CN209418731U - A kind of compound thermal management system being applied to cylindrical battery based on heat pump principle - Google Patents
A kind of compound thermal management system being applied to cylindrical battery based on heat pump principle Download PDFInfo
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- CN209418731U CN209418731U CN201920132895.2U CN201920132895U CN209418731U CN 209418731 U CN209418731 U CN 209418731U CN 201920132895 U CN201920132895 U CN 201920132895U CN 209418731 U CN209418731 U CN 209418731U
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000012782 phase change material Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 12
- 239000003507 refrigerant Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000004088 simulation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of compound thermal management systems for being applied to cylindrical battery based on heat pump principle, including battery case, outer loop equipment, electronic control unit.If dry cell batteries are arranged in the battery case, each battery pack is made of the cylindrical type single battery of P layers of N*M in-line arrangement, phase-change material is filled among battery case gap, and internal liquid pipeline is made of a threaded circular column tube of (N-1) * (M-1).The outer loop equipment is made of outside liquid pipeline, electronic water pump, Electrocontrolled tee valve, heat exchanger, compressor, electrically controlled 4-way diverter valve, condenser, fluid reservoir, electric control expansion valve, evaporator.The working condition of the electronic control unit control outer loop equipment.The utility model is with compact-sized, heat exchange efficiency is high, temperature control uniformity is good, low power consumption and other advantages；Three kinds of cooling to battery pack, heating and heat preservation functions can be realized based on heat pump principle, to guarantee that battery pack work is in optimum temperature range under full working scope.
Description
Technical field
The utility model relates to power battery field more particularly to a kind of cylindrical battery is applied to based on heat pump principle
Compound thermal management system.
Background technique
Before power battery has great 0. application in the fields such as hybrid power and pure electric automobile, navigation and aircraft
How scape guarantees that its working condition has become the research hotspot of each great institutions.Wherein, temperature is to damage the weight of power battery performance
Want factor.The excessively high voltage that will affect battery of temperature, efficiency for charge-discharge and battery life etc.；Temperature is too low, internal resistance can be made to increase
Greatly, discharge capacity is influenced, then may cause in charging and analyse lithium, cause internal short-circuit；Under extreme conditions, in some instances it may even be possible to meeting
There is leakage, phenomena such as deflating, smoldering, vigorous combustion and explosion occur when serious, substantially reduce power battery reliability and
Safety.
In power battery, cylindrical battery has technology maturation, at low cost, scattered compared to rectangular cell and soft-package battery
The advantages such as hot property is excellent and monomer consistency is good, heat management mode mainly use air-cooled or liquid cooling.However, with monomer
The increase of the energy density, quantity and battery pack complexity of battery, both modes are difficult to control the temperature of battery pack
In optimal operating temperature range.Since phase-change material has constant temperature suction/exothermic characteristic, can be delayed using its latent heat of phase change
Battery temperature is raised and lowered, to play the function of passive temperature control, the main problem of this mode be outside heat-sinking capability compared with
It is low, after the completion of material phase transformation, if battery pack cannot can be made to be in excessively high temperature environment in time by heat derives.So
The high-termal conductivity of the high recovery electric heating system of phase-change material and liquid medium is coupled, and to the liquid line of battery case and its inside
Structure design is carried out, is a kind of effective method.
Heat pump principle in the electric appliances such as air-conditioning, refrigerator, water heater using relatively broad, compared to traditional Resistant heating
Have the characteristics that high efficiency, low energy consumption.Battery thermal management system based on heat pump cycle can be realized quickly cold to liquid medium
But and heating, liquid medium carry out cooling/heating to phase-change material by battery case internal liquid pipeline, and then reach control electricity
The purpose of pond group temperature.
Summary of the invention
Technology based on the above background is applied to answering for cylindrical battery based on heat pump principle the utility model proposes a kind of
Close heat management system.The heat management system structure is compact, safe and reliable, heat exchange efficiency is high, temperature control uniformity is good, low energy consumption, can
Realize three kinds of functions of cooling, heating and heat preservation, the operating temperature of the control battery pack of high efficiency smart.
For above-mentioned background technique, the utility model adopts the following technical solution:
It is a kind of that the compound thermal management system of cylindrical battery is applied to by battery case, outer loop equipment based on heat pump principle
It is formed with electronic control unit；
The battery case includes Battery case, battery pack, phase-change material, internal liquid pipeline；Each battery pack is by P layers of N*
The cylindrical single battery of M in-line arrangement is constituted, and battery pack is arranged in Battery case, between cylindrical single battery and cylinder
Fill phase-change material in gap between shape single battery and Battery case；Internal liquid pipeline is across cylindrical single battery
Region, and periphery wrapped up by phase-change material；If Battery case there also is provided dry temperature sensor, Battery case top and bottom
It is equipped with fluid passage；Fluid passage at the top and bottom of the internal liquid pipeline connection；
The outer loop equipment includes outside liquid pipeline, electronic water pump, the first Electrocontrolled tee valve, the second automatically controlled threeway
Valve, First Heat Exchanger, the second heat exchanger, evaporator, electric control reversing four-way valve, compressor, condenser, fluid reservoir, automatically controlled expansion
Valve；
The electronic water pump, the first Electrocontrolled tee valve, First Heat Exchanger, the second Electrocontrolled tee valve, battery case constitute first
Circulation loop；The evaporator, electric control reversing four-way valve, compressor, electric control reversing four-way valve, condenser, fluid reservoir and automatically controlled
Expansion valve constitutes second circulation circuit；The electronic water pump, the first Electrocontrolled tee valve, the second heat exchanger, the second Electrocontrolled tee valve,
Battery case constitutes third circulation loop；
The electronic control unit is connected with temperature sensor in battery case, and is transmitted according to temperature sensor in battery case
Temperature signal control electronic water pump, compressor, the first Electrocontrolled tee valve, the second Electrocontrolled tee valve, electrically controlled 4-way diverter valve, electricity
Control the working condition of expansion valve.
Preferably, the single battery is fixed by positive and negative anodes bracket.
Preferably, the internal liquid pipeline is thread cylinder tube shape, is evenly arranged in often along battery longitudinal direction
In phase-change material between four single batteries, quantity is (N-1) * (M-1).
Preferably, the fluid passage for being placed in battery case bottom and top is square structure, and in bottom and top liquid
Several water inlets and several water outlets are respectively set in body channel, are connected to external circulation.
Preferably, the phase transition temperature of the phase-change material is between battery optimum working temperature range.
Preferably, the liquid medium in the liquid line be water, anti-icing fluid, water-ethylene glycol mixed liquor or other have
Conducive to the liquid medium of enhancing heat exchange property, liquid medium should have stronger thermally conductive forthright, freeze-proof, corrosion resistance and electricity
Insulating properties.
Preferably, the phase-change material is composite phase-change material by paraffin, expanded graphite, fire retardant, high molecular polymer
Or other Material claddings for being conducive to enhance phase transition performance form, and during phase-change material is undergone phase transition there is temperature to keep
Constant or variation range very little and it can absorb or discharge largely latent thermal properties.
The utility model has the advantage that
1. heat management system battery box structure is compact to design, single battery, phase-change material and liquid line connection and reasonable arrangement,
It can realize using phase-change material constant temperature heat absorption/exothermic character and in conjunction with liquid medium high-termal conductivity to the efficient heat of battery pack progress
Management, maintains optimal temperature range for the operating temperature of battery pack.
2. the design of multichannel threaded circular column tube and the side of battery case bottom and top inside heat management system battery case
The design of shape fluid passage, increases the heat exchange area between liquid line and phase-change material, while significantly improving battery pack transverse direction
With longitudinal temperature consistency.
3. heat management system application heat pump principle can be achieved the control of external recycle unit by electronic control unit
Three kinds of functions are cooled down, heated and kept the temperature to battery pack, realize adaptability of the battery thermal management system under full working scope, together
When significantly reduce the energy consumption of heat management system.
Detailed description of the invention
Fig. 1 is the utility model battery thermal management system general illustration；
Fig. 2 is the utility model battery heat reason control strategy flow chart；
Fig. 3 is the utility model battery thermal management electronic control unit schematic diagram；
Fig. 4 is battery assembly provided by the embodiment of the utility model with explosive view；
Fig. 5 is that single battery arranges schematic diagram in battery pack provided by the embodiment of the utility model；
Structure chart when Fig. 6 is phase-change material solid state in battery pack provided by the embodiment of the utility model；
Fig. 7 is liquid medium circulation duct structural schematic diagram provided by the embodiment of the utility model；
Fig. 8 is battery pack positive and negative anodes supporting structure schematic diagram provided by the embodiment of the utility model；
Fig. 9 emulates the composite battery heat management system structure schematic diagram that case one provides；
Figure 10 emulates the composite battery heat management system structure schematic diagram that case two provides；
Figure 11 is the composite battery heat management system structure schematic diagram that the emulation case three based on the utility model provides；
Figure 12~14 are to emulate battery pack temperature cloud atlas under certain operating condition that one, two, three simulation calculation of case obtains；
Figure 15 is to emulate battery pack maximum temperature under certain operating condition that case one, two, three is obtained through simulation calculation to become at any time
The curve graph of change；
Figure 16 is that single battery is maximum warm in battery pack under certain operating condition that emulation case one, two, three is obtained through simulation calculation
Poor time history plot；
1- cylindrical battery；2- phase-change material；3- liquid medium circulation thread cylinder pipe；4- Battery case；5- electronics
Water pump；6- electronic control unit；The first Electrocontrolled tee valve of 7-；8- First Heat Exchanger；9- evaporator；10- electrically controlled 4-way diverter valve；
11- cooling cycle heat exchange frame；12- compressor；13- heating cycle heat exchange frame；14- condenser；The second heat exchanger of 15-；16-
Fluid reservoir；17- electric control expansion valve；The second Electrocontrolled tee valve of 18-；19- overhead-liquid flow of media plate；20- battery anode branch
Frame；21- battery electrode bracket；22- bottom liquid flow of media plate；Circular hole where 23- threaded circular column tube；24- single battery
Place circular hole；25- liquid medium inflow entrance；26- liquid medium outflux；27- single battery positive terminal circular hole；28- monomer electricity
Pond negative pole end circular hole；29- heat conductive rod.
Specific embodiment
The utility model is described in more detail below with reference to examples and drawings, but not as to the utility model
Restriction.
The utility model is applied to the compound thermal management system of cylindrical battery mainly by battery case, outer based on heat pump principle
Portion's recycle unit, electronic control unit composition.
As shown in attached drawing 4~8, the battery case includes: battery pack 1, phase-change material 2, internal liquid pipeline 3, battery case
Body 4；The battery pack 1 is made of the cylindrical single battery of 1 layer of 3*7 in-line arrangement, single battery by positive and negative anodes bracket 20,21 into
Row is fixed, and liquid medium distributes 2*6 branch water route after the rectangular fluid passage 22 of battery case bottom passes through Battery case, is flowed into
The threaded circular column tube 3 being embedded in phase-change material 2, the rectangular fluid passage 19 at the top of battery pack of finally converging, battery case bottom
The rectangular fluid passage at portion and top is respectively set a water inlet 25 and a water outlet 26 and is connected to outer loop equipment.
As shown in Fig. 1, the outer loop equipment includes outside liquid pipeline, electronic water pump 5, the first Electrocontrolled tee valve
7, the second Electrocontrolled tee valve 18, First Heat Exchanger 8, the second heat exchanger 15, evaporator 9, electric control reversing four-way valve 10, compressor
12, condenser 14, fluid reservoir 16, electric control expansion valve 17；According to liquid flow direction, the electronic water pump 5, the first automatically controlled threeway
Valve 7, First Heat Exchanger 8, the second Electrocontrolled tee valve 18, battery case internal liquid pipeline 3 constitute first circulation circuit；According to liquid
Flow direction, the evaporator 9, electric control reversing four-way valve 10, compressor 12, electric control reversing four-way valve 10, condenser 14, liquid storage
Tank 16 and electric control expansion valve 17 constitute second circulation circuit；According to liquid flow direction, the electronic water pump 5, first automatically controlled three
Port valve 7, the second heat exchanger 15, the second Electrocontrolled tee valve 18, battery case internal liquid pipeline 3 constitute third circulation loop.
As shown in Fig. 3, battery pack 1 and phase in the battery case that the electronic control unit 1 is measured according to temperature sensor
The temperature signal for becoming material 2 determines operating condition locating for battery, it is corresponding control the first Electrocontrolled tee valve 7, the second Electrocontrolled tee valve 18,
Electric control reversing four-way valve 10, electronic water pump 5, compressor 12 and electric control expansion valve 17 act, and switch different circulation loops, with
Select different heat management modes.
As shown in Fig. 2, the battery thermal management system can the realization of battery pack 1 be cooling, heats and keep the temperature three kinds of functions.
The refrigerating function: when battery temperature be higher than the optimum working temperature upper limit when, i.e., only by phase-change material 2 latent heat without
Unlatching when method meets cooling requirements, electronic control unit 6 control first circulation circuit and second circulation loop works, first circulation
Circuit flows through the first Electrocontrolled tee valve 7 through the driving of electronic water pump 5 for liquid medium, changes into First Heat Exchanger 8 and evaporator 9
Heat, the liquid medium after cooling flows into the rectangular fluid passage 22 in 4 bottom of Battery case through the second Electrocontrolled tee valve 18, by pre-buried
Threaded circular column tube 3 and phase-change material 2 between single battery exchange heat, and promote phase-change material 2 to continue to absorb the heat of battery pack 1, reach
To the purpose for reducing by 1 temperature of battery pack, the liquid medium after completing heat exchange converges into the rectangular fluid passage at 4 top of Battery case
19, it is then again introduced into electronic water pump 5, completes one cycle；Second circulation circuit is the high pressure medium temperature liquid in fluid reservoir 16
Refrigerant becomes low pressure medium temperature liquid refrigerant through the decompression of electric control expansion valve 17, and then by evaporator 9 and First Heat Exchanger 8
Liquid medium heat exchange become low-temp low-pressure gaseous refrigerant, through electrically controlled 4-way diverter valve 10 flow into compressor 12 become high temperature height
Gaseous refrigerant is pressed, then commutates through electrically controlled 4-way diverter valve 10 and flows into condenser 14, high temperature and high pressure gaseous refrigerant releases heat
It puts and ultimately becomes high pressure medium temperature liquid refrigerant to outside air and again flow into fluid reservoir 16, complete one cycle.Until battery
When group temperature is lower than the optimum working temperature upper limit, system exits refrigerating function.
The heating function: when battery temperature be lower than optimum working temperature lower limit when, i.e., only by phase-change material latent heat without
Unlatching when method reaches temperature control requirement, electronic control unit 6 control second circulation circuit and the work of third circulation loop, third circulation
Circuit flows through the first Electrocontrolled tee valve 7 through the driving of electronic water pump 5 for liquid medium, changes into the second heat exchanger 15 with condenser 14
Heat, the liquid medium after heating flows into the rectangular fluid passage 22 in 4 bottom of Battery case through the second Electrocontrolled tee valve 18, by pre-buried
Threaded circular column tube 3 and phase-change material 2 between single battery exchange heat, and promote phase-change material 2 to transfer heat to battery pack 1, reach
The purpose of 1 temperature of battery pack is increased, the liquid medium after completing heat exchange converges into the rectangular fluid passage at 4 top of Battery case
19, it is then again introduced into electronic water pump 5, completes one cycle；Second circulation circuit is the high pressure medium temperature liquid in fluid reservoir 16
Refrigerant becomes low pressure medium temperature liquid refrigerant through the decompression of electric control expansion valve 17 and flows into evaporator 9, low pressure medium temperature liquid refrigerant
The heat absorbed in outside air becomes low-voltage high-temperature gaseous refrigerant, flows into compressor 12 through electrically controlled 4-way diverter valve 10 and becomes
High temperature and high pressure gaseous refrigerant, then through the liquid in the commutation of electrically controlled 4-way diverter valve 10 inflow condenser 14 and the second heat exchanger 15
Media for heat exchange ultimately becomes high pressure medium temperature liquid refrigerant and again flows into fluid reservoir 16, completes one cycle.Until battery pack temperature
When degree is higher than the optimum working temperature upper limit, system exits heating function.
The heat insulation function: when battery pack temperature is in best effort section, outer loop equipment does not work at this time, benefit
The temperature of battery pack 1 is kept with the constant temperature of phase-change material 2 suction/exothermic character.
Simulation example
The utility model is further elaborated below with reference to simulation example:
Selection scale is 18650 column lithium ion battery groups made of 1 layer of 3*5 in-line arrangement as simulation object.Comparison
Analysis under the conditions of identical battery discharge multiplying power and coolant rate, the utility model proposes composite battery heat management system
Compared to the emulation case one proposed, the advantage for the composite battery heat management system for emulating case two.
The emulation case one proposed: its composite battery heat management system structure figure is as shown in Figure 9；Between single battery
Phase-change material is filled in gap between gap and single battery and Battery case, and battery case bottom and top arrange that rectangular liquid is logical
Road, and 2 water inlets and 2 water outlets are respectively set.
The emulation case two proposed: its composite battery heat management system structure figure is as shown in Figure 10；In emulation case one
Heat conductive rod is arranged on the basis of the structure, region of the heat conductive rod across cylindrical single battery, periphery is by phase transformation material
Material package, thermally conductive stick end protrude into the rectangular fluid passage of bottom and top.
Based on the utility model proposes emulation case three: its composite battery heat management system structure figure is as shown in figure 11,
2 water inlets are arranged in bottom liquid medium channel, and 2 water outlets are arranged in overhead-liquid channel.
Using temperature variations of the FLUENT software simulated battery group under identical discharging condition.It is emulated by FLUENT
Electric discharge finish time is calculated, emulates the battery pack temperature cloud atlas of case one, as shown in figure 12；Emulate the battery pack of case two
Temperature cloud picture, as shown in figure 13；Based on the utility model proposes emulation case three battery pack temperature cloud atlas, such as Figure 14 institute
Show.
Battery pack maximum temperature changes over time curve such as during discharge in the three above emulation case proposed
Shown in Figure 15；To change over time curve during discharge as shown in figure 16 for maximum temperature difference between single battery in battery pack.
It can be seen that by Figure 12~16, the composite battery heat management system in the emulation case three proposed based on the utility model
System has stronger temperature control and temperature uniformity than emulation case one and emulation case two, can be by the highest of battery pack
Temperature and maximum temperature difference control are within the temperature range of more preferably.And due to the composite battery of the utility model emulation proposition of case three
In heat management system the built-in cylindrical pipe heat conductive rod more built-in than in emulation case two have lower manufacturing cost with more
Good lightweight performance.
Emulate relevant parameter:
Battery: capacity be 3.4Ah18650 column lithium ion battery, 20~45 DEG C of optimum working temperature
Battery case, liquid medium channel, thermally conductive bar material: aluminium
Phase-change material: paraffin and expanded graphite composite phase-changing material, thermal conductivity 3W/ (mk), 30 DEG C of fusing point
Liquid medium inlet total flow: 0.18kg/s
Environment temperature: 20 DEG C
Discharge-rate: 3C
Discharge time: 1200s
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by described
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (6)
1. a kind of compound thermal management system for being applied to cylindrical battery based on heat pump principle, it is characterised in that by battery case, outside
Portion's recycle unit and electronic control unit composition；
If the battery case includes Battery case, dry cell batteries, phase-change material, internal liquid pipeline；Each battery pack is by P layers of N*
The cylindrical single battery of M in-line arrangement is constituted, and battery pack is arranged in Battery case, between cylindrical single battery and cylinder
Fill phase-change material in gap between shape single battery and Battery case；Internal liquid pipeline is across cylindrical single battery
Region, and periphery wrapped up by phase-change material；If Battery case there also is provided dry temperature sensor, Battery case top and bottom
It is equipped with fluid passage；Fluid passage at the top and bottom of the internal liquid pipeline connection；
The outer loop equipment include outside liquid pipeline, electronic water pump, the first Electrocontrolled tee valve, the second Electrocontrolled tee valve,
First Heat Exchanger, the second heat exchanger, evaporator, electric control reversing four-way valve, compressor, condenser, fluid reservoir, electric control expansion valve；
The electronic water pump, the first Electrocontrolled tee valve, First Heat Exchanger, the second Electrocontrolled tee valve, battery case constitute first circulation
Circuit；The evaporator, electric control reversing four-way valve, compressor, electric control reversing four-way valve, condenser, fluid reservoir and automatically controlled expansion
Valve constitutes second circulation circuit；The electronic water pump, the first Electrocontrolled tee valve, the second heat exchanger, the second Electrocontrolled tee valve, battery
Case constitutes third circulation loop；
The electronic control unit is connected with temperature sensor in battery case, and the temperature transmitted according to temperature sensor in battery case
Spend signal control electronic water pump, compressor, the first Electrocontrolled tee valve, the second Electrocontrolled tee valve, electrically controlled 4-way diverter valve, automatically controlled swollen
The working condition of swollen valve.
2. compound thermal management system according to claim 1, it is characterised in that the single battery is consolidated by positive and negative anodes bracket
It is fixed.
3. compound thermal management system according to claim 1, it is characterised in that the internal liquid pipeline is thread cylinder
Tube shape is evenly arranged in the phase-change material between every four single batteries along battery longitudinal direction, and quantity is (N-1) *
(M-1)。
4. compound thermal management system according to claim 1, it is characterised in that the battery case bottom and top that are placed in
Fluid passage is square structure, and several water inlets and several water outlets are respectively set in bottom and top fluid passage, and outer
The connection of portion's circulation loop.
5. compound thermal management system according to claim 1, which is characterized in that the phase transition temperature of the phase-change material is in electricity
Between the optimum working temperature range of pond.
6. compound thermal management system according to claim 1, which is characterized in that the liquid medium in the liquid line
For water, anti-icing fluid, water-ethylene glycol mixed liquor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920132895.2U CN209418731U (en) | 2019-01-25 | 2019-01-25 | A kind of compound thermal management system being applied to cylindrical battery based on heat pump principle |
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| CN201920132895.2U CN209418731U (en) | 2019-01-25 | 2019-01-25 | A kind of compound thermal management system being applied to cylindrical battery based on heat pump principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830784A (en) * | 2019-01-25 | 2019-05-31 | 浙江大学 | It is applied to the compound thermal management system and control method of cylindrical battery based on heat pump principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830784A (en) * | 2019-01-25 | 2019-05-31 | 浙江大学 | It is applied to the compound thermal management system and control method of cylindrical battery based on heat pump principle |
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