CN107351634B - Automotive thermal tube manages system and electric car - Google Patents
Automotive thermal tube manages system and electric car Download PDFInfo
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- CN107351634B CN107351634B CN201610309721.XA CN201610309721A CN107351634B CN 107351634 B CN107351634 B CN 107351634B CN 201610309721 A CN201610309721 A CN 201610309721A CN 107351634 B CN107351634 B CN 107351634B
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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
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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
- B60H1/00357—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
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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
- B60H1/02—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, engine-cooling system and the first plate heat exchanger, the heat pump air conditioning system and the engine-cooling system are exchanged heat by first plate heat exchanger and the battery pack heat-exchange system respectively, the refrigerant inlet of first plate heat exchanger is connected to via the battery heating branch of selective on or off with the entrance of the first switch valve, the refrigerant outlet of first plate heat exchanger is heated to reflux the outlet of branch Yu the first switch valve via battery.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
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, including heat pump air conditioning system, battery pack heat-exchange system, first switch valve, engine-cooling system and the first plate-type heat-exchange
Device, the heat pump air conditioning system and the engine-cooling system pass through first plate heat exchanger and the battery pack respectively
Heat-exchange system heat exchange, the heat pump air conditioning system include compressor, indoor condenser, indoor evaporator and outdoor heat exchanger, institute
The outlet for stating compressor is connected to the entrance of the indoor condenser, the outlet of the interior condenser and the first switch valve
Entrance connection, the egress selection of the first switch valve via first throttle branch or the first through-flow branch and the room
The entrance of external heat exchanger 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 institute
The entrance connection of compressor is stated,
The refrigerant inlet of first plate heat exchanger is via the cooling branch of battery of selective on or off and institute
It states the outlet of outdoor heat exchanger or is connected to the entrance of the indoor evaporator, and via selective on or off
Battery heating branch is connected to the entrance of the first switch valve, and the refrigerant outlet of first plate heat exchanger is via selection
The battery cooling for reflux branch of property on or off is connected to the entrance of the compressor, and is heated to reflux branch via battery
With the outlet of the first switch valve, first plate heat exchanger is connected on the electricity of the battery pack heat-exchange system simultaneously
In the coolant circuit of pond.
Optionally, the refrigerant inlet of first plate heat exchanger is cold via the battery of selective on or off
But the outlet of branch and the outdoor heat exchanger, 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 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, the 4th switch 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, 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 entrance of the engine coolant entrance of first plate heat exchanger and the indoor heater cores, the interior
The coolant liquid that the outlet of heater cores and the engine coolant of first plate heat exchanger export with the engine enters
Mouth connection, the cooling liquid outlet of the engine are connected to the entrance of second water pump.
Optionally, the described first through-flow branch road is provided with the 5th 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 6th 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 6th 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 6th 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 third 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.
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 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 mainly refers to hybrid vehicle.
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 HVAC assembly 600 may include indoor condenser 601 and indoor evaporator 602.
Air door mechanism can be used for leading to the air duct of indoor evaporator 602 and indoor condenser 601.As shown in Figure 1, compressor
604 outlet with interior condenser 601 entrance be connected to, the egress selection of indoor condenser 601 via first throttle branch
Road or the first through-flow branch are connected to the entrance of outdoor heat exchanger 605, the egress selection of outdoor heat exchanger 605 via second
Throttling branch is connected to the entrance of indoor evaporator 602 or is connected to via the second through-flow branch with the entrance of compressor 604, indoor
The outlet of 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 be have the function of simultaneously expansion valve (also referred to as electric expansion valve function) and
The valve of switch valve function (also referred to as solenoid valve function) can be regarded as being the integrated of switch valve and expansion valve.Swollen
The inside of swollen switch valve be formed with through-flow runner and throttling runner, when expansion switch valve as switch valve in use, its inside
Through-flow runner conducting, 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 5th switch valve
608 and second expansion valve 607, wherein the first through-flow branch road is provided with the 5th 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 the 5th 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 circulation pattern, the
The conducting of five switch valves 608, the second expansion valve 607 are closed, and the outlet of indoor condenser 601 is changed via the first through-flow branch with outdoor
The entrance of hot device 605 is connected to.When system is under heat pump low-temperature heating circulation pattern, the conducting of the second expansion valve 607, the 5th is opened
It closes valve 608 to close, 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 6th 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 6th 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 heat pump high-temperature refrigeration circulation pattern, third expansion valve 609 is connected, the
Six switch valves 610 are closed, and the outlet of outdoor heat exchanger 605 is connected to via the second throttling branch with the entrance of indoor evaporator 602.
When system is under heat pump low-temperature heating circulation pattern, the 6th switch valve 610 conducting, third expansion valve 609 is closed, outdoor
The outlet of heat exchanger 605 is connected to via 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
It is flowed back into compressor 604 again, thus prevent liquid refrigerant from entering compressor 604 and damaging compressor 604, so as to
Extend the service life of compressor 604, and improves the efficiency of entire heat pump air conditioning system.The outlet of indoor evaporator 602 passes through
Third check valve 615 is connected to the entrance of gas-liquid separator 611.Here, setting third check valve 615 is in order to prevent in heat pump
Refrigerant is back to indoor evaporator 602 under low-temperature heating circulation pattern (described in detail below), influences heating effect.
Under heat pump low-temperature heating circulation pattern, in order to improve heating ability, it is preferable that as shown in figure 4, in entire heat pump
The second plate heat exchanger 612 is provided in air-conditioning system, which is also disposed in electric car simultaneously
In electromotor cooling system.In this way, the waste heat that can use electromotor cooling system gives air-conditioning system refrigerant heat, to can be improved
The suction temperature and inspiratory capacity of compressor 604.The upper of the 6th switch valve 610 can be arbitrarily arranged in second plate heat exchanger 612
Trip or downstream.In the embodiment illustrated in fig. 4, the upstream of the 6th switch valve 610 is arranged in the second plate heat exchanger 612, that is,
The refrigerant inlet 612a of second plate heat exchanger 612 and the outlet of outdoor heat exchanger 605, the second plate heat exchanger 612
Refrigerant outlet 612b be connected to the entrance of the 6th switch valve 610.(not shown) in another embodiment, second is board-like
The downstream of the 6th switch valve 610 is arranged in heat exchanger 612, that is, the refrigerant inlet 612a and the 6th of the second plate heat exchanger 612
The outlet of switch valve 610, the refrigerant outlet 612b of the second plate heat exchanger 612 and the entrance of gas-liquid separator 611 connect
It is logical.
At the same time, the second plate heat exchanger 612 is arranged in electromotor cooling system simultaneously.As shown in figure 4, 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 the 6th switch valve 610 and indoor evaporator 602, the outlet of indoor evaporator 602 is still the gas of low-temp low-pressure, at this time the
Six switch valves 610 and indoor evaporator 602 are only flowed through as runner.
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 fig. 6,
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 620a of the first plate heat exchanger 620 cools down branch via the battery of selective on or off
Road is connected to the entrance of the outlet of outdoor heat exchanger 605 or indoor evaporator 602, and the refrigerant of the first plate heat exchanger 620 goes out
Mouth 620b is connected to via battery cooling for reflux branch with the entrance of compressor 604, and the first plate heat exchanger 620 is connected on electricity simultaneously
Pond guarantee replacement hot systems battery coolant circuit in.
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 when heat pump high-temperature refrigeration is powered under pond cooling cycle mode
Stock refrigerant flow direction indoor evaporator 602, and evaporated in evaporator 602 indoors, indoor environment heat is absorbed, Indoor Temperature is reduced
Degree;Another strand of the first plate heat exchanger of refrigerant flow direction 620, and pass through the first plate heat exchanger 620 and battery pack heat-exchange system
Battery coolant circuit in coolant liquid exchange heat, absorb the heat of coolant liquid, and then may be implemented to battery pack 622
It is cooling.
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. 6, 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 and outdoor heat exchanger 605.Specifically, the can be set on the cooling branch road of battery
One expansion valve 621.In this way, can be according to actual needs by opening or closing the first expansion valve 621 whether to control refrigerant
The refrigerant inlet 620a of the first plate heat exchanger 620 can be flowed into.That is, the cooling branch of control battery is to be on shape
State is in off state.
In this embodiment, in the case where heat pump high-temperature refrigeration is powered on pond cooling cycle mode, go out from outdoor heat exchanger 605
The refrigerant for the medium temperature high pressure come directly is divided into two strands: one flows to third expansion valve 609;Another plume is to the first expansion valve
621.In other words, 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 5th switch valve 626, the second section
Stream branch is connected to via the 5th 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 5th switch valve 626 with the entrance of indoor evaporator 602.First plate-type heat-exchange
The refrigerant inlet 620a of device 620 cools down the entrance of branch and the 5th switch valve 626 via the battery of selective on or off
Connection, and flow valve 627 is provided on the cooling branch road of battery.
In this way, can be by control flow valve 627 to control whether refrigerant can flow into the first plate heat exchanger 620
Refrigerant inlet 620a, that is, the cooling branch of control battery be it is in the conductive state, be in off state.In addition, control
Flow valve 627 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 heat pump high-temperature refrigeration is powered on pond cooling cycle mode, go out from outdoor heat exchanger 605
The refrigerant for the medium temperature high pressure come is divided into two strands after the throttling of third expansion valve 609: one flows to the 5th switch valve 626,
Another plume is to flow valve 627, wherein the function of the distribution of the flow proportional of two strands of refrigerants may be implemented in 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 heat pump low temperature heating circulation pattern, 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.That is, the first check valve 628 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.
Specifically, the first plate heat exchanger 620 is connected in the coolant circuit of battery pack heat-exchange system, and cooling
It is additionally provided in liquid circuit and concatenated first water pump 624 of the first plate heat exchanger 620, 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 6th switch valve
Except 610 connections, the refrigerant outlet 620b of the first plate heat exchanger 620 is also via battery cooling for reflux branch and gas-liquid separation
The entrance of device 611 is connected to.In other words, gas-liquid can also be first passed around from the liquid refrigerant that the first plate heat exchanger 620 comes out
Separator 611 carries out gas-liquid separation, and the gas isolated is flowed back into again in compressor 604, to prevent liquid refrigerant from entering
Compressor 604 is damaged to compressor 604.
It is returned in the structural schematic diagram of automotive thermal tube reason system shown in fig. 6 below.As shown in fig. 6, within the system, heat
Pump air conditioner system can also include first switch valve 630, wherein the outlet of indoor condenser 601 enters with first switch valve 630
Mouthful connection, the egress selection of first switch valve 630 via first throttle branch or the first through-flow branch and outdoor heat exchanger
605 entrance connection.Specifically as shown in fig. 6, the outlet of first switch valve 630 can be changed via expansion switch valve 603 with outdoor
The entrance of hot device 605 is connected to.In addition, the refrigerant inlet 620a of the first plate heat exchanger 620 is via selective on or off
Battery heating branch be connected to the entrance of first switch valve 630, the refrigerant outlet 620b of the first plate heat exchanger 620 via
Battery is heated to reflux the outlet of branch Yu first switch valve 630, and the first plate heat exchanger 620 is connected on battery simultaneously and guarantees replacement
In the battery coolant circuit of hot systems.
That is, as another inventive concept of the invention, by increasing between indoor condenser 601 and expansion switch valve 603
Add first switch valve 630, and increases the refrigerant inlet 620a and refrigerant being respectively communicated with to the first plate heat exchanger 620 and go out
The battery heating branch and battery of mouth are heated to reflux branch, and battery heating branch, the first plate heat exchanger 620 and battery heating
Reflux branch collectively constitutes the refrigerant diverter branch for heating to battery being in parallel with first switch valve 630.This
Sample, when heat pump low temperature heating is powered under pond heat cycles mode, the refrigeration of the medium temperature high pressure come out from indoor condenser 601
Agent is segmented into two strands: the wherein entrance of one refrigerant flow direction first switch valve 630, another strand of the first plate of refrigerant flow direction
Formula heat exchanger 620, and pass through the first plate heat exchanger 620 and the coolant liquid in the battery coolant circuit of battery pack heat-exchange system
It exchanges heat, coolant liquid absorbs the heat of refrigerant release, and then the heat temperature raising to battery pack may be implemented.
To heat branch convenient for whether control refrigerant flows through battery, the 4th switch valve is provided on battery heating branch road
631.In this way, when needing to heat battery, for example, the 4th switch valve can be opened under battery heat cycles mode
631, 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 pair
When battery is heated, for example, can close the 4th switch valve 631 under battery cooling cycle mode, prevent high temperature and pressure
Refrigerant enters the first plate heat exchanger 620 and carries out heat temperature raising to battery, and the temperature of battery is caused to further increase.
To prevent under battery heat cycles mode, come out from the refrigerant outlet 620b of the first plate heat exchanger 620
The refrigerant of the liquid of cryogenic high pressure flows directly into compressor 604, causes the damage to compressor, in battery cooling for reflux branch
On be provided with third switch valve 633.In this way, closing third switch valve can be used when system is under battery heat cycles mode
633, so that the refrigerant of the cryogenic high pressure from the refrigerant outlet 620b of the first plate heat exchanger 620 out is all via battery
It is heated to reflux branch flow direction expansion switch valve 603.
As above-mentioned, in order to prevent under heat pump low-temperature heating circulation pattern, the refrigerant of low-temp low-pressure is back to the first plate
In formula heat exchanger 620, the first check valve 628 is provided on battery cooling for reflux branch road.Wherein, third switch valve 633 via
First check valve 628 is connected to the entrance of compressor 604.
To prevent under battery cooling cycle mode, the gas refrigerant of the high temperature and pressure come out from indoor condenser 601
After first switch valve 630, the refrigerant outlet that branch flows to the first plate heat exchanger 620 is heated to reflux along battery
620b is heated to reflux on branch road in battery and is provided with second one-way valve 632.That is, second one-way valve 632 can uniaxially allow to make
Cryogen flows to expansion switch valve 603 from the refrigerant outlet 620b of the first plate heat exchanger 620, and cannot flow in opposite direction
It is dynamic.
In the structural schematic diagram for returning automotive thermal tube reason system shown in fig. 6 below.As shown in fig. 6, the automotive thermal tube
Reason system in addition to include heat pump air conditioning system described above, battery pack heat-exchange system and the first plate heat exchanger 620 other than,
It can also include engine-cooling system, wherein heat pump air conditioning system and the engine-cooling system pass through the first plate respectively
Formula heat exchanger 620 and battery pack heat-exchange system exchange heat.In the present invention, the first plate heat exchanger 620 is three ply board formula heat exchanger.
So-called " three ply board formula heat exchanger " refers to the internal plate heat exchanger for being formed with three heat exchanger channels, wherein a heat exchanger channels
Interior flowing be heat pump air conditioning system refrigerant, what is flowed in heat exchanger channels is battery coolant liquid, a heat exchanger channels
Interior flowing is engine coolant.
Specifically, as shown in Figure 6 and Figure 7, engine-cooling system may include the second water pump 641, engine 642, room
Interior heater cores 643 (being arranged in HVAC 600) and triple valve 644, wherein the outlet of the second water pump 641 and triple valve 644
Entrance 644a connection, two outlets (that is, second outlet 644c and first outlet 644b) of triple valve 644 respectively with interior warm up
The engine coolant entrance 620c of the entrance of wind core 643 and the first plate heat exchanger 620 connection, indoor heater cores 643
Outlet and the first plate heat exchanger 620 engine coolant export 620d be connected to the coolant inlet of engine 642,
The cooling liquid outlet of engine 642 is connected to the entrance of the second water pump 641.
When opening the second water pump 641, when the first outlet 644b of entrance 644a and triple valve 644 of triple valve 644 is connected,
Engine coolant can flow into the first plate heat exchanger via the engine coolant entrance 620c of the first plate heat exchanger 620
620, and the first plate heat exchanger 620 is flowed out via the engine coolant of the first plate heat exchanger 620 outlet 620d.In this way,
The waste heat that can use engine 642 is that battery pack is heated.Further, it is also possible to pass through the entrance of conducting triple valve 644
The second outlet 644c of 644a and triple valve 644, so that engine coolant flows into indoor heater cores 643, to realize benefit
It is interior heating with engine exhaust heat.
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 under different working modes
Cyclic process and principle.It should be understood that the system under other embodiments (for example, embodiment shown in Fig. 7) is followed
Ring process and principle with Fig. 6 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 high temperature
Cooling cycle system.As shown in fig. 6, firstly, the gas of high temperature and pressure is discharged through overcompression for compressor 604, with indoor condenser
601 are connected.At this point, control wind without indoor condenser 601 by air door mechanism, due to calm process, cold indoors
It not will do it heat exchange in condenser 601, which only uses as runner, and the indoor outlet of condenser 601 at this time is still
For 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 action is only flowed through as runner, and expanding the outlet of switch valve 603 at this time still is the gas of high temperature and pressure.Expansion switch valve 603 goes out
Mouth is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 and outdoor air exchange heat, and heat is dispersed into air, outdoor heat exchange
The outlet of device 605 is the liquid of medium temperature high pressure.At this point, the 6th 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.Also, in this mode, the first water pump 624
It closes, the second water pump 641 is closed, and triple valve 644 powers off, that is, is closed.
Mode two: battery cooling cycle mode.System in this mode when, battery pack heat-exchange system formed an electricity
Pond 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 are connected.At this point, control wind without indoor condenser 601 by air door mechanism, due to calm process, cold indoors
It not will do it heat exchange in condenser 601, which only uses as runner, and the indoor outlet of condenser 601 at this time is still
For 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 action is only flowed through as runner, and expanding the outlet of switch valve 603 at this time still is the gas of high temperature and pressure.Expansion switch valve 603 goes out
Mouth is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 and outdoor air exchange heat, and heat is dispersed into air, outdoor heat exchange
The outlet of device 605 is the liquid of medium temperature high pressure.At this point, the 6th 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 620a 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 620b of the first plate heat exchanger 620 is the gas of low-temp low-pressure.The refrigeration of first plate heat exchanger 620
Agent outlet 620b is connected with the entrance of the first check valve 628, the outlet of the first check valve 628 and the entrance of gas-liquid separator 611
It is connected, 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 water pump 624 is opened, and the second water pump 641 is closed,
Triple valve 644 powers off.
Mode three: heat pump high-temperature refrigeration is powered on pond cooling cycle mode.System in this mode when, whole system shape
At a high-temperature refrigeration while battery cooling recirculation system.As shown in fig. 6, firstly, compressor 604 is high through overcompression discharge high temperature
The gas of pressure is connected with indoor condenser 601.At this point, wind is controlled without indoor condenser 601 by air door mechanism, due to
Therefore calm process not will do it heat exchange in condenser 601 indoors, which only uses as runner,
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,
Expansion switch valve 603 plays switch valve action at this time, only flows through as runner, and it is still high for high temperature to expand the outlet of switch valve 603 at this time
The gas of pressure.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 and outdoor air exchange heat,
Heat is dispersed into air, and the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure.At this point, the 6th switch valve 610 is closed, the
One 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,
The liquid of the medium temperature high pressure come out from outdoor heat exchanger 605 is divided into two strands: one flows to the entrance of third expansion valve 609, third
Expansion valve 609 plays throttling action as restricting element, and outlet is low temperature and low pressure liquid.609 aperture of third expansion valve can be with
Certain aperture is given according to actual needs, this aperture can be according to the outlet and gas-liquid separation for being mounted on indoor evaporator 602
The pressure and temperature acquisition data of pressure-temperature sensor between the entrance of device 611 calculate the outlet of indoor evaporator 602 refrigeration
The agent degree of superheat is adjusted.The outlet of third expansion valve 609 is connected with the entrance of indoor evaporator 602, and low temperature and low pressure liquid is indoors
It is evaporated in evaporator 602, so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure, the outlet of indoor evaporator 602
It is connected with the entrance of third check valve 615.For another plume to the entrance of the first expansion valve 621, the aperture of the first expansion valve 621 can
To give certain aperture according to actual needs, this aperture can be according to the refrigerant outlet 620b of the first plate heat exchanger 620
The pressure and temperature acquisition data of pressure-temperature sensor between the entrance of gas-liquid separator 611 calculate refrigerant superheat
Degree is to adjust.First expansion valve 621 plays throttling action as restricting element, and outlet is low temperature and low pressure liquid.First expansion
The outlet of valve 621 is connected with the refrigerant inlet 620a of the first plate heat exchanger 620, and low temperature and low pressure liquid is in the first plate heat exchanger
Heat exchange is carried out with the hot water come out from battery pack 622 in 620, so that the refrigerant outlet 620b of the first plate heat exchanger 620
For the gas of low-temp low-pressure, the refrigerant outlet 620b of the first plate heat exchanger 620 is connected with the first check valve 628.Third list
The outlet of outlet and the first check valve 628 to valve 615 is connected with gas-liquid separator 611 respectively, from going out for the first check valve 628
The refrigerant that the refrigerant that mouth comes out comes out with the outlet from the first check valve 628 converges, and the liquid not being evaporated is passed through gas
Liquid/gas separator 611 separates, and the gas of last low-temp low-pressure returns in compressor 604, and a circulation is consequently formed.HVAC is total at this time
Indoor evaporator 602 is flowed only through at the flow direction of 600 apoplexy, the calm process of indoor condenser 601 is only used as refrigerant flow path stream
It crosses.Also, in this mode, the first water pump 624 is opened, and the second water pump 641 is closed, and triple valve 644 powers off.
Mode four: heat pump low-temperature heating circulation pattern.System in this mode when, whole system formed a low temperature
Heating circulation system.As shown in fig. 6, firstly, the gas of high temperature and pressure is discharged through overcompression for compressor 604, with indoor condenser
601 are connected, at this point, indoor condenser 601 has a wind process, the gas of high temperature and pressure is condensed in condenser 601 indoors, make
Obtain the liquid that the indoor outlet of condenser 601 is 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, the aperture for expanding switch valve 603 can give certain aperture according to actual needs, this aperture can be pressed according to being mounted on
The number of the temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor in the exit of contracting machine 604 is adjusted.
The outlet of expansion switch valve 603 is connected with the entrance of outdoor heat exchanger 605, and outdoor heat exchanger 605 absorbs the heat of outdoor air, room
The outlet of external heat exchanger 605 is the gas of low-temp low-pressure.At this point, the 6th switch valve 610 is opened, third expansion valve 609 is closed, first
Expansion valve 621 is closed, and refrigerant is directly entered in gas-liquid separator 611 without indoor evaporator 602, the liquid not being evaporated
It is separated by gas-liquid separator 611, the gas of last low-temp low-pressure returns in compressor 604, and a circulation is consequently formed.And
And in this mode, the first water pump 624 is closed, and the second water pump 641 is closed, and triple valve 644 powers off.
Mode five: battery-heated model.Battery pack heat-exchange system forms a battery pack cooling recirculation system.Such as Fig. 6 institute
Show, firstly, gas of the compressor 604 through overcompression discharge high temperature and pressure, is connected with indoor condenser 601, at this point, indoor cold
Therefore the calm process of condenser 601 not will do it heat exchange in condenser 601 indoors, the interior condenser 601 is only as stream
Road uses, 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 and the 4th switch valve
631 are connected, at this point, the 4th switch valve 631 is opened, first switch valve 630 is closed, and the outlet of the 4th switch valve 631 is that high temperature is high
The gas of pressure, the outlet of the 4th switch 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
620b is the liquid of medium temperature high pressure.The refrigerant outlet 620b of first plate heat exchanger 620 is connected to by second one-way valve 632
The entrance of switch valve 603 is expanded, switch valve 603 is expanded at this time and plays expansion valve, play throttling action as restricting element,
Its liquid exported as low-temp low-pressure.Wherein, the aperture for expanding switch valve 603 can give certain open according to actual needs
Degree, this aperture (can be pressed according to the temperature acquisition data of the pressure-temperature sensor in the exit for being mounted on compressor 604
Contracting machine delivery temperature) number adjust.The outlet of expansion switch valve 603 is connected with the entrance of outdoor heat exchanger 605, outdoor heat exchange
Device 605 absorbs the heat of outdoor air, and the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.At this point, the 6th switch valve 610
It opens, third expansion valve 609 is closed, and the first expansion valve 621 is closed, and refrigerant is directly entered gas without indoor evaporator 602
In liquid/gas separator 611, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to compression
In machine 604, a circulation is consequently formed.Also, in this mode, the first water pump 624 is closed, and the second water pump 641 is closed, threeway
Valve 644 powers off.
Mode six: heat pump low-temperature heating is powered on pond heat cycles mode.System in this mode when, whole system shape
At a low temperature heating while battery heating circulation system.As shown in fig. 6, firstly, compressor 604 is high through overcompression discharge high temperature
The gas of pressure is connected with indoor condenser 601, at this point, indoor condenser 601 has wind process, the gas of high temperature and pressure is indoors
It is condensed in condenser 601, so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure.The indoor outlet point of condenser 601
It is not connected with expansion switch valve 603 and the 4th switch valve 631, at this point, the liquid of medium temperature high pressure is divided into two strands: wherein one is flowed to
First switch valve 630, another stock flows to the first plate heat exchanger 620 by the 4th switch valve 631, at this point, the liquid of medium temperature high pressure
Body exchanges heat in the first plate heat exchanger 620 with the cold water come out from battery pack 622, so that the first plate heat exchanger 620
Refrigerant outlet 620b be medium temperature high pressure liquid.The refrigerant outlet 620b of first plate heat exchanger 620 is single by second
The outlet of first switch valve 630 is connected to valve 632, and after converging with the refrigerant for flowing through first switch valve 630, flow direction expansion
The entrance of switch valve 603.Expansion switch valve 603 plays expansion valve at this time, plays throttling action as restricting element, goes out
Mouth is the liquid of low-temp low-pressure.Wherein, the aperture for expanding switch valve 603 can give certain aperture according to actual needs, this
Aperture can be according to temperature acquisition data (the i.e. compressor row of the pressure-temperature sensor in the exit for being mounted on compressor 604
Temperature degree) number adjust.The outlet of expansion switch valve 603 is connected with the entrance of outdoor heat exchanger 605, outdoor heat exchanger 605
The heat of outdoor air is absorbed, the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.At this point, the 6th switch valve 610 is opened,
Third expansion valve 609 is closed, and the first expansion valve 621 is closed, and refrigerant is directly entered gas-liquid separation without indoor evaporator 602
In device 611, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to compressor 604
In, a circulation is consequently formed.Also, in this mode, the first water pump 624 is closed, and the second water pump 641 is closed, triple valve 644
Power-off.
Mode seven: engine low temperature heats circulation pattern.As shown in fig. 6, come out from the cooling liquid outlet of engine 642
High temperature coolant passes through the second water pump 641, the entrance 644a- second outlet 644c of triple valve 644, using indoor heater cores
643, which carry out heat exchange cooling with air, is the coolant liquid of low temperature, then flows back into the coolant inlet of engine 642, thus complete
It is recycled at one.In this mode, compressor 604, expansion switch valve 603, third expansion valve 609, the first expansion valve 621 are all located
In off-position, the first water pump 624 is closed, the operation of the second water pump 641, the entrance 644a- second outlet 644c of triple valve 644
Logical, entrance 644a- first outlet 644b is obstructed.
Mode eight: engine mode battery heat cycles mode.As shown in fig. 6, going out from the cooling liquid outlet of engine 642
The high temperature coolant come flows to first and board-like changes by the second water pump 641, the entrance 644a- first outlet 644b of triple valve 644
Hot device 620 carries out heat exchange cooling with the cold water that battery pack 622 comes out and is the coolant liquid of low temperature, then flow back into engine 642
Coolant inlet in, thus complete engine mode battery heat one circulation.In this mode, compressor 604, expand
Valve 603, third expansion valve 606, the first expansion valve 621 are closed all in off-position, the operation of the first water pump 624, the second water pump 641
The entrance 644a- first outlet 644b of operation, triple valve 644 is logical, and entrance 644a- second outlet 644c is obstructed.
Mode nine: engine mode low-temperature heating is powered on pond heat cycles mode.As shown in fig. 6, from the cold of engine 642
But the high temperature coolant that liquid exports out punishes stream by the second water pump 641, in triple valve 644, all the way by triple valve 644
Entrance 644a- first outlet 644b carries out heat exchange cooling to the first plate heat exchanger 620, with the cold water that battery pack 622 comes out
For the coolant liquid of low temperature, another way by the entrance 644a- second outlet 644c of triple valve 644 arrive indoor heater cores 643 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 643 flow out is flow back into together again in the coolant inlet of engine 642, thus completes a hair
Motivation mode low temperature heating power-up pond heat cycles.In this mode, it is swollen to expand switch valve 603, third for compressor 604, first
Swollen valve 609, the first expansion valve 621 are all in off-position, the operation of the first water pump 624, the operation of the second water pump 641, triple valve 644
Entrance 644a- first outlet 644b it is logical, entrance 644a- second outlet 644c is logical.
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, 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, with reality
The on-off control and/or throttling control function of existing import 501 and outlet 502, structure is simple, is readily produced and installs, and when this
When the expansion switch valve that invention provides is applied to heat pump system, it is possible to reduce the refrigerant charge of entire heat pump system reduces
Cost 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, refrigeration
Agent 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 institute
Show that there is gap between the taper header structure and restriction 505 of the end of the second spool 504, flow to out again after refrigerant throttling
Mouth 502.It, can be by controlling the second electromagnetic drive part 522, so that second when if desired increasing the throttle opening of expansion switch valve
Spool 504 moves up, so that taper header structure is far from restriction 505, to realize becoming larger for 505 aperture of restriction;Phase
Instead, it when needing to reduce the aperture of restriction 505 of expansion switch valve, can drive mobile under 504 phase of the second spool.
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, Figure 15 and figure
Shown in 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 port
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 be with
Respectively along first runner 506 and the flow direction of second flow channel 507 outlet 502, to have the function of solenoid valve and electric expansion valve simultaneously
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 (20)
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), engine-cooling system and the first plate heat exchanger (620), the heat pump air conditioning system
It is exchanged heat respectively by first plate heat exchanger (620) and the battery pack heat-exchange system with the engine-cooling system,
The heat pump air conditioning system includes compressor (604), indoor condenser (601), indoor evaporator (602) and outdoor heat exchanger
(605), the outlet of the compressor (604) is connected to the entrance of the indoor condenser (601), the interior condenser
(601) outlet is connected to the entrance of the first switch valve (630), the egress selection of the first switch valve (630)
It is connected to via first throttle branch or the first through-flow branch with the entrance of the outdoor heat exchanger (605), the outdoor heat exchanger
(605) it is connected to via the second through-flow branch with the entrance of the compressor (604) to egress selection or via the second throttling
Branch is connected to the entrance of the indoor evaporator (602), the outlet of the indoor evaporator (602) and the compressor
(604) entrance connection, the refrigerant inlet (620a) of first plate heat exchanger (620) is via selective on or off
The cooling branch of battery and the outdoor heat exchanger (605) outlet or connect with the entrance of the indoor evaporator (602)
It is logical, and be connected to via the battery of selective on or off heating branch with the entrance of the first switch valve (630), it is described
The refrigerant outlet (620b) of first plate heat exchanger (620) via selective on or off battery cooling for reflux branch with
The entrance of the compressor (604) is connected to, and the outlet of branch Yu the first switch valve (630) is heated to reflux via battery
Connection.
2. automotive thermal tube according to claim 1 manages system, which is characterized in that first plate heat exchanger (620)
The battery cooling branch and the outdoor heat exchanger (605) of the refrigerant inlet (620a) via selective on or off
Outlet, the cooling branch road of the battery are 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)
Entrance connection, the refrigerant inlet (620a) of first plate heat exchanger (620) via selective on or off battery
Cooling branch is connected to the entrance of the second switch valve (626), and is provided with 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
4th switch 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 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 (624) of formula heat exchanger (620), deputy tank (625) and battery pack (622).
9. automotive thermal tube according to claim 1 manages system, which is characterized in that the engine-cooling system includes second
Water pump (641), engine (642), indoor heater cores (643) and the first triple valve (644), second water pump (641)
Outlet is connected to the entrance (644a) of first triple valve (644), two of first triple valve (644) export (644b,
644c) respectively with the engine coolant entrance (620c) of first plate heat exchanger (620) and the indoor heater cores
(643) entrance connection, the outlet of the interior heater cores (643) and the engine of first plate heat exchanger (620)
Cooling liquid outlet (620d) is connected to the coolant inlet of the engine (642), and the coolant liquid of the engine (642) goes out
Mouth is connected to the entrance of second water pump (641).
10. automotive thermal tube according to claim 1 manages system, which is characterized in that the first through-flow branch road is provided with
5th switch valve (608), the first throttle branch road are provided with the second expansion valve (607).
11. 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).
12. automotive thermal tube according to claim 1 manages system, which is characterized in that the second through-flow branch road is provided with
6th switch valve (610), the second throttling branch road are provided with third expansion valve (609).
13. 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).
14. 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.
15. automotive thermal tube according to claim 14 manages system, which is characterized in that the second through-flow branch road is provided with
6th 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 6th switch valve of second plate heat exchanger (612)
(610) entrance connection.
16. automotive thermal tube according to claim 14 manages system, which is characterized in that the electromotor cooling system includes and institute
State motor, motor radiator (613) and third water pump (614) that the second plate heat exchanger (612) connect to be formed into a loop.
17. 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 (620b) of one plate heat exchanger (620) is 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).
18. 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).
19. automotive thermal tube according to claim 18 manages system, which is characterized in that ptc heater (619) setting exists
The windward side or leeward side of the interior condenser (601).
20. a kind of electric car, which is characterized in that managed including automotive thermal tube described according to claim 1 any one of -19
System.
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CN107914544A (en) * | 2017-12-15 | 2018-04-17 | 惠州市惠丰汽车空调有限公司 | The air-conditioning battery heat-exchange system and its heat-exchange method of a kind of electric automobile |
KR20200127068A (en) * | 2019-04-30 | 2020-11-10 | 현대자동차주식회사 | Thermal management system for vehicle |
US11472255B2 (en) | 2020-09-21 | 2022-10-18 | Honda Motor Co., Ltd. | Chiller/warmer combination for an electric vehicle |
PL3984791T3 (en) * | 2020-10-15 | 2023-10-09 | Ymer Technology AB | Thermal management unit, thermal management system, and an electrical vehicle including the thermal management system |
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