CN107359382A

CN107359382A - Automotive thermal tube manages system and electric automobile

Info

Publication number: CN107359382A
Application number: CN201610303532.1A
Authority: CN
Inventors: 黄健; 汪孟瑛; 陈雪峰; 叶梅娇
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2016-05-10
Filing date: 2016-05-10
Publication date: 2017-11-17
Anticipated expiration: 2036-05-10
Also published as: CN107359382B

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, first switch valve and the first plate type heat exchanger, battery cooling branch road and outdoor heat exchanger outlet of the refrigerant inlet of first plate type heat exchanger through on or off, or connected with the first end of the first end of the tie point of on or off and the second branch road of on or off, battery heating branch road through on or off connects with first switch valve inlet, battery cooling for reflux branch road of the refrigerant outlet of first plate type heat exchanger through on or off connects with compressor, and it is heated to reflux branch road through battery and is connected with first switch valve outlet, first plate type heat exchanger is connected in the battery coolant circuit of battery bag heat-exchange system simultaneously.So, battery is cooled down or heated using refrigerant so that battery works within the scope of suitable temperature all the time, to improve the efficiency for charge-discharge of battery, endurance and service life.

Description

Automotive thermal tube manages system and electric automobile

Technical field

The present invention relates to the field of air conditioning of electric automobile, in particular it relates to a kind of automotive thermal tube reason system and Electric automobile.

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

It is an object of the invention to provide a kind of automotive thermal tube reason system and electric automobile, to solve above-mentioned ask Topic.

To achieve these goals, according to the first aspect of the invention, there is provided a kind of automotive thermal tube manages system, 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 include indoor condenser, indoor evaporator, pressure Contracting machine and outdoor heat exchanger, the outlet of the compressor connects with the entrance of the indoor condenser, described The outlet of indoor condenser connects with the entrance of the first switch valve, the outlet choosing 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 to selecting property, institute With stating the egress selection of outdoor heat exchanger via the second throttling branch road or the second through-flow branch road and selectivity The tie point of on or off first end connection and with the second branch road of selective on or off First end connects, and the second end of the tie point connects with the entrance of the compressor, described second Second end on road connects with the entrance of the indoor evaporator, the indoor evaporator outlet and the compression The entrance connection of machine, the refrigerant inlet of first plate type heat exchanger is via selective on or off Battery cools down the outlet of branch road and the outdoor heat exchanger, or with described in selective on or off The first end connection of second branch road of the first end of tie point and selective on or off, and Connected via the battery heating branch road of selective on or off with the entrance of the first switch valve, it is described The refrigerant outlet of first plate type heat exchanger via selective on or off battery cooling for reflux branch road Connected with the entrance of the compressor, and branch road and the first switch valve are heated to reflux via battery Outlet, first plate type heat exchanger are connected on the battery cooling of the battery bag heat-exchange system simultaneously In liquid loop.

Alternatively, second switch valve is provided with the tie point.

Alternatively, it is provided with the 3rd switch valve on second branch road.

Alternatively, the heat pump type air conditioning system also includes：First triple valve, the outdoor heat exchanger go out Mouth optionally connects via the entrance of the second throttling branch road or the second through-flow branch road and first triple valve Logical, the first outlet of first triple valve connects with the first end of the tie point, and the described 1st The second outlet of port valve connects with the first end of second branch road.

Alternatively, the outlet of the indoor evaporator connects via the entrance of the first check valve and the compressor It is logical.

Alternatively, it is provided with the 4th switch valve on battery heating branch road.

Alternatively, it is provided with the 5th switch valve on the battery cooling for reflux branch road.

Alternatively, it is additionally provided with the second check valve on the battery cooling for reflux branch road.

Alternatively, it is heated to reflux being provided with the 3rd check valve on branch road in the battery.

Alternatively, the refrigerant inlet of first plate type heat exchanger via selective on or off electricity Pond cools down the outlet of branch road and the outdoor heat exchanger, and is set on battery cooling branch road There is the first expansion valve.

Alternatively, the refrigerant inlet of first plate type heat exchanger via selective on or off electricity Pond cool down the tie point of branch road and selective on or off first end and selectivity conducting or The second end connection of second branch road of cut-off, and it is provided with flow on battery cooling branch road Valve.

Alternatively, be additionally provided with the coolant circuit of the battery bag heat-exchange system with it is described first board-like The first water pump, deputy tank and the battery bag of heat exchanger series connection.

Alternatively, the 6th 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 includes the first expansion switch valve, the first expansion switch valve Entrance and the indoor condenser outlet, the outlet and the outdoor of the first expansion switch valve The entrance connection of heat exchanger, the first throttle branch road are the throttling runner of the described first expansion switch valve, The first through-flow branch road is the through-flow runner of the described first expansion switch valve.

Alternatively, the 7th 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 automotive thermal tube reason system is applied to electric automobile, and the automotive thermal tube reason system is also Including electromotor cooling system；

The heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, second plate-type heat-exchange Device is arranged in the described second through-flow branch road, and second plate type heat exchanger is arranged on the electricity simultaneously In machine cooling system.

Alternatively, the outlet of the refrigerant inlet of second plate type heat exchanger and the outdoor heat exchanger connects Logical, the refrigerant outlet of second plate type heat exchanger connects with the entrance of the 7th switch valve.

Alternatively, the electromotor cooling system includes connecting to form loop with second plate type heat exchanger Motor, motor radiator and the second water pump.

Alternatively, the heat pump type air conditioning system also includes the second expansion switch valve, the second expansion switch valve Entrance and the outdoor heat exchanger outlet, the outlet and the selection of the second expansion switch valve Property on or off tie point first end connection and with the second of the selective on or off The first end connection of branch road, the second throttling branch road are the throttling runner of the described second expansion switch valve, The second through-flow branch road is the through-flow runner of the described second expansion switch valve.

The heat pump type air conditioning system also includes：Second plate type heat exchanger, wherein, second plate-type heat-exchange The outlet of the refrigerant inlet of device and the described second expansion switch valve, second plate type heat exchanger Refrigerant outlet connected with the first end of the tie point of the selective on or off and with the choosing The first end connection of second branch road of selecting property on or off, and second plate type heat exchanger is set simultaneously Put in the electromotor cooling system.

Alternatively, the electromotor cooling system includes motor coolant main line, the first motor coolant branch road With the second motor coolant branch road, the first end on the motor coolant main line is optionally with described first The first end of motor coolant branch road or the connection of the first end of the second motor coolant branch road, described the Second end of one motor coolant branch road and the second end of the second motor coolant branch road and the electricity Machine coolant main line the second end connection, wherein, be in series with the motor coolant main line motor, Motor radiator and the second water pump, it is board-like on the first motor coolant branch road to be in series with described second Heat exchanger.

Alternatively, the heat pump type air conditioning system also includes gas-liquid separator, the outlet of the gas-liquid separator Connected with the entrance of the compressor, the entrance of the gas-liquid separator and the outlet of the indoor evaporator Connect and connected with the second end of the tie point, the refrigerant outlet warp of first plate type heat exchanger Connected by the battery cooling for reflux branch road with the entrance of the gas-liquid separator.

Alternatively, the heat pump type air conditioning system also includes ptc heater, and the ptc heater is used for pair The wind for flowing through the indoor condenser is heated.

Alternatively, the ptc heater is arranged in 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.

To sum up, automotive thermal tube reason system provided by the invention, is not changing the situation in refrigerant circulation direction Under, you can realize the refrigeration and heat-production functions of air conditioner heat pump system.Further, since increase is cooled down by battery Branch road, the first plate type heat exchanger and battery cooling for reflux branch road collectively constitute and indoor evaporator is in parallel The refrigerant diverter branch being used for battery cooling, and increase heats branch road, first board-like by battery Heat exchanger and battery be heated to reflux branch road collectively constitute with first switch valve be in parallel be used for battery is added The refrigerant diverter branch of heat, can avoid battery from being directly arranged in indoor evaporator, beneficial to vehicle cloth Put.In addition, automotive thermal tube reason system can be first with refrigerant so that cold by battery water circulation system But liquid cooling or heating, recycle coolant to be cooled down or heated to battery so that battery exists all the time Worked within the scope of suitable temperature, 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 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：

Figure 1A is the structural representation according to the heat pump type air conditioning system of one embodiment of the present invention；

Figure 1B is the structural representation according to the heat pump type air conditioning system of another embodiment of the 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 A are the structural representations according to the heat pump type air conditioning system of another embodiment of the invention；

Fig. 5 B are the structural representations according to the heat pump type air conditioning system of another embodiment of the invention；

Fig. 6 is the structural representation according to the heat pump type air conditioning system of another embodiment of the invention；

Fig. 7 is the structural representation that system is managed according to the automotive thermal tube of one embodiment of the present 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 overlooking the structure diagram for the expansion switch valve that the preferred embodiment for the present invention provides；

Figure 10 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port Open mode is in the second valve port；

Figure 11 is that the expansion switch valve that the preferred embodiment for the present invention provides along visual angle faces knot Structure schematic diagram；

Figure 12 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port In open mode, the second valve port is in closure state；

Figure 13 be along the cross-sectional view crossed by Fig. 9 center lines AB-AB, wherein, the first valve port In closure state, the second valve port is in open mode；

Figure 14 is the facing along another visual angle for the expansion switch valve that the preferred embodiment for the present invention provides Structural representation；

Figure 15 be along the cross-sectional view crossed by Figure 14 center lines AC-AC, wherein, the first valve Mouth is in open mode, and the second valve port is in closure state；

Figure 16 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 17 is the partial enlarged drawing in A portions in Figure 16；

Figure 18 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 19 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 addition, in the present invention, electric automobile can include pure electric automobile, hybrid vehicle, combustion Expect battery car.

In the present invention, electric automobile can include pure electric automobile, hybrid vehicle, fuel cell Automobile.

Figure 1A and Figure 1B is shown according to the structure of the heat pump type air conditioning system of one embodiment of the present invention It is intended to.As shown in Figure 1A, the system can include：HVAC (heating and ventilation and air-conditioning, Heating Ventilation and Air Conditioning) assembly 600, compressor 604 and outdoor heat exchanger 605. Wherein, HVAC assemblies 600 can include indoor condenser 601 and indoor evaporator 602.

In addition, as shown in Figure 1A, the outlet of compressor 604 connects with the entrance of indoor condenser 601, Changed via first throttle branch road or the first through-flow branch road with outdoor the egress selection of indoor condenser 601 Hot device 605 entrance connection, the egress selection of outdoor heat exchanger 605 via second throttling branch road or Second through-flow branch road connected with the first end of the tie point 620 of selective on or off and with selectivity The first end connection of second branch road 621 of on or off, the second end of tie point 620 and compressor 604 entrance connection, the second end of the second branch road 621 connect with the entrance of indoor evaporator 602, room The outlet of interior evaporator 602 connects with the entrance of compressor 604.

In the present invention, the branch road 621 of tie point 620 and second is to select according to the actual requirements Property on or off.For example, as shown in Figure 1A, second switch is provided with tie point 620 Valve 622, when second switch valve 622 is opened, tie point 620 turns on, when second switch valve 622 During closing, tie point 620 is ended.In addition, the 3rd switch valve 623 is provided with the second branch road 621, When the 3rd switch valve 623 is opened, the second branch road 621 turns on, when the 3rd switch valve 623 is closed, Second branch road 621 ends.

In another embodiment, as shown in Figure 1B, heat pump type air conditioning system can also include：One or three Port valve 644, the egress selection of outdoor heat exchanger 605 via the second throttling branch road or the second through-flow branch Road connects with the entrance 644a of the first triple valve 644, the first outlet 644b of the first triple valve 644 with The first end connection of tie point 620, the second outlet 644c and the second branch road of the first triple valve 644 621 first end connection.So, by first triple valve 644, tie point 620 can be controlled On or off, and the control on or off of the second branch road 621.

Illustratively, by control the first triple valve 644 entrance 644a- first outlets 644b conducting and Entrance 644a- second outlets 644c is not turned on, and tie point 620 can be controlled to turn on, the second branch road 621 Cut-off；And by controlling the entrance 644a- first outlets 644b of the first triple valve 644 to be not turned on, And entrance 644a- second outlets 644c is turned on, and tie point 620 can be controlled to end, the second branch road 621 Conducting.

In addition, in order to prevent that refrigerant is back in indoor evaporator 602 when tie point 620 turns on, Alternatively, as shown in FIG. 1A and 1B, the outlet of indoor evaporator 602 is via the first check valve 624 Connected with the entrance of compressor 604.So, it is merely able to allow refrigerant to flow to from indoor evaporator 602 Compressor 604, and can not flow round about.

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 Figure 1A Shown in Figure 1B, heat pump type air conditioning system can also include the first expansion switch valve 603, first expansion The outlet of the entrance of switch valve 603 and indoor condenser 601, the first expansion switch valve 603 Outlet connects with the entrance of outdoor heat exchanger 605, wherein, first throttle branch road is the first expansion switch valve 603 throttling runner, the first through-flow branch road are the through-flow runner of the first 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 6th switch valve 608 and the second expansion valve 607, wherein, the 6th switch is provided with 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 the 6th 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 high-temperature refrigeration pattern, the 6th Switch valve 608 is turned on, and the second expansion valve 607 is closed, and the outlet of indoor condenser 601 is logical via first Stream branch road connects with the entrance of outdoor heat exchanger 605.When system is under low temperature heating pattern, second Expansion valve 607 is turned on, and the 6th switch valve 608 is closed, and the outlet of indoor condenser 601 is via first segment Stream branch road connects with the entrance of outdoor heat exchanger 605.

It is similar with the implementation of the first through-flow branch road and first throttle branch road, as the second through-flow branch road With the one of which embodiment of the second throttling branch road, as shown in FIG. 1A and 1B, heat pump air conditioner system System can also include the second expansion switch valve 606, and the entrance of the second expansion switch valve 606 changes with outdoor The outlet of hot device 605, the outlet of the second expansion switch valve 606 and selective on or off Tie point 620 first end connection and with the first end of the second branch road 621 of selective on or off Connection, wherein, second throttles branch road as the second throttling runner for expanding switch valve 606, the second through-flow branch Road is the through-flow runner of the second expansion switch valve 606.

Embodiment alternatively, as shown in figure 3, the heat pump type air conditioning system can also include 7th switch valve 610 and the 3rd expansion valve 609, wherein, the 7th switch is provided with the second through-flow branch road Valve 610, second throttling branch road on be provided with the 3rd expansion valve 609.Specifically, as shown in figure 3, room The outlet of external heat exchanger 605 is via the 7th switch valve 610 and the tie point of selective on or off 620 first end is connected and connected with the first end of the second branch road 621 of selective on or off with shape Into the second through-flow branch road, the outlet of outdoor heat exchanger 605 turns on via the 3rd expansion valve 609 with selectivity Or cut-off tie point 620 first end connection and with the second branch road 621 of selective on or off First end connect to form the second throttling branch road.When system is under high-temperature refrigeration pattern, the 3rd is swollen Swollen valve 609 is turned on, and the 7th switch valve 610 is closed, and the outlet of outdoor heat exchanger 605 is via the second throttling Branch road with turn on the second branch road 621 the second end connect and with the second end of the tie point 620 of cut-off Connection.When system is under low temperature heating pattern, the 7th switch valve 610 turns on, the 3rd expansion valve 609 Close, the outlet of outdoor heat exchanger 605 is via the of the second through-flow branch road and the tie point 620 of conducting Two ends connect and connected with the second end of the second branch road 621 of cut-off.

Laid in order to facilitate pipeline, save space hold, it is preferable that in heat pump air conditioner provided by the invention Switch valve 606 is expanded using the first expansion switch valve 603 and second in system, i.e. Figure 1A and Figure 1B Shown embodiment.

Fig. 4 shows the structural representation of the heat pump type air conditioning system according to another embodiment of the present invention. As shown in figure 4, the heat pump type air conditioning system can also include gas-liquid separator 611, wherein, indoor evaporation The outlet of device 602 connects with the entrance of gas-liquid separator 611, the second end of tie point 620 and gas-liquid The entrance connection of separator 611, 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 enter promoting the circulation of qi Liquid is separated, and the gas isolated is back in compressor 604 again, so as to prevent liquid refrigerant from entering Compressor 604 and damage compressor 604, so as to extend the service life of compressor 604, and carry The efficiency of high whole heat pump type air conditioning system.

Under low temperature heating pattern, in order to improve heating ability, it is preferable that such as Fig. 5 A and Fig. 5 B institutes Show, the second plate type heat exchanger 612, second plate type heat exchanger are provided with whole heat pump type air conditioning system 612 are also disposed in the electromotor cooling system of electric automobile simultaneously.So, motor can be utilized to cool down The waste heat of system gives air-conditioning system refrigerant heat, so as to improve the suction temperature of compressor 604 and suction Tolerance.

For example, as shown in Figure 5A, in heat pump type air conditioning system using the 3rd expansion valve 609 and the 7th switch In the embodiment of valve 610, it is logical that the second plate type heat exchanger 612 can be arranged on second as shown in Figure 5A Flow in branch road.For example, in one embodiment, the refrigerant inlet 612a of the second plate type heat exchanger 612 With the outlet of outdoor heat exchanger 605, the refrigerant outlet 612b of the second plate type heat exchanger 612 with The entrance connection of 7th switch valve 610.Or (not shown) in another embodiment, second The refrigerant inlet 612a of plate type heat exchanger 612 can also with the outlet of the 7th switch valve 610, The refrigerant outlet 612b of second plate type heat exchanger 612 and the tie point 620 of selective on or off First end connection and connected with the first end of the second branch road 621 of selective on or off.

At the same time, the second plate type heat exchanger 612 is arranged in electromotor cooling system simultaneously.Such as Fig. 5 A It is shown, 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 second.So, refrigerant can pass through the second plate type heat exchanger 612 Heat exchange is carried out with the coolant in electromotor cooling system.Refrigerant passes through the 7th switch valve 610 and second After switch valve 622, return in compressor 604.

Or as shown in Figure 5 B, the implementation in heat pump type air conditioning system using the second expansion switch valve 606 In mode, the expansion switch valves 606 of the refrigerant inlet 612a of the second plate type heat exchanger 612 and second Outlet, refrigerant outlet 612b and the selective on or off of the second plate type heat exchanger 612 Tie point 620 first end connection and with the first end of the second branch road 621 of selective on or off Connection, and the second plate type heat exchanger 612 is arranged in the electromotor cooling system of electric automobile simultaneously.This Sample, refrigerant can carry out heat by the second plate type heat exchanger 612 with the coolant in electromotor cooling system Exchange.Refrigerant is returned in compressor 604 after second switch valve 622.

By the second plate type heat exchanger 612, air-conditioning system can be improved in low temperature heating pattern, Yi Jitong When refrigeration and heating pattern under heating ability.

But, the embodiment party in the heat pump type air conditioning system shown in Fig. 5 B using the second expansion switch valve 606 In formula, in order to avoid carrying out the heating of refrigerant under high-temperature refrigeration pattern, it can be controlled using valve Whether in the second plate type heat exchanger 612 heat exchange is carried out.Specifically, electromotor cooling system can include Coolant main line 616, the first coolant branch road 617 and the second coolant branch road 618, wherein, cooling The first end on the liquid main line 616 optionally first end or the second coolant with the first coolant branch road 617 The first end connection of branch road 618.For example, in one embodiment, the first of coolant main line 616 End can connect with the import 615a of the second triple valve 615, the first end of the first coolant branch road 617 It can be connected with the first outlet 615b of the second triple valve 615, the first of the second coolant branch road 618 End can connect with the second outlet 615c of the second triple valve 615, thus, pass through second triple valve 615, can control the first end on coolant main line 616 optionally with the first coolant branch road 617 First end or the connection of the first end of the second coolant branch road 618.In addition, as shown in Figure 5 B, first is cold But the second end of liquid branch road 617 connects with second end on coolant main line 616, and the second coolant branch Second end on road 618 also connects with second end on coolant main line 616, wherein, on coolant main line 616 On be in series with motor, the water pump 614 of motor radiator 613 and second, on the first coolant branch road 617 It is in series with the second plate type heat exchanger 612.

So, when air-conditioning system is operated under low temperature heating pattern, now in order to improve heating ability, Need to heat refrigerant in the second plate type heat exchanger 612.Therefore, in this case, may be used So that by controlling the coolant branch road 617 of the second triple valve 615 first to turn on, thus, motor cools down Coolant in system flows through the second plate type heat exchanger 612, is handed at this point it is possible to realize with the heat of refrigerant Change.However, when system is operated under high-temperature refrigeration pattern, now need not be in the second plate type heat exchanger Refrigerant is heated in 612.Therefore, in such a case, it is possible to by controlling the second triple valve 615 cause the second coolant branch road 618 to turn on, and thus, the coolant in electromotor cooling system is not passed through Second plate type heat exchanger 612, the runner of the second plate type heat exchanger 612 as just refrigerant flow through.

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. 6 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, heat pump type air conditioning system can also include ptc heater 619, and the ptc heater 619 is used for The wind for flowing through indoor condenser 601 is heated.

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 (12V or 24V batteries drive), voltage range：9V-32V.In addition, this ptc heater 619 can be by Several or a complete core body of several pieces of PTC-ceramic piece modules and radiating fin composition, or The PTC-ceramic piece module of strip with radiating fin or bulk.

In the present invention, the ptc heater 619 can arrange the windward side of condenser 601 indoors Or leeward side.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, It can also be arranged at the air port of defrosting duct.

If ptc heater 619 is arranged in the windward side or leeward of casing interior room inner condenser 601 Side, be arranged in parallel with indoor condenser 601, can the grooving on casing housing, ptc heater 619 hang down Straight cutting enters to put casing into, can also welding support, ptc heater on the side plate of condenser 601 indoors 619 are fixed by screws on the support of indoor condenser 601.If ptc heater 619 is arranged In blowing at pin air port and defrosting outlet for casing, or it is arranged at the air port of defrosting duct, screw can be passed through It is directly anchored 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 ptc heater 619 can be run, it is possible thereby to eliminate heat pump air conditioner The defects of heating capacity is small when system hypothermia heats, and vehicle defrosting-defogging is slow, and heating effect is bad.

Fig. 7 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. 7, the system can include heat pump type air conditioning system described above, battery bag heat-exchange system and First plate type heat exchanger 637, wherein, the refrigerant inlet of the first plate type heat exchanger 637 is via selectivity The outlet of battery cooling branch road and the outdoor heat exchanger 605 of on or off, or with selective conducting Or cut-off tie point 620 first end and selective on or off the second branch road 621 first End connection, the refrigerant outlet of the first plate type heat exchanger 637 is via battery cooling for reflux branch road and compressor 604 entrance connection, the battery that the first plate type heat exchanger 637 is connected on battery bag heat-exchange system simultaneously are cold But in liquid loop.

That is, as the present invention a main inventive concept, be by increase by battery cool down branch road, First plate type heat exchanger 637 and battery cooling for reflux branch road the collectively constitute and phase of indoor evaporator 602 is simultaneously The refrigerant diverter branch being used for motor cooling of connection, so, when high-temperature refrigeration powers up pond refrigerating mode When lower, refrigerant is segmented into two strands：Wherein one refrigerant flow direction indoor evaporator 602, and in room Evaporated in interior evaporator 602, absorb indoor environment heat, reduce indoor temperature；Another burst of cold-producing medium stream To the first plate type heat exchanger 637, and pass through the electricity of the first plate type heat exchanger 637 and battery bag heat-exchange system Coolant in the coolant circuit of pond is exchanged heat, and absorbs the heat of coolant, and then can realize to electricity Chi Bao cooling.

In the present invention, the connected mode of the refrigerant inlet of the first plate type heat exchanger 637 has both of which： In one embodiment, as shown in fig. 7, the refrigerant inlet of the first plate type heat exchanger 637 can be through By the outlet of the battery cooling branch road and outdoor heat exchanger 605 of selective on or off.Specifically, The first expansion valve 638 can be set on battery cooling branch road.So, can pass through according to the actual requirements The first expansion valve 638 is opened or closed to control whether refrigerant can flow into the first plate type heat exchanger 637 refrigerant inlet.That is, it is in the conduction state to control battery cooling branch road, is in ending State.

In this embodiment, in the case where high-temperature refrigeration powers up pond refrigerating mode, from outdoor heat exchanger 605 The refrigerant of medium temperature high pressure out is directly divided into two strands：One flows to the second expansion switch valve 606；Separately One flows to the first expansion valve 638.In other words, now refrigerant is divided again on every branch road after shunting Not carry out reducing pressure by regulating flow.

In another embodiment, as shown in figure 8, the refrigerant inlet of the first plate type heat exchanger 637 Via the battery cooling branch road and the tie point 620 of selective on or off of selective on or off First end connection and connected with the first end of the second branch road 621 of selective on or off, and Flow valve 635 is provided with battery cooling branch road.Specifically in the embodiment shown in Fig. 8, outdoor is changed The outlet of hot device 605 passes through the second expansion switch valve 606 and the tie point of selective on or off 620 first end connection, is connected with the first end of the second branch road 621 of selective on or off, with And enter via the refrigerant of battery the cooling branch road and the first plate type heat exchanger 637 of selective on or off Mouth connection.

So, by controlling flow valve 635 refrigerant can be controlled whether can to flow into first board-like The refrigerant inlet of heat exchanger 637, i.e. control battery cooling branch road is in the conduction state, or place In cut-off state.In addition, control flow valve 635, which can also regulate and control refrigerant, flows into the first plate type heat exchanger The size of 637 flow.

In this embodiment, under high-temperature refrigeration plus battery-heated model, from outdoor heat exchanger 605 The refrigerant of medium temperature high pressure out is divided into two strands after the throttling of the second expansion switch valve 606：One Flow to the 3rd switch valve 623, now, second switch valve 622 is closed, another plume to flow valve 635, To realize the distribution of the flow proportional of two strands of refrigerants.In other words, now, refrigerant is first on main line Carry out what then reducing pressure by regulating flow was shunted again.

In order to prevent under low temperature heating pattern, the refrigerant of low-temp low-pressure is back to the first plate type heat exchanger In 637, the second check valve 628 is provided with battery cooling for reflux branch road.That is, the second check valve 628 The refrigerant outlet of refrigerant from the first plate type heat exchanger 637 can only be uniaxially allowed to flow to compressor 604 Entrance, and can not flow round about.

First check valve 624 mentioned hereinabove is also prevented from only cooling down battery bag 640 When, the refrigerant of low-temp low-pressure is back in indoor evaporator 602 i.e., and the first check valve 624 can only be single Refrigerant is allowed to flow to from the outlet of indoor evaporator 602 entrance of compressor 604 to ground, and can not be to Opposite direction flows.

In one embodiment, it is additionally provided with the coolant circuit of battery bag heat-exchange system and the first plate The first water pump 642, deputy tank 625 and the battery bag 640 that formula heat exchanger 637 is connected.

So, the cooling liquid outlet of battery bag 640 connects with the coolant inlet of deputy tank 625, secondary water The cooling liquid outlet of case 625 connects with the coolant inlet of the first water pump 642, the first water pump 642 it is cold But liquid outlet connects with the coolant inlet of the first plate type heat exchanger 637, the first plate type heat exchanger 637 Cooling liquid outlet connects with the coolant inlet of battery bag 640, is consequently formed battery bag cooling/heating and follows Ring.

As described above, to prevent liquid refrigerant enters compressor 604 from damaging compressor 604, from And the service life of compressor 604 can be extended, and improve the efficiency of whole heat pump type air conditioning system.In heat Gas-liquid separator 611 is provided with pump air conditioner system.As shown in Figure 7 and Figure 8, gas-liquid separator 611 Entrance connected except the second end of the outlet with indoor evaporator 602 and tie point 620 in addition to, The refrigerant outlet of one plate type heat exchanger 637 is also via battery cooling for reflux branch road and gas-liquid separator 611 Entrance connection.In other words, the refrigerant come out from the first plate type heat exchanger 637 can also first pass around Gas-liquid separator 611 carries out gas-liquid separation, and the gas isolated is back in compressor 604 again, so as to Prevent liquid refrigerant from entering compressor 604 and damaging compressor 604.

Return now in the structural representation of the automotive thermal tube reason system shown in Fig. 7.As shown in fig. 7, In the system, automotive thermal tube reason system can also include first switch valve 630, wherein, indoor condenser 601 outlet connects with the entrance of first switch valve 630, the egress selection of first switch valve 630 Connected via first throttle branch road or the first through-flow branch road with the entrance of outdoor heat exchanger 605.It is specific such as to scheme Shown in 7, the outlet of first switch valve 630 can be via the first expansion switch valve 603 and outdoor heat exchanger 605 entrance connection.In addition, the refrigerant inlet of the first plate type heat exchanger 637 is via selective conducting Or the battery heating branch road of cut-off connects with the entrance of first switch valve 630, the first plate type heat exchanger 637 Refrigerant outlet the outlet of branch road and first switch valve 630, the first plate are heated to reflux via battery Formula heat exchanger 637 is connected in the battery coolant circuit of battery bag heat-exchange system simultaneously.

That is, another inventive concept as the present invention, it is by the outlet of condenser 601 indoors and the Increase first switch valve 630 between one expansion switch valve 603, and increase be respectively communicated with it is board-like to first The refrigerant inlet of heat exchanger 637 and the battery heating branch road and battery of refrigerant outlet are heated to reflux propping up Road, and battery heating branch road, the first plate type heat exchanger 637 and battery be heated to reflux branch road collectively constitute and The refrigerant diverter branch being used for battery heating that first switch valve 630 is in parallel.So, low temperature is worked as When heating is added under battery-heated model, the refrigerant of the medium temperature high pressure come out from indoor condenser 601 can To be divided into two strands：The wherein entrance of one refrigerant flow direction first switch valve 630, another burst of cold-producing medium stream To the first plate type heat exchanger 637, and pass through the electricity of the first plate type heat exchanger 637 and battery bag heat-exchange system Coolant in the coolant circuit of pond is exchanged heat, the heat of coolant absorption refrigeration agent release, Jin Erke To realize the heat temperature raising to battery bag.

Battery heating branch road whether is flowed through for ease of control refrigerant, the is provided with battery heating branch road Four switch valves 631.So, when needing to heat battery, for example, under battery-heated model, The 4th switch valve 631 can be opened, now, refrigerant can flow through the first plate type heat exchanger 637, carry Heating load gives battery bag heat-exchange system.When that need not be heated to battery, for example, being cooled down in battery Under pattern, the 4th switch valve 631 can be closed, prevents the refrigerant of HTHP from entering first and board-like changing Hot device 637 carries out heat temperature raising to battery, and causing the temperature of battery further increases.

To prevent under battery-heated model, come out from the refrigerant outlet of the first plate type heat exchanger 637 The refrigerant of cryogenic high pressure flows directly into compressor 604, causes the infringement to compressor, is cooled down in battery The 5th switch valve 633 is provided with backflow branch road.So, can when system is under battery-heated model With the 5th switch valve 633 of closing so that come out from the refrigerant outlet of the first plate type heat exchanger 637 low The refrigerant of warm high pressure is all heated to reflux branch road via battery and flows to the first expansion switch valve 603.

To prevent under battery refrigerating mode, the gas system of the HTHP come out from indoor condenser 601 Cryogen is heated to reflux branch road after first switch valve 630, along battery and flows to the first plate type heat exchanger 637 refrigerant outlet, it is heated to reflux being provided with the 3rd check valve 632 on branch road in battery.That is, Three check valves 632 can uniaxially allow refrigerant from the refrigerant outlet stream of the first plate type heat exchanger 637 To the first expansion switch valve 603, and can not flow in opposite direction.

Below system will be managed in different works automotive thermal tube provided by the invention is described in detail by taking Fig. 7 as an example Cyclic process and principle under operation mode.It should be appreciated that other embodiment is (for example, Fig. 8 institutes The embodiment shown) under system circulation process and principle to Fig. 7 be it is similar, herein just no longer one by one Repeat.

Pattern one：High-temperature refrigeration pattern.System be in system in this mode when, whole system Form a high-temperature refrigeration circulatory system.As shown in fig. 7, first, compressor 604 is discharged through overcompression The gas of HTHP, it is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601, due to calm process, therefore, heat exchange, the interior will not be carried out in condenser 601 indoors 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 the first expansion switch valve 603, now the first expansion switch valve 603 Switch valve action is played, is only flowed through as runner, now the first expansion switch valve 603 exports still high for high temperature The gas of pressure.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 Exchanged heat with outdoor air, heat is dispersed into air, the outlet of outdoor heat exchanger 605 is medium temperature high pressure Liquid.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, now the second expansion switch Valve 606 plays expansion valve action, and throttling action is played as restricting element, and its outlet is low temperature and low pressure liquid. The second expansion aperture of switch valve 606 can give certain aperture according to the actual requirements, and this aperture can root Passed according to the pressure-temperature between the entrance of the outlet of indoor evaporator 602 and gas-liquid separator 611 The pressure and temperature gathered data of sensor calculates indoor evaporator 602 and exports refrigerant superheat degree to adjust. Second switch valve 622 is closed, and the 3rd switch valve 623 is opened, and so, tie point 620 is ended, the Two branch roads 621 turn on.The low temperature and low pressure liquid come out from the second expansion switch valve 606 gets in evaporation It is evaporated in device 602 so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure.Indoor evaporation Device 602 is connected with gas-liquid separator 611, and 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 HVAC is total Flow direction into 600 apoplexy flows only through indoor evaporator 602, indoor 601 calm process of condenser, only makees Flowed through for refrigerant flow path, the 4th switch valve 631 is closed, and the first expansion valve 638, which is in, to close Closed state, first switch valve 630 are in open mode, and the 5th switch valve 633 is closed.

Pattern two：Battery refrigerating mode.System in this mode when, battery bag heat-exchange system is formed One battery bag cooling recirculation system.As shown in fig. 7, first, compressor 604 is discharged high through overcompression The gas of warm high pressure, it is connected with indoor condenser 601.Now, wind is controlled without indoor condenser 601, Due to calm process, therefore, heat exchange will not be carried out in condenser 601 indoors, the indoor condenser 601 are only used as runner, and now indoor condenser 601 is exported still as the gas of HTHP.It is indoor Condenser 601 exports to be connected with the first expansion switch valve 603, and now the first expansion switch valve 603 rises out Valve action is closed, is only flowed through as runner, now the first expansion switch valve 603 is exported still as HTHP Gas.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 and Outdoor air is exchanged heat, and heat is dispersed into air, and the outlet of outdoor heat exchanger 605 is the liquid of medium temperature high pressure Body.The outlet of outdoor heat exchanger 605 is connected with the first expansion valve 638, by the section of the first expansion valve 638 Stream cooling, the outlet of the first expansion valve 638 is low temperature and low pressure liquid.The aperture of first expansion valve 638 can be with Certain aperture is given according to the actual requirements, and this aperture can be according to installed in the first plate type heat exchanger 637 Refrigerant outlet and gas-liquid separator 611 entrance between pressure-temperature sensor pressure and temperature Gathered data is spent to adjust.First expansion valve 638 exports to be entered with the refrigerant of the first plate type heat exchanger 637 Mouth is connected, hot water of the low temperature and low pressure liquid in the first plate type heat exchanger 637 with being come out from battery bag 640 Carry out heat exchange so that the refrigerant outlet of the first plate type heat exchanger 637 is the gas of low-temp low-pressure.The The refrigerant outlet of one plate type heat exchanger 637 is connected with gas-liquid separator 611, the liquid not being evaporated Separated by gas-liquid separator 611, the gas of last low-temp low-pressure is returned in compressor 604, thus shape Into a circulation.Now in HVAC assemblies 600, indoor 601 calm process of condenser, only as system Refrigerant flow conduit is flowed through, and the 4th switch valve 631 is closed, and first switch valve 630 is in open shape State, the 5th switch valve 633 are in open mode, and the first expansion valve 638 is in running order, i.e. rise Throttling action, the second expansion switch valve 606 are closed.

Pattern three：High-temperature refrigeration power-up pond cooling circulation pattern.When in this mode, whole system is formed One high-temperature refrigeration while battery cooling recirculation system.As shown in fig. 7, first, compressor 604 passes through The gas of compression discharge HTHP, is connected with indoor condenser 601.Now, wind is controlled without room 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 the first expansion switch valve 603, now first expands Close valve 603 and play switch valve action, only flowed through as runner, now the first expansion switch valve 603 exports still For the gas of HTHP.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor Heat exchanger 605 is exchanged heat with outdoor air, and heat is dispersed into air, and the outlet of outdoor heat exchanger 605 is The liquid of medium temperature high pressure.Outdoor heat exchanger 605 exports swollen with the second expansion switch valve 606 and first respectively Swollen valve 638 is connected, and 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 second expansion switch valve 606, and now, the second expansion switch valve 606 plays expansion valve Act on identical, play throttling action as restricting element, its outlet is low temperature and low pressure liquid.Second expansion The aperture of switch valve 606 can give certain aperture according to the actual requirements, and this aperture can be according to installation Pressure-temperature sensor between the entrance of the outlet of evaporator 602 and gas-liquid separator 611 indoors Pressure and temperature gathered data calculates indoor evaporator 602 and exports refrigerant superheat degree to adjust.Second opens Close valve 622 to close, the 3rd switch valve 623 is opened, and so, tie point 620 is ended, the second branch road 621 conductings.The low temperature and low pressure liquid come out from the second expansion switch valve 606 gets in evaporator 602 Inside it is evaporated so that the outlet of indoor evaporator 602 is the gas of low-temp low-pressure.Another plume is to first The entrance of expansion valve 638, the aperture of the first expansion valve 638 can give certain open according to the actual requirements Degree, this aperture can be according to the refrigerant outlets and gas-liquid separator 611 of the first plate type heat exchanger 637 The pressure and temperature gathered data of pressure-temperature sensor between entrance is adjusted.By the first expansion The reducing pressure by regulating flow of valve 638, the outlet of the first expansion valve 638 is low temperature and low pressure liquid.First expansion valve 638 Outlet is connected with the refrigerant inlet of the first plate type heat exchanger 637, and low temperature and low pressure liquid board-like changes first Heat exchange is carried out with the hot water come out from battery bag 640 so that the first plate type heat exchanger 637 in hot device 637 Refrigerant outlet be low-temp low-pressure gas.The outlet of indoor evaporator 602 and the first plate type heat exchanger 637 refrigerant outlet is connected with gas-liquid separator 611 respectively, from the system of the first plate type heat exchanger 637 Refrigerant of the refrigerant that cryogen exports out with the outlet from indoor evaporator 602 out converges, not The liquid being evaporated is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure returns to compressor In 604, a circulation is consequently formed.Now the flow direction of the apoplexy of HVAC assemblies 600 flows only through indoor steaming Device 602 is sent out, indoor 601 calm process of condenser, is only flowed through as refrigerant flow path, the 4th switch valve 631 are closed, and first switch valve 630 is in open mode, and the 5th switch valve 633 is in and beaten Open state, the second expansion switch valve 606 is in running order, and the first expansion valve 638 is in running order.

Pattern four：Low temperature heating pattern.System in this mode when, whole system formed one it is low Warm heating circulation system.As shown in fig. 7, first, compressor 604 discharges HTHP through overcompression Gas, it is connected with indoor condenser 601, progress is cold in condenser 601 indoors for the gas of HTHP It is solidifying so that the indoor outlet of condenser 601 is the liquid of medium temperature high pressure.Indoor condenser 601 outlet and the One expansion switch valve 603 is connected, and now the first expansion switch valve 603 plays expansion valve, as section Fluid element plays throttling action, and it exports the liquid for low-temp low-pressure.Wherein, the first expansion switch valve 603 Aperture can give certain aperture according to the actual requirements, this aperture can be according to installed in compressor The temperature acquisition data (i.e. compressor exhaust temperature) of the pressure-temperature sensor in 604 exit it is more It is few to adjust.First expansion switch valve 603 outlet is connected with outdoor heat exchanger 605, outdoor heat exchanger 605 The heat of outdoor air is absorbed, the outlet of outdoor heat exchanger 605 is the gas of low-temp low-pressure.Outdoor heat exchanger 605 outlets are connected with the second expansion switch valve 606, and now the second expansion switch valve 606 plays switch valve Effect, only flows through as a runner.Second switch valve 622 is opened, and the 3rd switch valve 623 is closed, So, tie point 620 turns on, and the second branch road 621 ends.Come out from the second expansion switch valve 606 The gas of low-temp low-pressure be directly entered gas-liquid separator 611, the liquid not being evaporated is passed through gas-liquid point Separated from device 611, the gas of last low-temp low-pressure is returned in compressor 604, is consequently formed a circulation. Now, the 4th switch valve 631 is closed, and first switch valve 630 is in open mode, and the 5th Switch valve 633 is closed, and the first expansion valve 638 is closed.

Bellows design based on existing HVAC, if it is desired to control wind to pass through indoor condenser 601, So wind is first had to by can just get in condenser 601 after indoor evaporator 602.But adopting Heat exchange can not be carried out in indoor evaporator 602 under warm pattern, therefore, tie point 620 is turned on, cuts Only the second branch road 621 so that indoor evaporator 602 is shorted, even distinguished and admirable through indoor evaporator 602, Refrigerant temperature is also unaffected.

Pattern five：Battery-heated model.System in this mode when, battery bag heat-exchange system is formed One battery bag heating circulation system.

As shown in fig. 7, first, compressor 604 discharges the gas of HTHP through overcompression, with interior Condenser 601 is connected, and now, control wind is without indoor condenser 601, due to calm process, because This, will not carry out heat exchange indoors in condenser 601, the indoor condenser 601 only makes as runner With now indoor condenser 601 is exported still as the gas of HTHP.The outlet of indoor condenser 601 with 4th switch valve 631 is connected, the refrigerant inlet of the 4th switch valve 631 and the first plate type heat exchanger 637 Be connected, from indoor condenser 601 outflow HTHP gas in the first plate type heat exchanger 637 with The cold water come out from battery bag 640 carries out heat exchange, and the refrigerant outlet of the first plate type heat exchanger 637 is The liquid refrigerant of medium temperature high pressure.The refrigerant outlet of first plate type heat exchanger 637 passes through the 3rd check valve 632 are connected with the entrance of the first expansion switch valve 603.Now the first expansion switch valve 603 plays expansion valve Effect, play throttling action as restricting element, its export for low-temp low-pressure liquid.Wherein, The aperture of one expansion switch valve 603 can give certain aperture according to the actual requirements, and this aperture can root (compressed according to the temperature acquisition data of the pressure-temperature sensor installed in the exit of compressor 604 Machine delivery temperature) number adjust.First expansion switch valve 603 outlet and the phase of outdoor heat exchanger 605 Even, outdoor heat exchanger 605 absorbs the heat of outdoor air, and the outlet of outdoor heat exchanger 605 is low-temp low-pressure Gas.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, now second expands Close valve 606 and play switch valve, only flowed through as a runner.Second switch valve 622 is opened, the Three switch valves 623 are closed, and so, tie point 620 turns on, and the second branch road 621 ends.From second The gas of low-temp low-pressure that expansion switch valve 606 comes out is directly entered gas-liquid separator 611, not evaporating Complete liquid is separated by gas-liquid separator 611, and the gas of last low-temp low-pressure is returned in compressor 604, It is consequently formed a circulation.Now the air door mechanism in HVAC assemblies 600 is closed, and wind does not flow to room Inner condenser 601 and indoor evaporator 602, only flow through as refrigerant flow path, first switch valve 630 It is closed, the 4th switch valve 631 is in open mode, and the 5th switch valve 633, which is in, closes shape State, the first expansion valve 638 are closed.

Pattern six：Low temperature heating and battery-heated model.System in this mode when, battery is guaranteed replacement Hot systems form a battery bag heating circulation system.

As shown in fig. 7, first, compressor 604 discharges the gas of HTHP through overcompression, with interior Condenser 601 is connected, and the gas of HTHP is condensed in condenser 601 indoors so that indoor The outlet of condenser 601 is the liquid of medium temperature high pressure.Now, the medium temperature height come out from indoor condenser 601 The liquid of pressure is divided into two strands：One flows into the first plate type heat exchanger 637 by the 4th switch valve 631, Heat exchange is carried out with the cold water come out from battery bag 640 at first plate type heat exchanger 637, first board-like changes The refrigerant outlet of hot device 637 be medium temperature high pressure liquid refrigerant, the system of the first plate type heat exchanger 637 Cryogen outlet is connected by the 3rd check valve 632 with the outlet of first switch valve 630.Another stock then passes through After first switch valve 630, the liquid refrigeration with the medium temperature high pressure of the outlet from the 3rd check valve 632 out Agent converges, and flows into the entrance of the first expansion switch valve 603.Now the first expansion switch valve 603 rises The effect of expansion valve, throttling action is played as restricting element, it exports the liquid for low-temp low-pressure.Its In, the aperture of the first expansion switch valve 603 can give certain aperture, this aperture according to the actual requirements Can be according to the temperature acquisition data of the pressure-temperature sensor installed in the exit of compressor 604 (i.e. Compressor exhaust temperature) number adjust.First expansion switch valve 603 outlet and outdoor heat exchanger 605 It is connected, outdoor heat exchanger 605 absorbs the heat of outdoor air, and the outlet of outdoor heat exchanger 605 is low for low temperature The gas of pressure.Outdoor heat exchanger 605 exports to be connected with the second expansion switch valve 606, now the second expansion Switch valve 606 plays switch valve, is only flowed through as a runner.Second switch valve 622 is opened, 3rd switch valve 623 is closed, and so, tie point 620 turns on, and the second branch road 621 ends.From The gases of low-temp low-pressure that two expansion switch valves 606 come out are directly entered 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, the 4th switch valve 631 is in open mode, first switch valve 630 are in open mode, and the 5th switch valve 633 is closed, and the first expansion valve 638, which is in, to close Closed state.

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 9, 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 Fig. 9 to Figure 14, 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 Fig. 9 to Figure 12, 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 13, 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 16 to Figure 19, import 501 It is opened in mutual vertically on valve body 500 with outlet 502.So, as shown in Figure 16 to Figure 18, 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 12 and Figure 13, 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 15, 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 12 and Figure 13, 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 12, 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 13, 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 12, Tu15He Shown in Figure 18, 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 12 and Figure 18 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 13 and Figure 19, 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 13 and Figure 19 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 10th, shown in Figure 16 and Figure 17, 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 automotive thermal tube reason 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

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 (637), The heat pump type air conditioning system includes indoor condenser (601), indoor evaporator (602), compressor (604) 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) Egress selection via the of the second throttling branch road or the second through-flow branch road and selective on or off The first end connection of one branch road (620) and with the of the second branch road (621) of selective on or off One end connects, and the second end of the tie point (620) connects with the entrance of the compressor (604), Second end of second branch road (621) connects with the entrance of the indoor evaporator (602), described The outlet of indoor evaporator (602) connects with the entrance of the compressor (604), and described first is board-like The refrigerant inlet of heat exchanger (637) via selective on or off battery cool down branch road with it is described The outlet of outdoor heat exchanger (605), or the tie point (620) with selective on or off First end and selective on or off second branch road (621) first end connection, and Connect via the battery heating branch road and the entrance of the first switch valve (630) of selective on or off It is logical, the refrigerant outlet of first plate type heat exchanger (637) via selective on or off electricity Pond cooling for reflux branch road connects with the entrance of the compressor (604), and is heated to reflux via battery Branch road and the outlet of the first switch valve (630), first plate type heat exchanger (637) are same When be connected in the battery coolant circuit of the battery bag heat-exchange system.

2. automotive thermal tube according to claim 1 manages system, it is characterised in that described first Second switch valve (622) is provided with road (620).

3. automotive thermal tube according to claim 1 manages system, it is characterised in that described second The 3rd switch valve (623) is provided with road (621).

4. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also includes：First triple valve (644), the egress selection of the outdoor heat exchanger (605) Ground is via the second throttling branch road or the second through-flow branch road and the entrance (644a) of first triple valve (644) Connection, first outlet (644b) and the tie point (620) of first triple valve (644) First end connection, the second outlet (644c) of first triple valve (644) with described second The first end connection on road (621).

5. 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 first check valve (624) and the compressor (604) It is logical.

6. automotive thermal tube according to claim 1 manages system, it is characterised in that in the battery The 4th switch 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 The 5th switch valve (633) is provided with cooling for reflux branch road.

8. automotive thermal tube according to claim 7 manages system, it is characterised in that in the battery The second check valve (628) is additionally provided with cooling for reflux branch road.

9. 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 3rd check valve (632) on branch road.

10. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet of formula heat exchanger (637) cools down branch road and institute via the battery of selective on or off The outlet of outdoor heat exchanger (605) is stated, and first is provided with battery cooling branch road Expansion valve (638).

11. automotive thermal tube according to claim 1 manages system, it is characterised in that first plate The refrigerant inlet of formula heat exchanger (637) cools down branch road and choosing via the battery of selective on or off The first end of the tie point (620) of selecting property on or off and the institute of selective on or off The first end connection of the second branch road (621) is stated, and flow is provided with battery cooling branch road Valve (635).

12. 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 (637) is additionally provided with the coolant circuit of heat-exchange system One water pump (642), deputy tank (625) and battery bag (640).

13. automotive thermal tube according to claim 1 manages system, it is characterised in that described first is logical The 6th switch valve (608) is provided with stream branch road, the second expansion valve is provided with the first throttle branch road (607)。

14. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also include first expansion switch valve (603), this first expansion switch valve (603) entrance with The outlet of the indoor condenser (601), the outlet of the first expansion switch valve (603) and institute The entrance connection of outdoor heat exchanger (605) is stated, the first throttle branch road is that the described first expansion switchs The throttling runner of valve (603), the first through-flow branch road are the described first expansion switch valve (603) Through-flow runner.

15. automotive thermal tube according to claim 1 manages system, it is characterised in that described second is logical The 7th switch valve (610) is provided with stream branch road, the 3rd expansion valve is provided with the second throttling branch road (609)。

16. automotive thermal tube according to claim 15 manages system, it is characterised in that the automobile Heat management system is applied to electric automobile, and the automotive thermal tube reason system also includes electromotor cooling system；

The heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, second plate Formula heat exchanger (612) is arranged in the described second through-flow branch road, and second plate type heat exchanger (612) It is arranged on simultaneously in the electromotor cooling system.

17. automotive thermal tube according to claim 16 manages system, it is characterised in that described second The refrigerant inlet (612a) of plate type heat exchanger (612) and the outlet of the outdoor heat exchanger (605) Connection, the refrigerant outlet (612b) of second plate type heat exchanger (612) and the described 7th switch The entrance connection of valve (610).

18. the automotive thermal tube reason system according to claim 16 or 17, it is characterised in that described Electromotor cooling system include connected with second plate type heat exchanger (612) with formed the motor in loop, Motor radiator (613) and the second water pump (614).

19. automotive thermal tube according to claim 1 manages system, it is characterised in that the heat pump is empty Adjusting system also include second expansion switch valve (606), this second expansion switch valve (606) entrance with The outlet of the outdoor heat exchanger (605), the outlet of the second expansion switch valve (606) and institute State the first end connection of the tie point (620) of selective on or off and turned on the selectivity Or the first end connection of the second branch road (621) of cut-off, the second throttling branch road are described second swollen The throttling runner of swollen switch valve (606), the second through-flow branch road are the described second expansion switch valve (606) Through-flow runner.

20. automotive thermal tube according to claim 19 manages system, it is characterised in that the automobile Heat management system is applied to electric automobile, and the automotive thermal tube reason system also includes electromotor cooling system；

The heat pump type air conditioning system also includes：Second plate type heat exchanger (612), wherein, second plate The refrigerant inlet (612a) of formula heat exchanger (612) goes out with the described second expansion switch valve (606) Mouth connection, refrigerant outlet (612b) and the selectivity of second plate type heat exchanger (612) The tie point (620) of on or off first end connection and with the selective on or off The first end connection of second branch road (621), and second plate type heat exchanger (612) is set simultaneously In the electromotor cooling system.

21. automotive thermal tube according to claim 20 manages system, it is characterised in that the motor Cooling system includes motor coolant main line (616), the first motor coolant branch road (617) and second Motor coolant branch road (618), the first end of the motor coolant main line (616) optionally with The first end of the first motor coolant branch road (617) or the second motor coolant branch road (618) First end connection, the second end of the first motor coolant branch road (617) and second motor Second end of coolant branch road (618) connects with the second end of the motor coolant main line (616), Wherein, be in series with the motor coolant main line (616) motor, motor radiator (613) and Second water pump (614), second plate is in series with the first motor coolant branch road (617) Formula heat exchanger (612).

22. 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 pressure of the gas-liquid separator (611) The entrance connection of contracting machine (604), entrance and the indoor evaporator of the gas-liquid separator (611) (602) outlet and connected with the second end of the tie point (620), described first is board-like The refrigerant outlet of heat exchanger (637) is via the battery cooling for reflux branch road and the gas-liquid separator (611) entrance connection.

23. 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) is used for flowing through the room The wind of inner condenser (601) is heated.

24. automotive thermal tube according to claim 23 manages system, it is characterised in that the PTC Heater (619) is arranged in the windward side or leeward side of the indoor condenser.

25. a kind of electric automobile, it is characterised in that including according to any one in claim 1-24 Described automotive thermal tube reason system.