CN209126467U - Electric car temperature regulation system - Google Patents
Electric car temperature regulation system Download PDFInfo
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- CN209126467U CN209126467U CN201821286159.4U CN201821286159U CN209126467U CN 209126467 U CN209126467 U CN 209126467U CN 201821286159 U CN201821286159 U CN 201821286159U CN 209126467 U CN209126467 U CN 209126467U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a kind of electric car temperature regulation system, including motor temperature regulating device, First Heat Exchanger and heat pump air conditioner, motor cooling medium circulation loop in first port and second port the access motor temperature regulating device of First Heat Exchanger, and the first solenoid valve is provided between first port/second port and motor cooling medium circulation loop；First solenoid valve on or off under the control of Vehicle Controller；The cooling medium circulation loop of the third port of First Heat Exchanger and the 4th port access heat pump air conditioner, wherein third port is connect with the compressor first port in heat pump air conditioner, and the 4th port is connected by electronic flow regulating valve and the second port of the vehicle external heat exchanger of heat pump air conditioner；The second port of vehicle external heat exchanger is connect by the first automatically controlled flow valve with the first port of interior heat exchanger；First automatically controlled flow valve and electronic flow the regulating valve on or off under the control of Vehicle Controller.Above scheme reduces the loss of energy, it can be achieved that heat supplement between motor temperature regulating device and heat pump air conditioner.
Description
Technical field
The utility model relates to technical field of new energy, and in particular to a kind of electric car temperature regulation system.
Background technique
In electric car, since motor and battery are required to operation and can play best effect at a suitable temperature
Fruit, if the normal operation too high or too low for temperature for influencing whether them and will be greatly reduced its service life.Therefore electricity
Machine and battery are each equipped with temperature-adjusting device, are injected with liquid medium in temperature-adjusting device, by carrying out to liquid medium
Temperature is adjusted, and so that liquid medium and motor and battery is carried out heat exchange to realize that the temperature to motor and battery is adjusted.
In addition to this, air-conditioning has also been needed to configure in electric car vehicle interior temperature is adjusted, to promote occupant
Ride comfort.With the rapid development of electric vehicle engineering, conventional heat pump air-conditioning quilt is applied among electric car.Traditional heat
Although pumping air-conditioning has more high energy efficiency ratio compared to the heating of PTC used in existing electric car in heating, however, it is deposited
In following problems:
Since heat pump air conditioner and motor temperature regulating device, battery temperature regulating device all work independently of one another, because
In carrying out interior heating or process of refrigerastion, heat production each other is unable to intercommunication for this.For example, in electric automobile during traveling process
In, it is cabin heating that heat pump air conditioner, which is passing through consumption energy, and battery and motor can radiate at runtime, this partial heat
It is not effectively utilized, but direct losses are fallen, and will cause the waste of energy.
Therefore, the new electric car temperature regulation system of one kind is needed to solve problem above.
Utility model content
The utility model aim to solve the problem that capacity usage ratio in electric automobile heat-pump air-conditioning system in the prior art it is low ask skill
Art problem, and then provide a kind of the electric car temperature that heat pump air conditioner, motor temperature regulating device are associated can be regulated and controled
System.
To solve the above problems, the utility model provides a kind of electric car temperature regulation system, including motor temperature tune
Regulating device, First Heat Exchanger and heat pump air conditioner, the first port and second port of the First Heat Exchanger access the motor temperature
The motor cooling medium circulation loop in regulating device is spent, and is recycled in first port/second port and motor cooling medium
The first solenoid valve is provided between circuit；First solenoid valve on or off under the control of Vehicle Controller；Described
The cooling medium circulation loop of the heat pump air conditioner is accessed in the third port of one heat exchanger and the 4th port, wherein third port with
Compressor first port connection in heat pump air conditioner, the 4th port outside the vehicle of electronic flow regulating valve and heat pump air conditioner by exchanging heat
The second port of device connects；The second port of the vehicle external heat exchanger also passes through the of the first automatically controlled flow valve and interior heat exchanger
Single port connection；The electronic flow regulating valve and the first automatically controlled flow valve are connected or are cut under the control of the Vehicle Controller
Only.In above scheme, by First Heat Exchanger, the first solenoid valve by the coolant circulation circuit and heat of motor temperature regulating device
Pump air-conditioning coolant circulation circuit link together, by control the first solenoid valve, the first automatically controlled flow valve conducting or
Cut-off, can be realized the heat supplement between motor temperature regulating device and heat pump air conditioner, the heat that motor distributes can pass through
Motor temperature regulating device is transferred to assisted heat pump air-conditioning heating in air-conditioning heat pump, likewise, heat pump air conditioner also can when freezing
The heat distributed when absorbing motor operation using coolant, thus, it is possible to substantially reduce the loss of energy.
It optionally, further include battery temperature regulating device and the second heat exchange in above-mentioned electric car temperature regulation system
Device: the first port and second port of second heat exchanger access the battery cooling medium in the battery temperature regulating device
In circulation loop；The third port of second heat exchanger and the 4th port are connected to the motor cooling medium circulation loop
In, and in third port/be provided with second solenoid valve between the 4th port and motor cooling medium circulation loop；Described second
Solenoid valve on or off under the control of the Vehicle Controller.In above scheme, pass through the second heat exchanger of setting, the second electricity
Magnet valve can be realized the coolant circulation of the coolant circulation circuit of battery temperature regulating device and motor temperature regulating device
Circuit links together, and by controlling the on or off of second solenoid valve, motor temperature regulating device and heat can be realized
Heat supplement between battery temperature regulating device, motor temperature regulating device can be by heat transfers that motor distributes to battery
Temperature-adjusting device is used to heat for battery pack, so as to improve the heating efficiency of battery pack, further decreases the damage of energy
It loses.
Optionally, above-mentioned electric car temperature regulation system, the cooler in the battery temperature regulating device,
Three ports and the 4th port are accessed in the coolant circulation circuit of the heat pump air conditioner, and third port/the 4th port with
The second automatically controlled flow valve is provided between coolant circulation circuit；Control of the second automatically controlled flow valve in the Vehicle Controller
Make lower on or off.In above scheme, by by the coolant of cooler and heat pump air conditioner in battery temperature regulating device
Circulation loop connection, to realize the refrigerant circulation of the coolant circulation circuit of battery temperature regulating device and heat pump air conditioner
Circuit links together.By controlling the on or off of the second automatically controlled flow valve, it can be realized and utilize heat pump air conditioner generation
The heat that heat is distributed for battery pack heating or using the refrigerant suction battery pack of heat pump air conditioner, so as to improve battery
The efficiency of packet heating or cooling.
Optionally, above-mentioned electric car temperature regulation system, the first port of the cooler and second heat exchange
The second port of device connects.In above scheme, by the way that cooler and the second heat exchanger to be directly linked together, electricity is enabled to
Machine temperature-adjusting device, heat pump air conditioner and battery temperature regulating device three are directly linked together by the second heat exchanger, by
This realizes motor temperature regulating device, heat pump air conditioner, battery temperature regulating device three interconnect, so that
Heat circulates in three devices, improves the utilization efficiency of heat.
Optionally, above-mentioned electric car temperature regulation system, the battery temperature regulating device include double core battery
Cooler；A core in the double core battery cooler is as second heat exchanger, described in another core is used as
Cooler.In above scheme, the function of the second heat exchanger and cooler, Neng Goujian are realized simultaneously using double core battery cooler
Change the structure of whole system.
Optionally, above-mentioned electric car temperature regulation system, the first automatically controlled flow valve and/or described second automatically controlled
Flow valve is electric expansion valve.In above scheme, it can be realized by electric expansion valve to the pressure in refrigerant circulating process
Control while the effect of can be realized cut-off, connected relation that can more accurately in control system between each device.
Electric car temperature regulation system provided by the utility model, by electric car motor temperature regulating device,
At least two in heat pump air conditioner and battery temperature regulating device are attached intercommunication, so as to the energy between realizing
Complementation, high degree improve energy utilization efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electric car temperature regulation system described in the utility model one embodiment；
Fig. 2 and Fig. 3 is the different working condition of electric car temperature regulation system shown in Fig. 1；
Fig. 4 is the structural schematic diagram of electric car temperature regulation system described in another embodiment of the utility model；
Fig. 5 is the structural schematic diagram of electric car temperature regulation system described in another embodiment of the utility model；
Fig. 6 to Figure 19 is respectively the different working condition of electric car temperature regulation system shown in Fig. 5.
Specific embodiment
It is understandable in order to enable the above objects, features, and advantages of the utility model to become apparent, it is right with reference to the accompanying drawing
Specific embodiment of the present utility model is described in detail.In the description of the present invention, it should be noted that term
" first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Unless otherwise
Specific regulation and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, dotted line in Figure of description
It is to indicate not turning on, no coolant flows through.
Embodiment 1
The present embodiment provides a kind of electric car temperature regulation system, including motor temperature regulating device and heat pump air conditioner,
As shown in Figure 1, wherein including water pump 18, electronic control unit 25, motor 24,19 heat pump of low-temperature radiator in motor temperature regulating device
System includes compressor 1, and four-way valve 2, vehicle external heat exchanger 3, fan 4, the first automatically controlled flow valve is (by solenoid valve 5 in the present embodiment
The first automatically controlled flow valve is composed in series with heating power expansion valve 6), PTC air heater 9, interior heat exchanger 10, fan 11, gas-liquid
Separator 26；The working principle of the above all parts is identical with the prior art, and no longer it is described in detail in the present embodiment.
Such as Fig. 1, the scheme in the present embodiment further includes First Heat Exchanger 20 on the basis of above structure, and described first
The first port and second port of heat exchanger 20 access the motor cooling medium circulation loop in the motor temperature regulating device
In, and the first solenoid valve 22 is provided between first port/second port and motor cooling medium circulation loop；Described
The controlled terminal of one solenoid valve 22 is connect with the output end of the Vehicle Controller, under the control of the Vehicle Controller conducting or
Cut-off；1 first port of compressor connection in the third port and heat pump air conditioner of the First Heat Exchanger 20；The heat pump air conditioner
In the second port of vehicle external heat exchanger 3 connected by the first port of solenoid valve 5 and heating power expansion valve 6 and interior heat exchanger 10
It connects；The controlled terminal of the solenoid valve 5 and heating power expansion valve 6 is connect with the output end of the Vehicle Controller, in the vehicle-mounted control
On or off under the control of device processed；4th port of the First Heat Exchanger 20 passes through electronic flow regulating valve 21 and the vehicle
The second port of external heat exchanger 3 connects；The controlled terminal of the electronic flow regulating valve 21 and the output end of the Vehicle Controller
Connection, the on or off under the control of the Vehicle Controller.
By above structure, First Heat Exchanger 20 can be carried out with the motor coolant liquid in motor cooling medium circulation loop
Heat exchange, at the same First Heat Exchanger 20 can also be connect with the refrigerant circulation loop in heat pump air conditioner and heat pump air conditioner in
Refrigerant vehicle external heat exchanger 3, interior heat exchanger 10 are the same and heat exchange occurs for refrigerant.Such as: as shown in Fig. 2, working as solenoid valve 5
Be turned off with expansion valve 6, the first solenoid valve 22 conducting, electronic flow regulating valve 21 be connected when, which can be used for outside for vehicle
Heat exchanger 3 defrosts.At this point, the high-temperature high-pressure refrigerant compressed via compressor 1 enters by the port a of four-way valve 2, then pass through
The port b outflow for crossing four-way valve 2, into vehicle external heat exchanger 3, defrosts to vehicle external heat exchanger 3, then refrigerant passes through electronics
Enter First Heat Exchanger 20 after the reducing pressure by regulating flow of flow control valve 21, the heat of refrigerant suction motor coolant liquid becomes low pressure mistake
Hot steam is subsequently into compressor 1.As shown in figure 3, enter via the refrigerant that compressor 1 compresses from the port a of four-way valve 2,
It is flowed out from d mouthfuls, the air of the heating of heat exchanger 10 into the car into the car is condensed into subcooled liquid after refrigerant heat dissipation, passes through
Expansion valve 6 is depressured the refrigerant at low-temp low-pressure, then flows into vehicle external heat exchanger 3 by solenoid valve 5, absorbs the air heat outside vehicle
Then amount enters by the port b of four-way valve 2, from the port c, outflow enters gas-liquid separator 26, real subsequently into compressor 1
Now heating circulation；Another part refrigerant passes through electronic flow regulating valve 21, into First Heat Exchanger 20, absorbs motor coolant liquid
Heat, become low-pressure superheated steam, be then return to compressor 1, to compressor 1 carry out tonifying Qi.Therefore it can use motor production
Raw heat realizes the function of Gas-supplying enthalpy-increasing.Motor coolant liquid is under the action of water pump 18 in motor cooling medium circulation loop
It circulates, coolant liquid radiates to refrigerant in First Heat Exchanger 20, and refrigerant heat absorption evaporation, coolant temperature reduces, cold
But liquid passes through low-temperature radiator 19 and is further cooled down, and when coolant liquid flows through electronic control unit 25 and motor 24, absorbs heat
Amount realizes the cooling to electric control.
It should be noted that can wirelessly be passed in fact between Vehicle Controller and the controlled terminal of above-mentioned each electric control valve
Defeated control signal.And the key triggering that the control signal in Vehicle Controller can correspond directly to driver is realized, such as empty
The key at control switch is adjusted, can be obtained shown in Fig. 2 as a result, being entered by key by entering defrosting mode by key control
Gas-supplying enthalpy-increasing mode can enter result shown in Fig. 3 etc..More than, by controlling the first solenoid valve 22, electronic flow regulating valve
31, the on or off of the first automatically controlled flow valve, can be realized the heat between motor temperature regulating device and heat pump air conditioner
Supplement, the heat that motor distributes can be transferred to assisted heat pump air-conditioning heating in air-conditioning heat pump by motor temperature regulating device,
The heat distributed when likewise, also motor operation can be absorbed using coolant when heat pump air conditioner freezes, thus, it is possible to drop significantly
The loss of low energy.
Embodiment 2
In the present embodiment, as shown in figure 4, electric car temperature regulation system further includes battery temperature regulating device and second
Heat exchanger 13 includes water pump 15, battery cooler 12, PTC water-warming heater 17, battery pack 16 in battery temperature regulating device；
The first port and second port of second heat exchanger 13 access the battery cooling medium in the battery temperature regulating device
In circulation loop；The third port of second heat exchanger 13 and the 4th port are connected to the motor cooling medium circulation loop
In, and in third port/be provided with second solenoid valve 23 between the 4th port and motor cooling medium circulation loop；Described
The controlled terminal of two solenoid valves 23 is connect with the output end of the Vehicle Controller, is connected or is cut under the control of the controller
Only.It can use motor heat production wherein as battery pack heating, the cut-off of the first solenoid valve 22, electronic flow regulating valve can be enabled at this time
21 cut-offs, the first automatically controlled flow valve cut-off, second solenoid valve 23 are connected.In motor temperature regulating device, coolant liquid is in water pump
Entering electronic control unit 25, motor 24 under the action of 18, coolant liquid absorbs the heat of motor 24 and automatically controlled 25, and temperature increases, and first
Solenoid valve 22 is closed, and coolant liquid enters the second heat exchanger 13, in the second heat exchanger 13, high-temperature electric machine by second solenoid valve 23
Coolant liquid heats battery coolant liquid, then motor coolant liquid flows back to water pump 18 to battery coolant liquid heat release.In battery cooling system
In, battery coolant liquid circulates in battery pouring-basket cooling system under the action of water pump 15, and in heat exchanger 13, battery is cooling
Liquid absorbs motor coolant liquid heat, and battery coolant temperature increases, and battery coolant liquid passes through battery pack 16, to battery pack heat release,
Heat battery.
It can be realized by the second heat exchanger 13 of setting, second solenoid valve 23 and follow the coolant of battery temperature regulating device
The coolant circulation circuit of loop back path and motor temperature regulating device links together, by the conducting for controlling second solenoid valve 23
Or cut-off, the heat supplement between motor temperature regulating device and thermal cell temperature-adjusting device, motor temperature can be realized
The heat transfer that motor distributes can be used to heat for battery pack by regulating device to battery temperature regulating device, so as to mention
The heating efficiency of high battery pack further decreases the loss of energy.
Further, as shown in figure 5, cooler 12 in the battery temperature regulating device, third port and the 4th
Port is accessed in the coolant circulation circuit of the heat pump air conditioner, and is returned in third port/the 4th port and coolant circulation
The second automatically controlled flow valve is provided between road, the second automatically controlled flow valve described in figure is concatenated by solenoid valve 7 and expansion valve 8
It arrives；The output end of the controlled terminal and Vehicle Controller of solenoid valve 7 and expansion valve 8 connects, under the control of the Vehicle Controller
On or off.Battery pack can be heated or cooled using heat pump air conditioner through the above scheme, when the first solenoid valve 22 ends,
It, can be by when the cut-off of second solenoid valve 23, the cut-off of electronic flow regulating valve 22, the conducting of solenoid valve 5,7 and expansion valve 6,8 are connected
It works according to following process:
Under heating mode: entering via the refrigerant that compressor 1 compresses from the port a of four-way valve 2, flowed out from d mouthfuls, one
Divide heat exchanger 10 into the car, heats air into the car, subcooled liquid is condensed into after refrigerant heat dissipation, by expansion valve 6
It is depressured into the refrigerant of low-temp low-pressure, then flows into vehicle external heat exchanger 3 by solenoid valve 5, absorbs the atmospheric heat outside vehicle, then
Enter by the port b of four-way valve 2, from the port c, outflow enters gas-liquid separator 26, subsequently into compressor 1, realizes that heating follows
Ring；Another part refrigerant enters cooler 12, and refrigerant is condensed into supercooled liquid after refrigerant heat dissipation to battery coolant liquid heat release
Then body flows into vehicle external heat exchanger 3 by solenoid valve 7, then passes through by the decompression of expansion valve 8 at the refrigerant of low-temp low-pressure
The port b of four-way valve 2 enters, and from the port c, outflow enters gas-liquid separator 26, subsequently into compressor 1.Battery coolant liquid is in water
It is circulated in battery cooling medium circulation loop under the action of pump 15, in cooler 12, battery coolant liquid absorbs refrigeration
Agent heat, coolant temperature increase, and coolant liquid passes through battery pack 16, to battery pack heat release, heat battery.At this point, electronic flow
Regulating valve 21 is closed, and in battery pack temperature-adjusting device, PTC water-warming heater 17 can not work.
Under refrigeration mode: entering through the compressed high-temperature high-pressure refrigerant of compressor 1 by the port a of four-way valve 2, then
It is flowed out by the port b of four-way valve 2, into vehicle external heat exchanger 3, then a part enters solenoid valve 7, then passes through expansion valve 8
Throttling become the refrigerant of low-pressure low-temperature, into cooler 12, refrigerant absorbs battery pack coolant liquid in cooler 12
Heat cools down battery pack, then becomes low-pressure superheated steam, into the port d of four-way valve 2, passes through the end of four-way valve
Mouth c outflow enters gas-liquid separator 26, is then return to compressor 1.Battery coolant is cooling in battery under the action of water pump 15
It is circulated in agent circulation loop, battery coolant liquid radiates to refrigerant in cooler 12, and coolant temperature reduces, coolant liquid
By battery pack 16, battery pack heat is absorbed, realizes the cooling to battery.At this point, the first solenoid valve 22 and electronic flow are adjusted
Valve 21 is turned off, and in battery pouring-basket cooling system, PTC water-warming heater 17 can not work.
In above scheme, by the way that the coolant circulation of cooler 12 and heat pump air conditioner in battery temperature regulating device is returned
Road connection, connects the refrigerant circulation loop of the coolant circulation circuit of battery temperature regulating device and heat pump air conditioner to realize
It is connected together.By controlling the on or off of solenoid valve 7 and expansion valve 8, the heat generated using heat pump air conditioner can be realized
The heat distributed for battery pack heating or using the refrigerant suction battery pack of heat pump air conditioner, is added so as to improve battery pack
Heat or the efficiency of cooling.
On the basis of above scheme, preferably enable the first port of cooler 12 directly with second heat exchanger 13
Two-port netwerk connection.By the way that cooler and the second heat exchanger to be directly linked together, motor temperature regulating device, heat are enabled to
Pump air-conditioning is directly linked together with battery temperature regulating device three by the second heat exchanger, it is thus achieved that motor temperature tune
Regulating device, heat pump air conditioner, battery temperature regulating device three interconnect so that heat in three devices into
Row circulation, improves the utilization efficiency of heat.On this basis, it is cooling as battery to can choose double core battery cooler 14
Device；A core in the double core battery cooler 14 is as second heat exchanger 13, described in another core is used as
Cooler 12.In above scheme, the function of the second heat exchanger and cooler, energy are realized simultaneously using double core battery cooler 14
Enough simplify the structure of whole system.In addition, in above scheme, in the first automatically controlled flow, the second automatically controlled flow valve
Any one can choose electric expansion valve realization, can be realized by electric expansion valve to the pressure control in refrigerant circulating process
System while the effect of can be realized cut-off, connected relation that can more accurately in control system between each device.
Embodiment 3
The present embodiment provides the control methods of more than one electric car temperature regulation systems, comprising: Vehicle Controller root
According to temperature and motor temperature in ambient temperature, battery temperature, cabin, heat pump air conditioner, motor temperature regulating device, electricity are controlled
Pond temperature-adjusting device is run in cooling or heating mode respectively；The Vehicle Controller responds demand model signal,
The output of its output end and the control signal of the demand model Signal Matching are adjusted with controlling the first solenoid valve and/or electronic flow
Valve and/or second solenoid valve and/or the first automatically controlled flow valve and/or the second automatically controlled flow valve on or off.Vehicle Controller
As the control axis of electric car, heat pump air conditioner, motor temperature regulating device and battery temperature regulating device can be controlled
Start and stop.Meanwhile Vehicle Controller is able to respond externally input demand model signal, or according to the biography being arranged in electric car
Demand model signal, vehicle-mounted control are obtained after the status data analytical Calculation for the electric car that sensor, monitoring device etc. detect
Device according to demand mode signal be capable of determining that between three devices should how intercommunication can satisfy demand, to control each
Solenoid valve, automatically controlled flow valve state can satisfy demand corresponding to demand model signal, to directly control each electromagnetism
Valve and automatically controlled flow valve events.It communicates with one another due to can be realized each other between three devices, so as to need
The heat that motor and/or battery distribute is collected when wanting, heat pump air-conditioning uses, is effectively saved energy consumption, improves energy
Utilization efficiency.The mode that can be worked electric car temperature regulation system respectively with reference to the accompanying drawing is described in detail.
Mode 1: vehicle-mounted when the heat pump air conditioner is under heating mode and the demand model signal represents defrosting mode
The output end output defrosting signal of controller；Corresponding to system shown in FIG. 1, the controlled terminal of the first solenoid valve 22 therein is received
It is connected after to the defrosting signal；The controlled terminal of electronic flow regulating valve 21 receives the defrosting signal trailing edge heat pump air conditioner
Heat the conducting of circuit direction；Cut-off is after the controlled terminal of first automatically controlled flow valve receives the defrosting signal to get to shown in Fig. 2
Result；Corresponding to system shown in Fig. 4, the second automatically controlled flow valve cut-off is also controlled, and is corresponded to shown in Fig. 5
System will also control the second automatically controlled flow valve cut-off, second solenoid valve is ended to get control result as shown in FIG. 6 is arrived.
As shown, the high-temperature high-pressure refrigerant compressed via compressor 1 enters by the port a of four-way valve 2, then pass through
The port b outflow for crossing four-way valve 2, into vehicle external heat exchanger 3, defrosts to vehicle external heat exchanger 3, then refrigerant passes through electronics
The reducing pressure by regulating flow of flow control valve 21, into First Heat Exchanger 20, the heat of refrigerant suction motor coolant liquid becomes low pressure mistake
Hot steam, into compressor 1.When the refrigerant in heat pump air conditioner is the defrosting of vehicle external heat exchanger, by electronic flow regulating valve 21
Enter in First Heat Exchanger 20 afterwards, the heat that refrigerant suction motor distributes becomes low-pressure superheated steam, and it is empty to enter heat pump later
In the compressor 1 of tune, so that improving the suction temperature of compressor in defrost mode, liquid hit phenomenon is avoided the occurrence of.
Mode 2: heating while Gas-supplying enthalpy-increasing under winter normal environment
When the heat pump air conditioner is under heating mode and the demand model signal represents Gas-supplying enthalpy-increasing mode, vehicle-mounted control
The output end of device processed exports Gas-supplying enthalpy-increasing signal；In structure as shown in Figure 1, the controlled terminal of the first solenoid valve 22 receives described
It is connected after Gas-supplying enthalpy-increasing signal；The controlled terminal of electronic flow regulating valve 21 receives the Gas-supplying enthalpy-increasing signal trailing edge heat pump air conditioner
Heating circuit direction conducting；The controlled terminal of solenoid valve 5 and expansion valve 6 receives the Gas-supplying enthalpy-increasing signal trailing edge heat pump air conditioner
Heating circuit direction conducting to get arrive result shown in Fig. 3.And for structure shown in Fig. 4, it is also necessary to further control
The cut-off of two solenoid valves 23；And for structure shown in fig. 5, it is also necessary to further control solenoid valve 7 and the cut-off of expansion valve 8, second
Solenoid valve 23 ends；Obtain result shown in Fig. 7.Such as figure, the refrigerant that compresses via compressor 1 is from the port a of four-way valve 2
Into from d mouthfuls of outflows, a part of heat exchanger 10 into the car are heated air into the car, were condensed into after refrigerant heat dissipation
Then cold liquid flows into vehicle external heat exchanger 3 by solenoid valve 5 by the decompression of expansion valve 6 at the refrigerant of low-temp low-pressure, absorb
Atmospheric heat outside vehicle, then by four-way valve 2 the port b enter, from the port c outflow enter gas-liquid separator 26, then into
Enter compressor 1, realizes heating circulation；Another part refrigerant passes through electronic flow regulating valve 21, into First Heat Exchanger 20, inhales
The heat for receiving motor coolant liquid, becomes low-pressure superheated steam, is then return to compressor, carries out tonifying Qi to compressor.Motor is cooling
Liquid circulates in motor cooling medium circulation loop under the action of water pump 18, and coolant liquid is to system in First Heat Exchanger 20
Coolant heat, refrigerant heat absorption evaporation, coolant temperature reduce, coolant liquid pass through low-temperature radiator 19 carry out further it is cold
But, when coolant liquid flows through electronic control unit 25 and motor 24, heat is absorbed, realizes the cooling to motor 24 and electronic control unit 25.
In above scheme, when vehicle external environment extremely low (- 10 DEG C -0 DEG C), compressor air suction temperature is low, in order to meet system
Heat but high-temperature exhaust air must be kept, cause the heating performance of heat pump air conditioner poor, need Gas-supplying enthalpy-increasing, reduce under big compression ratio operating condition
Pressure at expulsion, the heating needs under low temperature environment are met with this.In this case, in heat pump air conditioner, by compressor
The interior air of compressed refrigerant a part heat exchanger heating into the car, another part is after electronic flow regulating valve
Into in First Heat Exchanger 20, absorbing in motor temperature regulating device becomes low-pressure superheated steam after the heat of coolant, then
It returns to compressor 1 and tonifying Qi is carried out to compressor 1, the tonifying Qi that the heat that motor distributes in the above process can be used for compressor increases
Enthalpy improves the heating performance of heat pump air conditioner.
Mode 3: battery pack heating is individually for by motor heat production
The heat pump air conditioner is not opened and the demand model signal represents and needs to be individually for battery pack by motor heat production to add
When hot, the output end of the Vehicle Controller exports the first battery pack heating signal；In structure as shown in Figure 4, the first electromagnetism
The controlled terminal of the controlled terminal of valve 22, the controlled terminal of electronic flow regulating valve 21 and the first automatically controlled flow valve receives first electricity
It is turned off after the packet heating signal of pond；The controlled terminal of second solenoid valve 23 receives after the first battery pack heating signal along motor
Thermostatic heat absorption circuit direction conducting.In structure shown in Fig. 5, it is also necessary to control the second automatically controlled flow valve and cut
Only, structure shown in Fig. 8 is obtained.
As shown in figure 8, coolant liquid enters electronic control unit 25 under the action of water pump 18 in motor temperature regulating device,
Motor 24, coolant liquid absorb the heat of electric control, and temperature increases, and the first solenoid valve 22 is closed, and coolant liquid passes through the second electromagnetism
Valve 23 enters the second heat exchanger 13, and in the second heat exchanger 13, high-temperature electric machine coolant liquid heats battery to battery coolant liquid heat release
Coolant liquid, then motor coolant liquid flows back to water pump 18.In battery temperature regulating device, effect of the battery coolant liquid in water pump 15
Under circulated in battery pouring-basket cooling system, in the second heat exchanger 13, battery coolant liquid absorb motor coolant liquid heat, electricity
Pond coolant temperature increases, and battery coolant liquid passes through battery pack 16, to battery pack heat release, heats battery.
In above scheme, in motor temperature regulating device, coolant can absorb heat that motor distributes to which temperature is promoted,
In the case where the first solenoid valve 22 is closed, second solenoid valve 23 is connected, coolant in motor coolant circulating system can be from
Motor temperature regulating device enters battery temperature regulating device, and motor coolant can discharge heat for battery packet,
Therefore it can be in this scenario that battery pack is heated by recycling motor heat, reduce energy loss.
Mode 4: heat pump air conditioner heat production is individually for battery pack heating
The heat pump air conditioner is in heating mode and demand model signal representative needs are independent by heat pump air conditioner heat production
When heating for battery pack, the output end of the Vehicle Controller exports the second battery pack heating signal；In structure shown in fig. 5,
The controlled terminal of first solenoid valve 22, the controlled terminal of electronic flow regulating valve 21, second solenoid valve 23 5 and of controlled terminal and solenoid valve
The controlled terminal of expansion valve 6 is turned off after receiving the second battery pack heating signal；The controlled terminal of solenoid valve 7 and expansion valve 8
It is connected after receiving the second battery pack heating signal along the heating circuit direction of heat pump air conditioner, obtained result such as Fig. 9 institute
Show.
Enter through the compressed high-temperature high-pressure refrigerant of compressor 1 by the port a of four-way valve 2, then passes through four-way valve 2
Port d outflow, into cooler 12, refrigerant is condensed into subcooled liquid after refrigerant heat dissipation, passes through to battery coolant liquid heat release
The decompression of expansion valve 8 is crossed into the refrigerant of low-temp low-pressure, then passes through solenoid valve 7, into vehicle external heat exchanger 3, absorbs the sky outside vehicle
Then gas heat enters by the port b of four-way valve 2, from the port c, outflow enters gas-liquid separator 26, subsequently into compressor
1.Battery coolant circulates in battery coolant circulating system under the action of water pump 15, in cooler 12, battery
Coolant liquid absorbs refrigerant heat, and coolant temperature increases, and coolant liquid passes through battery pack 16, to battery pack heat release, heats battery.
In battery pack temperature-adjusting device, PTC water-warming heater 17 does not work.
Mode 5: (- 30 DEG C) battery pack heats under most rugged surrounding temperature
The heat pump air conditioner is in heating mode and the demand model signal represents and needs quickly to be added for battery pack
When hot, the output end of the Vehicle Controller exports third battery pack heating signal；Structure as shown in Figure 5, the first solenoid valve
The controlled terminal of 22 controlled terminal, the controlled terminal of electronic flow regulating valve 21 and the first automatically controlled flow valve receives the third battery
It is turned off after packet heating signal；The controlled terminal of second solenoid valve 23 receives after the first battery pack heating signal along motor temperature
Spend the heat absorption circuit direction conducting of regulating device；The controlled terminal of second automatically controlled flow valve receives the second battery pack heating letter
It is connected after number along the heating circuit direction of heat pump air conditioner, obtains structure shown in Fig. 10.
As shown in Figure 10, in battery core temperature as environment at -30 DEG C when, battery core cannot discharge at this time, on electric car
When electric, motor temperature regulating device and heat pump air conditioner utilize motor heat and heat pump air conditioner using the electricity operation of battery at this time
Battery pack packet is heated, has been described in detail before detailed process, is no longer described herein.In battery temperature regulating device, when
When PTC water-warming heater 17 reaches the temperature that can be discharged, while also starting PTC water-warming heater 17 adds battery pack
Heat.When battery core temperature reaches -15 DEG C, battery core can start to discharge.
In above scheme, it is suitable under most rugged surrounding temperature (- 30 DEG C), if electric car is parked under open-air atmosphere
Long period needs to carry out heating operation to battery pack before at this time running electric car.Since environment temperature is extremely low, institute
To rely on the ptc heater heating battery pack in battery temperature regulating device to need long period (- 30 minutes 20 minutes) merely
Battery pack can be heated to the temperature that can be operated normally, and can be realized through the above scheme by motor heat production and heat pump
Air-conditioning heat production is heated after combining for battery pack, can be improved the heating efficiency of battery pack, saves preheating time.
Mode 6: heat pump air conditioner heats the heating of winter car to battery pack simultaneously
The heat pump air conditioner is in heating mode and demand model signal representative need to heat in cabin air and
When battery pack, output end output the first heating signal of the Vehicle Controller；In structure as shown in Figure 5, the first solenoid valve
The controlled terminal of 22 controlled terminal, the controlled terminal of electronic flow regulating valve 21 and second solenoid valve 23 receives the first heating letter
It is turned off after number；The controlled terminal of solenoid valve 5,7 and expansion valve 6,8 receives after the second battery pack heating signal along heat pump sky
The heating circuit direction of tune is connected, and obtains structure shown in Figure 11.
Via compressor 1 compress refrigerant from the port a of four-way valve 2 enter, from d mouthful outflows, part of refrigerant into
Enter interior heat exchanger 10, heats air into the car, be condensed into subcooled liquid after refrigerant heat dissipation, be depressured by expansion valve 6
At the refrigerant of low-temp low-pressure, vehicle external heat exchanger 3 then is flowed by solenoid valve 5, the atmospheric heat outside vehicle is absorbed, then passes through
The port b of four-way valve 2 enters, and from the port c, outflow enters gas-liquid separator 26, subsequently into compressor 1, realizes heating circulation；
Another part refrigerant enters cooler 12, and refrigerant is condensed into subcooled liquid after refrigerant heat dissipation to battery coolant liquid heat release,
By the decompression of expansion valve 8 at the refrigerant of low-temp low-pressure, vehicle external heat exchanger 3 then is flowed by solenoid valve 7, then passes through four-way
The port b of valve 2 enters, and from the port c, outflow enters gas-liquid separator 26, subsequently into compressor 1.Battery coolant liquid is in water pump 15
Under the action of circulated in battery pouring-basket cooling system, in cooler 12, battery coolant liquid absorbs refrigerant heat, cooling
Liquid temperature increases, and coolant liquid passes through battery pack 16, to battery pack heat release, heats battery.
In above scheme, since the coolant circulation circuit of battery temperature regulating device and heat pump air conditioner is connected to one
It rises, therefore heat pump air conditioner heat production can be that battery pack is heated while being heated for cabin, thus guaranteeing cabin
The heating speed of battery pack is improved under the premise of interior air themperature.
Mode 7: heat pump air conditioner is heated to battery pack simultaneously for Gas-supplying enthalpy-increasing heating under low ambient temperature in winter
In structure as shown in Figure 5, the heat pump air conditioner is in heating mode and the demand model signal is represented and needed
When Gas-supplying enthalpy-increasing needs heat pump air conditioner heat production to heat for battery pack simultaneously, the second heating of output end output of the Vehicle Controller
Signal；The controlled terminal of first solenoid valve 22, the controlled terminal of electronic flow regulating valve 21 receive the second heating signal trailing edge
The heat absorption circuit direction of motor temperature regulating device is connected；The controlled terminal of second solenoid valve 23 receives the second heating signal
After end；After the controlled terminal of solenoid valve 5,7 and expansion valve 6,8 receives the second heating signal, along the heating of heat pump air conditioner
The conducting of circuit direction, obtained structure are as shown in figure 12:
Via compressor 1 compress refrigerant from the port a of four-way valve 2 enter, from d mouthful outflows, part of refrigerant into
Enter interior heat exchanger 10, heats air into the car, be condensed into subcooled liquid after refrigerant heat dissipation, be depressured by expansion valve 6
At the refrigerant of low-temp low-pressure, then pass through solenoid valve 5；Another part refrigerant enters heat exchanger 12, and refrigerant is cold to battery
But liquid heat release is condensed into subcooled liquid after refrigerant heat dissipation, by the decompression of expansion valve 8 at the refrigerant of low-temp low-pressure, then passes through
Cross solenoid valve 7.At this point, two strands of refrigerants converge, after converging, part of refrigerant enters vehicle external heat exchanger 3, absorbs the sky outside vehicle
Then gas heat enters by the port b of four-way valve 2, from the port c, outflow enters gas-liquid separator 26, subsequently into compressor
1；Another part refrigerant passes through electronic flow regulating valve 21, into First Heat Exchanger 20, absorbs the heat of motor coolant liquid, becomes
At low-pressure superheated steam, it is then return to compressor 1, tonifying Qi is carried out to compressor 1.Battery coolant under the action of water pump 15
It is circulated in battery coolant circulation circuit, in cooler 12, battery coolant liquid absorbs refrigerant heat, coolant temperature
It increases, coolant liquid passes through battery pack 16, to battery pack heat release, heats battery.Motor coolant is under the action of water pump 18 in electricity
It circulating in machine coolant circulation circuit, coolant liquid radiates to refrigerant in First Heat Exchanger 20, refrigerant heat absorption evaporation,
Coolant temperature reduces, and coolant liquid passes through low-temperature radiator 19 and further cooled down, when coolant liquid flows through electronic control unit 25
When with motor 24, heat is absorbed, realizes the cooling to motor 24, electronic control unit.At this point, in battery temperature regulating device, PTC
Water-warming heater 17 does not work.
By controlling the state of each solenoid valve and automatically controlled flow valve, motor temperature regulating device, heat pump air conditioner are enabled to
Intercommunication and battery temperature regulating device intercommunication, so as to realize the Gas-supplying enthalpy-increasing under motivation low ambient temperature while utilizing heat pump empty
It is adjusted to battery pack heating.
Mode 8: Gas-supplying enthalpy-increasing heating motor heat production simultaneously is heated to battery pack under low ambient temperature in winter
Structure as shown in Figure 5, the heat pump air conditioner is in heating mode and demand model signal representative needs to mend
When gas increasing enthalpy needs motor heat production to heat for battery pack simultaneously, the output end output third of the Vehicle Controller heats signal；
After the controlled terminal of the controlled terminal of first solenoid valve 22 receives the third heating signal, along the heat absorption of motor temperature regulating device
The conducting of circuit direction；The controlled terminal of the controlled terminal of electronic flow regulating valve 21, solenoid valve 5 and expansion valve 6 receives the third
After heating signal, be connected along the heating circuit direction of heat pump air conditioner；The controlled terminal of second solenoid valve 23 receives the third system
After thermal signal, be connected along the heat absorption circuit direction of motor temperature regulating device；The controlled terminal of solenoid valve 7 and expansion valve 8 receives
End after the third heating signal, obtained structure is as shown in figure 13: heat pump air conditioner only heats in-vehicle air, air-conditioning
It is not heated for battery pack, interior heating efficiency can be improved.Simultaneously as the first solenoid valve 22 and second solenoid valve 23 are beaten
Open, motor 24, electronic control unit 25 heat by the second heat exchanger 13 be battery pack 16 heat, be effectively utilized electric control
Waste heat to carry out heat management to battery pack.
In above scheme, control heat pump air conditioner and the intercommunication of motor temperature regulating device, motor temperature regulating device and battery
Temperature-adjusting device intercommunication can assist realizing Gas-supplying enthalpy-increasing using motor heat production, and heat pump air conditioner can be only to the sky in cabin
Gas is heated without heating to battery pack, and interior heating efficiency is improved.
Mode 9: heat pump air conditioner is individually for battery pack cooling
The heat pump air conditioner is in refrigeration mode and demand model signal representative needs heat pump air conditioner while being independent
When cooling down for battery pack, the output end of the Vehicle Controller exports the first cooling signals；By taking structure shown in fig. 5 as an example, the
The controlled terminal of one solenoid valve 22, the controlled terminal of electronic flow regulating valve 21, the controlled terminal of second solenoid valve 23, solenoid valve 5 and swollen
The controlled terminal of swollen valve 6 is turned off after receiving first cooling signals；The controlled terminal of solenoid valve 7 and expansion valve 8 receives institute
It after stating the first cooling signals, is connected along the refrigerating circuit direction of heat pump air conditioner, obtained structure is as shown in figure 14: through compressor 1
Compressed high-temperature high-pressure refrigerant enters by the port a of four-way valve 2, then flows out by the port b of four-way valve 2, enters
Then vehicle external heat exchanger 3 becomes the refrigerant of low-pressure low-temperature subsequently into solenoid valve 7 by the throttling of expansion valve 8, entrance is cold
But device 12, refrigerant absorb the heat of battery pack coolant liquid in cooler 12, cool down to battery pack, then become low pressure
Superheated steam enters gas-liquid separator 26 by the port c outflow of four-way valve, is then return to pressure into the port d of four-way valve 2
Contracting machine 1.Battery coolant liquid circulates in battery temperature regulating device under the action of water pump 15, the battery in cooler 12
Coolant liquid radiates to refrigerant, and coolant temperature reduces, and coolant liquid passes through battery pack 16, absorbs battery pack heat, realizes to electricity
The cooling in pond.At this point, PTC water-warming heater 17 does not work in battery temperature regulating device.
In above scheme, heat pump air conditioner and battery pack temperature adjust dress intercommunication, by heat pump air conditioner be individually for battery pack into
Row cooling can be improved the cooling rate of battery pack, shorten temperature fall time.
Mode 10: summer car refrigeration simultaneously cools down battery pack
The heat pump air conditioner is in refrigeration mode and demand model signal representative needs heat pump air conditioner while being cabin
When air and battery pack cool down, the output end of the Vehicle Controller exports the second cooling signals, for structure shown in fig. 5,
Control the controlled terminal of the first solenoid valve 22, the controlled terminal of electronic flow regulating valve 21, second solenoid valve 23 controlled terminal receive
It is turned off after second cooling signals；The controlled terminal of the controlled terminal of solenoid valve 5 and expansion valve 6, solenoid valve 7 and expansion valve 8
After controlled terminal receives second cooling signals, be connected along the refrigerating circuit direction of heat pump air conditioner.Obtained structure such as Figure 15
It is shown: to enter through the compressed high-temperature high-pressure refrigerant of compressor 1 by the port a of four-way valve 2, then by four-way valve 2
Port b outflow, into vehicle external heat exchanger 3, part of refrigerant enters solenoid valve 5 later, then becomes by the throttling of expansion valve 6
At the refrigerant of low-pressure low-temperature, heat exchanger 10 into the car, to air cooling-down into the car, refrigerant suction is empty into the car
The heat of gas becomes low-pressure superheated steam, subsequently into the port d of four-way valve 2, enters gas-liquid by the port c outflow of four-way valve
Separator 26 is then return to compressor 1, realizes refrigeration cycle；Another part refrigerant enters solenoid valve 7, then by expansion
The throttling of valve 8 becomes the refrigerant of low-pressure low-temperature, and into cooler 12, refrigerant absorbs battery pack coolant liquid in cooler 12
Heat, battery pack is cooled down, then becomes low-pressure superheated steam, and is converged by the superheated steam of interior heat exchanger 10
It closes, flows back to compressor 1 together.Wherein, battery coolant liquid circulates in battery pouring-basket cooling system under the action of water pump 15,
Battery coolant liquid radiates to refrigerant in battery cooler 12, and coolant temperature reduces, and coolant liquid passes through battery pack 16, absorbs
Battery pack heat realizes the cooling to battery.At this point, PTC air heater 9 does not work, in battery temperature in heat pump air conditioner
In regulating device, PTC water-warming heater 17 does not work.
In above scheme, heat pump air conditioner can not only freeze to air in cabin, additionally it is possible to freeze for battery pack,
Auxiliary reduces the temperature of battery pack while guaranteeing passenger comfort level, improves the working efficiency of battery pack.
Mode 11: (45 DEG C or more) motor radiating and interior refrigeration and battery pack are cooling under summer severe temperatures
The heat pump air conditioner is in refrigeration mode and demand model signal representative needs heat pump air conditioner while being cabin
When air, motor and battery pack cool down, the output end of the Vehicle Controller exports third cooling signals；According to shown in fig. 5
Structure, the controlled terminal of the first solenoid valve 22 receive after the third cooling signals along the heat absorption side of motor coolant circulation circuit
To conducting；The controlled terminal of the controlled terminal of electronic flow regulating valve 21, solenoid valve 5,7 and expansion valve 6,8 receives the third system
After cold signal, be connected along the refrigerating circuit direction of heat pump air conditioner；The controlled terminal of second solenoid valve 23 receives the third refrigeration
End after signal.Obtain structure as shown in figure 16: under hot area, summer bad weather, temperature up to 45 DEG C or more, this
When car need to freeze, battery pack needs to cool down, and in electromotor cooling system, low-temperature radiator may under such severe temperature
The temperature of motor coolant liquid can not be reduced to design object value, 25 inlet coolant temperature of electronic control unit is caused to be higher than design
Value, at this moment motor 24,25 surface of solids temperature of electronic control unit can be more than design objective, influence safety and vehicle performance.Pass through figure
Structure shown in 16, motor coolant can further decrease temperature by the cooling of First Heat Exchanger 20, solve in superhigh temperature
The problem of electromotor cooling system cooling capacity deficiency under weather.As shown in figure 16, heat pump air conditioner runs refrigeration cycle, refrigerant warp
It crosses after vehicle external heat exchanger 3, is divided into three strands, respectively into second solenoid valve 23, solenoid valve 7 and automatically controlled flow control valve 21 is crossed, divide
It Yong Yu not interior refrigeration, battery pack cooling and motor cooling.In above scheme, pass through heat pump air conditioner, motor temperature regulating device
Interconnecting between battery temperature regulating device can use heat pump air conditioner simultaneously for air, motor and battery in cabin
Packet cooling avoids losing by the interrelated maximum utilization vehicle energy of three devices.
Other than above several operating modes for needing different device to carry out intercommunication, temperature regulation provided by the utility model
System can also individually control heat pump air conditioner work under refrigeration or heating mode, therefore the deformation that can also be comprised the following structure.
Mode 12: summer car refrigeration mode
As shown in figure 17, the first solenoid valve 22, second solenoid valve 23, automatically controlled flow control valve 21, solenoid valve 7 and swollen are controlled
Swollen valve 8 is turned off, and only solenoid valve 5 and expansion valve 6 is kept to be connected along the refrigeration direction of heat pump air conditioner.Its course of work is as follows: warp
The compressed high-temperature high-pressure refrigerant of compressor 1 enters by the port a of four-way valve 2, then flows by the port b of four-way valve 2
Out, into vehicle external heat exchanger 3, subsequently into solenoid valve 5, then become the refrigerant of low-pressure low-temperature by the throttling of expansion valve 6,
Heat exchanger 10 into the car, to air cooling-down into the car, the heat of refrigerant suction air into the car becomes low pressure mistake
Hot steam enters gas-liquid separator 26 by the port c outflow of four-way valve, is then return to subsequently into the port d of four-way valve 2
Compressor 1 realizes refrigeration cycle.At this point, PTC air heater 9 does not work in heat pump air conditioner.
Mode 13: winter car heating mode (not Gas-supplying enthalpy-increasing)
As shown in figure 18, the first solenoid valve 22, second solenoid valve 23, automatically controlled flow control valve 21, solenoid valve 7 are controlled at this time
It is turned off with expansion valve 8, only solenoid valve 5 and expansion valve 6 is kept to be connected along the heating direction of heat pump air conditioner.Its working principle is such as
Under: enter via the refrigerant that compressor 1 compresses from the port a of four-way valve 2, is flowed out from d mouthfuls, heat exchanger 10, add into the car
The air of heat into the car is condensed into subcooled liquid after refrigerant heat dissipation, by the decompression of expansion valve 6 at the refrigeration of low-temp low-pressure
Agent, then by solenoid valve 5 flow into vehicle external heat exchanger 3, absorb vehicle outside atmospheric heat, then by four-way valve 2 the port b into
Enter, from the port c, outflow enters gas-liquid separator 26, subsequently into compressor 1, realizes heating circulation.
Mode 14: dehumidification mode
As shown in figure 19, the first solenoid valve 22, second solenoid valve 23, automatically controlled flow control valve 21, solenoid valve 7 and swollen are controlled
Swollen valve 8 is turned off, and only solenoid valve 5 and expansion valve 6 is kept to be connected along the refrigeration direction of heat pump air conditioner.At this time its working principle is that:
Enter through the compressed high-temperature high-pressure refrigerant of compressor 1 by the port a of four-way valve 2, then passes through the port b of four-way valve 2
Outflow, subsequently into solenoid valve 5, then becomes the refrigeration of low-pressure low-temperature into vehicle external heat exchanger 3 by the throttling of expansion valve 6
Agent, heat exchanger 10, carry out cool-down dehumidification to air into the car, then PTC air heater 9 carries out air into the car
Heating, the air after heating into the car, finally, refrigerant enters the port d of four-way valve 2, are flowed out by the port c of four-way valve
Into gas-liquid separator 26, it is then return to compressor 1.
Based on the principle of above-mentioned 14 kinds of operating modes, available above scheme is integrated with motor temperature regulating device, heat
It pumps air-conditioning and battery pack temperature-adjusting device carries out vehicle heat management, interknited between three devices, make full use of vehicle energy
Amount.Heat pump air conditioner can not only freeze and heat in crew module, additionally it is possible to carry out heat management to battery and motor.Motor
The heat of automatically controlled generation is utilized by heat pump air conditioner, and when heating at a temperature of low temperature environment, the heat of electric control is used for tonifying Qi
Increasing enthalpy improves heat pump air conditioner heating performance under low temperature；In defrosting, the heat of electric control be used to add refrigerant
Heat improves compressor air suction temperature, avoids liquid hammer.The fever of electric control can also be utilized by battery pouring-basket cooling system, to electricity
The energy of Electrical Control is recycled, and is heated using the energy of motor to battery pack.It is super in environment temperature under bad working environments
When low temperature (- 30 DEG C), the quick heating to battery pack is realized using electric control heat and air-conditioning system；In environment temperature superelevation
Wen Shi, heat pump air conditioning system conjunction with motor cooling system and battery pouring-basket cooling system, realize interior refrigeration, battery pack it is cooling with
And motor is cooling, improves vehicle thermal management capabilities.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of electric car temperature regulation system, including motor temperature regulating device, First Heat Exchanger and heat pump air conditioner, special
Sign is:
The first port and second port of the First Heat Exchanger access cooling Jie of the motor in the motor temperature regulating device
Matter circulation loop, and the first solenoid valve is provided between first port/second port and motor cooling medium circulation loop；
First solenoid valve on or off under the control of Vehicle Controller；
The cooling medium circulation loop of the heat pump air conditioner is accessed in the third port of the First Heat Exchanger and the 4th port, wherein
Third port is connect with the compressor first port in heat pump air conditioner, and the 4th port passes through electronic flow regulating valve and heat pump air conditioner
Vehicle external heat exchanger second port connection；The second port of the vehicle external heat exchanger also passes through the first automatically controlled flow valve and car
The first port of heat exchanger connects；The control of the electronic flow regulating valve and the first automatically controlled flow valve in the Vehicle Controller
Lower on or off.
2. electric car temperature regulation system according to claim 1, which is characterized in that further include that battery temperature adjusts dress
It sets and the second heat exchanger:
The first port and second port of second heat exchanger access cooling Jie of the battery in the battery temperature regulating device
In matter circulation loop；
The third port of second heat exchanger and the 4th port are connected in the motor cooling medium circulation loop, and
Third port/be provided with second solenoid valve between the 4th port and motor cooling medium circulation loop；The second solenoid valve exists
On or off under the control of the Vehicle Controller.
3. electric car temperature regulation system according to claim 2, it is characterised in that:
The cooling of the heat pump air conditioner is accessed in cooler in the battery temperature regulating device, third port and the 4th port
In agent circulation loop, and in third port/be provided with the second automatically controlled flow valve between the 4th port and coolant circulation circuit；
Second automatically controlled flow valve on or off under the control of the Vehicle Controller.
4. electric car temperature regulation system according to claim 3, it is characterised in that:
The first port of the cooler is connect with the second port of second heat exchanger.
5. electric car temperature regulation system according to claim 3, it is characterised in that:
The battery temperature regulating device includes double core battery cooler；
A core in the double core battery cooler is as second heat exchanger, another core is as the cooling
Device.
6. according to the described in any item electric car temperature regulation systems of claim 3-5, it is characterised in that:
The first automatically controlled flow valve and/or the second automatically controlled flow valve are electric expansion valve.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973591A (en) * | 2018-08-02 | 2018-12-11 | 威马智慧出行科技（上海）有限公司 | Electric car temperature regulation system and its control method |
| CN114142121A (en) * | 2021-10-28 | 2022-03-04 | 华为数字能源技术有限公司 | Energy storage system |
| CN117168008A (en) * | 2023-09-04 | 2023-12-05 | 苏州黑盾环境股份有限公司 | Application of thermal fluorine technology in energy storage variable-frequency refrigeration |
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2018
- 2018-08-02 CN CN201821286159.4U patent/CN209126467U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973591A (en) * | 2018-08-02 | 2018-12-11 | 威马智慧出行科技（上海）有限公司 | Electric car temperature regulation system and its control method |
| CN108973591B (en) * | 2018-08-02 | 2024-04-16 | 威马智慧出行科技（上海）有限公司 | Electric automobile temperature regulation and control system and control method thereof |
| CN114142121A (en) * | 2021-10-28 | 2022-03-04 | 华为数字能源技术有限公司 | Energy storage system |
| CN117168008A (en) * | 2023-09-04 | 2023-12-05 | 苏州黑盾环境股份有限公司 | Application of thermal fluorine technology in energy storage variable-frequency refrigeration |
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