CN206773155U - Secondary cell thermal runaway test device - Google Patents
Secondary cell thermal runaway test device Download PDFInfo
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- CN206773155U CN206773155U CN201720317473.3U CN201720317473U CN206773155U CN 206773155 U CN206773155 U CN 206773155U CN 201720317473 U CN201720317473 U CN 201720317473U CN 206773155 U CN206773155 U CN 206773155U
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Abstract
The utility model discloses a kind of secondary cell thermal runaway test device, including：Casing is tested, the test chamber for being used for placing secondary cell sample is provided with the test box body；Air distribution system, the air distribution system connect with the test chamber, for gas pressure in the test chamber to be adjusted；Temperature control system, the temperature control system are used to carry out temperature adjustment to the test chamber；First temperature sensor, first temperature sensor are used for the position to be measured for being placed on secondary cell sample, and for being electrically connected with data acquisition equipment；And battery work system.The secondary cell thermal runaway test device, pressure, temperature can be provided and its wait controllable coupling environment Parameter Conditions, with this, it is available for studying the heat release characteristic and thermal runaway rule when secondary cell carries out discharge and recharge under controllable complicated air pressure, temperature and its coupling test environment.
Description
Technical field
It the utility model is related to the thermally safe field of secondary cell, more particularly to a kind of secondary cell thermal runaway test device.
Background technology
As catastrophic failure rises year by year caused by secondary cell thermal runaway, scientific knowledge secondary cell is in complicated work
Make the thermal runaway characteristic under state, and develop on this basis and optimize secondary cell thermal management technology have become it is current secondary
The vital task of battery industry circle.Secondary cell itself heat transfer process is influenceed by many factors, wherein by external environment
The fairly obvious such as higher environment temperature of influence or high power charging-discharging can directly result in secondary cell thermal runaway, cause
Spontaneous combustion is even exploded.It is traditional, for studying the thermal safety of secondary cell and the test device of thermal runaway rule provided
Controllable environment parameter is more single, can not complete the secondary cell thermal runaway test under the influence of complex environment, cause to secondary electricity
The research accuracy of pond thermal runaway characteristic is not high.
Utility model content
Based on this, it is necessary to provide a kind of secondary cell thermal runaway test device, the secondary cell thermal runaway test device
Secondary cell thermal runaway test under controllable coupling environment Parameter Conditions can be provided, improve research accuracy.
Its technical scheme is as follows：
A kind of secondary cell thermal runaway test device, including：
Casing is tested, the test chamber for being used for placing secondary cell sample is provided with the test box body；
Air distribution system, the air distribution system connect with the test chamber, for being carried out to gas pressure in the test chamber
Regulation；
Temperature control system, the temperature control system are used to carry out temperature adjustment to the test chamber；
First temperature sensor, first temperature sensor are used for the position to be measured for being placed on secondary cell sample, and
For being electrically connected with data acquisition equipment；And
Battery work system, the battery work system include battery charging and discharging case, voltmeter, ammeter, the first wire
And second wire, the two-port of the battery charging and discharging case pass through first wire, the second wire and secondary cell respectively
The positive pole of sample, negative pole connection, the ammeter are connected on first wire, and the voltmeter is connected in parallel on described first and led
Between line and the second wire, the voltmeter and ammeter are used to be electrically connected with data acquisition equipment.
In one of the embodiments, the test casing is included in the first end cap, the second end cap and both ends open
Empty main body, the middle cavity of the hollow body form the test chamber, the first end of first end cap and the hollow body
Be tightly connected, and the first end of first end cap and the hollow body is detachably connected, second end cap and it is described in
Second end of empty main body is tightly connected, and the second end of second end cap and the hollow body is detachably connected.
In one of the embodiments, the air distribution system includes compressed air source, vavuum pump, the first gas circuit, the second gas
Road, main gas circuit, measurement gas circuit and barometer, one end of the measurement gas circuit connect with the test chamber, the measurement gas circuit
The other end be provided with the barometer, one end of the main gas circuit connects with the test chamber, and the main gas circuit is close to the survey
One end of examination chamber is provided with air intake valve, and the other end of the main gas circuit is exhaust outlet, and the main gas circuit is close to the exhaust outlet
One end is provided with drain tap, and the compressed air source is connected by first gas circuit with the main gas circuit, first gas circuit
Air door is provided with, the vavuum pump is connected by second gas circuit with the main gas circuit, and second gas circuit is provided with
Vavuum pump valve.
In one of the embodiments, the secondary cell thermal runaway test device also includes waste gas gas circuit and gas sampling
Box, one end of the waste gas gas circuit connect with the test chamber, and the other end of the waste gas gas circuit is provided with the gas sampling box,
The waste gas gas circuit is provided with waste gas valve.
In one of the embodiments, the secondary cell thermal runaway test device also includes thermal camera, the survey
The observation cylinder that casing also includes being located on the outside of the hollow body is tried, the first end of the observation cylinder connects with the test chamber
It is logical, and the first end of the observation cylinder is corresponding with the placement position of secondary cell sample, the second end sealing of the observation cylinder
Sight glass is provided with, the thermal camera is located at front of the sight glass away from the hollow body.
In one of the embodiments, the temperature control system includes cavity heating tape and second temperature sensor,
The hollow body is heat carrier, and cavity heating tape uniform winding is on the outer wall of the hollow body, second temperature
Sensor is spent in the test chamber, and the second temperature sensor is used to be electrically connected with data acquisition equipment.
In one of the embodiments, the secondary cell thermal runaway test device also includes sealed wiring plug, described
Sealed wiring spigot seal is installed in the side wall of the hollow cylinder, and there are the sealed wiring plug multiple wires to connect
Head, the both ends of the conducting wire connector are respectively in the test chamber and outside test chamber, first temperature sensor, second
Temperature sensor by the conducting wire connector and data acquisition equipment wired connection, the battery charging and discharging case, ammeter,
Voltmeter is located at the outside of the test chamber, and first wire, the second wire realize the electricity by the conducting wire connector
The connection of pond battery charge and discharge box and secondary cell sample.
In one of the embodiments, the secondary cell thermal runaway test device also include support, frequency conversion axial flow fan,
Radome fairing, air velocity transducer and wind channel tube, the secondary cell thermal runaway test device possess hermetical testing pattern and open survey
Die trial formula,
When the sealed connection of the first end of first end cap and the hollow body, the second end cap and the hollow body
When second end is tightly connected, the secondary cell thermal runaway test device is in hermetical testing pattern；
When the dismounting of the first end of first end cap and the hollow body, the second end cap and the second of the hollow body
During the dismounting of end, the secondary cell thermal runaway test device is in open test pattern, and the radome fairing is hollow for both ends open
Structure, the first end of the radome fairing are arranged on the first end of the hollow body, and the middle cavity of the radome fairing with it is described
Test chamber is docked, and the wind channel tube is docked with second end of the radome fairing away from the hollow body, set in the wind channel tube
There is the frequency conversion axial flow fan, the branch is set up in the second end of the hollow body, and the support is described hollow for supporting
Main body, in the test chamber, the air velocity transducer is used to be electrically connected with data acquisition equipment the air velocity transducer.
The beneficial effects of the utility model are：
When the secondary cell thermal runaway test device is tested, secondary cell sample is placed on to the survey of test casing
Intracavitary is tried, air distribution system can carry out air pressure adjustment to test chamber, will be adjusted to default hyperbar value in test chamber as needed
Or default low pressure value etc., temperature control system can carry out temperature adjustment to test chamber, default temperature will be adjusted in test chamber
Angle value, battery charging and discharging case can provide default charge-discharge magnification value, preset voltage value or pre-set current value to secondary cell sample
Product carry out charging measurement or discharge test, and ammeter and voltmeter record the electric current of discharge and recharge, voltage and fed back in real time respectively
Data acquisition equipment, the first temperature sensor record the temperature change of the position to be measured of the secondary cell sample and feed back to data
Collecting device, it is easy to subsequently study the affecting laws of secondary cell thermal runaway.The secondary cell thermal runaway test dress
Put, it is possible to provide pressure, temperature and its controllable coupling environment Parameter Conditions, with this, be available for studying secondary cell in controllable complicated gas
The heat release characteristic and thermal runaway rule during different multiplying discharge and recharge are carried out under pressure, temperature and its coupling test environment, more
The nearly actual complex environmental condition of adjunction, improve the accuracy of research.
Brief description of the drawings
Fig. 1 is the structural representation of the secondary cell thermal runaway test device described in the utility model embodiment；
Fig. 2 is the structural representation of the test casing described in the utility model embodiment；
Fig. 3 is that the secondary cell thermal runaway test device described in the utility model embodiment is in when opening test pattern
Structural representation；
Fig. 4 is that the secondary cell thermal runaway test device described in the utility model embodiment is in when opening test pattern
Partial structural diagram.
Description of reference numerals：
100th, casing is tested, 110, test chamber, 120, battery clamp, 130, fixture locking nut, the 140, first end cap,
142nd, the first gas circuit binding post, the 144, second gas circuit binding post, the 146, the 3rd gas circuit binding post, the 150, second end cap, 160, in
Empty main body, 170, observation cylinder, 180, sight glass, 200, air distribution system, 210, compressed air source, 220, vavuum pump, 230,
First gas circuit, 232, air door, the 240, second gas circuit, 242, vavuum pump valve, 250, main gas circuit, 252, air intake valve,
254th, exhaust outlet, 256, drain tap, 260, measurement gas circuit, 270, barometer, 300, temperature control system, 310, cavity heating
Band, 320, second temperature sensor, the 400, first temperature sensor, 500, battery work system, 510, battery charging and discharging case,
520th, voltmeter, 530, ammeter, the 540, first wire, the 550, second wire, 600, waste gas gas circuit, 610, waste gas valve,
700th, gas sampling box, 800, thermal camera, 900, sealed wiring plug, 1000, support, 1100, frequency conversion axial flow fan,
1200th, radome fairing, 1300, air velocity transducer, 1400, wind channel tube, 10, secondary cell sample.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when,
In the absence of intermediary element.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes, it is unique embodiment to be not offered as.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of the Listed Items of one or more correlations.Term as used herein " first ", " second "
It is used to distinguish object Deng herein, but these objects should not be limited by these terms.
The structure of test casing 100 and its perspective view of test chamber 110 are illustrated in Fig. 2.As shown in Figure 1 and Figure 2, one
Kind secondary cell thermal runaway test device, including test casing 100, air distribution system 200, temperature control system 300, the first temperature
Sensor 400 and battery work system 500.The test for being used for placing secondary cell sample 10 is provided with the test casing 100
Chamber 110.The air distribution system 200 connects with the test chamber 110, for being carried out to the gas pressure in the test chamber 110
Regulation.The temperature control system 300 is used to carry out temperature adjustment to the test chamber 110.First temperature sensor 400
For being placed on the position to be measured of secondary cell sample 10, and for being electrically connected with data acquisition equipment.The battery work
System 500 includes battery charging and discharging case 510, voltmeter 520, ammeter 530, the first wire 540 and the second wire 550.Institute
The two-port of battery charging and discharging case 510 is stated respectively by first wire 540, the second wire 550 and secondary cell sample 10
Positive pole, negative pole connection.The ammeter 530 is connected on first wire 540.The voltmeter 520 is connected in parallel on described
Between first wire 540 and the second wire 550.The voltmeter 520 and ammeter 530 are used to electrically connect with data acquisition equipment
Connect.
When the secondary cell thermal runaway test device is tested, secondary cell sample 10 is placed on test casing
In 100 test chamber 110, air distribution system 200 can carry out air pressure adjustment to test chamber 110, as needed by test chamber 110
Default hyperbar value or default low pressure value etc. are adjusted to, temperature control system 300 can enter trip temperature tune to test chamber 110
Section, will be adjusted to preset temperature value in test chamber 110, battery charging and discharging case 510 can provide default charge-discharge magnification value, preset
Magnitude of voltage or pre-set current value carry out charging measurement or discharge test, ammeter 530 and voltmeter 520 to secondary cell sample 10
The record electric current of discharge and recharge, voltage and data acquisition equipment is fed back in real time respectively, it is secondary that the first temperature sensor 400 records this
The temperature change of the position to be measured of battery sample 10 simultaneously feeds back to data acquisition equipment, is easy to subsequently to secondary cell thermal runaway
Affecting laws are studied.The secondary cell thermal runaway test device, it is possible to provide pressure, temperature and its controllable coupling environment ginseng
Said conditions, with this, it is available for research secondary cell to carry out difference under controllable complicated air pressure, temperature and its coupling test environment
Heat release characteristic and thermal runaway rule during rate charge-discharge, are more nearly actual complex environmental condition, improve the accurate of research
Property.
In the present embodiment, the quantity of the first temperature sensor 400 is relative with the number of positions to be measured of secondary cell sample 10
Should, when secondary cell sample 10 position to be measured for it is multiple when, the first temperature sensor 400 correspond to it is multiple, and corresponding the
One temperature sensor 400 is arranged on corresponding position to be measured.Alternatively, first temperature sensor 400 is thermocouple, installation
Convenience, good pressure-resistant performance, measurement accuracy are high.Data acquisition equipment can be data collecting card, and online note is realized by computer
Record and data storage.
As shown in Fig. 2 the inwall of the test chamber 110 is provided with the battery clamp for being used for installing secondary cell sample 10
120, the battery clamp 120 is provided with the fixture locking nut 130 for being used for fixing secondary cell sample 10.Secondary cell sample
10 can be fixed on battery clamp 120 by fixture locking nut 130, and then secondary cell sample 10 can reliably be installed and put
It is placed in test chamber 110.In this implementation, battery clamp 120 is located at the middle part of test chamber 110, is easily installed and tests.
Further, the test casing 100 includes the hollow of the first end cap 140, the second end cap 150 and both ends open
Main body 160.The middle cavity of the hollow body 160 forms the test chamber 110.First end cap 140 and the hollow master
The first end of body 160 is tightly connected, and the first end of first end cap 140 and the hollow body 160 is detachably connected.Institute
The second end for stating the second end cap 150 and the hollow body 160 is tightly connected, and second end cap 150 and the hollow master
Second end of body 160 is detachably connected.Using said structure, the first end cap 140, the second end cap 150 and test casing 100 are removable
Connection is unloaded, is easy to secondary cell being placed into test chamber 110；And the first end cap 140, the second end cap 150 and hollow body 160
It is to be tightly connected during connection, can ensures that test chamber 110 has good air-tightness, ensures to carry out air pressure, temperature and its coupling
Cooperation maintains the set numerical value of test with the pressure in test chamber 110 during test, temperature, improves the accuracy of test.
In the present embodiment, the both ends of the hollow body 160 are flange flange structure.First end cap 140 is with
The flange plate structure of the first end matching of empty main body 160, the first end cap 140 pass through fastening bolt and hollow body 160 first
End is tightly connected.Second end cap 150 is the flange plate structure that is matched with the second end of hollow body 160, the second end cap 150
It is tightly connected by the second end of fastening bolt and hollow body 160.And then easy for installation, good sealing effect.Alternatively, institute
It is tubular structure to state hollow body 160, is easy to manufacture, structure is attractive in appearance.
Further, as shown in figure 1, the air distribution system 200 includes compressed air source 210, vavuum pump 220, the first gas
Road 230, the second gas circuit 240, main gas circuit 250, measurement gas circuit 260 and barometer 270.It is described measurement gas circuit 260 one end with
The test chamber 110 connects, and the other end of the measurement gas circuit 260 is provided with the barometer 270.The one of the main gas circuit 250
End connects with the test chamber 110, and the main gas circuit 250 is provided with air intake valve 252 close to one end of the test chamber 110.Institute
The other end for stating main gas circuit 250 is exhaust outlet 254, and the main gas circuit 250 is provided with air bleeding valve close to one end of the exhaust outlet 254
Door 256.The compressed air source 210 is connected by first gas circuit 230 with the main gas circuit 250.First gas circuit 230
It is provided with air door 232.The vavuum pump 220 is connected by second gas circuit 240 with the main gas circuit 250.Described
Two gas circuits 240 are provided with vavuum pump valve 242.In the present embodiment, the compressed air source 210 can be high pressure air bottle.
Using said structure, vavuum pump 220 is used for the hypobaric test for providing secondary cell sample 10, compressed air
Source 210 is used for the hyperbaric environment test for providing secondary cell sample 10, when hyperbar test to be carried out, in test chamber 110
After inside placing secondary cell sample 10, vavuum pump valve 242 and drain tap 256 are closed, opens air door 232 and air inlet
Valve 252, the pressure-air in compressed air source 210 is flowed into test chamber 110, treat that the reading of barometer 270 reaches default height
Air door 232 and air intake valve 252 are closed during atmospheric pressure value；When low pressure test to be carried out, placed in test chamber 110
After secondary cell sample 10, air door 232 and drain tap 256 are closed, opens vavuum pump valve 242 and air intake valve 252,
Vavuum pump 220 is opened, air intake valve 252 and vavuum pump 220 are closed when the reading of barometer 270 reaches default low pressure value.Enter
And can be achieved to the air pressure adjustment in test chamber 110, and it is easy to operate.In addition, the opening and closing by controlling drain tap 256, one
It aspect, can play a part of finely tuning air pressure, when air pressure is slightly higher or lower slightly compared to preset pressure value in test chamber 110, can beat
Drive air valve 252 into and carry out appropriate pressure release so that the reading of barometer 270 returns preset pressure value with drain tap 256；The opposing party
Face, when air intake valve 252 is closed, by opening drain tap 256, exhaust outlet 254 can be by main gas circuit 250, the first gas circuit
230 and the second inner unnecessary gas discharge of gas circuit 240, ensure the security of equipment.
Alternatively, first gas circuit 230, the second gas circuit 240, main gas circuit 250 use stainless steel gas of the internal diameter for 5mm
Pipe, possesses certain plasticity and hardness.In addition, on the premise of convenient operate each gas circuit moderate length, gas can be avoided to exist
Cause to waste in gas path pipe.
Further, the secondary cell thermal runaway test device also includes waste gas gas circuit 600 and gas sampling box 700.
One end of the waste gas gas circuit 600 connects with the test chamber 110, and the other end of the waste gas gas circuit 600 is provided with the waste gas
Disposable box 700.The waste gas gas circuit 600 is provided with waste gas valve 610.And then after test terminates, waste gas valve can be opened
610, the waste gas in test chamber 110 is discharged into gas sampling box 700, be easy to subsequently be further analyzed processing.
As shown in Figure 1 and Figure 2, the secondary cell thermal runaway test device also includes thermal camera 800.The test
Casing 100 also includes the observation cylinder 170 located at the outside of hollow body 160.The first end of the observation cylinder 170 and institute
State test chamber 110 to connect, and the first end of the observation cylinder 170 is corresponding with the placement position of secondary cell sample 10.The sight
The the second end sealed set for examining cylinder 170 has sight glass 180.The thermal camera 800 is remote located at the sight glass 180
From the front of the hollow body 160.Using said structure, thermal camera 800 can be utilized to be recorded through sight glass 180
The surface temperature field of the secondary cell sample 10 is deduced, and with this, can further study secondary cell in complicated air pressure and temperature ring
Under border, heat development characteristic and thermal runaway rule during discharge and recharge are carried out with different multiplying.In addition, in follow-up study, it is infrared
The data of the record of video camera 800, the data that the first temperature sensor 400 of the specific position to be measured of secondary cell records are arranged on,
And can mutually cooperate between the waste gas data collected in gas sampling box 700, mutually confirm, easily facilitate researcher and draw
The thermal runaway rule of secondary cell.In the present embodiment, the sight glass 180 is high temperature resistant, the implosion guard of high pressure.
Further, the temperature control system 300 includes cavity heating tape 310 and second temperature sensor 320.Institute
It is heat carrier to state hollow body 160.The uniform winding of cavity heating tape 310 is on the outer wall of the hollow body 160.It is described
Second temperature sensor 320 is in the test chamber 110, and the second temperature sensor 320 is used for and data acquisition equipment
It is electrically connected with.Using said structure, cavity heating tape 310 can heat to hollow body 160, and then to test chamber 110
Temperature adjustment is inside realized, second temperature sensor 320 can be monitored to the temperature in test chamber 110 and feed back to data and adopt
Collect equipment, and then linkage carries out the temperature adjustment of test chamber 110 together with cavity heating tape 310 so that reach in test chamber 110
Preset temperature value, and temperature adjusting is accurate；By using cavity heating tape 310, and by the uniform winding of cavity heating tape 310 in
On the outer wall of empty main body 160, cavity heating tape 310 can effectively ensure that different in test chamber 110 to the homogeneous heating of test chamber 110
The temperature of position is consistent, and further improves the accuracy of test.
In the present embodiment, the outer layer of cavity heating tape 310 is heat-insulating material, can reduce the thermal loss of test chamber 110,
Maintain to be in preset temperature value in test chamber 110, and reduce energy consumption.Alternatively, the second temperature sensor 320 is thermoelectricity
Even, easy for installation, good pressure-resistant performance, measurement accuracy are high.The second temperature sensor 320 is three, and three second temperatures pass
Sensor 320 is respectively arranged on the upper, middle and lower of test chamber 110.And then it can preferably measure the temperature in test chamber 110
Degree.Specifically, when judging whether to reach preset temperature value, it can use the average value of three second temperature sensors 320.
The hollow body 160, the first end cap 140 and the second end cap 150 are stainless steel, good heat conductivity, by force
Degree is higher, and the sealing and compressive resistance of test casing 100 are preferable, available for the secondary cell heat under various extreme environmental conditions
Performance test out of control.
In the present embodiment, the secondary cell thermal runaway test device also includes sealed wiring plug 900.The sealing connects
Line plug 900 is seal-installed in the side wall of the hollow cylinder.The sealed wiring plug 900 connects with multiple wires
Head.The both ends of the conducting wire connector are respectively in the test chamber 110 and outside test chamber 110.First TEMP
Device 400, second temperature sensor 320 pass through the conducting wire connector and data acquisition equipment wired connection.The battery fills
Discharge tank 510, ammeter 530, voltmeter 520 are located at the outside of the test chamber 110.First wire 540, the second wire
550 realize the connection of the battery charging and discharging case 510 and secondary cell sample 10 by the conducting wire connector.It is close by setting
Connection plug 900 is sealed, is easy to the element in test chamber 110 to realize wired connection with the element outside test chamber 110, and
Carry out being to seal in succession during wired connection, it is ensured that the air-tightness that test chamber 110 has had.
Specifically, the sealed wiring plug 900 includes non-conductor base and more on the non-conductor base
Individual conducting wire connector.Alternatively, non-conductor base can be ceramic base, and conducting wire connector can be the gold for possessing conducting function
Belong to post such as copper rod etc..Non-conductor base can be directly embedded in the side wall of hollow cylinder by helicitic texture.Sealed wiring is inserted
First 900 quantity can be arranged as required to for one, it is two or more, be easy to implement preferable wiring.It is described in the present embodiment
Sealed wiring plug 900 is two, and two sealed wiring plugs 900 are respectively arranged on the top of test chamber 110, bottom, are connect
During line, each wire is not easy chaotic knotting, easy to operate.
Further, as shown in figure 3, the secondary cell thermal runaway test device also includes support 1000, frequency conversion axle stream
Blower fan 1100, radome fairing 1200, air velocity transducer 1300 and wind channel tube 1400.The secondary cell thermal runaway test device possesses
Hermetical testing pattern and open test pattern.As shown in Figure 1 and Figure 2, when first end cap 140 and the hollow body 160
First end is tightly connected, and when the second end of the second end cap 150 and the hollow body 160 is tightly connected, secondary cell heat is lost
Control test device is in hermetical testing pattern, using the teaching of the invention it is possible to provide pressure, temperature and its waits controllable coupling environment Parameter Conditions, is available for grinding
Study carefully heat release when secondary cell carries out different multiplying discharge and recharge under controllable complicated air pressure, temperature and its coupling test environment
Characteristic and thermal runaway rule.
And when the first end of first end cap 140 and the hollow body 160 is dismantled, the second end cap 150 with it is described in
During the second end dismounting of empty main body 160, the secondary cell thermal runaway test device is in open test pattern.Such as Fig. 3, Fig. 4 institute
Show, the radome fairing 1200 is the hollow structure of both ends open, and the first end of the radome fairing 1200 is arranged on the hollow master
The first end of body 160, and the middle cavity of the radome fairing 1200 docks with the test chamber 110, the wind channel tube 1400 and institute
State second end docking of the radome fairing 1200 away from the hollow body 160.The frequency conversion axle stream is provided with the wind channel tube 1400
Blower fan 1100.The support 1000 is located at the second end of the hollow body 160, and the support 1000 is described hollow for supporting
Main body 160, hollow body 160 is lifted away from ground or desktop so that the second end of hollow body 160 is circulation status.The wind
In the test chamber 110, the air velocity transducer 1300 is used to be electrically connected with data acquisition equipment fast sensor 1300.
In the present embodiment, the support 1000 is adjustable support 1000, can adjust the height of hollow body 160 as needed
Degree.Alternatively, the support 1000 is more adjusting screws, and the second end of hollow body 160 is provided with multiple screwed holes, passes through tune
Height of the adjusting screw in screwed hole is saved, the regulation to the height of hollow body 160 can be achieved, it is simple in construction, it is easy to operate.Institute
It is anemobiagraph to state air velocity transducer 1300, easy for installation, measurement accuracy is high.The air velocity transducer 1300 could be arranged to more
It is individual, air speed value that can be in more accurate measurement test chamber 110.The first end of the radome fairing 1200 is convex located at adpting flange
Edge, adpting flange flange can be connected with the flange flange structure of hollow body, and then cause radome fairing 1200 by fastening spiral shell
Bolt is reliably connected with hollow body 160.
When the secondary cell thermal runaway test device of the present embodiment is in open test pattern, test chamber can be adjusted
Flow field change in 110, so heat release characteristic when realization secondary cell carries out discharge and recharge under controllable flow fields environment with
And thermal runaway rule.The operation principle for open test pattern is：Secondary cell sample 10 is placed on test casing 100
In test chamber 110, open frequency conversion axial flow fan 1100 and adjust the watt level of frequency conversion axial flow fan 1100, make air velocity transducer
1300 reading reaches default air speed value scope, keeps the power of frequency conversion axial flow fan 1100, and battery charging and discharging case 510 is opened and carried
Charging measurement is carried out to secondary cell sample 10 for default charge-discharge magnification value, preset voltage value or pre-set current value or electric discharge is surveyed
Examination, ammeter 530 and voltmeter 520 electric current of record discharge and recharge in real time, voltage and feed back to data acquisition equipment respectively, and first
Temperature sensor 400 records the temperature change of the position to be measured of the secondary cell sample 10 and feeds back to data acquisition equipment, i.e.,
The test to secondary cell sample 10 can be achieved.
As shown in Figure 1 and Figure 2, the end cap 150 of the first end cap 140 or second, which is provided with, runs through the first gas circuit of its own
Binding post 142, the second gas circuit binding post 144 and the 3rd gas circuit binding post 146.One end of the main gas circuit 250 passes through described
First gas circuit binding post 142 connects with the test chamber 110.One end of the measurement gas circuit 260 is connect by second gas circuit
Terminal 144 connects with the test chamber 110.One end of the waste gas gas circuit 600 passes through the 3rd gas circuit binding post 146 and institute
Test chamber 110 is stated to connect.The situation that each binding post is located on the first end cap 140 is illustrated in the accompanying drawing of the present embodiment.Using
Said structure, on the one hand, it is convenient, reliable that each gas circuit connects with test chamber 110；On the other hand, when need dismantle the first end cap
140th, when the second end cap 150 is to carry out opening test pattern, by dismantling the first end cap 140, the second end cap 150, air distribution system
200 and waste gas gas circuit 600 also correspond to disassemble, it is easy to operate.
Secondary cell thermal runaway test device described in the present embodiment, there is hermetical testing pattern and open test pattern two
Kind pattern.When carrying out hermetical testing pattern, pressure and temperature in test chamber 110 can adjust, there is provided pressure, temperature and its wait can
Control coupling environment Parameter Conditions, with this, it is available for studying secondary cell in controllable complicated air pressure, temperature and its coupling test wrapper
The heat release characteristic and thermal runaway rule during discharge and recharge are carried out under border；When carrying out opening test pattern, it can adjust in test chamber 110
Flow field velocity, using the teaching of the invention it is possible to provide pressure controllable couple environment Parameter Conditions, and then be available for study secondary cell in controllable flow field ring
The heat release characteristic and thermal runaway rule during discharge and recharge are carried out under border.The secondary cell thermal runaway test device, it is possible to provide no
Test environment under same air pressure, different temperatures, the effect of different flow fields, research secondary cell can be achieved in controllable complicated air pressure, temperature
The heat release characteristic and thermal runaway rule during discharge and recharge are carried out under degree, flow field and its coupling, is especially applicable for carrying out non-
The thermal runaway test of lithium ion battery under conventional extremely complicated environmental condition；It is convenient to test 100 each component combination of casing, can be with
The switching of test pattern is rapidly completed, it is easy to operate.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
- A kind of 1. secondary cell thermal runaway test device, it is characterised in that including：Casing is tested, the test chamber for being used for placing secondary cell sample is provided with the test box body；Air distribution system, the air distribution system connect with the test chamber, for gas pressure in the test chamber to be adjusted；Temperature control system, the temperature control system are used to carry out temperature adjustment to the test chamber；First temperature sensor, first temperature sensor is used for the position to be measured for being placed on secondary cell sample, and is used for It is electrically connected with data acquisition equipment；AndBattery work system, the battery work system include battery charging and discharging case, voltmeter, ammeter, the first wire and Second wire, the two-port of the battery charging and discharging case pass through first wire, the second wire and secondary cell sample respectively Positive pole, negative pole connection, the ammeter is connected on first wire, the voltmeter be connected in parallel on first wire with Between second wire, the voltmeter and ammeter are used to be electrically connected with data acquisition equipment.
- 2. secondary cell thermal runaway test device according to claim 1, it is characterised in that the test casing includes the The hollow body of one end cap, the second end cap and both ends open, the middle cavity of the hollow body forms the test chamber, described The first end of first end cap and the hollow body is tightly connected, and the first end of first end cap and the hollow body can Dismantling connection, the second end of second end cap and the hollow body are tightly connected, and second end cap with it is described hollow Second end of main body is detachably connected.
- 3. secondary cell thermal runaway test device according to claim 2, it is characterised in that the air distribution system includes pressure Contracting air-source, vavuum pump, the first gas circuit, the second gas circuit, main gas circuit, measurement gas circuit and barometer, the one of the measurement gas circuit End connects with the test chamber, and the other end for measuring gas circuit is provided with the barometer, one end of the main gas circuit with it is described Test chamber connects, and the main gas circuit is provided with air intake valve close to one end of the test chamber, and the other end of the main gas circuit is row Gas port, the main gas circuit are provided with drain tap close to one end of the exhaust outlet, and the compressed air source passes through first gas Road connects with the main gas circuit, and first gas circuit is provided with air door, and the vavuum pump passes through second gas circuit and institute Main gas circuit connection is stated, second gas circuit is provided with vavuum pump valve.
- 4. secondary cell thermal runaway test device according to claim 2, it is characterised in that also including thermal camera, The test casing also includes the observation cylinder on the outside of the hollow body, the first end of the observation cylinder and the survey Chamber connection is tried, and the first end of the observation cylinder is corresponding with the placement position of secondary cell sample, the second of the observation cylinder End sealed set has sight glass, and the thermal camera is located at front of the sight glass away from the hollow body.
- 5. the secondary cell thermal runaway test device according to claim any one of 2-4, it is characterised in that the temperature control System processed includes cavity heating tape and second temperature sensor, and the hollow body is heat carrier, and the cavity heating tape is equal Even to be wrapped on the outer wall of the hollow body, the second temperature sensor is in the test chamber, the second temperature Sensor is used to be electrically connected with data acquisition equipment.
- 6. secondary cell thermal runaway test device according to claim 5, it is characterised in that also inserted including sealed wiring Head, the sealed wiring spigot seal are installed in the side wall of the hollow cylinder, and the sealed wiring plug has multiple lead Line connector, the both ends of the conducting wire connector are respectively in the test chamber and outside test chamber, first TEMP Device, second temperature sensor by the conducting wire connector and data acquisition equipment wired connection, the battery charging and discharging case, Ammeter, voltmeter are located at the outside of the test chamber, and first wire, the second wire are realized by the conducting wire connector The connection of the battery charging and discharging case and secondary cell sample.
- 7. the secondary cell thermal runaway test device according to claim any one of 2-4, it is characterised in that also include branch Frame, frequency conversion axial flow fan, radome fairing, air velocity transducer and wind channel tube, the secondary cell thermal runaway test device possess closed Test pattern and open test pattern,When the sealed connection of the first end of first end cap and the hollow body, the second end cap and the second of the hollow body When end is tightly connected, the secondary cell thermal runaway test device is in hermetical testing pattern；When the first end of first end cap and the hollow body is dismantled, the second end of the second end cap and the hollow body is torn open When unloading, the secondary cell thermal runaway test device is in open test pattern, and the radome fairing is the hollow structure of both ends open, The first end of the radome fairing is arranged on the first end of the hollow body, and the middle cavity of the radome fairing and the test chamber Docking, the wind channel tube dock with the second end of the radome fairing away from the hollow body, are provided with the wind channel tube described Frequency conversion axial flow fan, the branch are set up in the second end of the hollow body, and the support is used to support the hollow body, institute Air velocity transducer is stated in the test chamber, the air velocity transducer is used to be electrically connected with data acquisition equipment.
- 8. secondary cell thermal runaway test device according to claim 1, it is characterised in that also including waste gas gas circuit and give up Gas disposable box, one end of the waste gas gas circuit connect with the test chamber, and the other end of the waste gas gas circuit is provided with the waste gas Disposable box, the waste gas gas circuit are provided with waste gas valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317473.3U CN206773155U (en) | 2017-03-29 | 2017-03-29 | Secondary cell thermal runaway test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317473.3U CN206773155U (en) | 2017-03-29 | 2017-03-29 | Secondary cell thermal runaway test device |
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| CN206773155U true CN206773155U (en) | 2017-12-19 |
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| CN201720317473.3U Expired - Fee Related CN206773155U (en) | 2017-03-29 | 2017-03-29 | Secondary cell thermal runaway test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842062A (en) * | 2017-03-29 | 2017-06-13 | 广州中国科学院工业技术研究院 | Secondary cell thermal runaway test device and its method of testing |
| CN108828457A (en) * | 2018-07-27 | 2018-11-16 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN108872877A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN109164393A (en) * | 2018-07-27 | 2019-01-08 | 清华大学 | Battery thermal runaway experimental provision, system and method |
| CN111025152A (en) * | 2019-11-27 | 2020-04-17 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Method for testing voltage withstanding performance of lithium ion battery |
| CN111103404A (en) * | 2019-12-23 | 2020-05-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111864283A (en) * | 2020-08-11 | 2020-10-30 | 东北大学 | Enclosed lithium ion battery pack heat abuse experimental device and method |
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2017
- 2017-03-29 CN CN201720317473.3U patent/CN206773155U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842062A (en) * | 2017-03-29 | 2017-06-13 | 广州中国科学院工业技术研究院 | Secondary cell thermal runaway test device and its method of testing |
| CN108828457A (en) * | 2018-07-27 | 2018-11-16 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN108872877A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN109164393A (en) * | 2018-07-27 | 2019-01-08 | 清华大学 | Battery thermal runaway experimental provision, system and method |
| CN111025152A (en) * | 2019-11-27 | 2020-04-17 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Method for testing voltage withstanding performance of lithium ion battery |
| CN111025152B (en) * | 2019-11-27 | 2022-02-18 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Method for testing voltage withstanding performance of lithium ion battery |
| CN111103404A (en) * | 2019-12-23 | 2020-05-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111103404B (en) * | 2019-12-23 | 2023-12-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111864283A (en) * | 2020-08-11 | 2020-10-30 | 东北大学 | Enclosed lithium ion battery pack heat abuse experimental device and method |
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