CN218351530U - Lithium battery explosion-proof structure - Google Patents
Lithium battery explosion-proof structure Download PDFInfo
- Publication number
- CN218351530U CN218351530U CN202222946926.2U CN202222946926U CN218351530U CN 218351530 U CN218351530 U CN 218351530U CN 202222946926 U CN202222946926 U CN 202222946926U CN 218351530 U CN218351530 U CN 218351530U
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- CN
- China
- Prior art keywords
- explosion
- proof
- lithium battery
- opening
- guide arm
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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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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 61
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000006260 foam Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 description 22
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 150000002641 lithium Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance 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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a lithium battery explosion-proof structure, including explosion-proof housing, the inside of explosion-proof housing is equipped with the lithium cell main part, top in the explosion-proof housing is equipped with explosion-proof mechanism, explosion-proof mechanism includes water tank, foam extinguishing agent case and plenum box, the top of plenum box is equipped with the opening, be equipped with main piston in the opening, the top of main piston is equipped with first guide arm, the cover is equipped with first spring on the first guide arm, and first guide arm crosses the top of explosion-proof housing, water tank and foam extinguishing agent case set up respectively in the both sides of plenum box, and water tank and foam extinguishing agent case all are equipped with the opening near one side of plenum box, be equipped with vice piston in the opening, vice piston is equipped with the connecting rod between the first guide arm; the utility model discloses an overall structure's setting can realize cooling and foam cover to lithium cell main part when lithium cell main part is overheated, prevents that it from exploding with the air contact, and trigger condition is simple, can prevent the explosion of lithium cell.
Description
Technical Field
The utility model relates to a lithium battery technology field specifically is a lithium cell explosion-proof structure.
Background
The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery. Because the chemical properties of lithium metal are very active, the requirements for processing, storage, use and environment of lithium metal are very high.
The lithium cell can produce a large amount of heats in the use for lithium cell surface intensifies, if not in time dispel the heat, can make the inside emergence inflation of lithium cell, and the lithium cell after the inflation can't continue to use, and the lithium cell of inflation can explode if continue to be in under the high temperature situation. Application number is CN 202022493213.6's patent through set up the PVC blanking cover on U type cooling tube, when the inside burning of lithium cell or explosion, PVC melts under the influence of high temperature, and inside water entering lithium cell, restrained the fire, reduced explosion hazard. However, the triggering condition is harsh, and the lithium battery can only be used when the lithium battery is burnt or exploded, and cannot be prevented in advance, so that an explosion-proof structure of the lithium battery, which can prevent the lithium battery from being burnt or exploded in advance, needs to be designed.
SUMMERY OF THE UTILITY MODEL
For solving prior art and having the structure trigger condition who reduces burning or explosion harm and be harsh, the defect of the prevention of unable burning or explosion in advance, the utility model provides a lithium cell explosion-proof structure.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a lithium battery explosion-proof structure, including explosion-proof housing, explosion-proof housing's inside is equipped with lithium cell main part, top in the explosion-proof housing is equipped with explosion-proof mechanism, and explosion-proof mechanism includes water tank, foam extinguishing agent case and plenum box, and the top of plenum box is equipped with the opening, is equipped with main piston in the opening, and the top of main piston is equipped with first guide arm, and the cover is equipped with first spring on the first guide arm, and the top of explosion-proof housing has been alternate to first guide arm, and water tank and foam extinguishing agent case set up respectively in the both sides of plenum box, and one side that water tank and foam extinguishing agent case are close to the plenum box all is equipped with the opening, is equipped with vice piston in the opening, and vice piston is equipped with the connecting rod between first guide arm.
As a preferred technical scheme of the utility model, the bottom laminating lithium battery main part of inflation box sets up, and the bottom of inflation box is equipped with first heat-conducting plate.
As a preferred technical scheme of the utility model, the opening communicates with explosion-proof housing's inside.
As a preferred technical scheme of the utility model, the both sides of lithium cell main part all are equipped with the second heat-conducting plate, and the side of second heat-conducting plate is equipped with a plurality of heat dissipation wings, and the heat dissipation wing alternates the side of explosion-proof housing.
As an optimized technical scheme of the utility model, the both sides of explosion-proof casing all are equipped with the protective cover, and the protective cover covers in the heat dissipation wing outside that corresponds, and is equipped with a plurality of bleeder vents on the protective cover.
As an optimized technical scheme of the utility model, the bottom of explosion-proof housing is equipped with the cavity, is equipped with exhaust mechanism in the cavity.
As a preferred technical scheme of the utility model, exhaust mechanism includes filter, jam and second guide arm, and the filter sets up in the bottom of cavity, intercommunication mouth between the inside of cavity and explosion-proof casing, and the jam sets up in intercommunication mouth department and rather than the cooperation, and the top of second guide arm is connected with the bottom of jam, and the filter has been alternated to the bottom of second guide arm, and the cover is equipped with the second spring on the second guide arm.
The utility model has the advantages as follows:
1. the explosion-proof structure of the lithium battery is characterized in that an explosion-proof mechanism is arranged at the top in an explosion shell, the explosion-proof mechanism comprises a water tank, a foam extinguishing agent box and an inflation box, an opening is formed in the top of the inflation box, a main piston is arranged in the opening, a first guide rod is arranged at the top end of the main piston, a first spring is sleeved on the first guide rod, the first guide rod penetrates through the top of the explosion-proof shell, the water tank and the foam extinguishing agent box are respectively arranged on two sides of the inflation box, openings are formed in one sides, close to the inflation box, of the water tank and the foam extinguishing agent box, an auxiliary piston is arranged in the opening, a connecting rod is arranged between the auxiliary pistons and the first guide rod, when heat generated by a lithium battery main body is too high, gas in the inflation box expands, air pressure pushes the main piston upwards, the main piston moves upwards to drive the auxiliary piston to open, water and the foam extinguishing agent respectively flow into the explosion-proof shell from the water tank and the foam extinguishing agent box, cooling and foam covering are realized on the lithium battery main body, explosion-proof structure is prevented from being contacted with air, triggering conditions are simple, and explosion prevention can be performed on explosion of the lithium battery.
2. This kind of explosion-proof structure of lithium cell all is equipped with the second heat-conducting plate through the both sides at lithium cell main part, and the side of second heat-conducting plate is equipped with a plurality of heat dissipation wings, and the heat dissipation wing alternates the side of explosion-proof housing, can play the radiating effect to lithium cell main part, increases the utility model discloses an explosion-proof effect.
3. This kind of lithium cell explosion-proof structure, through set up exhaust mechanism in the cavity of explosion-proof housing bottom, exhaust mechanism includes the filter, jam and second guide arm, the filter sets up in the bottom of cavity, the intercommunication mouth between the inside of cavity and explosion-proof housing, the jam sets up in intercommunication mouth department and rather than the cooperation, the top and the bottom of jam of second guide arm are connected, and the bottom of second guide arm has alternated the filter, the cover is equipped with the second spring on the second guide arm, when lithium cell main part produces gas, the inside atmospheric pressure of explosion-proof housing increases, the jam is backed down, the second spring is compressed, get into the cavity, and discharge after the filtration of filter plate, prevent that the internal atmospheric pressure of explosion-proof housing is too big, increase the utility model discloses an explosion-proof effect.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of an explosion-proof structure of a lithium battery of the present invention;
fig. 2 is a schematic structural diagram of an explosion-proof mechanism of an explosion-proof structure of a lithium battery of the present invention;
fig. 3 is an enlarged view of a position a in the explosion-proof structure diagram 1 of the lithium battery of the present invention.
In the figure: 1. an explosion-proof housing; 2. a lithium battery main body; 3. an explosion-proof mechanism; 4. a water tank; 5. a foam extinguishing agent box; 6. an air-filled tank; 7. a primary piston; 8. a first guide bar; 9. a first spring; 10. a connecting rod; 11. a secondary piston; 12. an opening; 13. a first heat-conducting plate; 14. a second heat-conducting plate; 15. heat dissipation fins; 16. a protective cover; 17. a cavity; 18. an exhaust mechanism: 19. a filter plate; 20. blocking; 21. a second guide bar; 22. a second spring.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1, the utility model relates to a lithium battery explosion-proof structure, including explosion-proof housing 1, explosion-proof housing 1's inside is equipped with lithium cell main part 2, top in explosion-proof housing 1 is equipped with explosion-proof mechanism 3, as shown in fig. 2, explosion-proof mechanism 3 includes water tank 4, foam extinguishing agent case 5 and gas charging box 6, and the bottom laminating lithium cell main part 2 of gas charging box 6 sets up, and the bottom of gas charging box 6 is equipped with first heat-conducting plate 13, makes things convenient for the heat conduction of lithium cell main part 2 to gas charging box 6. The top of gas tank 6 is equipped with the opening, is equipped with main piston 7 in the opening, and the top of main piston 7 is equipped with first guide arm 8, and the cover is equipped with first spring 9 on the first guide arm 8, and the elasticity of first spring 9 makes main piston 7 stopper tight opening, and the top of explosion-proof housing 1 has been alternate to first guide arm 8, and when the heat that lithium cell main part 2 produced was too high, the gaseous emergence inflation in the gas tank 6, atmospheric pressure upwards promotes main piston 7. Water tank 4 and foam extinguishing agent case 5 set up respectively in the both sides of gas tank 6, and water tank 4 and foam extinguishing agent case 5 all are equipped with opening 12 near one side of gas tank 6, opening 12 and the inside intercommunication of explosion-proof housing 1, be equipped with vice piston 11 in the opening 12, vice piston 11 is equipped with connecting rod 10 between first guide arm 8, main piston 7 moves up and drives vice piston 11 and open, water and foam extinguishing agent flow in explosion-proof housing 1 from water tank 4 and foam extinguishing agent case 5 respectively, realize cooling and foam cover to lithium cell main part 2, prevent it and air contact explosion.
The two sides of the lithium battery main body 2 are both provided with the second heat conducting plates 14, the side surfaces of the second heat conducting plates 14 are provided with a plurality of radiating fins 15, and the radiating fins 15 penetrate through the side surfaces of the explosion-proof shell 1 to achieve a radiating effect on the lithium battery main body 2. Both sides of the explosion-proof shell 1 are provided with protective covers 16, the protective covers 16 cover the outer portions of the corresponding heat dissipation fins, and the protective covers 16 are provided with a plurality of air holes to protect the heat dissipation fins 15.
Wherein, the bottom of explosion-proof housing 1 is equipped with cavity 17, be equipped with exhaust mechanism 18 in the cavity 17, as shown in fig. 3, exhaust mechanism 18 includes filter 19, jam 20 and second guide arm 21, filter 19 sets up in the bottom of cavity 17, intercommunication mouth between the inside of cavity 17 and explosion-proof housing 1, jam 20 sets up in intercommunication mouth department and rather than the cooperation, the top and the bottom of jam 20 of second guide arm 21 are connected, and filter 19 has been worn to cross by the bottom of second guide arm 21, the cover is equipped with second spring 22 on the second guide arm 21, when lithium cell main part 2 produces gas, the inside atmospheric pressure of explosion-proof housing 1 increases, jam 20 is backed down, second spring 22 is compressed, get into cavity 17, and discharge after the filtration of filter plate 19, prevent that the atmospheric pressure is too big in explosion-proof housing 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a lithium battery explosion-proof structure, includes explosion-proof casing (1), the inside of explosion-proof casing (1) is equipped with lithium cell main part (2), a serial communication port, top in explosion-proof casing (1) is equipped with explosion-proof mechanism (3), explosion-proof mechanism (3) include water tank (4), foam extinguishing agent case (5) and plenum box (6), the top of plenum box (6) is equipped with the opening, be equipped with main piston (7) in the opening, the top of main piston (7) is equipped with first guide arm (8), the cover is equipped with first spring (9) on first guide arm (8), and the top of explosion-proof casing (1) has been crossed in first guide arm (8), water tank (4) and foam extinguishing agent case (5) set up respectively in the both sides of plenum box (6), and one side that water tank (4) and foam extinguishing agent case (5) are close to plenum box (6) all is equipped with opening (12), be equipped with vice piston (11) in opening (12), vice piston (11) are equipped with connecting rod (10) between first guide arm (8).
2. The lithium battery explosion-proof structure according to claim 1, characterized in that the bottom end of the gas-filled box (6) is arranged in a manner of being attached to the lithium battery main body (2), and the bottom end of the gas-filled box (6) is provided with a first heat-conducting plate (13).
3. Explosion-proof construction for a lithium battery as claimed in claim 1, characterized in that the opening (12) communicates with the interior of the explosion-proof housing (1).
4. The explosion-proof structure of the lithium battery as recited in claim 1, wherein the lithium battery main body (2) is provided with second heat-conducting plates (14) on both sides thereof, the side surfaces of the second heat-conducting plates (14) are provided with a plurality of heat-dissipating fins (15), and the heat-dissipating fins (15) are inserted through the side surfaces of the explosion-proof housing (1).
5. The explosion-proof structure of lithium battery as claimed in claim 3, wherein the explosion-proof housing (1) is provided with protective covers (16) at both sides thereof, the protective covers (16) cover the exterior of the corresponding heat dissipation fins, and the protective covers (16) are provided with a plurality of ventilation holes.
6. The explosion-proof structure of the lithium battery as recited in claim 1, characterized in that the bottom of the explosion-proof housing (1) is provided with a cavity (17), and the cavity (17) is internally provided with an exhaust mechanism (18).
7. The explosion-proof structure of lithium battery according to claim 6, characterized in that the exhaust mechanism (18) comprises a filter plate (19), a plug (20) and a second guide rod (21), the filter plate (19) is disposed at the bottom of the cavity (17), a communication port is formed between the cavity (17) and the interior of the explosion-proof housing (1), the plug (20) is disposed at the communication port and is matched with the communication port, the top end of the second guide rod (21) is connected with the bottom end of the plug (20), the filter plate (19) is inserted through the bottom end of the second guide rod (21), and a second spring (22) is sleeved on the second guide rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946926.2U CN218351530U (en) | 2022-11-07 | 2022-11-07 | Lithium battery explosion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946926.2U CN218351530U (en) | 2022-11-07 | 2022-11-07 | Lithium battery explosion-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218351530U true CN218351530U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222946926.2U Active CN218351530U (en) | 2022-11-07 | 2022-11-07 | Lithium battery explosion-proof structure |
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| Country | Link |
|---|---|
| CN (1) | CN218351530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115882149A (en) * | 2023-02-22 | 2023-03-31 | 深圳市柯讯科技有限公司 | Battery pack based on fire prevention and explosion prevention |
-
2022
- 2022-11-07 CN CN202222946926.2U patent/CN218351530U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115882149A (en) * | 2023-02-22 | 2023-03-31 | 深圳市柯讯科技有限公司 | Battery pack based on fire prevention and explosion prevention |
| CN115882149B (en) * | 2023-02-22 | 2023-05-23 | 深圳市柯讯科技有限公司 | Fireproof and explosion-proof battery pack |
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