CN212434786U - Explosion-proof flame retardant structure of lithium cell - Google Patents
Explosion-proof flame retardant structure of lithium cell Download PDFInfo
- Publication number
- CN212434786U CN212434786U CN202021467276.8U CN202021467276U CN212434786U CN 212434786 U CN212434786 U CN 212434786U CN 202021467276 U CN202021467276 U CN 202021467276U CN 212434786 U CN212434786 U CN 212434786U
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- CN
- China
- Prior art keywords
- lithium battery
- heat
- explosion
- battery pack
- liquid storage
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 68
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 62
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000017525 heat dissipation Effects 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 9
- 239000011550 stock solution Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses an explosion-proof flame-retardant structure of lithium battery, which relates to the technical field of explosion-proof of lithium battery, comprising a structure main body, wherein the inner wall of the structure main body is provided with a heat-dissipation liquid layer, a spring and a heat-conducting plate are respectively fixed at the inner lower part of the heat-dissipation liquid layer, the top of the spring is connected with a lithium battery pack, the explosion-proof flame-retardant structure of lithium battery is provided with a liquid storage box, a film, a support rod and a protective cover, if the inner lithium battery pack generates heat when in use, the film on a second water pipe under the liquid storage boxes at two sides is influenced, an EVA film with lower melting point is melted by heating, the inner flame-retardant material is discharged from the second water pipe, the two sides of the lithium battery pack are covered, the heat-generating lithium battery pack is blocked to prevent other lithium battery packs from being influenced, gas, the effect of protecting the lithium battery pack during flame retardance is achieved.
Description
Technical Field
The utility model relates to an explosion-proof technical field of lithium cell specifically is an explosion-proof fire-retardant structure of lithium cell.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics of the lithium metal, so that the lithium metal is processed, stored and used. With the development of scientific technology, lithium batteries have become mainstream, and the lithium batteries can be roughly divided into two types: lithium metal batteries are generally rechargeable batteries using manganese dioxide as a positive electrode material and metal lithium or an alloy metal thereof as a negative electrode material, and using a nonaqueous electrolyte solution.
The prior art discloses an explosion-proof fire-retardant structure of lithium cell of application number 201720981443.2, and it includes shell, face guard, and the inside holding chamber that is provided with of shell, a plurality of lithium cell packages are installed to the holding intracavity, lithium cell package and the electrode connection of setting on the face guard, its characterized in that: the holding chamber and the lithium battery pack between be provided with the layer of putting out a fire, the layer of putting out a fire is including low melting point isolation bag and locate its interior fluid matter fire retardant. The utility model has the advantages that: 1. simple structure, low production cost and improved market competitiveness. 2. Utilize built-in fire extinguishing agent cladding lithium cell of low melting point barrier bag, when the burning that generates heat appears in the lithium cell, the barrier bag is melted to high temperature for the effect of cooling and dilution electrolyte can be played to the fire retardant in the barrier bag, prevents accidents such as lithium cell burning on fire or even explosion, promotes the security that the battery used. 3. To the battery of different parameters, the position on layer of can corresponding adjustment putting out a fire, quantity etc, furthest's different places of adaptation are used, but this kind of explosion-proof fire-retardant structure of lithium cell, when the burning is generated heat to inside battery, the median that melts can cover the lithium cell, make the lithium cell that does not burn also receive the cover, the lithium cell that does not heat up has been polluted, cause its unable use, the waste of battery has been increased, the steam that inside high temperature produced also can't be discharged, make the inside expanded phenomenon of swell that produces of structure, influence the environment of placing easily, the battery contacts when placing simultaneously, it is exothermic each other between the lithium cell, make the temperature rise easily, increase the danger of the burning that generates heat.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof fire-retardant structure of lithium cell to propose in solving above-mentioned background art not unburned battery receive pollution easily in fire-retardant time can't use steam not good discharge, the problem of the easy burning of releasing heat each other between the lithium cell.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof fire-retardant structure of lithium cell, includes the main structure body, the inner wall of main structure body is provided with the heat dissipation liquid layer, the inside below in heat dissipation liquid layer is fixed with spring and heat-conducting plate respectively, the top of spring is connected with the lithium cell package, the top of main structure body is connected with the top cap, the through-hole has been seted up at the top of top cap, the inside of top cap is provided with nine stock solution boxes, nine be provided with the passageway between the stock solution box, the internal connection of passageway has the bracing piece, the top of bracing piece is connected with the telescopic link, the top of telescopic link is connected with the visor, seven the bottom of stock solution box is connected with the second water pipe, two the bottom of stock solution box is connected with first water pipe, the bottom of first.
Preferably, the heat-conducting plate is provided with a plurality ofly, and is a plurality of the heat-conducting plate is the equidistance below the inside of heat dissipation liquid layer and arranges the state.
Preferably, the number of the first water pipes is two, and the two first water pipes are distributed in a mirror image mode on a central axis of the structure body.
Preferably, the top cover is detachably arranged with the structural body.
Preferably, the film is made of EVA.
Compared with the prior art, the beneficial effects of the utility model are that: the explosion-proof flame-retardant structure of the lithium battery is provided with a liquid storage box, a film, a support rod and a protective cover, if an internal lithium battery pack generates heat when in use, the film on a second water pipe below the liquid storage boxes on two sides is affected, an EVA film with a lower melting point is melted by heating, the internal flame-retardant material is discharged from the second water pipe, two sides of the lithium battery pack are covered, the heat-generating lithium battery pack is blocked, and other lithium battery packs are prevented from being affected, gas generated by heat contacting the flame-retardant material is emitted inside the lithium battery pack and is emitted through a channel, a telescopic rod is pushed, the protective cover is separated from the liquid storage boxes, the gas is discharged, the effect of protecting the lithium battery pack when in flame retardance is achieved, the problem that the heat generated by other batteries is affected by the heat generated by the batteries and burning is solved, meanwhile, the heat conducts to the heat dissipation liquid layer through the spring, and the inside radiating liquid of heat dissipation liquid layer makes the heat give off, and the heat-conducting plate prevents the direct heat gathering of lithium cell package, with heat conduction to heat dissipation liquid layer, has reached the effect that prevents the heat intensification, has solved the lithium cell package heat conduction that generates heat and has made another one lithium cell package heat rising's problem.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the structure A of the present invention;
fig. 4 is a schematic view of the top view structure of the present invention.
In the figure: 1. a structural body; 2. a top cover; 3. a lithium battery pack; 4. a spring; 5. a heat dissipation liquid layer; 6. a heat conducting plate; 7. a first water pipe; 8. a second water pipe; 9. a film; 10. a liquid storage box; 11. a channel; 12. a through hole; 13. a support bar; 14. a telescopic rod; 15. a protective cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, can be connected inside two elements or can be in an interaction relationship between the two elements, and the specific meaning of the terms in the present invention can be understood according to specific situations by those skilled in the art
Referring to fig. 1-4, the present invention provides a technical solution: an explosion-proof and flame-retardant structure of a lithium battery comprises a structure main body 1, a top cover 2, a lithium battery pack 3, a spring 4, a heat-dissipation liquid layer 5, a heat-conducting plate 6, a first water pipe 7, a second water pipe 8, a film 9, liquid storage boxes 10, a channel 11, a through hole 12, a supporting rod 13, a telescopic rod 14 and a protective cover 15, wherein the heat-dissipation liquid layer 5 is arranged on the inner wall of the structure main body 1, the spring 4 and the heat-conducting plate 6 are respectively fixed on the lower portion inside the heat-dissipation liquid layer 5, the top of the spring 4 is connected with the lithium battery pack 3, the top of the structure main body 1 is connected with the top cover 2, the through hole 12 is formed in the top of the top cover 2, nine liquid storage boxes 10 are arranged inside the top cover 2, the channel 11 is arranged among the nine liquid storage boxes 10, the supporting rod 13 is connected inside the channel 11, the bottom of two stock solution boxes 10 is connected with first water pipe 7, and the bottom of first water pipe 7 and second water pipe 8 all is connected with film 9.
Referring to fig. 1 to 3, a plurality of heat-conducting plates 6 are arranged, the heat-conducting plates 6 are arranged at equal intervals below the inside of the heat-dissipating liquid layer 5, so as to prevent the temperature rise caused by heat generation between the lithium battery packs, and the two first water pipes 7 are distributed in a mirror image manner on the central axis of the structural main body 1, so that the flame-retardant liquid in the liquid storage box can rapidly enter the bottom of the lithium battery pack.
Referring to fig. 1-4, the top cover 2 is detached from the main structure 1 to facilitate replacement of the lithium battery pack, and the thin film 9 is made of EVA, and has a low melting point to melt rapidly when heated.
The working principle is as follows: firstly, checking whether a structure main body 1 is intact, opening a top cover 2, installing a lithium battery pack 2 into the structure main body 1, when the lithium battery pack is installed through a spring 4, the lithium battery pack does not contact the inside of the structure main body when generating heat, preventing heat from being accumulated, the heat is conducted to a heat dissipation liquid layer 5 through the spring 4, the heat dissipation liquid in the heat dissipation liquid layer 5 enables the heat to be dissipated, a heat conduction plate prevents the lithium battery pack 2 from directly accumulating the heat, and conducts the heat to the heat dissipation liquid layer 5, if the internal lithium battery pack 2 generates heat during use, a film 9 on a second water pipe 8 under liquid storage boxes 10 at two sides is affected, an EVA film 9 with a lower melting point is heated and melted, internal flame-retardant materials are discharged from the second water pipe 8, covering two sides of the lithium battery pack 2, enabling the heated lithium battery pack 2 to be blocked, enabling the flame-retardant liquid in the liquid storage boxes 10 to rapidly enter the, the gas generated by the heat contacting the flame-retardant material is gathered inside and dissipated through the channel 11, and the telescopic rod 14 is pushed to separate the protective cover 15 from the liquid storage box 10.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an explosion-proof fire-retardant structure of lithium cell, includes main structure body (1), its characterized in that: the inner wall of the structure body (1) is provided with a heat-dissipation liquid layer (5), a spring (4) and a heat-conducting plate (6) are respectively fixed below the inner part of the heat-dissipation liquid layer (5), the top of the spring (4) is connected with a lithium battery pack (3), the top of the structure body (1) is connected with a top cover (2), a through hole (12) is formed in the top of the top cover (2), nine liquid storage boxes (10) are arranged in the top cover (2), a channel (11) is arranged between the nine liquid storage boxes (10), a support rod (13) is connected in the channel (11), a telescopic rod (14) is connected to the top of the support rod (13), a protective cover (15) is connected to the top of the telescopic rod (14), the bottom of seven liquid storage boxes (10) is connected with a second water pipe (8), and the bottom of the two liquid storage boxes (10) is connected with, the bottom ends of the first water pipe (7) and the second water pipe (8) are connected with a film (9).
2. The explosion-proof flame retardant structure of lithium battery as claimed in claim 1, characterized in that: the heat-conducting plate (6) is provided with a plurality of, a plurality of heat-conducting plate (6) are the equidistance below the inside of heat dissipation liquid layer (5) and arrange the state.
3. The explosion-proof flame retardant structure of lithium battery as claimed in claim 1, characterized in that: the two first water pipes (7) are arranged, and the two first water pipes (7) are distributed on the central axis of the structure body (1) in a mirror image mode.
4. The explosion-proof flame retardant structure of lithium battery as claimed in claim 1, characterized in that: the top cover (2) and the structure body (1) are arranged in a detachable mode.
5. The explosion-proof flame retardant structure of lithium battery as claimed in claim 1, characterized in that: the film (9) is made of EVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021467276.8U CN212434786U (en) | 2020-07-23 | 2020-07-23 | Explosion-proof flame retardant structure of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021467276.8U CN212434786U (en) | 2020-07-23 | 2020-07-23 | Explosion-proof flame retardant structure of lithium cell |
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| Publication Number | Publication Date |
|---|---|
| CN212434786U true CN212434786U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021467276.8U Expired - Fee Related CN212434786U (en) | 2020-07-23 | 2020-07-23 | Explosion-proof flame retardant structure of lithium cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156568A (en) * | 2022-02-07 | 2022-03-08 | 华北电力大学 | A kind of energy storage container battery cabinet control method and energy storage container |
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2020
- 2020-07-23 CN CN202021467276.8U patent/CN212434786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156568A (en) * | 2022-02-07 | 2022-03-08 | 华北电力大学 | A kind of energy storage container battery cabinet control method and energy storage container |
| CN114156568B (en) * | 2022-02-07 | 2022-04-12 | 华北电力大学 | A kind of energy storage container battery cabinet control method and energy storage container |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 Termination date: 20210723 |