery of property on or off is heated to reflux the outlet of branch road (629) and the indoor condenser (601) Connection.
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 (640), 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 (640), The first outlet of first triple valve (640) connects with the first end of the tie point (620), The second outlet of first triple valve (640) 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 the first 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 the battery bag (625) The entrance of interior evaporator cools down branch road (626) and the outdoor heat exchanger (605) via the battery Outlet, and be provided with the first expansion valve (630) in battery cooling branch road (626).
7. heat pump type air conditioning system according to claim 5, it is characterised in that the battery cooling It is additionally provided with the 3rd switch valve (631) and the second check valve (632) on branch road (626), described first The entrance of expansion valve (630) passes through the 3rd switch valve (631) and the outdoor heat exchanger (605) Outlet, the outlet of first expansion valve (630) by second check valve (632) with The entrance connection of evaporator in the battery bag (625).
8. heat pump type air conditioning system according to claim 1, it is characterised in that the battery bag (625) The entrance of interior evaporator cools down branch road (626) and the tie point (620) via the battery First end and the connection of the first end of the second branch road (621), and in battery cooling branch road (626) On be provided with flow valve (633).
9. heat pump type air conditioning system according to claim 8, it is characterised in that the battery cooling The 4th switch valve (634) and the 3rd check valve (635), the flow are additionally provided with branch road (626) The entrance of valve (633) is via the of the 4th switch valve (634) and the tie point (620) The first end of one end and the second branch road (621) connects, and the outlet of the flow valve (633) is via described 3rd check valve (635) connects with the entrance of the evaporator in the battery bag (625).
10. heat pump type air conditioning system according to claim 1, it is characterised in that the battery heating The 5th switch valve (636) is provided with branch road (627).
11. heat pump type air conditioning system according to claim 1, it is characterised in that the battery cooling The 6th switch valve (637) is provided with backflow branch road (628).
12. heat pump type air conditioning system according to claim 1, it is characterised in that the battery heating The 7th switch valve (638) is provided with backflow branch road (629).
13. heat pump type air conditioning system according to claim 12, it is characterised in that the battery adds The 4th check valve (639) is additionally provided with heat backflow branch road (629).
14. heat pump type air conditioning system according to claim 1, it is characterised in that described first is through-flow The 8th switch valve (608) is provided with branch road, the second expansion valve is provided with the first throttle branch road (607)。
15. 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.
16. heat pump type air conditioning system according to claim 1, it is characterised in that described second is through-flow The 9th switch valve (610) is provided with branch road, the 3rd expansion valve is provided with the second throttling branch road (609)。
17. heat pump type air conditioning system according to claim 16, 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 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.
18. heat pump type air conditioning system according to claim 17, it is characterised in that described board-like to change The refrigerant inlet of hot device (612) and the outlet of the outdoor heat exchanger, the plate type heat exchanger (612) refrigerant outlet connects with the entrance of the 9th switch valve (610).
19. the heat pump type air conditioning system according to claim 17 or 18, 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).
20. 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.
21. heat pump type air conditioning system according to claim 20, 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.
22. heat pump type air conditioning system according to claim 21, it is characterised in that the motor is cold But system includes coolant main line (616), the first coolant branch road (617) and the second coolant branch road (618), the first end of the coolant main line (616) optionally with the first coolant branch road (617) first end or the first end connection of the second coolant branch road (618), described first is cold But the second end of liquid branch road (617) and the second end of the second coolant branch road (618) with it is described cold But the second end connection of liquid main line (616), wherein, it is in series with the coolant main line (616) Motor, motor radiator (613) and water pump (614), on the first coolant branch road (617) It is in series with the plate type heat exchanger (612).
23. 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 compression of the gas-liquid separator (611) The entrance connection of machine (604), entrance and the indoor evaporator (602) of the gas-liquid separator (611) Outlet connected with the second end of the tie point (620), and in the battery bag (625) The outlet of evaporator is via the battery cooling for reflux branch road (628) of the selective on or off and institute State the entrance connection of gas-liquid separator (611).
24. 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.
25. heat pump type air conditioning system according to claim 24, it is characterised in that the PTC adds Hot device (619) is arranged in the windward side or leeward side of the indoor condenser.
26. heat pump type air conditioning system according to claim 1, it is characterised in that the battery bag (625) Including battery bag casing and the multiple electrokinetic cells being arranged in the battery bag casing, the battery bag (625) evaporator in is arranged in the battery bag casing and closely pasted with the multiple electrokinetic cell Close.
27. a kind of electric automobile, it is characterised in that including according to any one in claim 1-26 Described heat pump type air conditioning system.
CN201610309157.1A 2016-05-10 2016-05-10 Heat pump air conditioning system and electric car Active CN107351630B (en)

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Publication number Priority date Publication date Assignee Title
US6964178B2 (en) * 2004-02-27 2005-11-15 Denso Corporation Air conditioning system for vehicle
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CN101410577A (en) * 2003-02-18 2009-04-15 贝洱两合公司 Power supply system for a motor vehicle
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CN101907332A (en) * 2009-06-03 2010-12-08 通用汽车环球科技运作公司 Water cooled condenser in the vehicle HVAC system
CN203460658U (en) * 2013-07-15 2014-03-05 上海加冷松芝汽车空调股份有限公司 Heat management system for pure electric vehicles
CN103625242A (en) * 2013-11-18 2014-03-12 华南理工大学 Thermal management system of electric automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101410577A (en) * 2003-02-18 2009-04-15 贝洱两合公司 Power supply system for a motor vehicle
US6964178B2 (en) * 2004-02-27 2005-11-15 Denso Corporation Air conditioning system for vehicle
CN101551175A (en) * 2008-04-04 2009-10-07 通用汽车环球科技运作公司 Vehicle hvac and battery thermal management
CN101279580A (en) * 2008-05-30 2008-10-08 清华大学 Residual heat pump air conditioner system for fuel-cell vehicle
CN101907332A (en) * 2009-06-03 2010-12-08 通用汽车环球科技运作公司 Water cooled condenser in the vehicle HVAC system
CN203460658U (en) * 2013-07-15 2014-03-05 上海加冷松芝汽车空调股份有限公司 Heat management system for pure electric vehicles
CN103625242A (en) * 2013-11-18 2014-03-12 华南理工大学 Thermal management system of electric automobile

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