CN107351695A - Automotive thermal tube manages system and electric automobile - Google Patents

Automotive thermal tube manages system and electric automobile Download PDF

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Publication number
CN107351695A
CN107351695A CN201610305553.7A CN201610305553A CN107351695A CN 107351695 A CN107351695 A CN 107351695A CN 201610305553 A CN201610305553 A CN 201610305553A CN 107351695 A CN107351695 A CN 107351695A
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CN
China
Prior art keywords
branch road
heat exchanger
valve
outlet
switch valve
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Granted
Application number
CN201610305553.7A
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Chinese (zh)
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CN107351695B (en
Inventor
汪孟瑛
叶梅娇
陈雪峰
黄健
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201610305553.7A priority Critical patent/CN107351695B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—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
    • B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a kind of automotive thermal tube reason system and electric automobile.Automotive thermal tube reason system includes heat pump type air conditioning system, battery bag heat-exchange system, engine-cooling system, first plate type heat exchanger and first switch valve, heat pump type air conditioning system and engine-cooling system are exchanged heat by the first plate type heat exchanger and battery bag heat-exchange system respectively, the refrigerant inlet of first plate type heat exchanger cools down the outlet of branch road and outdoor heat exchanger via the battery of on or off, or connected with the first end of the first end of tie point and the second branch road, and connected via the battery heating branch road of on or off with the entrance of first switch valve, the refrigerant outlet of first plate type heat exchanger connects via the battery cooling for reflux branch road of on or off with the entrance of compressor, and the outlet of branch road and first switch valve is heated to reflux via battery.Hereby it is achieved that in-car refrigeration and heating, are also cooled down and are heated for battery, battery is worked within the scope of suitable temperature.

Description

Automotive thermal tube manages system and electric automobile
Technical field
The present invention relates to the field of air conditioning of electric automobile, in particular it relates to a kind of automotive thermal tube reason system and Include the electric automobile of automotive thermal tube reason system.
Background technology
The battery efficiency for ensureing electric automobile is high, it is necessary to there is suitable operating temperature, it is too high or Height can all make a big impact to its performance and endurance.China Patent Publication No. is CN205039220U utility model patent discloses a kind of automobile power cell cooling system.The power Although battery cooling system can be cooled down in refrigeration by evaporator to electrokinetic cell, power electric Pond is close together with evaporator and exchanged heat, although feasible in principle, is difficult on car, because General all in air conditioning box body for evaporator, cabinet space is limited, and the electrokinetic cell of pure electric automobile is very Greatly, it is typically disposed in underbody.
The content of the invention
It is an object of the invention to provide a kind of automotive thermal tube reason system and electric automobile, to solve above-mentioned ask Topic.
To achieve these goals, according to the first aspect of the invention, there is provided a kind of automotive thermal tube manages system, Automotive thermal tube reason system include heat pump type air conditioning system, battery bag heat-exchange system, engine-cooling system, First plate type heat exchanger and first switch valve, the heat pump type air conditioning system and the engine-cooling system point Do not exchanged heat by first plate type heat exchanger and the battery bag heat-exchange system, the heat pump type air conditioning system Including indoor condenser, indoor evaporator, compressor and outdoor heat exchanger, the outlet of the compressor with The entrance connection of the indoor condenser, the outlet of the indoor condenser and entering for the first switch valve Mouthful connection, the egress selection of the first switch valve via first throttle branch road or the first through-flow branch road Connect with the entrance of the outdoor heat exchanger, saved via second the egress selection of the outdoor heat exchanger Stream branch road or the second through-flow branch road connected with the first end of the tie point of selective on or off and with Second branch road of selective on or off first end connection, the second end of the tie point with it is described The entrance connection of compressor, the second end of second branch road connect with the entrance of the indoor evaporator, The outlet of the indoor evaporator connects with the entrance of the compressor, the system of first plate type heat exchanger Cryogen entrance cools down the outlet of branch road and the outdoor heat exchanger via the battery of selective on or off Connection, or connected with the first end of the first end of the tie point and second branch road, and via The battery heating branch road of selective on or off connects with the entrance of the first switch valve, and described first Battery cooling for reflux branch road and institute of the refrigerant outlet of plate type heat exchanger via selective on or off The entrance connection of compressor is stated, and the outlet of branch road and the first switch valve is heated to reflux via battery Connection.
Alternatively, second switch valve is provided with the tie point.
Alternatively, it is provided with the 3rd 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, it is provided with the 4th switch valve on battery heating branch road.
Alternatively, it is provided with the 5th switch valve on the battery cooling for reflux branch road.
Alternatively, it is additionally provided with the first check valve on the battery cooling for reflux branch road.
Alternatively, it is heated to reflux being provided with the second check valve on branch road in the battery.
Alternatively, the refrigerant inlet of first plate type heat exchanger via selective on or off electricity Pond cools down the outlet of branch road and the outdoor heat exchanger, and is set on battery cooling branch road There is the first expansion valve.
Alternatively, the refrigerant inlet of first plate type heat exchanger via selective on or off electricity Pond cooling branch road connects with the first end of the tie point and the first end of second branch road, and Flow valve is provided with the battery cooling branch road.
Alternatively, the outlet of the indoor evaporator connects via the entrance of the 3rd check valve and the compressor It is logical.
Alternatively, first plate type heat exchanger is connected on the coolant circuit of the battery bag heat-exchange system In, and the first water connected with first plate type heat exchanger is additionally provided with the coolant circuit Pump, deputy tank and battery bag.
Alternatively, the engine-cooling system include the second water pump, engine, indoor heater cores and Second triple valve, the outlet of second water pump connect with the entrance of second triple valve, and described second The first outlet and second outlet of the triple valve engine coolant with first plate type heat exchanger respectively Entrance connection connects with the entrance of the indoor heater cores, and the engine of first plate type heat exchanger is cold But liquid outlet connects with coolant inlet of the outlet of the indoor heater cores with the engine, institute The cooling liquid outlet for stating engine connects with the entrance of second water pump.
Alternatively, the 6th 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 7th 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 automotive thermal tube reason system is applied to electric automobile, and the automotive thermal tube reason system is also Including electromotor cooling system；The heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, institute State the second plate type heat exchanger to be arranged in the described second through-flow branch road, and second plate type heat exchanger is same When be arranged in the electromotor cooling system.
Alternatively, the outlet of the refrigerant inlet of second plate type heat exchanger and the outdoor heat exchanger connects Logical, the refrigerant outlet of second plate type heat exchanger connects with the entrance of the 7th switch valve.
Alternatively, the electromotor cooling system includes connecting to form loop with second plate type heat exchanger Motor, motor radiator and the 3rd 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 described first of the second expansion switch valve The first end of branch road is connected and connected with the first end of second branch road, and the second throttling branch road is institute The throttling runner of the second expansion switch valve is stated, the second through-flow branch road is the described second expansion switch valve Through-flow runner.
Alternatively, the automotive thermal tube reason system is applied to electric automobile, and the automotive thermal tube reason system is also Including electromotor cooling system；The heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, institute State the outlet of the refrigerant inlet of the second plate type heat exchanger and the described second expansion switch valve, described the The refrigerant outlet of double-plate heat exchanger connected with the first end of the tie point and with described second The first end connection on road, and second plate type heat exchanger is arranged on the electromotor cooling system simultaneously In.
Alternatively, the electromotor cooling system includes motor coolant main line, the first motor coolant branch road With the second motor coolant branch road, the first end on the motor coolant main line is optionally with described first The first end of motor coolant branch road or the connection of the first end of the second motor coolant branch road, described the Second end of one motor coolant branch road and the second end of the second motor coolant branch road and the electricity Machine coolant main line the second end connection, wherein, be in series with the motor coolant main line motor, Motor radiator and the 3rd water pump, it is board-like on the first motor coolant branch road to be in series with described second 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 Connection, the second end of the tie point connect with the entrance of the gas-liquid separator, and described first is board-like The refrigerant outlet of heat exchanger is via the battery cooling for reflux branch road and the entrance of the gas-liquid separator Connection.
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 automotive thermal tube reason system that face provides.
Automotive thermal tube provided by the invention manages system, except heat pump type air conditioning system can be utilized to realize the in-car summer Its refrigeration and the demand of winter heating, the also function of battery cooling and battery heating.It is board-like by first Heat exchanger, heat exchange can be carried out with battery bag coolant by the refrigerant of heat pump type air conditioning system, to electricity Pond cools or heating, heat exchange can be carried out with battery bag coolant by the coolant of engine again, to electricity Pond is heated, and using the heat exchange between three kinds of media, is suitable for effective utilization to the energy under different vehicle conditions, Battery is set to be worked all the time within the scope of suitable temperature, so as to improve the efficiency for charge-discharge of battery, continuation of the journey energy Power and service life.In addition, the present invention can both realize vapour in the case where not changing refrigerant circulation direction The refrigeration of car air-conditioning system and heating, it is simple in construction so that whole system pipeline arrangement is simple, is easy to criticize Amount production.
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 structural representation that system is managed according to the automotive thermal tube of one embodiment of the present invention；
Fig. 8 is the structural representation that system is managed according to the automotive thermal tube of another embodiment of the invention；
Fig. 9 is the overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Figure 10 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port Open mode is in the second valve port；
Figure 11 is that the expansion switch valve that the preferred embodiment for the present invention provides along visual angle faces knot Structure schematic diagram；
Figure 12 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port In open mode, the second valve port is in closure state；
Figure 13 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port In closure state, the second valve port is in open mode；
Figure 14 is the facing along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides Structural representation；
Figure 15 be along the cross-sectional view crossed by Figure 14 center lines AC-AC, wherein, the first valve Mouth is in open mode, and the second valve port is in closure state；
Figure 16 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 17 is the partial enlarged drawing in A portions in Figure 16；
Figure 18 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 19 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, electric automobile mainly refers to hybrid vehicle.
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.
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 641 of selective on or off and turns on or cut with selectivity The first end connection of the second branch road 642 only, the second end of tie point 641 and entering for compressor 604 Mouth connection, the second end of the second branch road 642 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 642 of tie point 641 and second is to select according to the actual requirements Property on or off.For example, as shown in Figure 1A, second switch is provided with tie point 641 Valve 643, when second switch valve 643 is opened, tie point 641 turns on, when second switch valve 643 During closing, tie point 641 is ended.In addition, the 3rd switch valve 644 is provided with the second branch road 642, When the 3rd switch valve 644 is opened, the second branch road 642 turns on, when the 3rd switch valve 644 is closed, Second branch road 642 ends.
In another embodiment, as shown in Figure 1B, heat pump type air conditioning system can also include：One or three Port valve 645, 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 645a of the first triple valve 645, the first outlet 645b of the first triple valve 645 with The first end connection of tie point 641, the second outlet 645c and the second branch road of the first triple valve 645 642 first end connection.So, by first triple valve 645, tie point 641 can be controlled On or off, and the control on or off of the second branch road 642.
Illustratively, by control the first triple valve 645 entrance 645a- first outlets 645b conducting and Entrance 645a- second outlets 645c is not turned on, and tie point 641 can be controlled to turn on, the second branch road 642 Cut-off；And by controlling the entrance 645a- first outlets 645b of the first triple valve 645 to be not turned on, And entrance 645a- second outlets 645c is turned on, and tie point 641 can be controlled to end, the second branch road 642 Conducting.
In addition, in order to prevent that refrigerant is back in indoor evaporator 602 when tie point 641 turns on, Alternatively, as shown in FIG. 1A and 1B, the outlet of indoor evaporator 602 is via the 3rd check valve 627 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 6th switch valve 608 and the second expansion valve 607, wherein, the 6th 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, as shown in Fig. 2 room The outlet of inner condenser 601 is connected with shape via the 6th 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 second 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 6th Switch valve 608 is turned on, and the second 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, second Expansion valve 607 is turned on, and the 6th 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 641 first end connection and with the first end of the second branch road 642 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 7th switch valve 610 and the 3rd expansion valve 609, wherein, the 7th 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 7th switch valve 610 and the tie point of selective on or off 641 first end is connected and connected with the first end of the second branch road 642 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 641 first end connection and with the second branch road 642 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 7th switch valve 610 is closed.When system is under low temperature heating pattern, the 7th Switch valve 610 is turned on, and the 3rd expansion valve 609 is closed.
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 641 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 flowed out through the second end of indoor evaporator 602 or tie point 641 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.
Under heat pump low-temperature heating pattern, in order to improve heating ability, it is preferable that such as Fig. 5 A and Fig. 5 B It is shown, the second plate type heat exchanger 612, second plate-type heat-exchange are provided with whole heat pump type air conditioning system Device 612 is also disposed in the electromotor cooling system of electric automobile simultaneously.So, motor can be utilized cold But the waste heat of system 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 7th switch In the embodiment of valve 610, it is logical that the second plate type heat exchanger 612 can be arranged on second as shown in Figure 5A Flow in branch road.For example, in one embodiment, the refrigerant inlet 612a of the second plate type heat exchanger 612 With the outlet of outdoor heat exchanger 605, the refrigerant outlet 612b of the second plate type heat exchanger 612 with The entrance connection of 7th switch valve 610.Or (not shown) in another embodiment, second The refrigerant inlet 612a of plate type heat exchanger 612 can also with the outlet of the 7th switch valve 610, The refrigerant outlet 612b of second plate type heat exchanger 612 connects with the entrance of indoor evaporator 602.
At the same time, the second plate type heat exchanger 612 is arranged in electromotor cooling system simultaneously.Such as Fig. 5 A It is shown, electromotor cooling system can include connected with the second plate type heat exchanger 612 with formed the motor in loop, The water pump 614 of motor radiator 613 and the 3rd.So, refrigerant can pass through the second plate type heat exchanger 612 Heat exchange is carried out with the coolant in electromotor cooling system.Refrigerant passes through the 7th switch valve 610 and second After switch valve 643, 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 expansion switch valves 606 of the refrigerant inlet 612a of the second plate type heat exchanger 612 and second Outlet, the refrigerant outlet 612b of the second plate type heat exchanger 612 and the first of tie point 641 End is connected and connected with the first end of the second branch road 642, and the second plate type heat exchanger 612 is set simultaneously In the electromotor cooling system of electric automobile.So, refrigerant can pass through the second plate type heat exchanger 612 Heat exchange is carried out with the coolant in electromotor cooling system.Refrigerant returns after second switch valve 643 Into compressor 604.
By the second plate type heat exchanger 612, air-conditioning system can be improved under heat pump low-temperature heating pattern Heating ability.
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 under heat pump high-temperature refrigeration pattern carry out refrigerant heating, can using valve come Control whether to carry out heat exchange in the second plate type heat exchanger 612.Specifically, electromotor cooling system can be with Including motor coolant main line 616, the first motor coolant branch road 617 and the second motor coolant branch road 618, wherein, the first end on motor coolant main line 616 optionally with the first motor coolant branch road 617 first end or the connection of the first end of the second motor coolant branch road 618.For example, in an implementation In mode, the first end on motor coolant main line 616 can be with the import 615a of the 3rd triple valve 615 Connection, the first end of the first motor coolant branch road 617 can be with the first outlet of the 3rd triple valve 615 615b is connected, and the first end of the second motor coolant branch road 618 can be with the second of the 3rd triple valve 615 615c connections are exported, thus, can be with controlled motor coolant main line by the 3rd triple valve 615 616 first end optionally cools down with the first end of the first motor coolant branch road 617 or the second motor The first end connection of liquid branch road 618.In addition, as shown in Figure 5 B, the first motor coolant branch road 617 The second end connected with second end on motor coolant main line 616, and the second motor coolant branch road Second end of 618 the second end also with motor coolant main line 616 connects, wherein, in motor coolant Motor, the water pump 614 of motor radiator 613 and the 3rd are in series with main line 616, is cooled down in the first motor The second plate type heat exchanger 612 is in series with liquid branch road 617.
So, when air-conditioning system is operated under heat pump low-temperature heating pattern, now in order to improve heating energy Power in the second plate type heat exchanger 612 to refrigerant, it is necessary to heat.Therefore, in this case, Can be by controlling the motor coolant branch road 617 of the 3rd triple valve 615 first to turn on, thus, electricity Coolant in machine cooling system flows through the second plate type heat exchanger 612, at this point it is possible to realize and refrigerant Heat exchange.However, when system is operated under heat pump high-temperature refrigeration pattern, now need not be second Refrigerant is heated in plate type heat exchanger 612.Therefore, in such a case, it is possible to pass through control 3rd triple valve 615 causes the second motor coolant branch road 618 to turn on, thus, in electromotor cooling system Coolant be not passed through the second plate type heat exchanger 612, the second plate type heat exchanger 612 is as just refrigerant Runner flow 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, 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.
Fig. 7 is the structural representation that system is managed according to a kind of automotive thermal tube of embodiment of invention.Such as figure Shown in 7, the system can include heat pump type air conditioning system described above, battery bag heat-exchange system, hair Motivation cooling system and the first plate type heat exchanger 620, wherein, heat pump type air conditioning system and engine cool system System is exchanged heat by the first plate type heat exchanger 620 with battery bag heat-exchange system respectively.In the present invention, first Plate type heat exchanger 620 is three ply board formula heat exchanger.So-called " three ply board formula heat exchanger " refers to be internally formed There is the plate type heat exchanger of three heat exchanger channels, wherein, flowing is heat pump air conditioner system in a heat exchanger channels The refrigerant of system, the interior flowing of a heat exchanger channels is battery coolant, is flowed in a heat exchanger channels It is engine coolant.As shown in fig. 7, automotive thermal tube reason system also includes first switch valve 635, its In, the outlet of indoor condenser 601 connects with the entrance of first switch valve 635, first switch valve 635 Egress selection via first throttle branch road or the first through-flow branch road and outdoor heat exchanger 605 entrance Connection.Specifically as shown in fig. 7, the outlet of first switch valve 635 can be via the first expansion switch valve 603 Connected with the entrance of outdoor heat exchanger 605.In addition, the refrigerant inlet 620a of the first plate type heat exchanger 620 The outlet of branch road 621 and outdoor heat exchanger 605 is cooled down via the battery of selective on or off, Or cool down first of branch road 621 and selective on or off via the battery of selective on or off The first end on road 641 is connected and connected with the first end of the second branch road 642 of selective on or off. In addition, the refrigerant inlet 620a of the first plate type heat exchanger 620 is also via selective on or off Battery heating branch road 636 connects with the entrance of first switch valve 635, the system of the first plate type heat exchanger 620 Cryogen exports battery cooling for reflux branch road 622 and compressor 604 of the 620b via selective on or off Entrance connection, and be heated to reflux via battery the outlet of branch road 637 and first switch valve 635.
In the present invention, add by battery cooling branch road 621, the first plate type heat exchanger 620 and battery It is that cooling for reflux branch road 622 collectively constitutes and that indoor evaporator 602 is in parallel to be used for battery cooling Refrigerant diverter branch, so, when under heat pump high-temperature refrigeration pattern, refrigerant is segmented into two strands： Wherein one refrigerant flow direction indoor evaporator 602, and evaporated indoors in evaporator 602, absorption chamber Interior amount of heat, reduce indoor temperature；Another strand of the first plate type heat exchanger of refrigerant flow direction 620, and lead to The first plate type heat exchanger 620 is crossed to carry out with the coolant in the battery coolant circuit of battery bag heat-exchange system Heat exchange, absorbs the heat of coolant, and then can realize the cooling to battery bag.
In the present invention, the refrigerant inlet 620a of the first plate type heat exchanger 620 connected mode has two Kind pattern：In one embodiment, as shown in fig. 7, the refrigerant of the first plate type heat exchanger 620 enters Mouth 620a can cool down branch road 621 and outdoor heat exchanger 605 via the battery of selective on or off Outlet.Specifically, first expansion valve 623 can be set on battery cooling branch road 621.This Sample, by opening or closing the first expansion valve 623 refrigerant can be controlled whether according to the actual requirements Enough flow into the refrigerant inlet 620a of the first plate type heat exchanger 620.That is, battery cooling branch road is controlled 621 be in the conduction state, is in cut-off state.
In this embodiment, under heat pump high-temperature refrigeration pattern, come out from outdoor heat exchanger 605 The refrigerant of medium temperature high pressure is directly divided into two strands：One flows to the second expansion switch valve 606；Another plume To the first expansion valve 623.In other words, now refrigerant is carried out respectively on every branch road again after shunting The decrease temperature and pressure that throttles.
In another embodiment, as shown in figure 8, the refrigerant inlet of the first plate type heat exchanger 620 620a via the battery of selective on or off cool down branch road 621 and tie point 641 first end and The first end connection of second branch road 642, and it is provided with flow valve 625 on battery cooling branch road 621. Specifically in the embodiment shown in Fig. 8, the outlet of outdoor heat exchanger 605 is via the second expansion switch valve 606 connect with the first end of the tie point 641 of selective on or off, turn on or cut with selectivity The first end connection of the second branch road 642 only, and cool down branch via the battery of selective on or off Road 621 connects with the refrigerant inlet 620a of the first plate type heat exchanger 620.
So, by controlling flow valve 625 refrigerant can be controlled whether can to flow into first board-like The refrigerant inlet 620a of heat exchanger 620, i.e. control battery cooling branch road 621 be it is in the conduction state, It is in cut-off state.In addition, it is board-like to control flow valve 625 to regulate and control refrigerant inflow first The size of the flow of heat exchanger 620.
In this embodiment, under heat pump high-temperature refrigeration pattern, come out from outdoor heat exchanger 605 The refrigerant of medium temperature high pressure is divided into two strands after the throttling of the second expansion switch valve 606：One flows to Three switch valves 644 (now, second switch valve 643 is closed), another plume is to flow valve 625, with reality The distribution of the flow proportional of existing two strands of refrigerants.In other words, now, refrigerant is first to be carried out on main line Then throttling decrease temperature and pressure is shunted again.
In order to prevent under heat pump low-temperature heating pattern, the refrigerant of low-temp low-pressure is back to first and board-like changed In hot device 620, the first check valve 626 is provided with battery cooling for reflux branch road 622.That is, first Check valve 626 can only uniaxially allow refrigerant from the refrigerant outlet 620b of the first plate type heat exchanger 620 The entrance of compressor 604 is flowed to, and can not be flowed round about.
During in order to prevent from only cooling down battery bag, the refrigerant of low-temp low-pressure is back to indoor evaporation In device 602, the outlet of indoor evaporator 602 can be via the 3rd check valve 627 and compressor 604 Entrance connects.That is, the 3rd check valve 627 can only uniaxially allow refrigerant from indoor evaporator 602 Outlet flows to the entrance of compressor 604, and can not flow round about.
Return now in the structural representation of the automotive thermal tube reason system shown in Fig. 7.As shown in fig. 7, the The refrigerant inlet 620a of one plate type heat exchanger 620 heats branch via the battery of selective on or off Road 636 connects with the entrance of first switch valve 635, the refrigerant outlet of the first plate type heat exchanger 620 620b is heated to reflux the outlet of branch road 637 and first switch valve 635 via battery.
In the present invention, increase between the outlet of condenser 601 indoors and the first expansion switch valve 603 First switch valve 635, and increase and be respectively communicated with the refrigerant inlet to the first plate type heat exchanger 620 620a and refrigerant outlet 620b battery heat branch road 636 and battery is heated to reflux branch road 637, and Battery heating branch road 636, the first plate type heat exchanger 620 and battery are heated to reflux branch road 637 and collectively constituted The refrigerant diverter branch being used for battery heating being in parallel with first switch valve 635.So, when low When warm heating is added under battery-heated model, the refrigerant of the HTHP come out from compressor 604 can be with It is divided into two strands：The entrance of condenser 601 wherein in one refrigerant flow direction room, heat release is condensed, raise room Interior environment temperature, the liquid refrigerant for medium temperature high pressure come out from indoor condenser 601, indoor condensation The outlet of device 601 is connected with the entrance of first switch valve 635, and another strand of refrigerant flow direction first is board-like to be changed Hot device 620, and pass through the battery coolant circuit of the first plate type heat exchanger 620 and battery bag heat-exchange system In coolant exchanged heat, condense heat release, the heat of coolant absorption refrigeration agent release, and then can be with Realize the heat temperature raising to battery bag.
Battery heating branch road whether is flowed through for ease of control refrigerant, is set on battery heating branch road 636 There is the 4th switch valve 638.So, when needing to heat battery, for example, in battery heated mould Under formula, the 4th switch valve 638 can be opened, now, refrigerant can flow through the first plate type heat exchanger 620, Heat is provided and gives battery bag heat-exchange system.When that need not be heated to battery, for example, cold in battery But under pattern, the 4th switch valve 638 can be closed, prevents that the refrigerant of HTHP is board-like into first Heat exchanger 620 carries out heat temperature raising to battery, and causing the temperature of battery further increases.
To prevent under battery-heated model, from the refrigerant outlet 620b of the first plate type heat exchanger 620 The liquid refrigerant of cryogenic high pressure out flows directly into compressor 604, causes the infringement to compressor, The 5th switch valve 639 is provided with battery cooling for reflux branch road 622.So, when system adds in battery When under heat pattern, the 5th switch valve 639 can be closed, now, battery cooling for reflux branch road 622 ends, So that the liquid refrigeration from the refrigerant outlet 620b of the first plate type heat exchanger 620 cryogenic high pressures come out Agent is all heated to reflux branch road 637 via battery and flows to the first expansion switch valve 603.
To prevent under battery refrigerating mode, the gas system of the HTHP come out from indoor condenser 601 Cryogen, after first switch valve 635, it is heated to reflux branch road 637 along battery and flows to first board-like changing The refrigerant outlet 620b of hot device 620, it is heated to reflux being provided with the second check valve on branch road 637 in battery 640.That is, the second check valve 640 can uniaxially allow refrigerant from the first plate type heat exchanger 620 Refrigerant outlet 620b flows to the entrance of the first expansion switch valve 603, and can not flow in opposite direction.
In addition, as shown in Figure 7 and Figure 8, the first plate type heat exchanger 620 is connected on battery bag heat-exchange system Coolant circuit in, and be additionally provided with the coolant circuit and connected with the first plate type heat exchanger 620 The first water pump 628, deputy tank 629 and battery bag 630, wherein, battery coolant can be via Battery coolant inlet 620f the first plate type heat exchangers 620 of inflow of one plate type heat exchanger 620, and via The battery cooling liquid outlet 620e of first plate type heat exchanger 620 flows out the first plate type heat exchanger 620.Work as electricity When pond cooling branch road 621 turns on, the refrigerant of heat pump type air conditioning system can be via the first plate type heat exchanger 620 refrigerant inlet 620a flows into the first plate type heat exchanger 620, and via the first plate type heat exchanger 620 Refrigerant outlet 620b flow out the first plate type heat exchanger 620.So, the first plate type heat exchanger is passed through 620, it is possible to achieve refrigerant and the heat exchange of battery coolant, so as to be cooled down for battery bag. When battery heating branch road 636 turns on, the refrigerant of heat pump type air conditioning system can be via the first plate-type heat-exchange The refrigerant inlet 620a of device 620 flows into the first plate type heat exchanger 620, and via the first plate type heat exchanger 620 refrigerant outlet 620b flows out the first plate type heat exchanger 620.So, the first plate-type heat-exchange is passed through Device 620, it is possible to achieve refrigerant and the heat exchange of battery coolant, risen so as to carry out heating for battery bag Temperature.
As described above, to prevent liquid refrigerant enters compressor 604 from damaging compressor 604, from And the service life of compressor 604 can be extended, and the efficiency of whole heat pump type air conditioning system is improved, in heat Gas-liquid separator 611 is provided with pump air conditioner system.As shown in Figure 7 and Figure 8, gas-liquid separator 611 Entrance connect except the outlet with indoor evaporator 602 and with the second end of tie point 641 Outside logical, the refrigerant outlet 620b of the first plate type heat exchanger 620 is also via battery cooling for reflux branch road 622 connect with the entrance of gas-liquid separator 611.In other words, come out from the first plate type heat exchanger 620 Refrigerant can also first pass around gas-liquid separator 611 and carry out gas-liquid separation, and the gas isolated flows back again Into compressor 604, compressor 604 is damaged so as to prevent liquid refrigerant from entering compressor 604.
In addition, as shown in Figure 7 and Figure 8, engine-cooling system includes the second water pump 631, engine 632nd, the indoor triple valve 634 of heater cores 633 and second, wherein, the outlet of the second water pump 631 and institute State the entrance 634a connections of the second triple valve 634, the first outlet 634b of the second triple valve 634 and the Two outlet 634c are connected respectively with the engine coolant entrance 620c of the first plate type heat exchanger 620 and room The entrance connection of interior heater cores 633, the engine coolant outlet 620d of the first plate type heat exchanger 620 Coolant inlet of the outlet with engine 632 with indoor heater cores 633 connects, engine 632 Cooling liquid outlet connected with the entrance of the second water pump 631.
When opening the second water pump 631, the entrance 634a and the second triple valve of the second triple valve 634 are turned on During 634 first outlet 634b, engine coolant can start via the first plate type heat exchanger 620 Machine coolant inlet 620c flows into the first plate type heat exchanger 620, and via the first plate type heat exchanger 620 Engine coolant outlet 620d flow out the first plate type heat exchanger 620.So, engine can be utilized 632 waste heat is that battery bag is heated.Further, it is also possible to by turning on entering for the second triple valve 634 Mouth 634a and the second triple valve 634 second outlet 634c so that engine coolant flows into indoor warm Wind core body 633, heated so as to realize using engine exhaust heat to be in-car.
Below system will be managed in different works automotive thermal tube provided by the invention is described in detail by taking Fig. 7 as an example Cyclic process and principle under operation mode.It should be appreciated that other embodiment is (for example, Fig. 8 institutes The embodiment shown) under system circulation process and principle to Fig. 7 be it is similar, herein just no longer one by one Repeat.
Pattern one：Heat pump high-temperature refrigeration circulation pattern.System be in system in this mode when, Whole system forms a high-temperature refrigeration circulatory system.As shown in fig. 7, first, compressor 604 passes through The gas of compression discharge HTHP, is connected with indoor condenser 601.Now, wind is controlled without room Inner condenser 601, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, The indoor condenser 601 only uses as runner, now from indoor condenser 601 come out be still high temperature The gas of high pressure.Indoor condenser 601 exports expands switch valve 603 via first switch valve 635 and first It is connected, now the first expansion switch valve 603 plays switch valve action, is only flowed through as runner, now from the What one expansion switch valve 603 came out is still the gas of HTHP.First expansion switch valve 603 outlet with Outdoor heat exchanger 605 is connected, and outdoor heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air In, from the liquid for medium temperature high pressure of outdoor heat exchanger 605 out.Outdoor heat exchanger 605 exports and the Two expansion switch valves 606 are connected, and now the second expansion switch valve 606 plays expansion valve action, as throttling Element plays throttling action, its out for low temperature and low pressure liquid.The second expansion aperture of switch valve 606 can To give certain aperture according to the actual requirements, this aperture can be according to installed in indoor evaporator 602 The pressure and temperature collection number of pressure-temperature sensor between outlet and the entrance of gas-liquid separator 611 Adjusted according to Refrigerant Superheat at Evaporator Outlet is calculated.Second switch valve 643 is closed, the 3rd switch valve 644 are opened, and so, tie point 641 is ended, and the second branch road 642 turns on.From the second expansion switch The low temperature and low pressure liquid that valve 606 comes out, which is got in evaporator 602, to be evaporated, heat in absorption chamber, Reduce indoor temperature so that the gas for low-temp low-pressure come out from indoor evaporator 602.Indoor evaporation Device 602 is connected via the 3rd check valve 627 with gas-liquid separator 611, and the liquid not being evaporated is passed through Gas-liquid separator 611 is separated, and the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed one Individual circulation.Now the apoplexy of HVAC assemblies 600 flows only through indoor evaporator 602, indoor condenser 601 Calm process, only flows through as refrigerant flow path.Also, in this mode, the first expansion valve 623 closes Close, the first water pump 628 is closed, and the second water pump 631 is closed, and the second triple valve 634 powers off, i.e. close Close, first switch valve 635 is opened, and the 4th switch valve 638 is closed.
Pattern two：Battery cools down circulation pattern.As shown in fig. 7, first, compressor 604 is through overcompression The gas of HTHP is discharged, is connected with indoor condenser 601.Now, wind is controlled without indoor cold Condenser 601, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, should Indoor condenser 601 only uses as runner, is now come out from indoor condenser 601 high still for high temperature The gas of pressure.Indoor condenser 601 exports expands switch valve 603 via first switch valve 635 and first It is connected, now the first expansion switch valve 603 plays switch valve action, is only flowed through as runner, now from the What one expansion switch valve 603 came out is still the gas of HTHP.First expansion switch valve 603 outlet with Outdoor heat exchanger 605 is connected, and outdoor heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air In, from the liquid for medium temperature high pressure of outdoor heat exchanger 605 out.Outdoor heat exchanger 605 exports and the One expansion valve 623 is connected, and cools by the throttling of the first expansion valve 623, goes out from the first expansion valve 623 Come for low temperature and low pressure liquid.The aperture of first expansion valve 623 can give certain open according to the actual requirements Degree, this aperture can be according to the refrigerant outlet 620b and gas-liquid installed in the first plate type heat exchanger 620 The pressure and temperature gathered data of pressure-temperature sensor between the entrance of separator 611 is adjusted.The The outlet of one expansion valve 623 is connected with the refrigerant inlet 620a of the first plate type heat exchanger 620, and low temperature is low Hot water of the press liquid with being come out from battery bag 630 in the first plate type heat exchanger 620 carries out heat exchange, makes The refrigerant outlet 620b for obtaining the first plate type heat exchanger 620 is the gas of low-temp low-pressure.First board-like changes The refrigerant outlet 620b of hot device 620 is connected with the 5th switch valve 639, the 5th switch valve 639 and One check valve 622 is connected, and the gas of low-temp low-pressure passes through the 5th switch valve 639 and the first check valve 622 Enter gas-liquid separator 611 afterwards, the liquid not being evaporated is separated by gas-liquid separator 611, finally The gas of low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.Now indoor condenser 601 Calm process, only flows through as refrigerant flow path.Also, in this mode, the first expansion valve 623 is beaten To open, the second expansion switch valve 606 is closed, and the first water pump 628 is opened, and the second water pump 631 is closed, the Two triple valves 634 are powered off, and first switch valve 635 is opened, and the 4th switch valve 638 is closed, the 5th switch Valve 639 is opened.
Pattern three：Heat pump high-temperature refrigeration power-up pond cooling circulation pattern.As shown in fig. 7, first, compression Machine 604 discharges the gas of HTHP through overcompression, is connected with indoor condenser 601.Now, control Wind, therefore, indoors will not in condenser 601 due to calm process without indoor condenser 601 Heat exchange is carried out, the indoor condenser 601 is only used as runner, now gone out from indoor condenser 601 What is come is still the gas of HTHP.Indoor condenser 601 is exported via first switch valve 635 and first Expand switch valve 603 to be connected, now the first expansion switch valve 603 plays switch valve action, only as runner Flow through, now from first expansion switch valve 603 come out still be HTHP gas.First expands The outlet of valve 603 is closed with outdoor heat exchanger 605 to be connected, outdoor heat exchanger 605 exchanges heat with outdoor air, Heat is dispersed into air, the liquid for medium temperature high pressure come out from outdoor heat exchanger 605.Outdoor heat exchange Device 605 exports to be connected with the second expansion expansion valve 623 of switch valve 606 and first respectively, now, from room The liquid for the medium temperature high pressure that external heat exchanger 605 comes out is divided into two strands：One flows to the second expansion switch valve 606 entrance, now, second expansion switch valve 606 rise expansion valve action it is identical, as restricting element Play throttling action, its out for low temperature and low pressure liquid.The aperture of second expansion switch valve 606 can be with Certain aperture is given according to the actual requirements, and this aperture can be according to going out installed in indoor evaporator 602 The pressure and temperature gathered data of pressure-temperature sensor between mouth and the entrance of gas-liquid separator 611 Refrigerant Superheat at Evaporator Outlet is calculated to adjust.Second switch valve 643 is closed, the 3rd switch valve 644 Open, so, tie point 641 is ended, and the second branch road 642 turns on.From the second expansion switch valve 606 Low temperature and low pressure liquid out gets in evaporator 602 and is evaporated, heat in absorption chamber, reduces Indoor temperature so that the gas for low-temp low-pressure come out from indoor evaporator 602.Another plume is to The entrance of one expansion valve 623, the aperture of the first expansion valve 623 can be given certain according to the actual requirements Aperture, the refrigerant outlet 620b and gas-liquid separation that this aperture can be according to the first plate type heat exchanger 620 The pressure and temperature gathered data of pressure-temperature sensor between the entrance of device 611 is adjusted.By The throttling cooling of one expansion valve 623, from the first expansion valve 623 come out for low temperature and low pressure liquid.First The outlet of expansion valve 623 is connected with the refrigerant inlet 620a of the first plate type heat exchanger 620, low-temp low-pressure Hot water of the liquid with being come out from battery bag 630 in the first plate type heat exchanger 620 carries out heat exchange so that The refrigerant outlet 620b of first plate type heat exchanger 620 is the gas of low-temp low-pressure.Indoor evaporator 602 Outlet be connected via the 3rd check valve 627 with gas-liquid separator 611, the first plate type heat exchanger 620 Refrigerant outlet 620b is connected with the 5th switch valve 639, the 5th switch valve 639 and the first check valve 622 It is connected, the gas for the low-temp low-pressure that the refrigerant outlet 620b of the first plate type heat exchanger 620 comes out passes through The low-temp low-pressure come out after 5th switch valve 639 and the first check valve 622 and from indoor evaporator 602 Gas is converged, and enters gas-liquid separator 611, and the liquid not being evaporated is passed through gas-liquid separator 611 separation, the gas of last low-temp low-pressure are returned in compressor 604, are consequently formed a circulation.This When the apoplexy of HVAC assemblies 600 flow only through indoor evaporator 602, indoor 601 calm process of condenser, Only flowed through as refrigerant flow path.Also, in this mode, the first expansion valve 623 is opened, and second is swollen Swollen switch valve 606 is opened, and the first water pump 628 is opened, and the second water pump 631 is closed, the second triple valve 634 Power-off, first switch valve 635 are opened, and the 4th switch valve 638 is closed, and the 5th switch valve 639 is opened.
Pattern four：Heat pump low-temperature heating circulation pattern.As shown in fig. 7, first, compressor 604 passes through The gas of compression discharge HTHP, is connected, the gas of HTHP is indoors with indoor condenser 601 Condensed in condenser 601, to indoor release heat, indoor temperature rise so that from indoor condensation The liquid for medium temperature high pressure that device 601 comes out.Indoor condenser 601 is exported via first switch valve 635 It is connected with the first expansion switch valve 603, now the first expansion switch valve 603 plays expansion valve, makees Throttling action is played for restricting element, its liquid for low-temp low-pressure come out.Wherein, first expand Certain aperture can be given according to the actual requirements by closing the aperture of valve 603, this aperture can according to installed in Temperature acquisition data (the i.e. compressor air-discharging temperature of the pressure-temperature sensor in the exit of compressor 604 Degree) number adjust.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor Heat exchanger 605 absorbs the heat of outdoor air, the gas for low-temp low-pressure come out from outdoor heat exchanger 605 Body.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, now the second expansion switch valve 606 play switch valve, are only flowed through as a runner.Second switch valve 643 is opened, and the 3rd opens Close valve 644 to close, so, tie point 641 turns on, and the second branch road 642 ends.From the second expansion The gas for the low-temp low-pressure that switch valve 606 comes out is directly entered gas-liquid separator 611, what is be not evaporated Liquid is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, by This forms a circulation.Now, in this mode, the first expansion valve 623 is closed, the first water pump 628 To close, the second water pump 631 is closed, and the second triple valve 634 is powered off, and first switch valve 635 is opened, the Four switch valves 638 are closed.
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 641 is turned on, cuts Only the second branch road 642 so that indoor evaporator 602 is shorted, even distinguished and admirable through indoor evaporator 602, Refrigerant temperature is also unaffected.
Pattern five：Engine low temperature heats circulation pattern.As shown in fig. 7, come out from engine 632 High temperature coolant passes through the second water pump 631, the entrance 634a- of the second triple valve 634 exports 634c, again Coolant of the heat exchange cooling for low temperature is carried out by indoor heater cores 633 and air, then flow back into hair In motivation 632, a circulation is thus completed.In this mode, compressor 604, first switch valve 635, 4th switch valve 638, the 5th switch valve 639, first expansion switch valve 603, second expand switch valve 606th, the first expansion valve 623, second switch valve 643, the 3rd switch valve 644 be all in off-position, First water pump 628 is closed, and the second water pump 631 is run, the entrance 634a- outlets of the second triple valve 634 634c leads to, and entrance 634a- outlets 634b is obstructed.
Pattern six：Heat pump mode battery heat cycles pattern.As shown in fig. 7, compressor 604 is through overvoltage Indent out the gas of HTHP, be connected with indoor condenser 601, now, control wind is without interior Condenser 601, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, The indoor condenser 601 only uses as runner, now from indoor condenser 601 come out be still high temperature The gas of high pressure.The indoor outlet of condenser 601 is connected with the 4th switch valve 638, the 4th switch valve 638 It is connected with the refrigerant inlet 620a of the first plate type heat exchanger 620, from the outflow of indoor condenser 601 Cold water of the gas of HTHP with being come out from battery bag 630 in the first plate type heat exchanger 620 carries out heat Exchange, the refrigerant outlet 620b of the first plate type heat exchanger 620 is the liquid refrigerant of medium temperature high pressure. The refrigerant outlet 620b of first plate type heat exchanger 620 passes through the second check valve 640 and first switch valve 635 outlet is connected, and the outlet of first switch valve 635 is connected with the entrance of the first expansion switch valve 603. Now the first expansion switch valve 603 plays expansion valve, and throttling action is played as restricting element, its The liquid for low-temp low-pressure out.Wherein, the aperture of the first expansion switch valve 603 can be according to reality Demand gives certain aperture, this aperture can according to the pressure installed in the exit of compressor 604- The number of the temperature acquisition data (i.e. compressor exhaust temperature) of temperature sensor is adjusted.First expansion The outlet of switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 absorbs the heat of outdoor air Amount, the gas for low-temp low-pressure come out from outdoor heat exchanger 605.Outdoor heat exchanger 605 exports and the Two expansion switch valves 606 are connected, and now the second expansion switch valve 606 plays switch valve, only conduct One runner flows through.Second switch valve 643 is opened, and the 3rd switch valve 644 is closed, so, first Road 641 turns on, and the second branch road 642 ends.The low-temp low-pressure come out from the second expansion switch valve 606 Gas is directly entered gas-liquid separator 611, and the liquid not being evaporated is separated by gas-liquid separator 611, The gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.It is board-like by first Heat exchanger 620, it can be heated using the refrigerant of heat pump type air conditioning system for battery bag, raise battery The temperature of bag.Now in HVAC assemblies 600, wind does not flow to indoor condenser 601 and indoor evaporation Device 602, only flows through as refrigerant flow path.Also, in this mode, first switch valve 635 is closed, 4th switch valve 638 is opened, and the first expansion valve 623 is closed, the second expansion switch valve 606 Open, the first water pump 628 is opened, and the second water pump 631 is closed, and the second triple valve 634 powers off.
Pattern seven：Engine mode battery heat cycles pattern.As shown in fig. 7, go out from engine 632 The high temperature coolant come exports 634b by the entrance 634a- of the second water pump 631, the second triple valve 634, The first plate type heat exchanger 620 is flowed to, it is low temperature to carry out heat exchange cooling with the cold water that battery bag 630 comes out Coolant, then flow back into engine 632, thus complete engine mode battery and heat a circulation. By the first plate type heat exchanger 620, it can be that battery bag is heated using engine coolant, raise The temperature of battery bag.In this mode, compressor 604, first switch valve 635, the 4th switch valve 638, 5th switch valve 639, first expansion switch valve 603, second expands switch valve 606, the first expansion valve 623rd, second switch valve 643, the 3rd switch valve 644 are run all in off-position, the first water pump 628, Second water pump 631 is run, and the entrance 634a- outlets 634b of the second triple valve 634 leads to, entrance 634a- It is obstructed to export 634c.
Pattern eight：Heat pump mode low-temperature heating powers up pond heat cycles pattern.As shown in fig. 7, first, Compressor 604 discharges the gas of HTHP through overcompression, is connected with indoor condenser 601, and high temperature is high The gas of pressure is condensed in condenser 601 indoors so that is from what indoor condenser 601 came out The liquid of warm high pressure.Now, the liquid of the medium temperature high pressure come out from indoor condenser 601 is divided into two strands： One flows into the first plate type heat exchanger 620 by the 4th switch valve 638, in the first plate type heat exchanger 620 Place carries out heat exchange with the cold water come out from battery bag 630, and the refrigerant of the first plate type heat exchanger 620 goes out Mouthful 620b is the liquid refrigerant of medium temperature high pressure, the refrigerant outlet 620b of the first plate type heat exchanger 620 It is connected by the second check valve 640 with the outlet of first switch valve 635.Another stock then passes through first switch After valve 635, converge with the liquid refrigerant of the medium temperature high pressure of the outlet from the second check valve 640 out, And flow into the entrance of the first expansion switch valve 603.Now the first expansion switch valve 603 plays expansion valve Effect, throttling action is played as restricting element, its liquid for low-temp low-pressure come out.Wherein, The aperture of one expansion switch valve 603 can give certain aperture according to the actual requirements, and this aperture can root (compressed according to the temperature acquisition data of the pressure-temperature sensor installed in the exit of compressor 604 Machine delivery temperature) number adjust.First expansion switch valve 603 outlet and the phase of outdoor heat exchanger 605 Even, outdoor heat exchanger 605 absorbs the heat of outdoor air, from outdoor heat exchanger 605 come out for low temperature The gas of low pressure.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, and now second is swollen Swollen switch valve 606 plays switch valve, is only flowed through as a runner.Second switch valve 643 is opened, 3rd switch valve 644 is closed, and so, tie point 641 turns on, and the second branch road 642 ends.From The gases of low-temp low-pressure that two expansion switch valves 606 come out are directly entered gas-liquid separator 611, not steaming The liquid distributed is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to compressor 604 In, it is consequently formed a circulation.By the first plate type heat exchanger 620, heat pump type air conditioning system can be utilized Refrigerant heated for battery bag, raise the temperature of battery bag.Now, in this mode, the 4th Switch valve 638 is opened, and first switch valve 635 is in open mode, and the first expansion valve 623, which is in, closes State, the 5th switch valve 639 are closed, and the first water pump 628 is opened, and the second water pump 631 is closed, and second Triple valve 634 powers off.
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 641 is turned on, cuts Only the second branch road 642 so that indoor evaporator 602 is shorted, even distinguished and admirable through indoor evaporator 602, Refrigerant temperature is also unaffected.
Pattern nine：Engine mode low-temperature heating powers up pond heat cycles pattern.As shown in fig. 7, from hair The high temperature coolant that motivation 632 comes out punishes stream by the second water pump 631, in the second triple valve 634, 634b is exported to the first plate type heat exchanger 620 by the entrance 634a- of the second triple valve 634 all the way, with The cold water that battery bag 630 comes out carries out coolant of the heat exchange cooling for low temperature, and another way passes through the two or three The entrance 634a- of port valve 634 exports 634c and carries out heat exchange cooling to indoor heater cores 633 and air For the coolant of low temperature, 620d and interior are exported from the engine coolant of the first plate type heat exchanger 620 The refrigerant that heater cores 633 flow out is flow back into engine 632 together again, is thus completed one and is started Machine mode low temperature heating power-up pond heat cycles.By the first plate type heat exchanger 620, it can utilize and start Machine coolant is that battery bag is heated, and raises the temperature of battery bag.In this mode, compressor 604, First switch valve 635, the 4th switch valve 638, the 5th switch valve 639, first expansion switch valve 603, Second expansion switch valve 606, the first expansion valve 623, second switch valve 643, the 3rd switch valve 644 All in off-position, the first water pump 628 is run, and the second water pump 631 is run, the second triple valve 634 Entrance 634a- outlet 634b lead to, entrance 634a- outlet 634c lead to.
Automotive thermal tube provided by the invention manages system, except heat pump type air conditioning system can be utilized to realize the in-car summer Its refrigeration and the demand of winter heating, the also function of battery cooling and battery heating.It is board-like by first Heat exchanger, heat exchange can be carried out with battery bag coolant by the refrigerant of heat pump type air conditioning system, to electricity Pond cools or heating, heat exchange can be carried out with battery bag coolant by the coolant of engine again, to electricity Pond is heated, and using the heat exchange between three kinds of media, is suitable for effective utilization to the energy under different vehicle conditions, Battery is set to be worked all the time within the scope of suitable temperature, so as to improve the efficiency for charge-discharge of battery, continuation of the journey energy Power and service life.In addition, the present invention can both realize vapour in the case where not changing refrigerant circulation direction The refrigeration of car air-conditioning system and heating, it is simple in construction so that whole system pipeline arrangement is simple, is easy to criticize Amount production.
As described above, in invention, expansion switch valve is that have expansion valve function and switch valve function simultaneously Valve, it is the integrated of switch valve and expansion valve that can be regarded as.It will be provided below a kind of expansion The example embodiment of switch valve.
As shown in figure 9, 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. 9 to Figure 14, 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 Fig. 9 to Figure 12, 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 13, 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 16 to Figure 19, import 501 It is opened in mutual vertically on valve body 500 with outlet 502.So, as shown in Figure 16 to Figure 18, 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 12 and Figure 13, 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 15, 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 12 and Figure 13, 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 12, 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 13, 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 12, Tu15He Shown in Figure 18, 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 12 and Figure 18 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 13 and Figure 19, 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 13 and Figure 19 represents refrigerant using electronics Flow route and trend during expansion valve function.
When needing simultaneously using the magnetic valve function and electric expansion valve function that expand switch valve, such as scheme 10th, shown in Figure 16 and Figure 17, wherein, dotted line with the arrow represents the glide path of refrigerant and walked To the first valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, restriction 505 are in open mode, and the refrigerant for flowing into inner flow passage can be respectively along first flow 506 and Two runners 507 flow direction outlet 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 automotive thermal tube reason system provided by the invention System.Wherein, the electric automobile can be hybrid vehicle.
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 (26)

1. a kind of automotive thermal tube manages system, it is characterised in that the automotive thermal tube reason system includes heat pump Air-conditioning system, battery bag heat-exchange system, engine-cooling system, the first plate type heat exchanger (620) and First switch valve (635), the heat pump type air conditioning system and the engine-cooling system are respectively by described First plate type heat exchanger (620) exchanges heat with the battery bag heat-exchange system, the heat pump type air conditioning system bag Indoor condenser (601), indoor evaporator (602), compressor (604) and outdoor heat exchanger (605) are included, The outlet of the compressor (604) connects with the entrance of the indoor condenser (601), the interior The outlet of condenser (601) connects with the entrance of the first switch valve (635), the first switch Changed via first throttle branch road or the first through-flow branch road with the outdoor egress selection of valve (635) Hot device (605) entrance connection, the egress selection of the outdoor heat exchanger (605) via second Throttle branch road or the second through-flow branch road and the first end of the tie point (641) of selective on or off Connect and connected with the first end of the second branch road (642) of selective on or off, described first Second end on road (641) connects with the entrance of the compressor (604), second branch road (642) The second end connected with the entrance of the indoor evaporator (602), the indoor evaporator (602) Outlet connects with the entrance of the compressor (604), the refrigeration of first plate type heat exchanger (620) Agent entrance (620a) cools down branch road (621) and the outdoor via the battery of selective on or off The outlet of heat exchanger (605), or with the first end of the tie point (641) and described second The first end connection of branch road (642), and heat branch road (636) via the battery of selective on or off Connected with the entrance of the first switch valve (635), the refrigeration of first plate type heat exchanger (620) Agent export (620b) via selective on or off battery cooling for reflux branch road (622) with it is described The entrance connection of compressor (604), and it is heated to reflux branch road (637) and described first via battery The outlet of switch valve (635).
2. automotive thermal tube according to claim 1 manages system, it is characterised in that described first Second switch valve (643) is provided with road (641).
3. automotive thermal tube according to claim 1 manages system, it is characterised in that described second The 3rd switch valve (644) is provided with road (642).
4. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes：First triple valve (645), the egress selection of the outdoor heat exchanger (605) Ground connects via the second throttling branch road or the second through-flow branch road with the entrance of first triple valve (645), The first outlet of first triple valve (645) connects with the first end of the tie point (641), The second outlet of first triple valve (645) connects with the first end of second branch road (642).
5. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery The 4th switch valve (638) is provided with heating branch road (636).
6. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery The 5th switch valve (639) is provided with cooling for reflux branch road (622).
7. automotive thermal tube according to claim 6 manages system, it is characterised in that in the battery The first check valve (626) is additionally provided with cooling for reflux branch road (622).
8. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery It is heated to reflux being provided with the second check valve (640) on branch road (637).
9. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet (620a) of formula heat exchanger (620) cools down via the battery of selective on or off The outlet of branch road (621) and the outdoor heat exchanger (605), and cool down branch in the battery The first expansion valve (623) is provided with road.
10. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet (620a) of formula heat exchanger (620) cools down via the battery of selective on or off The of the first end of branch road (621) and the tie point (641) and second branch road (642) One end connects, and is provided with flow valve (625) on battery cooling branch road (621).
11. automotive thermal tube according to claim 1 manages system, it is characterised in that the indoor steaming The outlet for sending out device (602) connects via the entrance of the 3rd check valve (627) and the compressor (604) It is logical.
12. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate Formula heat exchanger (620) is connected in the coolant circuit of the battery bag heat-exchange system, and described cold But be additionally provided with liquid loop connected with first plate type heat exchanger (620) the first water pump (628), Deputy tank (629) and battery bag (630).
13. automotive thermal tube according to claim 1 manages system, it is characterised in that the engine Cooling system includes the second water pump (631), engine (632), indoor heater cores (633) and the Two triple valves (634), the outlet of second water pump (631) and second triple valve (634) Entrance (634a) connects, and the first outlet (634b) and second of second triple valve (634) goes out Mouthful (634c) engine coolant entrance (620c) with first plate type heat exchanger (620) respectively Connection connects with the entrance of the indoor heater cores (633), first plate type heat exchanger (620) Engine coolant outlet (620d) and the indoor heater cores (633) outlet with it is described Engine (632) coolant inlet connection, the cooling liquid outlet of the engine (632) with it is described The entrance connection of second water pump (631).
14. automotive thermal tube according to claim 1 manages system, it is characterised in that described first is logical The 6th switch valve (608) is provided with stream branch road, the second expansion valve is provided with the first throttle branch road (607)。
15. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also include first expansion switch valve (603), this first expansion switch valve (603) entrance with The outlet of the indoor condenser (601), the outlet of the first expansion switch valve (603) and institute The entrance connection of outdoor heat exchanger (605) is stated, the first throttle branch road is that the described first expansion switchs The throttling runner of valve (603), the first through-flow branch road are the described first expansion switch valve (603) Through-flow runner.
16. automotive thermal tube according to claim 1 manages system, it is characterised in that described second is logical The 7th switch valve (610) is provided with stream branch road, the 3rd expansion valve is provided with the second throttling branch road (609)。
17. automotive thermal tube according to claim 16 manages system, it is characterised in that the automobile Heat management system is applied to electric automobile, and the automotive thermal tube reason system also includes electromotor cooling system；
The heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, second plate Formula heat exchanger (612) is arranged in the described second through-flow branch road, and second plate type heat exchanger (612) It is arranged on simultaneously in the electromotor cooling system.
18. automotive thermal tube according to claim 17 manages system, it is characterised in that described second The refrigerant inlet (612a) of plate type heat exchanger (612) and the outlet of the outdoor heat exchanger (605) Connection, the refrigerant outlet (612b) of second plate type heat exchanger (612) and the described 7th switch The entrance connection of valve (610).
19. the automotive thermal tube reason system according to claim 17 or 18, it is characterised in that described Electromotor cooling system include connected with second plate type heat exchanger (612) with formed the motor in loop, Motor radiator (613) and the 3rd water pump (614).
20. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also include second expansion switch valve (606), this second expansion switch valve (606) entrance with The outlet of the outdoor heat exchanger (605), the outlet of the second expansion switch valve (606) and institute State the first end connection of tie point (641) and connected with the first end of second branch road (642), The second throttling branch road is the throttling runner of the described second expansion switch valve (606), and described second is logical Flow the through-flow runner that branch road is the described second expansion switch valve (606).
21. automotive thermal tube according to claim 20 manages system, it is characterised in that the automobile Heat management system is applied to electric automobile, and the automotive thermal tube reason system also includes electromotor cooling system；
The heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, second plate The refrigerant inlet (612a) of formula heat exchanger (612) goes out with the described second expansion switch valve (606) Mouthful connection, the refrigerant outlet (612b) of second plate type heat exchanger (612) with described first The first end on road (641) is connected and connected with the first end of second branch road (642), and described Second plate type heat exchanger (612) while it is arranged in the electromotor cooling system.
22. automotive thermal tube according to claim 21 manages system, it is characterised in that the motor Cooling system includes motor coolant main line (616), the first motor coolant branch road (617) and second Motor coolant branch road (618), the first end of the motor coolant main line (616) optionally with The first end of the first motor coolant branch road (617) or the second motor coolant branch road (618) First end connection, the second end of the first motor coolant branch road (617) and second motor Second end of coolant branch road (618) connects with the second end of the motor coolant main line (616), Wherein, be in series with the motor coolant main line (616) motor, motor radiator (613) and 3rd water pump (614), second plate is in series with the first motor coolant branch road (617) Formula heat exchanger (612).
23. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes gas-liquid separator (611), outlet and the pressure of the gas-liquid separator (611) The entrance connection of contracting machine (604), entrance and the indoor evaporator of the gas-liquid separator (611) (602) outlet, the second end and the gas-liquid separator (611) of the tie point (641) Entrance connection, the refrigerant outlet (620b) of first plate type heat exchanger (620) is via described Battery cooling for reflux branch road (622) connects with the entrance of the gas-liquid separator (611).
24. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes ptc heater (619), and the ptc heater (619) is used for flowing through the room The wind of inner condenser (601) is heated.
25. automotive thermal tube according to claim 24 manages system, it is characterised in that the PTC Heater (619) is arranged in the windward side or leeward side of the indoor condenser.
26. a kind of electric automobile, it is characterised in that including according to any one in claim 1-25 Described automotive thermal tube reason system.
CN201610305553.7A 2016-05-10 2016-05-10 Automobile thermal management system and electric automobile Active CN107351695B (en)

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CN109572486B (en) * 2018-11-27 2020-12-01 安徽江淮汽车集团股份有限公司 Thermal management system and control method for power battery of hybrid electric vehicle
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CN117134037B (en) * 2023-08-28 2024-03-19 无锡柯诺威新能源科技有限公司 Battery thermal management system and compressor motor temperature adjusting method

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