CN210668459U - Explosion-proof flame retardant structure of lithium cell - Google Patents
Explosion-proof flame retardant structure of lithium cell Download PDFInfo
- Publication number
- CN210668459U CN210668459U CN201921352422.XU CN201921352422U CN210668459U CN 210668459 U CN210668459 U CN 210668459U CN 201921352422 U CN201921352422 U CN 201921352422U CN 210668459 U CN210668459 U CN 210668459U
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- retardant
- fire
- flame
- explosion
- lithium cell
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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 relates to a fire-retardant explosion-proof technical field of lithium cell discloses an explosion-proof fire-retardant structure of lithium cell, for the explosion-proof flame retardant efficiency who improves the lithium cell, the top of aluminium base plate is provided with the casing, the inboard of fire-retardant board is located middle part position department and fills there is the drier, and both ends all fill around the inboard of fire-retardant board is located the drier has the fire retardant, the inboard top that is located the diaphragm of upper cover of putting out a fire is provided with the water pocket. The utility model discloses an inside aridity of lithium cell can be guaranteed to the inboard drier of fire-retardant board, avoids leading to the lithium cell condition of suddenly deflagrating because of the regain of moisture, and then through the combination of fire retardant and water pocket, when the lithium cell temperature was too high, through melting the diaphragm of PE material, can make the water in the water pocket put out a fire to the lithium cell fast, and when the unexpected deflagration of lithium cell, polyurethane foam's fire retardant can release the foam fast and wrap up the lithium cell and apply and go out.
Description
Technical Field
The utility model relates to a fire-retardant explosion-proof technical field of lithium cell specifically is an explosion-proof flame retardant construction of lithium cell.
Background
Because of many advantages of lithium batteries, lithium batteries are widely applied to electronic instruments, digital products and household electrical appliances, but because the chemical characteristics of lithium metal are very active, the safety of lithium batteries is poor, and the explosion condition is easily caused, so that the lithium batteries are of great importance to the flame-retardant and explosion-proof measures of the lithium batteries.
Through the retrieval, chinese patent net discloses an explosion-proof flame retardant structure of lithium cell (public announcement No. CN 207183439U), through the inside holding chamber that is provided with of shell, be provided with the layer of putting out a fire between holding chamber and the lithium cell package, the layer of putting out a fire includes the low-melting point isolation bag and locates the fluid fire retardant in it, simple structure has, low in production cost, prevent accidents such as lithium cell burning on fire or even explosion, but the fire-retardant explosion-proof structure of this type of device is comparatively single, the drier that can assist drying to the lithium cell does not set up, can't prevent the inside moisture regain of lithium cell, easily arouse lithium cell detonation phenomenon, the structure of putting out a fire that does not set up water pocket and fire retardant and combine together, can't in time put out a fire to. Accordingly, one skilled in the art has provided an explosion-proof and flame-retardant structure of a lithium battery to solve the problems set forth in the above background art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof fire-retardant structure of lithium cell to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof and flame-retardant structure of a lithium battery comprises an aluminum base plate, a shell is arranged above the aluminum base plate, positioning holes are arranged on the upper surface of the aluminum base plate at the edge positions of the two sides in a penetrating manner, clamping grooves are embedded in the top end positions of the front side and the rear side of the shell, the shell is connected with the upper fire-extinguishing cover through the clamping groove, the inner side of the shell is provided with a flame-retardant plate, a battery accommodating cavity is arranged at one side of the inner side of the shell, which is positioned at the flame-retardant plate, a drying agent is filled at the middle position of the inner side of the flame-retardant plate, the fire retardant is filled at the front end and the rear end of the inner side of the fire retardant plate, the air holes are arranged at the two sides of the desiccant at the outer side of the fire retardant plate in a penetrating way, the two ends of the fire extinguishing upper cover are provided with connecting convex wings, and the inner side of the fire extinguishing upper cover is provided with a diaphragm, and a water bag is arranged above the diaphragm on the inner side of the fire extinguishing upper cover.
As a further aspect of the present invention: the internal diameter of draw-in groove and the external diameter looks adaptation that links up the convex wing, the casing passes through the draw-in groove with links up the convex wing block with the upper cover of putting out a fire and fixes.
As a further aspect of the present invention: the length of the drying agent is one third of the length of the flame-retardant plate, the number of the air holes is not less than 10, and the aperture size of the air holes is not less than 2 mm.
As a further aspect of the present invention: the flame retardant is a polyurethane foam material component, and the flame retardant is arranged symmetrically in front and back relative to the drying agent.
As a further aspect of the present invention: the diaphragm is a PE material component, and the diaphragm passes through the fixed adhesion of epoxy glue agent and upper cover of putting out a fire, 8 are no less than to the quantity of water pocket.
As a further aspect of the present invention: the thickness of the aluminum substrate is not less than 3mm, and the upper surface of the aluminum substrate is adhered with a layer of heat-conducting insulating film made of silica gel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can isolate the influence of external water vapor and other factors on the normal working performance of the lithium battery through the airtight clamping of the fire extinguishing upper cover and the shell, ensure the normal working performance of the lithium battery, further ensure the dryness inside the lithium battery through the drying agent on the inner side of the fire retardant plate, avoid the sudden detonation condition of the lithium battery due to moisture regain, further improve the fire retardant performance of the lithium battery, through the combination of the fire retardant and the water bag, when the temperature of the lithium battery is overhigh, the water in the water bag can quickly extinguish the fire of the lithium battery through melting the diaphragm made of PE material, meanwhile, the water in the water bag can dilute the concentration of electrolyte in the lithium battery, further avoid the explosion condition of the lithium battery, when the lithium battery accidentally detonates, the fire retardant made of polyurethane foam can quickly release the foam to wrap and coat the lithium battery, further avoid the detonation condition of the lithium battery, through the good heat-conducting ability of aluminium base plate, can dispel the heat fast to the lithium cell memorability in the work, and then can play the additional action to the normal working property of lithium cell, the further condition that reduces the lithium cell and produce deflagration because of high temperature.
Drawings
FIG. 1 is a schematic structural diagram of an explosion-proof and flame-retardant structure of a lithium battery;
FIG. 2 is a schematic structural view of the inside of a case in an explosion-proof and flame-retardant structure of a lithium battery;
FIG. 3 is an enlarged view of a portion A of the explosion-proof flame-retardant structure of a lithium battery shown in FIG. 2;
fig. 4 is a schematic structural view of a fire extinguishing upper cover in an explosion-proof and flame-retardant structure of a lithium battery.
In the figure: 1. an aluminum base plate; 2. positioning holes; 3. a housing; 4. a fire extinguishing upper cover; 5. a flame retardant sheet; 6. a battery accommodating cavity; 7. a card slot; 8. a desiccant; 9. a flame retardant; 10. air holes are formed; 11. connecting the convex wings; 12. a diaphragm; 13. a water bag.
Detailed Description
Please refer to fig. 1-4, in the embodiment of the present invention, an explosion-proof and flame-retardant structure of lithium battery, including aluminum substrate board 1, aluminum substrate board 1's thickness is not less than 3mm, and aluminum substrate board 1's upper surface is adhesively connected with the heat conduction insulating film of one deck silica gel material, the high temperature that produces in the lithium battery working process is derived through the silica gel heat-conducting plate, and then under the good heat conductivity of aluminum substrate board 1, can dispel the heat fast to the lithium battery memorability in work, and then can play the additional action to the normal working property of lithium battery, further reduction lithium battery produces the condition of deflagration because of the high temperature.
A shell 3 is arranged above the aluminum base plate 1, positioning holes 2 are arranged on the upper surface of the aluminum base plate 1 at the edge positions of two sides in a penetrating way, clamping grooves 7 are embedded in the positions of the top ends of the front side and the back side of the shell 3, the shell 3 is connected with the upper fire-extinguishing cover 4 through a clamping groove 7, the inner side of the shell 3 is provided with a flame-retardant plate 5, a battery accommodating cavity 6 is arranged at one side of the flame retardant plate 5 at the inner side of the shell 3, a drying agent 8 is filled at the middle position of the inner side of the flame retardant plate 5, and the fire retardant 9 is filled in the inner side of the fire retardant plate 5 at the front end and the rear end of the drying agent 8, the fire retardant 9 is a polyurethane foam material component, and the fire retardant 9 is arranged symmetrically in the front and the rear relative to the drying agent 8, when the lithium cell accident detonation, polyurethane foam's fire retardant 9 can release the foam fast and wrap up the lithium cell and apply and go out, and then avoid the condition of lithium cell detonation explosion.
The both sides that the outside of fire-retardant board 5 is located drying agent 8 all run through and are provided with bleeder vent 10, the length of card drying agent 8 is the third of 5 lengths of fire-retardant board, 10 are no less than to the quantity of bleeder vent 10, and the aperture size of bleeder vent 10 is not less than 2mm, drying agent 8 carries out drying action through bleeder vent 10 to the 3 inside lithium batteries of casing, can guarantee the inside aridity of lithium battery, avoid leading to the lithium battery condition of suddenly deflagrating because of the regain, and then improve the fire behaviour of lithium battery.
The both ends of upper cover 4 of putting out a fire all are provided with linking up protruding wing 11, the internal diameter of draw-in groove 7 and the external diameter looks adaptation that links up protruding wing 11, casing 3 is fixed through draw-in groove 7 and linking protruding wing 11 block with upper cover 4 of putting out a fire, airtight block through upper cover 4 of putting out a fire and casing 3, can completely cut off the normal working property that factors such as external steam influence lithium cell, and then guarantee the normal working property of lithium cell, simultaneously through the block of upper cover 4 to casing 3 of putting out a fire, can make things convenient for the staff to explosion-proof fire-retardant structure's equipment, reduce staff's intensity of labour.
The inboard of upper cover 4 of putting out a fire is provided with diaphragm 12, the inboard of upper cover 4 of putting out a fire is located diaphragm 12's top and is provided with water pocket 13, diaphragm 12 is a PE material component, and diaphragm 12 passes through the epoxy glue agent and the fixed adhesion of upper cover 4 of putting out a fire, 8 are no less than to the quantity of water pocket 13, when the inside high temperature of lithium cell, through melting diaphragm 12 with the PE material, can make the water release in the water pocket 13, and then carry out rapid cooling to the lithium cell, the hydroenergy in the water pocket 13 can dilute the concentration of electrolyte in the lithium cell simultaneously, and then avoid the condition of lithium cell explosion.
The utility model discloses a theory of operation is: the lithium battery device is arranged in the battery accommodating cavity 6, the normal working performance of the lithium battery can be isolated from the influence of factors such as external water vapor and the like through the closed clamping of the fire extinguishing upper cover 4 and the shell 3, the normal working performance of the lithium battery can be further ensured, meanwhile, the clamping of the fire extinguishing upper cover 4 to the shell 3 can be convenient for workers to assemble an explosion-proof flame-retardant structure, the labor intensity of the workers is reduced, the drying agent 8 can dry the lithium battery in the shell 3 through the air holes 10, the dryness in the lithium battery can be ensured, the sudden detonation condition of the lithium battery caused by moisture regain can be avoided, the flame-retardant performance of the lithium battery can be further improved, through the combination of the water bag 13 and the flame retardant 9, when the internal temperature of the lithium battery is too high, the diaphragm 12 made of PE material is melted, the water in the water bag 13 can be released, the lithium battery can be rapidly cooled, meanwhile, the water, and then avoid the condition of lithium cell explosion, when the unexpected detonation of lithium cell, polyurethane foam's fire retardant 9 can release the foam fast and wrap up the lithium cell and apply out, and then avoid the condition of lithium cell detonation explosion, the high temperature that the lithium cell produced in the course of the work is derived through the silica gel heat-conducting plate on the aluminium base plate 1, and then under the good heat-conducting capacity of aluminium base plate 1, can dispel the heat fast to the lithium cell memorability in the work, and then can play the additional action to the normal working property of lithium cell, further reduction lithium cell produces the condition of detonation because of the high temperature.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The explosion-proof and flame-retardant structure of the lithium battery comprises an aluminum base plate (1), and is characterized in that a shell (3) is arranged above the aluminum base plate (1), the edge positions of the two sides of the upper surface of the aluminum base plate (1) are respectively provided with a positioning hole (2) in a penetrating manner, the front side and the rear side of the shell (3) are respectively provided with a clamping groove (7) in an embedded manner at the top end position, the shell (3) is connected with an upper fire extinguishing cover (4) through the clamping grooves (7), a flame-retardant plate (5) is arranged on the inner side of the shell (3), a battery accommodating cavity (6) is arranged on one side of the inner side of the shell (3) at an interval of the flame-retardant plate (5), a drying agent (8) is filled on the position of the inner side of the flame-retardant plate (5) at the middle part, a flame retardant (9) is filled on the front end and the rear end of the drying agent (8), and vent holes (10) are The fire extinguishing device is characterized in that the two ends of the fire extinguishing upper cover (4) are respectively provided with a connecting convex wing (11), the inner side of the fire extinguishing upper cover (4) is provided with a diaphragm (12), and a water bag (13) is arranged above the diaphragm (12) on the inner side of the fire extinguishing upper cover (4).
2. The explosion-proof and flame-retardant structure of the lithium battery as claimed in claim 1, wherein the inner diameter of the slot (7) is adapted to the outer diameter of the engaging protruding wing (11), and the housing (3) and the fire-extinguishing upper cover (4) are fixed by the engagement of the slot (7) and the engaging protruding wing (11).
3. The explosion-proof and flame-retardant structure of a lithium battery as claimed in claim 1, wherein the length of the drying agent (8) is one third of the length of the flame-retardant plate (5), the number of the ventilation holes (10) is not less than 10, and the pore size of the ventilation holes (10) is not less than 2 mm.
4. The explosion-proof and flame-retardant structure of a lithium battery as claimed in claim 1, wherein the flame retardant (9) is a polyurethane foam member, and the flame retardant (9) is arranged symmetrically in front and rear with respect to the drying agent (8).
5. The explosion-proof and flame-retardant structure of the lithium battery as claimed in claim 1, wherein the membrane (12) is a PE material member, and the membrane (12) is fixedly bonded to the fire extinguishing upper cover (4) by epoxy resin adhesive, and the number of the water pockets (13) is not less than 8.
6. The explosion-proof and flame-retardant structure of a lithium battery as claimed in claim 1, wherein the thickness of the aluminum substrate (1) is not less than 3mm, and a layer of heat-conducting insulation film made of silica gel is adhered on the upper surface of the aluminum substrate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921352422.XU CN210668459U (en) | 2019-08-20 | 2019-08-20 | Explosion-proof flame retardant structure of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921352422.XU CN210668459U (en) | 2019-08-20 | 2019-08-20 | Explosion-proof flame retardant structure of lithium cell |
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| Publication Number | Publication Date |
|---|---|
| CN210668459U true CN210668459U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921352422.XU Expired - Fee Related CN210668459U (en) | 2019-08-20 | 2019-08-20 | Explosion-proof flame retardant structure of lithium cell |
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| CN (1) | CN210668459U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584791A (en) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery module |
| CN111834575A (en) * | 2020-07-31 | 2020-10-27 | 昆山宝创新能源科技有限公司 | Battery module and flame-retardant heat insulation plate thereof |
| CN112103435A (en) * | 2020-09-23 | 2020-12-18 | 中国电力科学研究院有限公司 | Energy storage battery module flame-retardant structure and method |
| CN112467292A (en) * | 2020-11-09 | 2021-03-09 | 合肥国轩高科动力能源有限公司 | Safety flame-retardant protection device for lithium ion battery |
| CN112670679A (en) * | 2020-12-21 | 2021-04-16 | 湖南久森新能源有限公司 | Flame-retardant and explosion-proof shell for lithium ion battery |
| CN113488729A (en) * | 2020-07-31 | 2021-10-08 | 惠州市合盈科技有限公司 | Lithium battery with flame retardant effect |
| CN114944530A (en) * | 2022-06-30 | 2022-08-26 | 凤凰新能源(惠州)有限公司 | Flame-retardant and explosion-proof polymer lithium ion battery |
| CN114939247A (en) * | 2022-05-13 | 2022-08-26 | 山东宙雨消防科技股份有限公司 | Method for manufacturing automobile fireproof device |
| CN115377572A (en) * | 2022-08-01 | 2022-11-22 | 国核电力规划设计研究院有限公司 | New energy battery box with protective performance |
| US11996580B2 (en) | 2020-10-19 | 2024-05-28 | Jiangsu Contemporary Amperex Technology Limited | Battery, power consumption device, and method and device for producing battery |
| US12036877B2 (en) | 2020-10-19 | 2024-07-16 | Jiangsu Contemporary Amperex Technology Limited | Battery, power consumption device, and method and device for producing battery |
| US12087965B2 (en) | 2020-10-19 | 2024-09-10 | Jiangsu Contemporary Amperex Technology Limited | Battery, electric apparatus, and method and device for preparing battery |
-
2019
- 2019-08-20 CN CN201921352422.XU patent/CN210668459U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584791A (en) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery module |
| CN111834575A (en) * | 2020-07-31 | 2020-10-27 | 昆山宝创新能源科技有限公司 | Battery module and flame-retardant heat insulation plate thereof |
| CN113488729A (en) * | 2020-07-31 | 2021-10-08 | 惠州市合盈科技有限公司 | Lithium battery with flame retardant effect |
| CN112103435A (en) * | 2020-09-23 | 2020-12-18 | 中国电力科学研究院有限公司 | Energy storage battery module flame-retardant structure and method |
| US11996580B2 (en) | 2020-10-19 | 2024-05-28 | Jiangsu Contemporary Amperex Technology Limited | Battery, power consumption device, and method and device for producing battery |
| US12087965B2 (en) | 2020-10-19 | 2024-09-10 | Jiangsu Contemporary Amperex Technology Limited | Battery, electric apparatus, and method and device for preparing battery |
| US12036877B2 (en) | 2020-10-19 | 2024-07-16 | Jiangsu Contemporary Amperex Technology Limited | Battery, power consumption device, and method and device for producing battery |
| CN112467292A (en) * | 2020-11-09 | 2021-03-09 | 合肥国轩高科动力能源有限公司 | Safety flame-retardant protection device for lithium ion battery |
| CN112670679A (en) * | 2020-12-21 | 2021-04-16 | 湖南久森新能源有限公司 | Flame-retardant and explosion-proof shell for lithium ion battery |
| CN114939247A (en) * | 2022-05-13 | 2022-08-26 | 山东宙雨消防科技股份有限公司 | Method for manufacturing automobile fireproof device |
| CN114944530A (en) * | 2022-06-30 | 2022-08-26 | 凤凰新能源(惠州)有限公司 | Flame-retardant and explosion-proof polymer lithium ion battery |
| CN115377572B (en) * | 2022-08-01 | 2024-04-09 | 国核电力规划设计研究院有限公司 | New energy battery box with protective performance |
| CN115377572A (en) * | 2022-08-01 | 2022-11-22 | 国核电力规划设计研究院有限公司 | New energy battery box with protective performance |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20210820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |