CN106816668A - A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method - Google Patents
A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method Download PDFInfo
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- CN106816668A CN106816668A CN201710172213.6A CN201710172213A CN106816668A CN 106816668 A CN106816668 A CN 106816668A CN 201710172213 A CN201710172213 A CN 201710172213A CN 106816668 A CN106816668 A CN 106816668A
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- battery cell
- cooling unit
- thermal runaway
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- 238000001816 cooling Methods 0.000 title claims abstract description 185
- 239000007788 liquid Substances 0.000 title claims abstract description 155
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 22
- 210000004027 cell Anatomy 0.000 claims abstract description 156
- 239000002826 coolant Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000155 melt Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 206010015535 Euphoric mood Diseases 0.000 description 1
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
-
- 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
Abstract
The present invention relates to a kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method, the liquid cooling apparatus include several liquid cooling units, each liquid cooling unit includes liquid cooling unit body and the intrinsic coolant of liquid cooling unit, liquid cooling unit body is made using high temperature fusible material, each liquid cooling unit body is brought into close contact by the respective structure for matching with corresponding battery cell surface respectively, when battery cell thermal runaway temperature exceedes the fusing point of high temperature fusible material, liquid cooling unit body melts and then the intrinsic coolant of liquid cooling unit enters battery bag to battery cell cooling down or fire extinguishing.Electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus proposed by the present invention, simple structure, reduces cost, and can effective monitoring, treatment electric automobile power battery thermal runaway problem, the very first time eliminates safe hidden trouble, it is ensured that the safety and reliability of vehicle electric system.
Description
Technical field
The present invention relates to new-energy automobile power battery thermal management technology field, more particularly to one kind possesses battery heat and loses
The electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus of control cooling fire-extinguishing function concurrently, monitoring system and method.
Background technology
Current new-energy automobile is mainly powered using ternary lithium ion battery and ferric phosphate lithium cell as power source.Lithium
In use, battery generally occurs the phenomenon of heating to battery, if these heats can not be distributed in time, it will
Constantly gather, so that battery constantly heats up, can not only influence the property indices of battery, and the heat of battery can be caused
It is out of control, it is also quite conceivable to battery irreversible damage, or even on fire, blast is occurred, trigger fire, cause security incident,
Lead to not the economic loss for making up and personal safety is dangerous；Further, lithium battery is in use, it is also possible in charge and discharge
Occur abnormal, such as internal short-circuit, external short circuit etc. in electric process, now battery also occurs the phenomenon drastically generated heat, and then
Cause the thermal runaway of battery.Additionally, lithium battery is in process of production, it is also possible to the flaw for failing to verify in time occur, together
Sample is to the normal using bringing potential safety hazard of lithium battery, once there is the thermal runaway of battery, necessarily cause it is a series of it is serious after
Really.Therefore, a kind of effective monitoring and the effectively measure for the treatment of new-energy automobile power battery thermal runaway or method are needed badly at present.
The content of the invention
Once there is thermal runaway in the present invention, easily cause security incident for existing new-energy automobile power battery, lead
Economic loss and personal safety loss that cause cannot make up, and process currently without any effective monitoring and effectively existing new
The measure of energy automobile electrokinetic cell thermal runaway or method, there is provided a kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus,
The liquid cooling apparatus include several liquid cooling units being made using high temperature fusible material and there is coolant inside, work as battery
When monomer thermal runaway temperature exceedes the fusing point of high temperature fusible material, liquid cooling unit body melts and then coolant enters battery bag
To battery cell cooling down or fire extinguishing, can be eliminated safe hidden trouble for battery cell thermal runaway problem the very first time, it is ensured that
The safety and reliability of vehicle electric system.The invention further relates to a kind of electrokinetic cell thermal runaway monitoring system and method.
Technical scheme is as follows：
A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, for the battery cell thermal runaway prison in electrokinetic cell bag
Control, it is characterised in that the liquid cooling apparatus include several liquid cooling units, each liquid cooling unit includes liquid cooling unit body
With the intrinsic coolant of liquid cooling unit, the liquid cooling unit body is made using high temperature fusible material, each liquid
Cold cell body is respectively provided with the structure and each liquid cooling unit body that match with battery cell surface respectively by respective
The structure for matching is brought into close contact with corresponding battery cell surface, and each liquid cooling unit is sequentially communicated, when battery cell heat
When runaway temperature exceedes the fusing point of the high temperature fusible material, the liquid cooling unit body melts and then the liquid cooling unit sheet
Internal coolant enters battery bag to battery cell cooling down or fire extinguishing.
The liquid cooling unit body of the liquid cooling unit is made using the fusible metal material of high temperature.
It is 120 DEG C that the liquid cooling unit body uses the fusing point of high temperature fusible material.
The coolant is the liquid working substance of high-insulativity and big thermal capacity.
A kind of electrokinetic cell thermal runaway monitoring system, it is characterised in that gone out including above-mentioned electrokinetic cell thermal runaway cooling
Fiery liquid cooling apparatus, also including Battery case, water pump, radiator and circulation line, the Battery case is built-in by each battery cell
The battery bag of composition, the Battery case sealing sets and the polar terminals of each battery cell stretch out from Battery case, described
Each liquid cooling unit of liquid cooling apparatus is brought into close contact by the respective structure for matching with corresponding battery cell surface respectively, respectively
The liquid cooling unit is sequentially communicated and connects circulation line by the connected entrance of two terminals, and the circulation line is from the battery case
Draw in vivo, the water pump and radiator tandem are arranged on the circulation line drawn from the Battery case, are being battery list
When body radiates, the coolant is circulated under water pump control via circulation line, and then the coolant absorbs battery list
Body heat can after again by radiator heat release；When lowering the temperature or putting out a fire for battery cell, the liquid cooling unit body of the liquid cooling apparatus melts
Change and then coolant enters battery bag to battery cell cooling down or fire extinguishing.
The liquid cooling system also includes heater, and the heater is connected to the circulation line, adds for battery cell
When hot, the coolant is circulated under water pump control via circulation line, and then the coolant absorbs heater heat energy
Afterwards again heat release to battery cell.
The Battery case has three-decker, and battery case inner casing, battery case heat-insulation layer and battery are followed successively by from the inside to the outside
Case shell；
And/or, the water pump is electronic water pump.
The battery bag includes multiple battery modules, each battery modules constituted by battery cell series-parallel system and
Mutually isolated between each battery modules, when lowering the temperature or putting out a fire for battery cell, the liquid cooling unit body of the liquid cooling apparatus melts
Change and then coolant enters corresponding battery modules to battery cell cooling down or fire extinguishing.
A kind of electrokinetic cell thermal runaway monitoring method, it is characterised in that battery bag is inserted into the Battery case that sealing is set
It is interior and the terminal of each battery cell is stretched out from Battery case, using several liquid cooling units respectively with corresponding battery cell
Surface is brought into close contact, and liquid cooling unit includes the liquid cooling unit body made using high temperature fusible material and in liquid cooling unit sheet
The coolant for setting in vivo, each liquid cooling unit is sequentially communicated and the connected entrance by two terminals connects circulation line, is followed described
Endless tube road is drawn from the Battery case and is sequentially connected water pump and radiator, when being radiated for battery cell, the cooling
Liquid is circulated under water pump control via circulation line, and then again by radiator after coolant absorption battery cell heat energy
Heat release；When battery cell thermal runaway temperature exceedes the fusing point of the high temperature fusible material, the liquid cooling unit body fusing
And then the coolant enters battery bag to battery cell cooling down or fire extinguishing.
Heater is connected to the circulation line, when being heated for battery cell, the coolant is under water pump control
Circulated via circulation line, and then the coolant absorbs after heater heat energy heat release again to battery cell；
And/or, battery bag is divided into multiple battery modules, each self-isolation of each battery modules is set, work as battery
When monomer thermal runaway temperature exceedes the fusing point of the high temperature fusible material, the liquid cooling unit body melts and then the cooling
Liquid enters corresponding battery modules to battery cell cooling down or fire extinguishing.
Technique effect of the invention is as follows：
A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus of the present invention, including several liquid cooling units, adopt
The liquid cooling unit body being made with high temperature fusible material is sticked to battery cell surface, by the company of liquid cooling apparatus terminal
Port can be used for being connected to circulation line, in other words, the liquid cooling apparatus application when can as circulation line in one
Certain applications, simple structure is exquisite, and liquid cooling unit fusing rupture coolant is gone out into battery bag and then cooling during battery thermal runaway
Fire, again without the part such as other special constructions or special monitoring temperature sensor during practical application, improves reliability simultaneously
Effective reduces cost；When battery cell thermal runaway temperature exceedes the fusing point of high temperature fusible material, the fusing of liquid cooling unit body
And then the intrinsic coolant of liquid cooling unit (coolant i.e. in circulation line) enters battery bag to battery cell cooling down
Or put out a fire, the liquid cooling apparatus can be processed, eliminated safe hidden trouble, effectively the very first time for battery cell thermal runaway problem
The accidents such as the fire that prevention electrokinetic cell thermal runaway triggers, there is provided a kind of effective monitoring and effectively process existing new energy
The device measure of source automobile power cell thermal runaway and security mechanism, it is ensured that the safety and reliability of vehicle electric system,
Eliminate the further genralrlization of electric automobile and the potential safety hazard of application.Further, each liquid cooling unit of the liquid cooling apparatus has
Have with the structure that battery cell surface matches and each liquid cooling unit respectively by the respective structure for matching and corresponding electricity
Pond monomer surface is brought into close contact, and this structure setting further increases the sensitivity and reaction of liquid cooling apparatus temperature sensor change
Speed, while realizing contact heat-exchanging, further improves heat exchange efficiency, and each liquid cooling unit is integrated with cooling and fire-extinguishing function concurrently, i.e.,
In the liquid cooling apparatus during battery use, the function of cooling battery cell can be played, when there is thermal runaway in battery cell,
Liquid cooling unit body melts and then coolant is directly entered battery cell surface, plays the function of rapid cooling fire extinguishing, it is ensured that when
Can in time be monitored during generation electrokinetic cell thermal runaway and respond and process, so as to substantially increase the security of vehicle electric system
And reliability, it is adapted to the promotion and application of New-energy electric vehicle of new generation.
The invention further relates to a kind of electrokinetic cell thermal runaway monitoring system, lowered the temperature using above-mentioned electrokinetic cell thermal runaway and put out a fire
Liquid cooling apparatus, with reference to parts, coolant insertion such as Battery case (sealing is set), water pump, radiator, heater, circulation lines
In liquid cooling unit body and circulation line, coolant is circulated under water pump control via circulation line, in tender feeling high
Again by radiator heat release and then for battery cell radiates after coolant absorbs battery cell heat energy under condition；In battery heat
Melted by liquid cooling unit body under out-of-control condition and then coolant enters battery bag to battery cell cooling down or fire extinguishing；
Heat release to battery cell is battery cell heating again after coolant absorbs heater heat energy under low temperature condition.To sum up,
Liquid cooling system proposed by the present invention, while treatment for the radiating of battery cell high temperature, low-temperature heat, further directed to battery list
The body heat liquid that carries out out of control soaks direct cooling down or fire extinguishing, increases and optimize electric automobile power battery heat management system
Function, further prevents and excludes vehicle electric system potential safety hazard, improves the safety and reliability of vehicle electric system.
The invention further relates to a kind of electrokinetic cell thermal runaway monitoring method, corresponding to above-mentioned electrokinetic cell thermal runaway system,
The monitoring method step is simple, and practicality is high, it is possible to achieve carry out new-energy automobile power battery thermal runaway peace effectively
Full protection, for New Generation of Electric Vehicle vehicle mounted dynamic battery heat management system provides more preferably reliability and security.
Brief description of the drawings
Fig. 1 is a kind of preferred structure schematic diagram of electrokinetic cell thermal runaway monitoring system of the present invention.
Fig. 2 is the preferred structure schematic diagram of battery bag of the present invention.
Each label lists as follows in figure：
1- Battery cases；101- battery case inner casings；102- battery case heat-insulation layers；103- battery case shells；2- batteries
Monomer；The polar terminals of 201- battery cells；3- liquid cooling apparatus；4- circulation lines；5- coolants；6- electronic water pumps；
7- radiators；8- heaters；9- battery bags；901- battery modules.
Specific embodiment
The present invention will be described below in conjunction with the accompanying drawings.
The invention discloses a kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, for electrokinetic cell monomer thermal runaway
Monitoring.In cell management system of electric automobile, battery cell is constituted battery bag, specifically i.e., battery with series-parallel system
Monomer forms battery modules in actual battery bag with series-parallel system, and then battery modules constitute battery bag (i.e. electrokinetic cell
Bag).The liquid cooling apparatus include several liquid cooling units, and each liquid cooling unit includes in liquid cooling unit body and liquid cooling unit body
Coolant, liquid cooling unit body is made using high temperature fusible material, can preferably use the fusible metal material of high temperature
Material is made, should at least choose good thermal conductivity, poorly conductive, good insulating, non-flammable, be relatively soluble in liquid high temperature can
Fusing metal material, such as uses low-melting alloy.Coolant is preferably good insulation preformance and the big liquid working substance of thermal capacity, such as
50% ethylene glycol.Each liquid cooling unit body is respectively provided with the structure and each liquid cooling unit body difference matched with battery cell surface
It is brought into close contact with corresponding battery cell surface by the respective structure for matching, each liquid cooling unit is sequentially communicated, normal
When using, liquid cooling apparatus are used to give battery cell cooling, when battery cell thermal runaway temperature exceedes the molten of high temperature fusible material
During point, liquid cooling unit body melts (i.e. liquid cooling unit body fusing rupture, preferably further dissolves) and then liquid cooling unit body
Interior coolant enters battery bag to battery cell cooling down or fire extinguishing, i.e., carry out liquid immersion for battery cell thermal runaway
Directly rapid cooling down or fire extinguishing, certainly, it is cold that the liquid cooling apparatus can equally play absorbing and cooling temperature by solid melts to liquid
But act on.Therefore the liquid cooling apparatus are integrated with and battery cell is cooled down and fire-extinguishing function concurrently, while heat management function is realized
The fire triggered during prevention battery cell thermal runaway.
In a kind of preferred embodiment, it is 120 DEG C that liquid cooling unit body uses the fusing point of high temperature fusible material, so,
When battery cell is more than 120 DEG C in temperature, i.e. ternary lithium ion battery thermal runaway critical point is sticked with battery cell surface
Liquid cooling unit body melts, and then coolant in liquid cooling apparatus enters battery bag to battery cell cooling down or fire extinguishing.When
So, in actual applications as used during other class batteries, can be according to this kind of thermal runaway critical point temperature reasonable selection of battery
Corresponding high temperature fusible material.
The invention also discloses a kind of electrokinetic cell thermal runaway monitoring system, a kind of preferred embodiment as shown in Figure 1, bag
Battery case 1, electronic water pump 6, radiator 7, heater 8, circulation line 4 are included, is also dropped including above-mentioned electrokinetic cell thermal runaway
Temperature fire extinguishing liquid cooling apparatus 3, wherein, the internal battery bag of Battery case 1, the sealing of Battery case 1 is set, it is preferable that Battery case 1 can
With three-decker, battery case inner casing 101, battery case heat-insulation layer 102 and battery case shell 103 are followed successively by from the inside to the outside, with
Further enhance the sealing thermal insulation performance of Battery case 1；The polar terminals 201 of each battery cell 2 stretch out from Battery case 1,
Each liquid cooling unit of liquid cooling apparatus 3 is brought into close contact by the respective structure for matching with the surface of corresponding battery cell 2 respectively,
Each liquid cooling unit be sequentially communicated and circulation line 4, i.e. coolant 5 are connected in liquid unit body by the connected entrance of two terminals and
Insertion in circulation line 4, circulation line 4 is drawn from Battery case 1 and is sequentially connected electronic water pump 6, heater 8 and radiator
7, i.e. electronic water pump 6, heater 8 and radiator 7 are arranged in series in from the circulation line 4 of the extraction of Battery case 1.For example locating
When high-temperature condition needs to be radiated for battery cell 2, (coolant 5 preferably can be high-insulativity and big thermal capacity to coolant 5
Liquid) circulated via circulation line 4 under the control of electronic water pump 6, and then after the absorption heat energy of battery cell 2 of coolant 5 again
By the heat release of radiator 7；When needing to be heated for battery cell 2 for instance in low temperature condition, coolant 5 is controlled in electronic water pump 6
Under circulated via circulation line 4, and then coolant 5 absorbs after the heat energy of heater 8 heat release again to battery cell 2；I.e. just
Normal system is when using, liquid cooling apparatus are used to, to the battery cell cooling of electrokinetic cell bag, realize heat management function that liquid to be cold in use
Device sticks on battery cell surface, realizes transmission of heat by contact, with heat transfer efficiency higher.For instance in battery thermal runaway feelings
Condition need for battery cell 2 lower the temperature or put out a fire when, the thermal runaway temperature of battery cell 2 exceed high temperature fusible material fusing point, liquid
The liquid cooling unit body of device for cooling 3 melts and then coolant 5 quickly enters battery bag, so as to realize the battery cell to thermal runaway
2 cooling downs or fire extinguishing.
Preferably, as shown in Fig. 2 battery bag 9 further can also be divided into multiple battery modules 901, each battery mould
Group 901 includes multiple battery cells 2, it may also be said to be each battery modules 901 constituted by the series-parallel system of battery cell 2 and
It is mutually isolated between each battery modules 901, so when lowering the temperature or putting out a fire for battery cell 2, the liquid cooling unit sheet of liquid cooling apparatus 3
Body melts and then coolant 5 enters corresponding battery modules 901 (battery modules of battery cell thermal runaway occur) to battery
The cooling down of monomer 2 or fire extinguishing.The advantage of above-mentioned optimal design-aside is, by multiple each self-isolations in battery cell subregion, once it is electric
There is thermal runaway in pond monomer, the coolant in liquid cooling apparatus fully enters the battery modules that battery cell thermal runaway occurs, specially
Emphasis is concentrated and carries out cooling down or fire extinguishing, and the region that thermal runaway occurs is effectively isolated, and coolant does not enter heat does not occur
Region out of control, prevents incident area from spreading, and reduces accident treatment affected area, reduces economic loss.
The invention further relates to a kind of electrokinetic cell thermal runaway monitoring method, the method and electrokinetic cell thermal runaway monitoring system
It is corresponding, it will be appreciated that to be the method for realizing electrokinetic cell thermal runaway monitoring system of the present invention.Electrokinetic cell heat of the invention is lost
Control monitoring method is comprised the following steps that：
Fig. 1 is may be referred to, battery bag is inserted in the Battery case that sealing is set and by the terminal of each battery cell from electricity
Stretched out in the casing of pond, be brought into close contact with corresponding battery cell surface respectively using several liquid cooling units, liquid cooling unit includes
The liquid cooling unit body made using high temperature fusible material and the coolant set in liquid cooling unit body, that is,
Say, using above-mentioned electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, by each liquid cooling unit of liquid cooling apparatus respectively by each
From the structure for matching be brought into close contact with corresponding battery cell surface, each liquid cooling unit is sequentially communicated and by two terminals
Connected entrance connects circulation line, and circulation line is drawn from the Battery case and is sequentially connected water pump and radiator, for
When battery cell radiates, coolant is circulated under water pump control via circulation line, and then coolant absorbs battery cell
Again by radiator heat release after heat energy；When battery cell thermal runaway temperature exceedes the fusing point of the high temperature fusible material, liquid is cold
Cell body melts and then coolant enters battery bag to battery cell cooling down or fire extinguishing.
Preferably, with reference to Fig. 1, heater can also be connected to circulation line, when being heated for battery cell, coolant
Circulated via circulation line under water pump control, and then coolant absorbs after heater heat energy heat release again to battery cell.
It is highly preferred that with reference to Fig. 2, battery bag can also be divided into multiple battery modules, by each battery modules each every
From setting, when battery cell thermal runaway temperature exceedes the fusing point of the high temperature fusible material, liquid cooling unit body melt into
And coolant enters corresponding battery modules to battery cell cooling down or fire extinguishing.
It should be pointed out that the above specific embodiment can make those skilled in the art that the present invention is more fully understood
Create, but do not limit the invention in any way is created.Therefore, although this specification is created with embodiment to the present invention referring to the drawings
Make and have been carried out detailed description, it will be understood by those skilled in the art, however, that still can be modified to the invention
Or equivalent, in a word, all technical schemes for not departing from the spirit and scope of the invention and its improvement, it all should contain
Cover in the middle of the protection domain of the invention patent.
Claims (10)
1. a kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, supervise for the battery cell thermal runaway in electrokinetic cell bag
Control, it is characterised in that the liquid cooling apparatus include several liquid cooling units, each liquid cooling unit includes liquid cooling unit body
With the intrinsic coolant of liquid cooling unit, the liquid cooling unit body is made using high temperature fusible material, each liquid
Cold cell body is respectively provided with the structure and each liquid cooling unit body that match with battery cell surface respectively by respective
The structure for matching is brought into close contact with corresponding battery cell surface, and each liquid cooling unit is sequentially communicated, when battery cell heat
When runaway temperature exceedes the fusing point of the high temperature fusible material, the liquid cooling unit body melts and then the liquid cooling unit sheet
Internal coolant enters battery bag to battery cell cooling down or fire extinguishing.
2. electrokinetic cell thermal runaway according to claim 1 cooling fire extinguishing liquid cooling apparatus, it is characterised in that the cold list of liquid
The liquid cooling unit body of unit is made using the fusible metal material of high temperature.
3. electrokinetic cell thermal runaway according to claim 1 and 2 cooling fire extinguishing liquid cooling apparatus, it is characterised in that the liquid
It is 120 DEG C that cold cell body uses the fusing point of high temperature fusible material.
4. electrokinetic cell thermal runaway according to claim 1 and 2 cooling fire extinguishing liquid cooling apparatus, it is characterised in that described cold
But liquid is the liquid working substance of high-insulativity and big thermal capacity.
5. a kind of electrokinetic cell thermal runaway monitoring system, it is characterised in that including the described power electric of one of Claims 1-4
Pond thermal runaway cooling fire extinguishing liquid cooling apparatus, also including Battery case, water pump, radiator and circulation line, in the Battery case
Put the battery bag being made up of each battery cell, the Battery case sealing set and each battery cell polar terminals from battery case
Stretch out in vivo, each liquid cooling unit of the liquid cooling apparatus is respectively by the respective structure for matching and corresponding battery cell table
Face is brought into close contact, and each liquid cooling unit is sequentially communicated and the connected entrance by two terminals connects circulation line, the circulation pipe
Road is drawn from the Battery case, and the water pump and radiator tandem are arranged on the circulation line drawn from the Battery case
On, when being radiated for battery cell, the coolant is circulated under water pump control via circulation line, and then the cooling
Again by radiator heat release after liquid absorption battery cell heat energy；When lowering the temperature or putting out a fire for battery cell, the liquid of the liquid cooling apparatus
Cold cell body melts and then coolant enters battery bag to battery cell cooling down or fire extinguishing.
6. electrokinetic cell thermal runaway monitoring system according to claim 5, it is characterised in that the liquid cooling system also includes
Heater, the heater is connected to the circulation line, and when being heated for battery cell, the coolant is under water pump control
Circulated via circulation line, and then the coolant absorbs after heater heat energy heat release again to battery cell.
7. the electrokinetic cell thermal runaway monitoring system according to claim 5 or 6, it is characterised in that the Battery case tool
There is three-decker, battery case inner casing, battery case heat-insulation layer and battery case shell are followed successively by from the inside to the outside；
And/or, the water pump is electronic water pump.
8. electrokinetic cell thermal runaway monitoring system according to claim 5, it is characterised in that the battery bag includes multiple
Battery modules, each battery modules are constituted and mutually isolated between each battery modules by battery cell series-parallel system,
When lowering the temperature or put out a fire for battery cell, the liquid cooling unit body of the liquid cooling apparatus melts and then coolant enters corresponding battery
Module is to battery cell cooling down or fire extinguishing.
9. a kind of electrokinetic cell thermal runaway monitoring method, it is characterised in that insert in the Battery case that sealing is set battery bag
And the terminal of each battery cell is stretched out from Battery case, using several liquid cooling units respectively with corresponding battery cell table
Face is brought into close contact, and liquid cooling unit includes the liquid cooling unit body made using high temperature fusible material and in liquid cooling unit body
The coolant of interior setting, each liquid cooling unit is sequentially communicated and the connected entrance by two terminals connects circulation line, by the circulation
Pipeline is drawn from the Battery case and is sequentially connected water pump and radiator, when being radiated for battery cell, the coolant
Circulated via circulation line under water pump control, and then put by radiator again after coolant absorption battery cell heat energy
Heat；When battery cell thermal runaway temperature exceed the high temperature fusible material fusing point when, the liquid cooling unit body melt into
And the coolant enters battery bag to battery cell cooling down or fire extinguishing.
10. electrokinetic cell thermal runaway monitoring method according to claim 9, it is characterised in that heater is connected to institute
Circulation line is stated, when being heated for battery cell, the coolant is circulated under water pump control via circulation line, and then
The coolant absorbs after heater heat energy heat release again to battery cell；
And/or, battery bag is divided into multiple battery modules, each self-isolation of each battery modules is set, work as battery cell
When thermal runaway temperature exceedes the fusing point of the high temperature fusible material, the liquid cooling unit body melts and then the coolant is entered
Enter corresponding battery modules to battery cell cooling down or fire extinguishing.
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| CN201710172213.6A CN106816668A (en) | 2017-03-22 | 2017-03-22 | A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172213.6A CN106816668A (en) | 2017-03-22 | 2017-03-22 | A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method |
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| CN106816668A true CN106816668A (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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