CN207021346U - Lithium ion battery fire-retarding device - Google Patents
Lithium ion battery fire-retarding device Download PDFInfo
- Publication number
- CN207021346U CN207021346U CN201720900773.4U CN201720900773U CN207021346U CN 207021346 U CN207021346 U CN 207021346U CN 201720900773 U CN201720900773 U CN 201720900773U CN 207021346 U CN207021346 U CN 207021346U
- Authority
- CN
- China
- Prior art keywords
- collet
- liner
- ion battery
- protection coating
- flange
- 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.)
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Classifications
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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
Abstract
The utility model provides lithium ion battery fire-retarding device, and fire-retarding device has the lithium-ion battery monomer Package casing of anti-flaming function, and it includes liner, endothermic ring, collet and external protection coating successively from the inside to the outside；The material of liner is polytetrafluoroethylmaterial material, endothermic ring is to wind around the helical form copper wire on the outside of liner, collet is in close contact with copper wire, the material of collet is melamine thermosetting foams fire proofing, protection outside directly contacts with collet, the material polypropylene flame redardant of collet, the bushing of liner, endothermic ring, the height of collet and external protection coating are equal；Liner include bushing and with the integrally formed flange of bushing, flange is located at the upper surface of endothermic ring, collet and external protection coating, the width of flange is equal to the gross thickness of the bushing, endothermic ring, collet and external protection coating, and flange is connected with external protection coating by laser welding.The beneficial effects of the utility model are：The design structure is simple, be easy to production and fire resistance is good.
Description
Technical field
Technical field of lithium ion is the utility model is related to, more particularly, to lithium ion battery fire-retarding device.
Background technology
With battery industry and continue to develop, energy density is high, advantages of environment protection because it has for lithium ion battery
And it is widely used in the fields such as electric automobile, energy storage device.However, the security of lithium battery be influence its development it is important
Factor, such as lithium ion battery overcharge, cross put, the abuse condition such as short circuit occurs for lithium battery, extruding when, can cause lithium battery/
Inside modules aerogenesis, catch fire, or even blast.
At present, the conventional method for solving these problems is one relief valve of increase on the top cover of lithium battery/module, works as lithium
There is the above situation in battery, and inside produces gas, explosion-proof on top cover when internal gas pressure reaches the burst pressure of relief valve
Piece ruptures, so that inside lithium ion cell gas is discharged from relief valve, prevents lithium battery because flatulence causes to explode.Because this
Kind solution effect is excessively single, once so pressure release defective valve, however it remains on fire, blast significant consequences.It is most important
, people, which currently still lack, to start with terms of battery cell self structure improvement to avoid the consciousness that fire occurs.
As can be seen here, how to work out lithium ion battery fire-retarding device, possess it is simple in construction, be easy to production and fire resistance
The advantages of good, it is current those skilled in the art's urgent problem to be solved.
The content of the invention
In order to solve the above problems, the utility model provides lithium ion battery fire-retarding device.
The utility model lithium ion battery fire-retarding device, the fire-retarding device have the lithium-ion battery monomer of anti-flaming function
Package casing, the Package casing include liner, endothermic ring, collet and external protection coating successively from the inside to the outside；The liner
Material is polytetrafluoroethylmaterial material, and the endothermic ring is to wind around the helical form copper wire on the outside of the liner, described heat-insulated
Set is in close contact with the copper wire, and the material of the collet is melamine thermosetting foams fire proofing, outside the protection
Side directly contacts with the collet, and the material of the collet is polypropylene flame redardant, the bushing of the liner, endothermic ring, every
The height of hot jacket and external protection coating is equal；The liner include bushing and with the integrally formed flange of the bushing, the flange
Positioned at the upper surface of the endothermic ring, collet and external protection coating, the width of the flange be equal to the bushing, endothermic ring,
The gross thickness of collet and external protection coating, the outward flange of the flange and the external protection coating tip edge are close by laser welding
Envelope connection.
Further, pack the bottom that the external protection coating includes closed side wall and is adhesively fixed with the closed side wall
Layer.
Further, it is adhesively fixed between the bottom wrapper and the protection closed side wall by epoxide-resin glue.
Further, a diameter of 0.3-0.5mm of the copper wire.
Further, the thickness of bushing is 0.4-0.5mm in the liner, and the thickness of the flange is 0.2-0.3mm.
Further, the thickness of the collet is 0.6-0.8mm.
The utility model lithium ion battery fire-retarding device, compared with prior art with advantages below：
In the lithium ion battery fire-retarding device, by setting the liner of polytetrafluoroethylene (PTFE) material to make it have good resistance to height
Warm nature energy, and the structure design of the copper wire is then the good conductor by metallic copper for heat, it is possible to reaching reduces in described
Serve as a contrast temperature purpose, and the collet being prepared by melamine thermosetting foams fire proofing have good thermal insulation,
Heat-resisting quantity, anti-flammability and chemical stability, so the design can significantly reduce battery cell burning probability on fire.Separately
Outside, the biaxial tension polypropylene flame redardant that the external protection coating is waterproof, fire resistance is good, thus can further reduce lithium ion
Other adjacent cell monomers are caused because of situations such as some battery cell overcharges also to burn therewith event on fire in battery pack
Probability of happening.Generally speaking, it possesses that simple in construction, the cost of material is low and the advantages of with processing, and has for the design
Standby excellent fire resistance, can make lithium ion battery possess higher security performance in use.
Brief description of the drawings
Fig. 1 is installation diagram of the present utility model；
Fig. 2 is structural representation of the present utility model.
In figure：1st, liner, 2, endothermic ring, 3, collet, 4, external protection coating, 1.1, flange.
Embodiment
In order to be better understood from the utility model, enter traveling one to the utility model with reference to specific embodiments and the drawings
The description of step.
As shown in Figure 1-2, lithium ion battery fire-retarding device, specially possesses the lithium-ion battery monomer packaging of anti-flaming function
Shell.The Package casing includes liner 1, endothermic ring 2, collet 3 and external protection coating 4 successively from the inside to the outside.
The material of the liner 1 is polytetrafluoroethylmaterial material, to improve the heat-resisting ability of the liner 1.It is in addition, described
Endothermic ring 2 is to wind around the helical form copper wire in the outside of liner 1, and the collet 3 is in close contact with the copper wire.One
Denier temperature is too high, and the copper wire can be minimized the temperature of the polytetrafluoroethyllining lining 1, so as to in polytetrafluoroethylene (PTFE)
Lining 1 plays defencive function.It is framework supporting structure of the present utility model in addition, ion battery monomer can be played good
Protective effect.
In order to lift heat-insulated, fire resistance of the present utility model, so being melamine by the material design of the collet 3
Amine thermosetting foams fire proofing.Meanwhile the protection outside 4 directly contacts with the collet 3, the material of the collet 3
Matter polypropylene flame redardant.
In addition, in order that copper wire, liner 1 and collet 3 in the utility model possess absorbing heat, being resistance to for abundance respectively
Heat, heat-insulating flame-retardant performance, so being 0.3-0.5mm by the diameter design of the copper wire；The thickness of bushing in the liner 1 is set
0.4-0.5mm is calculated as, the thickness of the flange 1.1 is 0.2-0.3mm；The thickness of the collet 3 is designed as 0.6-
0.8mm。
In order that the bushing of the liner 1, endothermic ring 2, collet 3 and external protection coating 4 form a protection entirety, so
The liner 1 is designed as to include bushing and flange integrally formed with the bushing 1.1, the flange 1.1 is located at the suction
The upper surface of hot ring 2, collet 3 and external protection coating 4；And the width of the flange 1.1 be equal to the bushing, endothermic ring 2,
The gross thickness of collet 3 and external protection coating 4, the bushing of the liner 1, endothermic ring 2, the height phase of collet 3 and external protection coating 4
Deng.
In order to lift the bonding strength between the flange 1.1 and the external protection coating 4, so by the flange 1.1
It is designed as connecting by laser welded seal between outward flange and the tip edge of the external protection coating 4.In order that the outer protection
Layer 4 possesses overall protected effect, so the external protection coating 4 is designed as including closed side wall and glued with the closed side wall
Tie fixed bottom wrapper.Wherein, it is gluing by epoxy resin between the bottom wrapper and the protection closed side wall
Knot is fixed.
Embodiment of the present utility model is described in detail above, but the content is only of the present utility model preferable
Embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.All impartial changes made according to the scope of the utility model
Change and improvement etc., all should still be belonged within this patent covering scope.
Claims (6)
1. lithium ion battery fire-retarding device, it is characterised in that：The fire-retarding device includes the lithium ion battery with anti-flaming function
Individual packaging shell, the Package casing include liner successively from the inside to the outside（1）, endothermic ring（2）, collet（3）With outer protection
Layer（4）；
The liner（1）Material be polytetrafluoroethylmaterial material, the endothermic ring（2）To wind around the liner（1）Outside
The helical form copper wire of side, the collet（3）It is in close contact with the copper wire, the collet（3）Material be melamine
Thermosetting foams fire proofing, the external protection coating（4）With the collet（3）Directly contact, the collet（3）Material
For polypropylene flame redardant, the liner（1）Bushing, endothermic ring（2）, collet（3）And external protection coating（4）Height it is equal；
The liner（1）Also include and the integrally formed flange of the bushing（1.1）, the flange（1.1）Positioned at the heat absorption
Ring（2）, collet（3）And external protection coating（4）Upper surface, the flange（1.1）Width be equal to the bushing, endothermic ring
（2）, collet（3）And external protection coating（4）Gross thickness, the flange（1.1）Outward flange and the external protection coating（4）Top
Edge is connected by laser welded seal.
2. lithium ion battery fire-retarding device according to claim 1, it is characterised in that：The external protection coating（4）Including envelope
The bottom wrapper for closing side wall and being adhesively fixed with the closed side wall.
3. lithium ion battery fire-retarding device according to claim 2, it is characterised in that：The bottom wrapper and the envelope
Close between side wall and be adhesively fixed by epoxide-resin glue.
4. lithium ion battery fire-retarding device according to claim 1, it is characterised in that：A diameter of 0.3- of the copper wire
0.5mm。
5. lithium ion battery fire-retarding device according to claim 1, it is characterised in that：The liner（1）The thickness of middle bushing
Spend for 0.4-0.5mm, the flange（1.1）Thickness be 0.2-0.3mm.
6. the lithium ion battery fire-retarding device according to any one in claim 1-5, it is characterised in that：The collet
（3）Thickness be 0.6-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900773.4U CN207021346U (en) | 2017-07-24 | 2017-07-24 | Lithium ion battery fire-retarding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900773.4U CN207021346U (en) | 2017-07-24 | 2017-07-24 | Lithium ion battery fire-retarding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021346U true CN207021346U (en) | 2018-02-16 |
Family
ID=61481844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720900773.4U Active CN207021346U (en) | 2017-07-24 | 2017-07-24 | Lithium ion battery fire-retarding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207021346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792282A (en) * | 2018-08-01 | 2018-11-13 | 邦泰宏图（深圳）科技有限责任公司 | A kind of packaging structure |
-
2017
- 2017-07-24 CN CN201720900773.4U patent/CN207021346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792282A (en) * | 2018-08-01 | 2018-11-13 | 邦泰宏图（深圳）科技有限责任公司 | A kind of packaging structure |
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| GR01 | Patent grant |