CN107351625B - 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
CN107351625B
CN107351625B CN201610307088.0A CN201610307088A CN107351625B CN 107351625 B CN107351625 B CN 107351625B CN 201610307088 A CN201610307088 A CN 201610307088A CN 107351625 B CN107351625 B CN 107351625B
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China
Prior art keywords
heat exchanger
outlet
battery
valve
branch
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CN201610307088.0A
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Chinese (zh)
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CN107351625A (en
Inventor
黄健
叶梅娇
陈雪峰
汪孟瑛
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • B60H1/034—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from the cooling liquid of the propulsion plant and from an electric heating device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow

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

Abstract

The invention discloses a kind of automotive thermal tube reason system and electric cars, the system includes heat pump air conditioning system, battery pack heat-exchange system, first switch valve and the first plate heat exchanger, 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, and via the outlet of the battery of selective on or off heating branch and compressor, the refrigerant outlet of first plate heat exchanger is connected to via the battery cooling for reflux branch of selective on or off with the entrance of compressor, and the outlet of branch Yu first switch valve is heated to reflux via battery.It can be exchanged heat by the refrigerant and coolant liquid of battery water circulation system, to be cooled down or be heated to battery, battery be made to work within the scope of suitable temperature always, improve efficiency for charge-discharge, cruising ability and the service life of battery.

Description

Automotive thermal tube manages system and electric car
Technical field
The present invention relates to automotive air-conditioning systems, and in particular, to a kind of automotive thermal tube reason system and electric car.
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.China Patent Publication No. is that the utility model of CN205039220U discloses A kind of automobile power cell cooling system.Although the power battery cooling system can pass through evaporator to power electric in refrigeration Pond is cooled down, and power battery is close together with evaporator and exchanges heat, although feasible in principle, but reality is difficult on vehicle It is existing, because evaporator, generally all in air conditioning box body, cabinet space is limited, and the power battery of pure electric automobile is very big, generally It is placed in vehicle bottom.
Summary of the invention
In order to solve the problems in the existing technology, according to an aspect of the present invention, a kind of automotive thermal tube reason is provided System, wherein the automotive thermal tube reason system includes heat pump air conditioning system, battery pack heat-exchange system, first switch valve and first Plate heat exchanger, the heat pump air conditioning system include compressor, indoor condenser, indoor evaporator, outdoor heat exchanger, the pressure The outlet of contracting machine is connected to the entrance of the indoor condenser, the outlet of the interior condenser and entering for the first switch valve Mouth connection, is changed via first throttle branch or the first through-flow branch with the outdoor to the egress selection of the first switch valve The entrance of hot device is connected to, the egress selection of the outdoor heat exchanger via the second through-flow branch and the compressor entrance Connection is connected to via the second throttling branch with the entrance of the indoor evaporator, the outlet of the indoor evaporator and the pressure The entrance of contracting machine is connected to, and the refrigerant inlet of first plate heat exchanger is cooling via the battery of selective on or off Branch is connected to the outlet of the outdoor heat exchanger or with the entrance of the indoor evaporator, and via selective conducting Or the battery heating branch of cut-off is connected to the entrance of the compressor, the refrigerant outlet of first plate heat exchanger via The battery cooling for reflux branch of selective on or off is connected to the entrance of the compressor, and is heated to reflux via battery The outlet of branch and the first switch valve, first plate heat exchanger are connected on the battery pack heat-exchange system simultaneously Battery coolant circuit in.
Optionally, the refrigerant inlet of first plate heat exchanger is changed via the cooling branch of the battery with the outdoor The outlet of hot device, the cooling branch road of the battery are provided with the first expansion valve.
Optionally, automotive thermal tube reason system further includes second switch valve, and the first throttle branch is via described the Two switch valves are connected to the entrance of the indoor evaporator, and the refrigerant inlet of first plate heat exchanger is led via selectivity Logical or cut-off the cooling branch of battery is connected to the entrance of the second switch valve, and is arranged on the cooling branch road of the battery There is first flow valve.
Optionally, third switch valve is provided on the battery cooling for reflux branch road.
Optionally, the first check valve is provided on the battery cooling for reflux branch road, the third switch valve is via institute The first check valve is stated to be connected to the entrance of the compressor.
Optionally, second flow valve is provided on battery heating branch road.
Optionally, it is heated to reflux on branch road in the battery and is provided with second one-way valve.
Optionally, it is additionally provided in the coolant circuit of the battery pack heat-exchange system and the first plate heat exchanger string The first water pump, deputy tank and the battery pack of connection.
Optionally, the described first through-flow branch road is provided with the 4th switch valve, and the first throttle branch road is provided with the Two expansion valves.
Optionally, the heat pump air conditioning system further includes expansion switch valve, the entrance of the expansion switch valve and the interior The outlet of the outlet of condenser, the expansion switch valve is connected to the entrance of the outdoor heat exchanger, the first throttle branch Road is the throttling runner of the expansion switch valve, and the first through-flow branch is the through-flow runner of the expansion switch valve.
Optionally, the described second through-flow branch road is provided with the 5th switch valve, and the second throttling branch road is provided with the Three expansion valves.
Optionally, the outlet of the indoor evaporator is connected to via third check valve with the entrance of the compressor.
Optionally, the heat pump air conditioning system is applied to electric car, and the second through-flow branch road is additionally provided with second Plate heat exchanger, second plate heat exchanger are arranged in the electromotor cooling system of the electric car simultaneously.
Optionally, the described second through-flow branch road is provided with the 5th switch valve, the refrigerant of second plate heat exchanger The outlet of entrance and the outdoor heat exchanger, the refrigerant outlet of the plate heat exchanger enter with the 5th switch valve Mouth connection.
Optionally, the electromotor cooling system include connect with second plate heat exchanger be formed into a loop motor, Motor radiator and the second water pump.
Optionally, the heat pump air conditioning system further includes gas-liquid separator, the outlet of the indoor evaporator and the gas The entrance of liquid/gas separator is connected to, and the outlet of the outdoor heat exchanger is via the described second through-flow branch and the gas-liquid separator Entrance connection, the refrigerant outlet of first plate heat exchanger is via battery cooling for reflux branch and the gas-liquid separator Entrance connection, the outlet of the gas-liquid separator is connected to the entrance of the compressor.
Optionally, the heat pump air conditioning system further includes ptc heater, which flows through the room for heating The wind of inner condenser.
Optionally, the windward side or leeward side of the indoor condenser is arranged in the ptc heater.
According to the second aspect of the invention, a kind of electric car is provided, including above-described automotive thermal tube manages system.
Sky can be realized in the case where not changing refrigerant circulation direction in automotive thermal tube reason system provided by the invention Adjust the refrigeration and heat-production functions of heat pump system.In addition, cold by the cooling branch of battery, the first plate heat exchanger and battery due to increasing But that reflux branch collectively constitutes and that indoor evaporator is in parallel for the refrigerant diverter branch cooling to battery, and Increase is heated to reflux branch by battery heating branch, the first plate heat exchanger and battery and collectively constitutes and indoor condenser and first The refrigerant diverter branch for heating to battery that branch where switch valve is in parallel, can be directly arranged at room to avoid battery On interior evaporator, it is conducive to arrangement.In addition, automotive thermal tube reason system can be by battery water circulation system, first with refrigeration Agent makes coolant liquid cool down or heat up, and recycles coolant liquid to be cooled down or heated to battery, so that battery is always suitable Within the temperature range of work, to improve the efficiency for charge-discharge of battery, cruising ability and service life.
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 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention；
Fig. 6 is a kind of structural schematic diagram of the automotive thermal tube reason system of embodiment according to the present invention；
Fig. 7 is the structural schematic diagram of the automotive thermal tube reason system of another embodiment according to the present invention；
Fig. 8 is the overlooking structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Fig. 9 is the schematic diagram of the section structure crossed by Fig. 8 middle line AB-AB, wherein the first valve port and the second valve port are located In opening state；
Figure 10 is the positive structure diagram along a visual angle 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 Fig. 8 middle line AB-AB, wherein the first valve port is in the open state, Second valve port is in closed state；
Figure 12 is the schematic diagram of the section structure crossed by Fig. 8 middle line AB-AB, wherein the first valve port is in closed state, Second valve port is in the open state；
Figure 13 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 14 is the schematic diagram of the section structure crossed by Figure 13 middle line AC-AC, wherein the first valve port is in open shape State, the second valve port are in closed state；
Figure 15 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 16 is the partial enlarged view in the portion A in Figure 15；
Figure 17 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 18 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, 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.
In the present invention, electric car may include pure electric automobile, hybrid vehicle, fuel cell car.
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 and air door mechanism (not shown), wherein air door mechanism can be used for leading to indoor evaporator 602 and indoor condensation The air duct of device 601.In addition, the system also includes compressors 604 and outdoor heat exchanger 605.Wherein, HVAC assembly 600 can be with Including indoor condenser 601 and indoor evaporator 602.The outlet of compressor 604 is connected to the entrance of indoor condenser 601, room The egress selection of inner condenser 601 via first throttle branch or the entrance of the first through-flow branch and outdoor heat exchanger 605 Connection is connected to or passes through with the entrance of indoor evaporator 602 via the second throttling branch to the egress selection of outdoor heat exchanger 605 It is connected to by the entrance of the second through-flow branch compressor 604, 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 expansion switch valve 603, the outlet of the entrance of the expansion switch valve 603 and indoor condenser 601, the outlet and room of the expansion switch valve 603 The entrance of external heat exchanger 605 is connected to, wherein first throttle branch is the throttling runner for expanding switch valve 603, the first through-flow branch For the through-flow runner for expanding 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 the 4th switch Valve 608 and the second expansion valve 607, wherein the first through-flow branch road is provided with the 4th switch valve 608, and first throttle branch road is set It is equipped with the second expansion valve 607.Specifically, as shown in Fig. 2, the outlet of indoor condenser 601 is via the 4th switch valve 608 and outdoor The entrance connection of heat exchanger 605 to form the first through-flow branch, the outlet of indoor condenser 601 via the second expansion valve 607 with The entrance of outdoor heat exchanger 605 is connected to form first throttle branch.When system is under high-temperature refrigeration mode, the 4th switch Valve 608 is connected, and 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 low temperature heating mode, the second expansion valve 607 conducting, the 4th switch valve 608 is closed, The outlet of indoor condenser 601 is connected to via first throttle branch with the entrance of outdoor heat exchanger 605.
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 Expand switch valve 603, that is, embodiment shown in FIG. 1.
It is similar with the implementation of the first through-flow branch and first throttle branch in the embodiment of above-mentioned replacement, such as Shown in Fig. 1, the second through-flow branch road is provided with the 5th switch valve 610, and the second throttling branch road is provided with third expansion valve 609. Specifically, as shown in figure 3, the outlet of outdoor heat exchanger 605 be connected to via the 5th switch valve 610 with the entrance of compressor 604 with The second through-flow branch is formed, the outlet of outdoor heat exchanger 605 connects via third expansion valve 609 and the entrance of indoor evaporator 602 It passes to form the second throttling branch.When system is under high-temperature refrigeration mode, third expansion valve 609 is connected, the 5th switch valve 610 close, and the outlet of outdoor heat exchanger 605 is connected to via the second throttling branch with the entrance of indoor evaporator 602.At system When under low temperature heating mode, the 5th switch valve 610 conducting, third expansion valve 609 is closed, the outlet warp of outdoor heat exchanger 605 It is connected to by the second through-flow branch with the entrance of compressor 604.
Fig. 3 shows the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention.Such as Fig. 3 institute Show, which can also include gas-liquid separator 611 and third check valve 615, wherein indoor evaporator 602 Outlet is connected to the entrance of gas-liquid separator 611, and the outlet of gas-liquid separator 611 is connected to the entrance of compressor 604.In this way, The refrigerant flowed out through indoor evaporator 602 can first pass around gas-liquid separator 611 and carry out gas-liquid separation, the gas isolated Body is flowed back into again in compressor 604, thus prevent liquid refrigerant from entering compressor 604 and damaging compressor 604, so as to To extend the service life of compressor 604, and improve the efficiency of entire heat pump air conditioning system.The outlet of indoor evaporator 602 is logical Third check valve 615 is crossed to be connected to the entrance of gas-liquid separator 611.Here, setting third check valve 615 is in order to prevent low Refrigerant is back to indoor evaporator 602 under warm heating mode (described in detail below), influences heating effect.
Under low temperature heating mode, in order to improve heating ability, it is preferable that as shown in figure 4, in entire heat pump air conditioning system In be provided with the second plate heat exchanger 612, the motor which is also disposed in electric car simultaneously is cooling In system.In this way, the waste heat that can use electromotor cooling system gives air-conditioning system refrigerant heat, so that compressor can be improved 604 suction temperature and inspiratory capacity.Second plate heat exchanger 612 can arbitrarily be arranged in the 5th switch valve 610 upstream or under Trip.In the embodiment illustrated in fig. 4, the upstream of the 5th switch valve 610 is arranged in the second plate heat exchanger 612, that is, the second plate The refrigerant inlet 612a of formula heat exchanger 612 and the outlet of outdoor heat exchanger 605, the refrigeration of the second plate heat exchanger 612 Agent outlet 612b is connected to the entrance of the 5th switch valve 610.(not shown) in another embodiment, the second plate heat exchanger 612 are arranged in the downstream of the 5th switch valve 610, that is, the refrigerant inlet 612a and the 5th switch valve of the second plate heat exchanger 612 The refrigerant outlet 612b of 610 outlet, the second plate heat exchanger 612 is connected to the entrance of gas-liquid separator 611.
At the same time, the second plate heat exchanger 612 is arranged in electromotor cooling system simultaneously.As shown in figure 4, motor is cooling System may include the motor, motor radiator 613 and the second 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.System Cryogen returns in compressor 604 after the 5th switch valve 610.
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. 5 is the structural schematic diagram of the heat pump air conditioning system of another embodiment according to the present invention.As shown in figure 5, HVAC assembly 600 can also include ptc heater 619, the ptc heater 619 be used for flow through the wind of indoor condenser 601 into Row heating.
In the present invention, ptc heater 619 can be high pressure PTC (being driven by vehicle high-tension battery), voltage range: 200V-900V.Alternatively, ptc heater 619 or low pressure PTC (driving of 12V or 24V battery), voltage range: 9V- 32V.In addition, this ptc heater 619 can be by several or several pieces of PTC ceramics piece modules and radiating fin form one it is complete Whole 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.And And in order to improve the heating effect to the wind for flowing through indoor condenser 601, which can be with indoor condenser 601 are arranged in parallel.In other embodiments, which can also be arranged in blowing for the cabinet of HVAC assembly 600 At foot air port and defrosting outlet, it can also be arranged at the air port of defrosting duct.
It is cold with interior if ptc heater 619 to be arranged in the windward side or leeward side of cabinet interior room inner condenser 601 Condenser 601 be arranged in parallel, can the grooving on cabinet shell, ptc heater 619, which is inserted perpendicularly into, puts cabinet into, can also be indoors Welding support on 601 side plate of condenser, ptc heater 619 are fixed by screws on the bracket of indoor condenser 601.If Ptc heater 619 is arranged in the blowing at foot air port and defrosting outlet of cabinet, or is arranged at the air port of defrosting duct, can be led to Screw is crossed to be directly anchored 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, 619 auxiliary heating heating of ptc heater can be run, it is possible thereby to heating capacity is small when eliminating heat pump air conditioning system low-temperature heating, it is whole The defects of vehicle defrosting-defogging is slow, and heating effect is bad.
Fig. 6 is a kind of structural schematic diagram of the automotive thermal tube reason system of embodiment according to the present invention.As shown in fig. 6, It may include heat pump air conditioning system described above, battery pack heat-exchange system and the first plate-type heat-exchange that the automotive thermal tube, which manages system, Device 620, wherein the refrigerant inlet of the first plate heat exchanger 620 via selective on or off the cooling branch of battery with The outlet of outdoor heat exchanger 605 or the entrance connection of indoor evaporator 602, the refrigerant outlet warp of the first plate heat exchanger 620 It is connected to by battery cooling for reflux branch with the entrance of compressor 604, the first plate heat exchanger 620 is connected on battery pack heat exchange simultaneously In the battery coolant circuit of system.
That is, being by increasing by battery cooling branch, the first plate heat exchanger as main inventive concept of the invention 620 and battery cooling for reflux branch collectively constitutes and indoor evaporator 602 is in parallel for the refrigerant cooling to battery Diverter branch, in this way, refrigerant is segmented into two strands: wherein one refrigerant when high-temperature refrigeration is powered under the refrigerating mode of pond Indoor evaporator 602 is flowed to, and is evaporated in evaporator 602 indoors, indoor environment heat is absorbed, reduces room temperature；It is another The first plate heat exchanger of stock refrigerant flow direction 620, and it is cold by the battery of the first plate heat exchanger 620 and battery pack heat-exchange system But the coolant liquid in liquid circuit exchanges heat, and absorbs the heat of coolant liquid, and then the cooling to battery pack 622 may be implemented.
In the present invention, there are two types of modes for the connection type of the refrigerant inlet of the first plate heat exchanger 620: in a kind of reality It applies in mode, as shown in fig. 6, the refrigerant inlet of the first plate heat exchanger 620 can be via the electricity of selective on or off The outlet of pond cooling branch and outdoor heat exchanger 605.Specifically, the first expansion valve can be set on the cooling branch road of battery 621.In this way, can be according to actual needs by opening or closing the first expansion valve 621 to control whether refrigerant can flow into To the refrigerant inlet of the first plate heat exchanger 620.That is, the cooling branch of control battery be it is in the conductive state, be in and cut Only state.
In this embodiment, in the case where high-temperature refrigeration is powered on pond refrigerating mode, from the medium temperature of outdoor heat exchanger 605 out The refrigerant of high pressure is directly divided into two strands: one flows to third expansion valve 609；Another plume is to the first expansion valve 621.Change speech It, refrigerant is to carry out reducing pressure by regulating flow respectively on every road Tiao Zhi again after shunting at this time.
In another embodiment, as shown in fig. 7, automotive thermal tube reason system further includes the 4th switch valve 626, the second section Stream branch is connected to via the 4th switch valve 626 with the entrance of indoor evaporator 602.Specifically, embodiment shown in Fig. 7 In, the outlet of third expansion valve 609 is connected to via the 4th switch valve 626 with the entrance of indoor evaporator 602.First plate-type heat-exchange The refrigerant inlet of device 620 is connected to via the cooling branch of battery of selective on or off with the entrance of the 4th switch valve 626, And first flow valve 627 is provided on the cooling branch road of battery.
In this way, can be by control first flow valve 627 to control whether refrigerant can flow into the first plate-type heat-exchange The refrigerant inlet of device 620, that is, the cooling branch of control battery be it is in the conductive state, be in off state.In addition, control First flow valve 627 processed can also regulate and control the size that refrigerant flows into the flow of the first plate heat exchanger 620 according to actual needs.
In this embodiment, in the case where high-temperature refrigeration is powered on pond refrigerating mode, from the medium temperature of outdoor heat exchanger 605 out The refrigerant of high pressure is divided into two strands after the throttling of third expansion valve 609: one flows to the 4th switch valve 626, another plume To first flow valve 627, wherein the function of the distribution of the flow proportional of two strands of refrigerants may be implemented in first flow valve 627.This When, refrigerant is first to carry out reducing pressure by regulating flow on main line then to be shunted again.
In order to prevent under low temperature heating mode, the refrigerant of low-temp low-pressure is back in the first plate heat exchanger 620, In Battery cooling for reflux branch road is provided with the first check valve 628.That is, the first check valve 628 can only uniaxially allow refrigerant from The refrigerant outlet of first plate heat exchanger 620 flows to the entrance of compressor 604, and cannot flow round about.
Specifically, it is additionally provided in the coolant circuit of battery pack heat-exchange system concatenated with the first plate heat exchanger 620 First water pump 624, deputy tank 625 and battery pack 622.
For example, in one embodiment, the cooling liquid outlet of battery pack 622 and the coolant inlet of deputy tank 625 connect Logical, the cooling liquid outlet of deputy tank 625 is connected to the coolant inlet of the first water pump 624, the cooling liquid outlet of the first water pump 624 It is connected to the coolant inlet of the first plate heat exchanger 620, the cooling liquid outlet and battery pack 622 of the first plate heat exchanger 620 Coolant inlet connection, be consequently formed battery pack cooling/heating circulation.
As above, compressor 604 is damaged to prevent liquid refrigerant from entering compressor 604, so as to extend compression The service life of machine 604, and the efficiency of entire heat pump air conditioning system is improved, gas-liquid separator is provided in heat pump air conditioning system 611.As shown in Figure 6 and Figure 7, the entrance of gas-liquid separator 611 in addition to indoor evaporator 602 outlet and the 5th switch valve Except 610 connections, the refrigerant outlet of the first plate heat exchanger 620 is also via battery cooling for reflux branch and gas-liquid separator 611 entrance connection.In other words, gas-liquid point can also be first passed around from the liquid refrigerant that the first plate heat exchanger 620 comes out Gas-liquid separation is carried out from device 611, the gas isolated is flowed back into again in compressor 604, to prevent liquid refrigerant from entering Compressor 604 and damage compressor 604.
It is returned in the structural schematic diagram of automotive thermal tube reason system shown in Fig. 7 below.As shown in fig. 7, within the system, vapour Vehicle heat management system can also include first switch valve 630, wherein the outlet of indoor condenser 601 and first switch valve 630 Entrance connection, the egress selection of first switch valve 630 via first throttle branch or the first through-flow branch and outdoor heat exchange The entrance of device 605 is connected to.Specifically as shown in fig. 7, the outlet of first switch valve 630 can be via expansion switch valve 603 and outdoor The entrance of heat exchanger 605 is connected to.In addition, the refrigerant inlet of the first plate heat exchanger 620 is via selective on or off Battery heats the outlet of branch and compressor 604, and the refrigerant outlet of the first plate heat exchanger 620 heats back via battery The outlet of branch and first switch valve 630 is flowed, the first plate heat exchanger 620 is connected on the electricity of battery pack heat-exchange system simultaneously In the coolant circuit of pond.
That is, being by between indoor condenser 601 and expansion switch valve 603 as another inventive concept of the invention Increase first switch valve 630, and increases connection in the refrigerant inlet and indoor condenser 601 of the first plate heat exchanger 620 Battery between entrance heats branch, and connection in the refrigerant outlet and first switch valve 630 of the first plate heat exchanger 620 Outlet between battery be heated to reflux branch, wherein battery heating branch, the first plate heat exchanger 620 and battery heat back Stream branch collectively constitutes one and is used for what the branch where indoor condenser 601 and first switch valve 630 was in parallel to battery The refrigerant diverter branch of heating.In this way, when low temperature heating adds under battery-heated model, from the high temperature of compressor 604 out The refrigerant of high pressure is segmented into two strands: wherein in one refrigerant flow direction room condenser 601 entrance, condense heat release, increase Indoor environment temperature, the outlet of indoor condenser 601 are the liquid refrigerant of medium temperature high pressure, the outlet of indoor condenser 601 and The entrance of first switch valve 630 is connected, another strand of the first plate heat exchanger of refrigerant flow direction 620, and passes through the first plate-type heat-exchange Device 620 exchanges heat with the coolant liquid in the battery coolant circuit of battery pack heat-exchange system, and coolant liquid absorbs refrigerant release Heat, and then the heat temperature raising to battery pack may be implemented.
To heat branch convenient for whether control refrigerant flows through battery, second flow valve is provided on battery heating branch road 631.In this way, when needing to heat battery, for example, second flow valve 631 can be opened under battery-heated model, At this point, refrigerant can flow through the first plate heat exchanger 620, heat is provided and gives battery pack heat-exchange system.When not needing to battery When being heated, for example, second flow valve 631 can be closed under battery refrigerating mode, prevent the refrigerant of high temperature and pressure into Enter the first plate heat exchanger 620 and heat temperature raising is carried out to battery, the temperature of battery is caused to further increase.In addition, second flow Valve 631 also has the function of distributing the ratio of two strands of refrigerant flows.
To prevent under battery-heated model, from the cryogenic high pressure of the refrigerant outlet of the first plate heat exchanger 620 out The refrigerant of liquid flow directly into compressor 604, cause the damage to compressor, be provided on battery cooling for reflux branch road Third switch valve 633.In this way, when system is under battery-heated model, it can be with third switch valve 633 be closed, so that from first The refrigerant outlet of plate heat exchanger 620 come out cryogenic high pressure refrigerant all via battery be heated to reflux branch flow to it is swollen Swollen switch valve 603.
As above-mentioned, in order to prevent under low temperature heating mode, the refrigerant of low-temp low-pressure is back to the first plate heat exchanger In 620, the first check valve 628 is provided on battery cooling for reflux branch road.Wherein, third switch valve 633 is unidirectional via first Valve 628 is connected to the entrance of compressor 604.
To prevent under battery refrigerating mode, the gas refrigerant of the high temperature and pressure come out from indoor condenser 601 passes through After first switch valve 630, it is heated to reflux the refrigerant outlet that branch flows to the first plate heat exchanger 620 along battery, in battery It is heated to reflux branch road and is provided with second one-way valve 632.That is, second one-way valve 632 uniaxially can allow refrigerant from first The refrigerant outlet flow direction expansion switch valve 603 of plate heat exchanger 620, and cannot flow in opposite direction.
It will carry out the automotive thermal tube that the present invention is described in detail provides by taking Fig. 6 as an example below and manage system in different operating modes Under cyclic process and principle.It should be understood that the system under other embodiments (for example, embodiment shown in Fig. 7) Cyclic process and principle with Fig. 6 be it is similar, just no longer repeat one by one herein.
Mode one: high-temperature refrigeration mode.System in this mode when, whole system forms high-temperature refrigeration circulation System.As shown in fig. 6, firstly, gas of the compressor 604 through overcompression discharge high temperature and pressure, is connected with indoor condenser 601. At this point, control wind without indoor condenser 601 by air door mechanism, due to calm process, condenser 601 indoors It not will do it heat exchange inside, which only uses as runner, and the indoor outlet of condenser 601 is still high temperature at this time The gas of high pressure.The indoor outlet of condenser 601 is connected with expansion switch valve 603, expands switch valve 603 at this time and plays switch valve work With, only flowed through as runner, at this time expand switch valve 603 outlet still be high temperature and pressure gas.Expand switch valve 603 outlet with Outdoor heat exchanger 605 is connected, and outdoor heat exchanger 605 and outdoor air exchange heat, and heat is dispersed into air, outdoor heat exchanger 605 outlets are the liquid of medium temperature high pressure.At this point, the 5th switch valve 610 is closed, the first expansion valve 621 is closed, outdoor heat exchanger 605 outlets are connected with third expansion valve 609, and third expansion valve 609 plays throttling action as restricting element, and outlet is low temperature Low pressure liquid.609 aperture of third expansion valve can give certain aperture according to actual needs, this aperture can be according to being mounted on The pressure and temperature of pressure-temperature sensor between the outlet of indoor evaporator 602 and the entrance of gas-liquid separator 611 acquires Data calculate indoor evaporator 602 and export refrigerant superheat degree to adjust.The outlet of third expansion valve 609 and indoor evaporator 602 Entrance be connected, low temperature and low pressure liquid is evaporated in evaporator 602 indoors, so that the outlet of indoor evaporator 602 is low temperature The gas of low pressure.The outlet of indoor evaporator 602 is connected with the entrance of third check valve 615, the outlet of third check valve 615 with The entrance of gas-liquid separator 611 is connected, and the liquid not being evaporated is separated by gas-liquid separator 611, last low-temp low-pressure Gas returns in compressor 604, and a circulation is consequently formed.The flow direction of 600 apoplexy of HVAC assembly flows only through indoor evaporation at this time Device 602, the calm process of indoor condenser 601, only flows through as refrigerant flow path.
Mode two: battery refrigerating mode.System in this mode when, battery pack heat-exchange system formed a battery Packet cooling recirculation system.As shown in fig. 6, gas of the compressor 604 through overcompression discharge high temperature and pressure, with indoor condenser 601 It is connected.At this point, control wind without indoor condenser 601 by air door mechanism, due to calm process, condense indoors It not will do it heat exchange in device 601, which only uses as runner, and the indoor outlet of condenser 601 at this time is still The gas of high temperature and pressure.The indoor outlet of condenser 601 is connected with expansion switch valve 603, expands switch valve 603 at this time and plays switch valve Effect, only flows through as runner, and expanding the outlet of switch valve 603 at this time still is the gas of high temperature and pressure.Switch valve 603 is expanded to export It is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and outdoor air exchange heat, and heat are dispersed into air, outdoor heat exchanger 605 outlets are the liquid of medium temperature high pressure.At this point, the 5th switch valve 610 is closed, third expansion valve 609 is closed, outdoor heat exchanger 605 outlets are connected with the first expansion valve 621, and the first expansion valve 621 plays throttling action as restricting element, and outlet is low temperature Low pressure liquid.First expansion valve, 621 aperture can give certain aperture according to actual needs, this aperture can be according to being mounted on The pressure and temperature of pressure-temperature sensor between the outlet of first plate heat exchanger 620 and the entrance of gas-liquid separator 611 Acquisition data calculate refrigerant superheat degree to adjust.First expansion valve 621 is exported to be entered with the refrigerant of the first plate heat exchanger 620 Mouth is connected, and low temperature and low pressure liquid exchanges heat in the first plate heat exchanger 620 with the hot water come out from battery pack 622, so that The refrigerant outlet of first plate heat exchanger 620 is the gas of low-temp low-pressure.The refrigerant outlet of first plate heat exchanger 620 with The entrance of first check valve 628 is connected, and the outlet of the first check valve 628 is connected with the entrance of gas-liquid separator 611, not evaporating Complete liquid is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns in compressor 604, is consequently formed one Circulation.The flow direction of 600 apoplexy of HVAC assembly flows only through indoor evaporator 602 at this time, and the calm process of indoor condenser 601 is only made It is flowed through for refrigerant flow path.
Mode three: high-temperature refrigeration is powered on pond refrigerating mode.System in this mode when, whole system formed a height Temperature refrigeration while battery cooling recirculation system.As shown in fig. 6, firstly, gas of the compressor 604 through overcompression discharge high temperature and pressure Body is connected with indoor condenser 601.At this point, controlling wind without indoor condenser 601, due to calm warp by air door mechanism It crosses, therefore, not will do it heat exchange in condenser 601 indoors, which only uses as runner, at this time room The outlet of inner condenser 601 is still the gas of high temperature and pressure.The indoor outlet of condenser 601 is connected with expansion switch valve 603, swollen at this time Swollen switch valve 603 plays switch valve action, only flows through as runner, and expanding the outlet of switch valve 603 at this time still is the gas of high temperature and pressure Body.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 and outdoor air exchange heat, and heat is dissipated It is dealt into air, the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure.At this point, the 5th switch valve 610 is closed, the first expansion Valve 621 is opened, and the outlet of outdoor heat exchanger 605 is connected with third expansion valve 609 and the first expansion valve 621 respectively.At this point, from outdoor The liquid for the medium temperature high pressure that heat exchanger 605 comes out is divided into two strands: one flows to the entrance of third expansion valve 609, third expansion valve 609 are used as restricting element to play throttling action, and outlet is low temperature and low pressure liquid.609 aperture of third expansion valve can be according to reality Border demand gives certain aperture, this aperture can be according to the outlet and gas-liquid separator 611 for being mounted on indoor evaporator 602 The pressure and temperature acquisition data of pressure-temperature sensor between entrance calculate indoor evaporator 602 and export refrigerant superheat Degree is to adjust.The outlet of third expansion valve 609 is connected with the entrance of indoor evaporator 602, low temperature and low pressure liquid evaporator indoors It is evaporated in 602, so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure, the outlet and third of indoor evaporator 602 The entrance of check valve 615 is connected.For another plume to the entrance of the first expansion valve 621, the aperture of the first expansion valve 621 can basis Certain aperture is given in actual demand, this aperture can refrigerant outlet according to the first plate heat exchanger 620 and gas-liquid separation The pressure and temperature acquisition data of pressure-temperature sensor between the entrance of device 611 calculate refrigerant superheat degree to adjust.The One expansion valve 621 plays throttling action as restricting element, and outlet is low temperature and low pressure liquid.First expansion valve 621 outlet with The refrigerant inlet of first plate heat exchanger 620 is connected, and low temperature and low pressure liquid is in the first plate heat exchanger 620 and from battery pack 622 hot water come out carry out heat exchange, so that the refrigerant outlet of the first plate heat exchanger 620 is the gas of low-temp low-pressure, the The refrigerant outlet of one plate heat exchanger 620 is connected with the first check valve 628.The outlet of third check valve 615 and first is unidirectionally The outlet of valve 628 is connected with gas-liquid separator 611 respectively, the refrigerant come out from the outlet of the first check valve 628 with from first The refrigerant that the outlet of check valve 628 comes out converges, and the liquid not being evaporated is separated by gas-liquid separator 611, last low The gas of warm low pressure returns in compressor 604, and a circulation is consequently formed.The flow direction of 600 apoplexy of HVAC assembly flows only through at this time Indoor evaporator 602, the calm process of indoor condenser 601, only flows through as refrigerant flow path.
Mode four: low temperature heating mode.System in this mode when, whole system forms low temperature heating circulation System.As shown in fig. 6, firstly, compressor 604 through overcompression discharge high temperature and pressure gas, be connected with indoor condenser 601, At this point, indoor condenser 601 has a wind process, the gas of high temperature and pressure is condensed in condenser 601 indoors, so that indoor cold The outlet of condenser 601 is the liquid of medium temperature high pressure.The indoor outlet of condenser 601 is connected with expansion switch valve 603, at this time expansion switch Valve 603 plays expansion valve, plays throttling action as restricting element, outlet is the liquid of low-temp low-pressure.Wherein, it expands The aperture of switch valve 603 can give certain aperture according to actual needs, this aperture can be according to being mounted on compressor 604 The number of the temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor in exit is adjusted.Expansion switch The outlet of valve 603 is connected with the entrance of outdoor heat exchanger 605, and outdoor heat exchanger 605 absorbs the heat of outdoor air, outdoor heat exchanger 605 outlets are the gas of low-temp low-pressure.At this point, the 5th switch valve 610 is opened, third expansion valve 609 is closed, the first expansion valve 621 close, and refrigerant is directly entered in gas-liquid separator 611 without indoor evaporator 602, and the liquid not being evaporated passes through gas Liquid/gas separator 611 separates, and the gas of last low-temp low-pressure returns in compressor 604, and a circulation is consequently formed.
Mode five: battery-heated model.System in this mode when, battery pack heat-exchange system formed a battery pack Cooling recirculation system.As shown in fig. 6, firstly, the gas of high temperature and pressure is discharged through overcompression for compressor 604, with second flow valve 631 are connected, at this point, second flow valve 631 is opened, first switch valve 630 is closed, and the outlet of second flow valve 631 is that high temperature is high The gas of pressure, the outlet of second flow valve 631 are connected with the first plate heat exchanger 620, and the gas of high temperature and pressure is board-like first It exchanges heat in heat exchanger 620 with the cold water come out from battery pack 622, so that the refrigerant outlet of the first plate heat exchanger 620 For the liquid of medium temperature high pressure.The refrigerant outlet of first plate heat exchanger 620 is connected to expansion switch by second one-way valve 632 The entrance of valve 603 expands switch valve 603 at this time and plays expansion valve, plays throttling action as restricting element, export For the liquid of low-temp low-pressure.Wherein, the aperture for expanding switch valve 603 can give certain aperture according to actual needs, this is opened Degree can be according to temperature acquisition data (the i.e. compressor air-discharging of the pressure-temperature sensor in the exit for being mounted on compressor 604 Temperature) number adjust.The outlet of expansion switch valve 603 is connected with the entrance of outdoor heat exchanger 605, and outdoor heat exchanger 605 is inhaled The heat of outdoor air is received, the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.At this point, the 6th switch valve 610 is opened, the Three expansion valves 609 are closed, and the first expansion valve 621 is closed, and refrigerant is directly entered gas-liquid separator without indoor evaporator 602 In 611, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns in compressor 604, A circulation is consequently formed.
Mode six: low temperature heating adds battery-heated model.System in this mode when, battery pack heat-exchange system is formed One battery pack heating circulation system.
As shown in fig. 7, firstly, compressor 604 through overcompression discharge high temperature and pressure gas, respectively with indoor condenser 601 are connected is connected with the entrance of second flow valve 631, at this point, the gas of the high temperature and pressure come out from compressor 604 is divided into two Stock: one is condensed in condenser 601 indoors, so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure, it is indoor cold The outlet of condenser 601 is connected with the entrance of first switch valve 630.Another stock-traders' know-how, which crosses second flow valve 631 and flows into first, board-like changes Hot device 620 carries out heat exchange, the first plate heat exchanger with the cold water come out from battery pack 622 at the first plate heat exchanger 620 620 refrigerant outlet is the liquid refrigerant of medium temperature high pressure, and the refrigerant outlet of the first plate heat exchanger 620 is single by second It is connected to valve 632 with the outlet of first switch valve 630.The liquid refrigerant of two bursts of medium temperature high pressures goes out first switch valve 630 Converge at mouthful, and flows into the entrance of expansion switch valve 603.Expansion switch valve 603 plays expansion valve at this time, as throttling Element plays throttling action, and outlet is the liquid of low-temp low-pressure.Wherein, the aperture for expanding switch valve 603 can be according to reality Demand gives certain aperture, this aperture can be according to the temperature of the pressure-temperature sensor in the exit for being mounted on compressor 604 Degree acquisition data (i.e. compressor exhaust temperature) number adjust.The outlet of expansion switch valve 603 enters with outdoor heat exchanger 605 Mouth is connected, and outdoor heat exchanger 605 absorbs the heat of outdoor air, and the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.This When, the 5th switch valve 610 is opened, and third expansion valve 609 is closed, and the first expansion valve 621 is closed, and refrigerant is without indoor evaporation Device 602 is directly entered in gas-liquid separator 611, and 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.
To sum up, automotive thermal tube provided by the invention manages system, in the case where not changing refrigerant circulation direction, Ji Keshi The refrigeration and heat-production functions of existing air conditioner heat pump system.In addition, due to increasing by the cooling branch of battery, the first plate heat exchanger and electricity It is that pond cooling for reflux branch collectively constitutes and that indoor evaporator is in parallel to be used for the refrigerant diverter branch cooling to battery, with And increases and branch is heated to reflux by battery heating branch, the first plate heat exchanger and battery collectively constitutes and indoor condenser and the The refrigerant diverter branch for heating to battery that branch where one switch valve is in parallel, can be directly arranged to avoid battery In indoor evaporator, it is conducive to arrangement.In addition, automotive thermal tube reason system can be by battery water circulation system, first with system Cryogen makes coolant liquid cool down or heat up, and recycles coolant liquid to be cooled down or heated to battery, so that battery is closing always It works within the scope of suitable temperature, to improve the efficiency for charge-discharge of battery, cruising ability and service life.
As described above, in the present invention, expansion switch valve is the valve simultaneously with expansion valve and switch valve function, It can be regarded as being the integrated of switch valve and expansion valve.It will be provided below a kind of example embodiment party for expanding switch valve Formula.
As shown in figure 8, 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 501 from valve body 500 The coolant of entrance can cross the second spool and flow to the outlet 502 of valve body 500 after passing through the throttling of restriction, and the second valve " disconnect connection " that core is realized refer to the coolant entered from the import 501 of valve body 500 can not cross the second spool and cannot The outlet 502 of valve body 500 is 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 Fig. 8 to Figure 13, valve body 500 includes being formed The valve seat 510 of inner flow passage and the first valve casing 511 and the second valve casing 512 being mounted on the valve seat 510, in the first valve casing 511 The first electromagnetic drive part 521 for driving the first spool 503 is installed, is equipped in the second valve casing 512 for driving second Second electromagnetic drive part 522 of spool 504, the first spool 503 extend to the inner flow passage in valve seat 510 from the first valve casing 511, Second spool 504 extends to the inner flow passage in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., 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 expansion switch valve a kind of typical internal structure, as shown in Figs. 8 to 11, inner flow passage include respectively with The first runner 506 and second flow channel 507 that import 501 is connected to, are formed on first runner 506 and the first spool 503 cooperation First valve port 516, restriction 505 are formed in second flow channel 507 to be formed as the second valve port cooperated with the second spool 504 517, 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 12, 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 15 to Figure 16, import 501 and 502 phases of outlet Mutually vertically it is provided on valve body 500.In this way, as shown in Figure 15 to Figure 17, 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 is illustrated by figs. 11 and 12, 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 14, 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 is illustrated by figs. 11 and 12, 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 11, 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 12 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 11, Figure 14 and Figure 17, 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 11 and Figure 13 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 12 and Figure 18, 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 12 and Figure 18, 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 Fig. 9, Tu15He Shown in Figure 16, 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 cars, including the above-mentioned heat pump air conditioning system provided according to the present invention.Wherein, should Electric car may include pure electric automobile, hybrid vehicle, fuel cell car.
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, first switch valve (630) and the first plate heat exchanger (620), the heat pump air conditioning system include compressor (604), indoor condenser (601), indoor evaporator (602) and outdoor heat exchanger (605), the outlet of the compressor (604) It is connected to the entrance of the indoor condenser (601), the outlet of the interior condenser (601) and the first switch valve (630) entrance connection, the egress selection of the first switch valve (630) via first throttle branch or the first through-flow branch Road is connected to the entrance of the outdoor heat exchanger (605), is led to via second to the egress selection of the outdoor heat exchanger (605) Stream branch is connected to the entrance of the compressor (604) or throttles the entering of branch and the indoor evaporator (602) via second Mouth connection, the outlet of the indoor evaporator (602) are connected to the entrance of the compressor (604), first plate-type heat-exchange Battery cooling branch and the outdoor heat exchanger (605) of the refrigerant inlet of device (620) via selective on or off Outlet is connected to the entrance of the indoor evaporator (602), and is heated via the battery of selective on or off The outlet of branch and the compressor (604), the refrigerant outlet of first plate heat exchanger (620) is via selectivity The battery cooling for reflux branch of on or off is connected to the entrance of the compressor (604), and is heated to reflux via battery The outlet of branch and the first switch valve (630), first plate heat exchanger (620) are connected on the battery simultaneously It guarantees replacement in the battery coolant circuit of hot systems.
2. automotive thermal tube according to claim 1 manages system, which is characterized in that first plate heat exchanger (620) Outlet of the refrigerant inlet via the battery cooling branch and the outdoor heat exchanger (605), the cooling branch of the battery Road is provided with the first expansion valve (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 Two switch valves (626), the second throttling branch is via the second switch valve (626) and the indoor evaporator (602) The refrigerant inlet of entrance connection, first plate heat exchanger (620) cools down branch via the battery of selective on or off Road is connected to the entrance of the second switch valve (626), and is provided with first flow valve on the cooling branch road of the battery (627)。
4. automotive thermal tube according to claim 1 manages system, which is characterized in that in the battery cooling for reflux branch Lu Shangshe It is equipped with third switch valve (633).
5. automotive thermal tube according to claim 1 manages system, which is characterized in that in the battery cooling for reflux branch Lu Shangshe It is equipped with the first check valve (628).
6. automotive thermal tube according to claim 1 manages system, which is characterized in that be provided on battery heating branch road Second flow valve (631).
7. automotive thermal tube according to claim 1 manages system, which is characterized in that be heated to reflux branch Lu Shangshe in the battery It is equipped with second one-way valve (632).
8. automotive thermal tube according to claim 1 manages system, which is characterized in that the coolant liquid of the battery pack heat-exchange system It is additionally provided in circuit and concatenated first water pump (624) of first plate heat exchanger (620), deputy tank (625) and battery It wraps (622).
9. automotive thermal tube according to claim 1 manages system, which is characterized in that the first through-flow branch road is provided with the Four switch valves (608), the first throttle branch road are provided with the second expansion valve (607).
10. automotive thermal tube according to claim 1 manages system, which is characterized in that the heat pump air conditioning system further includes swollen Swollen switch valve (603), the outlet of the entrance of the expansion switch valve (603) and the indoor condenser (601), this is expanded The outlet for closing valve (603) is connected to the entrance of the outdoor heat exchanger (605), and the first throttle branch is expansion switch The throttling runner of valve (603), the first through-flow branch are the through-flow runner of expansion switch valve (603).
11. automotive thermal tube according to claim 1 manages system, which is characterized in that the second through-flow branch road is provided with 5th switch valve (610), the second throttling branch road are provided with third expansion valve (609).
12. 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 third check valve (615) with the entrance of the compressor (604).
13. automotive thermal tube according to claim 1 manages system, which is characterized in that the heat pump air conditioning system is applied to electricity Electrical automobile, the second through-flow branch road are additionally provided with the second plate heat exchanger (612), and second plate heat exchanger (612) is same When be arranged in the electromotor cooling system of the electric car.
14. automotive thermal tube according to claim 13 manages system, which is characterized in that the second through-flow branch road is provided with 5th switch valve (610), the refrigerant inlet (612a) and the outdoor heat exchanger of second plate heat exchanger (612) (605) outlet, the refrigerant outlet (612b) and the 5th switch valve of second plate heat exchanger (612) (610) entrance connection.
15. automotive thermal tube according to claim 13 manages system, which is characterized in that the electromotor cooling system includes and institute State motor, motor radiator (613) and the second water pump (614) that the second plate heat exchanger (612) connect to be formed into a loop.
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 indoor evaporator (602) is connected to the entrance of the gas-liquid separator (611), the room The outlet of external heat exchanger (605) is connected to via the described second through-flow branch with the entrance of the gas-liquid separator (611), and described The refrigerant outlet of one plate heat exchanger (620) via battery cooling for reflux branch and the gas-liquid separator (611) entrance Connection, the outlet of the gas-liquid separator (611) is connected to the entrance of the compressor (604).
17. automotive thermal tube according to claim 1 manages system, which is characterized in that the heat pump air conditioning system further includes PTC Heater (619), the ptc heater (619) are used to heat the wind for flowing through the indoor condenser (601).
18. automotive thermal tube according to claim 17 manages system, which is characterized in that ptc heater (619) setting exists The windward side or leeward side of the interior condenser (601).
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.
CN201610307088.0A 2016-05-10 2016-05-10 Automotive thermal tube manages system and electric car Active CN107351625B (en)

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CN108437737B (en) * 2018-02-06 2021-05-25 江苏金坛长荡湖新能源科技有限公司 Temperature control energy-saving system and control method for electric vehicle
CN108275021B (en) * 2018-02-09 2024-03-08 上海爱斯达克汽车空调系统有限公司 Temperature control device for electric automobile battery and charging pile
CN108674219A (en) * 2018-04-26 2018-10-19 力帆实业(集团)股份有限公司 New energy car battery heat management system
CN112572091B (en) * 2019-09-29 2022-06-14 杭州三花研究院有限公司 Thermal management system
CN113059980B (en) * 2021-03-31 2022-01-07 比亚迪股份有限公司 Integrated thermal management system and vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0858358A (en) * 1994-08-22 1996-03-05 Calsonic Corp Air-conditioner for vehicle
CN104934653A (en) * 2014-03-19 2015-09-23 丰田自动车株式会社 Battery temperature regulating device
CN105539067A (en) * 2016-03-02 2016-05-04 天津三电汽车空调有限公司 Vehicle air-conditioner system with battery heat management function

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0858358A (en) * 1994-08-22 1996-03-05 Calsonic Corp Air-conditioner for vehicle
CN104934653A (en) * 2014-03-19 2015-09-23 丰田自动车株式会社 Battery temperature regulating device
CN105539067A (en) * 2016-03-02 2016-05-04 天津三电汽车空调有限公司 Vehicle air-conditioner system with battery heat management function

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