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CN205970883U - Car thermal management system and electric automobile - Google Patents

Car thermal management system and electric automobile Download PDF

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Publication number
CN205970883U
CN205970883U CN201620418340.0U CN201620418340U CN205970883U CN 205970883 U CN205970883 U CN 205970883U CN 201620418340 U CN201620418340 U CN 201620418340U CN 205970883 U CN205970883 U CN 205970883U
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CN
China
Prior art keywords
heat exchanger
branch road
valve
outlet
entrance
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Active
Application number
CN201620418340.0U
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Chinese (zh)
Inventor
黄健
叶梅娇
陈雪峰
汪孟瑛
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201620418340.0U priority Critical patent/CN205970883U/en
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    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Air-Conditioning For Vehicles (AREA)

Abstract

The utility model discloses a car thermal management system and electric automobile, wherein, car thermal management system includes heat pump air conditioning system, a battery package heat transfer system and a plate heat exchanger, heat pump air conditioning system includes the HVAC assembly, compressor and outdoor heat exchanger, a plate heat exchanger's refrigerant entry switches on or the battery cooling branch road that ends and outdoor heat exchanger's export intercommunication inclusive AND indoor evaporator's entry intercommunication via the selectivity, a plate heat exchanger's refrigerant export via the entry intercommunication of battery cooling return branch with the compressor, a plate heat exchanger establishes ties simultaneously in battery package heat transfer system's battery cooling liquid return circuit. Like this, car thermal management system can pass through battery water circulating system, utilizes earlier the refrigerant to make the coolant liquid cooling, recycles the coolant liquid and comes to cool off the battery for the battery is worked be in suitable temperature range when summer in, thus improve the battery fill discharge efficiency, duration and life.

Description

Automotive thermal tube reason system and electric automobile
Technical field
This utility model is related to the field of air conditioning of electric automobile, in particular it relates to a kind of automotive thermal tube reason system and inclusion This automotive thermal tube manages the electric automobile of system.
Background technology
The battery efficiency of electric automobile to be ensured is high, it is desirable to have suitable operating temperature, and too high or height all can Its performance and endurance are made a big impact.China Patent Publication No. is that the utility model of CN205039220U discloses A kind of automobile power cell cooling system.Although this power battery cooling system can pass through vaporizer to power current in refrigeration Pond is cooled down, but electrokinetic cell and vaporizer are close together and carry out heat exchange although feasible in principle, but is difficult to reality on car Existing, because vaporizer is typically all in air conditioning box body, cabinet space is limited, and the electrokinetic cell of pure electric automobile is very big, typically It is placed in underbody.
Utility model content
The purpose of this utility model is to provide a kind of automotive thermal tube reason system and electric automobile, to solve the above problems.
To achieve these goals, according to of the present utility model in a first aspect, providing a kind of automotive thermal tube to manage system, its In, described automotive thermal tube reason system includes heat pump type air conditioning system, battery bag heat-exchange system and the first plate type heat exchanger, described heat pump Air conditioning system includes HVAC assembly, compressor and outdoor heat exchanger, and described HVAC assembly includes indoor condenser, indoor evaporator And air door mechanism, described air door mechanism is for selectively turning on the air channel leading to described interior condenser and/or leading to described The air channel of indoor evaporator, the outlet of described compressor is connected with the entrance of described interior condenser, described interior condenser Connect with the entrance of described outdoor heat exchanger via first throttle branch road or the first through-flow branch road, described outdoor egress selection The egress selection ground of heat exchanger is connected with the entrance of described indoor evaporator via the second throttling branch road or the second through-flow branch road, The outlet of described indoor evaporator is connected with the entrance of described compressor, the refrigerant inlet of described first plate type heat exchanger via The battery of selectivity on or off cool down branch road and described outdoor heat exchanger outlet or with described indoor evaporator Entrance connects, and the refrigerant outlet of described first plate type heat exchanger is via the entrance of battery cooling for reflux branch road and described compressor Connection, described first plate type heat exchanger is connected in the battery coolant circuit of described battery bag heat-exchange system simultaneously.
Alternatively, the refrigerant inlet of described first plate type heat exchanger is via the battery cooling of selectivity on or off Road and the outlet of described outdoor heat exchanger, and it is provided with the first expansion valve on described battery cooling branch road.
Alternatively, described automotive thermal tube reason system also includes first switch valve, the egress selection of described outdoor heat exchanger Ground is connected with the entrance of described first switch valve via the described second throttling branch road or described second through-flow branch road, and described first opens The outlet closing valve is connected with the entrance of described indoor evaporator, and the refrigerant inlet of described first plate type heat exchanger is via selectivity The battery cooling branch road of on or off is connected with the entrance of described first switch valve, and sets on described battery cooling branch road It is equipped with flow valve.
Alternatively, described battery cooling for reflux branch road is provided with the first check valve.
Alternatively, the outlet of described indoor evaporator is connected with the entrance of described compressor via the second check valve.
Alternatively, it is additionally provided with the coolant circuit of described battery bag heat-exchange system and described first plate type heat exchanger string First ptc heater of connection.
Alternatively, it is additionally provided with the coolant circuit of described battery bag heat-exchange system and described first plate type heat exchanger string First water pump of connection, secondary water tank and battery bag.
Alternatively, described first through-flow branch road is provided with second switch valve, described first throttle branch road is provided with Two expansion valves.
Alternatively, described heat pump type air conditioning system also includes the first expansion switch valve, this first expansion switch valve entrance with The outlet of described interior condenser, the outlet of this first expansion switch valve is connected with the entrance of described outdoor heat exchanger, institute State the throttling runner that first throttle branch road is described first expansion switch valve, described first through-flow branch road expands for described first Close the through-flow runner of valve.
Alternatively, described second through-flow branch road is provided with the 3rd switch valve, described second throttling branch road is provided with the Three expansion valves.
Alternatively, described automotive thermal tube reason system is applied to electric automobile, and described automotive thermal tube reason system also includes motor Cooling system；Described heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, described second plate type heat exchanger is arranged on In described second through-flow branch road, and described second plate type heat exchanger is simultaneously located in described electromotor cooling system.
Alternatively, the outlet of the refrigerant inlet of described second plate type heat exchanger and described outdoor heat exchanger, described The refrigerant outlet of the second plate type heat exchanger is connected with the entrance of described 3rd switch valve.
Alternatively, described electromotor cooling system include connecting with described second plate type heat exchanger with form loop motor, Motor radiator and the second water pump.
Alternatively, described heat pump type air conditioning system also includes the second expansion switch valve, this second expansion switch valve entrance with The outlet of described outdoor heat exchanger, the outlet of this second expansion switch valve is connected with the entrance of described indoor evaporator, institute State the throttling runner that the second throttling branch road is described second expansion switch valve, described second through-flow branch road expands for described second Close the through-flow runner of valve.
Alternatively, described automotive thermal tube reason system is applied to electric automobile, and described automotive thermal tube reason system also includes motor Cooling system；Described heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, the refrigeration of described second plate type heat exchanger The outlet that agent entrance expands switch valve with described second, the refrigerant outlet of described second plate type heat exchanger and described interior The entrance of vaporizer connects, and described second plate type heat exchanger is simultaneously located in described electromotor cooling system.
Alternatively, described electromotor cooling system includes motor coolant main line, the first motor coolant branch road and the second electricity Machine coolant branch road, the first end on described motor coolant main line optionally with described first motor coolant branch road first The first end connection of end or described second motor coolant branch road, the second end of described first motor coolant branch road and described the Second end of two motor coolant branch roads is connected with second end on described motor coolant main line, wherein, in the cooling of described motor Motor, motor radiator and the second water pump are in series with liquid main line, described first motor coolant branch road are in series with described Second plate type heat exchanger.
Alternatively, described heat pump type air conditioning system also includes gas-liquid separator, the outlet of described gas-liquid separator and described pressure The entrance connection of contracting machine, the outlet of the entrance of described gas-liquid separator and described indoor evaporator, described first board-like changes The refrigerant outlet of hot device is connected with the entrance of described gas-liquid separator via described battery cooling for reflux branch road.
Alternatively, described HVAC assembly also includes the second ptc heater, and this second ptc heater is used for described to flowing through The wind of indoor condenser is heated.
Alternatively, described second ptc heater is arranged in windward side or the leeward side of described interior condenser.
According to second aspect of the present utility model, provide a kind of electric automobile, manage system including above-described automotive thermal tube System.
The automotive thermal tube reason system that this utility model provides, in the case of not changing refrigerant cycle direction, you can real The refrigeration of existing air conditioner heat pump system and heat-production functions.Further, since increase that branch road, the first plate type heat exchanger and electricity are cooled down by battery Pond cooling for reflux branch road collectively constitute and indoor evaporator be in parallel for the cold-producing medium diverter branch that battery is cooled down, can To avoid battery to be directly arranged in indoor evaporator, beneficial to arrangement.Additionally, automotive thermal tube reason system can pass through battery Water circulation system, makes coolant lower the temperature first with cold-producing medium, recycles coolant battery to be cooled down so that battery exists It is in work within the scope of suitable temperature, thus improving the efficiency for charge-discharge of battery, endurance and service life during summer.
Other feature and advantage of the present utility model will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide and further understands to of the present utility model, and constitutes a part for description, and following Specific embodiment be used for together explaining this utility model, but do not constitute to restriction of the present utility model.In the accompanying drawings：
Fig. 1 is according to a kind of structural representation of the heat pump type air conditioning system of embodiment of the present utility model；
Fig. 2 is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 3 is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 4 is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 5 A is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 5 B is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 6 is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model；
Fig. 7 is the structural representation of the automotive thermal tube reason system according to a kind of embodiment of the present utility model；
Fig. 8 is the structural representation of the automotive thermal tube reason system according to another embodiment of the present utility model；
Fig. 9 is the overlooking the structure diagram of the expansion switch valve that this utility model preferred implementation provides；
Figure 10 is the cross-sectional view crossed by along Fig. 9 center line AB-AB, and wherein, the first valve port and the second valve port are equal It is in open mode；
Figure 11 is that the structure of facing along a visual angle of the expansion switch valve that this utility model preferred implementation provides is shown It is intended to；
Figure 12 is the cross-sectional view crossed by along Fig. 9 center line AB-AB, and wherein, the first valve port is in open mode, Second valve port is in closure state；
Figure 13 is the cross-sectional view crossed by along Fig. 9 center line AB-AB, and wherein, the first valve port is in closure state, Second valve port is in open mode；
Figure 14 be the expansion switch valve that this utility model preferred implementation provides face structure along another visual angle Schematic diagram；
Figure 15 is the cross-sectional view crossed by along Figure 14 center line AC-AC, and wherein, the first valve port is in open shape State, the second valve port is in closure state；
Figure 16 is the first internal structure schematic diagram of the expansion switch valve that this utility model preferred implementation provides, its In, the first valve port and the second valve port are in open mode；
Figure 17 is the partial enlarged drawing in A portion in Figure 16；
Figure 18 is the second internal structure schematic diagram of the expansion switch valve that this utility model preferred implementation provides, its In, 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 this utility model preferred implementation provides, its In, the first valve port is closed, and the second valve port is in open mode.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.It should be appreciated that herein Described specific embodiment is merely to illustrate and explains this utility model, is not limited to this utility model.
In this utility model, in the case of illustrating on the contrary, the noun of locality such as " upper and lower, left and right " of use is generally It is for the page of accompanying drawing, " upstream, downstream " is with respect to medium, e.g., for the flow direction of cold-producing medium , specifically, the flow direction towards cold-producing medium is downstream, and the flow direction deviating from cold-producing medium is upstream, and " inside and outside " refers to phase Answer the interior and outer of component outline.
Additionally, in this utility model, electric automobile can include pure electric automobile, hybrid vehicle, fuel cell Automobile.
Fig. 1 is according to a kind of structural representation of the heat pump type air conditioning system of embodiment of the present utility model.As Fig. 1 institute Show, this 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 assembly 600 can include indoor cold Condenser 601, indoor evaporator 602 and air door mechanism (not shown), wherein, air door mechanism can be used for selectively turning on and leads to The air channel of indoor condenser 601 and/or the air channel leading to indoor evaporator 602.
In this utility model, in HVAC assembly, lead to the air channel of indoor condenser 601 and lead to indoor evaporator 602 Air channel be turned on and off can be independently controlled by air door mechanism.That is, passing through air door mechanism, can control Wind only passes through indoor condenser 601, or only passes through indoor evaporator 602, or by indoor condenser 601 and indoor evaporation Both devices 602, thus, it is possible to realize the independent control of wind direction.
Additionally, as shown in figure 1, the outlet of compressor 604 is connected with the entrance of indoor condenser 601, indoor condenser 601 Egress selection ground connect with the entrance of outdoor heat exchanger 605 via first throttle branch road or the first through-flow branch road, outdoor is changed The egress selection ground of hot device 605 is connected with the entrance of indoor evaporator 602 via the second throttling branch road or the second through-flow branch road, The outlet of indoor evaporator 602 is connected with the entrance of compressor 604.
In this utility model, or the outlet of indoor condenser 601 is via first throttle branch road and outdoor heat exchanger 605 Entrance connection, or connecting with the entrance of outdoor heat exchanger 605 via the first through-flow branch road.Can be real using various ways Existing this mode of communicating.For example, in one embodiment, as shown in figure 1, heat pump type air conditioning system can also include the first expansion Switch valve 603, the entrance of this first expansion switch valve 603 and the outlet of indoor condenser 601, this first expansion switch valve 603 outlet is connected with the entrance of outdoor heat exchanger 605, and wherein, first throttle branch road is the throttling of the first expansion switch valve 603 Runner, the first through-flow branch road is the through-flow runner of the first expansion switch valve 603.
In this utility model, expand switch valve is to have expansion valve function (also referred to as electric expansion valve function) simultaneously With the valve of switch valve function (also referred to as electromagnetic valve function), can be regarded as being switch valve integrated with expansion valve.? Expand switch valve has been internally formed through-flow runner and throttling runner, when expansion switch valve uses as switch valve, inside it The conducting of through-flow runner, now form through-flow branch road；When expansion switch valve uses as expansion valve, its internal throttling runner Conducting, now forms throttling branch road.
Embodiment alternatively, as shown in Fig. 2 this heat pump type air conditioning system can also include second switch valve 608 and second expansion valve 607, wherein, the first through-flow branch road is provided with second switch valve 608, first throttle branch road is arranged There is the second expansion valve 607.Specifically, as shown in Fig. 2 the outlet of indoor condenser 601 is changed via second switch valve 608 and outdoor The entrance of hot device 605 connects to form the first through-flow branch road, and the outlet of indoor condenser 601 is via the second expansion valve 607 and room The entrance of external heat exchanger 605 connects to form first throttle branch road.When system is under high-temperature refrigeration pattern, second switch valve 608 conductings, the second expansion valve 607 cuts out, and the outlet of indoor condenser 601 is via the first through-flow branch road and outdoor heat exchanger 605 Entrance connection.When system is under low temperature heating pattern, the second expansion valve 607 turns on, and second switch valve 608 cuts out, room The outlet of inner condenser 601 is connected with the entrance of outdoor heat exchanger 605 via first throttle branch road.
Similar with the implementation of the first through-flow branch road and first throttle branch road, as the second through-flow branch road and second section The one of which embodiment of stream branch road, as shown in figure 1, heat pump type air conditioning system can also include the second expansion switch valve 606, should The outlet of entrance and the outdoor heat exchanger 605 of the second expansion switch valve 606, the outlet of this second expansion switch valve 606 with The entrance connection of indoor evaporator 602, wherein, the second throttling branch road is the throttling runner of the second expansion switch valve 606, and second leads to Stream branch road is the through-flow runner of the second expansion switch valve 606.
Embodiment alternatively, as shown in figure 3, this heat pump type air conditioning system can also include the 3rd switch valve 610 and the 3rd expansion valve 609, wherein, the second through-flow branch road is provided with the 3rd switch valve 610, the second throttling branch road is arranged There is the 3rd expansion valve 609.Specifically, as shown in figure 3, the outlet of outdoor heat exchanger 605 is via the 3rd switch valve 610 and indoor steaming The entrance sending out device 602 connects to form the second through-flow branch road, and the outlet of outdoor heat exchanger 605 is via the 3rd expansion valve 609 and room The entrance of interior vaporizer 602 connects to form the second throttling branch road.When system is under high-temperature refrigeration pattern, the 3rd expansion valve 609 conductings, the 3rd switch valve 610 cuts out, and the outlet of outdoor heat exchanger 605 is via the second throttling branch road and indoor evaporator 602 Entrance connection.When system is under low temperature heating pattern, the 3rd switch valve 610 turns on, and the 3rd expansion valve 609 cuts out, room The outlet of external heat exchanger 605 is connected with the entrance of indoor evaporator 602 via the second through-flow branch road.
For convenience pipeline lay, save space take it is preferable that this utility model provide heat pump type air conditioning system in Expand switch valve 603 and the second expansion switch valve 606 using first, i.e. the embodiment shown in Fig. 1.
Fig. 4 shows the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model.As Fig. 4 Shown, this heat pump type air conditioning system can also include gas-liquid separator 611, wherein, the outlet of indoor evaporator 602 and gas-liquid separation The entrance connection of device 611, the outlet of gas-liquid separator 611 is connected with the entrance of compressor 604.So, through indoor evaporator 602 The cold-producing medium flowing out can first pass around gas-liquid separator 611 and carry out gas-liquid separation, and the gas isolated is back to compressor again In 604, thus preventing liquid refrigerant from entering into compressor 604 and damaging compressor 604, such that it is able to extend compressor 604 Service life, and improve the efficiency of whole heat pump type air conditioning system.
Under low temperature heating pattern, in order to improve heating ability it is preferable that as fig. 5 a and fig. 5b, in whole heat pump It is provided with the second plate type heat exchanger 612, this second plate type heat exchanger 612 is also disposed in electric automobile simultaneously in air conditioning system In electromotor cooling system.As such, it is possible to utilize the waste heat of electromotor cooling system to air conditioning system refrigerant heat, thus can improve The suction temperature of compressor 604 and inspiration capacity.
For example, as shown in Figure 5A, the enforcement of the 3rd expansion valve 609 and the 3rd switch valve 610 is adopted in heat pump type air conditioning system In mode, the second plate type heat exchanger 612 can be arranged in the second through-flow branch road as shown in Figure 5A.For example, in a kind of embodiment party In formula, the refrigerant inlet 612a of the second plate type heat exchanger 612 and the outlet of outdoor heat exchanger 605, the second plate-type heat-exchange The refrigerant outlet 612b of device 612 is connected with the entrance of the 3rd switch valve 610.Or, (do not show in another embodiment Go out), the refrigerant inlet 612a of the second plate type heat exchanger 612 can also be board-like with the outlet of the 3rd switch valve 610, second The refrigerant outlet 612b of heat exchanger 612 is connected with the entrance of indoor evaporator 602.
Meanwhile, the second plate type heat exchanger 612 is simultaneously located in electromotor cooling system.As shown in Figure 5A, motor is cold But system can include connecting with the second plate type heat exchanger 612 with motor, motor radiator 613 and the second water pump forming loop 614.So, cold-producing medium can carry out heat exchange by the second plate type heat exchanger 612 and the coolant in electromotor cooling system.Warp After crossing the 3rd switch valve 610 and indoor evaporator 602, the outlet of indoor evaporator 602 is still the gas of low-temp low-pressure, now the Three switch valves 610 and indoor evaporator 602 are only used as runner and flow through.
Or, as shown in Figure 5 B, adopt in the embodiment of the second expansion switch valve 606 in heat pump type air conditioning system, second The outlet of the refrigerant inlet 612a of plate type heat exchanger 612 and second expansion switch valve 606, the second plate type heat exchanger 612 Refrigerant outlet 612b connect with the entrance of indoor evaporator 602, and the second plate type heat exchanger 612 be simultaneously located at electronic In the electromotor cooling system of automobile.So, cold-producing medium can be by cold in the second plate type heat exchanger 612 and electromotor cooling system But liquid carries out heat exchange.
By the second plate type heat exchanger 612, heating ability under low temperature heating pattern for the air conditioning system can be improved.
But, the heat pump type air conditioning system shown in Fig. 5 B adopts in the embodiment of the second expansion switch valve 606, in order to keep away Exempt to carry out the heating of cold-producing medium under high-temperature refrigeration pattern, can be controlled whether in the second plate type heat exchanger 612 using valve In carry out heat exchange.Specifically, electromotor cooling system can include coolant main line 616, the first coolant branch road 617 and second Coolant branch road 618, wherein, the first end on coolant main line 616 optionally with the first end of the first coolant branch road 617 or The first end connection of the second coolant branch road 618.For example, in one embodiment, the first end on coolant main line 616 is permissible Connect with the import 615a of three-way valve 615, the first end of the first coolant branch road 617 can be with the first outlet of three-way valve 615 615b connects, and the first end of the second coolant branch road 618 can be connected with second outlet 615c of three-way valve 615, thus, passes through This three-way valve 615, can control the first end optionally first end with the first coolant branch road 617 on coolant main line 616 Or second coolant branch road 618 first end connection.Additionally, as shown in Figure 5 B, the second end of the first coolant branch road 617 with cold But liquid main line 616 second end connection, and the second end of the second coolant branch road 618 also with coolant main line 616 second End connection, wherein, is in series with motor, motor radiator 613 and the second water pump 614 on coolant main line 616, in the first cooling Second plate type heat exchanger 612 is in series with liquid branch road 617.
So, when air conditioning system is operated under low temperature heating pattern, now in order to improve heating ability, need second In plate type heat exchanger 612, cold-producing medium is heated.Therefore, in such a case, it is possible to make the by controlling three-way valve 615 One coolant branch road 617 turns on, and thus, the coolant in electromotor cooling system flows through the second plate type heat exchanger 612, now, can To realize the heat exchange with cold-producing medium.However, when system is operated under high-temperature refrigeration pattern, now not needing board-like second In heat exchanger 612, cold-producing medium is heated.Therefore, in such a case, it is possible to second cold by controlling three-way valve 615 to make But liquid branch road 618 turns on, and thus, the coolant in electromotor cooling system is not passed through the second plate type heat exchanger 612, and second board-like changes Hot device 612 flows through as just the runner of cold-producing medium.
In the heat pump type air conditioning system that this utility model provides, the various refrigeration such as R134a, R410a, R32, R290 can be used Agent, preferentially selects high temperature cold-producing medium.
Fig. 6 is the structural representation of the heat pump type air conditioning system according to another embodiment of the present utility model.As Fig. 6 institute Show, HVAC assembly 600 can also include the second ptc heater 619, this second ptc heater 619 is used for flowing through indoor condensation The wind of device 601 is heated.
In this utility model, the second ptc heater 619 can be high pressure PTC (being driven by car load high-tension battery), voltage Scope：200V-900V.Or, the second ptc heater 619 can also be low pressure PTC (driving of 12V or 24V accumulator), voltage Scope：9V-32V.In addition, this second ptc heater 619 can be by several or several pieces of PTC-ceramic piece modules and radiating fin One complete core body of composition or the PTC-ceramic piece module of the strip with radiating fin or bulk.
In this utility model, this second ptc heater 619 can arrange the windward side of condenser 601 or the back of the body indoors Wind side.And, in order to improve the heats to the wind flowing through indoor condenser 601, this second ptc heater 619 can be with Indoor condenser 601 be arranged in parallel.In other embodiments, this second ptc heater 619 can also be arranged in HVAC assembly Blowing at foot air port and defrosting outlet of 600 casing, can also be arranged at the air port of defrosting duct.
If the second ptc heater 619 is arranged in windward side or the leeward side of casing interior room inner condenser 601, with room Inner condenser 601 is arranged in parallel, can grooving on casing housing, the second ptc heater 619 is inserted perpendicularly into puts casing into, also may be used With welding support on condenser 601 side plate indoors, the second ptc heater 619 is fixed by screws in indoor condenser 601 On support.If the second ptc heater 619 is arranged in the blowing at foot air port and defrosting outlet of casing, or it is arranged in defrosting wind At the air port in road, can be directly anchored at casing air outlet and the air port of wind passage mouth by screw.
By this embodiment, when the outer temperature of car is too low, when the heating capacity of heat pump low temperature heating is unsatisfactory for in-car demand, The second ptc heater 619 auxiliary heating heating, heating capacity when thus can eliminate heat pump type air conditioning system low-temperature heating can be run Little, car load defrosting-defogging is slow, the defect such as heating effect is not good.
Fig. 7 is the structural representation of the automotive thermal tube reason system according to a kind of embodiment of the present utility model.As Fig. 7 institute Show, this system can include heat pump type air conditioning system described above, battery bag heat-exchange system and the first plate type heat exchanger 620, Wherein, the refrigerant inlet of the first plate type heat exchanger 620 is changed with outdoor via the battery cooling branch road of selectivity on or off The outlet of hot device 605 or connect with the entrance of indoor evaporator 602, the refrigerant outlet warp of the first plate type heat exchanger 620 Connected with the entrance of compressor 604 by battery cooling for reflux branch road, the first plate type heat exchanger 620 is connected on battery bag heat exchange simultaneously In the battery coolant circuit of system.
That is, as main inventive concept of the present utility model, it is to be cooled down branch road, first board-like changed by battery by increasing That hot device 620 and battery cooling for reflux branch road collectively constitute and that indoor evaporator 602 is in parallel for the system that battery is cooled down Cryogen diverter branch, so, when system powers up under the refrigerating mode of pond in high-temperature refrigeration, cold-producing medium is segmented into two strands：Wherein One refrigerant flow direction indoor evaporator 602, and evaporate in vaporizer 602 indoors, absorb indoor environment heat, reduce indoor Temperature；Another strand of refrigerant flow direction the first plate type heat exchanger 620, and by the first plate type heat exchanger 620 and battery bag heat exchange system Coolant in the battery coolant circuit of system carries out heat exchange, absorbs the heat of coolant, and then can realize to battery bag Cooling.
In this utility model, the connected mode of the refrigerant inlet of the first plate type heat exchanger 620 has both of which：One Plant in embodiment, as shown in fig. 7, the refrigerant inlet of the first plate type heat exchanger 620 can be via selectivity on or off Battery cool down the outlet of branch road and outdoor heat exchanger 605.Specifically, battery cooling branch road can arrange first swollen Swollen valve 621.As such, it is possible to control cold-producing medium whether can by opening or closing the first expansion valve 621 according to the actual requirements Flow into the refrigerant inlet of the first plate type heat exchanger 620.That is, battery cooling branch road is controlled to be in conducting state, or place In cut-off state.
In this embodiment, power up under the refrigerating mode of pond in high-temperature refrigeration, from outdoor heat exchanger 605 middle temperature out The cold-producing medium of high pressure is directly divided into two strands：One flows to the second expansion switch valve 606；Another plume is to the first expansion valve 621.Change Yan Zhi, now cold-producing medium be shunting after reducing pressure by regulating flow is carried out respectively on every branch road again.
In another embodiment, as shown in figure 8, the refrigerant inlet of the first plate type heat exchanger 620 is via selectivity The battery cooling branch road of on or off is connected with the entrance of indoor evaporator 602.Specifically, automotive thermal tube reason system is acceptable Including first switch valve 626, the egress selection ground of outdoor heat exchanger 605 via the second throttling branch road or the second through-flow branch road with The entrance connection of first switch valve 626.In embodiment shown in specifically in Fig. 8, the outlet of outdoor heat exchanger 605 is via second Expand switch valve 606 to connect with the entrance of first switch valve 626.The outlet of first switch valve 626 is entered with indoor evaporator 602 Mouth connection, the refrigerant inlet of the first plate type heat exchanger 620 cools down branch road and first via the battery of selectivity on or off The entrance connection of switch valve 626, and it is provided with flow valve 627 on battery cooling branch road.
As such, it is possible to control whether cold-producing medium can flow into the first plate type heat exchanger 620 by controlling flow valve 627 Refrigerant inlet, i.e. control battery cooling branch road be in conducting state, be in cut-off state.Additionally, control flow Valve 627 can also regulate and control the size that cold-producing medium flows into the flow of the first plate type heat exchanger 620.
In this embodiment, power up under the refrigerating mode of pond in high-temperature refrigeration, from outdoor heat exchanger 605 middle temperature out The cold-producing medium of high pressure is divided into two strands after the throttling of the second expansion switch valve 606：One flows to first switch valve 626, another Plume to flow valve 627, to realize the distribution of the flow proportional of two strands of cold-producing mediums.In other words, now, cold-producing medium is first on main line On carry out reducing pressure by regulating flow and then shunted again.
In order to prevent under low temperature heating pattern, the cold-producing medium of low-temp low-pressure is back in the first plate type heat exchanger 620, such as Shown in Fig. 7 and Fig. 8, the first check valve 628 is provided with battery cooling for reflux branch road.That is, the first check valve 628 can only be unidirectional Ground allows cold-producing medium to flow to the entrance of compressor 604 from the refrigerant outlet of the first plate type heat exchanger 620, and can not be to phase negative side To flowing.
During in order to prevent from only battery bag 622 being cooled down, the cold-producing medium of low-temp low-pressure is back to indoor evaporator 602 In, the outlet of indoor evaporator 602 can be connected with the entrance of compressor 604 via the second check valve 629.That is, second is unidirectional Valve 629 can only uniaxially allow cold-producing medium to flow to the entrance of compressor 604 from the outlet of indoor evaporator 602, and can not be to phase Opposite direction flows.
For ease of when winter temperature is relatively low, realizing the intensification heating to battery bag 622, the cooling of battery bag heat-exchange system It is additionally provided with the first ptc heater 623 connected with the first plate type heat exchanger 620 in liquid loop.
Specifically, it is additionally provided with the coolant circuit of battery bag heat-exchange system and connect with the first plate type heat exchanger 620 First water pump 624, secondary water tank 625 and battery bag 622.
For example, in one embodiment, the cooling liquid outlet of battery bag 622 and the coolant inlet of secondary water tank 625 connect Logical, the cooling liquid outlet of secondary water tank 625 is connected with the coolant inlet of the first water pump 624, the cooling liquid outlet of the first water pump 624 Connect with the coolant inlet of the first plate type heat exchanger 620, the cooling liquid outlet of the first plate type heat exchanger 620 and a PTC add The coolant inlet connection of hot device 623, the cooling liquid outlet of the first ptc heater 623 is connected with the coolant inlet of battery bag 622 Logical, it is consequently formed the circulation of battery bag cooling/heating.
As described above, damaging compressor 604 for preventing liquid refrigerant from entering into compressor 604, such that it is able to extend The service life of compressor 604, and improve the efficiency of whole heat pump type air conditioning system, heat pump type air conditioning system is provided with gas-liquid and divides From device 611.As shown in Figure 7 and Figure 8, the entrance of gas-liquid separator 611 except with the outlet of indoor evaporator 602 in addition to, The refrigerant outlet of the first plate type heat exchanger 620 is also connected with the entrance of gas-liquid separator 611 via battery cooling for reflux branch road. In other words, from the first plate type heat exchanger 620, liquid refrigerant out can also first pass around gas-liquid separator 611 and carries out gas-liquid Separate, the gas isolated is back in compressor 604 again, thus preventing liquid refrigerant from entering into compressor 604 and damaging Compressor 604.
The automotive thermal tube reason system to describe this utility model offer below in detail by different Working moulds taking Fig. 7 as a example Cyclic process under formula and principle.It should be appreciated that under other embodiment (for example, the embodiment shown in Fig. 8) being System cyclic process and principle are similar to Fig. 7, just no longer repeat one by one herein.
Pattern one：High-temperature refrigeration pattern.System be in system in this mode when, whole system formed one high Warm cooling cycle system.As shown in fig. 7, first, compressor 604 discharges the gas of High Temperature High Pressure through overcompression, with indoor condensation Device 601 is connected.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, indoors Heat exchange will not be carried out, this indoor condenser 601 is only used as runner and uses, now indoor condenser 601 exports in condenser 601 It is still the gas of High Temperature High Pressure.Indoor condenser 601 is exported and is connected with the first expansion switch valve 603, and now first expands switch Valve 603 switches valve action, is only used as runner and flows through, and now the first expansion switch valve 603 exports the still gas for High Temperature High Pressure. First expansion switch valve 603 is exported and is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and outdoor air heat exchange, and heat is dissipated It is dealt in the air, outdoor heat exchanger 605 exports the liquid for middle temperature high pressure.Outdoor heat exchanger 605 outlet expands switch with second Valve 606 is connected, and now second expands 606 expansion valve actions of switch valve, plays throttling action as restricting element, it exports and is Low temperature low pressure liquid.Second expansion switch valve 606 aperture can give certain aperture according to the actual requirements, and this aperture can root According to the pressure-temperature sensor between the entrance of the outlet being arranged on indoor evaporator 602 and gas-liquid separator 611 pressure and Temperature acquisition data calculates indoor evaporator 602 outlet refrigerant superheat degree to adjust.Second expansion switch valve 606 exports and room The entrance of interior vaporizer 602 is connected, and Low temperature low pressure liquid is evaporated in vaporizer 602 indoors so that indoor evaporator 602 Export the gas for low-temp low-pressure.Indoor evaporator 602 is connected with gas-liquid separator 611, and the liquid not being evaporated is passed through gas Liquid/gas separator 611 separates, and the gas of last low-temp low-pressure returns in compressor 604, is consequently formed a circulation.Now HVAC is total The flow direction becoming 600 apoplexy flows only through indoor evaporator 602, the calm process of indoor condenser 601, is only used as refrigerant flow path stream Cross, the first ptc heater 623 is closed, the first expansion valve 621 cuts out.
Pattern two：Battery refrigerating mode.System in this mode when, battery bag heat-exchange system formed a battery bag Cooling recirculation system.As shown in fig. 7, first, compressor 604 discharges the gas of High Temperature High Pressure through overcompression, with indoor condenser 601 are connected.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, cold indoors Heat exchange will not be carried out, this indoor condenser 601 is only used as runner and uses, now indoor condenser 601 exports still in condenser 601 Gas for High Temperature High Pressure.Indoor condenser 601 is exported and is connected with the first expansion switch valve 603, now the first expansion switch valve The valve action of 603 switches, is only used as runner and flows through, and now the first expansion switch valve 603 exports the still gas for High Temperature High Pressure.The One expansion switch valve 603 is exported and is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and outdoor air heat exchange, and heat is distributed To in the air, outdoor heat exchanger 605 exports the liquid for middle temperature high pressure.Outdoor heat exchanger 605 outlet and the first expansion valve 621 phase Even, through the throttling cooling of the first expansion valve 621, the outlet of the first expansion valve 621 is Low temperature low pressure liquid.First expansion valve 621 apertures can give certain aperture according to the actual requirements, and this aperture can be according to being arranged on the first plate type heat exchanger 620 The pressure and temperature gathered data of the pressure-temperature sensor between the entrance of refrigerant outlet and gas-liquid separator 611 is adjusting Section.First expansion valve 621 is exported and is connected with the refrigerant inlet of the first plate type heat exchanger 620, and Low temperature low pressure liquid is in the first plate Carry out heat exchange with the hot water out from battery bag 622 so that the cold-producing medium of the first plate type heat exchanger 620 in formula heat exchanger 620 Export the gas for low-temp low-pressure.The refrigerant outlet of the first plate type heat exchanger 620 is connected with gas-liquid separator 611, not steaming The liquid distributing passes through gas-liquid separator 611 and separates, and the gas of last low-temp low-pressure returns in compressor 604, is consequently formed one Individual circulation.Now in HVAC assembly 600, the calm process of indoor condenser 601, it is only used as refrigerant flow path and flows through, a PTC adds Hot device 623 is closed, and the second expansion switch valve 606 cuts out.
Pattern three：High-temperature refrigeration powers up pond refrigerating mode.When in this mode, it is same that whole system forms a high-temperature refrigeration When battery cooling recirculation system.As shown in fig. 7, first, compressor 604 discharges the gas of High Temperature High Pressure through overcompression, with interior Condenser 601 is connected.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, Heat exchange will not be carried out, this indoor condenser 601 is only used as runner and uses, now indoor condenser 601 in indoor condenser 601 Outlet is still the gas of High Temperature High Pressure.Indoor condenser 601 is exported and is connected with the first expansion switch valve 603, now the first expansion Switch valve 603 switches valve action, is only used as runner and flows through, and now the first expansion switch valve 603 exports is still High Temperature High Pressure Gas.First expansion switch valve 603 is exported and is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and outdoor air heat exchange, Heat is dispersed in the air, and outdoor heat exchanger 605 exports the liquid for middle temperature high pressure.Outdoor heat exchanger 605 exports respectively with Two expansion switch valves 606 are connected with the first expansion valve 621, now, divide from the liquid of outdoor heat exchanger 605 middle temperature high pressure out Become two strands：One flows to the entrance of the second expansion switch valve 606, and now, second expands 606 expansion valve action phases of switch valve Same, play throttling action as restricting element, it exports as Low temperature low pressure liquid.The aperture of the second expansion switch valve 606 is permissible Give certain aperture according to the actual requirements, this aperture can be according to the outlet being arranged on indoor evaporator 602 and gas-liquid separation The pressure and temperature gathered data of the pressure-temperature sensor between the entrance of device 611 calculates indoor evaporator 602 outlet refrigeration The agent degree of superheat is adjusting.Second expansion switch valve 606 is exported and is connected with the entrance of indoor evaporator 602, and Low temperature low pressure liquid exists It is evaporated in indoor evaporator 602 so that indoor evaporator 602 exports the gas for low-temp low-pressure.Another plume is to first The entrance of expansion valve 621, the aperture of the first expansion valve 621 can give certain aperture according to the actual requirements, and this aperture is permissible Pressure-temperature sensor between refrigerant outlet according to the first plate type heat exchanger 620 and the entrance of gas-liquid separator 611 Pressure and temperature gathered data is adjusting.Through the reducing pressure by regulating flow of the first expansion valve 621, the outlet of the first expansion valve 621 is low Warm low pressure liquid.First expansion valve 621 is exported and is connected with the refrigerant inlet of the first plate type heat exchanger 620, Low temperature low pressure liquid Carry out heat exchange with the hot water out from battery bag 622 so that the first plate type heat exchanger 620 in the first plate type heat exchanger 620 Refrigerant outlet be low-temp low-pressure gas.The cold-producing medium of the outlet of indoor evaporator 602 and the first plate type heat exchanger 620 goes out Mouthful be connected with gas-liquid separator 611 respectively, from the refrigerant outlet of the first plate type heat exchanger 620 cold-producing medium out and from interior The outlet of vaporizer 602 cold-producing medium out converges, and the liquid not being evaporated is passed through gas-liquid separator 611 and separates, finally low The gas of warm low pressure returns in compressor 604, is consequently formed a circulation.Now the flow direction of HVAC assembly 600 apoplexy flows only through Indoor evaporator 602, the calm process of indoor condenser 601, it is only used as refrigerant flow path and flows through, the first ptc heater 623 is in Closed mode, the second expansion switch valve 606 and the first expansion valve 621 are in open mode.
Pattern four：Low temperature heating pattern.System in this mode when, whole system forms low temperature heating circulation System.As shown in fig. 7, first, compressor 604 discharges the gas of High Temperature High Pressure through overcompression, is connected with indoor condenser 601, The gas of High Temperature High Pressure is condensed in condenser 601 indoors so that indoor condenser 601 exports the liquid for middle temperature high pressure Body.Indoor condenser 601 is exported and is connected with the first expansion switch valve 603, now the work of first expansion 603 expansion valves of switch valve With playing throttling action as restricting element, it exports the liquid for low-temp low-pressure.Wherein, first expands opening of switch valve 603 Degree can give certain aperture according to the actual requirements, this aperture can according to the pressure in the exit being arranged on compressor 604- The number of the temperature acquisition data (i.e. compressor exhaust temperature) of temperature sensor is adjusting.First expansion switch valve 603 exports It is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 absorbs the heat of outdoor air, and outdoor heat exchanger 605 exports low for low temperature The gas of pressure.Outdoor heat exchanger 605 is exported and is connected with the second expansion switch valve 606, and now second expands 606 switches of switch valve The effect of valve, is only used as a runner and flows through.Second expansion switch valve 606 is exported and is connected with the entrance of indoor evaporator 602.Logical Crossing air door mechanism controls wind only to flow to indoor condenser 601 and do not flow to indoor evaporator 602 so that in indoor evaporator 602 Do not carry out heat exchange, be only used as a runner and use, its outlet is still the gas of low-temp low-pressure.Indoor evaporator 602 and gas-liquid Separator 611 is connected, and the liquid not being evaporated is passed through gas-liquid separator 611 and separates, the gas of last low-temp low-pressure returns to pressure In contracting machine 604, it is consequently formed a circulation.Now the flow direction of HVAC assembly 600 apoplexy flows only through indoor condenser 601, indoor The calm process of vaporizer 602, is only used as refrigerant flow path and flows through, and the first ptc heater 623 is closed, and the first expansion valve 621 closes Close.
Pattern five：Battery-heated model.System in this mode when, battery bag heat-exchange system formed a battery bag Heating circulation system.First ptc heater 623 is opened, the coolant in heating battery bag water circulation system, the first water pump 624 So that the coolant circulation after heating is got up, enter battery bag 622 to heat to battery, thus complete a circulation.Wherein, One expansion valve 621 cuts out, so, positioned at the first check valve 628 and first expansion valve 621 at the first plate type heat exchanger 620 two ends Make battery bag heat-exchange system independent of heat pump type air conditioning system, so, the work of battery bag heat-exchange system and heat pump type air conditioning system Process will not produce and influence each other, and now, heat pump type air conditioning system quits work.
To sum up, the automotive thermal tube reason system that this utility model provides, in the case of not changing refrigerant cycle direction, that is, The refrigeration of achievable air conditioner heat pump system and heat-production functions.Further, since increase that branch road, the first plate type heat exchanger are cooled down by battery What collectively constitute with battery cooling for reflux branch road and indoor evaporator was in parallel props up for the cold-producing medium shunting that battery is cooled down Road, can avoid battery to be directly arranged in indoor evaporator, beneficial to arrangement.Additionally, automotive thermal tube reason system not only may be used By battery water circulation system, to make coolant lower the temperature first with cold-producing medium, coolant is recycled battery is cooled down, And add the first ptc heater in battery water circulation system, the heating to battery is realized by heated cooling fluid so that electricity Pond works all the time within the scope of suitable temperature, thus improving the efficiency for charge-discharge of battery, endurance and service life.
As described above, in this utility model, expanding switch valve is to have expansion valve function and switch valve function simultaneously Valve, can be regarded as being switch valve integrated with expansion valve.Will be provided below a kind of example expanding switch valve in fact Apply mode.
As shown in figure 9, expansion switch valve mentioned above can include valve body 500, wherein, this valve body 500 is formed with Import 501, the outlet 502 and connection inner flow passage between import 501 and outlet 502, inner flow passage is provided with first Valve element 503 and the second valve element 504, the first valve element 503 makes import 501 directly connect or disconnect connection, the second valve with outlet 502 Core 504 makes import 501 connect by restriction 505 with outlet 502 or disconnect connection.
Wherein, " directly the connecting " that the first valve element is realized refers to that the coolant of import 501 entrance from valve body 500 is permissible Cross the first valve element and pass through the outlet 502 that inner flow passage insusceptibly flows directly to valve body 500, the first valve element is realized " disconnecting connection " refers to that the coolant entering from the import 501 of valve body 500 cannot be crossed the first valve element and can not flow by inside Road flows to the outlet 502 of valve body 500." being connected by restriction " that second valve element is realized refers to the import 501 from valve body 500 The coolant entering can be crossed the second valve element and flow to the outlet 502 of valve body 500 after the throttling of restriction, and the second valve " disconnect connection " that core is realized refer to the coolant entering from the import 501 of valve body 500 cannot cross the second valve element and can not Flow to the outlet 502 of valve body 500 by restriction 505.
So, by the control to the first valve element and the second valve element, expansion switch valve of the present utility model so that from Three kinds of states at least realized by the coolant that import 501 enters.That is, 1) cut-off state；2) cross the direct connection of the first valve element 503 State；And 3) cross the throttling mode of communicating of the second valve element 504.
Wherein, the liquid refrigerant of High Temperature High Pressure, again after restriction 505 throttling, can become the vaporific of low-temp low-pressure Hydraulic pressure cold-producing medium, can be cold-producing medium evaporation create conditions, that is, the cross-sectional area of restriction 505 be less than outlet 504 horizontal stroke Sectional area, and by controlling the second valve element, the aperture size of restriction 505 can be adjusted, with controlling stream through restriction 505 Flow, prevents the refrigeration deficiency because of the very few generation of cold-producing medium, and prevents from making compressor produce liquid hammer because cold-producing medium is excessive Phenomenon.That is, the cooperation of the second valve element 504 and valve body 500 is so that expand the function that switch valve has expansion valve.
So, by the first valve element 503 and the second valve element 504 are installed on the inner flow passage of same valve body 500, to realize The break-make of import 501 and outlet 502 controls and/or throttling control function, and structure is simply it is easy to producing and installing, and works as this reality When being applied to heat pump with the expansion switch valve of new offer, it is possible to reduce the refrigerant charge of whole heat pump, fall Low cost, simplifies pipeline and connects, the more conducively oil return of heat pump.
As a kind of exemplary inner mounting structure of valve body 500, as shown in Fig. 9 to Figure 14, valve body 500 includes being formed The valve seat 510 of inner flow passage and the first valve casing 511 being arranged on this valve seat 510 and the second valve casing 512, in the first valve casing 511 The first electromagnetic drive part 521 for driving the first valve element 503 is installed, is provided with the second valve casing 512 for driving second Second electromagnetic drive part 522 of valve element 504, the first valve element 503 extends to the inner flow passage in valve seat 510 from the first valve casing 511, Second valve element 504 extends to the inner flow passage in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., solenoid, the control of power on/off can easily control The position of the first valve element 503, and then control import 501 directly to connect with outlet 502 or disconnect connection；By driving to the second electromagnetism Dynamic portion 522, e.g., solenoid, the control of power on/off can easily control the position of the second valve element 504, thus control into Whether mouth 501 is connected with restriction 505 with outlet 502.In other words, it has been installed in parallel total import 501 and outlet in valve body 500 502 electric expansion valve and electromagnetic valve it is thus possible to realize expanding the break-make of switch valve and/or the Automated condtrol of throttling, and Simplify pipeline trend.
For making full use of the locus of all directions expanding switch valve, it is to avoid expand switch valve and different pipeline connects Produce and interfere, valve seat 510 is formed as polyhedral structure, the first valve casing 511, the second valve casing 512, import 501 and outlet 502 are respectively It is arranged on the different surfaces of this polyhedral structure, wherein, the installation direction of the first valve casing 511 and the second valve casing 512 is mutually vertical Directly, the opening direction of import 501 and outlet 502 is mutually perpendicular to.As such, it is possible to import, export pipeline are connected to polyhedron knot On the different surfaces of structure, it can be avoided that pipeline arranges problem that is in disorder, tangling.
As expand switch valve a kind of typical internal structure, as shown in Fig. 9 to Figure 12, inner flow passage include respectively with The first flow 506 of import 501 connection and second flow channel 507, first flow 506 are formed with and the first valve element 503 cooperation First valve port 516, restriction 505 is formed in second flow channel 507 to be formed as the second valve port with the second valve element 504 cooperation 517, first flow 506 and second flow channel 507 are intersected in the downstream of the second valve port 517 and are connected with outlet 502.
That is, by converting the position of the first valve element 503 and realizing the closing to the first valve port 516 or open, and then control Connection import 501 being blocked or turning on, such that it is able to realize above-described electromagnetic valve with the first flow 506 of outlet 502 Connection or the function of disconnecting connection.Similarly, realize cutting to the second valve port 517 by converting the position of the second valve element 504 Break or turn on, such that it is able to realize the throttling function of electric expansion valve.
First flow 506 and second flow channel 507 can be respectively communicated with import 501 and outlet with any appropriate arrangement 502, the entirety for reducing valve body 500 takes up room, and as shown in figure 13, second flow channel 507 is opened up in the same direction with outlet 502, and first Runner 506 is formed as the orthogonal first through hole 526 with second flow channel 507, and import 501 is by being opened in second flow channel 507 The second through hole 527 on the wall of side is connected with second flow channel 507, and first through hole 526 and the second through hole 527 are connected respectively with import 501 Logical.Wherein, first through hole 526 or can be arranged in parallel in spatial vertical setting with the second through hole 527, and this utility model is to this It is not restricted, belong among protection domain of the present utility model.
Entirety for simplifying valve body 500 further takes up room, as shown in Figure 16 to Figure 19, import 501 and outlet 502 phases Mutually vertically it is opened on valve body 500.So, as shown in Figure 16 to Figure 18, the axis of import 501, outlet 502 axis (i.e. The axis of second flow channel 507), and the axis of first flow 506 is vertically arranged two-by-two in space, thus preventing the first valve element 503 and second the mobile generation of valve element 504 interfere, and can substantially 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 element 503 is along movement Direction and the first valve port 516 are coaxially laid selectively to block or to 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 the second valve port 517 Coaxially lay selectively to block or to depart from the second valve port 517.
Wherein, as shown in figure 15, for ensureing the reliability that the first valve element 503 blocks, the first valve element to first flow 506 503 can include the first valve rod 513 and the first plug 523 being connected to this first valve rod 513 end, and this first plug 523 is used To block first flow 506 on the end face being sealed against the first valve port 516.
For ease of adjusting the aperture size of the restriction 505 expanding switch valve, as shown in Figure 12 and Figure 13, the second valve element 504 include the second valve rod 514, and the end of this second valve rod 514 is formed as taper header structure, and the second valve port 517 is formed as and is somebody's turn to do The taper pore structure that taper header structure matches.
Wherein, restriction 505 aperture expanding switch valve can be adjusted by the second moving up and down of valve element 504, and Moving up and down of second valve element 504 can be adjusted by the second electromagnetic drive part 522.If expanding the restriction 505 of switch valve Aperture be 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, refrigeration Agent can not pass through restriction 505, i.e. the second valve port 517 completely；If expanding switch valve restriction 505 there is aperture, as Figure 13 institute Show there is between the taper header structure of the end of the second valve element 504 and restriction 505 space, flow to out again after cold-producing medium throttling Mouth 502.When if desired increasing the throttle opening expanding switch valve, can be by controlling the second electromagnetic drive part 522 so that second Valve element 504 moves up, so that taper header structure is away from restriction 505, thus the change realizing restriction 505 aperture is big；Phase Instead, when the aperture needing to reduce the restriction 505 expanding switch valve, can order about mobile under the second valve element 504 phase.
During use, when only needing to the electromagnetic valve function using expansion switch valve, as shown in Figure 12, Figure 15 and Figure 18, the One valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, and the second valve element 504 is in extreme lower position, and second Throttle orifice 505 is blocked by valve element 504, and the cold-producing medium flowing into inner flow passage from import 501 can not pass through throttle orifice completely 505, the first valve port 516 can only be passed sequentially through, first through hole 526 flows in outlet 502.When electromagnetic valve power-off, the first valve element 503 are moved to the left, and the first plug 523 and the first valve port 516 separate, and cold-producing medium can pass through from first through hole 526；Work as electromagnetism Valve is energized, and the first valve element 503 moves right, and the first plug 523 and the first valve port 516 are fitted, and cold-producing medium cannot be from first through hole Pass through in 526.
It should be noted that the dotted line with arrow in Figure 12 and Figure 18 represents cold-producing medium when using electromagnetic valve function Flow route and trend.
When only needing to the electric expansion valve function using expansion switch valve, as shown in Figure 13 and Figure 19, the second valve port 517, that is, restriction 505 be in open mode, the first valve element 503 blocks the first valve port 516, flows into internal stream from import 501 The cold-producing medium in road cannot pass through first through hole 526, can only pass sequentially through the second through hole 527, restriction 505 flows into outlet 502 In, and the second valve element 504 can be moved up and down to adjust the size of the aperture of restriction 505.
It should be noted that the dotted line with arrow in Figure 13 and Figure 19 represents cold-producing medium using electric expansion valve function When flow route and trend.
When needing simultaneously using the electromagnetic valve function of expanding switch valve and electric expansion valve function, such as Figure 10, Tu16He Shown in Figure 17, wherein, the dotted line with arrow represents glide path and the trend of cold-producing medium, and the first valve element 503 departs from the first valve Mouth 516, the first valve port 516 is in open mode, and restriction 505 is in open mode, and the cold-producing medium flowing into inner flow passage can To flow to outlet 502 along first flow 506 and second flow channel 507 respectively, thus have electromagnetic valve function and electronic expansion simultaneously Valve function.
It should be appreciated that above-mentioned embodiment as just expand switch valve one of which example, and and without In limiting this utility model, other have expansion valve function simultaneously and the expansion switch valve of switch valve function is equally applicable to this reality With new.
This utility model also provides a kind of electric automobile, including the above-mentioned automotive thermal tube reason system being provided according to this utility model System.Wherein, this electric automobile can include pure electric automobile, hybrid vehicle, fuel cell car.
Describe preferred implementation of the present utility model above in association with accompanying drawing in detail, but, this utility model does not limit Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model Art scheme carries out multiple simple variant, and these simple variant belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, this utility model is to each Plant possible compound mode no longer separately to illustrate.
Additionally, combination in any can also be carried out, as long as it is not disobeyed between various different embodiment of the present utility model Carry on the back thought of the present utility model, it equally should be considered as content disclosed in the utility model.

Claims (20)

1. a kind of automotive thermal tube reason system is it is characterised in that described automotive thermal tube reason system includes heat pump type air conditioning system, battery bag Heat-exchange system and the first plate type heat exchanger (620), described heat pump type air conditioning system include HVAC assembly (600), compressor (604) and Outdoor heat exchanger (605), described HVAC assembly (600) includes indoor condenser (601), indoor evaporator (602) and air door machine Structure, described air door mechanism is used for selectively turning on the air channel leading to described interior condenser (601) and/or leads to described interior The air channel of vaporizer (602), the outlet of described compressor (604) is connected with the entrance of described interior condenser (601), described room The egress selection ground of inner condenser (601) is via first throttle branch road or the first through-flow branch road and described outdoor heat exchanger (605) entrance connection, the egress selection ground of described outdoor heat exchanger (605) is via the second throttling branch road or second through-flow Road is connected with the entrance of described indoor evaporator (602), the outlet of described indoor evaporator (602) and described compressor (604) Entrance connection, the refrigerant inlet of described first plate type heat exchanger (620) cools down via the battery of selectivity on or off Branch road connects with the outlet of described outdoor heat exchanger (605) or with the entrance of described indoor evaporator (602), and described first The refrigerant outlet of plate type heat exchanger (620) is connected with the entrance of described compressor (604) via battery cooling for reflux branch road, institute State in the battery coolant circuit that the first plate type heat exchanger (620) is connected on described battery bag heat-exchange system simultaneously.
2. automotive thermal tube according to claim 1 manages system it is characterised in that described first plate type heat exchanger (620) Refrigerant inlet cools down the outlet of branch road and described outdoor heat exchanger (605) via the battery of selectivity on or off, And it is provided with the first expansion valve (621) on described battery cooling branch road.
3. automotive thermal tube according to claim 1 reason system is it is characterised in that described automotive thermal tube reason system also includes the One switch valve (626), the egress selection ground of described outdoor heat exchanger (605) is via the described second throttling branch road or described second Through-flow branch road is connected with the entrance of described first switch valve (626), the outlet of described first switch valve (626) with described interior steaming Send out the entrance connection of device (602), the refrigerant inlet of described first plate type heat exchanger (620) is via selectivity on or off Battery cooling branch road connect with the entrance of described first switch valve (626), and described battery cool down branch road on be provided with Flow valve (627).
4. automotive thermal tube reason system according to claim 1 is it is characterised in that set on described battery cooling for reflux branch road It is equipped with the first check valve (628).
5. automotive thermal tube according to claim 1 reason system is it is characterised in that the outlet of described indoor evaporator (602) Connect with the entrance of described compressor (604) via the second check valve (629).
6. automotive thermal tube according to claim 1 reason system is it is characterised in that the coolant of described battery bag heat-exchange system It is additionally provided with the first ptc heater (623) connected with described first plate type heat exchanger (620) in loop.
7. automotive thermal tube according to claim 1 or 6 manage system it is characterised in that described battery bag heat-exchange system cold But be additionally provided with liquid loop the first water pump (624) connected with described first plate type heat exchanger (620), secondary water tank (625) and Battery bag (622).
8. automotive thermal tube according to claim 1 reason system is it is characterised in that be provided with the on described first through-flow branch road Two switch valves (608), described first throttle branch road is provided with the second expansion valve (607).
9. automotive thermal tube reason system according to claim 1 is it is characterised in that described heat pump type air conditioning system also includes first Expand switch valve (603), the outlet of the entrance of this first expansion switch valve (603) and described interior condenser (601), should The outlet of the first expansion switch valve (603) is connected with the entrance of described outdoor heat exchanger (605), and described first throttle branch road is The described first throttling runner expanding switch valve (603), described first through-flow branch road is described first expansion switch valve (603) Through-flow runner.
10. automotive thermal tube reason system according to claim 1 is it is characterised in that be provided with described second through-flow branch road 3rd switch valve (610), described second throttling branch road is provided with the 3rd expansion valve (609).
11. automotive thermal tube reason systems according to claim 10 are it is characterised in that described automotive thermal tube reason system is applied to Electric automobile, described automotive thermal tube reason system also includes electromotor cooling system；
Described heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, described second plate type heat exchanger (612) sets Put in the described second through-flow branch road, and described second plate type heat exchanger (612) is simultaneously located at described electromotor cooling system In.
12. automotive thermal tubes according to claim 11 reason systems are it is characterised in that described second plate type heat exchanger (612) Refrigerant inlet (612a) and described outdoor heat exchanger (605) outlet, the system of described second plate type heat exchanger (612) Cryogen outlet (612b) is connected with the entrance of described 3rd switch valve (610).
The 13. automotive thermal tube reason systems according to claim 11 or 12 are it is characterised in that described electromotor cooling system includes Connect with described second plate type heat exchanger (612) with motor, motor radiator (613) and the second water pump (614) forming loop.
14. automotive thermal tubes according to claim 1 reason systems are it is characterised in that described heat pump type air conditioning system also includes the Two expansions switch valve (606), the entrance of this second expansion switch valve (606) and the outlet of described outdoor heat exchanger (605), The outlet of this second expansion switch valve (606) is connected with the entrance of described indoor evaporator (602), described second throttling branch road For the described second throttling runner expanding switch valve (606), described second through-flow branch road is described second expansion switch valve (606) Through-flow runner.
15. automotive thermal tube reason systems according to claim 14 are it is characterised in that described automotive thermal tube reason system is applied to Electric automobile, described automotive thermal tube reason system also includes electromotor cooling system；
Described heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, described second plate type heat exchanger (612) The outlet that refrigerant inlet expands switch valve (606) with described second, the cold-producing medium of described second plate type heat exchanger (612) Outlet connects with the entrance of described indoor evaporator (602), and described in described second plate type heat exchanger (612) is simultaneously located at In electromotor cooling system.
16. automotive thermal tube reason systems according to claim 15 are it is characterised in that described electromotor cooling system includes motor Coolant main line (616), the first motor coolant branch road (617) and the second motor coolant branch road (618), described motor cooling The first end on liquid main line (616) optionally first end or described second electricity with described first motor coolant branch road (617) The first end connection of machine coolant branch road (618), the second end of described first motor coolant branch road (617) and described second electricity Second end of machine coolant branch road (618) is connected with the second end of described motor coolant main line (616), wherein, in described electricity Motor, motor radiator (613) and the second water pump (614) are in series with machine coolant main line (616), cold in described first motor Described second plate type heat exchanger (612) is but in series with liquid branch road (617).
17. automotive thermal tube reason systems according to claim 1 are it is characterised in that described heat pump type air conditioning system also includes gas Liquid/gas separator (611), the outlet of described gas-liquid separator (611) is connected with the entrance of described compressor (604), and described gas-liquid is divided From the entrance of device (611) and the outlet of described indoor evaporator (602), the refrigeration of described first plate type heat exchanger (620) Agent outlet is connected with the entrance of described gas-liquid separator (611) via described battery cooling for reflux branch road.
18. automotive thermal tubes according to claim 1 reason systems are it is characterised in that described HVAC assembly (600) also includes the Two ptc heaters (619), this second ptc heater (619) is used for the wind flowing through described interior condenser (601) is carried out adding Heat.
19. automotive thermal tubes according to claim 18 reason systems are it is characterised in that described second ptc heater (619) cloth Put described interior condenser (601) windward side or leeward side.
A kind of 20. electric automobiles are it is characterised in that include the automotive thermal tube reason according to any one in claim 1-19 System.
CN201620418340.0U 2016-05-10 2016-05-10 Car thermal management system and electric automobile Active CN205970883U (en)

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