CN209274301U - A kind of heat management system for electric vehicle - Google Patents
A kind of heat management system for electric vehicle Download PDFInfo
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- CN209274301U CN209274301U CN201821241515.0U CN201821241515U CN209274301U CN 209274301 U CN209274301 U CN 209274301U CN 201821241515 U CN201821241515 U CN 201821241515U CN 209274301 U CN209274301 U CN 209274301U
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- triple valve
- heat
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- heat exchanger
- valve
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- 239000007788 liquid Substances 0.000 claims abstract description 68
- 239000003507 refrigerant Substances 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 48
- 239000002826 coolant Substances 0.000 claims abstract description 42
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000004378 air conditioning Methods 0.000 claims description 37
- 238000011084 recovery Methods 0.000 claims description 4
- 238000010792 warming Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 17
- 238000005057 refrigeration Methods 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000005494 condensation Effects 0.000 description 10
- 238000009833 condensation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000007791 dehumidification Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- -1 compressor 1 Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00921—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32284—Cooling devices using compression characterised by refrigerant circuit configurations comprising two or more secondary circuits, e.g. at evaporator and condenser side
-
- 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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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model provides a kind of heat management system for electric vehicle, it include: heat pump air conditioner component, including compressor 1, the First Heat Exchanger 2 of fluid supply, fluid supply the second heat exchanger 13 and associated first electric expansion valve 12, gas-liquid separator 14, compressor 1, First Heat Exchanger 2, the first electric expansion valve 12, the second heat exchanger 13 and gas-liquid separator 14 constitute the first refrigerant circuit, under battery pack heating mode, refrigerant is recycled via the first refrigerant circuit, and coolant liquid heats battery pack 20 after absorbing refrigerant heat in First Heat Exchanger 2.According to heat management system provided by the utility model, it is integrated with interior battery pouring-basket cooling system and electromotor cooling system, eliminates the PTC water-warming heater in battery pouring-basket cooling system, three system combined work, vehicle heat management efficiency is more excellent.
Description
Technical field
The utility model relates to heat management systems, the more particularly, to heat management system of electric vehicle.
Background technique
The currently rapid development of electric vehicle engineering, major impetus source of the battery pack as electric car, needs
Work just can guarantee its working efficiency and safe life with higher at a suitable temperature.In the prior art, work as needs
When being heated to battery pack, battery pack is individually for by heating component (hot-water heating ptc heater) and is heated, hot-water heating ptc heater
Higher cost, and PTC heating can consume many energy of electric car, thereby reduce the mileage travelled of electric car.
When in winter, when crew module needs heating, many energy can be consumed using PTC water-warming heater, be greatly reduced
Electric automobile during traveling mileage, in order to improve winter mileage travelled, air-source heat pump air conditioning system is applied among electric car,
But still there is following problems for air-source heat pump air conditioning system:
1, when vehicle external environment temperature is lower, humidity is larger, in heat pump heating, it will lead to vehicle external heat exchanger frosting, even
It freezes, seriously affects the heat exchange efficiency of vehicle external heat exchanger, need to carry out defrosting processing in time.
2, in vehicle external heat exchanger frosting, conventional heat pump air-conditioning system must first defrost to it, be refrigeration when defrosting
Mode cannot heat car, and in cold winter, vehicle external heat exchanger defrosting time is longer, and car passes through car body
Again relatively acutely, vehicle interior temperature will be greatly reduced, and seriously affect interior comfort for heat dissipation.
3, the fever of electric control and the fever of battery pack are not efficiently used, this partial heat is wasted.
4, at low ambient temperatures (0 DEG C~-20 DEG C) operation when, compressor air suction temperature is low, and must in order to meet heating
High-temperature exhaust air must be kept, causes the heating performance of heat pump system poor.
5, under summer superhigh temperature weather (45 DEG C or more), the low-temperature radiator in electromotor cooling system is in such severe gas
Temperature is lower possibly effectively can not to be reduced to design object value for the temperature of motor coolant liquid hereinafter, influencing traffic safety and vehicle
Energy.
Therefore, in order to effectively extend the battery pack service life, and the experience sense by bus of electric car car passenger is improved, needed
A kind of heat management system for electric vehicle is wanted, deficiency existing for above-mentioned conventional air source heat pump air-conditioning system can be overcome,
Guarantee the stability of heating and provides good experience sense by bus for passenger by bus.
Utility model content
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
As described above, in order to overcome the shortcomings of that conventional air source heat pump air-conditioning system, the utility model provide a kind of use
In the heat management system of electric vehicle, comprising: heat pump air conditioner component, First Heat Exchanger 2, liquid including compressor 1, fluid supply
Second heat exchanger 13 and associated first electric expansion valve 12, gas-liquid separator 14 in source, the compressor 1, described first
Heat exchanger 2, first electric expansion valve 12, second heat exchanger 13 and the gas-liquid separator 14 constitute the first refrigerant
The battery pack 20 in circuit, the First Heat Exchanger and the electric vehicle constitutes the first battery pack cooling circuit, in battery pack plus
Under heat pattern, refrigerant is recycled via first refrigerant circuit, and coolant liquid absorbs refrigerant heat in the First Heat Exchanger 2
Through being recycled by the first battery pack cooling circuit to be heated to the battery pack 20 after amount.
Such as above-mentioned heat management system, optionally, under the battery pack heating mode, second heat exchanger 13 and institute
The motor 24 and automatically controlled 23 for stating electric vehicle constitute motor cooling circuit, and coolant liquid is put to refrigerant in second heat exchanger 13
Through being recycled by the motor cooling circuit to the motor 24 and automatically controlled 23 cooling after heat.
If above-mentioned heat management system further includes optionally the heater cores 17 in the air-conditioning box, the warm wind
Core 17, the battery pack 20, the motor 24, described automatically controlled 23 and second heat exchanger 13 constitute coolant liquid heating and return
Road is in series with the first triple valve 16 and second between the second end of the First Heat Exchanger 2 and the second end of the battery pack 20
Triple valve 21 is equipped with third triple valve 18, institute between the first end of the heater cores 17 and the first end of the battery pack 20
State the third end of the first triple valve 16 at the same be coupled to the first end of the First Heat Exchanger 2, the heater cores 17 second
The third end at end and the third triple valve 18 is equipped with the 4th threeway between the heat exchanger 13 and the motor 24 and automatically controlled 23
The third end of valve 28, the 4th triple valve 28 is coupled between first triple valve 16 and second triple valve 21, institute
The third end for stating the second triple valve 21 is coupled between the 4th triple valve 28 and the motor 24 and automatically controlled 23, is adopted first
Under warm mode, the compressor 1 stops working, first triple valve 16, second triple valve 21, the third triple valve
18 and the 4th triple valve 28 be switched to and recycle coolant liquid via the coolant liquid heating loop so that the heater cores
17 utilize the heat heating of the battery pack 20 and the motor 24, automatically controlled 23.
Such as above-mentioned heat management system, optionally, the heat pump air conditioner component further includes first cold in air-conditioning box
Condenser 3, first refrigerant circuit passes through first condenser 3, and under the second heating mode, the compressor 1 works,
Refrigerant is recycled via first refrigerant circuit, and first condenser 3 is to the air heat release in air-conditioning box to adopt
It is warm.
Such as above-mentioned heat management system, optionally, between the third triple valve 18 and the first end of the battery pack 20
Equipped with the 5th triple valve 19, the third end of the 5th triple valve 19 is coupled to second triple valve 21 and the 4th threeway
Between the tie point of valve 28 and first triple valve 16, the battery pack 20, the motor 24 and automatically controlled 23 and described second
Heat exchanger 13 forms the second battery pack cooling circuit, under heat recovery battery pack heating mode, first triple valve 16, institute
Stating the 5th triple valve 19, second triple valve 21 and the 4th triple valve 28 and being switched to makes coolant liquid via the second battery pack
Cooling circuit circulation, to be the battery pack 20 heating by the heat of the motor 24 and automatically controlled 23.
If above-mentioned heat management system further includes optionally battery cooler 11 and associated second electric expansion valve
10, the battery cooler and the battery pack 20 constitute third battery pack cooling circuit, and the battery cooler 11 is coupled to
Between second triple valve 21 and the tie point and first triple valve 16 of the 4th triple valve 28, the third threeway
The 5th triple valve 19 is equipped between valve 18 and the first end of the battery pack 20, the third end of the 5th triple valve 19 is coupled to
Between the battery cooler 11 and first triple valve 16, the heat pump air conditioner component further includes the second condenser outside vehicle
5, the compressor 1, the First Heat Exchanger 2, first condenser 3, second condenser 5, second electronics are swollen
Swollen valve 10, the battery cooler 11 and the gas-liquid separator 14 constitute second refrigerant circuit, wherein described second is cooling
The 6th triple valve 4 is equipped between device 5 and first condenser 3, the third end of the 6th triple valve 4 is coupled to described second
The other end of condenser 5, under the first refrigeration mode, the 6th triple valve 4 is switched to refrigerant via second refrigeration
Agent circuit cycle, first triple valve 16, the 5th triple valve 19, second triple valve 21 and the 4th triple valve
28 are switched to and recycle coolant liquid via the third battery pack cooling circuit, and coolant liquid is to refrigeration in the battery cooler 11
The battery pack 20 is cooled down after agent heat release.
Such as above-mentioned heat management system, optionally, the heat pump air conditioner component further includes the evaporator 8 in air-conditioning box
And associated third electric expansion valve 7, the compressor 1, the First Heat Exchanger 2, first condenser 3, described
Two condensers 5, the third electric expansion valve 7, the evaporator 8 and the gas-liquid separator 14 constitute third refrigerant and return
Road, under the second refrigeration mode, refrigerant simultaneously via described second and third refrigerant circuit recycle, the evaporator 8 from
Air in air-conditioning box absorbs heat to freeze to car.
Such as above-mentioned heat management system, optionally, under third refrigeration mode, second electric expansion valve 10 is closed,
Refrigerant is only recycled via the third refrigerant circuit, to freeze to car.
Such as above-mentioned heat management system, optionally, second condenser 5 and the third electric expansion valve 7 and described
One end of second electric expansion valve 10 connection is further coupled between first electric expansion valve 12 and the 6th triple valve 4,
The compressor 1, the First Heat Exchanger 2, first condenser 3, second condenser 5, second heat exchanger 13
The 4th refrigerant circuit is constituted with the gas-liquid separator, further includes radiator 26, the heat dissipation in the motor cooling circuit
The 7th triple valve 25 is equipped between device 26 and the motor 24, the third end of the 7th triple valve 25 is coupled to the radiator
Between 26 and second heat exchanger 13, under the 4th refrigeration mode, the third electric expansion valve 7, second electronics are swollen
Swollen valve 10 and first electric expansion valve 12 are all opened, and the 6th triple valve, which is switched to, makes refrigerant simultaneously via described the
Two, the third and fourth refrigerant circuit recycles, and the 7th triple valve 25, which is switched to, makes motor cooling circuit flow through the heat dissipation
Device 26, coolant liquid in motor cooling circuit in second heat exchanger 13 by refrigerant suction heat after to the motor 24
It is cooling with automatically controlled 23.
Such as above-mentioned heat management system, optionally, under dehumidification mode, the third electric expansion valve 7 opened, described the
Two electric expansion valves 10 and first electric expansion valve 12 are all closed, the 6th triple valve 4 be switched to make refrigerant via
The compressor 1, the First Heat Exchanger 2, first condenser 3, the third electric expansion valve 7,8 and of the evaporator
Gas-liquid separator circulation, the evaporator 8 in air-conditioning box carry out after cool-down dehumidification by first condenser 3 air
Heating is to dehumidify to car.
According to heat management system provided by the utility model, it is integrated with interior battery pouring-basket cooling system and motor cooling system
System, eliminates the PTC water-warming heater in battery pouring-basket cooling system, three system combined work, and vehicle heat management efficiency is more excellent.
Detailed description of the invention
After the detailed description for reading embodiment of the disclosure in conjunction with the following drawings, it better understood when that this is practical new
The features described above and advantage of type.In the accompanying drawings, each component is not necessarily drawn to scale, and with similar correlation properties or
The component of feature may have same or similar appended drawing reference.
Fig. 1 shows the schematic diagram of heat management system provided by the utility model.
Fig. 2 shows the schematic diagrames that heat management system provided by the utility model works under battery pack heating mode.
Fig. 3 shows the schematic diagram that heat management system provided by the utility model works under the first heating mode.
Fig. 4 shows the schematic diagram that heat management system provided by the utility model works under the second heating mode.
What Fig. 5 showed that heat management system provided by the utility model works under heat recovery battery pack heating mode shows
It is intended to.
Fig. 6 shows the schematic diagram that heat management system provided by the utility model works under the first refrigeration mode.
Fig. 7 shows the schematic diagram that heat management system provided by the utility model works under third refrigeration mode.
Fig. 8 shows the schematic diagram that heat management system provided by the utility model works under the second refrigeration mode.
Fig. 9 shows the schematic diagram that heat management system provided by the utility model works under the 4th refrigeration mode.
Figure 10 shows the schematic diagram that heat management system provided by the utility model works under dehumidification mode.
Appended drawing reference
Compressor 1
Heat exchanger 2
Internal condensation device 3
Triple valve 4
Vehicle external condenser 5
Fan 6
Electric expansion valve 7
Interior evaporator 8
Air blower 9
Electric expansion valve 10
Battery cooler 11
Electric expansion valve 12
Heat exchanger 13
Gas-liquid separator 14
Water pump 15
Triple valve 16
Assist heater cores 17
Triple valve 18
Triple valve 19
Battery pack 20
Triple valve 21
Water pump 22
Automatically controlled 23
Motor 24
Triple valve 25
Low-temperature radiator 26
Fan 27
Triple valve 28
Specific embodiment
The utility model is described in detail below in conjunction with the drawings and specific embodiments.Note that below in conjunction with attached drawing and tool
The aspects of body embodiment description is merely exemplary, and is understood not to carry out the protection scope of the utility model any
Limitation.
Although as described above, can by existing conventional air source heat pump air-conditioning system be applied to electric car in,
In real work, there are many problems for conventional air heat pump air conditioning system.Therefore, the utility model provides a kind of heat management system
System, can be avoided the above problem, so that vehicle heat management performance is more excellent.
Fig. 1 shows the schematic diagram of heat management system provided by the utility model.Heat management provided by the utility model
System is broadly divided into three circuits, respectively heat pump air conditioner circuit, battery pouring-basket cooling system circuit and electromotor cooling system circuit.
Specifically, heat pump air conditioner circuit: compressor 1, heat exchanger 2, internal condensation device 3, triple valve 4, vehicle external condenser 5, fan 6, electricity
Sub- expansion valve 7, interior evaporator 8, air blower 9, electric expansion valve 10, battery cooler 11, electric expansion valve 12, heat exchanger
13, gas-liquid separator 14.This partial circuit primarily serves the main refrigerant of heat management system provided by the utility model, system
Heat function.
Battery pouring-basket cooling system circuit: water pump 15, triple valve 16, heat exchanger 2, auxiliary heater cores 17, triple valve 18, three
Port valve 19, battery pack 20, triple valve 21, battery cooler 11.It will be appreciated by those skilled in the art that battery pouring-basket cooling system is
Applied to the basic configuration of electric car, in heat management system provided by the utility model, pass through 11 He of battery cooler
Heat pump air conditioning system and battery pouring-basket cooling system are combined together by heat exchanger 2, with heat pump air conditioning system to battery pack cool down with
And heating, while the heat of battery pack and electric control can be recycled to warm air system, improve vehicle capacity usage ratio, more save
Can and vehicle interior temperature control effect it is more preferable.Also, in heat management system provided by the utility model, battery pouring-basket cooling system
In do not include PTC water-warming heater, not only save cost, and improve winter mileage travelled, PTC water-warming heater rises
To the effect of heating battery pack realized by heat pump air conditioning system.
Electromotor cooling system circuit: water pump 22, it is automatically controlled 23, motor 24, triple valve 25, low-temperature radiator 26, fan 27, change
Hot device 13, triple valve 28.Those skilled in the art, which answer, to be known, electromotor cooling system is matching substantially applied to electric car
It sets, in heat management system provided by the utility model, by heat exchanger 13 by heat pump air conditioning system and electromotor cooling system
Be combined together, with heat pump air conditioning system to electric motor temperature reduction, and in winter heating when motor coolant liquid as heat supply pump
Refrigerant absorbs heat in air-conditioning, while the heat of electric control can be recycled to warm air system, saves vehicle energy, it is more energy efficient and
Vehicle interior temperature control effect is more preferable.
Heat management system provided by the utility model further includes auxiliary heater cores 21, and above-mentioned auxiliary heater cores 21 can be with
It is crew module's heating for recycling the heat of electric control and battery pack, this partial circuit can provide for heat management system
The heat-production functions of auxiliary realize energy regenerating.
Heat management system provided by the utility model has multiple-working mode, specific below with reference to Fig. 2-Figure 10
The concrete condition of each operating mode is unfolded.
Fig. 2 shows heat management system provided by the utility model in winter battery pack charge mode when the signal that works
Figure.In winter, need to maintain within suitable temperature range to battery pack when charging to battery pack, it is necessary to battery pack plus
Heat.It is to be realized by the way that water-warming heater PTC is arranged in battery pack circuit in the prior art, PTC can consume many energy.Specifically
, as shown in Fig. 2, enter heat exchanger 2 through the compressed high-temperature high-pressure refrigerant of compressor 1, and in heat exchanger 2, refrigerant handle
Heat transfer gives battery coolant liquid, and coolant liquid is heated to battery pack, is condensed into subcooled liquid after refrigerant heat dissipation.Then refrigerant
By internal condensation device 3, at this point, air blower 9 is closed, subcooled liquid will not carry out heat with air in a car compartment at internal condenser
Exchange.Then refrigerant becomes the refrigerant of low-pressure low-temperature by the throttling of electric expansion valve 12, into heat exchanger 13, refrigerant
The heat for absorbing motor coolant liquid becomes low-pressure superheated steam, subsequently into gas-liquid separator 14, is then return to compressor 1.This
When, in heat pump air conditioning system, electric expansion valve 7 and 10 is turned off.
In the hydraulic fluid side of heat exchanger 2, coolant liquid passes through water pump 15 and triple valve 16, and then coolant liquid enters heat exchanger 2, so
Coolant liquid passes through triple valve 18, triple valve 19 afterwards, and into battery pack 20, coolant liquid is heated to battery pack, and then coolant liquid is passed through
Triple valve 21 and battery cooler 11 return to water pump 15.
Fig. 3 shows the schematic diagram that heat management system provided by the utility model works under the first heating mode.In vehicle
Operation during, motor and battery pack can persistently distribute heat, if it is possible to using this partial heat be passenger inside the vehicle
Heating can play energy recycling, energy-efficient effect.Therefore, the first heating mode is the heating mode that recovers energy.Specifically
, as shown in figure 3, coolant liquid passes through battery pack 20, temperature increases after the heat of coolant liquid absorption battery pack, then passes through threeway
Enter water pump 22 after valve 21, sequentially enters automatically controlled 23, motor 24, temperature increases after coolant liquid absorbs electric control heat, then
Successively by triple valve 25, heat exchanger 13, triple valve 28, battery cooler 11, water pump 15, triple valve 16, then coolant liquid into
Enter to assist heater cores 17, is heated to the air for entering crew module, then pass through triple valve 18 and 19, return to battery pack 20.
In the coolant circulation system, battery pack 20, automatically controlled 23, motor 24 calorific value are absorbed by coolant liquid, cooling
Liquid temperature increases, and in auxiliary heater cores 17, coolant liquid is to air heating into the car.Efficiently use electric control and electricity
Crew module's heating is given in the calorific value of Chi Bao.
Under conditions of not turning on the aircondition system, vehicle energy can be saved using the auxiliary heating mode, improved in winter
When electric car mileage travelled can also open air-conditioning system to reach better heating effect, allow auxiliary heating system
It is worked at the same time with air-conditioning system, improves heating effect.
Fig. 4 shows the schematic diagram that heat management system provided by the utility model works under the second heating mode.Upper
It states under the second heating mode, opens air-conditioning system, is i.e. compressor starts work.Specifically, as shown in figure 4, being pressed through compressor 1
High-temperature high-pressure refrigerant after contracting enters internal condensation device 3 by heat exchanger 2, at this point, air blower 9 is run, refrigerant is heat
Air is passed to, is admitted to crew module after air heating, is crew module's heating, is condensed into subcooled liquid after refrigerant heat dissipation, passes through
The throttling for crossing electric expansion valve 12 becomes the refrigerant of low-pressure low-temperature, into heat exchanger 13, refrigerant suction motor coolant liquid
Heat becomes low-pressure superheated steam, subsequently into gas-liquid separator 14, is then return to compressor 1.At this point, in heat pump air conditioning system
In, electric expansion valve 7 and 10 is turned off.
It can be crew module with air-conditioning system to reach suitable temperature as early as possible when heating just starts to carry out
Heating can close air-conditioning system after crew module's temperature reaches certain temperature, using (the first heating of auxiliary heating mode
Mode) it is crew module's heating, save vehicle energy.
Fig. 5 shows heat management system provided by the utility model work under battery pack heating mode in heat recovery mode
The schematic diagram of work.Although Fig. 2 has been illustrated with battery pack heated mould provided by heat management system provided by the utility model
Formula, but under battery pack heating mode as shown in Figure 2, compressor 1 continues working.But in the operational process of vehicle, vehicle
Motor there is extra heat to be shed, can use the partial heat come for battery pack heating.Specifically, as shown in figure 5, cold
But liquid passes through water pump 22, sequentially enters automatically controlled 23, motor 24, and temperature increases after coolant liquid absorbs electric control heat, then according to
It is secondary to pass through triple valve 25, heat exchanger 13, triple valve 28, battery cooler 11, water pump 15, triple valve 19, subsequently into battery pack
20, at this point, coolant liquid heats battery pack 18, last coolant liquid returns to water pump 22 by triple valve 21.The coolant liquid is recycled back to
Road realizes the function that recycling electric control heat is battery pack heating.
Fig. 6 shows the signal that heat management system provided by the utility model works in summer battery pack charge mode
Figure.In summer, when battery pack is in charging, need to cool down battery pack, to guarantee battery pack in suitable temperature range
Within.In this mode, pass through heat exchanger 2 and internal condensation device 3 through the compressed high-temperature high-pressure refrigerant of compressor 1, at this point,
Air blower 9 is closed, and then refrigerant enters vehicle external condenser 5, and fan 6 is opened, and refrigerant exothermic condensation is subcooled liquid, then
The refrigerant for becoming low-pressure low-temperature by the throttling of electric expansion valve 10, into battery cooler 11, refrigerant suction battery pack
Coolant temperature is battery pack cooling, and refrigerant suction heat becomes low-pressure superheated steam, subsequently into gas-liquid separator 14, most
After return to compressor 1.
In battery pouring-basket cooling system, coolant liquid passes through battery cooler 11, and coolant temperature reduces, then in turn through
Water pump 15, triple valve 19, subsequently into battery pack 20, coolant liquid absorbs battery pack heat, returns to electricity finally by triple valve 21
Pond cooler 11.
Fig. 7 shows the schematic diagram that heat management system provided by the utility model works in summer car refrigeration mode.
In this mode, air-conditioning system carries out cooling refrigeration to in-vehicle air.Specifically, as shown in fig. 7, compressed through compressor 1
High-temperature high-pressure refrigerant is not free into internal condensation device 3 at this point, the air door before internal condensation device 3 is closed by heat exchanger 2
Gas flows through condenser 3, and then refrigerant enters external condenser 5 by triple valve 4, and fan 6 is run, and refrigerant heat release became
Then cold liquid becomes the refrigerant of low-pressure low-temperature by the throttling of electric expansion valve 7, into the car evaporator 8, into vehicle
The heat of interior air cooling-down, refrigerant suction air into the car becomes low-pressure superheated steam, subsequently into gas-liquid separator
14, it is then return to compressor 1, realizes refrigeration cycle.At this point, electric expansion valve 10 and 12 is turned off in heat pump air conditioning system.
Fig. 8 shows heat management system provided by the utility model and freezes in summer car while cooling down to battery pack
The schematic diagram to work when mode.Compared with refrigeration mode shown in Fig. 7, within air-conditioning systems, electric expansion valve 10 is opened, refrigeration
Agent flows through battery cooler 11, and in battery cooler 11, the heat of refrigerant suction coolant liquid becomes low-pressure superheated steam, right
Battery pack coolant liquid is cooled down.
Fig. 9 show heat management system provided by the utility model summer car refrigeration, battery pack is cooling and motor is cold
But the schematic diagram to work when mode.It will be appreciated by those skilled in the art that due to motor, the presence of battery pack, the operation of vehicle
Environment is more harsh, in particular, vehicle when form on road surface, frequently encounters various extreme weathers, such as heat.In summer
Under atrocious weather, 45 DEG C or more, at this moment car needs to freeze, and battery pack needs to cool down, and motor also needs to cool down, therefore,
In existing technology, only by the first radiator 5 and the second radiator 26, possibly can not be cold motor under such severe temperature
But the temperature of liquid is reduced to design object value, influences safety and vehicle performance.To solve the above-mentioned problems, the utility model is in electricity
In machine cooling system, other than radiator 26, by increasing heat exchanger 13, the temperature of motor coolant liquid can be further decreased
Degree guarantees cooling effect of motor.
Figure 10 shows the schematic diagram that heat management system provided by the utility model works under dehumidification mode.It is raining
It, interior humid air can not only cause the body-sensing of passenger inside the vehicle uncomfortable, can also form fog on interior glass for vehicle window, block
The sight of driver, influences traffic safety.Therefore, it is necessary to dehumidify to in-vehicle air, specifically, as shown in Figure 10, through pressing
The compressed high-temperature high-pressure refrigerant of contracting machine 1 enters internal condensation device 3 by heat exchanger 2, at this point, high temperature refrigerant is to being evaporated
The air of 8 cool-down dehumidification of device heats, and is condensed into subcooled liquid after refrigerant heat dissipation, then enters electronic expansion by triple valve 4
Valve 7, refrigerant become the refrigerant of low-pressure low-temperature, into the car evaporator 8, in evaporator 8, to air into the car into
Row cool-down dehumidification is then return to compressor 1 finally, refrigerant enters gas-liquid separator 14.
Into crew module air successively pass through evaporator 8 cool-down dehumidification and internal condensation device 3 heating, be suitable for
Temperature enter crew module, achieve the effect that dehumidifying.
So far, it has been explained that the concrete condition of the different working modes of heat management system provided by the utility model.?
In heat management system provided by the utility model, it is integrated with electromotor cooling system, heat pump air conditioning system and battery pack cooling system
It unites, is interknited between three systems, vehicle heat is made full use of to carry out heat management.The fever of electric control and battery pack is sharp
It uses as crew module's heating, makes full use of vehicle energy.In winter, the calorific value that can use electric control adds for battery pack
Heat saves vehicle energy.In winter, it when automobile charges or when automobilism, is all made of air-conditioning system and gives battery pack heating,
To maintain its preference temperature, common PTC water-warming heater in battery pouring-basket cooling system is eliminated, cost is saved.Vehicle outer space
Gas source condenser is only used as condenser use, uses not as evaporator, so there is no exchange heat outside vehicle for this heat pump air conditioning system
The problem of device frosting, therefore, even being asked at (- 20 DEG C) at low ambient temperatures since there is no to vehicle external heat exchanger frosting
Topic, heat pump air conditioning system heating performance are highly stable.Heat pump air conditioning system not only freezes and makes to crew module and battery pack
Heat can also cool down motor.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (8)
1. a kind of heat management system for electric vehicle characterized by comprising
Heat pump air conditioner component, including compressor (1), the First Heat Exchanger (2) of fluid supply, fluid supply the second heat exchanger (13) and
Associated first electric expansion valve (12), gas-liquid separator (14), the compressor (1), the First Heat Exchanger (2), institute
It states the first electric expansion valve (12), second heat exchanger (13) and the gas-liquid separator (14) and constitutes the first refrigerant time
Road,
The battery pack (20) of the First Heat Exchanger and the electric vehicle constitutes the first battery pack cooling circuit.
2. heat management system as described in claim 1, which is characterized in that under the battery pack heating mode, described second
The motor (24) and automatically controlled (23) of heat exchanger (13) and the electric vehicle constitute motor cooling circuit, second heat exchanger
(13) in coolant liquid to after refrigerant heat release through being recycled by the motor cooling circuit to the motor (24) and automatically controlled (23)
It is cooling.
3. heat management system as claimed in claim 2, which is characterized in that further include the heater cores in the air-conditioning box
(17), the heater cores (17), the battery pack (20), the motor (24), automatically controlled (23) and second heat exchange
Device (13) constitutes coolant liquid heating loop,
The first triple valve (16) are in series between the second end of the First Heat Exchanger (2) and the second end of the battery pack (20)
With the second triple valve (21), third is equipped between the first end of the heater cores (17) and the first end of the battery pack (20)
Triple valve (18), the third end of first triple valve (16) are coupled to the first end, described of the First Heat Exchanger (2) simultaneously
The third end of the second end of heater cores (17) and the third triple valve (18),
The 4th triple valve (28), the 4th threeway are equipped between the heat exchanger (13) and the motor (24) and automatically controlled (23)
The third end of valve (28) is coupled between first triple valve (16) and second triple valve (21), second triple valve
(21) third end is coupled between the 4th triple valve (28) and the motor (24) and automatically controlled (23).
4. heat management system as claimed in claim 3, which is characterized in that the heat pump air conditioner component further includes being located at air-conditioning box
Interior the first condenser (3), first refrigerant circuit pass through first condenser (3).
5. heat management system as claimed in claim 4, which is characterized in that the third triple valve (18) and the battery pack
(20) the 5th triple valve (19) is equipped between first end, the third end of the 5th triple valve (19) is coupled to the described 2nd 3
Between port valve (21) and the tie point and first triple valve (16) of the 4th triple valve (28), the battery pack (20),
The motor (24) and automatically controlled (23) and second heat exchanger (13) form the second battery pack cooling circuit,
Under heat recovery battery pack heating mode, first triple valve (16), the 5th triple valve (19), described second
Triple valve (21) and the 4th triple valve (28), which are switched to, recycles coolant liquid via the second battery pack cooling circuit, to pass through
The heat of the motor (24) and automatically controlled (23) is the battery pack (20) heating.
6. heat management system as claimed in claim 4, which is characterized in that further include battery cooler (11) and associated
Two electric expansion valves (10), the battery cooler and the battery pack (20) constitute third battery pack cooling circuit,
The battery cooler (11) be coupled to the tie point of second triple valve (21) and the 4th triple valve (28) with
Between first triple valve (16), the 5th is equipped between the third triple valve (18) and the first end of the battery pack (20)
Triple valve (19), the third end of the 5th triple valve (19) are coupled to the battery cooler (11) and first triple valve
(16) between,
The heat pump air conditioner component further includes the second condenser (5) outside vehicle, the compressor (1), the First Heat Exchanger
(2), first condenser (3), second condenser (5), second electric expansion valve (10), the battery cooler
(11) and the gas-liquid separator (14) constitutes second refrigerant circuit, wherein second condenser (5) and described first cold
The 6th triple valve (4) is equipped between condenser (3), the third end of the 6th triple valve (4) is coupled to second condenser (5)
The other end.
7. heat management system as claimed in claim 6, which is characterized in that the heat pump air conditioner component further includes being set to air-conditioning box
Interior evaporator (8) and associated third electric expansion valve (7), it is the compressor (1), the First Heat Exchanger (2), described
First condenser (3), second condenser (5), the third electric expansion valve (7), the evaporator (8) and the gas-liquid
Separator (14) constitutes third refrigerant circuit.
8. heat management system as claimed in claim 7, which is characterized in that second condenser (5) and the third electronics
One end of expansion valve (7) and second electric expansion valve (10) connection is further coupled to first electric expansion valve (12) and institute
It states between the 6th triple valve (4), the compressor (1), the First Heat Exchanger (2), first condenser (3), described
Two condensers (5), second heat exchanger (13) and the gas-liquid separator constitute the 4th refrigerant circuit,
Further include radiator (26) in the motor cooling circuit, the is equipped between the radiator (26) and the motor (24)
The third end of seven triple valves (25), the 7th triple valve (25) is coupled to the radiator (26) and second heat exchanger
(13) between.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821241515.0U CN209274301U (en) | 2018-08-02 | 2018-08-02 | A kind of heat management system for electric vehicle |
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| CN201821241515.0U CN209274301U (en) | 2018-08-02 | 2018-08-02 | A kind of heat management system for electric vehicle |
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| CN110525271A (en) * | 2019-08-27 | 2019-12-03 | 奇瑞商用车（安徽）有限公司 | New energy vehicle heat management system and pure electric vehicle |
| CN112046241A (en) * | 2020-08-14 | 2020-12-08 | 珠海格力电器股份有限公司 | Heat management system, control method thereof and electric automobile |
| CN112046242A (en) * | 2020-08-14 | 2020-12-08 | 珠海格力电器股份有限公司 | Thermal management systems, electric vehicles |
| WO2021052341A1 (en) * | 2019-09-16 | 2021-03-25 | 杭州三花研究院有限公司 | Thermal management system |
| CN112810402A (en) * | 2021-03-02 | 2021-05-18 | 艾泰斯热系统研发（上海）有限公司 | Electric automobile thermal management system |
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| CN114274732A (en) * | 2021-12-31 | 2022-04-05 | 优跑汽车技术(上海)有限公司 | Electric vehicle air conditioning system and its control method |
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| CN112810402A (en) * | 2021-03-02 | 2021-05-18 | 艾泰斯热系统研发（上海）有限公司 | Electric automobile thermal management system |
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