CN107351622B - Automotive thermal tube manages system and electric car - Google Patents

Automotive thermal tube manages system and electric car Download PDF

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Publication number
CN107351622B
CN107351622B CN201610305554.1A CN201610305554A CN107351622B CN 107351622 B CN107351622 B CN 107351622B CN 201610305554 A CN201610305554 A CN 201610305554A CN 107351622 B CN107351622 B CN 107351622B
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China
Prior art keywords
heat exchanger
outlet
entrance
valve
branch
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CN201610305554.1A
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Chinese (zh)
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CN107351622A (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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    • 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
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • 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
    • B60L58/27—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 by heating
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a kind of automotive thermal tube reason system and electric cars.It includes heat pump air conditioning system that automotive thermal tube, which manages system, battery pack heat-exchange system, engine-cooling system and the first plate heat exchanger, heat pump air conditioning system and engine-cooling system pass through the first plate heat exchanger respectively and battery pack heat-exchange system exchanges heat, heat pump air conditioning system includes HVAC assembly, compressor and outdoor heat exchanger, HVAC assembly includes indoor condenser, indoor evaporator and air door mechanism, the refrigerant inlet of first plate heat exchanger is connected to via the cooling branch of battery of selective on or off with the outlet of outdoor heat exchanger or with the entrance of indoor evaporator, the refrigerant outlet of first plate heat exchanger is connected to via battery cooling for reflux branch with the entrance of compressor.As a result, in addition to the demand realizing interior refrigeration and heating, also has the function of battery cooling and heating, battery is made to work within the scope of suitable temperature always, improve battery efficiency, cruising ability and service life.

Description

Automotive thermal tube manages system and electric car
Technical field
The present invention relates to the field of air conditioning of electric car, and in particular, to a kind of automotive thermal tube reason system and including the vapour The electric car of vehicle heat management system.
Background technique
Guarantee that the battery efficiency of electric car is high, need suitable operating temperature, excessively high or height all can It makes a big impact to its performance and cruising ability.The utility model patent that China Patent Publication No. is CN205039220U is public A kind of automobile power cell cooling system is opened.Although the power battery cooling system can pass through evaporator to dynamic in refrigeration Power battery is cooled down, and power battery is close together with evaporator and exchanges heat, although feasible in principle, but Che Shangnan To realize, because evaporator, generally all in air conditioning box body, cabinet space is limited, and the power battery of pure electric automobile is very big, It is typically disposed in vehicle bottom.
Summary of the invention
The object of the present invention is to provide a kind of automotive thermal tube reason system and electric cars, to solve the above problems.
To achieve the goals above, according to the first aspect of the invention, a kind of automotive thermal tube reason system, the automobile are provided Heat management system includes heat pump air conditioning system, battery pack heat-exchange system, engine-cooling system and the first plate heat exchanger, described Heat pump air conditioning system and the engine-cooling system are by first plate heat exchanger and battery pack heat exchange respectively System heat exchange, the heat pump air conditioning system include HVAC assembly, compressor and outdoor heat exchanger, and the HVAC assembly includes indoor cold Condenser, indoor evaporator and air door mechanism, the air door mechanism are used to selectively turn on the wind for leading to the indoor condenser Road and/or the air duct for leading to the indoor evaporator, the outlet of the compressor are connected to the entrance of the indoor condenser, The egress selection of the interior condenser via first throttle branch or the first through-flow branch and the outdoor heat exchanger Entrance connection, the egress selection of the outdoor heat exchanger via the second throttling branch or the second through-flow branch and the interior The entrance of evaporator is connected to, and the outlet of the indoor evaporator is connected to the entrance of the compressor, first plate-type heat-exchange The refrigerant inlet of device via the cooling branch of battery of selective on or off and the outlet of the outdoor heat exchanger or It is connected to the entrance of the indoor evaporator, the refrigerant outlet of first plate heat exchanger is via battery cooling for reflux branch It is connected to the entrance of the compressor.
Optionally, the refrigerant inlet of first plate heat exchanger cools down branch via the battery of selective on or off The outlet on road and the outdoor heat exchanger, and the first expansion valve is provided on the cooling branch road of the battery.
Optionally, the automotive thermal tube reason system further includes first switch valve, the egress selection of the outdoor heat exchanger Ground is connected to via the second throttling branch or the second through-flow branch with the entrance of the first switch valve, and described first opens The outlet for closing valve is connected to the entrance of the indoor evaporator, and the refrigerant inlet of first plate heat exchanger is via selectivity The cooling branch of the battery of on or off is connected to the entrance of the first switch valve, and in the cooling branch Lu Shangshe of the battery It is equipped with flow valve.
Optionally, the first check valve is provided on the battery cooling for reflux branch road.
Optionally, the outlet of the indoor evaporator is connected to via second one-way valve with the entrance of the compressor.
Optionally, first plate heat exchanger is connected in the coolant circuit of the battery pack heat-exchange system, and It is additionally provided in the coolant circuit and concatenated first water pump of first plate heat exchanger, deputy tank and battery pack.
Optionally, the engine-cooling system includes the second water pump, engine, indoor heater cores and the first threeway The outlet of valve, second water pump is connected to the entrance of first triple valve, two outlets difference of first triple valve It is connected to the engine coolant entrance of the entrance of the indoor heater cores and first plate heat exchanger, it is described indoor warm The outlet of wind core and the engine coolant of first plate heat exchanger export the coolant inlet with the engine Connection, the cooling liquid outlet of the engine are connected to the entrance of second water pump.
Optionally, the engine-cooling system further includes the first ptc heater and the second triple valve, the interior warm wind The outlet of core and the engine coolant outlet of first plate heat exchanger are connected to the entrance of second triple valve, The first outlet of second triple valve is connected to the coolant inlet of the engine, the second outlet of second triple valve It is connected to the entrance of second water pump, the outlet and described first of second water pump is arranged in first ptc heater Between the entrance of triple valve, or it is arranged between the entrance of second water pump and the second outlet of second triple valve.
Optionally, the described first through-flow branch road is provided with second switch valve, and the first throttle branch road is provided with the Two expansion valves.
Optionally, the heat pump air conditioning system further includes the first expansion switch valve, this first expansion switch valve entrance with The outlet of the outlet of the interior condenser, the first expansion switch valve is connected to the entrance of the outdoor heat exchanger, institute The throttling runner that first throttle branch is the first expansion switch valve is stated, the first through-flow branch expands for described first Close the through-flow runner of valve.
Optionally, the described second through-flow branch road is provided with third switch valve, and the second throttling branch road is provided with the Three expansion valves.
Optionally, the automotive thermal tube reason system is applied to electric car, and the automotive thermal tube reason system further includes motor Cooling system；The heat pump air conditioning system further include: the second plate heat exchanger, wherein the second plate heat exchanger setting exists In the second through-flow branch, and second plate heat exchanger is arranged in the electromotor cooling system simultaneously.
Optionally, the outlet of the refrigerant inlet of second plate heat exchanger and the outdoor heat exchanger, it is described The refrigerant outlet of second plate heat exchanger is connected to the entrance of the third switch valve.
Optionally, the electromotor cooling system include connect with second plate heat exchanger be formed into a loop motor, Motor radiator and third water pump.
Optionally, the heat pump air conditioning system further includes the second expansion switch valve, this second expansion switch valve entrance with The outlet of the outlet of the outdoor heat exchanger, the second expansion switch valve is connected to the entrance of the indoor evaporator, institute The throttling runner that the second throttling branch is the second expansion switch valve is stated, the second through-flow branch expands for described second Close the through-flow runner of valve.
Optionally, the automotive thermal tube reason system is applied to electric car, and the automotive thermal tube reason system further includes motor Cooling system；The heat pump air conditioning system further include: the second plate heat exchanger, wherein the refrigeration of second plate heat exchanger The outlet of agent entrance and the second expansion switch valve, the refrigerant outlet of second plate heat exchanger and the interior The entrance of evaporator is connected to, and second plate heat exchanger is arranged in the electromotor cooling system simultaneously.
Optionally, the electromotor cooling system includes motor coolant liquid main line, first motor coolant liquid branch and the second electricity Machine coolant liquid branch, the first end on motor coolant liquid main line selectively with the first motor coolant liquid branch first The connection of the first end of end or the second motor coolant liquid branch, the second end of the first motor coolant liquid branch and described the The second end of two motor coolant liquid branches is connected to the second end on motor coolant liquid main line, wherein cooling in the motor It is in series with motor, motor radiator and third water pump on liquid main line, is in series on the first motor coolant liquid branch road described Second plate heat exchanger.
Optionally, the heat pump air conditioning system further includes gas-liquid separator, the outlet of the gas-liquid separator and the pressure The entrance of contracting machine is connected to, the outlet of the entrance of the gas-liquid separator and the indoor evaporator, and described first board-like changes The refrigerant outlet of hot device is connected to via the battery cooling for reflux branch with the entrance of the gas-liquid separator.
Optionally, the HVAC assembly further includes the second ptc heater, which is used for described to flowing through The wind of indoor condenser is heated.
Optionally, second ptc heater is arranged in the windward side or leeward side of the indoor condenser.
According to the second aspect of the invention, a kind of electric car is provided, including what is provided according to the first aspect of the invention The automotive thermal tube manages system.
Automotive thermal tube provided by the invention manages system, in addition to can use heat pump air conditioning system realize interior cooling in summer and The demand of winter heating, there are also the functions of battery cooling and battery heating.By the first plate heat exchanger, heat pump sky can be passed through The refrigerant and battery pack coolant liquid of adjusting system carry out heat exchange, cool down to battery, and can pass through the coolant liquid and electricity of engine Pond packet coolant liquid carries out heat exchange, heats to battery, using the heat exchange between three kinds of media, is suitable under different vehicle conditions to energy The effective use in source makes battery work within the scope of suitable temperature always, 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 automotive air-conditioning system in the case where not changing refrigerant circulation direction Refrigeration and heating, structure is simple, so that whole system pipeline arrangement is simple, is easy to produce in batches.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the heat pump air conditioning system of embodiment according to the present invention；
Fig. 2 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 3 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 4 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 5 A is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 5 B is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 6 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 7 is a kind of structural schematic diagram of the automotive thermal tube reason system of embodiment according to the present invention；
Fig. 8 is the structural schematic diagram of the automotive thermal tube reason system of another embodiment according to the present invention；
Fig. 9 A and Fig. 9 B are the structural schematic diagrams of the automotive thermal tube reason system of another embodiment according to the present invention；
Figure 10 is the overlooking structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Figure 11 is the schematic diagram of the section structure crossed by Figure 10 middle line AB-AB, wherein the first valve port and the second valve port are equal It is in the open state；
Figure 12 is the positive structure diagram along a visual angle for the expansion switch valve that the preferred embodiment for the present invention provides；
Figure 13 is the schematic diagram of the section structure crossed by Figure 10 middle line AB-AB, wherein the first valve port is in open shape State, the second valve port are in closed state；
Figure 14 is the schematic diagram of the section structure crossed by Figure 10 middle line AB-AB, wherein the first valve port is in closed form State, the second valve port are in the open state；
Figure 15 is that the facing structure along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides is illustrated Figure；
Figure 16 is the schematic diagram of the section structure crossed by Figure 15 middle line AC-AC, wherein the first valve port is in open shape State, the second valve port are in closed state；
Figure 17 is the first schematic diagram of internal structure of the expansion switch valve that the preferred embodiment for the present invention provides, wherein the One valve port and the second valve port are in opening state；
Figure 18 is the partial enlarged view in the portion A in Figure 17；
Figure 19 is the second schematic diagram of internal structure of the expansion switch valve that the preferred embodiment for the present invention provides, wherein the One valve port is in the open state, and the second valve port is in close state；
Figure 20 is the third schematic diagram of internal structure for the expansion switch valve that the preferred embodiment for the present invention provides, wherein the One valve port is in close state, and the second valve port is in opening state.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, electric car mainly refers to hybrid vehicle.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usually phase For the page of attached drawing, " upstream, downstream " is that e.g., for the flow direction of refrigerant, have relative to medium Body, it is downstream towards the flow direction of refrigerant, is upstream away from the flow direction of refrigerant, " inside and outside " refers to corresponding portion Part profile it is interior with it is outer.
Fig. 1 is a kind of structural schematic diagram of the heat pump air conditioning system of embodiment according to the present invention.As shown in Figure 1, should System may include: HVAC (heating and ventilation and air-conditioning, Heating Ventilation and Air Conditioning) total At 600, compressor 604 and outdoor heat exchanger 605.Wherein, HVAC assembly 600 may include indoor condenser 601, indoor evaporation Device 602 and air door mechanism (not shown), wherein air door mechanism, which can be used for selectively turning on, leads to indoor condenser 601 Air duct and/or the air duct for leading to indoor evaporator 602.
In the present invention, in HVAC assembly, lead to the air duct of indoor condenser 601 and lead to the wind of indoor evaporator 602 Being turned on and off for road can be independently controlled by air door mechanism.That is, can control wind only by air door mechanism By indoor condenser 601, perhaps only pass through indoor evaporator 602 or by indoor condenser 601 and indoor evaporator Both 602, thus, it is possible to realize the independent control of wind direction.
In addition, as shown in Figure 1, compressor 604 outlet with interior condenser 601 entrance be connected to, indoor condenser 601 Egress selection be connected to via first throttle branch or the first through-flow branch with the entrance of outdoor heat exchanger 605, outdoor is changed It is connected to via the second throttling branch or the second through-flow branch with the entrance of indoor evaporator 602 to the egress selection of hot device 605, The outlet of indoor evaporator 602 is connected to the entrance of compressor 604.
In the present invention, the outlet of indoor condenser 601 or entering via first throttle branch and outdoor heat exchanger 605 Mouth is connected to or is connected to via the first through-flow branch with the entrance of outdoor heat exchanger 605.This can be realized using various ways Kind mode of communicating.For example, in one embodiment, as shown in Figure 1, heat pump air conditioning system can also include the first expansion switch Valve 603, the entrance of the first expansion switch valve 603 and the outlet of indoor condenser 601, the first expansion switch valve 603 Outlet be connected to the entrance of outdoor heat exchanger 605, wherein first throttle branch be first expansion switch valve 603 throttling stream Road, the first through-flow branch are the through-flow runner of the first expansion switch valve 603.
In the present invention, expansion switch valve is that have the function of expansion valve (also referred to as electric expansion valve function) simultaneously and open The valve for closing valve function (also referred to as solenoid valve function) can be regarded as being the integrated of switch valve and expansion valve.It is expanding The inside of switch valve is formed with through-flow runner and throttling runner, when expansion switch valve as switch valve in use, it internal leads to Runner conducting is flowed, forms through-flow branch at this time；When expansion switch valve as expansion valve in use, its inside throttling runner lead It is logical, throttling branch is formed at this time.
Embodiment alternatively, as shown in Fig. 2, the heat pump 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, and 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 with outdoor The entrance of hot device 605 is connected to form the first through-flow branch, and the outlet of indoor condenser 601 is via the second expansion valve 607 and room The entrance of external heat exchanger 605 is connected to form first throttle branch.When system is under heat pump high-temperature refrigeration mode, second is opened It closes valve 608 to be connected, the second expansion valve 607 is closed, and the outlet of indoor condenser 601 is via the first through-flow branch and outdoor heat exchanger 605 entrance connection.When system is under heat pump low-temperature heating pattern, the conducting of the second expansion valve 607, second switch valve 608 It closes, the outlet of indoor condenser 601 is connected to via first throttle branch with the entrance of outdoor heat exchanger 605.
It is similar with the implementation of the first through-flow branch and first throttle branch, as the second through-flow branch and the second section One of embodiment of branch is flowed, as shown in Figure 1, heat pump air conditioning system can also include the second expansion switch valve 606, it should Second expansion switch valve 606 entrance and outdoor heat exchanger 605 outlet, this second expansion switch valve 606 outlet with The entrance of indoor evaporator 602 is connected to, wherein the second throttling branch is the throttling runner of the second expansion switch valve 606, and second is logical Flow the through-flow runner that branch is the second expansion switch valve 606.
Embodiment alternatively, as shown in figure 3, the heat pump air conditioning system can also include third switch valve 610 and third expansion valve 609, wherein the second through-flow branch road is provided with third switch valve 610, and the second throttling branch road is arranged There is third expansion valve 609.Specifically, as shown in figure 3, the outlet of outdoor heat exchanger 605 is via third switch valve 610 and indoor steaming The entrance for sending out device 602 is connected to form the second through-flow branch, and the outlet of outdoor heat exchanger 605 is via third expansion valve 609 and room The entrance of interior evaporator 602 is connected to form the second throttling branch.When system is under heat pump high-temperature refrigeration mode, third is swollen Swollen valve 609 is connected, and third switch valve 610 is closed, and the outlet of outdoor heat exchanger 605 is via the second throttling branch and indoor evaporator 602 entrance connection.When system is under low temperature heating mode, third switch valve 610 is connected, and third expansion valve 609 is closed, The outlet of outdoor heat exchanger 605 is connected to via the second through-flow branch with the entrance of indoor evaporator 602.
In order to facilitate pipeline laying, space hold is saved, it is preferable that use in heat pump air conditioning system provided by the invention First expansion switch valve 603 and the second expansion switch valve 606, that is, embodiment shown in FIG. 1.
Fig. 4 shows the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention.Such as Fig. 4 institute Show, which can also include gas-liquid separator 611, wherein the outlet of indoor evaporator 602 and gas-liquid separator 611 entrance connection, the outlet of gas-liquid separator 611 is connected to the entrance of compressor 604.In this way, being flowed through indoor evaporator 602 Refrigerant out can first pass around gas-liquid separator 611 and carry out gas-liquid separation, and the gas isolated flows back into compressor 604 again In, to prevent liquid refrigerant from entering compressor 604 and damaging compressor 604, so as to extend making for compressor 604 With the service life, and improve the efficiency of entire heat pump air conditioning system.
Under heat pump low-temperature heating pattern, in order to improve heating ability, it is preferable that as fig. 5 a and fig. 5b, entire The second plate heat exchanger 612 is provided in heat pump air conditioning system, which is also disposed in electronic vapour simultaneously In the electromotor cooling system of vehicle.In this way, the waste heat that can use electromotor cooling system gives air-conditioning system refrigerant heat, so as to Improve the suction temperature and inspiratory capacity of compressor 604.
For example, as shown in Figure 5A, using the implementation of third expansion valve 609 and third switch valve 610 in heat pump air conditioning system In mode, the second plate heat exchanger 612 can be arranged in as shown in Figure 5A in the second through-flow branch.For example, in a kind of embodiment party In formula, the refrigerant inlet 612a of the second plate 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 to the entrance of third switch valve 610.Alternatively, (not showing in another embodiment Out), the refrigerant inlet 612a of the second plate heat exchanger 612 can also be board-like with the outlet of third switch valve 610, second The refrigerant outlet 612b of heat exchanger 612 is connected to the entrance of indoor evaporator 602.
At the same time, the second plate heat exchanger 612 is arranged in electromotor cooling system simultaneously.As shown in Figure 5A, motor is cold But system may include the motor, motor radiator 613 and third water pump connected with the second plate heat exchanger 612 to be formed into a loop 614.In this way, refrigerant can carry out heat exchange with the coolant liquid in electromotor cooling system by the second plate heat exchanger 612.Through After crossing third switch valve 610 and indoor evaporator 602, what is come out from indoor evaporator 602 is still the gas of low-temp low-pressure, at this time Third switch valve 610 and indoor evaporator 602 are only flowed through as runner.
Alternatively, as shown in Figure 5 B, in embodiment of the heat pump air conditioning system using the second expansion switch valve 606, second The outlet of the expansion switch valve 606 of the refrigerant inlet 612a of plate heat exchanger 612 and second, the second plate heat exchanger 612 Refrigerant outlet 612b be connected to the entrance of indoor evaporator 602, and the second plate heat exchanger 612 is arranged electronic simultaneously In the electromotor cooling system of automobile.In this way, refrigerant can by the second plate heat exchanger 612 with it is cold in electromotor cooling system But liquid carries out heat exchange.
By the second plate heat exchanger 612, heating ability of the air-conditioning system under heat pump low-temperature heating pattern can be improved.
But, in embodiment of the heat pump air conditioning system shown in Fig. 5 B using the second expansion switch valve 606, in order to keep away Exempt from the heating for carrying out refrigerant under heat pump high-temperature refrigeration mode, can be controlled whether using valve in the second plate heat exchanger Heat exchange is carried out in 612.Specifically, electromotor cooling system may include motor coolant liquid main line 616, first motor coolant liquid branch Road 617 and the second motor coolant liquid branch 618, wherein the first end on motor coolant liquid main line 616 is selectively electric with first The first end of machine coolant liquid branch 617 or the connection of the first end of the second motor coolant liquid branch 618.For example, in an embodiment party In formula, the first end on motor coolant liquid main line 616 can be connected to the import 615a of third triple valve 615, and first motor is cooling The first end of liquid branch 617 can be connected to the first outlet 615b of third triple valve 615, the second motor coolant liquid branch 618 First end can be connected to the second outlet 615c of third triple valve 615, as a result, by the third triple valve 615, can control The first end on motor coolant liquid processed main line 616 selectively with the first end or the second motor of first motor coolant liquid branch 617 The first end of coolant liquid branch 618 is connected to.In addition, as shown in Figure 5 B, the second end and motor of first motor coolant liquid branch 617 The second end on coolant liquid main line 616 is connected to, and the second end of the second motor coolant liquid branch 618 also with motor coolant liquid main line 616 second end connection, wherein motor, motor radiator 613 and third water pump are in series on motor coolant liquid main line 616 614, the second plate heat exchanger 612 is in series on first motor coolant liquid branch 617.
In this way, at this time in order to improve heating ability, being needed when air-conditioning system work is under heat pump low-temperature heating pattern Refrigerant is heated in second plate heat exchanger 612.Therefore, in such a case, it is possible to pass through control third triple valve 615 are connected first motor coolant liquid branch 617, and the coolant liquid in electromotor cooling system flows through the second plate-type heat-exchange as a result, Device 612, at this point it is possible to realize the heat exchange with refrigerant.However, when system work is under heat pump high-temperature refrigeration mode, this When do not need to heat refrigerant in the second plate heat exchanger 612.Therefore, in such a case, it is possible to pass through control The second motor coolant liquid branch 618 is connected in third triple valve 615, and the coolant liquid in electromotor cooling system is not passed through as a result, The runner of second plate heat exchanger 612, the second plate heat exchanger 612 as just refrigerant flows through.
In heat pump air conditioning system provided by the invention, the various refrigerants such as R134a, R410a, R32, R290 can be used, It is preferential to select high temperature refrigerant.
Fig. 6 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention.As shown in fig. 6, HVAC assembly 600 can also include the second ptc heater 619, which is used for flowing through indoor condenser 601 wind is heated.
In the present invention, the second ptc heater 619 can be high pressure PTC (being driven by vehicle high-tension battery), voltage model It encloses: 200V-900V.Alternatively, the second ptc heater 619 or low pressure PTC (driving of 12V or 24V battery), voltage model It encloses: 9V-32V.In addition, this second ptc heater 619 can be by several or several pieces of PTC ceramics piece modules and radiating fin group At a complete core, or the strip with radiating fin or block-like PTC ceramics piece module.
In the present invention, which can arrange the windward side or leeward side of condenser 601 indoors. Also, in order to improve the heating effect to the wind for flowing through indoor condenser 601, which can be cold with interior Condenser 601 is arranged in parallel.In other embodiments, which can also be arranged in HVAC assembly 600 Blowing at foot air port and defrosting outlet for cabinet, can also be arranged at the air port of defrosting duct.
If the second ptc heater 619 to be arranged in the windward side or leeward side of cabinet interior room inner condenser 601, with room Inner condenser 601 be arranged in parallel, can the grooving on cabinet shell, the second ptc heater 619, which is inserted perpendicularly into, puts cabinet into, can also With welding support on 601 side plate of condenser indoors, the second ptc heater 619 is fixed by screws in indoor condenser 601 On bracket.If the second ptc heater 619 is arranged in the blowing at foot air port and defrosting outlet of cabinet, or it is arranged in defrosting wind At the air port in road, it can be directly anchored to by screw at the air port of box air outlet and wind passage mouth.
By this embodiment, when outside temperature is too low, and the heating capacity of heat pump low-temperature heating is unsatisfactory for interior demand, The 619 auxiliary heating heating of the second ptc heater can be run, it is possible thereby to heating capacity when eliminating heat pump air conditioning system low-temperature heating It is small, the defects of vehicle defrosting-defogging is slow, and heating effect is bad.
Fig. 7 is the structural schematic diagram that system is managed according to a kind of automotive thermal tube of embodiment of invention.As shown in fig. 7, should System may include that heat pump air conditioning system described above, battery pack heat-exchange system, engine-cooling system and first are board-like Heat exchanger 620, wherein heat pump air conditioning system and engine-cooling system pass through the first plate heat exchanger 620 and battery pack respectively Heat-exchange system heat exchange.In the present invention, the first plate heat exchanger 620 is three ply board formula heat exchanger.So-called " three ply board formula heat exchange Device " refers to the internal plate heat exchanger for being formed with three heat exchanger channels, wherein what is flowed in a heat exchanger channels is heat pump sky The refrigerant of adjusting system, the interior flowing of a heat exchanger channels is battery coolant liquid, and what is flowed in a heat exchanger channels is engine Coolant liquid.
In the present invention, the refrigerant inlet 620a of the first plate heat exchanger 620 can be via selective on or off Battery cooling branch 621 and outdoor heat exchanger 605 outlet, or the cooling branch of battery via selective on or off Road 621 is connected to the entrance of indoor evaporator 602.In addition, the refrigerant outlet 620b of the first plate heat exchanger 620 can be via Battery cooling for reflux branch 622 is connected to the entrance of compressor 604.
In the present invention, it increases by the cooling branch 621 of battery, the first plate heat exchanger 620 and battery cooling for reflux branch It is that road 622 collectively constitutes and that indoor evaporator 602 is in parallel for the refrigerant diverter branch to battery cooling, in this way, working as When under heat pump high-temperature refrigeration mode, refrigerant is segmented into two strands: wherein one refrigerant flow direction indoor evaporator 602, and It is evaporated in evaporator 602 indoors, absorbs indoor environment heat, reduce room temperature；Another strand of refrigerant flow direction first is board-like Heat exchanger 620, and by the first plate heat exchanger 620 and the coolant liquid in the battery coolant circuit of battery pack heat-exchange system into Row heat exchange, absorbs the heat of coolant liquid, and then the cooling to battery pack may be implemented.
In the present invention, there are two types of modes for the connection type of the refrigerant inlet 620a of the first plate heat exchanger 620: one In kind of embodiment, as shown in fig. 7, the refrigerant inlet 620a of the first plate heat exchanger 620 can via selectivity conducting or The outlet of the battery of cut-off cooling branch 621 and outdoor heat exchanger 605.It specifically, can be on the cooling branch 621 of battery First expansion valve 623 is set.In this way, refrigeration can be controlled by opening or closing the first expansion valve 623 according to actual needs Whether agent can flow into the refrigerant inlet 620a of the first plate heat exchanger 620.That is, the cooling branch 621 of control battery is place In on state, it is in off state.
In this embodiment, under heat pump high-temperature refrigeration mode, from the medium temperature high pressure of outdoor heat exchanger 605 out Refrigerant is directly divided into two strands: one flows to the second expansion switch valve 606；Another plume is to the first expansion valve 623.In other words, Refrigerant is to carry out throttling decrease temperature and pressure after shunting respectively on every road Tiao Zhi again at this time.
In another embodiment, as shown in figure 8, the refrigerant inlet 620a of the first plate heat exchanger 620 is via choosing The cooling branch 621 of the battery of selecting property on or off is connected to the entrance of indoor evaporator 602.Specifically, automotive thermal tube reason system System can also include first switch valve 624, lead to via the second throttling branch or second to the egress selection of outdoor heat exchanger 605 Stream branch is connected to the entrance of first switch valve 624.In specific embodiment shown in Fig. 8, the outlet of outdoor heat exchanger 605 It is connected to via the second expansion switch valve 606 with the entrance of first switch valve 624.The outlet of first switch valve 624 and indoor evaporation The entrance of device 602 is connected to, and the refrigerant inlet 620a of the first plate heat exchanger 620 is cold via the battery of selective on or off But branch 621 is connected to the entrance of first switch valve 624, and is provided with flow valve 625 on the cooling branch 621 of battery.
In this way, can be by control flow valve 625 to control whether refrigerant can flow into the first plate heat exchanger 620 Refrigerant inlet 620a, that is, the cooling branch 621 of control battery be it is in the conductive state, be in off state.In addition, Control flow valve 625 can also regulate and control the size that refrigerant flows into the flow of the first plate heat exchanger 620.
In this embodiment, under heat pump high-temperature refrigeration mode, from the medium temperature high pressure of outdoor heat exchanger 605 out Refrigerant is divided into two strands after the throttling of the second expansion switch valve 606: one flows to first switch valve 624, another plume to Flow valve 625, to realize the distribution of the flow proportional of two strands of refrigerants.In other words, at this point, refrigerant is first to carry 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 the first plate heat exchanger 620 In, the first check valve 626 is provided on battery cooling for reflux branch 622.That is, the first check valve 626 can only uniaxially allow Refrigerant flows to the entrance of compressor 604 from the refrigerant outlet 620b of the first plate heat exchanger 620, and cannot be round about Flowing.
When only cooling down in order to prevent to battery pack, the refrigerant of low-temp low-pressure is back in indoor evaporator 602, The outlet of indoor evaporator 602 can be connected to via second one-way valve 627 with the entrance of compressor 604.That is, second one-way valve 627 can only uniaxially allow refrigerant to flow to the entrance of compressor 604 from the outlet of indoor evaporator 602, and cannot be to opposite Direction flowing.
In addition, as shown in Figure 7 and Figure 8, the first plate heat exchanger 620 is connected on the coolant circuit of battery pack heat-exchange system In, and be additionally provided in the coolant circuit with concatenated first water pump 628 of the first plate heat exchanger 620, deputy tank 629 and Battery pack 630, wherein battery coolant liquid can flow into the via the battery coolant inlet 620f of the first plate heat exchanger 620 One plate heat exchanger 620, and the first plate heat exchanger is flowed out via the battery cooling liquid outlet 620e of the first plate heat exchanger 620 620.When the cooling branch 621 of battery is connected, the refrigerant of heat pump air conditioning system can be via the system of the first plate heat exchanger 620 Cryogen entrance 620a flows into the first plate heat exchanger 620, and flows out via the refrigerant outlet 620b of the first plate heat exchanger 620 First plate heat exchanger 620.In this way, the heat that refrigerant and battery coolant liquid may be implemented is handed over by the first plate heat exchanger 620 It changes, to be cooled down for battery pack.
As described above, to prevent liquid refrigerant from entering compressor 604 and damaging compressor 604, so as to extend The service life of compressor 604, and the efficiency of entire heat pump air conditioning system is improved, provided with gas-liquid point in heat pump air conditioning system From device 611.As shown in Figure 7 and Figure 8, the entrance of gas-liquid separator 611 is other than with the outlet of indoor evaporator 602, The refrigerant outlet 620b of first plate heat exchanger 620 also entering via battery cooling for reflux branch 622 and gas-liquid separator 611 Mouth connection.In other words, gas-liquid separator 611 can also be first passed around from the refrigerant that the first plate heat exchanger 620 comes out to carry out Gas-liquid separation, the gas isolated are flowed back into again in compressor 604, thus prevent liquid refrigerant enter compressor 604 and Damage compressor 604.
In addition, as shown in Figure 7 and Figure 8, engine-cooling system may include the second water pump 631, engine 632, interior Heater cores 633 (being arranged in HVAC 600) and the first triple valve 634, wherein the outlet and the first threeway of the second water pump 631 The entrance 634a of valve 634 is connected to, two outlets (that is, first outlet 634b and second outlet 634c) point of the first triple valve 634 It is not connected to the engine coolant entrance 620c of the entrance of indoor heater cores 633 and the first plate heat exchanger 620, interior is warm The cooling of the outlet of wind core 633 and the engine coolant outlet 620d of the first plate heat exchanger 620 with engine 632 The connection of liquid entrance, the cooling liquid outlet of engine 632 are connected to the entrance of the second water pump 631.
When opening the second water pump 631, the entrance 634a of the first triple valve 634 of conducting goes out with the first of the first triple valve 634 When mouth 634b, engine coolant can flow into first via the engine coolant entrance 620c of the first plate heat exchanger 620 Plate heat exchanger 620, and the first plate heat exchanger is flowed out via the engine coolant of the first plate heat exchanger 620 outlet 620d 620.In this way, the waste heat that can use engine 632 is that battery pack 630 is heated.Further, it is also possible to pass through conducting the one or three The second outlet 634c of the entrance 634a of port valve 634 and the first triple valve 634, so that engine coolant flows into indoor warm wind core Body 633, to realize that using engine exhaust heat be interior heating.
There is the situation of waste heat deficiency in engine 632 in order to prevent, in another embodiment of the present invention, such as Fig. 9 A and Shown in Fig. 9 B, engine-cooling system can also include the first ptc heater 635 and the second triple valve 636, wherein interior is warm Wind core 633 outlet and the first plate heat exchanger 620 engine coolant export 620d with second triple valve 636 Entrance 636a connection, the coolant inlet of the first outlet 636b of second triple valve 636 and the engine 632 connects Logical, the second outlet 636c of second triple valve 636 is connected to the entrance of second water pump 631, the first PTC heating Device 635 can as shown in Figure 9 A as be arranged in second water pump 631 outlet and first triple valve 634 entrance Between 634a, or as shown in Figure 9 B as the entrance and second triple valve 636 of second water pump 631 are set Between second outlet 636c.As a result, by the first ptc heater 635, the temperature of engine coolant, Jin Ergeng can be improved It is heated for battery pack well.
It will carry out the automotive thermal tube that the present invention is described in detail provides by taking Fig. 9 A as an example below and manage system in different operating modes Under cyclic process and principle.It should be understood that other embodiments are (for example, embodiment party shown in Fig. 7, Fig. 8 and Fig. 9 B Formula) under system circulation process and principle with Fig. 9 be it is similar, just no longer repeat one by one herein.
Mode one: heat pump high-temperature refrigeration circulation pattern.System in this mode when, whole system formed a height Warm cooling cycle system.As shown in Figure 9 A, firstly, the gas of high temperature and pressure is discharged through overcompression for compressor 604, with indoor condensation Device 601 is connected.At this point, control wind without indoor condenser 601 by air door mechanism, due to calm process, indoors It not will do it heat exchange in condenser 601, which only uses as runner, goes out at this time from indoor condenser 601 What is come is still the gas of high temperature and pressure.The indoor outlet of condenser 601 is connected with the first expansion switch valve 603, the first expansion at this time Switch valve 603 plays switch valve action, only flows through as runner, and what is come out at this time from the first expansion switch valve 603 is still high for high temperature The gas of pressure.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 is changed with outdoor air Heat is dispersed into heat in air, is out the liquid of medium temperature high pressure from outdoor heat exchanger 605.Outdoor heat exchanger 605 exports It is connected with the second expansion switch valve 606, the second expansion switch valve 606 plays expansion valve action at this time, plays section as restricting element Stream effect, coming out is low temperature and low pressure liquid.Second expansion 606 aperture of switch valve can be given certain according to actual needs Aperture, this aperture can be according to the pressure-between the entrance for the outlet and gas-liquid separator 611 for being mounted on indoor evaporator 602 The pressure and temperature acquisition data of temperature sensor calculate Refrigerant Superheat at Evaporator Outlet to adjust.Second expansion switch valve 606 outlets are connected with the entrance of indoor evaporator 602, and low temperature and low pressure liquid is evaporated in evaporator 602 indoors, absorption chamber Interior heat reduces room temperature, so that being out the gas of low-temp low-pressure from indoor evaporator 602.Indoor evaporator 602 passes through It is connected by second one-way valve 627 with gas-liquid separator 611, the liquid not being evaporated is separated by gas-liquid separator 611, finally The gas of low-temp low-pressure returns in compressor 604, and a circulation is consequently formed.The flow direction of 600 apoplexy of HVAC assembly only flows at this time Through indoor evaporator 602, the calm process of indoor condenser 601 is only flowed through as refrigerant flow path.Also, in this mode, One expansion valve 623 is closed, and the first water pump 628 is closed, and the second water pump 631 is closed, the first triple valve 634 and the second triple valve 636 Power-off, that is, close.
Mode two: battery cooling cycle mode.As shown in Figure 9 A, firstly, high temperature and pressure is discharged through overcompression in compressor 604 Gas, be connected with indoor condenser 601.At this point, controlling wind without indoor condenser 601, due to nothing by air door mechanism Wind passes through, and therefore, not will do it heat exchange in condenser 601 indoors, which only uses as runner, this When from indoor condenser 601 come out still be high temperature and pressure gas.The indoor outlet of condenser 601 and the first expansion switch valve 603 are connected, and the first expansion switch valve 603 plays switch valve action at this time, only flow through as runner, at this time from the first expansion switch valve 603 come out still be high temperature and pressure gas.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchange Device 605 and outdoor air exchange heat, and heat is dispersed into air, are out the liquid of medium temperature high pressure from outdoor heat exchanger 605. The outlet of outdoor heat exchanger 605 is connected with the first expansion valve 623, cools down by the throttling of the first expansion valve 623, from the first expansion valve 623 be out low temperature and low pressure liquid.First expansion valve, 623 aperture can give certain aperture according to actual needs, this is opened Degree can be according to being mounted between the entrance of refrigerant outlet 620b and gas-liquid separator 611 of the first plate heat exchanger 620 The pressure and temperature of pressure-temperature sensor acquires data to adjust.The outlet of first expansion valve 623 and the first plate heat exchanger 620 refrigerant inlet 620a is connected, what low temperature and low pressure liquid came out in the first plate heat exchanger 620 and from battery pack 630 Hot water carries out heat exchange, so that being out the gas of low-temp low-pressure from the refrigerant outlet 620b of the first plate heat exchanger 620. The refrigerant outlet 620b of first plate heat exchanger 620 is connected via the first check valve 626 with 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 in compressor 604, is consequently formed one A circulation.At this point, the calm process of indoor condenser 601, only flows through as refrigerant flow path.Also, in this mode, first is swollen Swollen valve 623 is opened, and 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 first triple valve 634 and second triple valve 636 power off.
Mode three: heat pump high-temperature refrigeration is powered on pond cooling cycle mode.As shown in Figure 9 A, firstly, compressor 604 is through over-voltage The gas for high temperature and pressure of indenting out is connected with indoor condenser 601.At this point, controlling wind without indoor cold by air door mechanism Condenser 601, due to calm process, not will do it heat exchange in condenser 601 indoors, which only makees For runner use, what is come out from indoor condenser 601 is still the gas of high temperature and pressure at this time.Indoor condenser 601 outlet and the One expansion switch valve 603 be connected, at this time first expansion switch valve 603 play switch valve action, only flowed through as runner, at this time from What the first expansion switch valve 603 came out is still the gas of high temperature and pressure.First expansion switch valve 603 outlet and outdoor heat exchanger 605 are connected, and outdoor heat exchanger 605 and outdoor air exchange heat, and heat is dispersed into air, come out from outdoor heat exchanger 605 For the liquid of medium temperature high pressure.The outlet of outdoor heat exchanger 605 is connected with the second expansion switch valve 606 and the first expansion valve 623 respectively, At this point, the liquid of the medium temperature high pressure come out from outdoor heat exchanger 605 is divided into two strands: one flows to the second expansion switch valve 606 Entrance, at this point, second expansion switch valve 606 rise expansion valve action it is identical, play throttling action as restricting element, come out For low temperature and low pressure liquid.The aperture of second expansion switch valve 606 can give certain aperture according to actual needs, this aperture can According to the pressure for the pressure-temperature sensor being mounted between the outlet of indoor evaporator 602 and the entrance of gas-liquid separator 611 Power and temperature acquisition data calculate Refrigerant Superheat at Evaporator Outlet to adjust.Second expansion switch valve 606 outlet and interior The entrance of evaporator 602 is connected, and low temperature and low pressure liquid is evaporated in evaporator 602 indoors, and heat in absorption chamber reduces room Interior temperature so that from indoor evaporator 602 come out be low-temp low-pressure gas.Another plume enters to the first expansion valve 623 Mouthful, the aperture of the first expansion valve 623 can give certain aperture according to actual needs, this aperture board-like can be changed according to first The pressure and temperature of pressure-temperature sensor between the refrigerant outlet 620b of hot device 620 and the entrance of gas-liquid separator 611 Data are acquired to adjust.Cool down by the throttling of the first expansion valve 623, coming out from the first expansion valve 623 is low-temp low-pressure liquid Body.The outlet of first expansion valve 623 is connected with the refrigerant inlet 620a of the first plate heat exchanger 620, and low temperature and low pressure liquid is the Heat exchange is carried out with the hot water come out from battery pack 630 in one plate heat exchanger 620, so that from the first plate heat exchanger 620 Refrigerant outlet 620b is the gas of low-temp low-pressure out.The outlet of indoor evaporator 602 and the first plate heat exchanger 620 Refrigerant outlet 620b is connected via second one-way valve 627 and the first check valve 626 with gas-liquid separator 611 respectively, from first The refrigerant that the refrigerant that the refrigerant outlet 620b of plate heat exchanger 620 comes out comes out with the outlet from indoor evaporator 602 Converging, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure returns in compressor 604, A circulation is consequently formed.The flow direction of 600 apoplexy of HVAC assembly flows only through indoor evaporator 602, indoor 601 nothing of condenser at this time Wind passes through, and only flows through as refrigerant flow path.Also, in this mode, the first expansion valve 623 is opened, the second expansion switch valve 606 open, and the first water pump 628 is opened, and the second water pump 631 is closed, the first triple valve 634 and the power-off of the second triple valve 636.
Mode four: heat pump low-temperature heating circulation pattern.As shown in Figure 9 A, firstly, high temperature is discharged through overcompression in compressor 604 The gas of high pressure is connected with indoor condenser 601, and the gas of high temperature and pressure is condensed in condenser 601 indoors, to interior Heat is discharged, room temperature increases, so that being out the liquid of medium temperature high pressure from indoor condenser 601.Indoor condenser 601 Outlet is connected with the first expansion switch valve 603, and the first expansion switch valve 603 plays expansion valve at this time, as restricting element Throttling action is played, is out the liquid of low-temp low-pressure.Wherein, the aperture of the first expansion switch valve 603 can be according to reality Border demand gives certain aperture, this aperture can be according to the pressure-temperature sensor in the exit for being mounted on compressor 604 The number of temperature acquisition data (i.e. compressor exhaust temperature) is adjusted.First expansion switch valve 603 outlet and outdoor heat exchanger 605 are connected, and outdoor heat exchanger 605 absorbs the heat of outdoor air, are out the gas of low-temp low-pressure from outdoor heat exchanger 605 Body.The outlet of outdoor heat exchanger 605 is connected with the second expansion switch valve 606, and the second expansion switch valve 606 plays the work of switch valve at this time With only flowing through as a runner.Second expansion switch valve 606 outlet is connected with the entrance of indoor evaporator 602.Pass through air door Mechanism controls wind only flows to indoor condenser 601 without flowing to indoor evaporator 602 so that in indoor evaporator 602 without Heat exchange is only used as a runner, and what is come out is still the gas of low-temp low-pressure.Indoor evaporator 602 is single via second It is connected to valve 627 with gas-liquid separator 611, the liquid not being evaporated is separated by gas-liquid separator 611, last low-temp low-pressure Gas return in compressor 604, a circulation is consequently formed.The flow direction of 600 apoplexy of HVAC assembly flows only through indoor cold at this time Condenser 601, the calm process of indoor evaporator 602, only flows through as refrigerant flow path.Also, in this mode, the first expansion valve 623 close, and the first water pump 628 is closed, and the second water pump 631 is closed, the first triple valve 634 and the power-off of the second triple valve 636.
Mode five: engine low temperature heats ring mode.As shown in Figure 9 A, the high temperature coolant warp come out from engine 632 The second water pump 631, the first ptc heater 635, the entrance 634a of the first triple valve 634, outlet 634c are crossed, it is warm using interior Wind core 633 and air carry out the coolant liquid that heat exchange cooling is low temperature, using the entrance 636a of the second triple valve 636, go out Mouth 636b is flowed back into engine 632, thus completes a circulation.In this mode, compressor 604, first expands switch valve 603, the second expansion switch valve 606, the first expansion valve 623 are all in off-position, and the first water pump 628 is closed, the second water pump 631 The outlet the entrance 634a- 634c of operation, the first triple valve 634 is logical, and the outlet entrance 634a- 634b is obstructed, the second triple valve 636 Entrance 636a- exports 636b and leads to, and it is obstructed that entrance 636a- exports 636c.
Six: PTC mode battery heat cycles mode of mode.As shown in Figure 9 A, the height come out from the first ptc heater 635 Entrance 634a, outlet 634b of the warm coolant liquid by the first triple valve, flow to the first plate heat exchanger 620, go out with battery pack 630 Come cold water carry out heat exchange cooling be low temperature coolant liquid, using the entrance 636a of the second triple valve 636, outlet 636c, The first ptc heater 635 is flowed back by the second water pump 631, thus completes a circulation.By the first plate heat exchanger 620, It can be that battery pack is heated using engine coolant, increase the temperature of battery pack.In this mode, compressor 604, One expansion switch valve 603, second expands switch valve 606, the first expansion valve 623 all in off-position, the first water pump 628 fortune The outlet the entrance 634a- 634b of row, the operation of the second water pump 631, the first triple valve 634 is logical, and the outlet entrance 634a- 634c is obstructed, The outlet the entrance 636a- 636c of second triple valve 636 is logical, and it is obstructed that entrance 636a- exports 636b.
Mode seven: engine mode battery heat cycles mode.As shown in Figure 9 A, the high temperature come out from engine 632 is cold But liquid flows to the first plate heat exchanger 620 by the second water pump 631, the entrance 634a of the first triple valve 634, outlet 634b, with The cold water that battery pack 630 comes out carries out the coolant liquid that heat exchange cooling is low temperature, using the entrance of the second triple valve 636 636a, outlet 636b are flow back into engine 632, are thus completed engine mode battery and are heated a circulation.Pass through the first plate Formula heat exchanger 620 can be that battery pack is heated using engine coolant, increase the temperature of battery pack.In this mode, Compressor 604, first expands switch valve 603, second and expands switch valve 606, the first expansion valve 623 all in off-position, the The outlet the entrance 634a- 634b of the operation of one water pump 628, the operation of the second water pump 631, the first triple valve 634 is logical, and entrance 634a- goes out Mouth 634c is obstructed, and the outlet the entrance 636a- 636b of the second triple valve 636 is logical, and it is obstructed that entrance 636a- exports 636c.
Eight: PTC mode low temperature of mode heating power-up pond heat cycles mode.As shown in Figure 9 A, from the first ptc heater 635 high temperature coolants come out flow to the first triple valve 634, punish and flow in the first triple valve 634, pass through the first triple valve all the way 634 entrance 634a, outlet 634b to the first plate heat exchanger 620 carries out heat exchange cooling with the cold water that battery pack 630 comes out For the coolant liquid of low temperature, another way by entrance 634a, the outlet 634c of the first triple valve 634 arrive indoor heater cores 633 and Air carry out heat exchange cooling be low temperature coolant liquid, from the engine coolant of the first plate heat exchanger 620 outlet 620d and The refrigerant that indoor heater cores 633 flow out flows back to the second triple valve 636, then the entrance from the second triple valve 636 together again 636a, outlet 636c flow back into the first ptc heater 635 by the second water pump 631, thus complete a PTC mode low temperature system Heat power-up pond heat cycles.It can be that battery pack is heated using engine coolant by the first plate heat exchanger 620, Increase the temperature of battery pack.In this mode, compressor 604, first expands switch valve 603, second and expands switch valve 606, the One expansion valve 623 is all in off-position, the operation of the first water pump 628, the operation of the second water pump 631, the entrance of the first triple valve 634 634a- exports 634b and leads to, and entrance 634a- exports 634c and leads to, and the outlet the entrance 636a- 636b of the second triple valve 636 is obstructed, entrance It is logical that 636a- exports 636c.
Mode nine: engine mode low-temperature heating is powered on pond heat cycles mode.As shown in Figure 9 A, go out from engine 632 The high temperature coolant come punishes stream by the second water pump 631, in the first triple valve 634, all the way entering by the first triple valve 634 Mouth 634a, outlet 634b to the first plate heat exchanger 620, carrying out heat exchange cooling with the cold water that battery pack 630 comes out is low temperature Coolant liquid, another way by the first triple valve 634 entrance 634a, outlet 634c to interior heater cores 633 and air into Row heat exchange cooling is the coolant liquid of low temperature, exports 620d from the engine coolant of the first plate heat exchanger 620 and interior is warm The refrigerant that wind core 633 flows out flows back to the second triple valve 636, then the entrance 636a from the second triple valve 636, outlet together again 636b is flow back into engine 632, is thus completed an engine mode low-temperature heating and is powered on pond heat cycles.Pass through the first plate Formula heat exchanger 620 can be that battery pack is heated using engine coolant, increase the temperature of battery pack.In this mode, Compressor 604, first expands switch valve 603, second and expands switch valve 606, the first expansion valve 623 all in off-position, the The outlet the entrance 634a- 634b of the operation of one water pump 628, the operation of the second water pump 631, the first triple valve 634 is logical, and entrance 634a- goes out Mouth 634c is logical, and the outlet the entrance 636a- 636b of the second triple valve 636 is logical, and it is obstructed that entrance 636a- exports 636c.
To sum up, automotive thermal tube provided by the invention manages system, realizes interior summer in addition to can use heat pump air conditioning system Refrigeration and the demand of winter heating, there are also the functions of battery cooling and battery heating.By the first plate heat exchanger, can pass through The refrigerant and battery pack coolant liquid of heat pump air conditioning system carry out heat exchange, cool down to battery, and can pass through the cooling of engine Liquid and battery pack coolant liquid carry out heat exchange, heat to battery, using the heat exchange between three kinds of media, are suitable for different vehicle conditions Under effective use to the energy, so that battery is worked within the scope of suitable temperature always, thus improve the efficiency for charge-discharge of battery, Cruising ability and service life.In addition, the present invention can both realize air conditioning for automobiles in the case where not changing refrigerant circulation direction The refrigeration and heating of system, structure is simple, so that whole system pipeline arrangement is simple, is easy to produce in batches.
As described above, expansion switch valve is the valve simultaneously with expansion valve and switch valve function in invention, it can To be regarded as being the integrated of switch valve and expansion valve.It will be provided below a kind of example embodiment for expanding switch valve.
As shown in Figure 10, expansion switch valve mentioned above may include valve body 500, wherein be formed on the valve body 500 Import 501, outlet 502 and connection are in import 501 and export the inner flow passage between 502, are equipped with first on inner flow passage Spool 503 and the second spool 504, the first spool 503 make import 501 directly be connected to or disconnect connection, the second valve with outlet 502 Core 504 makes import 501 be connected to or disconnect connection by restriction 505 with outlet 502.
Wherein, " directly connection " that the first spool is realized refers to that the coolant that enters from the import 501 of valve body 500 can be with It crosses the first spool and passes through the outlet 502 that inner flow passage insusceptibly flows directly to valve body 500, what the first spool was realized " disconnecting connection " refers to that the coolant entered from the import 501 of valve body 500 can not cross the first spool and cannot pass through inside stream Road flows to the outlet 502 of valve body 500." being connected to by restriction " that second spool is realized refers to the import from valve body 500 501 coolants entered can cross the second spool and flow to the outlet 502 of valve body 500 after passing through the throttling of restriction, and the " disconnect connection " that two spools are realized refer to the coolant entered from the import 501 of valve body 500 can not cross the second spool and The outlet 502 of valve body 500 cannot be flowed to by restriction 505.
In this way, expansion switch valve of the invention can make from import by the control to the first spool and the second spool 501 coolants entered at least realize three kinds of states.That is, 1) off state；2) the direct connected state of the first spool 503 is crossed State；And 3) cross the throttling mode of communicating of the second spool 504.
Wherein, after the liquid refrigerant of high temperature and pressure throttles using restriction 505, the mist of low-temp low-pressure can be become Hydraulic refrigerant, can create conditions for the evaporation of refrigerant, i.e. the cross-sectional area of restriction 505 cross that is less than outlet 504 Sectional area, and by the second spool of control, the opening size of restriction 505 is adjustable, flows through restriction 505 with control Flow prevents the refrigeration because of the very few generation of refrigerant insufficient, and prevents from making compressor generate liquid hammer because refrigerant is excessive Phenomenon.That is, the cooperation of the second spool 504 and valve body 500 can to expand and close valve and have the function of expansion valve.
In this way, by installing the first spool 503 and the second spool 504 on the inner flow passage of same valve body 500, to realize The control of the on-off of import 501 and outlet 502 and/or throttling control function, structure is simple, is readily produced and installs, and works as this hair When the expansion switch valve of bright offer is applied to heat pump system, it is possible to reduce the refrigerant charge of entire heat pump system, reduce at This, simplifies piping connection, the more conducively oil return of heat pump system.
As a kind of illustrative inner mounting structure of valve body 500, as shown in Figure 10 to Figure 15, valve body 500 includes shape Valve seat 510 at inner flow passage and the first valve casing 511 and the second valve casing 512 that are mounted on the valve seat 510, the first valve casing 511 The first electromagnetic drive part 521 for driving the first spool 503 is inside installed, is equipped in the second valve casing 512 for driving the Second electromagnetic drive part 522 of two spools 504, the first spool 503 extend to the inside stream in valve seat 510 from the first valve casing 511 Road, the second spool 504 extend 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., electromagnetic coil, the control of power on/off can easily control The position of first spool 503, and then control import 501 and be directly connected to or disconnect connection with outlet 502；By being driven to the second electromagnetism Dynamic portion 522, e.g., electromagnetic coil, the control of power on/off can easily control the position of the second spool 504, thus control into Whether mouth 501 and outlet 502 are connected to restriction 505.In other words, shared import 501 and outlet have been installed in parallel in valve body 500 502 electric expansion valve and solenoid valve, it is thus possible to realize the on-off of expansion switch valve and/or the automation control of throttling, and Simplify pipeline trend.
For the spatial position for making full use of all directions for expanding switch valve, expansion switch valve and different piping connections are avoided Interference is generated, valve seat 510 is formed as polyhedral structure, the first valve casing 511,502 difference of the second valve casing 512, import 501 and outlet It is arranged on the different surfaces of the polyhedral structure, wherein the installation direction of the first valve casing 511 and the second valve casing 512 mutually hangs down Directly, the opening direction of import 501 and outlet 502 is mutually perpendicular to.In this way, import, export pipeline can be connected to polyhedron knot On the different surfaces of structure, it can be avoided that pipeline arrangement is in disorder, the problem of tangling.
As a kind of typical internal structure of expansion switch valve, as shown in Figure 10 to Figure 13, inner flow passage includes difference The first runner 506 and second flow channel 507 being connected to import 501, are formed on first runner 506 and the first spool 503 cooperates The first valve port 516, restriction 505 be formed in second flow channel 507 be formed as with the second spool 504 cooperate the second valve port 517, first runner 506 and second flow channel 507 are intersected in the downstream of the second valve port 517 and are connected to outlet 502.
That is, realizing closing or opening to the first valve port 516 by the position for converting the first spool 503, and then control It is connected to the truncation or conducting of the first runner 506 of import 501 and outlet 502, so as to realize above-described solenoid valve Connection or the function of disconnecting connection.Similarly, cutting to the second valve port 517 is realized by converting the position of the second spool 504 Disconnected or conducting, so as to realize the throttling function of electric expansion valve.
First runner 506 and second flow channel 507 can be respectively communicated with import 501 and outlet with any appropriate arrangement 502, for the whole occupied space for reducing valve body 500, as shown in figure 14, second flow channel 507 opens up in the same direction with outlet 502, and first Runner 506 be formed as with the orthogonal first through hole 526 of second flow channel 507, import 501 is by being provided with second flow channel 507 The second through-hole 527 on side wall is connected to second flow channel 507, and first through hole 526 and the second through-hole 527 connect respectively with import 501 It is logical.Wherein, first through hole 526 can be arranged or be arranged in parallel in spatial vertical with the second through-hole 527, and the present invention does not make this Limitation, all belong to the scope of protection of the present invention among.
For the whole occupied space for being further simplified valve body 500, as shown in Figure 17 to Figure 20, import 501 and 502 phases of outlet Mutually vertically it is provided on valve body 500.In this way, as shown in Figures 17 to 19, the axis of import 501 exports 502 axis (i.e. The axis of second flow channel 507) and the axis of first runner 506 it is vertically arranged two-by-two in space, to prevent the first spool 503 and second spool 504 mobile generation interference, and can maximumlly utilize valve body 500 inner space.
It as shown in Figure 13 and Figure 14, is the closing and opening that are easy to implement the first valve port 516, the first spool 503 is along moving Direction is with the coaxial laying of the first valve port 516 selectively to block or be detached from the first valve port 516.
For the closing and opening for being easy to implement the second valve port 517, the second spool 504 is along moving direction and the second valve port 517 It is coaxial to lay selectively to block or be detached from the second valve port 517.
Wherein, as shown in figure 16, reliability first runner 506 blocked for the first spool 503 of guarantee, the first spool 503 may include the first valve rod 513 and the first plug 523 for being connected to 513 end of the first valve rod, which uses In on the end face for being sealed against the first valve port 516 to block first runner 506.
For the opening size convenient for adjusting the restriction 505 of expansion switch valve, as shown in Figure 13 and Figure 14, the second spool 504 include the second valve rod 514, and the end of 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, 505 aperture of restriction for expanding switch valve can be adjusted by moving up and down for second spool 504, and Moving up and down for second spool 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 13, the second spool 504 is in extreme lower position, and the second spool 504 blocks the second valve port 517, system Cryogen cannot pass through restriction 505, i.e. the second valve port 517 completely；If expanding switch valve restriction 505 has aperture, such as Figure 14 It is shown, there is gap between the taper header structure and restriction 505 of the end of the second spool 504, flow to again after refrigerant throttling Outlet 502.It, can be by controlling the second electromagnetic drive part 522, so that the when if desired increasing the throttle opening of expansion switch valve Two spools 504 move up, so that taper header structure is far from restriction 505, to realize becoming larger for 505 aperture of restriction； On the contrary, can be driven mobile under 504 phase of the second spool when needing to reduce the aperture of restriction 505 of expansion switch valve.
In use, when only needing the solenoid valve function using expansion switch valve, as shown in Figure 13, Figure 16 and Figure 19, the One spool 503 is detached from the first valve port 516, and the first valve port 516 is in the open state, and the second spool 504 is in extreme lower position, and second Spool 504 blocks throttle orifice 505, and the refrigerant for flowing into inner flow passage from import 501 cannot pass through throttle orifice completely 505, the first valve port 516 can only be passed sequentially through, first through hole 526 flows into outlet 502.When solenoid valve power-off, the first spool 503 are moved to the left, and the first plug 523 and the separation of the first valve port 516, refrigerant can pass through from first through hole 526；Work as electromagnetism Valve is powered, and the first spool 503 moves right, and the first plug 523 and the fitting of the first valve port 516, refrigerant can not be from first through hole Pass through in 526.
It should be noted that the dotted line with the arrow in Figure 13 and Figure 19 represents refrigerant when using solenoid valve function Flow route and trend.
When only needing the electric expansion valve function using expansion switch valve, as shown in Figure 14 and Figure 20, the second valve port 517, i.e. restriction 505 is in the open state, and the first spool 503 blocks the first valve port 516, flows into inside stream from import 501 The refrigerant in road can not can only pass sequentially through the second through-hole 527, restriction 505 flows into outlet 502 by first through hole 526 In, and can move up and down the second spool 504 to adjust the size of the aperture of restriction 505.
It should be noted that the dotted line with the arrow in Figure 14 and Figure 20, which represents refrigerant, is using electric expansion valve function When flow route and trend.
When needing while using the solenoid valve function and electric expansion valve function of expansion switch valve, such as Figure 10, Tu17He Shown in Figure 18, wherein dotted line with the arrow represents the glide path and trend of refrigerant, and the first spool 503 is detached from the first valve Mouth 516, the first valve port 516 is in the open state, and restriction 505 is in the open state, and the refrigerant for flowing into inner flow passage can To export 502 along first runner 506 and the flow direction of second flow channel 507 respectively, to have the function of solenoid valve and electronic expansion simultaneously Valve function.
It should be understood that one of example of the above embodiment as just expansion switch valve, and and do not have to In the limitation present invention, other have the function of that the expansion switch valve of expansion valve and switch valve function is equally applicable to the present invention simultaneously.
The present invention also provides a kind of electric car, the above-mentioned automotive thermal tube including providing according to the present invention manages system.Wherein, The electric car can be hybrid vehicle.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (19)

1. a kind of automotive thermal tube manages system, which is characterized in that the automotive thermal tube reason system includes heat pump air conditioning system, battery pack Heat-exchange system, engine-cooling system and the first plate heat exchanger (620), the heat pump air conditioning system and the engine cool System is exchanged heat by first plate heat exchanger (620) and the battery pack heat-exchange system respectively, the heat pump air conditioning system Including HVAC assembly (600), compressor (604) and outdoor heat exchanger (605), the HVAC assembly (600) includes indoor condensation Device (601), indoor evaporator (602) and air door mechanism, to lead to the interior cold for selectively turning on for the air door mechanism The air duct of condenser (601) and/or the air duct for leading to the indoor evaporator (602), the outlet of the compressor (604) with it is described The entrance of indoor condenser (601) is connected to, the egress selection of the interior condenser (601) via first throttle branch or First through-flow branch is connected to the entrance of the outdoor heat exchanger (605), the egress selection of the outdoor heat exchanger (605) It is connected to via the second throttling branch or the second through-flow branch with the entrance of the indoor evaporator (602), the indoor evaporator (602) outlet is connected to the entrance of the compressor (604), the refrigerant inlet of first plate heat exchanger (620) (620a) cools down the outlet of branch (621) and the outdoor heat exchanger (605) via the battery of selective on or off Or it is connected to the entrance of the indoor evaporator (602), refrigerant outlet (620b) warp of first plate heat exchanger (620) It is connected to by battery cooling for reflux branch (622) with the entrance of the compressor (604), the heat pump air conditioning system further includes first It expands switch valve (603), the outlet of the entrance of first expansion switch valve (603) and the indoor condenser (601) should The outlet of first expansion switch valve (603) is connected to the entrance of the outdoor heat exchanger (605), and the first throttle branch is institute The throttling runner of the first expansion switch valve (603) is stated, the first through-flow branch is the logical of first expansion switch valve (603) Flow runner.
2. automotive thermal tube according to claim 1 manages system, which is characterized in that first plate heat exchanger (620) Refrigerant inlet (620a) is via the battery cooling branch (621) of selective on or off and the outdoor heat exchanger (605) Outlet, and be provided with the first expansion valve (623) on the battery cooling branch (621).
3. automotive thermal tube according to claim 1 manages system, which is characterized in that the automotive thermal tube reason system further includes the One switch valve (624), the egress selection of the outdoor heat exchanger (605) via it is described second throttling branch or described second Through-flow branch is connected to the entrance of the first switch valve (624), the outlet of the first switch valve (624) and the indoor steaming Send out the entrance connection of device (602), the refrigerant inlet (620a) of first plate heat exchanger (620) via selectivity conducting or The battery of cut-off cooling branch (621) is connected to the entrance of the first switch valve (624), and in the cooling branch of the battery (621) flow valve (625) are provided on.
4. automotive thermal tube according to claim 1 manages system, which is characterized in that in the battery cooling for reflux branch (622) the first check valve (626) are provided on.
5. automotive thermal tube according to claim 1 manages system, which is characterized in that the outlet of the indoor evaporator (602) It is connected to via second one-way valve (627) with the entrance of the compressor (604).
6. automotive thermal tube according to claim 1 manages system, which is characterized in that the first plate heat exchanger (620) string It is associated in the coolant circuit of the battery pack heat-exchange system, and is additionally provided in the coolant circuit and first plate Concatenated first water pump (628) of formula heat exchanger (620), deputy tank (629) and battery pack (630).
7. automotive thermal tube according to claim 1 manages system, which is characterized in that the engine-cooling system includes second Water pump (631), engine (632), indoor heater cores (633) and the first triple valve (634), second water pump (631) Outlet is connected to the entrance (634a) of first triple valve (634), two of first triple valve (634) export (634b, 634c) the engine coolant with the entrance of the indoor heater cores (633) and first plate heat exchanger (620) respectively Entrance (620c) connection, the outlet of the interior heater cores (633) and the engine of first plate heat exchanger (620) are cold But liquid outlet (620d) is connected to the coolant inlet of the engine (632), the cooling liquid outlet of the engine (632) It is connected to the entrance of second water pump (631).
8. automotive thermal tube according to claim 7 manages system, which is characterized in that the engine-cooling system further includes the One ptc heater (635) and the second triple valve (636), the outlet of the interior heater cores (633) and described first board-like are changed The engine coolant outlet (620d) of hot device (620) is connected to the entrance (636a) of second triple valve (636), described The first outlet (636b) of second triple valve (636) is connected to the coolant inlet of the engine (632), second threeway The second outlet (636c) of valve (636) is connected to the entrance of second water pump (631), and first ptc heater (635) sets It sets between the outlet of second water pump (631) and the entrance (634a) of first triple valve (634), or is arranged in institute It states between the entrance of the second water pump (631) and the second outlet (636c) of second triple valve (636).
9. automotive thermal tube according to claim 1 manages system, which is characterized in that the second through-flow branch road is provided with the Three switch valves (610), the second throttling branch road are provided with third expansion valve (609).
10. automotive thermal tube according to claim 9 manages system, which is characterized in that the automotive thermal tube reason system is applied to Electric car, the automotive thermal tube reason system further includes electromotor cooling system；
The heat pump air conditioning system further include: the second plate heat exchanger (612), wherein second plate heat exchanger (612) sets It sets in the described second through-flow branch, and second plate heat exchanger (612) is arranged in the electromotor cooling system simultaneously In.
11. automotive thermal tube according to claim 10 manages system, which is characterized in that second plate heat exchanger (612) Refrigerant inlet (612a) and the outdoor heat exchanger (605) outlet, the system of second plate heat exchanger (612) Cryogen outlet (612b) is connected to the entrance of the third switch valve (610).
12. automotive thermal tube described in 0 or 11 manages system according to claim 1, which is characterized in that the electromotor cooling system includes It is connected with second plate heat exchanger (612) with the motor, motor radiator (613) and third water pump (614) being formed into a loop.
13. automotive thermal tube according to claim 1 manages system, which is characterized in that the heat pump air conditioning system further includes the Two expansions switch valve (606), the entrance of second expansion switch valve (606) and the outlet of the outdoor heat exchanger (605), The outlet of second expansion switch valve (606) is connected to the entrance of the indoor evaporator (602), and the second throttling branch is The throttling runner of second expansion switch valve (606), the second through-flow branch are second expansion switch valve (606) Through-flow runner.
14. automotive thermal tube according to claim 13 manages system, which is characterized in that the automotive thermal tube reason system is applied to Electric car, the automotive thermal tube reason system further includes electromotor cooling system；
The heat pump air conditioning system further include: the second plate heat exchanger (612), wherein second plate heat exchanger (612) The outlet of refrigerant inlet (612a) and second expansion switch valve (606), second plate heat exchanger (612) Refrigerant outlet (612b) is connected to the entrance of the indoor evaporator (602), and second plate heat exchanger (612) is same When be arranged in the electromotor cooling system.
15. automotive thermal tube according to claim 14 manages system, which is characterized in that the electromotor cooling system includes motor Coolant liquid main line (616), first motor coolant liquid branch (617) and the second motor coolant liquid branch (618), the motor are cooling The first end on liquid main line (616) selectively with the first end of the first motor coolant liquid branch (617) or it is described second electricity The first end of machine coolant liquid branch (618) is connected to, the second end of the first motor coolant liquid branch (617) and second electricity The second end of machine coolant liquid branch (618) is connected to the second end on motor coolant liquid main line (616), wherein in the electricity Motor, motor radiator (613) and third water pump (614) are in series on machine coolant liquid main line (616), it is cold in the first motor But second plate heat exchanger (612) is in series on liquid branch (617).
16. automotive thermal tube according to claim 1 manages system, which is characterized in that the heat pump air conditioning system further includes gas The outlet of liquid/gas separator (611), the gas-liquid separator (611) is connected to the entrance of the compressor (604), the gas-liquid point The outlet of entrance and the indoor evaporator (602) from device (611), the refrigeration of first plate heat exchanger (620) Agent outlet (620b) is connected to via the battery cooling for reflux branch (622) with the entrance of the gas-liquid separator (611).
17. automotive thermal tube according to claim 1 manages system, which is characterized in that the HVAC assembly (600) further includes the Two ptc heaters (619), second ptc heater (619) are used to add the wind for flowing through the indoor condenser (601) Heat.
18. automotive thermal tube according to claim 17 manages system, which is characterized in that the second ptc heater (619) cloth Set the windward side or leeward side in the indoor condenser.
19. a kind of electric car, which is characterized in that managed including automotive thermal tube described according to claim 1 any one of -18 System.
CN201610305554.1A 2016-05-10 2016-05-10 Automotive thermal tube manages system and electric car Active CN107351622B (en)

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