CN107351633A - 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
CN107351633A
CN107351633A CN201610309706.5A CN201610309706A CN107351633A CN 107351633 A CN107351633 A CN 107351633A CN 201610309706 A CN201610309706 A CN 201610309706A CN 107351633 A CN107351633 A CN 107351633A
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CN
China
Prior art keywords
valve
heat exchanger
outlet
entrance
branch road
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Granted
Application number
CN201610309706.5A
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Chinese (zh)
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CN107351633B (en
Inventor
汪孟瑛
叶梅娇
陈雪峰
黄健
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201610309706.5A priority Critical patent/CN107351633B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/22Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307Component temperature regulation using a liquid flow

Abstract

The invention discloses a kind of automotive thermal tube reason system and electric automobile, automotive thermal tube reason system includes heat pump type air conditioning system, battery bag heat-exchange system, engine-cooling system and the first plate type heat exchanger, heat pump type air conditioning system and engine-cooling system are exchanged heat by the first plate type heat exchanger and battery bag heat-exchange system respectively, heat pump type air conditioning system includes compressor, indoor condenser, indoor evaporator and outdoor 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 the outdoor heat exchanger or the entrance of the indoor evaporator, the refrigerant outlet of first plate type heat exchanger connects via battery cooling for reflux branch road with the entrance of the compressor.Thus, except the demand realized in-car refrigeration and heated, the function of also cooling down and heat with battery, battery is worked all the time within the scope of suitable temperature, improve battery efficiency, endurance and service life.

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 which a kind of automotive thermal tube manages system and including this Automotive thermal tube manages the electric automobile of system.
Background technology
The battery efficiency for ensureing electric automobile is high, it is necessary to there is suitable operating temperature, it is too high or Height can all make a big impact to its performance and endurance.China Patent Publication No. is CN205039220U utility model discloses a kind of automobile power cell cooling system.The electrokinetic cell Although cooling system can be cooled down by evaporator in refrigeration to electrokinetic cell, electrokinetic cell with Evaporator, which is close together, to be exchanged heat, although feasible in principle, is difficult on car, because steaming Device is sent out typically all in air conditioning box body, cabinet space is limited, and the electrokinetic cell of pure electric automobile is very big, It 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, there is provided a kind of vapour Car heat management system, wherein, the automotive thermal tube reason system includes heat pump type air conditioning system, battery bag exchanges heat System, engine-cooling system and the first plate type heat exchanger, the heat pump type air conditioning system and the engine Cooling system is exchanged heat by first plate type heat exchanger and the battery bag heat-exchange system respectively, the heat Pump air conditioner system includes compressor, indoor condenser, indoor evaporator and outdoor heat exchanger, the compression The outlet of machine connects with the entrance of the indoor condenser, passes through the egress selection of the indoor condenser Connected by first throttle branch road or the first through-flow branch road with the entrance of the outdoor heat exchanger, the outdoor is changed Connected via the second through-flow branch road with the entrance of the compressor or via the egress selection of hot device Two throttling branch roads connect with the entrance of the indoor evaporator, the outlet of the indoor evaporator and the pressure The entrance connection of contracting machine, the refrigerant inlet of first plate type heat exchanger is via selective on or off Battery cooling branch road connected with the outlet of the outdoor heat exchanger or the entrance of the indoor evaporator, institute State the refrigerant outlet of the first plate type heat exchanger entering via battery cooling for reflux branch road and the compressor Mouth connection.
Alternatively, the refrigerant inlet of first plate type heat exchanger via selective on or off institute The outlet of battery cooling branch road and the outdoor heat exchanger is stated, is provided with the battery cooling branch road First expansion valve.
Alternatively, the automotive thermal tube reason system also includes first switch valve, the second throttling branch road warp Connected by the first switch valve with the entrance of the indoor evaporator, the system of first plate type heat exchanger Cryogen entrance cools down the entrance of branch road and the first switch valve via the battery of selective on or off Connection, and it is provided with flow valve on battery cooling branch road.
Alternatively, it is provided with the first check valve on the battery cooling for reflux branch road.
Alternatively, first plate type heat exchanger is connected on the coolant circuit of the battery bag heat-exchange system In, and the first water connected with first plate type heat exchanger is additionally provided with the coolant circuit Pump, deputy tank and battery bag.
Alternatively, the engine-cooling system include the second water pump, engine, indoor heater cores and First triple valve, the outlet of second water pump connect with the entrance of first triple valve, and described first Two of triple valve outlets respectively with the engine coolant entrance of first plate type heat exchanger and described The entrance connection of indoor heater cores, the outlet of the indoor heater cores and first plate type heat exchanger Engine coolant export coolant inlet with the engine and connect, the cooling of the engine Liquid outlet connects with the entrance of second water pump.
Alternatively, the engine-cooling system also includes the first ptc heater and the second triple valve, The indoor heater cores outlet and first plate type heat exchanger engine coolant export with The entrance connection of second triple valve, the first outlet of second triple valve are cold with the engine But liquid entrance connects, and the second outlet of second triple valve connects with the entrance of second water pump, institute State the first ptc heater be arranged on second water pump outlet and first triple valve entrance it Between, or be arranged between the entrance of second water pump and the second outlet of second triple valve.
Alternatively, second switch valve is provided with the described first through-flow branch road, on the first throttle branch road It is provided with the second expansion valve.
Alternatively, the heat pump type air conditioning system also include expansion switch valve, the entrance of the expansion switch valve with The outlet of the indoor condenser, the outlet of the expansion switch valve and the entrance of the outdoor heat exchanger Connection, the first throttle branch road for it is described expansion switch valve throttling runner, the first through-flow branch road For the through-flow runner of the expansion switch valve.
Alternatively, the 3rd switch valve is provided with the described second through-flow branch road, described second throttles on branch road It is provided with the 3rd expansion valve.
Alternatively, the outlet of the indoor evaporator connects via the entrance of the second check valve and the compressor It is logical.
Alternatively, the heat pump type air conditioning system is applied to electric automobile, is also set on the second through-flow branch road The second plate type heat exchanger is equipped with, the motor that second plate type heat exchanger is arranged on the electric automobile simultaneously is cold But in system.
Alternatively, the 3rd switch valve, second plate type heat exchanger are provided with the described second through-flow branch road Refrigerant inlet and the outdoor heat exchanger outlet, the refrigerant of second plate type heat exchanger Outlet connects with the entrance of the 3rd switch valve.
Alternatively, the electromotor cooling system includes connecting to form loop with second plate type heat exchanger Motor, motor radiator and the 3rd water pump.
Alternatively, the heat pump type air conditioning system also includes gas-liquid separator, the outlet of the indoor evaporator Connected with the entrance of the gas-liquid separator, the outlet of the outdoor heat exchanger is via the described second through-flow branch Road connects with the entrance of the gas-liquid separator, and the refrigerant outlet of first plate type heat exchanger is via institute The entrance that battery cooling for reflux branch road is stated with the gas-liquid separator connects, the outlet of the gas-liquid separator Connected with the entrance of the compressor.
Alternatively, the heat pump type air conditioning system also includes the second ptc heater, the 2nd PTC heating Device is used to heat the wind for flowing through the indoor condenser.
Alternatively, second ptc heater is arranged on the windward side or leeward of the indoor condenser Side.
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, except heat pump type air conditioning system can be utilized to realize the in-car summer Its refrigeration and the demand of winter heating, the also function of battery cooling and battery heating.It is board-like by first Heat exchanger, heat exchange can be carried out with battery bag coolant by the refrigerant of heat pump type air conditioning system, to electricity Pond cools, and can carry out heat exchange with battery bag coolant by the coolant of engine again, battery is heated, Using the heat exchange between three kinds of media, effective utilization to the energy under different vehicle conditions is suitable for, makes battery All the time worked within the scope of suitable temperature, so as to improve the efficiency for charge-discharge of battery, endurance and make Use the life-span.In addition, the present invention can both realize air conditioning for automobiles in the case where not changing refrigerant circulation direction The refrigeration of system and heating, it is simple in construction so that whole system pipeline arrangement is simple, is easy to produce in batches.
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 be for providing a further understanding of the present invention, and a part for constitution instruction, with Following embodiment is used to explain the present invention together, but is not construed as limiting the invention. In accompanying drawing:
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 structural representation that system is managed according to the automotive thermal tube of another embodiment of the invention;
Fig. 9 is the structural representation that system is managed according to the automotive thermal tube of another embodiment of the invention;
Figure 10 is the overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides;
Figure 11 be along the cross-sectional view crossed by Figure 10 center lines AB-AB, wherein, the first valve Mouth and the second valve port are in open mode;
Figure 12 is that the expansion switch valve that the preferred embodiment for the present invention provides along visual angle faces knot Structure schematic diagram;
Figure 13 be along the cross-sectional view crossed by Figure 10 center lines AB-AB, wherein, the first valve Mouth is in open mode, and the second valve port is in closure state;
Figure 14 be along the cross-sectional view crossed by Figure 10 center lines AB-AB, wherein, the first valve Mouth is in closure state, and the second valve port is in open mode;
Figure 15 is the facing along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides Structural representation;
Figure 16 be along the cross-sectional view crossed by Figure 15 center lines AC-AC, wherein, the first valve Mouth is in open mode, and the second valve port is in closure state;
Figure 17 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 18 is the partial enlarged drawing in A portions in Figure 17;
Figure 19 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 20 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, and is not limited to this hair It is bright.
In the present invention, in the case where not making opposite explanation, the noun of locality that uses as " it is upper and lower, left, It is right " be typically for the page of accompanying drawing, " upstream, downstream " be relative to medium, Such as, it is downstream towards the flow direction of refrigerant specifically for the flow direction of refrigerant, the back of the body Flow direction from refrigerant is upstream, " inside and outside " refer to corresponding component profile it is interior with it is outer.
In the present invention, electric automobile mainly refers to hybrid vehicle.
Fig. 1 is the structural representation according to the heat pump type air conditioning system of one embodiment of the present invention.Such as figure Shown in 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, HVAC assemblies 600 Indoor condenser 601 and indoor evaporator 602 can be included.Air door mechanism can be used for conducting and lead to room The air channel of interior evaporator 602 and indoor condenser 601.As shown in figure 1, the outlet of compressor 604 with Indoor condenser 601 entrance connection, the egress selection of indoor condenser 601 via first throttle Branch road or the first through-flow branch road connect with the entrance of outdoor heat exchanger 605, the outlet of outdoor heat exchanger 605 Optionally connected via the second throttling branch road with the entrance of indoor evaporator 602 or via the second through-flow branch Road connects with the entrance of compressor 604, and the outlet of indoor evaporator 602 connects with the entrance of compressor 604 It is logical.
In the present invention, or the outlet of indoor condenser 601 is via first throttle branch road and outdoor heat exchange The entrance connection of device 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.For example, in one embodiment, such as Fig. 1 Shown, heat pump type air conditioning system can also include expansion switch valve 603, the entrance of the expansion switch valve 603 With the outlet of indoor condenser 601, outlet and the outdoor heat exchanger 605 of the expansion switch valve 603 Entrance connection, wherein, first throttle branch road for expansion switch valve 603 throttling runner, first is through-flow Branch road is the through-flow runner of expansion switch valve 603.
In the present invention, expansion switch valve is that have expansion valve function (also referred to as electric expansion valve simultaneously Function) and switch valve function (also referred to as magnetic valve function) valve, it is switch that can be regarded as Valve and expansion valve it is integrated.Through-flow runner and throttling runner are internally formed in expansion switch valve, when swollen Swollen switch valve is 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 expansion valve 607 of second switch valve 608 and second, wherein, it is provided with second switch on the first through-flow branch road Valve 608, the second expansion valve 607 is provided with first throttle branch road.Specifically, as shown in Fig. 2 room The outlet of inner condenser 601 is connected with shape via second switch valve 608 with the entrance of outdoor heat exchanger 605 Into the first through-flow branch road, the outlet of indoor condenser 601 is via the second expansion valve 607 and outdoor heat exchanger 605 entrance is connected to form first throttle branch road.When system is under heat pump high-temperature refrigeration circulation pattern When, second switch valve 608 is turned on, and the second expansion valve 607 is closed, the outlet warp of indoor condenser 601 Connected by the first through-flow branch road with the entrance of outdoor heat exchanger 605.Followed when system is in heat pump low-temperature heating When under ring mode, the second expansion valve 607 is turned on, and second switch valve 608 is closed, indoor condenser 601 Outlet connected 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 in heat pump air conditioner provided by the invention Using expansion switch valve 603 in system, i.e. the embodiment shown in Fig. 1.
With the implementation of the first through-flow branch road and first throttle branch road in the embodiment of above-mentioned replacement It is similar, as depicted in figs. 1 and 2, it is provided with the 3rd switch valve 610 on the second through-flow branch road, second The 3rd expansion valve 609 is provided with throttling branch road.Specifically, as shown in figure 3, outdoor heat exchanger 605 Outlet connected via the 3rd switch valve 610 with the entrance of compressor 604 to form the second through-flow branch road, The outlet of outdoor heat exchanger 605 connected via the 3rd expansion valve 609 with the entrance of indoor evaporator 602 with Form the second throttling branch road.When system is under heat pump high-temperature refrigeration circulation pattern, the 3rd expansion valve 609 Conducting, the 3rd switch valve 610 are closed, and the outlet of outdoor heat exchanger 605 is via the second throttling branch road and room The entrance connection of interior evaporator 602.When system is under heat pump low-temperature heating circulation pattern, the 3rd opens Close valve 610 to turn on, the 3rd expansion valve 609 is closed, and the outlet of outdoor heat exchanger 605 is through-flow via second Branch road connects 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 second, Wherein, the outlet of indoor evaporator 602 connects with the entrance of gas-liquid separator 611, gas-liquid separator 611 Outlet connected with the entrance of compressor 604.So, the refrigerant flowed out through indoor evaporator 602 can Gas-liquid separation is carried out to first pass around gas-liquid separator 611, the gas isolated is back to compressor again In 604, compressor 604 is damaged so as to prevent liquid refrigerant from entering compressor 604, so as to To extend the service life of compressor 604, and improve the efficiency of whole heat pump type air conditioning system.Indoor evaporation The outlet of device 602 is connected by the second check valve 615 with the entrance of gas-liquid separator 611.Here, if It is to prevent in heat pump low-temperature heating circulation pattern (described in detail below) to put the second check valve 615 Lower refrigerant is back to indoor evaporator 602, 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, The second plate type heat exchanger 612, second plate type heat exchanger 612 are provided with whole heat pump type air conditioning system It is also disposed in simultaneously in the electromotor cooling system of electric automobile.So, electromotor cooling system can be utilized Waste heat 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 3rd switch valve 610.In Fig. 4 In the embodiment shown, the second plate type heat exchanger 612 is arranged on the upstream of the 3rd 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 The refrigerant outlet 612b of double-plate heat exchanger 612 connects with the entrance of the 3rd switch valve 610.Another (not shown) in a kind of embodiment, the second plate type heat exchanger 612 are arranged on the 3rd switch valve 610 Downstream, i.e. the second refrigerant inlet 612a of plate type heat exchanger 612 and going out for the 3rd switch valve 610 Mouth connection, the refrigerant outlet 612b of the second plate type heat exchanger 612 and the entrance of gas-liquid separator 611 Connection.
At the same time, the second plate type heat exchanger 612 is arranged in electromotor cooling system simultaneously.Such as Fig. 4 institutes Show, electromotor cooling system can include connected with the second plate type heat exchanger 612 with formed the motor in loop, The water pump 614 of motor radiator 613 and the 3rd.So, refrigerant can pass through the second plate type heat exchanger 612 Heat exchange is carried out with the coolant in electromotor cooling system.By the 3rd switch valve 610 and indoor evaporator After 602, from indoor evaporator 602 come out be still low-temp low-pressure gas, now the 3rd switch valve 610 Only flowed through with indoor evaporator 602 as runner.
In heat pump type air conditioning system provided by the invention, R134a, R410a, R32, R290 can be used Etc. various refrigerants, preferentially high temperature refrigerant is selected.
Fig. 5 is the structural representation according to the heat pump type air conditioning system of another embodiment of the present invention.Such as figure Shown in 6, HVAC assemblies 600 can also include the second ptc heater 619, the 2nd PTC heating Device 619 is used to heat the wind for flowing through indoor condenser 601.
In the present invention, the second ptc heater 619 can be high pressure PTC (by vehicle high-tension battery Driving), voltage range:200V-900V.Or second ptc heater 619 can also be low pressure PTC (driving of 12V or 24V batteries), voltage range:9V-32V.In addition, this 2nd PTC adds Hot device 619 can by several or several pieces of PTC-ceramic piece modules and radiating fin form one it is complete Core body, or the strip with radiating fin or bulk PTC-ceramic piece module.
In the present invention, second ptc heater 619 can arrange meeting for condenser 601 indoors Wind side or leeward side.Also, should in order to improve the heating effect of the wind to flowing through indoor condenser 601 Second ptc heater 619 can be arranged in parallel with indoor condenser 601.In other embodiments, Second ptc heater 619 can also be arranged in the casing of HVAC assemblies 600 blow pin air port and At defrosting outlet, it can also be arranged at the air port of defrosting duct.
If by the second ptc heater 619 be arranged in casing interior room inner condenser 601 windward side or Leeward side, be arranged in parallel with indoor condenser 601, can the grooving on casing housing, the 2nd PTC adds Hot device 619, which is inserted perpendicularly into, puts casing into, can also welding support on the side plate of condenser 601 indoors, Two ptc heaters 619 are fixed by screws on the support of indoor condenser 601.If by second Ptc heater 619 is arranged in the blowing at pin air port and defrosting outlet of casing, or is arranged in defrosting duct At air port, it 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, the heating capacity of heat pump low-temperature heating is unsatisfactory for car During interior demand, the auxiliary heating heating of the second ptc heater 619 can be run, it is possible thereby to eliminate heat pump The defects of heating capacity is small during air-conditioning system low-temperature heating, and 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.Such as Shown in Fig. 6, automotive thermal tube reason system can include heat pump type air conditioning system described above, battery bag Heat-exchange system, engine-cooling system and the first plate type heat exchanger 620, wherein, heat pump type air conditioning system and The engine-cooling system is exchanged heat by the first plate type heat exchanger 620 with battery bag heat-exchange system respectively. In the present invention, the first plate type heat exchanger 620 is three ply board formula heat exchanger.It is so-called that " three ply board formula exchanges heat Device " refers to the plate type heat exchanger for being internally formed three heat exchanger channels, wherein, flowed in a heat exchanger channels Dynamic is the refrigerant of heat pump type air conditioning system, and flowing is battery coolant in a heat exchanger channels, one Flowing is engine coolant in heat exchanger channels.
In the present invention, the refrigerant inlet 620a of the first plate type heat exchanger 620 can be via selectivity The outlet of the battery cooling branch road and outdoor heat exchanger 605 of on or off, or led via selectivity Logical or cut-off battery cooling branch road connects with the entrance of indoor evaporator 602.In addition, first board-like changes The refrigerant outlet 620b of hot device 620 connects via the entrance of battery cooling for reflux branch road and compressor 604 It is logical.
In the present invention, add by battery cooling branch road, the first plate type heat exchanger 620 and battery cooling The refrigerant point being used for battery cooling that backflow branch road collectively constitutes and that indoor evaporator 602 is in parallel Branch road is flowed, so, when under heat pump high-temperature refrigeration power-up pond cooling circulation pattern, 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 pass through the first plate type heat exchanger 620 and the coolant in the battery coolant circuit of battery bag heat-exchange system Exchanged heat, absorb the heat of coolant, and then the cooling to battery bag 622 can be realized.
In the present invention, the refrigerant inlet 620a of the first plate type heat exchanger 620 connected mode has two Kind:In one embodiment, as shown in fig. 6, the refrigerant inlet 620a of the first plate type heat exchanger 620 The outlet of branch road and outdoor heat exchanger 605 can be cooled down via the battery of selective on or off. Specifically, the first expansion valve 621 can be set on battery cooling branch road.So, can be according to reality Demand is board-like to control refrigerant whether can flow into first by opening or closing the first expansion valve 621 The refrigerant inlet 620a of heat exchanger 620.That is, it is in the conduction state to control battery cooling branch road, is gone back It is to be in cut-off state.
In this embodiment, under heat pump high-temperature refrigeration power-up pond cooling circulation pattern, changed from outdoor The refrigerant for the medium temperature high pressure that hot device 605 comes out directly is 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 be after shunting again on every branch road The decrease temperature and pressure that throttles is carried out respectively.
In another embodiment, as shown in fig. 7, automotive thermal tube reason system also includes first switch valve 626, the second throttling branch road connects via first switch valve 626 with the entrance of indoor evaporator 602.Tool Body, in the embodiment shown in figure, the outlet of the 3rd expansion valve 609 is via first switch valve 626 Connected with the entrance of indoor evaporator 602.The refrigerant inlet 620a warps of first plate type heat exchanger 620 Connected by the battery cooling branch road of selective on or off with the entrance of first switch valve 626, and Flow valve 627 is provided with battery cooling branch road.
So, by controlling flow valve 627 refrigerant can be controlled whether can to flow into first board-like The refrigerant inlet of heat exchanger 620, i.e. control battery cooling branch road is in the conduction state, or place In cut-off state.In addition, control flow valve 627 can also be according to being actually needed regulation and control refrigerant inflow the The size of the flow of one plate type heat exchanger 620.
In this embodiment, under heat pump high-temperature refrigeration power-up pond cooling circulation pattern, changed from outdoor The refrigerant for the medium temperature high pressure that hot device 605 comes out is divided into two strands after the throttling of the 3rd expansion valve 609: One flows to first switch valve 626, another plume to flow valve 627, wherein, flow valve 627 can be with Realize the function of the distribution of the flow proportional of two strands of refrigerants.Now, refrigerant is first to be carried out on main line Then throttling decrease temperature and pressure is 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 In formula heat exchanger 620, the first check valve 628 is provided with battery cooling for reflux branch road.That is, first Check valve 628 can only uniaxially allow refrigerant from the refrigerant outlet 620b of the first plate type heat exchanger 620 The entrance of compressor 604 is flowed to, and can not be flowed round about.
In addition, as shown in Figure 6 and Figure 7, the first plate type heat exchanger 620 is connected on battery bag heat-exchange system Coolant circuit in, and be additionally provided with what is connected with the first plate type heat exchanger 620 in coolant circuit First water pump 624, deputy tank 625 and battery bag 622.
Wherein, battery coolant can be via the battery coolant inlet 620f of the first plate type heat exchanger 620 The first plate type heat exchanger 620 is flowed into, and via the battery cooling liquid outlet of the first plate type heat exchanger 620 620e flows out the first plate type heat exchanger 620.When battery cooling branch road conducting, the system of heat pump type air conditioning system Cryogen can flow into the first plate type heat exchanger via the refrigerant inlet 620a of the first plate type heat exchanger 620 620, and flow out the first plate type heat exchanger via the refrigerant outlet 620b of the first plate type heat exchanger 620 620.So, the first plate type heat exchanger 620 is passed through, it is possible to achieve refrigerant and the heat friendship of battery coolant Change, so as to be cooled down for battery bag.
As above, to prevent liquid refrigerant enters compressor 604 from damaging compressor 604, so as to To extend the service life of compressor 604, and the efficiency of whole heat pump type air conditioning system is improved, it is empty in heat pump Gas-liquid separator 611 is provided with adjusting system.As shown in Figure 6 and Figure 7, gas-liquid separator 611 enters In addition to mouth connects except the outlet with indoor evaporator 602 and the 3rd switch valve 610, the first plate-type heat-exchange The refrigerant outlet 620b of device 620 is via battery cooling for reflux branch road and the entrance of gas-liquid separator 611 Connection.In other words, the liquid refrigerant come out from the first plate type heat exchanger 620 can also first pass around gas Liquid/gas separator 611 carries out gas-liquid separation, and the gas isolated is back in compressor 604 again, so as to anti- Only liquid refrigerant enters compressor 604 and damages compressor 604.
In addition, as shown in Figure 6 and Figure 7, engine-cooling system can include the second water pump 641, hair Motivation 642, indoor heater cores 643 (being arranged in HVAC 600) and the first triple valve 644, its In, the outlet of the second water pump 641 connects with the entrance 644a of the first triple valve 644, the first triple valve Two of 644 outlets (that is, second outlet 644c and first outlet 644b) respectively with indoor warm wind core The engine coolant entrance 620c of the entrance of body 643 and the first plate type heat exchanger 620 is connected, indoor Heater cores 643 outlet and the first plate type heat exchanger 620 engine coolant export 620d with The coolant inlet connection of engine 642, the cooling liquid outlet of engine 642 and the second water pump 641 Entrance connects.
When opening the second water pump 641, the entrance 644a and the first triple valve of the first triple valve 644 are turned on During 644 first outlet 644b, engine coolant can start via the first plate type heat exchanger 620 Machine coolant inlet 620c flows into the first plate type heat exchanger 620, and via the first plate type heat exchanger 620 Engine coolant outlet 620d flow out the first plate type heat exchanger 620.So, engine can be utilized 642 waste heat is that battery bag is heated.Further, it is also possible to by turning on entering for the first triple valve 644 Mouth 644a and the first triple valve 644 second outlet 644c so that engine coolant flows into indoor warm Wind core body 643, heated so as to realize using engine exhaust heat to be in-car.
In order to prevent engine 642 from the situation of waste heat deficiency occur, in another embodiment of the present invention, As shown in figure 8, engine-cooling system can also include the first ptc heater 645 and the second threeway Valve 646, wherein, the outlet of indoor heater cores 643 and the engine of the first plate type heat exchanger 620 are cold But entrance 646as of the liquid outlet 620d with second triple valve 646 is connected, second triple valve 646 first outlet 646b connects with the coolant inlet of the engine 642, second triple valve 646 second outlet 646c connects with the entrance of second water pump 641, the first PTC heating Device 645 can be arranged on the outlet and the described 1st of second water pump 641 as shown in Figure 8 Between the entrance 644a of port valve 644, or second water can be arranged on as shown in Figure 9 Between the second outlet 646c of the entrance of pump 641 and second triple valve 646, so that and engine 642 is in parallel.Thus, by the first ptc heater 645, the temperature of engine coolant can be improved, And then preferably heated for battery bag.
Heat pump type air conditioning system provided by the invention will be described in detail in different work by taking Fig. 8 as an example below Cyclic process and principle under pattern.It should be appreciated that other embodiment is (for example, shown in Fig. 9 Embodiment) under system circulation process and principle to Fig. 8 be similar, just no longer go to live in the household of one's in-laws on getting married one by one herein State.
Pattern one:Heat pump high-temperature refrigeration circulation pattern.System in this mode when, whole system shape Into a high-temperature refrigeration circulatory system.As shown in figure 8, first, compressor 604 is discharged high through overcompression The gas of warm high pressure, it is connected with indoor condenser 601.Now, by air door mechanism control wind without Indoor condenser 601, due to calm process, therefore, hot friendship will not be carried out in condenser 601 indoors Change, the indoor condenser 601 only uses as runner, is still from what indoor condenser 601 came out now The gas of HTHP.The indoor outlet of condenser 601 is connected with expansion switch valve 603, now expands Close valve 603 and play switch valve action, only flowed through as runner, now come out still from expansion switch valve 603 For the gas of HTHP.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, outdoor heat exchange Device 605 is exchanged heat with outdoor air, and heat is dispersed into air, is from what outdoor heat exchanger 605 came out The liquid of medium temperature high pressure.Now, the 3rd switch valve 610 is closed, and the first expansion valve 621 is closed, outdoor The outlet of heat exchanger 605 is connected with the 3rd expansion valve 609, and the 3rd expansion valve 609 plays as restricting element Throttling action, its out for low temperature and low pressure liquid.The aperture of 3rd expansion valve 609 can be according to actual need Ask and give certain aperture, this aperture can be according to installed in the outlet of indoor evaporator 602 and gas-liquid point Pressure and temperature gathered data from the pressure-temperature sensor between the entrance of device 611 calculates indoor steaming Hair device 602 exports refrigerant superheat degree to adjust.3rd expansion valve 609 exports and indoor evaporator 602 Entrance be connected, low temperature and low pressure liquid is evaporated in evaporator 602 indoors so that from indoor evaporation The gas for low-temp low-pressure that device 602 comes out.The outlet of indoor evaporator 602 and the second check valve 615 Entrance be connected, the outlet of the second check valve 615 is connected with the entrance of gas-liquid separator 611, not steaming The liquid distributed is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to compressor 604 In, it is consequently formed a circulation.Now HVAC assemblies 600 apoplexy flows only through indoor evaporator 602, Indoor 601 calm process of condenser, only flows through as refrigerant flow path.Also, in this mode, One water pump 624 is closed, and the second water pump 641 is closed, and the first triple valve 644 and the second triple valve 646 are disconnected Electricity, i.e. close.
Pattern two:Battery cools down circulation pattern.System in this mode when, battery bag heat-exchange system Form a battery bag cooling recirculation system.As shown in figure 8, compressor 604 discharges high temperature through overcompression The gas of high pressure, it is connected with indoor condenser 601.Now, wind is controlled without room by air door mechanism Inner condenser 601, due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, The indoor condenser 601 only uses as runner, and it is still HTHP that now indoor condenser 601, which exports, Gas.The indoor outlet of condenser 601 is connected with expansion switch valve 603, now expands switch valve 603 Switch valve action is played, is only flowed through as runner, switch valve 603 is now expanded and exports still as HTHP Gas.The outlet of expansion switch valve 603 is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and outdoor Air heat-exchange, heat is dispersed into air, the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure. Now, the 3rd switch valve 610 is closed, and the 3rd expansion valve 609 is closed, outdoor heat exchanger 605 outlet with First expansion valve 621 is connected, and the first expansion valve 621 plays throttling action as restricting element, and it is exported For low temperature and low pressure liquid.The aperture of first expansion valve 621 can give certain aperture according to the actual requirements, This aperture can be according to the entrance installed in the outlet of the first plate type heat exchanger 620 and gas-liquid separator 611 Between the pressure and temperature gathered data of pressure-temperature sensor calculate refrigerant superheat degree and adjust. The outlet of first expansion valve 621 is connected with the refrigerant inlet of the first plate type heat exchanger 620, low-temp low-pressure liquid Body is exchanged heat in the first plate type heat exchanger 620 with the hot water come out from battery bag 622 so that first The refrigerant outlet of plate type heat exchanger 620 is the gas of low-temp low-pressure.The system of first plate type heat exchanger 620 Cryogen outlet is connected with the entrance of the first check valve 628, the outlet and gas-liquid separation of the first check valve 628 The entrance of device 611 is connected, and the liquid not being evaporated is separated by gas-liquid separator 611, last low temperature The gas of low pressure is returned in compressor 604, is consequently formed a circulation.Now HVAC assemblies 600 The flow direction of apoplexy flows only through indoor evaporator 602, indoor 601 calm process of condenser, only as refrigeration Agent runner flows through.Also, in this mode, the first water pump 624 is opened, the second water pump 641 is closed, First triple valve 644 and the second triple valve 646 power off.
Pattern three:Heat pump high-temperature refrigeration power-up pond cooling circulation pattern.System in this mode when, Whole system forms high-temperature refrigeration battery cooling recirculation system simultaneously.As shown in figure 8, first, pressure Contracting machine 604 discharges the gas of HTHP through overcompression, is connected with indoor condenser 601.Now, lead to Cross air door mechanism and control wind without indoor condenser 601, it is therefore, cold indoors due to calm process Heat exchange will not be carried out in condenser 601, the indoor condenser 601 only uses as runner, now indoor Condenser 601 is exported still as the gas of HTHP.The indoor outlet of condenser 601 and expansion switch valve 603 It is connected, now expands switch valve 603 and play switch valve action, only flowed through as runner, now expansion switch Valve 603 is exported still as the gas of HTHP.Expand the outlet of switch valve 603 and the phase of outdoor heat exchanger 605 Even, outdoor heat exchanger 605 exchanges heat with outdoor air, heat is dispersed into air, outdoor heat exchanger 605 Export as the liquid of medium temperature high pressure.Now, the 3rd switch valve 610 is closed, the first expansion valve 621 and Three expansion valves 609 are opened, and outdoor heat exchanger 605 exports to be expanded with the 3rd expansion valve 609 and first respectively Valve 621 is connected.Now, the liquid of the medium temperature high pressure come out from outdoor heat exchanger 605 is divided into two strands:One For plume to the entrance of the 3rd expansion valve 609, the 3rd expansion valve 609 plays throttling action as restricting element, Its outlet is low temperature and low pressure liquid.The aperture of 3rd expansion valve 609 can be given certain according to the actual requirements Aperture, this aperture can be according to entering installed in the outlet of indoor evaporator 602 and gas-liquid separator 611 The pressure and temperature gathered data of pressure-temperature sensor between mouthful calculates indoor evaporator 602 and exported Refrigerant superheat degree is adjusted.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 low The gas of warm low pressure, the outlet of indoor evaporator 602 are connected with the entrance of the second check valve 615.It is another To the entrance of the first expansion valve 621, the aperture of the first expansion valve 621 can give plume according to the actual requirements Certain aperture is given, this aperture can be according to the refrigerant outlet and gas-liquid point of the first plate type heat exchanger 620 Pressure and temperature gathered data from the pressure-temperature sensor between the entrance of device 611 calculates refrigerant The degree of superheat is adjusted.First expansion valve 621 plays throttling action as restricting element, and its outlet is low temperature 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 hot friendship Change so that the refrigerant outlet of the first plate type heat exchanger 620 is the gas of low-temp low-pressure, and first board-like changes The refrigerant outlet of hot device 620 is connected with the first check valve 628.The outlet of second check valve 615 and The outlet of one check valve 628 is connected with gas-liquid separator 611 respectively, from the outlet of the first check valve 628 Refrigerant of the refrigerant out with the outlet from the first check valve 628 out converges, what is be not evaporated Liquid is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, by This forms 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, only flows through as refrigerant flow path.Also, in this mode, One water pump 624 is opened, and the second water pump 641 is closed, and the first triple valve 644 and the second triple valve 646 are disconnected Electricity.
Pattern four:Heat pump low-temperature heating circulation pattern.System in this mode when, whole system shape Into a low-temperature heating circulatory system.As shown in figure 8, first, compressor 604 is discharged high through overcompression The gas of warm high pressure, 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 Close valve 603 and play expansion valve, play throttling action as restricting element, its outlet is low-temp low-pressure Liquid.Wherein, the aperture for expanding switch valve 603 can give certain aperture according to the actual requirements, This aperture can be according to the temperature acquisition of the pressure-temperature sensor installed in the exit of compressor 604 The numbers of data (i.e. compressor exhaust temperature) is adjusted.Expansion switch valve 603 exports and outdoor heat exchange The entrance of device 605 is connected, and outdoor heat exchanger 605 absorbs the heat of outdoor air, outdoor heat exchanger 605 Export the gas for low-temp low-pressure.Now, the 3rd switch valve 610 is opened, and the 3rd expansion valve 609 is closed, First expansion valve 621 is closed, and refrigerant is directly entered gas-liquid separator 611 without indoor evaporator 602 In, the liquid not being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to pressure In contracting machine 604, a circulation is consequently formed.Also, in this mode, the first water pump 624 is closed, Second water pump 641 is closed, and the first triple valve 644 and the second triple valve 646 power off.
Pattern five:Engine low temperature heats circulation pattern.As shown in figure 8, come out from engine 642 High temperature coolant enters by the second water pump 641, the first ptc heater 645, first triple valve 644 Mouth 644a, second outlet 644c, then carry out heat exchange cooling by indoor heater cores 643 and air For the coolant of low temperature, then it is back to by the entrance 646a- second outlets 646b of the second triple valve 646 In engine 642, a circulation is thus completed.In this mode, compressor 604, expansion switch valve 603rd, the 3rd expansion valve 609, the first expansion valve 621 are closed all in off-position, the first water pump 624, Second water pump 641 is run, and the entrance 644a- second outlets 644c of the first triple valve 644 leads to, entrance 644a- First outlet 644b is obstructed, and the entrance -646a first outlets 646b of the second triple valve 646 leads to, entrance 646a- second outlets 646c is obstructed.
Pattern six:PTC mode battery heat cycles patterns.As shown in figure 8, heated from the first PTC The high temperature coolant that device 645 comes out passes through entrance 644a, the first outlet 644b of the first triple valve 644, The first plate type heat exchanger 620 is flowed to, it is low temperature to carry out heat exchange cooling with the cold water that battery bag 622 comes out Coolant, then entrance 646a- second outlet 646c by the second triple valve 646, by the second water Pump 641 is back to the first ptc heater 645, thus completes a circulation.Pass through the first plate-type heat-exchange Device 620, it can be that battery bag is heated using engine coolant, raise the temperature of battery bag. Under the pattern, compressor 604, expansion switch valve 603, the 3rd expansion valve 609, the first expansion valve 621 All in off-position, the first water pump 624 is run, and the second water pump 641 is run, the first triple valve 644 Entrance 644a- first outlets 644b lead to, entrance 644a- second outlets 644c is obstructed, the second triple valve 646 entrance 646a- second outlets 646c leads to, and entrance 646a- first outlets 646b is obstructed.
Pattern seven:Engine mode battery heat cycles pattern.As shown in figure 8, go out from engine 642 The high temperature coolant come is by the second water pump 641, the entrance 644a- first outlets of the first triple valve 644 644b, the first plate type heat exchanger 620 is flowed to, heat exchange cooling is carried out with the cold water that battery bag 622 comes out For the coolant of low temperature, then it flow back into by the entrance 646a- first outlets 646b of the second triple valve 646 In engine 642, thus complete engine mode battery and heat a circulation.In this mode, compress Machine 604, expansion switch valve 603, the 3rd expansion valve 606, the first expansion valve 621 all in off-position, First water pump 624 is run, and the second water pump 646 is run, the entrance 644a- first of the first triple valve 644 Outlet 644b leads to, and entrance 644a- second outlets 644c is obstructed, the entrance 646a- of the second triple valve 646 First outlet 646b leads to, and entrance 646a- second outlets 646c is obstructed.
Pattern eight:PTC mode low temperatures heating power-up pond heat cycles pattern.As shown in figure 8, from first The high temperature coolant that ptc heater 645 comes out flows to the first triple valve 644, in the first triple valve 644 Punishment stream, board-like is changed by the entrance 644a- first outlets 644b to first of the first triple valve 644 all the way Hot device 620, coolant of the heat exchange cooling for low temperature is carried out with the cold water that battery bag 622 comes out, it is another Road by the first triple valve 644 entrance 644a- second outlets 644c to indoor heater cores 643 with sky Gas carries out coolant of the heat exchange cooling for low temperature, from the engine coolant of the first plate type heat exchanger 620 The refrigerant that outlet 620d and indoor heater cores 643 flow out flows back to the second triple valve 646 together again, then From the entrance 646a- second outlets 646c of the second triple valve 646 first is flow back into by the second water pump 641 Ptc heater 645, thus complete a PTC mode low temperatures heating power-up pond heat cycles.In the mould Under formula, compressor 604, expansion switch valve 603, the 3rd expansion valve 609, the first expansion valve 621 are all located In off-position, the first water pump 624 is run, and the second water pump 641 is run, and the first triple valve 644 enters Mouth 644a- first outlets 644b leads to, and entrance 644a- second outlets 644c leads to, the second triple valve 646 Entrance 646a- first outlets 646b is obstructed, and entrance 646a- second outlets 646c leads to.
Pattern nine:Engine mode low-temperature heating powers up pond heat cycles pattern.As shown in figure 8, from hair The high temperature coolant that motivation 642 comes out punishes stream by the second water pump 641, in the first triple valve 644, All the way by the entrance 644a- first outlets 644b of the first triple valve 644 to the first plate type heat exchanger 620, Coolant of the heat exchange cooling for low temperature is carried out with the cold water that battery bag 622 comes out, another way passes through first The entrance 644a- second outlets 644c of triple valve 644 carries out hot friendship to indoor heater cores 643 and air Coolant of the cooling for low temperature is changed, 620d is exported from the engine coolant of the first plate type heat exchanger 620 The second triple valve 646 is flowed back to together again with the refrigerant of indoor heater cores 643 outflow, then from the two or three The entrance 646a- first outlets 646b of port valve 646 is flow back into engine 642, thus completes a hair Motivation mode low temperature heating power-up pond heat cycles.In this mode, compressor 604, expansion switch valve 603rd, the 3rd expansion valve 609, the first expansion valve 621 are run all in off-position, the first water pump 624, Second water pump 646 is run, and the entrance 644a- first outlets 644b of the first triple valve 644 leads to, entrance 644a- Second outlet 644c leads to, and the entrance 646a- first outlets 646b of the second triple valve 646 leads to, entrance 646a- Second outlet 646c is obstructed.
To sum up, automotive thermal tube reason system provided by the invention, except that heat pump type air conditioning system can be utilized to realize In-car cooling in summer and the demand of winter heating, the also function of battery cooling and battery heating.Pass through One plate type heat exchanger, hot friendship can be carried out with battery bag coolant by the refrigerant of heat pump type air conditioning system Change, battery is cooled, heat exchange can be carried out with battery bag coolant by the coolant of engine again, it is right Battery heats, and using the heat exchange between three kinds of media, is suitable under different vehicle conditions to effective profit of the energy With making battery be worked all the time within the scope of suitable temperature, so as to improve the efficiency for charge-discharge of battery, continuous Boat ability and service life.In addition, the present invention both can be real in the case where not changing refrigerant circulation direction The refrigeration of existing automotive air-conditioning system and heating, it is simple in construction so that whole system pipeline arrangement is simple, easily In batch production.
As described above, in the present invention, expansion switch valve is that have expansion valve function and switch valve work(simultaneously Can valve, it is the integrated of switch valve and expansion valve that can be regarded as.It will be provided below a kind of swollen The example embodiment of swollen switch valve.
As shown in Figure 10, expansion switch valve mentioned above can include valve body 500, wherein, the valve body On 500 formed with import 501, outlet 502 and connection import 501 and outlet 502 between in Portion's runner, the first valve element 503 and the second valve element 504 are installed on inner flow passage, the first valve element 503 makes Obtain import 501 directly to connect with outlet 502 or disconnect connection, the second valve element 504 causes the He of import 501 Outlet 502 is connected by restriction 505 or disconnects connection.
Wherein, " the directly connection " that the first valve element is realized refers to enter from the import 501 of valve body 500 Cooling agent can cross the first valve element and valve body 500 is insusceptibly flowed directly to by inner flow passage Outlet 502, " the disconnecting connection " that the first valve element is realized refer to enter from the import 501 of valve body 500 Cooling agent 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 from the cold of the entrance of import 501 of valve body 500 But the outlet 502 of valve body 500 is flowed to after the throttling that agent can cross the second valve element and pass through restriction, and " disconnect connection " that second valve element is realized refer to from the cooling agent of the entrance of import 501 of valve body 500 without Method crosses the second valve element and the outlet 502 of valve body 500 can not be flowed to by restriction 505.
So, can be made by the control to the first valve element and the second valve element, expansion switch valve of the invention Obtain the cooling agent entered from import 501 and at least realize three kinds of states.That is, 1) cut-off state;2) cross The direct connected state of first valve element 503;And 3) cross the throttling mode of communicating of the second valve element 504.
Wherein, the liquid refrigerant of HTHP can turn into low temperature again after the throttling of restriction 505 The vaporific hydraulic pressure refrigerant of low pressure, can be that the evaporation of refrigerant create conditions, i.e. restriction 505 Cross-sectional area is less than the cross-sectional area of outlet 504, and by controlling the second valve element, restriction 505 Aperture size can be adjusted, and with flow of the controlling stream through restriction 505, be prevented because of the very few generation of refrigerant Refrigeration deficiency, and prevent from causing compressor generation liquid hit phenomenon because refrigerant is excessive.That is, second The cooperation of 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 on the inner flow passage of same valve body 500 504, it is simple in construction to realize the break-make control of import 501 and outlet 502 and/or throttling control function, It is readily produced and installs, and when expansion switch valve provided by the invention is applied to heat pump, can subtracts The refrigerant charge of few whole heat pump, reduces cost, simplifies pipeline connection, more conducively heat pump system The oil return of system.
As a kind of exemplary inner mounting structure of valve body 500, as shown in Figure 10 to Figure 15, valve Body 500 includes forming the valve seat 510 of inner flow passage and the first valve casing 511 on the valve seat 510 With the second valve casing 512, the first electromagnetism for driving the first valve element 503 is installed in first valve casing 511 Drive division 521, the second electromagnetic drive for driving the second valve element 504 is installed in second valve casing 512 Portion 522, the inner flow passage that the first valve element 503 is extended in valve seat 510 from the first valve casing 511, second The inner flow passage that 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, power on/off control energy Enough positions for easily controlling the first valve element 503, and then control import 501 directly to be connected with outlet 502 Or disconnect connection;By to the second electromagnetic drive part 522, e.g., magnet coil, power on/off control The position of the second valve element 504 can easily be controlled, so as to control import 501 and outlet 502 whether with Restriction 505 connects.In other words, shared import 501 and outlet 502 have been installed in parallel in valve body 500 Electric expansion valve and magnetic valve, it is thus possible to realize expansion switch valve break-make and/or throttling automation Control, and simplify pipeline trend.
To make full use of the locus of all directions of expansion switch valve, avoid expanding switch valve and difference Pipeline connection produces interference, and valve seat 510 is formed as polyhedral structure, the first valve casing 511, the second valve casing 512nd, 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, import 501 and outlet 502 Opening direction is mutually perpendicular to.So, import, export pipeline can be connected to the difference of polyhedral structure On surface, it can avoid that pipeline arrangement is in disorder, the problem of tangling.
As a kind of typical internal structure of expansion switch valve, as shown in Figure 10 to Figure 13, inside stream Road includes first flow 506 and the second flow channel 507 connected respectively with import 501, first flow 506 On formed formed with the first valve port 516 coordinated with the first valve element 503, restriction 505 in second flow channel On 507 be formed as with the second valve element 504 coordinate the second valve port 517, first flow 506 and second Runner 507 is intersected in the downstream of the second valve port 517 and connected with outlet 502.
That is, 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, by converting the second valve Blocking or turning on to the second valve port 517 is realized in the position of core 504, so as to realize electronic expansion The throttling function of valve.
First flow 506 and second flow channel 507 can be respectively communicated with import with any appropriate arrangement 501 and outlet 502, for reduce valve body 500 overall space-consuming, as shown in figure 14, second flow channel 507 open up in the same direction with outlet 502, and first flow 506 is formed as orthogonal with second flow channel 507 First through hole 526, import 501 by the second through hole 527 for being opened in the side wall of second flow channel 507 with Second flow channel 507 is connected, and the through hole 527 of first through hole 526 and second is respectively communicated with import 501.Its In, first through hole 526 can be set or be arranged in parallel in spatial vertical with the second through hole 527, this hair It is bright that this is not restricted, belong among protection scope of the present invention.
For the further overall space-consuming for simplifying valve body 500, as shown in Figure 17 to Figure 18, import 501 It is opened in mutual vertically on valve body 500 with outlet 502.So, as shown in Figure 15 to Figure 17, enter The axis of mouth 501, the axis (i.e. the axis of second flow channel 507) for exporting 502, and first flow 506 Axis it is vertically arranged two-by-two in space, so as to prevent the shifting of the first valve element 503 and the second valve element 504 Movable property life interference, and can maximumlly utilize the inner space of valve body 500.
As shown in Figure 13 and Figure 14, for ease of realizing the closing of the first valve port 516 and opening, the first valve Core 503 is along moving direction with the coaxial laying of the first valve port 516 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 and Two valve ports 517 are coaxially laid selectively to block or depart from the second valve port 517.
Wherein, as shown in figure 16, first flow 506 is blocked for the first valve element 503 of guarantee reliable Property, the first valve element 503 can include the first valve rod 513 and be connected to the of the end of the first valve rod 513 One plug 523, first plug 523 are used to be sealed against on the end face of the first valve port 516 to block First flow 506.
The aperture size of the restriction 505 of switch valve is expanded for ease of regulation, as shown in Figure 13 and Figure 14, Second valve element 504 includes the second valve rod 514, and the end of second valve rod 514 is formed as taper header structure, Second valve port 517 is formed as the taper pore structure being engaged with the taper header structure.
Wherein, the aperture of restriction 505 for expanding switch valve can moving up and down by the second valve element 504 To adjust, 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 13, the second valve element 504 is in Extreme lower position, the second valve element 504 block the second valve port 517, refrigerant completely can not by restriction 505, That is the second valve port 517;If expansion switch valve restriction 505 has aperture, as shown in figure 14, the second valve There is space between the taper header structure and restriction 505 of the end of core 504, flowed again after refrigerant throttling To outlet 502.If desired, can be by controlling the second electromagnetism during the throttle opening of increase expansion switch valve Drive division 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;On the contrary, when the restriction 505 for needing reduction expansion switch valve Aperture when, can drive under the phase of the second valve element 504 mobile.
In use, when only needing to use the magnetic valve function of expansion switch valve, such as Figure 13, Tu16He Shown in Figure 19, the first valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, Second valve element 504 is in extreme lower position, and the second valve element 504 blocks throttle orifice 505, from import 501 The first valve port can not can only be passed sequentially through by throttle orifice 505 completely by flowing into the refrigerant of inner flow passage 516th, first through hole 526 is flowed into outlet 502.When magnetic valve powers off, the first valve element 503 is to the left Mobile, the first plug 523 and the first valve port 516 separate, and refrigerant can lead to from first through hole 526 Cross;Work as solenoid valves, the first valve element 503 moves right, the first plug 523 and the first valve port 516 Fitting, refrigerant can not pass through from first through hole 526.
It should be noted that the dotted line with the arrow in Figure 13 and Figure 15 represents refrigerant using electromagnetism Flow route and trend during valve function.
When only needing to use the electric expansion valve function of expansion switch valve, as shown in Figure 14 and Figure 20, Second valve port 517, i.e. restriction 505 are in open mode, and the first valve element 503 blocks the first valve port 516, The refrigerant of inner flow passage is flowed into from import 501 can only be passed sequentially through by first through hole 526 Second through hole 527, restriction 505 are flowed into outlet 502, and can move up and down the second valve element 504 adjust the size of the aperture of restriction 505.
It should be noted that the dotted line with the arrow in Figure 14 and Figure 20 represents refrigerant using electronics Flow route and trend during expansion valve function.
When needing simultaneously using the magnetic valve function and electric expansion valve function that expand switch valve, such as scheme 11st, shown in Figure 17 and Figure 18, wherein, dotted line with the arrow represents the glide path of refrigerant and walked To the first valve element 503 departs from the first valve port 516, and the first valve port 516 is in open mode, restriction 505 are in open mode, and the refrigerant for flowing into inner flow passage can be respectively along first flow 506 and Two runners 507 flow direction 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 And be not intended to limit the invention, other have the expansion of expansion valve function and switch valve function switch simultaneously Valve is equally applicable to the present invention.
The present invention also provides a kind of electric automobile, including according to above-mentioned heat pump air conditioner system provided by the invention System.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, it is still, of the invention and unlimited Detail in above-mentioned embodiment, can be to the present invention in the range of the technology design of the present invention Technical scheme carry out a variety of simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special Sign, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not The repetition wanted, the present invention no longer separately illustrate to various combinations of possible ways.
In addition, various embodiments of the present invention can be combined randomly, as long as its Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.

Claims (18)

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, engine-cooling system and the first plate type heat exchanger (620), institute Heat pump type air conditioning system and the engine-cooling system are stated respectively by first plate type heat exchanger (620) Exchanged heat with the battery bag heat-exchange system, the heat pump type air conditioning system is cold including compressor (604), interior Condenser (601), indoor evaporator (602) and outdoor heat exchanger (605), the compressor (604) Outlet connected with the entrance of the indoor condenser (601), indoor condenser (601) go out Mouth is optionally via first throttle branch road or the first through-flow branch road and the outdoor heat exchanger (605) Entrance connect, the egress selection of the outdoor heat exchanger (605) via the second through-flow branch road and institute State the entrance connection of compressor (604) or via the second throttling branch road and the indoor evaporator (602) Entrance connection, the outlet of the indoor evaporator (602) and the entrance of the compressor (604) connect It is logical, the refrigerant inlet (620a) of first plate type heat exchanger (620) via selectivity conducting or Outlet or the indoor evaporator of the battery cooling branch road of cut-off with the outdoor heat exchanger (605) (602) entrance connection, refrigerant outlet (620b) warp of first plate type heat exchanger (620) Connected by battery cooling for reflux branch road with the entrance of the compressor (604).
2. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet (620a) of formula heat exchanger (620) via selective on or off the battery The outlet of branch road and the outdoor heat exchanger (605) is cooled down, is set on the battery cooling branch road There is the first expansion valve (621).
3. automotive thermal tube according to claim 1 manages system, it is characterised in that the automobile heat Management system also includes first switch valve (626), and the second throttling branch road is via the first switch valve (626) entrance with the indoor evaporator (602) connects, first plate type heat exchanger (620) Refrigerant inlet (620a) via selective on or off battery cooling branch road opened with described first The entrance connection of valve (626) is closed, and flow valve (627) is provided with battery cooling branch road.
4. 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.
5. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate Formula heat exchanger (620) is connected in the coolant circuit of the battery bag heat-exchange system, and described cold But be additionally provided with liquid loop connected with first plate type heat exchanger (620) the first water pump (624), Deputy tank (625) and battery bag (622).
6. automotive thermal tube according to claim 1 manages system, it is characterised in that the engine Cooling system includes the second water pump (641), engine (642), indoor heater cores (643) and the One triple valve (644), the outlet of second water pump (641) and first triple valve (644) Entrance (644a) connects, two outlets (644b, 644c) point of first triple valve (644) Not the engine coolant entrance (620c) with first plate type heat exchanger (620) and the interior The entrance connection of heater cores (643), the outlet and described first of the indoor heater cores (643) Plate type heat exchanger (620) engine coolant outlet (620d) with the engine (642) Coolant inlet connects, the cooling liquid outlet of the engine (642) and second water pump (641) Entrance connection.
7. automotive thermal tube according to claim 6 manages system, it is characterised in that the engine Cooling system also includes the first ptc heater (645) and the second triple valve (646), described indoor warm The engine coolant of the outlet of wind core body (643) and first plate type heat exchanger (620) exports The entrance (646a) of (620d) with second triple valve (646) connects, second threeway The first outlet (646b) of valve (646) connects with the coolant inlet of the engine (642), institute The second outlet (646c) of the second triple valve (646) is stated with the entrance of second water pump (641) to connect Logical, first ptc heater (645) is arranged on outlet and the institute of second water pump (641) Between the entrance (644a) for stating the first triple valve (644), or it is arranged on second water pump (641) Entrance and second triple valve (646) second outlet (646c) between.
8. automotive thermal tube according to claim 1 manages system, it is characterised in that described first is logical Second switch valve (608) is provided with stream branch road, the second expansion valve is provided with the first throttle branch road (607)。
9. 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).
10. automotive thermal tube according to claim 1 manages system, it is characterised in that described second is logical The 3rd switch valve (610) is provided with stream branch road, the 3rd expansion valve is provided with the second throttling branch road (609)。
11. 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 second check valve (615) and the compressor (604) It is logical.
12. 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.
13. automotive thermal tube according to claim 12 manages system, it is characterised in that described second The 3rd 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 3rd switch valve (610).
14. automotive thermal tube according to claim 12 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 3rd water pump (614).
15. 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 (620b) via the battery cooling for reflux branch road and the gas-liquid separator (611) Entrance connection, the outlet of the gas-liquid separator (611) and the entrance of the compressor (604) connect It is logical.
16. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes the second ptc heater (619), and second ptc heater (619) is used to heat Flow through the wind of the indoor condenser (601).
17. automotive thermal tube according to claim 16 manages system, it is characterised in that described second Ptc heater (619) is arranged on the windward side or leeward side of the indoor condenser (601).
18. a kind of electric automobile, it is characterised in that including according to any one in claim 1-17 Described automotive thermal tube reason system.
CN201610309706.5A 2016-05-10 2016-05-10 Automotive thermal tube manages system and electric car Active CN107351633B (en)

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CN112455205A (en) * 2020-11-17 2021-03-09 东风柳州汽车有限公司 Heat management system of automobile

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CN105216584A (en) * 2015-10-20 2016-01-06 上海交通大学 The electronlmobil heat recovery heat pump type integrated thermal management system of flashed cold-patch gas
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