CN107351625A - Automotive thermal tube manages system and electric automobile - Google Patents

Automotive thermal tube manages system and electric automobile Download PDF

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Publication number
CN107351625A
CN107351625A CN201610307088.0A CN201610307088A CN107351625A CN 107351625 A CN107351625 A CN 107351625A CN 201610307088 A CN201610307088 A CN 201610307088A CN 107351625 A CN107351625 A CN 107351625A
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China
Prior art keywords
branch road
heat exchanger
valve
outlet
battery
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Granted
Application number
CN201610307088.0A
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Chinese (zh)
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CN107351625B (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 automobile, the system includes heat pump type air conditioning system, battery bag heat-exchange system, first switch valve and the first plate type heat exchanger, the refrigerant inlet of first plate type heat exchanger connects via the battery cooling branch road of selective on or off with the outlet of outdoor heat exchanger or with the entrance of indoor evaporator, and via the battery heating branch road of selective on or off and the outlet of compressor, the refrigerant outlet of first plate type heat exchanger connects via the battery cooling for reflux branch road of selective on or off with the entrance of compressor, and the outlet of branch road and first switch valve is heated to reflux via battery.It can be exchanged heat by the refrigerant and coolant of battery water circulation system, to be cooled down or be heated to battery, battery is worked all the time within the scope of suitable temperature, improve efficiency for charge-discharge, endurance and the service life of battery.

Description

Automotive thermal tube manages system and electric automobile
Technical field
The present invention relates to automotive air-conditioning system, in particular it relates to a kind of automotive thermal tube reason system and electric automobile.
Background technology
Ensure that the battery efficiency of electric automobile is high, it is necessary to there is suitable operating temperature, too high or height can all make a big impact to its performance and endurance.China Patent Publication No. is that CN205039220U utility model discloses a kind of automobile power cell cooling system.Although the power battery cooling system can be cooled down in refrigeration by evaporator to electrokinetic cell, but electrokinetic cell is close together with evaporator and exchanged heat, it is although feasible in principle, but it is difficult on car, because evaporator is general all in air conditioning box body, cabinet space is limited, and the electrokinetic cell of pure electric automobile is very big, is typically disposed in underbody.
The content of the invention
In order to solve problems of the prior art,According to an aspect of the present invention,A kind of automotive thermal tube reason system is provided,Wherein,The automotive thermal tube reason system includes heat pump type air conditioning system,Battery bag heat-exchange system,First switch valve and the first plate type heat exchanger,The heat pump type air conditioning system includes compressor,Indoor condenser,Indoor evaporator,Outdoor heat exchanger,The outlet of the compressor connects with the entrance of the indoor condenser,The outlet of the indoor condenser connects with the entrance of the first switch valve,Connected via first throttle branch road or the first through-flow branch road with the entrance of the outdoor heat exchanger egress selection of the first switch valve,Connect with the entrance of the compressor via the second through-flow branch road the egress selection of the outdoor heat exchanger or connected via the second throttling branch road with the entrance of the indoor evaporator,The outlet of the indoor evaporator connects with the entrance of the compressor,The refrigerant inlet of first plate type heat exchanger connects via the battery cooling branch road of selective on or off with the outlet of the outdoor heat exchanger or with the entrance of the indoor evaporator,And connected via the battery heating branch road of selective on or off with the entrance of the compressor,The refrigerant outlet of first plate type heat exchanger connects via the battery cooling for reflux branch road of selective on or off with the entrance of the compressor,And the outlet of branch road and the first switch valve is heated to reflux via battery,First plate type heat exchanger is connected in the battery coolant circuit of the battery bag heat-exchange system simultaneously.
Alternatively, the refrigerant inlet of first plate type heat exchanger cools down the outlet of branch road and the outdoor heat exchanger via the battery, and the first expansion valve is provided with the battery cooling branch road.
Alternatively, the automotive thermal tube reason system also includes second switch valve, the first throttle branch road connects via the second switch valve with the entrance of the indoor evaporator, the refrigerant inlet of first plate type heat exchanger connects via the battery cooling branch road of selective on or off with the entrance of the second switch valve, and is provided with first flow valve on battery cooling branch road.
Alternatively, it is provided with the 3rd switch valve on the battery cooling for reflux branch road.
Alternatively, the first check valve is provided with the battery cooling for reflux branch road, the 3rd switch valve connects via first check valve with the entrance of the compressor.
Alternatively, it is provided with second flow valve on battery heating branch road.
Alternatively, it is heated to reflux being provided with the second check valve on branch road in the battery.
Alternatively, the first water pump, deputy tank and the battery bag connected with first plate type heat exchanger are additionally provided with the coolant circuit of the battery bag heat-exchange system.
Alternatively, the 4th switch valve is provided with the described first through-flow branch road, the second expansion valve is provided with the first throttle branch road.
Alternatively, the heat pump type air conditioning system also includes expansion switch valve, the outlet of the entrance of the expansion switch valve and the indoor condenser, the outlet of the expansion switch valve connects with 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 road is the through-flow runner for expanding switch valve.
Alternatively, the 5th switch valve is provided with the described second through-flow branch road, the 3rd expansion valve is provided with the second throttling branch road.
Alternatively, the outlet of the indoor evaporator connects via the 3rd check valve with the entrance of the compressor.
Alternatively, the heat pump type air conditioning system is applied to electric automobile, and the second plate type heat exchanger is additionally provided with the second through-flow branch road, and second plate type heat exchanger is arranged in the electromotor cooling system of the electric automobile simultaneously.
Alternatively, the 5th switch valve is provided with the described second through-flow branch road, the refrigerant inlet of second plate type heat exchanger and the outlet of the outdoor heat exchanger, the refrigerant outlet of the plate type heat exchanger connect with the entrance of the 5th switch valve.
Alternatively, the electromotor cooling system includes connecting with second plate type heat exchanger to form the motor in loop, motor radiator and the second water pump.
Alternatively, the heat pump type air conditioning system also includes gas-liquid separator, the outlet of the indoor evaporator connects with the entrance of the gas-liquid separator, the outlet of the outdoor heat exchanger connects via the described second through-flow branch road with the entrance of the gas-liquid separator, the refrigerant outlet of first plate type heat exchanger connects via battery cooling for reflux branch road with the entrance of the gas-liquid separator, and the outlet of the gas-liquid separator connects with the entrance of the compressor.
Alternatively, the heat pump type air conditioning system also includes ptc heater, and the ptc heater is used to heat the wind for flowing through the indoor condenser.
Alternatively, the ptc heater is arranged on the windward side or leeward side of the indoor condenser.
According to the second aspect of the invention, there is provided a kind of electric automobile, including above-described automotive thermal tube reason system.
Automotive thermal tube provided by the invention manages system, in the case where not changing refrigerant circulation direction, you can realize the refrigeration and heat-production functions of air conditioner heat pump system.In addition, branch road, the first plate type heat exchanger and battery cooling for reflux branch road collectively constitutes and indoor evaporator is in parallel the refrigerant diverter branch being used for battery cooling are cooled down by battery due to increasing, and increase is heated to reflux branch road by battery heating branch road, the first plate type heat exchanger and battery and collectively constitutes the refrigerant diverter branch being used for battery heating being in parallel with branch road where indoor condenser and first switch valve, battery can be avoided to be directly arranged in indoor evaporator, beneficial to arrangement.In addition, automotive thermal tube reason system can pass through battery water circulation system, first with refrigerant so that coolant cooling or heating, coolant is recycled to be cooled down or heated to battery, so that battery works within the scope of suitable temperature all the time, so as to improve the efficiency for charge-discharge of battery, endurance and service life.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, is used to explain the present invention together with following embodiment, but be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation according to the heat pump type air conditioning system of one embodiment of the present invention；
Fig. 2 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 3 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 4 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 5 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；
Fig. 6 is the structural representation that system is managed according to the automotive thermal tube of one embodiment of the present invention；
Fig. 7 is the structural representation that system is managed according to the automotive thermal tube of another embodiment of the invention；
Fig. 8 is the overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；
Fig. 9 be along the cross-sectional view crossed by Fig. 8 center lines AB-AB, wherein, the first valve port and the second valve port are in open mode；
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 be along the cross-sectional view crossed by Fig. 8 center lines AB-AB, wherein, the first valve port is in open mode, and the second valve port is in closure state；
Figure 12 be along the cross-sectional view crossed by Fig. 8 center lines AB-AB, wherein, the first valve port is in closure state, and the second valve port is in open mode；
Figure 13 is the positive structure diagram along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides；
Figure 14 be along the cross-sectional view crossed by Figure 13 center lines AC-AC, wherein, the first valve port is in open mode, and the second valve port is in closure state；
Figure 15 is the first internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, the first valve port and the second valve port are in open mode；
Figure 16 is the partial enlarged drawing in A portions in Figure 15；
Figure 17 is the second internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, the first valve port is in open mode, and the second valve port is closed；
Figure 18 is the 3rd internal structure schematic diagram of the expansion switch valve that the preferred embodiment for the present invention provides, wherein, the first valve port is closed, and the second valve port is in open mode.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that embodiment described herein is merely to illustrate and explain the present invention, it is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, the noun of locality used such as " upper and lower, left and right " is typically for the page of accompanying drawing, " upstream, downstream " is relative to medium, e.g., for the flow direction of refrigerant, specifically, be downstream towards the flow direction of refrigerant, be upstream away from the flow direction of refrigerant, " inside and outside " refer to corresponding component profile it is interior with it is outer.
In the present invention, electric automobile can include pure electric automobile, hybrid vehicle, fuel cell car.
Fig. 1 is the structural representation according to the heat pump type air conditioning system of one embodiment of the present invention.As shown in figure 1, the system can include：HVAC (heating and ventilation and air-conditioning, Heating Ventilation and Air Conditioning) assembly 600 and air door mechanism (not shown), wherein, air door mechanism can be used for the air channel for leading to indoor evaporator 602 and indoor condenser 601.In addition, the system also includes compressor 604 and outdoor heat exchanger 605.Wherein, HVAC assemblies 600 can include indoor condenser 601 and indoor evaporator 602.The outlet of compressor 604 connects with the entrance of indoor condenser 601, connected via first throttle branch road or the first through-flow branch road with the entrance of outdoor heat exchanger 605 egress selection of indoor condenser 601, connect with the entrance of indoor evaporator 602 via the second throttling branch road the egress selection of outdoor heat exchanger 605 or connected via the entrance of the second through-flow branch road compressor 604, the outlet of indoor evaporator 602 connects with the entrance of compressor 604.
In the present invention, or the outlet of indoor condenser 601 connects via first throttle branch road with the entrance of outdoor heat exchanger 605, otherwise connected via the first through-flow branch road with the entrance of outdoor heat exchanger 605.This mode of communicating can be realized using various ways.Such as, in one embodiment, as shown in Figure 1, heat pump type 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 of the expansion switch valve 603 connect with the entrance of outdoor heat exchanger 605, wherein, first throttle branch road is the throttling runner of expansion switch valve 603, and the first through-flow branch road is the through-flow runner of expansion switch valve 603.
In the present invention, expansion switch valve is the valve for having simultaneously expansion valve function (also referred to as electric expansion valve function) and switch valve function (also referred to as magnetic valve function), and it is integrating for switch valve and expansion valve that can be regarded as.Through-flow runner and throttling runner are internally formed in expansion switch valve, when expansion switch valve as switch valve in use, its internal through-flow runner conducting, now forms through-flow branch road；When expansion switch valve as expansion valve in use, its internal throttling runner conducting, now forms throttling branch road.
Embodiment alternatively, as shown in Fig. 2 the heat pump type air conditioning system can also include the 4th switch valve 608 and the second expansion valve 607, wherein, the 4th switch valve 608 is provided with first through-flow branch road, the second expansion valve 607 is provided with first throttle branch road.Specifically, as shown in Figure 2, the outlet of indoor condenser 601 is connected via the 4th switch valve 608 with the entrance of outdoor heat exchanger 605 to form the first through-flow branch road, and the outlet of indoor condenser 601 is connected to form first throttle branch road via the second expansion valve 607 with the entrance of outdoor heat exchanger 605.When system is under high-temperature refrigeration pattern, the 4th switch valve 608 is turned on, and the second expansion valve 607 is closed, and the outlet of indoor condenser 601 connects via the first through-flow branch road with the entrance of outdoor heat exchanger 605.When system is under low temperature heating pattern, the second expansion valve 607 is turned on, and the 4th switch valve 608 is closed, and the outlet of indoor condenser 601 connects via first throttle branch road with the entrance of outdoor heat exchanger 605.
Laid in order to facilitate pipeline, save space hold, it is preferable that using expansion switch valve 603 in heat pump type air conditioning system provided by the invention, i.e. the embodiment shown in Fig. 1.
It is similar with the implementation of the first through-flow branch road and first throttle branch road in the embodiment of above-mentioned replacement, as shown in figure 1, being provided with the 5th switch valve 610 on the second through-flow branch road, the 3rd expansion valve 609 is provided with the second throttling branch road.Specifically, as shown in Figure 3, the outlet of outdoor heat exchanger 605 connects via the 5th switch valve 610 with the entrance of compressor 604 to form the second through-flow branch road, and the outlet of outdoor heat exchanger 605 connects to form the second throttling branch road via the 3rd expansion valve 609 with the entrance of indoor evaporator 602.When system is under high-temperature refrigeration pattern, the 3rd expansion valve 609 is turned on, and the 5th switch valve 610 is closed, and the outlet of outdoor heat exchanger 605 connects via the second throttling branch road with the entrance of indoor evaporator 602.When system is under low temperature heating pattern, the 5th switch valve 610 is turned on, and the 3rd expansion valve 609 is closed, and the outlet of outdoor heat exchanger 605 connects via the second through-flow branch road with the entrance of compressor 604.
Fig. 3 shows the structural representation of the heat pump type air conditioning system according to another embodiment of the present invention.As shown in figure 3, the heat pump type air conditioning system can also include the check valve 615 of gas-liquid separator 611 and the 3rd, wherein, the outlet of indoor evaporator 602 connects with the entrance of gas-liquid separator 611, and the outlet of gas-liquid separator 611 connects with the entrance of compressor 604.So, 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 is back in compressor 604 again, compressor 604 is damaged so as to prevent liquid refrigerant from entering compressor 604, so as to extend the service life of compressor 604, and improve the efficiency of whole heat pump type air conditioning system.The outlet of indoor evaporator 602 is connected by the 3rd check valve 615 with the entrance of gas-liquid separator 611.Here, it is to prevent that refrigerant is back to indoor evaporator 602 under low temperature heating pattern (described in detail below), influences heating effect to set the 3rd check valve 615.
Under low temperature heating pattern, in order to improve heating ability simultaneously, it is preferable that as shown in figure 4, being provided with the second plate type heat exchanger 612 in whole heat pump type air conditioning system, second plate type heat exchanger 612 is also disposed in the electromotor cooling system of electric automobile.So, the waste heat of electromotor cooling system can be utilized to give air-conditioning system refrigerant heat, so as to improve the suction temperature of compressor 604 and inspiratory capacity.Second plate type heat exchanger 612 can arbitrarily be arranged on the upstream or downstream of the 5th switch valve 610.In the embodiment illustrated in fig. 4, second plate type heat exchanger 612 is arranged on the upstream of the 5th switch valve 610, i.e., the refrigerant inlet 612a of second plate type heat exchanger 612 and the outlet of outdoor heat exchanger 605, the refrigerant outlet 612b of the second plate type heat exchanger 612 connect with the entrance of the 5th switch valve 610.(not shown) in another embodiment, second plate type heat exchanger 612 is arranged on the downstream of the 5th switch valve 610, i.e., the refrigerant inlet 612a of second plate type heat exchanger 612 and the outlet of the 5th switch valve 610, the refrigerant outlet 612b of the second plate type heat exchanger 612 connect with the entrance of gas-liquid separator 611.
At the same time, the second plate type heat exchanger 612 is arranged in electromotor cooling system simultaneously.As shown in figure 4, electromotor cooling system can include connecting with the second plate type heat exchanger 612 to form the motor in loop, the water pump 614 of motor radiator 613 and second.So, refrigerant can carry out heat exchange by the second plate type heat exchanger 612 with the coolant in electromotor cooling system.Refrigerant is returned in compressor 604 after the 5th switch valve 610.
In heat pump type air conditioning system provided by the invention, the various refrigerants such as R134a, R410a, R32, R290 can be used, preferentially select high temperature refrigerant.
Fig. 5 is the structural representation according to the heat pump type air conditioning system of another embodiment of the present invention.As shown in figure 5, HVAC assemblies 600 can also include ptc heater 619, the ptc heater 619 is used to heat the wind for flowing through indoor condenser 601.
In the present invention, ptc heater 619 can be high pressure PTC (being driven by vehicle high-tension battery), voltage range：200V-900V.Or ptc heater 619 can also be low pressure PTC (driving of 12V or 24V batteries), voltage range：9V-32V.In addition, this ptc heater 619 can be by several or a complete core body that several pieces of PTC-ceramic piece modules and radiating fin form, or the PTC-ceramic piece module of the strip with radiating fin or bulk.
In the present invention, the ptc heater 619 can arrange the windward side or leeward side of condenser 601 indoors.Also, in order to improve the heating effect of the wind to flowing through indoor condenser 601, the ptc heater 619 can be arranged in parallel with indoor condenser 601.In other embodiments, the ptc heater 619 can also be arranged in the blowing at pin air port and defrosting outlet of the casing of HVAC assemblies 600, can also be arranged at the air port of defrosting duct.
If ptc heater 619 is arranged in the windward side or leeward side of casing interior room inner condenser 601, it is arranged in parallel with indoor condenser 601, can the grooving on casing housing, ptc heater 619, which is inserted perpendicularly into, puts casing into, welding support on the side plate of condenser 601, ptc heater 619 it can also be fixed by screws in indoors on the support of indoor condenser 601.If ptc heater 619 is arranged in into the blowing at pin air port and defrosting outlet of casing, or it is arranged at the air port of defrosting duct, can be directly anchored to by screw at the air port of casing air outlet and wind passage mouth.
By this embodiment, when temperature is too low outside car, and the heating capacity of heat pump low temperature heating is unsatisfactory for in-car demand, the auxiliary heating heating of ptc heater 619 can be run, it is possible thereby to which heating capacity is small when eliminating heat pump type air conditioning system low-temperature heating, the defects of vehicle defrosting-defogging is slow, and heating effect is bad.
Fig. 6 is the structural representation that system is managed according to the automotive thermal tube of one embodiment of the present invention.As shown in Figure 6, automotive thermal tube reason system can include heat pump type air conditioning system described above, battery bag heat-exchange system and the first plate type heat exchanger 620, wherein, the refrigerant inlet of first plate type heat exchanger 620 connects via the battery cooling branch road of selective on or off with the outlet of outdoor heat exchanger 605 or the entrance of indoor evaporator 602, the refrigerant outlet of first plate type heat exchanger 620 is connected via battery cooling for reflux branch road with the entrance of compressor 604, and the first plate type heat exchanger 620 is connected in the battery coolant circuit of battery bag heat-exchange system simultaneously.
I.e., main inventive concept as the present invention, it is that branch road, the first plate type heat exchanger 620 and battery cooling for reflux branch road collectively constitutes and indoor evaporator 602 is in parallel the refrigerant diverter branch for being used to cool down battery are cooled down by battery by increasing, so, when high-temperature refrigeration is powered up under the refrigerating mode of pond, refrigerant is segmented into two strands：Wherein one refrigerant flow direction indoor evaporator 602, and evaporated indoors in evaporator 602, indoor environment heat is absorbed, reduces indoor temperature；Another strand of the first plate type heat exchanger of refrigerant flow direction 620, and exchanged heat by the first plate type heat exchanger 620 and the coolant in the battery coolant circuit of battery bag heat-exchange system, the heat of coolant is absorbed, and then the cooling to battery bag 622 can be realized.
In the present invention, the connected mode of the refrigerant inlet of the first plate type heat exchanger 620 has both of which：In one embodiment, as shown in fig. 6, the refrigerant inlet of the first plate type heat exchanger 620 can cool down the outlet of branch road and outdoor heat exchanger 605 via the battery of selective on or off.Specifically, the first expansion valve 621 can be set on battery cooling branch road.So, it can control whether refrigerant can flow into the refrigerant inlet of the first plate type heat exchanger 620 by opening or closing the first expansion valve 621 according to the actual requirements.That is, it is in the conduction state to control battery cooling branch road, is in cut-off state.
In this embodiment, in the case where high-temperature refrigeration powers up pond refrigerating mode, the refrigerant of the medium temperature high pressure come out from outdoor heat exchanger 605 is directly divided into two strands：One flows to the 3rd expansion valve 609；Another plume is to the first expansion valve 621.In other words, now refrigerant is to carry out reducing pressure by regulating flow respectively on every branch road again after shunting.
In another embodiment, as shown in fig. 7, automotive thermal tube reason system also includes the 4th switch valve 626, the second throttling branch road connects via the 4th switch valve 626 with the entrance of indoor evaporator 602.Specifically, in the embodiment shown in figure, the outlet of the 3rd expansion valve 609 connects via the 4th switch valve 626 with the entrance of indoor evaporator 602.The refrigerant inlet of first plate type heat exchanger 620 connects via the battery cooling branch road of selective on or off with the entrance of the 4th switch valve 626, and is provided with first flow valve 627 on battery cooling branch road.
So, it can control whether refrigerant can flow into the refrigerant inlet of the first plate type heat exchanger 620 by controlling first flow valve 627, i.e. control battery cooling branch road is in the conduction state, is in cut-off state.In addition, the size that control first flow valve 627 can also flow into the flow of the first plate type heat exchanger 620 according to regulation and control refrigerant is actually needed.
In this embodiment, in the case where high-temperature refrigeration powers up pond refrigerating mode, the refrigerant of the medium temperature high pressure come out from outdoor heat exchanger 605 is divided into two strands after the throttling of the 3rd expansion valve 609：One flows to the 4th switch valve 626, another plume to first flow valve 627, wherein, first flow valve 627 can realize the function of the distribution of the flow proportional of two strands of refrigerants.Now, refrigerant is that reducing pressure by regulating flow is first carried out on main line and then is shunted again.
In order to prevent under low temperature heating pattern, the refrigerant of low-temp low-pressure is back in the first plate type heat exchanger 620, and the first check valve 628 is provided with battery cooling for reflux branch road.That is, the first check valve 628 can only uniaxially allow the refrigerant outlet of refrigerant from the first plate type heat exchanger 620 to flow to the entrance of compressor 604, and can not flow round about.
Specifically, the first water pump 624, deputy tank 625 and the battery bag 622 connected with the first plate type heat exchanger 620 are additionally provided with the coolant circuit of battery bag heat-exchange system.
Such as, in one embodiment, the cooling liquid outlet of battery bag 622 connects with the coolant inlet of deputy tank 625, the cooling liquid outlet of deputy tank 625 connects with the coolant inlet of the first water pump 624, the cooling liquid outlet of first water pump 624 connects with the coolant inlet of the first plate type heat exchanger 620, the cooling liquid outlet of first plate type heat exchanger 620 connects with the coolant inlet of battery bag 622, is consequently formed the circulation of battery bag cooling/heating.
As above, to prevent liquid refrigerant enters compressor 604 from damaging compressor 604, so as to extend the service life of compressor 604, and the efficiency of whole heat pump type air conditioning system is improved, gas-liquid separator 611 is provided with heat pump type air conditioning system.As shown in Figure 6 and Figure 7, in addition to the entrance of gas-liquid separator 611 connects except the outlet with indoor evaporator 602 and the 5th switch valve 610, the refrigerant outlet of the first plate type heat exchanger 620 also connects via battery cooling for reflux branch road with the entrance of gas-liquid separator 611.In other words, the liquid refrigerant come out from the first plate type heat exchanger 620 can also first pass around gas-liquid separator 611 and carry out gas-liquid separation, the gas isolated is back in compressor 604 again, and compressor 604 is damaged so as to prevent liquid refrigerant from entering compressor 604.
Return now in the structural representation of the automotive thermal tube reason system shown in Fig. 7.As shown in Figure 7, within the system, automotive thermal tube reason system can also include first switch valve 630, wherein, the outlet of indoor condenser 601 connects with the entrance of first switch valve 630, is connected via first throttle branch road or the first through-flow branch road with the entrance of outdoor heat exchanger 605 egress selection of first switch valve 630.Specifically as shown in fig. 7, the outlet of first switch valve 630 can connect via expansion switch valve 603 with the entrance of outdoor heat exchanger 605.In addition, the refrigerant inlet of first plate type heat exchanger 620 heats the outlet of branch road and compressor 604 via the battery of selective on or off, the refrigerant outlet of first plate type heat exchanger 620 is heated to reflux the outlet of branch road and first switch valve 630 via battery, and the first plate type heat exchanger 620 is connected in the battery coolant circuit of battery bag heat-exchange system simultaneously.
I.e., another inventive concept as the present invention, it is by increasing first switch valve 630 between condenser 601 indoors and expansion switch valve 603, and battery heating branch road of the increase connection between the refrigerant inlet of the first plate type heat exchanger 620 and the entrance of indoor condenser 601, and the battery connected between the outlet of the refrigerant outlet and first switch valve 630 of the first plate type heat exchanger 620 is heated to reflux branch road, wherein, battery heats branch road, first plate type heat exchanger 620 and battery are heated to reflux branch road and collectively constitute a refrigerant diverter branch being used for battery heating being in parallel with the branch road where indoor condenser 601 and first switch valve 630.So, when low temperature heating adds under battery-heated model, the refrigerant of the HTHP come out from compressor 604, two strands are segmented into：The entrance of condenser 601 wherein in one refrigerant flow direction room, condense heat release, raise indoor environment temperature, the outlet of indoor condenser 601 is the liquid refrigerant of medium temperature high pressure, the outlet of indoor condenser 601 is connected with the entrance of first switch valve 630, another strand of the first plate type heat exchanger of refrigerant flow direction 620, and exchanged heat by the first plate type heat exchanger 620 and the coolant in the battery coolant circuit of battery bag heat-exchange system, the heat of coolant absorption refrigeration agent release, and then the heat temperature raising to battery bag can be realized.
Battery heating branch road whether is flowed through for ease of control refrigerant, second flow valve 631 is provided with battery heating branch road.So, when needing to heat battery, for example, under battery-heated model, second flow valve 631 can be opened, now, refrigerant can flow through the first plate type heat exchanger 620, there is provided heat gives battery bag heat-exchange system.When that need not be heated to battery, for example, under battery refrigerating mode, second flow valve 631 can be closed, prevents the refrigerant of HTHP from entering the first plate type heat exchanger 620 and carrying out heat temperature raising to battery, causing the temperature of battery further increases.In addition, second flow valve 631 also has the function that the ratio for distributing two strands of refrigerant flows.
To prevent under battery-heated model, the refrigerant of the liquid of the cryogenic high pressure come out from the refrigerant outlet of the first plate type heat exchanger 620 flows directly into compressor 604, causes the infringement to compressor, the 3rd switch valve 633 is provided with battery cooling for reflux branch road.So, when system is under battery-heated model, it can use and close the 3rd switch valve 633 so that the refrigerant of the cryogenic high pressure come out from the refrigerant outlet of the first plate type heat exchanger 620 is all heated to reflux branch road flow direction expansion switch valve 603 via battery.
As described above, in order to prevent under low temperature heating pattern, the refrigerant of low-temp low-pressure is back in the first plate type heat exchanger 620, and the first check valve 628 is provided with battery cooling for reflux branch road.Wherein, the 3rd switch valve 633 connects via the first check valve 628 with the entrance of compressor 604.
To prevent under battery refrigerating mode, the gas refrigerant of the HTHP come out from indoor condenser 601 is after first switch valve 630, the refrigerant outlet that branch road flows to the first plate type heat exchanger 620 is heated to reflux along battery, is heated to reflux being provided with the second check valve 632 on branch road in battery.That is, the second check valve 632 can uniaxially allow refrigerant outlet flow direction expansion switch valve 603 of the refrigerant from the first plate type heat exchanger 620, and can not flow in opposite direction.
Cyclic process and principle of the system under different mode of operations will be managed by taking Fig. 6 as an example automotive thermal tube provided by the invention is described in detail below.It should be appreciated that the system circulation process and principle under other embodiment (for example, embodiment shown in Fig. 7) are similar to Fig. 6, just no longer repeat one by one herein.
Pattern one：High-temperature refrigeration pattern.System in this mode when, whole system formed a high-temperature refrigeration circulatory system.As shown in fig. 6, first, compressor 604 discharges the gas of HTHP through overcompression, is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, the indoor condenser 601 is only used as runner, and now indoor condenser 601 is exported still as the gas of HTHP.The indoor outlet of condenser 601 is connected with expansion switch valve 603, now expands switch valve 603 and plays switch valve action, is only flowed through as runner, now expands switch valve 603 and exports still as the gas of HTHP.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air, and outdoor heat exchanger 605 exports the liquid for medium temperature high pressure.Now, the 5th switch valve 610 is closed, and the first expansion valve 621 is closed, and the outlet of outdoor heat exchanger 605 is connected with the 3rd expansion valve 609, and the 3rd expansion valve 609 plays throttling action as restricting element, and its outlet is low temperature and low pressure liquid.The aperture of 3rd expansion valve 609 can give certain aperture according to the actual requirements, and this aperture can calculate indoor evaporator 602 according to the pressure and temperature gathered data of the pressure-temperature sensor between the entrance of the outlet of indoor evaporator 602 and gas-liquid separator 611 and export refrigerant superheat degree to adjust.The outlet of 3rd expansion valve 609 is connected with the entrance of indoor evaporator 602, and low temperature and low pressure liquid is evaporated in evaporator 602 indoors so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure.The outlet of indoor evaporator 602 is connected with the entrance of the 3rd check valve 615, the outlet of 3rd check valve 615 is connected with the entrance of gas-liquid separator 611, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.Now the flow direction of the apoplexy of HVAC assemblies 600 flows only through indoor evaporator 602, indoor 601 calm process of condenser, is only flowed through as refrigerant flow path.
Pattern two：Battery refrigerating mode.System in this mode when, battery bag heat-exchange system formed a battery bag cooling recirculation system.As shown in fig. 6, compressor 604 discharges the gas of HTHP through overcompression, it is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, the indoor condenser 601 is only used as runner, and now indoor condenser 601 is exported still as the gas of HTHP.The indoor outlet of condenser 601 is connected with expansion switch valve 603, now expands switch valve 603 and plays switch valve action, is only flowed through as runner, now expands switch valve 603 and exports still as the gas of HTHP.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air, and outdoor heat exchanger 605 exports the liquid for medium temperature high pressure.Now, the 5th switch valve 610 is closed, and the 3rd expansion valve 609 is closed, and the outlet of outdoor heat exchanger 605 is connected with the first expansion valve 621, and the first expansion valve 621 plays throttling action as restricting element, and its outlet is low temperature and low pressure liquid.The aperture of first expansion valve 621 can give certain aperture according to the actual requirements, and this aperture can calculate refrigerant superheat degree to adjust according to the pressure and temperature gathered data of the pressure-temperature sensor between the outlet of the first plate type heat exchanger 620 and the entrance of gas-liquid separator 611.The outlet of first expansion valve 621 is connected with the refrigerant inlet of the first plate type heat exchanger 620, low temperature and low pressure liquid is exchanged heat in the first plate type heat exchanger 620 with the hot water come out from battery bag 622 so that the refrigerant outlet of the first plate type heat exchanger 620 is the gas of low-temp low-pressure.The refrigerant outlet of first plate type heat exchanger 620 is connected with the entrance of the first check valve 628, the outlet of first check valve 628 is connected with the entrance of gas-liquid separator 611, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.Now the flow direction of the apoplexy of HVAC assemblies 600 flows only through indoor evaporator 602, indoor 601 calm process of condenser, is only flowed through as refrigerant flow path.
Pattern three：High-temperature refrigeration powers up pond refrigerating mode.System in this mode when, whole system forms high-temperature refrigeration battery cooling recirculation system simultaneously.As shown in fig. 6, first, compressor 604 discharges the gas of HTHP through overcompression, is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601 by air door mechanism, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, the indoor condenser 601 is only used as runner, and now indoor condenser 601 is exported still as the gas of HTHP.The indoor outlet of condenser 601 is connected with expansion switch valve 603, now expands switch valve 603 and plays switch valve action, is only flowed through as runner, now expands switch valve 603 and exports still as the gas of HTHP.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, and outdoor heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air, and outdoor heat exchanger 605 exports the liquid for medium temperature high pressure.Now, the 5th switch valve 610 is closed, and the first expansion valve 621 is opened, and outdoor heat exchanger 605 exports to be connected with the 3rd expansion valve 609 and the first expansion valve 621 respectively.Now, 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 the 3rd expansion valve 609, and the 3rd expansion valve 609 plays throttling action as restricting element, and its outlet is low temperature and low pressure liquid.The aperture of 3rd expansion valve 609 can give certain aperture according to the actual requirements, and this aperture can calculate indoor evaporator 602 according to the pressure and temperature gathered data of the pressure-temperature sensor between the entrance of the outlet of indoor evaporator 602 and gas-liquid separator 611 and export refrigerant superheat degree to adjust.The outlet of 3rd expansion valve 609 is connected with the entrance of indoor evaporator 602, low temperature and low pressure liquid is evaporated in evaporator 602 indoors, so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure, the outlet of indoor evaporator 602 is connected with the entrance of the 3rd check valve 615.Entrance of another plume to the first expansion valve 621, the aperture of first expansion valve 621 can give certain aperture according to the actual requirements, and this aperture can calculate refrigerant superheat degree to adjust according to the pressure and temperature gathered data of the pressure-temperature sensor between the refrigerant outlet of the first plate type heat exchanger 620 and the entrance of gas-liquid separator 611.First expansion valve 621 plays throttling action as restricting element, and its outlet is low temperature and low pressure liquid.The outlet of first expansion valve 621 is connected with the refrigerant inlet of the first plate type heat exchanger 620, hot water of the low temperature and low pressure liquid with being come out from battery bag 622 in the first plate type heat exchanger 620 carries out heat exchange, so that the refrigerant outlet of the first plate type heat exchanger 620 is the gas of low-temp low-pressure, the refrigerant outlet of the first plate type heat exchanger 620 is connected with the first check valve 628.The outlet of 3rd check valve 615 and the outlet of the first check valve 628 are connected with gas-liquid separator 611 respectively, refrigerant from the refrigerant of the outlet of the first check valve 628 out with the outlet from the first check valve 628 out converges, the liquid not being evaporated is separated by gas-liquid separator 611, the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.Now the flow direction of the apoplexy of HVAC assemblies 600 flows only through indoor evaporator 602, indoor 601 calm process of condenser, is only flowed through as refrigerant flow path.
Pattern four：Low temperature heating pattern.System in this mode when, whole system formed a low temperature heating circulation system.As shown in fig. 6, first, compressor 604 discharges the gas of HTHP through overcompression, it is connected with indoor condenser 601, now, indoor condenser 601 has wind process, the gas of HTHP is condensed in condenser 601 indoors so that the indoor 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, now expands switch valve 603 and plays expansion valve, throttling action is played as restricting element, it exports the liquid for low-temp low-pressure.Wherein, the aperture of expansion switch valve 603 can give certain aperture according to the actual requirements, this aperture can according to the temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor installed in the exit of compressor 604 number adjust.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, and the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.Now, 5th switch valve 610 is opened, 3rd expansion valve 609 is closed, first expansion valve 621 is closed, refrigerant is directly entered in gas-liquid separator 611 without indoor evaporator 602, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.
Pattern five：Battery-heated model.System in this mode when, battery bag heat-exchange system formed a battery bag cooling recirculation system.As shown in Figure 6, first, compressor 604 discharges the gas of HTHP through overcompression, it is connected with second flow valve 631, now, second flow valve 631 is opened, first switch valve 630 is closed, the outlet of second flow valve 631 is the gas of HTHP, the outlet of second flow valve 631 is connected with the first plate type heat exchanger 620, the gas of HTHP is exchanged heat in the first plate type heat exchanger 620 with the cold water come out from battery bag 622 so that the refrigerant outlet of the first plate type heat exchanger 620 is the liquid of medium temperature high pressure.The refrigerant outlet of first plate type heat exchanger 620 is connected to the entrance of expansion switch valve 603 by the second check valve 632, now expands switch valve 603 and plays expansion valve, throttling action is played as restricting element, it exports the liquid for low-temp low-pressure.Wherein, the aperture of expansion switch valve 603 can give certain aperture according to the actual requirements, this aperture can according to the temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor installed in the exit of compressor 604 number adjust.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, and the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.Now, 6th switch valve 610 is opened, 3rd expansion valve 609 is closed, first expansion valve 621 is closed, refrigerant is directly entered in gas-liquid separator 611 without indoor evaporator 602, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.
Pattern six：Low temperature heating adds battery-heated model.System in this mode when, battery bag heat-exchange system formed a battery bag heating circulation system.
As shown in fig. 7, first, compressor 604 discharges the gas of HTHP through overcompression, is connected respectively with indoor condenser 601 and the entrance of second flow valve 631 is connected, now, the gas of the HTHP come out from compressor 604 is divided into two strands：One is condensed in condenser 601 indoors so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure, and the outlet of indoor condenser 601 is connected with the entrance of first switch valve 630.Another stock-traders' know-how crosses second flow valve 631 and flows into the first plate type heat exchanger 620, cold water with being come out from battery bag 622 at the first plate type heat exchanger 620 carries out heat exchange, the refrigerant outlet of first plate type heat exchanger 620 is the liquid refrigerant of medium temperature high pressure, and the refrigerant outlet of the first plate type heat exchanger 620 is connected by the second check valve 632 with the outlet of first switch valve 630.The liquid refrigerant of two bursts of medium temperature high pressures converges in the exit of first switch valve 630, and flows into the entrance of expansion switch valve 603.Now expansion switch valve 603 plays expansion valve, and throttling action is played as restricting element, and it exports the liquid for low-temp low-pressure.Wherein, the aperture of expansion switch valve 603 can give certain aperture according to the actual requirements, this aperture can according to the temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor installed in the exit of compressor 604 number adjust.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, and the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.Now, 5th switch valve 610 is opened, 3rd expansion valve 609 is closed, first expansion valve 621 is closed, refrigerant is directly entered in gas-liquid separator 611 without indoor evaporator 602, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation.
To sum up, automotive thermal tube reason system provided by the invention, in the case where not changing refrigerant circulation direction, you can realize the refrigeration and heat-production functions of air conditioner heat pump system.In addition, branch road, the first plate type heat exchanger and battery cooling for reflux branch road collectively constitutes and indoor evaporator is in parallel the refrigerant diverter branch being used for battery cooling are cooled down by battery due to increasing, and increase is heated to reflux branch road by battery heating branch road, the first plate type heat exchanger and battery and collectively constitutes the refrigerant diverter branch being used for battery heating being in parallel with branch road where indoor condenser and first switch valve, battery can be avoided to be directly arranged in indoor evaporator, beneficial to arrangement.In addition, automotive thermal tube reason system can pass through battery water circulation system, first with refrigerant so that coolant cooling or heating, coolant is recycled to be cooled down or heated to battery, so that battery works within the scope of suitable temperature all the time, so as to improve the efficiency for charge-discharge of battery, endurance and service life.
As described above, in the present invention, expansion switch valve is the valve for having simultaneously expansion valve function and switch valve function, and it is the integrated of switch valve and expansion valve that can be regarded as.It will be provided below a kind of example embodiment for expanding switch valve.
As shown in Figure 8, expansion switch valve mentioned above can include valve body 500, wherein, inner flow passage on the valve body 500 formed with import 501, outlet 502 and connection between import 501 and outlet 502, first valve element 503 and the second valve element 504 are installed on inner flow passage, first valve element 503 causes import 501 directly to be connected with outlet 502 or disconnect connection, and the second valve element 504 causes import 501 to be connected with outlet 502 by restriction 505 or disconnect connection.
Wherein, " the directly connection " that first valve element is realized refers to that the cooling agent from the entrance of import 501 of valve body 500 can cross the first valve element and the outlet 502 of valve body 500 is insusceptibly flowed directly to by inner flow passage, and " the disconnecting connection " that the first valve element is realized refers to that the cooling agent from the entrance of import 501 of valve body 500 can not cross the first valve element and the outlet 502 of valve body 500 can not be flowed to by inner flow passage." being connected by restriction " that second valve element is realized refers to that the second valve element can be crossed to flow to the outlet 502 of valve body 500 after the throttling by restriction from the cooling agent of the entrance of import 501 of valve body 500, and " the disconnecting connection " that the second valve element is realized refers to that the cooling agent from the entrance of import 501 of valve body 500 can not cross the second valve element and the outlet 502 of valve body 500 can not be flowed to by restriction 505.
So, by the control to the first valve element and the second valve element, expansion switch valve of the invention can at least to realize three kinds of states from the cooling agent that import 501 enters.That is, 1) cut-off state；2) the direct connected state of the first valve element 503 is crossed；And 3) cross the throttling mode of communicating of the second valve element 504.
Wherein, the liquid refrigerant of HTHP is again after the throttling of restriction 505, the vaporific hydraulic pressure refrigerant of low-temp low-pressure can be turned into, it can be created conditions for the evaporation of refrigerant, i.e. the cross-sectional area of restriction 505 is less than the cross-sectional area of outlet 504, and by controlling the second valve element, the aperture size of restriction 505 can be adjusted, with flow of the controlling stream through restriction 505, prevent because refrigerant it is very few caused by freeze deficiency, and prevent from causing compressor generation liquid hit phenomenon because refrigerant is excessive.That is, the cooperation of the second valve element 504 and valve body 500 can make it that expanding switch valve has the function of expansion valve.
So, by installing the first valve element 503 and the second valve element 504 on the inner flow passage of same valve body 500, to realize the break-make control of import 501 and outlet 502 and/or throttling control function, it is simple in construction, it is readily produced and installs, and when expansion switch valve provided by the invention is applied to heat pump, the refrigerant charge of whole heat pump can be reduced, cost is reduced, simplifies pipeline connection, the more conducively oil return of heat pump.
A kind of exemplary inner mounting structure as valve body 500, as shown in Fig. 8 to Figure 13, valve body 500 includes forming the valve seat 510 of inner flow passage and the first valve casing 511 on the valve seat 510 and the second valve casing 512, the first electromagnetic drive part 521 for driving the first valve element 503 is installed in first valve casing 511, the second electromagnetic drive part 522 for driving the second valve element 504 is installed in second valve casing 512, the inner flow passage that first valve element 503 is extended in valve seat 510 from the first valve casing 511, the inner flow passage that second valve element 504 is extended in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., magnet coil, the control of power on/off can easily control the position of the first valve element 503, and then control import 501 and export 502 and directly connect or disconnect connection；By to the second electromagnetic drive part 522, e.g., magnet coil, the control of power on/off can easily control the position of the second valve element 504, so as to control whether import 501 and outlet 502 connect with restriction 505.In other words, the electric expansion valve and magnetic valve of shared import 501 and outlet 502 are installed in parallel in valve body 500, it is thus possible to realize the break-make of expansion switch valve and/or the Automated condtrol of throttling, and simplify pipeline trend.
To make full use of the locus of all directions of expansion switch valve, avoid expanding switch valve and connecting to produce with different pipelines interfering, valve seat 510 is formed as polyhedral structure, first valve casing 511, the second valve casing 512, import 501 and outlet 502 are separately positioned on the different surfaces of the polyhedral structure, wherein, the installation direction of first valve casing 511 and the second valve casing 512 is mutually perpendicular to, and the opening direction of import 501 and outlet 502 is mutually perpendicular to.So, import, export pipeline can be connected on the different surfaces of polyhedral structure, can avoid that pipeline arrangement is in disorder, the problem of tangling.
A kind of typical internal structure as expansion switch valve, it is as shown in Figs. 8 to 11, inner flow passage includes first flow 506 and the second flow channel 507 connected respectively with import 501, formed with the first valve port 516 coordinated with the first valve element 503 on first flow 506, restriction 505 is formed to be formed as the second valve port 517 coordinated with the second valve element 504 in second flow channel 507, and first flow 506 and second flow channel 507 are intersected in the downstream of the second valve port 517 and connected with outlet 502.
I.e., closing or the opening to the first valve port 516 are realized by converting the position of the first valve element 503, and then blocking or turning on for the first flow 506 of connection import 501 and outlet 502 is controlled, so as to realize the connection of above-described magnetic valve or disconnect the function of connection.Similarly, blocking or turning on to the second valve port 517 is realized by converting the position of the second valve element 504, so as to realize the throttling function of electric expansion valve.
First flow 506 and second flow channel 507 can be respectively communicated with import 501 and outlet 502 with any appropriate arrangement, to reduce the overall space-consuming of valve body 500, as shown in figure 12, second flow channel 507 opens up in the same direction with outlet 502, first flow 506 is formed as first through hole 526 orthogonal with second flow channel 507, import 501 is connected by the second through hole 527 being opened in the side wall of second flow channel 507 with second flow channel 507, and the through hole 527 of first through hole 526 and second is respectively communicated with import 501.Wherein, first through hole 526 can be set or be arranged in parallel in spatial vertical with the second through hole 527, the invention is not limited in this regard, be belonged among protection scope of the present invention.
For the further overall space-consuming for simplifying valve body 500, as shown in Figure 15 to Figure 16, import 501 is opened on valve body 500 mutual vertically with outlet 502.So, as shown in Figure 15 to Figure 17, the axis of import 501, the axis (i.e. the axis of second flow channel 507) for exporting 502, it is vertically arranged two-by-two in space with the axis of first flow 506, so as to prevent the mobile generation of the first valve element 503 and the second valve element 504 from interfering, and it can maximumlly utilize the inner space of valve body 500.
As is illustrated by figs. 11 and 12, for ease of realizing the closing of the first valve port 516 and opening, the first valve element 503 is along moving direction with the 516 coaxial laying of the first valve port selectively to block or depart from the first valve port 516.
For ease of realizing the closing of the second valve port 517 and opening, the second valve element 504 is along moving direction with the 517 coaxial laying of the second valve port selectively to block or depart from the second valve port 517.
Wherein, as shown in figure 14, the reliability blocked for the first valve element 503 of guarantee to first flow 506, first valve element 503 can include the first valve rod 513 and be connected to the first plug 523 of the end of the first valve rod 513, and first plug 523 is used to be sealed against on the end face of the first valve port 516 to block first flow 506.
For ease of the aperture size of the restriction 505 of regulation expansion switch valve, as is illustrated by figs. 11 and 12, second valve element 504 includes 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 the taper pore structure being engaged with the taper header structure.
Wherein, expand switch valve the aperture of restriction 505 can moving up and down to adjust by the second valve element 504, and moving up and down for the second valve element 504 can be adjusted by the second electromagnetic drive part 522.If the aperture for expanding the restriction 505 of switch valve is zero, as shown in figure 11, the second valve element 504 is in extreme lower position, and the second valve element 504 blocks the second valve port 517, and refrigerant can not pass through restriction 505, i.e. the second valve port 517 completely；If expansion switch valve restriction 505 has aperture, as shown in figure 12, there is space between the taper header structure and restriction 505 of the end of the second valve element 504, outlet 502 is flow to again after refrigerant throttling.If desired, can be by controlling the second electromagnetic drive part 522 so that the second valve element 504 moves up, to cause conical head structure away from restriction 505, so as to realize that the change of the aperture of restriction 505 is big during the throttle opening of increase expansion switch valve；On the contrary, when needing to reduce the aperture of restriction 505 of expansion switch valve, can drive mobile under the phase of the second valve element 504.
During use, when only needing to use the magnetic valve function of expansion switch valve, as shown in Figure 11, Figure 14 and Figure 17, first valve element 503 departs from the first valve port 516, first valve port 516 is in open mode, and the second valve element 504 is in extreme lower position, and the second valve element 504 blocks throttle orifice 505, the refrigerant of inner flow passage is flowed into from import 501 can not can only pass sequentially through the first valve port 516, first through hole 526 is flowed into outlet 502 by throttle orifice 505 completely.When magnetic valve powers off, the first valve element 503 is moved to the left, and the first plug 523 and the first valve port 516 separate, and refrigerant can pass through from first through hole 526；Work as solenoid valves, the first valve element 503 is moved right, and the first plug 523 and the first valve port 516 are bonded, and refrigerant can not pass through from first through hole 526.
It should be noted that the dotted line with the arrow in Figure 11 and Figure 13 represents flow route and trend of the refrigerant when using magnetic valve function.
When only needing to use the electric expansion valve function of expansion switch valve, as shown in Figure 12 and Figure 18, second valve port 517, i.e. restriction 505 is in open mode, first valve element 503 blocks the first valve port 516, the refrigerant of inner flow passage is flowed into from import 501 can only pass sequentially through the second through hole 527, restriction 505 flows into outlet 502, and can move up and down the second valve element 504 to adjust the size of the aperture of restriction 505 by first through hole 526.
It should be noted that the dotted line with the arrow in Figure 12 and Figure 18 represents flow route and trend of the refrigerant when using electric expansion valve function.
When needing simultaneously using the magnetic valve function and electric expansion valve function that expand switch valve, as shown in Fig. 9, Figure 15 and Figure 16, wherein, dotted line with the arrow represents the glide path and trend of refrigerant, first valve element 503 departs from the first valve port 516, first valve port 516 is in open mode, restriction 505 is in open mode, the refrigerant for flowing into inner flow passage can be respectively along first flow 506 and the flow direction of second flow channel 507 outlet 502, so as to have magnetic valve function and electric expansion valve function simultaneously.
It should be appreciated that one of which example of the above-mentioned embodiment as just expansion switch valve, and be not intended to limit the invention, there is the expansion switch valve of expansion valve function and switch valve function to be equally applicable to the present invention simultaneously for other.
The present invention also provides a kind of electric automobile, including according to above-mentioned heat pump type air conditioning system provided by the invention.Wherein, the electric automobile can include pure electric automobile, hybrid vehicle, fuel cell car.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the range of the technology design of the present invention; a variety of simple variants can be carried out to technical scheme, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in the case of reconcilable, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention no longer separately illustrates to various combinations of possible ways.
In addition, various embodiments of the present invention can be combined randomly, as long as it without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.

Claims (19)

1. a kind of automotive thermal tube manages system, it is characterised in that the automotive thermal tube reason system includes heat pump Air-conditioning system, battery bag heat-exchange system, first switch valve (630) and the first plate type heat exchanger (620), The heat pump type air conditioning system includes compressor (604), indoor condenser (601), indoor evaporator (602) With outdoor heat exchanger (605), the outlet of the compressor (604) and the indoor condenser (601) Entrance connection, the outlet of the indoor condenser (601) and entering for first switch valve (630) Mouthful connection, the egress selection of the first switch valve (630) via first throttle branch road or first Through-flow branch road connects with the entrance of the outdoor heat exchanger (605), the outdoor heat exchanger (605) Connected via the second through-flow branch road with the entrance of the compressor (604) or via egress selection Two throttling branch roads connect with the entrance of the indoor evaporator (602), the indoor evaporator (602) Outlet connected with the entrance of the compressor (604), the system of first plate type heat exchanger (620) Cryogen entrance cools down branch road and the outdoor heat exchanger (605) via the battery of selective on or off Outlet or connected with the entrance of the indoor evaporator (602), and via selective conducting Or the outlet of battery heating branch road and the compressor (604) of cut-off, described first board-like changes Battery cooling for reflux branch road and institute of the refrigerant outlet of hot device (620) via selective on or off The entrance connection of compressor (604) is stated, and branch road and the first switch are heated to reflux via battery The outlet of valve (630), first plate type heat exchanger (620) while is connected on the battery bag In the battery coolant circuit of heat-exchange system.
2. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet of formula heat exchanger (620) cools down branch road and the outdoor heat exchanger via the battery (605) outlet, the battery cool down and are provided with the first expansion valve (621) on branch road.
3. automotive thermal tube according to claim 1 manages system, it is characterised in that the automobile heat Management system also includes second switch valve (626), and the second throttling branch road is via the second switch valve (626) entrance with the indoor evaporator (602) connects, first plate type heat exchanger (620) Refrigerant inlet cool down branch road and the second switch valve via the battery of selective on or off (626) entrance connection, and it is provided with first flow valve (627) on battery cooling branch road.
4. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery The 3rd switch valve (633) is provided with cooling for reflux branch road.
5. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery The first check valve (628) is provided with cooling for reflux branch road.
6. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery Second flow valve (631) is provided with heating branch road.
7. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery It is heated to reflux being provided with the second check valve (632) on branch road.
8. automotive thermal tube according to claim 1 manages system, it is characterised in that the battery bag To be connected with first plate type heat exchanger (620) is additionally provided with the coolant circuit of heat-exchange system One water pump (624), deputy tank (625) and battery bag (622).
9. automotive thermal tube according to claim 1 manages system, it is characterised in that described first is logical The 4th switch valve (608) is provided with stream branch road, the second expansion valve is provided with the first throttle branch road (607)。
10. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes expansion switch valve (603), entrance and the interior of the expansion switch valve (603) The outlet of condenser (601), outlet and the outdoor heat exchanger of the expansion switch valve (603) (605) entrance connection, the first throttle branch road are the throttling stream for expanding switch valve (603) Road, the first through-flow branch road are the through-flow runner for expanding switch valve (603).
11. automotive thermal tube according to claim 1 manages system, it is characterised in that described second is logical The 5th switch valve (610) is provided with stream branch road, the 3rd expansion valve is provided with the second throttling branch road (609)。
12. automotive thermal tube according to claim 1 manages system, it is characterised in that the indoor steaming The outlet for sending out device (602) connects via the entrance of the 3rd check valve (615) and the compressor (604) It is logical.
13. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system is applied to electric automobile, and the second plate type heat exchanger is additionally provided with the second through-flow branch road (612), second plate type heat exchanger (612) while it is arranged on the motor cooling system of the electric automobile In system.
14. automotive thermal tube according to claim 13 manages system, it is characterised in that described second The 5th switch valve (610), the refrigeration of second plate type heat exchanger (612) are provided with through-flow branch road The outlet of agent entrance (612a) and the outdoor heat exchanger (605), second plate-type heat-exchange The refrigerant outlet (612b) of device (612) connects with the entrance of the 5th switch valve (610).
15. automotive thermal tube according to claim 13 manages system, it is characterised in that the motor Cooling system includes connecting to form the motor in loop, motor with second plate type heat exchanger (612) Radiator (613) and the second water pump (614).
16. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes gas-liquid separator (611), outlet and the gas of the indoor evaporator (602) The entrance connection of liquid/gas separator (611), the outlet of the outdoor heat exchanger (605) is via described second Through-flow branch road connects with the entrance of the gas-liquid separator (611), first plate type heat exchanger (620) Refrigerant outlet connected via battery cooling for reflux branch road with the entrance of the gas-liquid separator (611), The outlet of the gas-liquid separator (611) connects with the entrance of the compressor (604).
17. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes ptc heater (619), and the ptc heater (619) flows through described for heating The wind of indoor condenser (601).
18. automotive thermal tube according to claim 17 manages system, it is characterised in that the PTC Heater (619) is arranged on the windward side or leeward side of the indoor condenser (601).
19. a kind of electric automobile, it is characterised in that including according to any one in claim 1-18 Described automotive thermal tube reason system.
CN201610307088.0A 2016-05-10 2016-05-10 Automotive thermal tube manages system and electric car Active CN107351625B (en)

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CN108275021A (en) * 2018-02-09 2018-07-13 上海爱斯达克汽车空调系统有限公司 A kind of temperature control equipment for batteries of electric automobile and a kind of charging pile
CN108437737A (en) * 2018-02-06 2018-08-24 江苏金坛长荡湖新能源科技有限公司 A kind of electric vehicle temperature control energy saving system and control method
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
CN112572091A (en) * 2019-09-29 2021-03-30 杭州三花研究院有限公司 Thermal management system
CN113059980A (en) * 2021-03-31 2021-07-02 比亚迪股份有限公司 Integrated thermal management system and vehicle

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CN108437737A (en) * 2018-02-06 2018-08-24 江苏金坛长荡湖新能源科技有限公司 A kind of electric vehicle temperature control energy saving system and control method
CN108275021A (en) * 2018-02-09 2018-07-13 上海爱斯达克汽车空调系统有限公司 A kind of temperature control equipment for batteries of electric automobile and a kind of charging pile
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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
CN112572091A (en) * 2019-09-29 2021-03-30 杭州三花研究院有限公司 Thermal management system
CN112572091B (en) * 2019-09-29 2022-06-14 杭州三花研究院有限公司 Thermal management system
CN113059980A (en) * 2021-03-31 2021-07-02 比亚迪股份有限公司 Integrated thermal management system and vehicle

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