CN207441905U - Cell safety detection device - Google Patents
Cell safety detection device Download PDFInfo
- Publication number
- CN207441905U CN207441905U CN201721429613.2U CN201721429613U CN207441905U CN 207441905 U CN207441905 U CN 207441905U CN 201721429613 U CN201721429613 U CN 201721429613U CN 207441905 U CN207441905 U CN 207441905U
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- CN
- China
- Prior art keywords
- babinet
- detection device
- pressure sensor
- safety detection
- cell safety
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a kind of cell safety detection device, including babinet, true module and first pressure sensor.True module is housed in babinet and including an actual battery and multiple false batteries, and together with one actual battery and the multiple false cell stacks, and the shape of each vacation battery is identical with the shape of actual battery.Actual battery has explosion-proof valve, and first pressure sensor is fixed on babinet, and the detector of first pressure sensor extend into the surface of the explosion-proof valve in babinet and positioned at actual battery.When thermal runaway occurs in actual battery, internal aerogenesis can directly impact babinet after breaking through explosion-proof valve；And first pressure sensor can directly detect the impact strength of actual battery aerogenesis.The impact strength of first pressure sensor detection can be supported to provide data using the safety and Protection of babinet, so as to targetedly be optimized to babinet, and then ensure that babinet will not destroy due to the impact of aerogenesis, improve the security performance of babinet.
Description
Technical field
The utility model is related to field of batteries more particularly to a kind of cell safety detection devices.
Background technology
In general, battery pack includes babinet and is housed in the in vivo battery modules of case, and battery modules include multiple batteries.
In order to ensure the security performance of battery pack, it is necessary to the battery modules to battery pack and in it do some safety and Protections, and
These protection Designs are needed depending on the characteristic (such as aerogenesis during thermal runaway) of battery.However, nowadays do security protection
It is designed without detecting data support accordingly, done safety and Protection is caused to compare blindly, there are larger risks.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of detections of cell safety to fill
It puts, the impact strength of battery producing gas can be detected, data support is provided for the safety and Protection of babinet.
To achieve these goals, the utility model provides a kind of cell safety detection device, including babinet, really
Module and first pressure sensor.True module is housed in babinet and including an actual battery and multiple false batteries, institute
It states together with an actual battery and the multiple false cell stacks, and each false shape of battery and the shape phase of actual battery
Together.Actual battery has explosion-proof valve, and first pressure sensor is fixed on babinet, and the detector of first pressure sensor is extend into
The surface of explosion-proof valve in babinet and positioned at actual battery.
The beneficial effects of the utility model are as follows：
It is internal acute when thermal runaway occurs in actual battery in cell safety detection device according to the present utility model
Strong aerogenesis, the gas of generation can directly impact babinet after breaking through explosion-proof valve；And the detector of first pressure sensor is located at really
The surface of the explosion-proof valve of battery can directly detect the impact strength of actual battery aerogenesis.First pressure sensor detects
To impact strength can be supported to provide data using the safety and Protection of babinet, so as to targetedly being optimized to babinet
Design, and then ensure that babinet will not destroy due to the impact of aerogenesis in practical applications, improve the security performance of babinet.
Description of the drawings
Fig. 1 is the schematic diagram according to the cell safety detection device of the utility model.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the sectional view that L-L makes along Fig. 1.
Wherein, the reference numerals are as follows：
1 babinet, 4 fixed block
The false module of 11 lower box 5
12 upper cover, 6 second pressure sensor
2 true module B1 actual batteries
3 first pressure sensor B11 explosion-proof valves
31 detector B2 vacation batteries
Specific embodiment
It is described in detail the cell safety detection device of the utility model with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 3, cell safety detection device according to the present utility model include babinet 1, true module 2 and
First pressure sensor 3.True module 2 is housed in babinet 1 and including an actual battery B1 and multiple false battery B2, described
One actual battery B1 and the multiple vacation battery B2 are stacked, and the shape of each false battery B2 is with actual battery B1's
Shape is identical.Actual battery B1 has explosion-proof valve B11, and first pressure sensor 3 is fixed on babinet 1, and first pressure sensor
3 detector 31 extend into the surface of the explosion-proof valve B11 in babinet 1 and positioned at actual battery B1.
Actual battery B1 includes housing and is contained in the in vivo electrode assembly of shell, available for charge and discharge；And false battery B2 can
Only there is external housing, without possessing the ability of charge and discharge.True module 2 further includes fixed actual battery B1 and false battery B2
Frame.
In cell safety detection device according to the present utility model, when there is thermal runaway in actual battery B1, inside
Violent aerogenesis, the gas of generation can directly impact babinet 1 after breaking through explosion-proof valve B11；And the detector 31 of first pressure sensor 3
Positioned at the surface of the explosion-proof valve B11 of actual battery B1, the impact strength of actual battery B1 aerogenesis can be directly detected.First
The impact strength that pressure sensor 3 detects can be supported to provide data using the safety and Protection of babinet 1, so as to specific aim
Babinet 1 is optimized (or corresponding armour is added on babinet 1), and then ensure babinet 1 in practical applications
It will not be destroyed due to the impact of aerogenesis, improve the security performance of babinet 1.
The aerogenesis of actual battery B1 sprays straight up after breaking through explosion-proof valve B11, maximum to the impact force of surface, because
The detector 31 of first pressure sensor 3 is set the surface of the explosion-proof valve B11 of actual battery B1 by this.
The cell safety detection device of the utility model is mainly for detection of babinet 1, and babinet 1 can be applied to battery pack.
In practical applications, usually contain multiple battery modules in babinet 1, each battery modules include it is multiple really can charge and discharge
Battery when one of battery thermal runaway, is just necessary to switch off the use of battery pack, to prevent battery pack from exploding.Therefore, originally
The cell safety detection device of utility model detect babinet 1 performance when, only need to be arranged inside an actual battery B1
Can, others are false battery B2, and false battery B2 can both fix actual battery B1, can also analog unit 1 using process
In truth, ensure detection accuracy and authenticity.
Furthermore it is possible to the impact of the actual battery B1 aerogenesis detected to the cell safety detection device of the utility model is strong
Degree carries out quantitative analysis, and the safety and Protection to use the battery pack of this actual battery B1 and battery modules provides data
It supports.
Babinet 1 includes the lower box 11 being tightly connected and upper cover 12, and first pressure sensor 3 is fixed on upper cover 12.Under
Babinet 11 and upper cover 12 can be bolted.
In detection process, since upper cover 12 can directly be impacted be subject to high-temperature gas, upper cover 12 is required to resistance to
High temperature and resistance to harsh thermal shock.Therefore upper cover 12 is preferably made of the steel with higher-strength and toughness, thickness 1mm-5mm.
The detector 31 of first pressure sensor 3 the explosion-proof valve 10mm-20mm apart from actual battery B1, preferably 15mm.It examines
Consider the accuracy and authenticity of the detection of first pressure sensor 3, it is desirable that the detector 31 of first pressure sensor 3 is as far as possible
Close to the explosion-proof valve B11 of actual battery B1, but when the aerogenesis of actual battery B1 breaks through explosion-proof valve B11, explosion-proof valve B11 may
Simultaneously destructive test first 31 is flown by punching, therefore, the detector 31 of first pressure sensor 3 is protected with the explosion-proof valve B11 of actual battery B1
Hold a certain distance, preferably 15mm.
In order to ensure the authenticity and accuracy of detection, the detector 31 of first pressure sensor 3 should be with actual battery B1
Explosion-proof valve B11 it is directly opposite.But babinet 1 (particularly upper cover 12) is whole relatively thin, under the aerogenesis impact of actual battery B1
Easily deform, the detector 31 of first pressure sensor 3 caused to shift, can not face explosion-proof valve B11, influence to examine
Survey result.Therefore, the cell safety detection device further includes：Fixed block 4 is fixed on 1 outer surface of babinet, and first pressure passes
Sensor 3 is fixed on fixed block 4.Fixed block 4 has larger weight, is effectively reduced aerogenesis of the babinet 1 in actual battery B1
Deformation under impact improves the accuracy and authenticity of detection.Fixed block 4 can be steel construction, and inside has through hole, the first pressure
Force snesor 3 is fixed to upper cover 12 after passing through the through hole.Fixed block 4 can be fixed to upper cover 12 by spot welding.
In practical applications, battery pack generally includes multiple battery modules.Therefore, in order to ensure detection authenticity and standard
True property, the cell safety detection device further include the multiple false modules 5 being arranged in babinet 1.The multiple vacation module 5 with it is true
Real module 2 is according to requiring to be arranged in babinet 1.False module 5 and true module 2 are same or similar in shape, for example, referring to Fig. 2,
Each vacation module 5 can be closed frame.Alternately, each false mould may include multiple false battery B2 being stacked, false battery
B2 can be fixed by a frame.
Although the impact that part of the babinet 1 directly over the explosion-proof valve B11 of actual battery B1 is subject to is maximum, babinet 1
Other parts can also be impacted.Therefore, the cell safety detection device further includes at least one second pressure sensor
6, babinet 1 is fixed on, and the detector of second pressure sensor 6 is extend into babinet 1.Second pressure sensor 6 is measurable true
The aerogenesis of real battery B1 is to the impact strength of 1 different position of babinet.Second pressure sensor 6 is set with first pressure sensor 3
Position and mode it is different, for example, referring to Fig. 1, the vertical top for being arranged on upper cover 12 of first pressure sensor 3, the second pressure
The front or side for the upper cover 12 that force snesor 6 can be set.The position of second pressure sensor 6 and quantity can be according to actual demands
It is adjusted.
The cell safety detection device may also include charging mechanism, is electrically connected with actual battery B1.Charging mechanism can be right
Actual battery B1 carries out overcharge, so that actual battery B1 thermal runaways, and then detect that the impact of actual battery B1 aerogenesis is strong
Degree.
The detection range of first pressure sensor 3 is 0MPa-100MPa, and Dynamic response 60kHz-250kHz is instantaneously held
It it is 1500 DEG C by temperature, the shell of first pressure sensor 3 is stainless steel.Since the high-temperature gas that actual battery B1 is generated is direct
It is injected on first pressure sensor 3, so first pressure sensor 3 is required to instantaneously bear high temperature.
The detection range of second pressure sensor 6 can be 0MPa-100MPa, Dynamic response 60kHz-250kHz, instantaneously
Bearing temperature is 1500 DEG C, and the shell of second pressure sensor 6 is stainless steel.
In the cell safety detection device, in the position of true module 2 and true module 2 position of actual battery B1
Putting can be adjusted according to demand, can so detect influences of the actual battery B1 in different position aerogenesis to babinet 1, pass through
After comparing, counting, data are provided support for the safety and Protection of battery pack and battery modules.
Claims (10)
1. a kind of cell safety detection device, which is characterized in that sensed including babinet (1), true module (2) and first pressure
Device (3)；
True module (2) is housed in babinet (1) and including an actual battery (B1) and multiple false batteries (B2), one
Actual battery (B1) and the multiple false battery (B2) are stacked, and the shape and actual battery (B1) of each false battery (B2)
Shape it is identical；
Actual battery (B1) has explosion-proof valve (B11), and first pressure sensor (3) is fixed on babinet (1), and first pressure senses
The detector (31) of device (3) extend into the surface of the explosion-proof valve (B11) in babinet (1) and positioned at actual battery (B1).
2. cell safety detection device according to claim 1, which is characterized in that babinet (1) is included under being tightly connected
Babinet (11) and upper cover (12), and first pressure sensor (3) is fixed on upper cover (12).
3. cell safety detection device according to claim 2, which is characterized in that upper cover (12) is formed from steel, and thickness is
1mm-5mm。
4. cell safety detection device according to claim 1 or 2, which is characterized in that the cell safety detection device
It further includes：Fixed block (4) is fixed on babinet (1) outer surface, and first pressure sensor (3) is fixed on fixed block (4).
5. cell safety detection device according to claim 1, which is characterized in that the cell safety detection device is also wrapped
The multiple false modules (5) being arranged in babinet (1) are included, and each false module (5) is closed frame.
6. cell safety detection device according to claim 1, which is characterized in that the cell safety detection device is also wrapped
The multiple false modules (5) being arranged in babinet (1) are included, and each false mould includes multiple false batteries (B2) being stacked.
7. cell safety detection device according to claim 1, which is characterized in that the cell safety detection device is also wrapped
At least one second pressure sensor (6) is included, is fixed on babinet (1), and the detector of second pressure sensor (6) extend into case
In body (1).
8. cell safety detection device according to claim 1, which is characterized in that the detection of first pressure sensor (3)
Explosion-proof valve (B11) 10mm-20mm of head (31) apart from actual battery (B1).
9. cell safety detection device according to claim 1, which is characterized in that the cell safety detection device is also wrapped
Charging mechanism is included, is electrically connected with actual battery (B1).
10. cell safety detection device according to claim 1, which is characterized in that the detection of first pressure sensor (3)
Scope is 0MPa-100MPa, and Dynamic response 60kHz-250kHz, instantaneous bearing temperature is 1500 DEG C, first pressure sensor
(3) shell is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429613.2U CN207441905U (en) | 2017-10-31 | 2017-10-31 | Cell safety detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429613.2U CN207441905U (en) | 2017-10-31 | 2017-10-31 | Cell safety detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441905U true CN207441905U (en) | 2018-06-01 |
Family
ID=62290627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721429613.2U Active CN207441905U (en) | 2017-10-31 | 2017-10-31 | Cell safety detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441905U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157903A (en) * | 2020-01-07 | 2020-05-15 | 华霆（合肥）动力技术有限公司 | Battery performance testing method, device and system |
| EP3757590A4 (en) * | 2019-04-30 | 2021-05-26 | Contemporary Amperex Technology Co., Limited | Thermal runaway detection circuit |
| CN116780009A (en) * | 2023-08-25 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
| CN116845406A (en) * | 2023-08-28 | 2023-10-03 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
-
2017
- 2017-10-31 CN CN201721429613.2U patent/CN207441905U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3757590A4 (en) * | 2019-04-30 | 2021-05-26 | Contemporary Amperex Technology Co., Limited | Thermal runaway detection circuit |
| CN111157903A (en) * | 2020-01-07 | 2020-05-15 | 华霆（合肥）动力技术有限公司 | Battery performance testing method, device and system |
| CN116780009A (en) * | 2023-08-25 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
| CN116780009B (en) * | 2023-08-25 | 2024-04-12 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
| CN116845406A (en) * | 2023-08-28 | 2023-10-03 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
| CN116845406B (en) * | 2023-08-28 | 2024-03-01 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
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