CN207798975U - A kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency - Google Patents

Abstract

The utility model discloses the test devices 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 utility model triggers thermal runaway to the Li-ion batteries piles for configuring or being not 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, the component and toxicity of voltage, electric current, heat production characteristic and generation flue gas of the battery pack before and after configuring heat management system, systematically thermal runaway occurs for test battery pack thermal management system the inhibition efficiency with sprawling, and realize to thermal runaway test may cause it is on fire efficiently put out, ensure personnel and equipment safety；Data and technical support can be provided for the reliability of assessment heat management system, safety simultaneously, the safety to improving electric vehicle is of great significance and excellent practical value.

Description

A kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency

Technical field

The utility model belongs to electric vehicle and energy-accumulating power station secondary cell technical field of measurement and test, and in particular to Yi Zhong electricity Pond group 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, there is also 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, to cause sprawling of the thermal runaway within the scope of entire battery pack.In this case, if it is 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, 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 come sprawling in battery pack after inhibiting battery that 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.

Currently, the thermal runaway abuse test device of monomer lithium ion battery has developed fairly perfect, however due to 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 to the battery pack configured with heat management system 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 make 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 the inhibition efficiency of thermal runaway, to improving the peace of electric vehicle Full property is of great significance.

Utility model content

The purpose of this utility model be to provide a kind of safe and reliable, high efficiency smart, measuring accuracy it is high for detect lithium from Sub- battery pack thermal management system thermal runaway inhibits the test device of efficiency, can be realized to lithium ion battery using the test device Puncture, extruding, heating, super-charge super-discharge, fast charging and discharging, pulse charge and discharge etc. are any or combination triggers battery thermal runaway, right It configures temperature of the battery pack before and after thermal runaway of heat management system, electric current, voltage to be monitored in real time, to electricity before and after thermal runaway The smoke components that pond group and its heat management system generate carry out qualitative and quantitative analysis with toxicity, the possibility fire caused to thermal runaway Calamity carries out high-effect fire-extinguishing, security control；By safety, controllable, accurately test, the utility model can be used for assessing, analyze electricity Pond group heat management system determines that battery pack and its heat management system may be brought after thermal runaway occurs to the inhibition efficiency of thermal runaway Harm, determine the reliability and security of battery pack thermal management system.

To achieve the above object, the utility model adopts the following technical solution：A kind of battery pack thermal management system thermal runaway Inhibit the test device of 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 test department includes cuboid test box and the testboard for being fixed on 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 monitoring portion 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 in the inside of cuboid test box, the alignment lens testboard of the thermal imaging system；

The instant fire extinguishment portion is connect with test department to realize instant fire extinguishment；

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 are separately connected exhaust fume collecting hood and frequency conversion fan, 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 sets；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 being integrated in Main Control Tank, multichannel temperature Acquisition Instrument, rack work 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 are separately connected, output end 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 It is provided with square hole 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 realizes the movement to testboard across square hole；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 at 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 is separately connected water tank and water-supply-pipe, and the water-supply-pipe penetrates 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 of storage flue gas；The flue gas analysis device further includes the pressure for detecting the variation of smoke sampling overpressure 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 end of the rack industrial personal computer is also connect with needle thorn pressurizing unit, realizes that needle pierces pressurizing unit The motion control of middle air-leg；The output end 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 utility model has the beneficial effects that：

(1) the utility model battery pack thermal management system thermal runaway inhibits the test device of efficiency to configuration (or being not configured) The Li-ion batteries piles of heat management system using various ways trigger thermal runaway, can simulate battery pack in electric vehicle be subjected to it is more Extreme, abuse condition is planted, safely, controllably realizes the Li-ion batteries piles thermal runaway to configuration (or being not configured) heat management system The detection with sprawling feature occurs, by obtaining temperature of the battery pack before and after configuring heat management system, voltage, electric current, heat production Thermal runaway occurs for characteristic and the component and toxicity for generating flue gas, system testing battery pack thermal management system the inhibition with sprawling Efficiency, and realize to thermal runaway test may cause it is on fire efficiently put out, ensure personnel and equipment safety.

(2) it can be assessment heat management that the utility model battery pack thermal management system thermal runaway, which inhibits the test device of efficiency, The reliability of system, safety provide data and technical support, and the safety to improving electric vehicle is of great significance, and has Excellent practical value, conducive to promoting the use of.

Description of the drawings

Fig. 1 is the structural schematic diagram for the test device that the utility model battery pack thermal management system thermal runaway inhibits efficiency；

Fig. 2 is the internal structure schematic diagram of the utility model cuboid test box；

Fig. 3 is the structural schematic diagram of the utility model testboard；

Fig. 4 is the structural schematic diagram of the utility model stainless steel heating tube；

Fig. 5 is the structural schematic diagram in the utility model instant fire extinguishment portion；

Fig. 6 is the structural schematic diagram that the utility model needle pierces pressurizing unit；

Fig. 7 is the structural schematic diagram of the utility model flue gas detecting system；

Wherein, 0-mesuring battary group；

1-test department, 11-cuboid test boxs, 111-front doors, 112-handles, 113-glass windows, 12-survey Test stand, 121-Turbogrid plates, 122-L-type clamping plates, 123-metallic channels, 124-aluminium alloy posts, 13-square holes, 14-is logical Air port, 15-water delivery pores, the perforation of 16-leads, 2-battery thermal runaway trigger units, 21-stainless steel heating tubes, 22-needles thorn Pressurizing unit, 221-cover bodies, 222-air-legs, 223-draw points, 224-pressing plates, 225-collets, 23-battery charge and discharges Electric tester, 3-thermal imaging systems, 4-instant fire extinguishment portions, 41-water tanks, 42-water pumps, 43-water-supply-pipes, 44-spray heads, 5-flue gas detecting systems, 51-smoke discharging pipes, 52-exhaust fume collecting hoods, 53-frequency conversion fans, 54-filtrating equipment of flue gas, 55-cigarettes Gas probe tube, 56-flue gas analysis devices, 561-flue gas analysis casees, 562-smoke sampling bags, 6-intelligence control systems, 61-heater boxes, 62-multichannel temperature Acquisition Instruments, 63-rack industrial personal computers, 64-built-in industrial displays, 65-is anxious Stop button, 66-Main Control Tanks.

Specific implementation mode

In order to allow the engineers and technicians of this field that the technical solution of the utility model is more clearly understood, with reference to attached The technical solution of the utility model is described in figure explanation and specific embodiment, it is clear that the embodiment stated is this reality With novel section Example, it is not all of.On this basis, this field engineers and technicians are not making creative, practicality The other embodiments obtained under the premise of novel labour, within scope of protection of the utility model.

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 Turbogrid plates 121 and fixed mesuring battary group 0 L-type clamping plate 122, the L-type clamping plate 122 shares four pieces, the L types folder Plate 122 is detachably connected with Turbogrid plates 121, wherein there is several bar shaped trepannings on Turbogrid plates 121, for fixing L clevis plates 122, to allow four pieces of L-shaped clamping plates 122 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 4,21 serpentine-like bending of the stainless steel heating tube is distributed, the stainless steel heating tube 21 is 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 by collet 25 connect draw point 23 or Pressing plate 24, collet 25 can install the draw point 23 of diameter in a certain range or the special pressure in constant weight and areal extent Plate 24；The cover body 21 is fixedly connected with the top plate of cuboid test box 11, and the air-leg 22 is realized across square hole 13 Movement to testboard 12 is realized and the needle of mesuring battary group 0 is pierced or squeezed；The battery charging and discharging tester 23 is worn through conducting wire It crosses lead perforation 16 to be electrically connected with the positive and negative anodes of mesuring battary group 0, super-charge super-discharge of the realization to mesuring battary group 0, fast charge It puts soon, the experiments such as pulse charge and discharge, while realizing the monitoring to voltage, electric current before and after 0 thermal runaway of mesuring battary group；

The battery status monitoring portion 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 realizes the monitoring that bulk temperature is distributed before and after battery thermal runaway to 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 of the smoke discharging pipe 51 connects exhaust fume collecting hood 52, the tail end of the smoke discharging pipe 53 Frequency conversion fan 53 is connected, is realized to mesuring battary group 0 before thermal runaway by smoke discharging pipe 51, exhaust fume collecting hood 52, frequency conversion fan 53 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 end of the fully developed position of turbulent flow in smoke discharging pipe 51, the gas sampling probe 55 is 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 with it is stainless Steel heating tube 21 connects, and realizes that the heating of stainless steel heating tube 21 and the control of heating time, the heater box 61 can be realized Heating and thermostatic control of the temperature between 50-900 DEG C；The multichannel temperature Acquisition Instrument 62 is connect with temperature sensor to adopt Collect temperature data, and transfers data to rack industrial personal computer 63 and analyzed and handled；The rack industrial personal computer 63 it is defeated Enter end to connect with multichannel temperature Acquisition Instrument 62, thermal imaging system 3, flue gas analysis device 56, battery charging and discharging tester 23 respectively, It realizes to test temperature, electric current, the detection of voltage and the analysis of smoke components；The output end of the rack industrial personal computer 63 with Built-in industrial display 64 is connected, and the built-in industrial display 64 is realized to 0 temperature of mesuring battary group, voltage, electric current Display with record and fume component analysis is checked；The scram button 65 can be achieved at the same time battery thermal runaway trigger unit The emergency start of 2 emergent stopping and instant fire extinguishment portion 4, for scram button 65 after pressing, intelligence control system 6, which executes, stops 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 the smoke sampling bag 562 of storage 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 is sampled into multicomponent gas sensor, is realized and is examined to smoke components, concentration variation and the analysis of toxicity 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 for detecting pressure change in 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 end 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 set, wherein air-leg 22 is connect by conducting wire with rack industrial personal computer 63, and machine is passed through Posture industrial personal computer 63 controls pneumatic thrust and speed, to realize to 0 needle of mesuring battary group thorn, squeeze；The rack industry control The output end of machine 63 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 can trigger insertion when collected performance data reaches alert if 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 all made of the cast alloy steel with explosion prevention function and are made； 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, and sequence can be arranged 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, specific implementation mode 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. needle pierce pressurizing unit 22 collet 225 on set-mounted diameter draw point 223；

B. the driving velocity and thrust that needle pierces air-leg 222 in 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 to mesuring battary group 0 or mesuring battary group 0 The needle of middle Individual cells pierces；

C. during the test, flue gas analysis device 56, thermal imaging system 3 are 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. needle pierce pressurizing unit 22 collet 225 on set-mounted area pressing plate 224；

B. the driving velocity and thrust that needle pierces air-leg 222 in 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 mesuring battary group 0 or mesuring battary group 0 The extruding of layout areas；

C. during the test, flue gas analysis device 56, thermal imaging system 3 are 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 the test, flue gas analysis device 56, thermal imaging system 3 are 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 waits for Survey 0 thermal runaway of battery pack；

B. during the test, flue gas analysis device 56, thermal imaging system 3 are 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 observing 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 and voltage, current characteristics of the battery pack of heat management system,

If a. triggering battery or thermal runaway, heat management system excellent not occurring in region adjacent battery；

If b. 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 optimize to it；

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 execute the order for stopping battery thermal runaway trigger unit 2 and opening instant fire extinguishment portion 4, to Instant fire extinguishment is carried out, until flame and flue gas are put out；It waits for that the temperature of battery pack, voltage and current are stablized in safe range, sees Test object is observed without other variations, after confirming that resume combustion, even explosion phenomenon no longer occur for 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.

The utility model battery pack thermal management system thermal runaway inhibits the test device of efficiency to configuration (or being not configured) heat The Li-ion batteries piles of management system using various ways trigger thermal runaway, can simulate battery pack in electric vehicle be subjected to it is a variety of Extremely, abuse condition, safety are controllably realized and are sent out the Li-ion batteries piles thermal runaway of configuration (or being not configured) heat management system The raw detection with sprawling feature, by obtaining temperature of the battery pack before and after configure heat management system, voltage, electric current, heat production spy Property and generate flue gas component and toxicity, system testing battery pack thermal management system to thermal runaway occur with spread inhibition imitate Can, and realize to thermal runaway test may cause it is on fire efficiently put out, ensure personnel and equipment safety.The utility model battery Group heat management system thermal runaway inhibits the test device of efficiency that can provide number for the reliability of assessment heat management system, safety According to and technical support, to improve electric vehicle safety be of great significance, have excellent practical value, make conducive to popularization With.

A kind of battery pack thermal management system thermal runaway of the utility model inhibits in the test device of efficiency, all conducting wires with The connection of sensor is the common knowledge of those skilled in the art.

In the description of the present invention, it should be understood that term "front", "rear", "upper", "lower", "left", "right" etc. The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this practicality newly Type, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation, Therefore it should not be understood as limiting the present invention.

It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly The limitation of type, those skilled in the art should understand that, based on the technical solution of the present invention, people in the art Member need not make the creative labor the various modifications or changes that can be made and be still within the scope of the present invention.

Claims (10)

1. a kind of battery pack thermal management system thermal runaway inhibits the test device of efficiency, 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 the testboard for being fixed on 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 needle the 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 monitoring portion 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 in the inside of cuboid test box, the alignment lens testboard of the thermal imaging system；

The instant fire extinguishment portion is connect with test department to realize instant fire extinguishment；

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 are separately connected exhaust fume collecting hood and frequency conversion fan, 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 It states smoke discharging pipe and is 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 the heater box being integrated 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 are separately connected, and the output end of the rack industrial personal computer is connect with built-in industrial display； The scram button can be achieved at the same time the emergency start of the emergent stopping and instant fire extinguishment portion of battery thermal runaway trigger unit.

2. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, 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 It is provided with square hole 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 right wall of the water delivery pore of water pipe, the cuboid test box is 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, characterized in that 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 realizes the movement to testboard across square hole；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, 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, 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 is separately connected water storage Case and water-supply-pipe, the water-supply-pipe penetrate inside cuboid test box, and the end of the water-supply-pipe connects spray head.

6. a kind of battery pack thermal management system thermal runaway as described in claim 1 inhibits the test device of efficiency, 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 flue gas of the end and storage flue gas of another part gas sampling probe Sampling bag connects；The flue gas analysis device further includes the pressure transmitter for detecting the variation of smoke sampling overpressure, 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, characterized in that The output end 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 end of the rack industrial personal computer is also connect with water pump, realizes the control of starting mode of pump and stopping；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, characterized in that The temperature sensor is K-type armoured thermocouple.

9. a kind of battery pack thermal management system thermal runaway as claimed in claim 5 inhibits the test device of efficiency, 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.