CN114050351B - Lithium battery with high sealing flame retardance - Google Patents
Lithium battery with high sealing flame retardance Download PDFInfo
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- CN114050351B CN114050351B CN202111436265.2A CN202111436265A CN114050351B CN 114050351 B CN114050351 B CN 114050351B CN 202111436265 A CN202111436265 A CN 202111436265A CN 114050351 B CN114050351 B CN 114050351B
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- air
- heat dissipation
- pipe
- lithium battery
- battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 title abstract description 7
- 238000009423 ventilation Methods 0.000 claims abstract description 32
- 230000017525 heat dissipation Effects 0.000 claims abstract description 29
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 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 compound 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 claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lithium battery with high sealing flame retardance, which belongs to the field of lithium battery application and comprises a lithium battery pack and a battery box, wherein the lithium battery pack is arranged in the battery box; compared with the prior art, the invention has the advantages that: when the battery is overheated, the temperature sensing air bag expands, and the heat radiation fan is started to radiate heat of the lithium battery so as to prevent overheat explosion of the lithium battery; when the battery is at normal temperature, the heat dissipation ventilation pipe is disconnected, the air outlet is closed, the heat dissipation pipe is protected, dust accumulation is prevented, and the service life is prolonged; when the battery is damaged, internal electrolyte leaks, and internal combustion occurs, the electrolyte burns through the heat dissipation partition plate, at the moment, the flame retardant buried in the heat dissipation partition plate leaks, and diffuses in the battery box, so that the internal temperature is reduced, and the flame retardant effect is achieved.
Description
Technical Field
The invention belongs to the technical field of application of lithium batteries, and particularly relates to a lithium battery with high sealing flame retardance.
Background
In the application process of the lithium battery, the ignition combustion of the lithium battery is always the key problem to be solved, but the ignition combustion of the existing lithium battery is mainly caused by overcharging of the battery, too long charging time, no power-off after charging, the charger is always connected with the battery in a charged manner, the battery is excessively used, a long-time heavy load is applied, the battery is excessively discharged, the battery can generate heat, and the danger that the explosion is caused by overheating is solved, namely, the lithium battery with high sealing flame retardance is needed.
Disclosure of Invention
The invention aims to provide a lithium battery with high sealing flame retardance so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a lithium cell that sealed fire resistance is high, includes lithium cell group, battery box, lithium cell group installs in the battery box, the battery box inner wall is equipped with the heat dissipation baffle, battery box top fixedly connected with roof, be equipped with the second spout in the roof, be equipped with the temperature sensing gasbag in the second spout, sliding connection has the piston board in the second spout, fixedly connected with slider on the piston board, fixedly connected with second ventilation pipe on the slider, be equipped with the radiator fan in the roof, fixedly connected with first ventilation pipe on the radiator fan, first ventilation pipe, second ventilation pipe mutually support, first ventilation pipe, second ventilation pipe both sides all are equipped with the elasticity billet, two the both ends of elasticity billet are fixedly connected with respectively on roof, slider, every the elasticity intermediate section is all crooked to both sides, the both ends of slider are equipped with two air-out connectors respectively, the second ventilation pipe communicates with the air-out connector, the air-out connector communicates through the hose has the air intake, be equipped with the radiator pipe in the baffle, communicate with the radiator fan.
Preferably, a first chute is arranged in the top plate, an air outlet limiting block is connected in the first chute in a sliding manner, a spring is arranged in the first chute, two ends of the spring are respectively and fixedly connected to the inner wall of the first chute and the air outlet limiting block, an air outlet hole is formed in the air outlet limiting block, an air outlet pipe is arranged on the inner wall of the first chute, the air outlet hole is matched with the air outlet pipe in the direction, and the air outlet pipe is communicated with the radiating pipe.
Preferably, the solid flame retardant is buried in the heat dissipation partition plate.
Preferably, a contact is arranged at the bottom end of the first ventilation pipe, and the contact is electrically connected with the heat dissipation fan.
The invention has the technical effects and advantages that:
1. when the battery is overheated, the temperature sensing air bag expands, and the heat radiation fan is started to radiate heat of the lithium battery so as to prevent overheat explosion of the lithium battery;
2. when the battery is at normal temperature, the heat dissipation ventilation pipe is disconnected, the air outlet is closed, the heat dissipation pipe is protected, dust accumulation is prevented, and the service life is prolonged;
3. when the battery is damaged, internal electrolyte leaks, and internal combustion occurs, the electrolyte burns through the heat dissipation partition plate, at the moment, the flame retardant buried in the heat dissipation partition plate leaks, and diffuses in the battery box, so that the internal temperature is reduced, and the flame retardant effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a top plate structure according to the present invention;
FIG. 3 is a schematic diagram of the working state structure of the heat dissipation fan of the present invention;
fig. 4 is a schematic view of a heat dissipation separator according to the present invention.
In the figure: 101. a lithium battery pack; 102. a top plate; 103. a heat-dissipating partition; 104. a battery box; 105. a heat radiating pipe; 106. a heat radiation fan; 107. a first ventilation pipe; 108, a step of; an elastic steel bar; 109. an air outlet limiting block; 201. an air outlet hole; 202. a first chute; 203. a spring; 204. a second ventilation pipe; 205. an air inlet; 206. a ventilation hose; 207 (x, y); an air outlet connector; 208. a slide block; 209. a piston plate; 301. a temperature sensing air bag; 302. a second chute; 303. solid flame retardants.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a lithium battery with high sealing flame retardance, which is shown in figures 1-4, and comprises a lithium battery pack 101 and a battery box 104, wherein the lithium battery pack 101 is arranged in the battery box 104;
specifically, the inner wall of the battery box 104 is provided with a heat dissipation baffle 103, the top end of the battery box 104 is fixedly connected with a top plate 102, a second chute 302 is arranged in the top plate 102, a temperature sensing air bag 301 is arranged in the second chute 302, a piston plate 209 is connected in a sliding manner in the second chute 302, a sliding block 208 is fixedly connected to the piston plate 209, a second ventilation pipe 204 is fixedly connected to the sliding block 208, a heat dissipation fan 106 is arranged in the top plate 102, a first ventilation pipe 107 is fixedly connected to the heat dissipation fan 106, the first ventilation pipe 107 and the second ventilation pipe 204 are mutually matched, two ends of the elastic steel bars 108 are respectively and fixedly connected to the top plate 102 and the sliding block 208, the middle section of each elastic steel bar 108 is bent towards two sides, two ends of the sliding block 208 are respectively provided with two air outlet connectors 207, the second ventilation pipe 204 is communicated with the air outlet connectors 207, the air outlet connectors 207 are communicated with an air inlet 205 through hoses 206, heat dissipation pipes 105 are arranged in the baffle 103, and the heat dissipation pipes 105 are communicated with the heat dissipation pipes 105.
Specifically, a first chute 202 is provided in the top plate 102, an air outlet limiting block 109 is slidably connected in the first chute 202, a spring 203 is provided in the first chute 202, two ends of the spring 203 are respectively and fixedly connected to the inner wall of the first chute 202 and the air outlet limiting block 109, an air outlet hole 201 is provided in the air outlet limiting block 109, an air outlet pipe is provided in the inner wall of the first chute 202, the air outlet hole 201 is matched with the air outlet pipe, and the air outlet pipe is communicated with the radiating pipe 105.
Specifically, the solid flame retardant 303 is embedded in the heat dissipation separator 103.
Specifically, a contact is disposed at the bottom end of the first ventilation pipe 107, and the contact is electrically connected to the heat dissipation fan 106.
Working principle:
the lithium battery pack 101 is placed in the battery box 104, the heat dissipation baffle 103 is installed to the battery box 104 lateral wall, the roof 102 is located lithium battery pack 101 top, be equipped with the temperature sensing gasbag in the roof 102, when the battery is overheated, the temperature sensing gasbag inflation, promote slider 208 and move up, slider 208's top fixedly connected with has two elastic steel bars 108, elastic steel bar 108 is the elastic steel sheet, the middle part outwards bends, along with slider 208 upwards move, elastic steel bar 108 outwards end is crooked gradually, when the gasbag is fully expanded, elastic steel bar 108 bending degree is the biggest, at this moment, the second ventilation pipe 204 and the elastic steel bar 108 butt joint of being fixed in slider 208 upper end, simultaneously, elastic steel bar 108 bending end promotes air-out stopper 109, make the air-out hole 201 on the air-out stopper 109 and air-out pipe orientation match, at this moment, the contact control cooling fan 106 that sets up on the elastic steel bar 108 opens, at this moment, cooling fan 106 air supply, the cooling wind follows first ventilation pipe 107, the second ventilation pipe 204, ventilation hose 206 gets into in the cooling tube 105, carry out the heat dissipation to lithium battery pack 101 through the cooling with the heat, when the temperature is less than the upper limit, the air-out stopper is reset, the air-out stopper 204 is reset under the effect under the spring 203, simultaneously reset stopper 109, the second ventilation pipe is covered by the air-out stopper 109, simultaneously, the long-life device is prevented from being blocked by the second ventilation pipe 107, simultaneously, the long-life device is used to prevent the dust accumulation device.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (3)
1. The utility model provides a lithium cell that sealed fire resistance is high, includes lithium cell group (101), battery box (104), lithium cell group (101) install in battery box (104), its characterized in that: the battery box (104) inner wall is equipped with heat dissipation baffle (103), battery box (104) top fixedly connected with roof (102), be equipped with second spout (302) in roof (102), be equipped with temperature sensing gasbag (301) in second spout (302), sliding connection has piston board (209) in second spout (302), fixedly connected with slider (208) on piston board (209), fixedly connected with second ventilation pipe (204) on slider (208), be equipped with radiator fan (106) in roof (102), fixedly connected with first ventilation pipe (107) on radiator fan (106), first ventilation pipe (107), second ventilation pipe (204) mutually support, first ventilation pipe (107), second ventilation pipe (204) both sides all are equipped with elastic steel strip (108), two both ends of elastic steel strip (108) are fixed connection respectively on roof (102), slider (208), every elastic steel strip (108) intermediate section all is crooked to both sides, both ends of slider (208) are equipped with two air-out connectors (205) respectively, air-out connectors (207) are communicated with air inlet (207) through air inlet (206), the heat dissipation partition plate (103) is internally provided with a heat dissipation pipe (105), the air inlet (205) is communicated with the heat dissipation pipe (105), the bottom end of the first ventilation pipe (107) is provided with a contact, and the contact is electrically connected with the heat dissipation fan (106).
2. The high-sealing-flame-retardant lithium battery according to claim 1, wherein: be equipped with first spout (202) in roof (102), sliding connection has air-out stopper (109) in first spout (202), be equipped with spring (203) in first spout (202), the both ends of spring (203) are fixed connection respectively on first spout (202) inner wall and air-out stopper (109), be equipped with air-out hole (201) on air-out stopper (109), first spout (202) inner wall is equipped with the air-out pipe, air-out hole (201) and air-out pipe are to matcing, the air-out pipe communicates with each other with cooling tube (105).
3. The high-sealing-flame-retardant lithium battery according to claim 1, wherein: a solid flame retardant (303) is embedded in the heat dissipation partition plate (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436265.2A CN114050351B (en) | 2021-11-29 | 2021-11-29 | Lithium battery with high sealing flame retardance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436265.2A CN114050351B (en) | 2021-11-29 | 2021-11-29 | Lithium battery with high sealing flame retardance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114050351A CN114050351A (en) | 2022-02-15 |
| CN114050351B true CN114050351B (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111436265.2A Active CN114050351B (en) | 2021-11-29 | 2021-11-29 | Lithium battery with high sealing flame retardance |
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| Country | Link |
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| CN (1) | CN114050351B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367072A (en) * | 2022-02-22 | 2022-04-19 | 遂宁市消防救援支队 | Lithium battery box fire prevention and control device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013200730A1 (en) * | 2013-01-18 | 2014-07-24 | Robert Bosch Gmbh | Device for providing safety measures during gas release from damaged lithium-ion accumulator for e.g. hybrid vehicle, has gas generators filling cladding elements with gas during reception of trigger signal, and battery arranged in chamber |
| CN107528016A (en) * | 2016-06-20 | 2017-12-29 | 北汽福田汽车股份有限公司 | Battery case and there is its vehicle |
| CN207199790U (en) * | 2017-07-12 | 2018-04-06 | 浙江谷神能源科技股份有限公司 | A kind of lithium battery fire-retarding device |
| CN109037838A (en) * | 2018-07-26 | 2018-12-18 | 重庆工程职业技术学院 | Car lithium battery management system |
| CN110707252A (en) * | 2019-09-16 | 2020-01-17 | 合肥鸿叶紫新能源有限公司 | Heat dissipation device for new energy battery |
| CN212571200U (en) * | 2020-07-06 | 2021-02-19 | 徐州麦通环保科技有限公司 | Lithium battery with self-heat-dissipation structure |
| CN213340484U (en) * | 2020-11-19 | 2021-06-01 | 蓝幸浩 | New energy automobile battery compartment firebreak device |
-
2021
- 2021-11-29 CN CN202111436265.2A patent/CN114050351B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013200730A1 (en) * | 2013-01-18 | 2014-07-24 | Robert Bosch Gmbh | Device for providing safety measures during gas release from damaged lithium-ion accumulator for e.g. hybrid vehicle, has gas generators filling cladding elements with gas during reception of trigger signal, and battery arranged in chamber |
| CN107528016A (en) * | 2016-06-20 | 2017-12-29 | 北汽福田汽车股份有限公司 | Battery case and there is its vehicle |
| CN207199790U (en) * | 2017-07-12 | 2018-04-06 | 浙江谷神能源科技股份有限公司 | A kind of lithium battery fire-retarding device |
| CN109037838A (en) * | 2018-07-26 | 2018-12-18 | 重庆工程职业技术学院 | Car lithium battery management system |
| CN110707252A (en) * | 2019-09-16 | 2020-01-17 | 合肥鸿叶紫新能源有限公司 | Heat dissipation device for new energy battery |
| CN212571200U (en) * | 2020-07-06 | 2021-02-19 | 徐州麦通环保科技有限公司 | Lithium battery with self-heat-dissipation structure |
| CN213340484U (en) * | 2020-11-19 | 2021-06-01 | 蓝幸浩 | New energy automobile battery compartment firebreak device |
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| Publication number | Publication date |
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| CN114050351A (en) | 2022-02-15 |
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