CN107768577A - Battery with blast resistance construction - Google Patents
Battery with blast resistance construction Download PDFInfo
- Publication number
- CN107768577A CN107768577A CN201610670976.9A CN201610670976A CN107768577A CN 107768577 A CN107768577 A CN 107768577A CN 201610670976 A CN201610670976 A CN 201610670976A CN 107768577 A CN107768577 A CN 107768577A
- Authority
- CN
- China
- Prior art keywords
- lid
- battery
- housing
- keeper
- blast resistance
- Prior art date
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000004880 explosion Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 239000002360 explosive Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
A kind of battery with blast resistance construction, includes；One housing, it is equipped with a battery module；One lid, it is covered on the housing；Multiple keepers, to connect the lid and the housing, the keeper can interlock lid displacement movement, and make between the lid and the housing formed with a first position and a second place, the first position is the state that the cover cap is located at the housing, and the second place be the battery module produce gas burst when, the rigidity of the lid and the housing is less than the strength of the gas eruption of explosion time, and the lid and the keeper is set to be shifted up with respect to the housing, and an at least communication port is formed, the communication port supplies high-temperature gas overflow outwardly.Thereby, the effect of present invention has simple structure, saves material and preferable security and be explosion-proof.
Description
Technical field
The present invention is relevant with a kind of battery, particularly relates to a kind of battery with blast resistance construction.
Background technology
Generally, in recent years, the composite oxides of lithium will be contained as positive electrode, be able to will inhale the lithium containing/release lithium ion-
The battery with nonaqueous electrolyte (being secondary lithium battery) as negative material such as aluminium alloy, carbon material.Also, with general common
For the electrokinetic cell of discharge and recharge, it further utilizes an electrical connection mainly in being provided with multiple lithium batteries in an encapsulating shell
Module then recycles two out splice going splices to connect the positive pole of each lithium battery and negative pole, connects electrical connection module, and
It is provided with exporting the electric power of the lithium battery.
But when above-mentioned electrokinetic cell is placed in hot environment or is handled by mistake, its internal pressure can also rise extremely
Height, so as to cause battery explosion；More in detail and it, when with the electric current higher than rated current to battery over charge, or, by mistake will
When the positive terminal and negative pole terminal shortcircuit of electrokinetic cell, the lithium battery can also produce a very big electric current, and electrolyte can decompose,
Gas is produced in encapsulating shell.If be filled with gas in encapsulating shell and can not discharge, then the internal pressure of electrokinetic cell
It can extremely raise, or even explode.
Also, for above-mentioned explosion issues, the processing mode of dealer is top cover one explosion-proof valve of setting in encapsulating shell now,
The explosion-proof valve is to wear an explosionproof hole in top cover, and last layer rupture pressure disc or explosion-proof metal foil can be also set on the explosionproof hole
Piece, use closing explosionproof hole.Therefore, when gas rapid expanding, gas can also break through the barrier of rupture pressure disc, to reach pressure release
Purpose.
But the explosion-proof valve of above-mentioned electrokinetic cell is arranged on the center of top cover mostly, explosion-proof valve is set to be located at higher position, and energy
Battery fluid seepage when avoiding battery horizontal；However, due to being a confined space in the encapsulating shell, and make the explosion-proof valve stress without
Homogeneity, and top cover is not provided with any buffering explosion precaution, it is upper also with potential dangerous in using.Such as：Gas
During expansion outburst, explosion-proof valve has little time internal gas pressure of releasing, so as to cause gas pressure to break through the top cover of the encapsulating shell
Or internal internal perisporium, and make the top cover or internal perisporium fragmentation and eruption.In addition, have another problem in above-mentioned explosion-proof valve, its
Problem is that explosion-proof sheet metal and rupture pressure disc are made very thin, and this just produces a problem, even one common is touched
Hit, sheet metal or rupture pressure disc are also easily broken off or ruptured, so as to which the problem of explosion-proof valve damages occur.
Therefore, inventor is after above-mentioned missing is observed, it is believed that the blast resistance construction of existing electrokinetic cell still has into one
Necessity of improvement is walked, and has the generation of the present invention then.
The content of the invention
It is an object of the invention to provide a kind of battery with blast resistance construction, and it can solve above-mentioned existing battery because explosion-proof
Produced by valve the shortcomings that potential explosion danger, and the present invention has simple structure, and can save the use cost of material, together
When, with more preferable security and it is explosion-proof the effect of.
For the above-mentioned purpose, the battery provided by the present invention with blast resistance construction, includes：One housing, it is arranged with
One storage tank, the storage tank is formed with an opening, and the storage tank has installed an at least battery module, the internal perisporium of the storage tank
Interval is convexly equipped with multiple projections, and the projection is adjacent to the opening, and the top side of the projection is equipped with a connecting hole；One lid, its
Top side is equipped with multiple perforation, and the perforation is to should connecting hole；And multiple keepers, its be correspondingly arranged in the connecting hole and
The perforation, and the lid and the housing are connected, and the keeper can interlock lid displacement movement, so that the lid and the shell
Formed with a first position and a second place between body, the first position is that the cover cap is located at the housing, and it is closed to form one
Space, and the second place is when the battery module produces gas burst, the rigidity of the lid and the housing is less than explosion time
Gas eruption strength so that the lid and the keeper shift up with respect to the housing, and the part knot of the keeper
Structure, which produces, collapses damage, when the second place, an at least communication port is formed between the lid and the housing, the communication port supplies high-temperature gas
Overflow outwardly.
It is preferred that one end of the keeper is plug division, and the other end is fixed part, and the plug division plugs and is in tight fit
In the connecting hole, and the fixed part is fixed on the perforation.
It is preferred that when the second place, the plug division is produced the damage that crumbles by explosive thrust, so that the lid stress interlocks
The keeper is shifted up with respect to the housing, and multiple communication ports are formed between the lid and the housing and the keeper.
It is preferred that the keeper is made up of plastic material.
It is preferred that the keeper is into bar shape, and the outer circumferential side spacer ring between the fixed part and the plug division is provided with more
Individual spacing raised line.
It is preferred that the keeper is into bar shape, and the outer circumferential side of the plug division is provided with external screw thread, and is set in the connecting hole
It is equipped with internal thread.
It is preferred that the lid is arranged with a groove, the internal perisporium of the groove to should projection be provided with multiple limited blocks, should
Limited block is equipped with an at least spacing hole respectively, and the spacing hole is mutually corresponding with the connecting hole, and the keeper is arranged in this and worn
Hole, the spacing hole and the connecting hole.
It is preferred that the projection is evenly distributed in the internal perisporium of the storage tank.
It is preferred that the battery module is made up of an at least battery.
Battery provided by the present invention with blast resistance construction, it is mainly less than using the rigidity of the lid and the housing
The strength of the gas eruption of explosion time, and the keeper is made up of plastic material, meanwhile, the keeper can interlock the lid
Displacement is moved, so that the lid and the housing be when the second place, the lid and the keeper can be with respect to the housings to upper
Move, and make and an at least communication port is formed between the lid and the housing, for high-temperature gas overflow outwardly.Thereby, the present invention simultaneously
It is not required to install explosion-proof valve, and can solves above-mentioned existing battery because produced by explosion-proof valve the shortcomings that potential explosion danger, and it is of the invention
With simple structure, and the use cost of material can be saved, meanwhile, with more preferable security and it is explosion-proof the effect of.
Brief description of the drawings
Fig. 1 is the stereoscopic figure of the first embodiment of the present invention；
Fig. 2 is the exploded perspective view of the first embodiment of the present invention；
Fig. 3 is the use state figure of the first embodiment of the present invention, with the display present invention in the aspect of the second place；And
Fig. 4 is the exploded perspective view of the second embodiment of the present invention.
Wherein, description of reference numerals is as follows：
10 housings
11 storage tanks
12 openings
13 battery modules
14 projections
141 connecting holes
142 internal threads
20 lids
21 perforation
22 limited blocks
221 spacing holes
23 grooves
30 keepers
31 plug divisions
32 fixed parts
33 spacing raised lines
34 external screw threads
40 communication ports
Embodiment
Refer to shown in Fig. 1 and Fig. 2, respectively the stereoscopic figure and exploded perspective view of the first embodiment of the present invention,
Its exposure has a kind of battery with blast resistance construction, should contain with the battery bag of blast resistance construction：
One housing 10, it is arranged with a storage tank 11, and the storage tank 11 is formed with an opening 12, and the storage tank 11 installs
There is an at least battery module 13, also, the internal perisporium interval of the storage tank 11 is convexly equipped with multiple projections 14, and the average mark of projection 14
The internal perisporium of the storage tank 11 is distributed in, meanwhile, the projection 14 is adjacent to the opening 12, and the top side of the projection 14 is equipped with a company
Connect hole 141.In the present embodiment, the battery module 13 is made up of one or more battery.
One lid 20, it is covered on the housing 10, and closes the opening 12, and the top side of the lid 20 is equipped with multiple wear
Hole 21, and 21 pairs of the perforation should connecting hole 141.In the present embodiment, the lid 20 is arranged with a groove 23, the groove 23
Internal perisporium to should projection 14 be provided with multiple limited blocks 22, the limited block 22 is equipped with an at least spacing hole 221, the limit respectively
Position hole 221 and the connecting hole 141 are mutually corresponding.
Multiple keepers 30, it is made up of plastic material, and the keeper 30 is into bar shape, the one of the keeper 30
Hold as plug division 31, and the other end is fixed part 32, the plug division 31 plugs and in tightly fitting in the connecting hole 141, and is somebody's turn to do
Fixed part 32 is fixed on the perforation 21, and in the present embodiment, the outer circumferential side spacer ring between the fixed part 32 and the plug division 31
Provided with multiple spacing raised lines 33, and the keeper 30 is corresponding and is arranged in the perforation 21, the spacing hole 221 and the connecting hole 141,
And the spacing raised line 33 connects the perforation 21, the spacing hole 221 and the connecting hole 141 to firm, so that the keeper 30 connects
Connect the lid 20 and the housing 10.
Also, in the present embodiment, the keeper 30 can interlock the displacement of lid 20 movement, so that the lid 20 and the shell
Formed with a first position and a second place between body 10, the first position is that the lid 20 is covered on the housing 10, and is formed
One confined space, and the second place is when the battery module 13 produces gas burst, due to the lid 20 and the housing 10
Rigidity be less than explosion time gas eruption strength, and the engaging force of the lid 20 and the keeper 30 be less than blast gas
Thrust, so that the plug division 31 of the keeper 30 is produced the damage that crumbles by explosive thrust, it is somebody's turn to do so that the stress of lid 20 interlocks
Keeper 30 shifts up with respect to the housing 10, and forms multiple streams between the lid 20 and the housing 10 and the keeper 30
Port 40, the communication port 40 supply high-temperature gas overflow outwardly.
For construction feature, application technology means and desired the effect of reaching for further appreciating that the present invention, hereby it incite somebody to action this
The occupation mode of invention is described, it is believed that when that can have therefrom to the present invention deeper into and specifically understand, as described below：
Please continue to refer to Fig. 1 and Fig. 2, and coordinate shown in Fig. 3, respectively the stereoscopic of the first embodiment of the present invention
Figure, exploded perspective view and display battery are in the use state figure of the second place.When normal state, as shown in figure 1, the lid 20
It is that the lid 20 is covered on the housing 10 when a first position between the housing 10, and forms a confined space；In addition, in
During two positions, as shown in figure 3, the gas that the present invention is mainly less than explosion time using the rigidity of the lid 20 and the housing 10 sprays
The characteristic of the strength of hair, and the keeper 30 is made up of plastic material, therefore, when battery produces high temperature explosion time, the lid
The engaging force of body 20 and the keeper 30 is less than the thrust gas of blast, so that the plug division 31 of the keeper 30 is pushed away by blast
Power produces the damage that crumbles；Importantly, the gas of explosion time extends out the average ejection lid 20 of thrust so that the lid 20 and
The keeper 30 can shift up with respect to the housing 10, and make and multiple communication ports 40 are formed between the lid 20 and the housing 10,
For high-temperature gas overflow outwardly, to reach the purpose of pressure release.
Thereby, the present invention and be not required to such as existing electrokinetic cell or rechargeable battery installing explosion-proof valve, and the present invention can more have
Effect ground solves above-mentioned existing battery because produced by explosion-proof valve the shortcomings that potential explosion danger, and the present invention has simple structure, and
And the use cost of material can be saved, meanwhile, with more preferable security and it is explosion-proof the effect of.
It is the exploded perspective view of the second embodiment of the present invention referring again to shown in Fig. 4.The present embodiment and first embodiment
To compare, its difference is, the keeper 30 is into bar shape, and the outer circumferential side of the plug division 31 is provided with external screw thread 34, and
Internal thread 142 is provided with the connecting hole 141.And the spiral shell of keeper 30 is located at the connector, uses and connect the lid 20 and be somebody's turn to do
Housing 10；Also, the keeper 30 of the present embodiment is made up of plastic material；More in detail and it, the same energy of the present embodiment
The shortcomings that reaching the potential explosion danger as produced by solving above-mentioned existing battery in first embodiment because of explosion-proof valve, and with compared with
Good security and it is explosion-proof the effect of.
It is noted that in above-described embodiment, when battery module 13 produces gas burst, the state in the second place
Under, make the position difference of the lid 20 when the gas that explosion time occurs extends out thrust, gas, which extends out thrust, makes the lid 20 extremely
A few part can shift up with respect to the housing 10, so as to form an at least communication port 40；More in detail and it, the communication port 40 is same
It can reach and high-temperature gas overflow outwardly is provided, and the effect of pressure release.
Hereby, then by the feature of the present invention and its attainable expected effect it is presented below：
The battery with blast resistance construction of the present invention, it is mainly less than quick-fried using the rigidity of the lid 20 and the housing 10
The strength of gas eruption when fried, and the keeper 30 is made up of plastic material, and the part-structure of the keeper 30
It can produce and collapse damage；Therefore, when battery module 13 produces gas burst, the lid 20 and the keeper 30 can be with respect to the housings 10
Shift up, and make and an at least communication port 40 is formed between the lid 20 and the housing 10, for high-temperature gas overflow outwardly.By
This, the present invention can solve above-mentioned existing battery because produced by explosion-proof valve the shortcomings that potential explosion danger, while simple with more constructing
It is single, and save the use cost of material, and with preferable security and it is explosion-proof the effect of.
But the preferable possible embodiments of the present invention are the foregoing is only, therefore such as using the explanation of the present invention
Equivalent structure change carried out by book and claims, ought to be included in the scope of the claims of the present invention.
Claims (9)
1. a kind of battery with blast resistance construction, it is characterised in that include：
One housing, it is arranged with a storage tank, and the storage tank is formed with an opening, and the storage tank has installed an at least battery mould
Block, the internal perisporium interval of the storage tank are convexly equipped with multiple projections, and the projection is adjacent to the opening, and the top side of the projection is equipped with
One connecting hole；
One lid, its top side are equipped with multiple perforation, and the perforation is to should connecting hole；And
Multiple keepers, it is correspondingly arranged in the connecting hole and the perforation, and connects the lid and the housing, and the keeper energy
Lid displacement movement is interlocked, so that formed with a first position and a second place between the lid and the housing, this first
Position is that the cover cap is located at the housing, and forms a confined space, and the second place is when the battery module produces gas
The rigidity of explosion time, the lid and the housing is less than the strength of the gas eruption of explosion time, so that the lid and the keeper
Shifted up with respect to the housing, and the part-structure of the keeper produces and collapses damage, when the second place, the lid and the housing it
Between form an at least communication port, the communication port supplies high-temperature gas overflow outwardly.
2. there is the battery of blast resistance construction as claimed in claim 1, it is characterised in that one end of the keeper is plug division,
And the other end is fixed part, the plug division plugs and is in tightly fit in the connecting hole, and the fixed part is fixed on the perforation.
3. as claimed in claim 2 have blast resistance construction battery, it is characterised in that when the second place, the plug division by
Explosive thrust produces the damage that crumbles, and is shifted up so that the lid stress interlocks the keeper with respect to the housing, and the lid
And multiple communication ports are formed between the housing and the keeper.
4. there is the battery of blast resistance construction as claimed in claim 2, it is characterised in that the keeper is by plastic material institute structure
Into.
5. there is the battery of blast resistance construction as claimed in claim 4, it is characterised in that the keeper is into bar shape, and should
Outer circumferential side spacer ring between fixed part and the plug division is provided with multiple spacing raised lines.
6. there is the battery of blast resistance construction as claimed in claim 4, it is characterised in that the keeper is into bar shape, and should
The outer circumferential side of plug division is provided with external screw thread, and is provided with internal thread in the connecting hole.
7. there is the battery of blast resistance construction as claimed in claim 1, it is characterised in that the lid is arranged with a groove, and this is recessed
The internal perisporium of groove to should projection be provided with multiple limited blocks, the limited block is equipped with an at least spacing hole, the spacing hole respectively
It is mutually corresponding with the connecting hole, and the keeper is arranged in the perforation, the spacing hole and the connecting hole.
8. there is the battery of blast resistance construction as claimed in claim 1, it is characterised in that the projection is evenly distributed in the storage tank
Internal perisporium.
9. there is the battery of blast resistance construction as claimed in claim 1, it is characterised in that the battery module is by an at least battery
Formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670976.9A CN107768577A (en) | 2016-08-16 | 2016-08-16 | Battery with blast resistance construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670976.9A CN107768577A (en) | 2016-08-16 | 2016-08-16 | Battery with blast resistance construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107768577A true CN107768577A (en) | 2018-03-06 |
Family
ID=61260980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610670976.9A Pending CN107768577A (en) | 2016-08-16 | 2016-08-16 | Battery with blast resistance construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107768577A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113924828A (en) * | 2019-06-13 | 2022-01-11 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| EP3890050A4 (en) * | 2018-11-27 | 2023-06-21 | Envision AESC Japan Ltd. | Battery case, vehicle comprising said battery case, and stationary type power storage device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054208U (en) * | 1989-06-24 | 1990-03-07 | 淄川采暖设备厂 | Multifunction accumulator battery |
| CN203398194U (en) * | 2013-06-19 | 2014-01-15 | 深圳市科达利实业股份有限公司 | Dual-protection explosion-proof equipment of power battery cover plate |
| CN204230332U (en) * | 2014-12-08 | 2015-03-25 | 王国柱 | A kind of battery case air releasing device |
| CN205944200U (en) * | 2016-08-16 | 2017-02-08 | 原道电子股份有限公司 | Battery with blast resistant construction |
-
2016
- 2016-08-16 CN CN201610670976.9A patent/CN107768577A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054208U (en) * | 1989-06-24 | 1990-03-07 | 淄川采暖设备厂 | Multifunction accumulator battery |
| CN203398194U (en) * | 2013-06-19 | 2014-01-15 | 深圳市科达利实业股份有限公司 | Dual-protection explosion-proof equipment of power battery cover plate |
| CN204230332U (en) * | 2014-12-08 | 2015-03-25 | 王国柱 | A kind of battery case air releasing device |
| CN205944200U (en) * | 2016-08-16 | 2017-02-08 | 原道电子股份有限公司 | Battery with blast resistant construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3890050A4 (en) * | 2018-11-27 | 2023-06-21 | Envision AESC Japan Ltd. | Battery case, vehicle comprising said battery case, and stationary type power storage device |
| CN113924828A (en) * | 2019-06-13 | 2022-01-11 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| CN113924828B (en) * | 2019-06-13 | 2024-04-30 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
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