CN108152756A - A kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency - Google Patents
A kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency Download PDFInfo
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- CN108152756A CN108152756A CN201810129234.4A CN201810129234A CN108152756A CN 108152756 A CN108152756 A CN 108152756A CN 201810129234 A CN201810129234 A CN 201810129234A CN 108152756 A CN108152756 A CN 108152756A
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- 238000012360 testing method Methods 0.000 title claims abstract description 111
- 239000003546 flue gas Substances 0.000 claims abstract description 73
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 69
- 231100000419 toxicity Toxicity 0.000 claims abstract description 9
- 230000001988 toxicity Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000007726 management method Methods 0.000 claims description 66
- 238000007599 discharging Methods 0.000 claims description 43
- 239000000779 smoke Substances 0.000 claims description 36
- 238000005070 sampling Methods 0.000 claims description 31
- 238000004868 gas analysis Methods 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001931 thermography Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000003517 fume Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 238000004880 explosion Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- 230000005764 inhibitory process Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003892 spreading Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 239000000470 constituent Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000003677 abuse test Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses the test device that a kind of battery pack thermal management system thermal runaway inhibits efficiency, including test department, battery thermal runaway trigger unit, battery status monitoring portion, instant fire extinguishment portion, flue gas detecting system and intelligence control system.The present invention triggers thermal runaway to the Li-ion batteries piles for being configured or not being configured heat management system using various ways, a variety of extreme, abuse conditions that battery pack in electric vehicle is subjected to can be simulated, by obtaining temperature of the battery pack before and after heat management system is configured, voltage, electric current, heat production characteristic and the component and toxicity that generate flue gas, systematically thermal runaway occurs for test battery pack thermal management system the inhibition efficiency with spreading, and realize thermal runaway test may be caused it is on fire efficiently put out, ensure personnel and equipment safety；It can be that the assessment reliability of heat management system, safety provide data and technical support simultaneously, be of great significance and excellent practical value to the safety of raising electric vehicle.
Description
Technical field
The invention belongs to electric vehicle and energy-accumulating power station secondary cell technical field of measurement and test, and in particular to a kind of battery pack
Heat management system thermal runaway inhibits the test device of efficiency.
Background technology
Growing with electric vehicle, the importance of on-vehicle battery group heat management system is promoted rapidly.But in recent years,
Frequent electric vehicle fire incident explanation, also there are sizable safety is hidden for current Li-ion batteries piles thermal management applications
Suffer from.In general, most of battery pack thermal management system can control battery in safe range in normal charge and discharge.But
Be, be abused or single battery between inconsistent situation it is more serious when, easily induce individual monomers battery thermal runaway, short time
Interior release amount of heat, and with rupture, the even explosion on fire of release toxic combustible gas；At the same time, with battery phase out of control
Adjacent other batteries are heated rapidly, so as to cause sprawling of the thermal runaway in the range of entire battery pack.In this case, it is if electric
The heat management system heat absorption of pond group, radiating efficiency are insufficient, can only just play the role of delaying thermal runaway rate of propagation, and can not have
Effect inhibits thermal runaway；It is more serious, due to meeting with high temperature, high fever in very short time, so as to which melting failure, pyrolysis occur even
Burning, not only cannot effectively play the function of heat management or even can aggravate sprawling of the thermal runaway in battery pack.To prevent such thing
Therefore generation, need efficient heat management system to inhibit battery that sprawling in battery pack after thermal runaway occurs.Therefore it is directed to
Can heat management system effectively inhibit the generation and sprawling of battery pack thermal runaway, need to carry out battery pack thermal management system indiscriminate
The inhibition efficiency and its functional safety of thermal runaway are made with assessing various heat management systems with the test under, extreme environmental conditions
With.
At present, the thermal runaway abuse test device of monomer lithium ion battery has developed fairly perfect, however, as electricity
The thermal runaway danger of pond group is larger, can safety, it is controllable under conditions of, complete the device of battery pack thermal runaway abuse test
Compare it is deficient, can be configured with heat management system battery pack realize abuse, thermal runaway test device it is more rare, to battery
There is not been reported for the test device of group heat management system thermal runaway inhibition efficiency.This cause battery pack thermal management system abuse,
Reliability and security under extreme environmental conditions has no way of investigating, and the safety of electric vehicle is difficult to be completely secured.Therefore, it studies
Heat management system assesses reliability, the safety of heat management system, to improving the peace of electric vehicle to the inhibition efficiency of thermal runaway
Full property is of great significance.
Invention content
The object of the present invention is to provide a kind of safe and reliable, high efficiency smart, measuring accuracy it is high for detecting lithium-ion electric
Pond group heat management system thermal runaway inhibits the test device of efficiency, can be realized using the test device and lithium ion battery is worn
Thorn, extruding, heating, super-charge super-discharge, fast charging and discharging, pulse charge and discharge etc. are any or combination triggers battery thermal runaway, to matching
It puts temperature of the battery pack of heat management system before and after thermal runaway, electric current, voltage to be monitored in real time, to battery before and after thermal runaway
The smoke components that group and its heat management system generate carry out qualitative and quantitative analysis with toxicity, the possibility fire caused to thermal runaway
Carry out high-effect fire-extinguishing, security control；By safety, controllable, accurately test, the present invention can be used for assessing, analyze battery pack heat
Management system to the inhibition efficiency of thermal runaway, determine thermal runaway occur after the danger that may bring of battery pack and its heat management system
Evil determines the reliability and security of battery pack thermal management system.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of battery pack thermal management system thermal runaway inhibits
The test device of efficiency, including test department, battery thermal runaway trigger unit, battery status monitoring portion, instant fire extinguishment portion, flue gas inspection
System and intelligence control system；
The test department includes cuboid test box and is fixed on the testboard of cuboid test box bottom plate, the test
Platform includes the Turbogrid plates for placing mesuring battary group and the L-type clamping plate of fixed mesuring battary group；
The battery thermal runaway trigger unit includes stainless steel heating tube, needle thorn pressurizing unit, battery charging and discharging tester；Institute
Stainless steel heating tube is stated between cuboid test box bottom plate and Turbogrid plates；The needle thorn pressurizing unit and cuboid test box
Top plate be fixedly connected, needle thorn pressurizing unit, which is realized, to be pierced or squeezes to the needle of mesuring battary group；The battery charging and discharging
Positive and negative anodes of the tester through conducting wire and mesuring battary group are electrically connected；
The battery status test section includes temperature sensor, thermal imaging system；The temperature sensor is mounted on L-type clamping plate
Metallic channel in；The thermal imaging system is arranged on the inside of cuboid test box, the alignment lens testboard of the thermal imaging system；
The instant fire extinguishment portion connect to realize instant fire extinguishment with test department；
The flue gas detecting system include smoke discharging pipe, exhaust fume collecting hood, frequency conversion fan, filtrating equipment of flue gas, gas sampling probe,
Flue gas analysis device；The both ends of the smoke discharging pipe connect exhaust fume collecting hood and frequency conversion fan respectively, and the exhaust fume collecting hood is located at cuboid
Inside test box, the frequency conversion fan is located at flue gas analysis device top；The top of the frequency conversion fan is filled equipped with smoke filtration
It puts；The smoke discharging pipe is equipped with several gas sampling probes, and the end of the gas sampling probe is connected to flue gas analysis device；
The intelligence control system includes the heater box, multichannel temperature Acquisition Instrument, the rack work that are integrated in Main Control Tank
Control machine, built-in industrial display and scram button；The heater box is connect with stainless steel heating tube；The multichannel temperature is adopted
Collection instrument is connect with temperature sensor；The input terminal of the rack industrial personal computer and multichannel temperature Acquisition Instrument, thermal imaging system, flue gas
Analytical equipment, battery charging and discharging tester connect respectively, output terminal and the built-in industrial display of the rack industrial personal computer
Connection；The scram button can be achieved at the same time the emergent stopping of battery thermal runaway trigger unit and the urgent of instant fire extinguishment portion opens
It is dynamic.
Preferably, the front face of the cuboid test box is equipped with front door, before the front door and cuboid test box
Wall surface is articulated and connected, and the movable end at the front door is equipped with handle；The middle part at the front door is equipped with glass window；The length
Square hole is provided on the top plate of cube test box and connects the circular ventilation mouth of smoke discharging pipe, the left wall of the cuboid test box
Face is equipped with the water delivery pore of connection water-supply-pipe, and the right wall of the cuboid test box is perforated equipped with lead.
Preferably, the needle thorn pressurizing unit includes cover body, air-leg, draw point, pressing plate, the upper end of the air-leg
Be fixedly connected with the internal face of cover body, the lower end of the air-leg connects draw point or pressing plate by collet, the cover body with
The top plate of cuboid test box is fixedly connected, and the air-leg passes through square hole to realize the movement to testboard；The cover body
It is made of the cast alloy steel with explosion prevention function.
Preferably, the thermal imaging system shares two, be equipped on the inside of the left wall face of the cuboid test box heat into
As instrument, a thermal imaging system is equipped on the inside of the top plate of the cuboid test box.
Preferably, the instant fire extinguishment portion includes water tank, water pump, water-supply-pipe and spray head；The entrance of the water pump and
Outlet connects water tank respectively and water-supply-pipe, the water-supply-pipe are penetrated inside cuboid test box, and the end of the water-supply-pipe connects
Connect spray head.
Preferably, the flue gas analysis device includes flue gas analysis case, and the end of the gas sampling probe is connected to flue gas
It analyzes inside case；Multicomponent gas sensor and smoke sampling bag, part of smoke probe tube are equipped in the flue gas analysis case
End with detection smoke components, concentration, toxicity multicomponent gas sensor connect, the end of another part gas sampling probe
It is connect with the smoke sampling bag for storing flue gas；The flue gas analysis device further includes the pressure of detection smoke sampling overpressure variation
Power transmitter, the pressure transmitter are differential pressure type pressure sensor；Flue gas flow probe is provided in the gas sampling probe.
Preferably, the output terminal of the rack industrial personal computer is also connect with needle thorn pressurizing unit, realizes needle thorn pressurizing unit
The motion control of middle air-leg；The output terminal of the rack industrial personal computer is also connect with water pump, realizes starting mode of pump and stopping
Control；The built-in industrial display also has warning function.
Preferably, the temperature sensor is K-type armoured thermocouple.
Preferably, the cuboid test box uses the cast alloy steel with explosion prevention function to be made；The spray head is adopted
With high temperature resistant explosion-proof material.
Preferably, the battery charging and discharging tester is the battery pack comprehensive parameters that the current/voltage upper limit is 150A/120V
Tester, electric lead, the shell of the battery charging and discharging tester are fire-proof insulation shell.
The beneficial effects of the invention are as follows：
(1) battery pack thermal management system thermal runaway of the present invention inhibits the test device of efficiency to (or not being configured) heat pipe is configured
The Li-ion batteries piles of reason system trigger thermal runaway using various ways, can simulate a variety of poles that battery pack in electric vehicle is subjected to
End, abuse condition safely, are controllably realized and the Li-ion batteries piles thermal runaway that (or not being configured) heat management system is configured are occurred
Detection with spreading feature, by obtaining temperature, voltage, electric current, heat production characteristic of the battery pack before and after heat management system is configured
And the component and toxicity of flue gas are generated, thermal runaway occurs for system testing battery pack thermal management system to imitate with the inhibition spread
Can, and realize thermal runaway test may be caused it is on fire efficiently put out, ensure personnel and equipment safety.
(2) it can be assessment heat management system that battery pack thermal management system thermal runaway of the present invention, which inhibits the test device of efficiency,
Reliability, safety data and technical support are provided, be of great significance, have excellent to the safety for improving electric vehicle
Practical value, conducive to promoting the use of.
Description of the drawings
Fig. 1 is the structure diagram for the test device that battery pack thermal management system thermal runaway of the present invention inhibits efficiency；
Fig. 2 is the internal structure schematic diagram of cuboid test box of the present invention；
Fig. 3 is the structure diagram of testboard of the present invention；
Fig. 4 is the structure diagram of stainless steel heating tube of the present invention；
Fig. 5 is the structure diagram in instant fire extinguishment portion of the present invention；
Fig. 6 is the structure diagram that needle of the present invention pierces pressurizing unit；
Fig. 7 is the structure diagram of flue gas detecting system of the present invention；
Wherein, 0-mesuring battary group；
1-test department, 11-cuboid test box, 111-front door, 112-handle, 113-glass window, 12-survey
Test stand, 121-Turbogrid plates, 122-L-type clamping plate, 123-metallic channel, 124-aluminium alloy post, 13-square hole, 14-ventilation
Mouthful, 15-water delivery pore, the perforation of 16-lead, 2-battery thermal runaway trigger unit, 21-stainless steel heating tube, 22-needle, which pierces, to be squeezed
Pressure device, 221-cover body, 222-air-leg, 223-draw point, 224-pressing plate, 225-collet, 23-battery charging and discharging are surveyed
Examination instrument, 3-thermal imaging system, 4-instant fire extinguishment portion, 41-water tank, 42-water pump, 43-water-supply-pipe, 44-spray head, 5-
Flue gas detecting system, 51-smoke discharging pipe, 52-exhaust fume collecting hood, 53-frequency conversion fan, 54-filtrating equipment of flue gas, 55-flue gas take
Sample pipe, 56-flue gas analysis device, 561-flue gas analysis case, 562-smoke sampling bag, 6-intelligence control system, 61-add
Hot tank, 62-multichannel temperature Acquisition Instrument, 63-rack industrial personal computer, 64-built-in industrial display, 65-scram button,
66-Main Control Tank.
Specific embodiment
Technical scheme of the present invention is more clearly understood in engineers and technicians in order to allow this field, says below in conjunction with the accompanying drawings
Technical scheme of the present invention is described in bright and specific embodiment, it is clear that the embodiment stated is the part of the present invention
Embodiment is not all of.On this basis, this field engineers and technicians are not under the premise of creative, invention labour is made
The other embodiments of acquisition, within the scope of the present invention.
As shown in Figure 1, a kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency, including test department 1, electricity
Pond thermal runaway trigger unit 2, battery status monitoring portion, instant fire extinguishment portion 4, flue gas detecting system 5 and intelligence control system 6；
As Figure 2-3, the test department 1 includes cuboid test box 11 and testboard 12, and the testboard 12 is logical
Aluminium alloy post 124 is crossed to be fixedly connected with 11 bottom plate of cuboid test box；The testboard 12 includes placing mesuring battary group 0
The L-type clamping plate 122 of Turbogrid plates 121 and fixed mesuring battary group 0, the L-type clamping plate 122 share four pieces, the L-type clamping plate
122 are detachably connected with Turbogrid plates 121, wherein there is several bar shaped trepannings on Turbogrid plates 121, for fixing L-shaped clamping plate
122, so as to which four pieces of L-shaped clamping plates 122 be allow to be fastened on any position of Turbogrid plates 121, sizes, shape are clamped respectively
Mesuring battary group 0 the orientation of left, right, front and rear four；The inner wall of the L-type clamping plate 122 is provided with temperature sensor mounted lead
Wire casing 123；Square hole 13 and circular ventilation mouth 14, the cuboid test box are provided on the top plate of the cuboid test box 11
11 left wall face is equipped with water delivery pore 15, and the right wall of the cuboid test box 11 is equipped with lead perforation 16；
The battery thermal runaway trigger unit 2 includes stainless steel heating tube 21, needle thorn pressurizing unit 22, battery charging and discharging test
Instrument 23；As shown in figure 4, the serpentine-like bending distribution of stainless steel heating tube 21, the stainless steel heating tube 21 are located at cuboid
Between 11 bottom plate of test box and Turbogrid plates 121, the stainless steel heating tube 21 is fixedly connected with 11 bottom plate of cuboid test box；Such as
Shown in Fig. 5-6, the needle thorn pressurizing unit 2 includes cover body 21, air-leg 22, draw point 23, pressing plate 24, the air-leg 22
Upper end be fixedly connected with the internal face of cover body 21, the lower end of the air-leg 22 passes through collet 25 and connects draw point 23 or pressure
Plate 24, collet 25 can install the draw point 23 of diameter in a certain range or the special pressing plate in the range of constant weight and area
24；The cover body 21 is fixedly connected with the top plate of cuboid test box 11, the air-leg 22 across square hole 13 realize to
The movement of testboard 12 is realized to the needle thorn of mesuring battary group 0 or extruding；The battery charging and discharging tester 23 is passed through through conducting wire
Lead perforation 16 and the positive and negative anodes of mesuring battary group 0 are electrically connected, and realize that the super-charge super-discharge to mesuring battary group 0, fast charge are fast
It puts, the experiments such as pulse charge and discharge, while realizes the monitoring to voltage, electric current before and after 0 thermal runaway of mesuring battary group；
The battery status test section includes temperature sensor, thermal imaging system 3；The temperature sensor is pressed from both sides mounted on L-type
In the metallic channel 123 of plate 122, temperature sensor, which is realized, supervises the temperature of the heat management system individual settings point of mesuring battary group 0
Control；The thermal imaging system 3 shares two, and a thermal imaging system 3 is equipped on the inside of the left wall face of the cuboid test box 11, described
A thermal imaging system 3, the alignment lens testboard 12 of the thermal imaging system 3, heat are equipped on the inside of the top plate of cuboid test box 11
Imager 3 is realized to the monitoring that bulk temperature is distributed before and after battery thermal runaway of 0 heat management system of mesuring battary group；
As shown in figure 5, the instant fire extinguishment portion 4 includes water tank 41, water pump 42, water-supply-pipe 43 and spray head 44, realize
Instant fire extinguishment；The entrance of the water pump 42 is connect with the bottom of water tank 41 by pipeline, and the outlet connection of the water pump 42 is defeated
Water pipe 43, the water-supply-pipe 43 pass through water delivery pore 15 to enter inside cuboid test box 11, and the end of the water-supply-pipe 43 connects
Connect spray head 44；
As shown in fig. 7, the flue gas detecting system 5 includes smoke discharging pipe 51, exhaust fume collecting hood 52, frequency conversion fan 53, flue gas mistake
Filter device 54, gas sampling probe 55, flue gas analysis device 56；The head end of the smoke discharging pipe 51 is bent downward across ventilation opening 14
Into inside rectangle test box 11, the head end connection exhaust fume collecting hood 52 of the smoke discharging pipe 51, the tail end of the smoke discharging pipe 53
Frequency conversion fan 53 is connected, is realized by smoke discharging pipe 51, exhaust fume collecting hood 52, frequency conversion fan 53 to mesuring battary group 0 before thermal runaway
The collection of flue gas is discharged afterwards；The top of the frequency conversion fan 53 is equipped with filtrating equipment of flue gas 54；The frequency conversion fan 53 is fixed on
The top of flue gas analysis device 56；The smoke discharging pipe 51 is equipped with several gas sampling probes 55, and gas sampling probe 55 is arranged
The fully developed position of turbulent flow in smoke discharging pipe 51, the end of the gas sampling probe 55 are connected to flue gas analysis device 56；
As shown in Figure 1, the intelligence control system 6 includes heater box 61, multichannel temperature Acquisition Instrument 62, rack industry control
Machine 63, built-in industrial display 64 and scram button 65；The heater box 61, multichannel temperature Acquisition Instrument 62, rack work
Control machine 63, built-in industrial display 64, scram button 65 are integrally disposed in Main Control Tank 66；The heater box 61 and stainless steel
Heating tube 21 connects, and the heating and the control of heating time, the heater box 61 for realizing stainless steel heating tube 21 can realize temperature
Spend the heating and thermostatic control between 50-900 DEG C；The multichannel temperature Acquisition Instrument 62 connect to acquire with temperature sensor
Temperature data, and transfer data to rack industrial personal computer 63 and analyzed and handled；The input of the rack industrial personal computer 63
End is connect respectively with multichannel temperature Acquisition Instrument 62, thermal imaging system 3, flue gas analysis device 56, battery charging and discharging tester 23, real
Now to test temperature, electric current, the detection of voltage and the analysis of smoke components；The output terminal of the rack industrial personal computer 63 with it is embedding
Enter formula industrial display 64 to be connected, the built-in industrial display 64 is realized to mesuring battary group 0 temperature, voltage, electric current
Display is with recording and fume component analysis is checked；The scram button 65 can be achieved at the same time battery thermal runaway trigger unit 2
Emergent stopping and instant fire extinguishment portion 4 emergency start, scram button 65 after pressing, intelligence control system 6 perform stop electricity
Pond thermal runaway trigger unit 2 and the order for opening instant fire extinguishment portion 4.
Preferably, the front face of the cuboid test box 11 is equipped with front door 111, the front door 111 and rectangular body examination
The front face of examination case 11 is articulated and connected, and the movable end at the front door 111 is equipped with handle 112；The middle part at the front door 111 is set
There is glass window 113.
Preferably, the flue gas analysis device 56 includes flue gas analysis case 561, and the end of the gas sampling probe 55 connects
To flue gas analysis case 561；It is equipped with multicomponent gas sensor and smoke sampling bag 562 in the flue gas analysis case 561, one
The end of partial fume probe tube 55 is connect with the multicomponent gas sensor of detection smoke components, concentration, toxicity, another part
The end of gas sampling probe 55 is connect with storing the smoke sampling bag 562 of flue gas；Mesuring battary group 0 and heat management system lose in heat
The flue gas for controlling forward and backward generation is collected by frequency conversion fan 53 by exhaust fume collecting hood 52, into smoke discharging pipe 51 to gas sampling probe 55, it
Afterwards, a part, which is sampled, into multicomponent gas sensor, realizes to smoke components, concentration variation and the analysis of toxicity inspection
It surveys, another part is stored into smoke sampling bag 562 convenient for further analyzing, remaining flue gas then passes through smoke evacuation in smoke discharging pipe 51
The special filtrating equipment of flue gas 54 of 51 tail end of pipeline is discharged into after filtering in air.
Preferably, the flue gas analysis device 56 further includes the pressure inverting of pressure change in detection gas sampling probe 55
Device, the pressure transmitter are differential pressure type pressure sensor.
Preferably, it is provided with flue gas flow probe in the gas sampling probe 55.
Preferably, the output terminal of the rack industrial personal computer 63 is also connect with needle thorn pressurizing unit, realizes that needle thorn squeezes dress
The motion control of air-leg 22 in 2 is put, wherein air-leg 22 is connect by conducting wire with rack industrial personal computer 63, passes through rack
Formula industrial personal computer 63 controls pneumatic thrust and speed, so as to fulfill to 0 needle of mesuring battary group thorn, extruding；The rack industrial personal computer
63 output terminal is also connect with water pump 42, realizes the control that water pump 42 starts and stops.
Preferably, the built-in industrial display 64 also has warning function；The rack industrial personal computer 63 passes through
Temperature, electric current and the voltage data of monitoring acquisition in real time, when collected performance data reaches alert if, can trigger insertion
The alarm of formula display 64 and jingle bell, prompt operating personnel to pay attention to test device and personal safety；Wherein, alert if can pass through
Rack industrial personal computer 63 is manually set：Temperature is more than the maximum value of setting；Temperature rate-of-rise is more than the maximum value of setting；
Voltage fluctuation is more than the range of setting；Curent change is more than the range of setting；Meet one alarm of any of which in test process
After condition or group alarm condition, intelligence control system 6 will trigger alarm.
Preferably, the temperature sensor is K-type armoured thermocouple.
Preferably, the cuboid test box 11 and cover body 21 are made of the cast alloy steel with explosion prevention function；
The spray head 44 uses high temperature resistant explosion-proof material.
Preferably, the battery charging and discharging tester 23 is the battery pack synthesis ginseng that the current/voltage upper limit is 150A/120V
Number tester, electric lead, the shell of the battery charging and discharging tester 23 are fire-proof insulation shell；The battery charging and discharging
The super-charge super-discharge, fast charging and discharging, pulse charge and discharge of battery can be completed to battery pack or be set to tester 23, can set sequence certainly
By combining, the circulation experiment of multiple, different parameters and work step is completed.
A kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency, and specific embodiment is as follows：
1) mesuring battary group that heat management system is not configured and the mesuring battary group for being configured with heat management system are placed in
On the Turbogrid plates 121 of the testboard 12 of different test devices, to analyze the function of heat management system；By mesuring battary group
0 positive and negative anodes are connected with the electric lead of battery charging and discharging tester 23, and temperature sensor is set mounted on L-type clamping plate 122
Position on, the installation site of mesuring battary group 0 is then adjusted according to the thermal runaway mode taken.
2) all parts and the circuit of intelligence control system are checked, it is ensured that connection is good；Check whether each channel is in
Working condition.
3) different thermal runaway modes is taken to carry out triggering thermal runaway experiment.
(1) needle is taken to pierce mode
A. the draw point 223 of set-mounted diameter on the collet 225 of pressurizing unit 22 is pierced in needle；
B. the driving velocity and thrust of air-leg 222 in needle thorn pressurizing unit 22 are set by intelligence control system 6,
Control air-leg 222 drives draw point 223 to move downward after setting completed, realizes in mesuring battary group 0 or mesuring battary group 0
The needle thorn of Individual cells；
C. during experiment, flue gas analysis device 56, thermal imaging system 3 is opened by intelligence control system 6 and led to more
Channel temp Acquisition Instrument 62 records the temperature change of mesuring battary group and the constituent analysis of flue gas；It is tested simultaneously by battery charging and discharging
Instrument 23 records the electric current of mesuring battary group, voltage change.
(2) fashion of extrusion is taken
A. the pressing plate 224 of set-mounted area on the collet 225 of pressurizing unit 22 is pierced in needle；
B. the driving velocity and thrust of air-leg 222 in needle thorn pressurizing unit 22 are set by intelligence control system 6,
Control air-leg 222 is moved downward with dynamic pressure plate 224 after setting completed, is realized to 0 cloth of mesuring battary group 0 or mesuring battary group
The extruding in office region；
C. during experiment, flue gas analysis device 56, thermal imaging system 3 is opened by intelligence control system 6 and led to more
Channel temp Acquisition Instrument 62 records the temperature change of mesuring battary group and the constituent analysis of flue gas；It is tested simultaneously by battery charging and discharging
Instrument 23 records the electric current of mesuring battary group, voltage change.
(3) mode of heating is taken
A. heater box 61 is opened, when setting is positioned at heating power and the heating of the stainless steel heating tube 21 of 12 bottom of testboard
Between, promote mesuring battary group 0 by the thermal runaway for causing battery after high temperature；
B. during experiment, flue gas analysis device 56, thermal imaging system 3 is opened by intelligence control system 6 and led to more
Channel temp Acquisition Instrument 62 records the temperature change of mesuring battary group and the constituent analysis of flue gas；It is tested simultaneously by battery charging and discharging
Instrument 23 records the electric current of mesuring battary group, voltage change.
(4) take overcharge, cross put, fast charge, put soon, pulse charge and discharge etc. are any or combination endless form
A. according to different charge and discharge forms, corresponding work step is set to battery charging and discharging tester 23, triggering is treated
Survey 0 thermal runaway of battery pack；
B. during experiment, flue gas analysis device 56, thermal imaging system 3 is opened by intelligence control system 6 and led to more
Channel temp Acquisition Instrument 62 records the temperature change of mesuring battary group and the constituent analysis of flue gas；It is tested simultaneously by battery charging and discharging
Instrument 23 records the electric current of mesuring battary group, voltage change.
4) conclusion (of pressure testing) judges
(1) mesuring battary group of heat management system is not configured
After battery thermal runaway trigger unit starts, if test device be recorded the temperature rises of Li-ion batteries piles, voltage,
Current anomaly fluctuates, while observes that phenomena such as smoldering, on fire occur in the triggering battery of mesuring battary group or subregion, i.e.,
It can determine that battery thermal runaway triggers successfully；Ingredient and oxicity analysis are carried out to flue gas simultaneously.
(2) mesuring battary group of heat management system is configured
Monitoring is configured with the temperature characterisitic of battery pack of heat management system and voltage, current characteristics,
If it a. triggers battery or thermal runaway, heat management system excellent does not occur in region adjacent battery；
B. if thermal runaway occur in adjacent cells, but there is not the thermal runaway of entire battery pack later, then heat management system
Effect is general；
If the thermal runaway even heat management system for entire battery pack c. occur is on fire dduring test, burning, heat management
System effect is poor, it is necessary to which it is optimized；
D. flue gas detecting system can analyze the flue gas of generation simultaneously, study the ingredient and toxicity of flue gas, opposite heat tube
The security effectiveness of reason system is further divided.
5) emergency is handled
If alarm jingle bell occur in test process or operating personnel observing that thermal runaway is on fire, operator is anxious by operating
Stop button 65, intelligence control system 6 is made to perform the order for stopping battery thermal runaway trigger unit 2 and opening instant fire extinguishment portion 4, so as to
Instant fire extinguishment is carried out, until flame and flue gas are put out；Treat that the temperature of battery pack, voltage and current stabilization in safe range, are seen
Test object is observed without other variations, after resume combustion, even explosion phenomenon no longer occur for confirmation battery pack and heat management system, side
It can carry out the inspection work of later stage cleaning and battery pack and heat management system.
Battery pack thermal management system thermal runaway of the present invention inhibits the test device of efficiency to (or not being configured) heat management is configured
The Li-ion batteries piles of system trigger thermal runaway using various ways, can simulate a variety of poles that battery pack in electric vehicle is subjected to
End, abuse condition safely, are controllably realized and the Li-ion batteries piles thermal runaway that (or not being configured) heat management system is configured are occurred
Detection with spreading feature, by obtaining temperature, voltage, electric current, heat production characteristic of the battery pack before and after heat management system is configured
And the component and toxicity of flue gas are generated, thermal runaway occurs for system testing battery pack thermal management system to imitate with the inhibition spread
Can, and realize thermal runaway test may be caused it is on fire efficiently put out, ensure personnel and equipment safety.Battery pack heat of the present invention
Management system thermal runaway inhibit the test device of efficiency can be the assessment reliability of heat management system, safety provide data and
Technical support is of great significance to the safety for improving electric vehicle, has excellent practical value, conducive to promoting the use of.
A kind of battery pack thermal management system thermal runaway of the present invention inhibits in the test device of efficiency, all conducting wires and sensing
The connection of device is the common knowledge of those skilled in the art.
In the description of the present invention, it is to be understood that the instructions such as term "front", "rear", " on ", " under ", "left", "right"
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not to the limit of the present invention
System, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art do not need to pay
Go out various modifications or changes that creative work can be made still within protection scope of the present invention.
Claims (10)
1. a kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency, it is characterized in that, a kind of battery pack heat management
System thermal runaway inhibits the test device of efficiency, including test department, battery thermal runaway trigger unit, battery status monitoring portion, urgent
Fire extinguishing portion, flue gas detecting system and intelligence control system；
The test department includes cuboid test box and is fixed on the testboard of cuboid test box bottom plate, the testboard packet
Include the Turbogrid plates for placing mesuring battary group and the L-type clamping plate of fixed mesuring battary group；
The battery thermal runaway trigger unit includes stainless steel heating tube, needle thorn pressurizing unit, battery charging and discharging tester；It is described not
Steel heating tube of becoming rusty is between cuboid test box bottom plate and Turbogrid plates；The top of the needle thorn pressurizing unit and cuboid test box
Plate is fixedly connected, and the needle thorn pressurizing unit, which is realized, to be pierced or squeeze to the needle of mesuring battary group；The battery charging and discharging test
Positive and negative anodes of the instrument through conducting wire and mesuring battary group are electrically connected；
The battery status test section includes temperature sensor, thermal imaging system；The temperature sensor is mounted on leading for L-type clamping plate
In wire casing；The thermal imaging system is arranged on the inside of cuboid test box, the alignment lens testboard of the thermal imaging system；
The instant fire extinguishment portion connect to realize instant fire extinguishment with test department；
The flue gas detecting system includes smoke discharging pipe, exhaust fume collecting hood, frequency conversion fan, filtrating equipment of flue gas, gas sampling probe, flue gas
Analytical equipment；The both ends of the smoke discharging pipe connect exhaust fume collecting hood and frequency conversion fan respectively, and the exhaust fume collecting hood is located at cuboid test
Inside case, the frequency conversion fan is located at flue gas analysis device top；The top of the frequency conversion fan is equipped with filtrating equipment of flue gas；Institute
Smoke discharging pipe is stated equipped with several gas sampling probes, the end of the gas sampling probe is connected to flue gas analysis device；
The intelligence control system include being integrated in heater box in Main Control Tank, multichannel temperature Acquisition Instrument, rack industrial personal computer,
Built-in industrial display and scram button；The heater box is connect with stainless steel heating tube；The multichannel temperature Acquisition Instrument
It is connect with temperature sensor；The input terminal of the rack industrial personal computer and multichannel temperature Acquisition Instrument, thermal imaging system, flue gas analysis
Device, battery charging and discharging tester connect respectively, and the output terminal of the rack industrial personal computer is connect with built-in industrial display；
The scram button can be achieved at the same time the emergent stopping of battery thermal runaway trigger unit and the emergency start in instant fire extinguishment portion.
2. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The front face of the cuboid test box is equipped with front door, and the front door and the front face of cuboid test box are hingedly connected
It connects, the movable end at the front door is equipped with handle；The middle part at the front door is equipped with glass window；The top of the cuboid test box
Square hole is provided on plate and connects the circular ventilation mouth of smoke discharging pipe, the left wall face of the cuboid test box is defeated equipped with connecting
The water delivery pore of water pipe, the right wall of the cuboid test box are perforated equipped with lead.
3. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The needle thorn pressurizing unit includes cover body, air-leg, draw point, pressing plate, the upper end of the air-leg and the internal face of cover body
It is fixedly connected, the lower end of the air-leg connects draw point or pressing plate, the cover body and cuboid test box by collet
Top plate is fixedly connected, and the air-leg passes through square hole to realize the movement to testboard；The cover body, which uses, has explosion-proof work(
The cast alloy steel of energy is made.
4. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The thermal imaging system shares two, and a thermal imaging system, the cuboid are equipped on the inside of the left wall face of the cuboid test box
A thermal imaging system is equipped on the inside of the top plate of test box.
5. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The instant fire extinguishment portion includes water tank, water pump, water-supply-pipe and spray head；The entrance and exit of the water pump connects water storage respectively
Case and water-supply-pipe, the water-supply-pipe are penetrated inside cuboid test box, the end connection spray head of the water-supply-pipe.
6. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The flue gas analysis device includes flue gas analysis case, and the end of the gas sampling probe is connected to inside flue gas analysis case；It is described
Multicomponent gas sensor and smoke sampling bag, end and the detection flue gas of part of smoke probe tube are equipped in flue gas analysis case
The multicomponent gas sensor connection of ingredient, concentration, toxicity, the end of another part gas sampling probe and the flue gas of storage flue gas
Sampling bag connects；The flue gas analysis device further includes the pressure transmitter of detection smoke sampling overpressure variation, the pressure
Power transmitter is differential pressure type pressure sensor；Flue gas flow probe is provided in the gas sampling probe.
7. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The output terminal of the rack industrial personal computer is also connect with needle thorn pressurizing unit, realizes the movement of air-leg in needle thorn pressurizing unit
Control；The output terminal of the rack industrial personal computer is also connect with water pump, realizes starting mode of pump and the control stopped；It is described embedded
Industrial display also has warning function.
8. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The temperature sensor is K-type armoured thermocouple.
9. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, it is characterized in that,
The cuboid test box uses the cast alloy steel with explosion prevention function to be made；The spray head uses high temperature resistant explosion-proof material
Matter.
10. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, feature
It is that the battery charging and discharging tester is the battery pack comprehensive parameter tester that the current/voltage upper limit is 150A/120V, described
Electric lead, the shell of battery charging and discharging tester be fire-proof insulation shell.
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