CN215451660U - Protection device for battery explosion and ignition - Google Patents
Protection device for battery explosion and ignition Download PDFInfo
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- CN215451660U CN215451660U CN202121778022.2U CN202121778022U CN215451660U CN 215451660 U CN215451660 U CN 215451660U CN 202121778022 U CN202121778022 U CN 202121778022U CN 215451660 U CN215451660 U CN 215451660U
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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 the technical field of new energy, in particular to a protection device for explosion and fire of a battery, which comprises an inner frame body, a middle frame body and an outer frame body, wherein the inner frame body, the middle frame body and the outer frame body are sequentially sleeved outside the battery from inside to outside, non-Newtonian fluid is filled between the inner frame body and the middle frame body, and fire extinguishing filling materials are filled between the middle frame body and the outer frame body. The inner frame body can be filled with batteries or electric cores of various specifications, the universality is strong, and the non-Newtonian fluid is filled between the inner frame body and the middle frame body, has the characteristics of low cost and easy acquisition, can instantly resist the impact of huge kinetic energy generated by explosion, and is used as liquid, wherein water can also be used as a fire retardant to be poured on the exploded electric core; in addition, fire extinguishing filling materials are filled between the middle frame body and the outer frame body, and the fire extinguishing filling materials can play a role in flame retardance.
Description
Technical Field
The utility model relates to the technical field of new energy, in particular to a protection device for battery explosion and ignition.
Background
The traditional lithium ion battery has great potential safety hazard, and no matter the battery has defects (lithium is separated out to generate lithium dendrite to pierce a diaphragm and the like) or is used by a user in an irregular way (overcharging, overdischarging and the like) or is subjected to accidents (needling and the like) in the using process, the phenomena of smoking, firing, explosion and the like can occur under the conditions, and the phenomenon is a ring that the lithium ion battery is difficult to bypass. However, the defects of the battery can be avoided, the battery caused by non-standard use can also be prevented from firing and exploding, and the influence of accidents such as acupuncture on the battery is always a problem.
The existing blade battery uses lithium iron phosphate as a main positive electrode material, and compared with a ternary battery, the lithium iron phosphate battery has the advantages that the temperature rise rate is slow when short circuit occurs in acupuncture, the decomposition temperature of the material is high, oxygen generated by decomposition of the positive electrode material is less, the internal pressure and heat generation are low, and the safety performance is good; structurally, the blade battery has long electrode plates, thin thickness and narrow width, the number of electrode plates penetrated by steel needles during needling is small, and the heat productivity of triggered internal short circuit is small. However, the whole structure of the battery cell must be improved to effectively deal with the problem of needle punching, but the improvement of the whole structure of the battery cell not only has the problem of high manufacturing cost, but also has the problem of high product unicity.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a protection device for battery explosion and fire, which has a simple structure and overcomes the defects in the prior art.
The purpose of the utility model is realized by the following technical scheme: the application provides a protection device that battery explosion was fired on fire, including from inside to outside in proper order the cover at outside inner frame body, middle frame body and the outer frame body of battery, it has non-Newtonian fluid to fill between inner frame body and the middle frame body, and it has the filling material of putting out a fire to fill between middle frame body and the outer frame body.
Wherein, the inner frame body, the middle frame body and the outer frame body are all rectangular structures.
Wherein, interior framework, well framework and outer framework are from inside to outside concentric arrangement.
Wherein, the inner frame body is made of ABS material or/and PC material structure.
Wherein, the middle frame body is a polypropylene film.
Wherein, the outer frame body is made of ABS material or/and PC material structure.
The number of the batteries inside the inner frame body is single or multiple.
Wherein the non-Newtonian fluid is one or the combination of more than two of water starch, sugar water, plastic solution and chemical fiber melt.
Wherein, the fire extinguishing filling material is one or the combination of dry powder or sodium bicarbonate.
The utility model has the beneficial effects that: according to the protection device for battery explosion and ignition, batteries or electric cores of various specifications can be placed in the inner frame body, the universality is strong, non-Newtonian fluid is filled between the inner frame body and the middle frame body, the non-Newtonian fluid has the characteristics of low cost and easiness in obtaining, the impact of huge kinetic energy generated by explosion can be resisted instantly, and then the non-Newtonian fluid is used as liquid, wherein water can also be used as a fire retardant to be poured on the exploded electric core; in addition, fire extinguishing filling materials are filled between the middle frame body and the outer frame body, and the fire extinguishing filling materials can play a role in flame retardance.
Drawings
The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a protection device for battery explosion and fire in this embodiment.
Description of the drawings: the fire extinguishing device comprises an inner frame body 1, a middle frame body 2, an outer frame body 3, non-Newtonian fluid 4 and fire extinguishing filling materials 5.
Detailed Description
The utility model is further described with reference to the following examples.
In the embodiment of the protection device for battery explosion and fire, as shown in fig. 1, the protection device comprises an inner frame body 1, a middle frame body 2 and an outer frame body 3 which are sleeved outside a battery from inside to outside in sequence. In order to be suitable for batteries or battery cores of various specifications and to place a single battery or a plurality of batteries or battery cores, the inner frame body 1, the middle frame body 2 and the outer frame body 3 are all rectangular structures, the rectangular structures are more convenient for installation and storage of the protection device, and the working stability of the protection device is improved.
In the improvement, a non-Newtonian fluid 4 is filled between the inner frame 1 and the middle frame 2, and a fire extinguishing filler 5 is filled between the middle frame 2 and the outer frame 3. In order to further enhance the stability of the protection device, the inner frame body 1, the middle frame body 2 and the outer frame body 3 are concentrically arranged from inside to outside, so that the non-Newtonian fluid 4 and the fire extinguishing filling material 5 are more uniformly distributed, and the problem of non-uniform thickness of the flame retardant layer is avoided.
It should be noted that structures such as supporting pieces, reinforcing ribs or connecting pieces can be arranged between the middle frame body 2 and the outer frame body 3 and between the middle frame body 2 and the inner frame body 1, so that an overhead structure is formed between two adjacent frame bodies, and the arrangement can be specifically selected according to actual requirements.
In this embodiment, the inner frame 1 is made of ABS material or/and PC material, and the outer frame 3 is made of ABS material or/and PC material. Specifically, if the inner frame body 1 or the outer frame body 3 is prepared by simply adopting ABS material, the structure has good toughness and low cost, but the structural strength is low; if the inner frame body 1 or the outer frame body 3 is prepared by simply adopting a PC material, the structure has high strength, but has high cost and poor toughness; if the inner frame body 1 or the outer frame body 3 is prepared from the composite material of the PC material and the ABS material, the advantages and the disadvantages of the two materials can be neutralized, and the composite material has the advantages of moderate price, moderate strength, moderate toughness and strong manufacturability. It should be noted that, both ABS material, PC material and composite material are commercially available materials, and the specific structure and composition thereof can be easily known to those skilled in the art, and the present embodiment does not modify these materials.
The viscosity of the non-newtonian fluid 4 does not change with the change of the shearing force, and the absorption efficiency is relatively slow, but the non-newtonian fluid can particularly absorb the kinetic energy. This is shown in the fact that the non-newtonian fluid 4, when it is instantaneously impacted by a very large kinetic energy (such as that generated by a battery explosion), becomes approximately solid-like in stiffness at the instant. In the present embodiment, the non-newtonian fluid 4 may be one or a combination of two or more of starch liquid (water starch), sugar water, various engineering plastics, plastic solution, melt of chemical fiber, or other solutions in food industry, or a liquid obtained by other methods, which may be defined as the non-newtonian fluid 4.
In the present embodiment, the fire extinguishing filling material 5 is one or a combination of dry powder or sodium bicarbonate. The fire extinguishing filler material 5 may be other powder capable of fire retarding.
In this embodiment, the middle frame 2 is a polypropylene film. In normal use, the polypropylene film can play sealed effect as the sealing layer, and the polypropylene film can also decompose by oneself, and when the temperature promoted 100 ℃ when 10 ℃, the polypropylene film can decompose by oneself, releases the filler of putting out a fire of filling in the cavity, reaches the effect of putting out a fire.
The protection device that battery explosion was fired of this embodiment, when the battery took place the incident, for example the battery was fired or the battery explodes, protection device can minimize the destruction that causes, and the device processing is simple and easy, and the material is simple, need not too high cost. A single or a plurality of battery cells can be placed in the inner frame body 1, the requirement on the structural types of the battery cells is low, and the battery cells can be universally used on various types of battery cells. In addition, the non-Newtonian fluid 4 is filled between the inner frame body 1 and the middle frame body 2, the non-Newtonian fluid 4 has the characteristics of low cost and easy acquisition, can resist the impact of huge kinetic energy generated by explosion instantly, and can be used as liquid, wherein moisture can also be used as a flame retardant to pour on an exploded battery cell. And fire extinguishing filling materials 5 are filled between the middle frame body 2 and the outer frame body 3, so that the fire-retardant effect can be achieved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A protection device for battery explosion and fire is characterized in that: the fire extinguishing filler comprises an inner frame body, a middle frame body and an outer frame body which are sequentially sleeved outside a battery from inside to outside, wherein non-Newtonian fluid is filled between the inner frame body and the middle frame body, and fire extinguishing filler material is filled between the middle frame body and the outer frame body.
2. The protection device against battery explosion fire according to claim 1, wherein: the inner frame body, the middle frame body and the outer frame body are all rectangular structures.
3. The protection device against battery explosion fire according to claim 1, wherein: the inner frame body, the middle frame body and the outer frame body are concentrically arranged from inside to outside.
4. The protection device against battery explosion fire according to claim 1, wherein: the inner frame body is made of ABS materials or/and PC materials.
5. The protection device against battery explosion fire according to claim 1, wherein: the middle frame body is a polypropylene film.
6. The protection device against battery explosion fire according to claim 1, wherein: the outer frame body is made of ABS materials or/and PC materials.
7. The protection device against battery explosion fire according to claim 1, wherein: the number of the batteries in the inner frame body is single or multiple.
8. The protection device against battery explosion fire according to claim 1, wherein: the non-Newtonian fluid is one of water starch, sugar water, plastic solution and chemical fiber melt or the combination of more than two of the materials.
9. The protection device against battery explosion fire according to claim 1, wherein: the fire extinguishing filling material is one or the combination of dry powder or sodium bicarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121778022.2U CN215451660U (en) | 2021-07-30 | 2021-07-30 | Protection device for battery explosion and ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121778022.2U CN215451660U (en) | 2021-07-30 | 2021-07-30 | Protection device for battery explosion and ignition |
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| Publication Number | Publication Date |
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| CN215451660U true CN215451660U (en) | 2022-01-07 |
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| CN202121778022.2U Active CN215451660U (en) | 2021-07-30 | 2021-07-30 | Protection device for battery explosion and ignition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024072145A1 (en) * | 2022-09-30 | 2024-04-04 | 주식회사 엘지화학 | Composition |
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2021
- 2021-07-30 CN CN202121778022.2U patent/CN215451660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024072145A1 (en) * | 2022-09-30 | 2024-04-04 | 주식회사 엘지화학 | Composition |
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