CN214181516U - Fire extinguishing spraying structure in lithium ion battery box - Google Patents
Fire extinguishing spraying structure in lithium ion battery box Download PDFInfo
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- CN214181516U CN214181516U CN202020948685.3U CN202020948685U CN214181516U CN 214181516 U CN214181516 U CN 214181516U CN 202020948685 U CN202020948685 U CN 202020948685U CN 214181516 U CN214181516 U CN 214181516U
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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 lithium ion battery incasement spraying structure of putting out a fire, the battery module includes module shell and module upper cover plate, the module upper cover plate can be covered and close battery monomer sealed in the battery module on the module shell, and be formed with the restricted space between the lower surface of free upper end of battery and module upper cover plate, a high-pressure injection rail one end stretches into to the battery box in, the other end is located outside the battery box, be connected with high-pressure fire extinguishing agent, be connected with a plurality of injection structure on the high-pressure injection rail, the injection structure stretches into in each battery module and the injection structure can be with the fire extinguishing agent intake in the restricted space, make the fire extinguishing agent cover on battery monomer. The utility model discloses can also cover the fire extinguishing agent in other battery module simultaneously to the inside or thermal runaway battery monomer surface of battery module that takes place the thermal runaway of the accurate release of fire extinguishing agent, guarantee other battery module safety when fast to thermal runaway monomer and erupt the release gas cooling. Realizing the high-efficiency utilization of the medicament.
Description
Technical Field
The utility model belongs to new energy automobile public transport means field, concretely relates to lithium ion battery incasement is put out a fire and is sprayed structure.
Background
With the deepening of environmental protection, technical progress and energy safety attention of various countries, the application of internal combustion engines consuming a large amount of fossil energy in the field of road traffic is gradually replaced by various power systems adopting other energy sources, and the new energy automobile industry taking electromotion as the technical background is well developed.
In the existing fire extinguishing system arrangement scheme, a patent (a power battery fire extinguishing device and a power battery, CN 20170944629) directly sprays a fire extinguishing agent to a battery box, a patent (a vehicle-mounted battery fire extinguishing device, CN 201710481934) indiscriminately sprays the fire extinguishing agent to the inside of the battery box, a patent (a power battery fire extinguishing device, CN 201721639480; a power battery fire extinguishing device, CN 201821808119) presets cold aerosol in the battery box, and characteristic information such as smoke and heat released by thermal runaway triggers the cold aerosol device to actively or passively release the fire extinguishing agent to the inside of the battery box, and the common defect of the patent technologies is that the fire extinguishing agent cannot be accurately released to the surface or the inside of the thermal runaway battery, so that high-precision release of the agent and high-efficiency utilization of refrigeration efficiency are realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that it is not enough to above-mentioned prior art, the utility model provides a lithium ion battery incasement spray structure of putting out a fire, arrange the medicament high-pressure injection rail of putting out a fire and spray the branch road inside the battery box, spray the branch road and be connected with the high-pressure injection rail, after initiative or passive triggering, can be with fire extinguishing agent (liquid, gas, solid or their combination) accurate release to the battery module inside or the battery monomer surface of thermal runaway that takes place, also cover fire extinguishing agent in other battery modules simultaneously, guarantee other battery module safety when fast to thermal runaway monomer and erupt the release gas cooling. Realizing the high-efficiency utilization of the medicament.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
lithium ion battery incasement extinguishes fire and sprays structure, including the battery box, install a plurality of battery module in the battery box, placed a plurality of battery monomer side by side in the battery module, wherein: the battery module includes module shell and module upper cover plate, the module upper cover plate can be covered and close battery monomer sealed in battery module on the module shell, and be formed with the confined space between the lower surface of free upper end of battery and module upper cover plate, a high pressure sprays rail one end and stretches into to the battery box in, the other end is located outside the battery box, be connected with high-pressure fire extinguishing agent, be connected with a plurality of injection structure on the high pressure sprays the rail, the injection structure stretches into in each battery module and the injection structure can be with the fire extinguishing agent intake in the confined space, make the fire extinguishing agent cover on battery monomer.
In order to optimize the structural form, the specific measures adopted further comprise:
the high-pressure injection rail is of a hollow circular tube structure, and the part of the high-pressure injection rail, which is positioned in the battery box body, is guided from gaps among the battery modules.
The symmetry axis of the injection structure extending into the battery module is superposed with the center line of the battery module, and the injection structure is positioned in the middle of the upper cover plate of the module and the upper surface of the battery monomer.
The gaps between the battery modules are filled with a fireproof material.
The high-pressure injection rail part in the battery box body is fixedly communicated with the high-pressure injection rail part outside the battery box body through a joint, and the joint is fixed on the battery box body.
The battery box body is arranged in the new energy electric automobile.
The spraying structure is a nozzle or a spraying branch pipe.
This patent mainly has following advantage:
the agent directly acts on the interior of the thermal runaway module and the surface of the battery monomer, so that the cooling efficiency and the chemical inhibition effect of the fire extinguishing agent are fully exerted, the use efficiency of the fire extinguishing agent is improved, the loading amount of the fire extinguishing agent is reduced, and the economic cost of a system is reduced;
the fire extinguishing agent directly acts on the thermal runaway module, and the agent absorbs a large amount of thermal runaway to release heat, so that the damage of thermal disasters is reduced, and the fire extinguishing time is shorter due to the direct action on a high-temperature area;
the technical arrangement scheme taking the high-pressure injection rail as a core has the advantages of compact system structure, small occupied space and convenient and flexible arrangement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
Wherein the reference numerals are: the device comprises a battery box body 1, a high-pressure injection rail 2, a nozzle or injection branch pipe 3, a battery module 4, a module upper cover plate 5, a connector 6 and a battery monomer 7.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The lithium ion battery incasement of this embodiment spray structure of putting out a fire, including battery box 1, install a plurality of battery module 4 in the battery box 1, placed a plurality of battery monomer 7 side by side in the battery module 4, wherein: battery module 4 includes module shell and module upper cover plate 5, module upper cover plate 5 can cover and close battery monomer 7 sealed in battery module 4 on the module shell, and be formed with the confined space between the upper end of battery monomer 7 and the lower surface of module upper cover plate 5, 2 one end of a high-pressure injection rail stretches into to battery box 1 in, the other end is located outside battery box 1, be connected with high-pressure fire extinguishing agent, be connected with a plurality of injection structure on the high-pressure injection rail 2, injection structure stretches into in each battery module 4 and injection structure can be with the fire extinguishing agent intake in the confined space, make the fire extinguishing agent cover on battery monomer 7.
In the embodiment, the high-pressure injection rail 2 is a hollow circular tube structure, and the part of the high-pressure injection rail 2 located in the battery box 1 runs through the gap between the battery modules 4.
In the embodiment, the symmetry axis of the injection structure extending into the battery module 4 coincides with the center line of the battery module 4, and the injection structure is located in the middle of the upper surface of the module upper cover plate 5 and the upper surface of the battery cell 7.
In the embodiment, the gaps between the battery modules 4 are filled with a fireproof material.
In the embodiment, the high-pressure injection rail 2 part in the battery box body 1 is fixedly communicated with the high-pressure injection rail 2 part outside the battery box body 1 through the joint 6, and the joint 6 is fixed on the battery box body 1.
In the embodiment, the battery box 1 is installed in a new energy electric vehicle.
In the embodiment, the spray structure is a nozzle or spray manifold 3.
The technical scheme of the utility model is as shown in figure 1 and figure 2,
the battery box body 1: a mounting box body for the battery module 4;
high-pressure injection rail 2: the part of the fire extinguishing agent which is arranged in the battery box body 1 and extends out of the battery box body 1 is connected with the joint 6 to establish a high-pressure fire extinguishing agent passage;
nozzles or spray manifolds 3: is connected with the high-pressure injection rail 2 or is controlled by the shape of a nozzle, and the fire extinguishing agent is absorbed between the battery monomer 7 and the upper cover plate 5 of the module;
the battery module 4: the battery monomer is through the functional module of horizontal arrangement and electric series-parallel connection performance, in this technique, battery monomer 7 is inside the battery module, is the basic effect object that the extinguishing agent releases;
module upper cover plate 5: the fire extinguishing agent is positioned above the battery monomer, forms a limited space together with a shell (or a tooling structural part) of the module and the upper surface of the battery monomer, and in the limited space, the fire extinguishing agent is sprayed into and stays in the limited space to absorb the heat of the thermal runaway monomer and the energy of the discharged gas and reduce the flammability of the discharged gas.
And (6) a joint: the high pressure injection rail 2 is mechanically fixed in position and a physical connection is established with the injection pressure source and the substance source.
The battery cell 7: the basic constituent units of the battery module 4, which are basic functional units for storing electric energy, are connected in series and in parallel to form the battery module 4.
The basic working process is as follows:
an external pressure source and a fire extinguishing agent substance source enter the high-pressure injection rail 2 through the joint 6, and the fire extinguishing agent is released in a limited space formed by the upper end cover plate 5 of the battery module 4 and the battery monomer 7 through the nozzle or the injection branch pipe 3 under the induction of an active or passive release signal. In this confined space, the fire extinguishing agent is resided and is absorbed the free heat of taking place thermal runaway and the energy of letting out the gas, reduce the temperature of thermal runaway monomer and release gas, and simultaneously, fire extinguishing agent phase transition steam mixes with the combustible gas of eruption release, reduce the flammability of eruption release gas, prevent or delay thermal runaway monomer to closing on the monomer heat conduction of battery, alleviate the propagation of stretching of heat in battery module 4, reduce the free thermal hazard of thermal runaway, improve battery box 1 and inside energy storage module battery module 4 and battery monomer 7's thermal safety from the essence, reduce the risk that the lithium cell conflagration takes place.
The application case is as follows:
a circular section high-pressure injection rail 2 with the outer diameter of 6mm and the inner diameter of 4mm is preset inside a lithium ion battery box, and the high-pressure injection rail is provided with 6 nozzles which are just opposite to the center of a battery module 4. After 7 take place thermal runaway of a certain battery monomer in battery module 4, will put out a fire the direct battery box of introducing of medicament through high-pressure injection rail 2, the spout on the high-pressure injection rail 2 will put out a fire the accurate injection of medicament in battery module 4 that the thermal runaway takes place, also cover the fire extinguishing agent in other battery module 4 simultaneously, guarantee other battery module 4 safety in quick to thermal runaway monomer and eruption release gas cooling.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (6)
1. Lithium ion battery incasement extinguishes fire and sprays structure, including battery box (1), battery box (1) in install a plurality of battery module (4), battery module (4) in placed a plurality of battery monomer (7), characterized by side: the battery module (4) comprises a module shell and a module upper cover plate (5), the module upper cover plate (5) can be covered on the module shell to seal a battery monomer (7) in the battery module (4), a limited space is formed between the upper end of the battery monomer (7) and the lower surface of the module upper cover plate (5), one end of a high-pressure injection rail (2) extends into the battery box body (1), the other end of the high-pressure injection rail is positioned outside the battery box body (1) and is connected with a high-pressure fire extinguishing agent, the high-pressure injection rail (2) is connected with a plurality of injection structures, the injection structures extend into each battery module (4) and can absorb the fire extinguishing agent into the limited space, so that the fire extinguishing agent covers the battery monomer (7); the high-pressure injection rail (2) is of a hollow circular tube structure, and the part of the high-pressure injection rail (2) located in the battery box body (1) is guided through a gap between the battery modules (4).
2. The lithium ion battery box interior fire extinguishing spray structure according to claim 1, characterized in that: the symmetry axis of the spray structure extending into the battery module (4) coincides with the center line of the battery module (4), and the spray structure is positioned in the middle of the upper surface of the module upper cover plate (5) and the upper surface of the battery monomer (7).
3. The lithium ion battery box interior fire extinguishing spray structure according to claim 2, characterized in that: gaps among the battery modules (4) are filled with fireproof materials.
4. The lithium ion battery box interior fire extinguishing spray structure according to claim 3, characterized in that: the high-pressure injection rail (2) in the battery box body (1) is partially and fixedly communicated with the high-pressure injection rail (2) outside the battery box body (1) through a connector (6), and the connector (6) is fixed on the battery box body (1).
5. The lithium ion battery box interior fire extinguishing spray structure according to claim 4, characterized in that: the battery box body (1) is arranged in the new energy electric automobile.
6. The lithium ion battery box interior fire extinguishing spray structure according to claim 5, characterized in that: the spraying structure is a nozzle or a spraying branch pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948685.3U CN214181516U (en) | 2020-05-29 | 2020-05-29 | Fire extinguishing spraying structure in lithium ion battery box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948685.3U CN214181516U (en) | 2020-05-29 | 2020-05-29 | Fire extinguishing spraying structure in lithium ion battery box |
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| CN214181516U true CN214181516U (en) | 2021-09-14 |
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| CN202020948685.3U Active CN214181516U (en) | 2020-05-29 | 2020-05-29 | Fire extinguishing spraying structure in lithium ion battery box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497786A (en) * | 2022-02-22 | 2022-05-13 | 广东能源集团科学技术研究院有限公司 | Battery rack for container type energy storage power station and management method thereof |
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2020
- 2020-05-29 CN CN202020948685.3U patent/CN214181516U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497786A (en) * | 2022-02-22 | 2022-05-13 | 广东能源集团科学技术研究院有限公司 | Battery rack for container type energy storage power station and management method thereof |
| CN114497786B (en) * | 2022-02-22 | 2023-06-16 | 广东能源集团科学技术研究院有限公司 | Battery rack for container type energy storage power station and management method thereof |
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