Automatic fire extinguishing type storage battery pack for warehouse

Abstract

The utility model discloses an automatic fire extinguishing type storage battery pack for a warehouse, which relates to the technical field of batteries and comprises a box body, at least two batteries are accommodated in the box body, partition plates are arranged in the box body, and the space in the box body is divided into storage units in one-to-one correspondence with the batteries by the partition plates. Fire extinguishing pastes are arranged on the sides, facing the batteries, of the partition plates The utility model aims to provide the automatic fire extinguishing type storage battery pack for the warehouse, which inhibits thermal runaway, prevents chain fire disasters and has a good fire extinguishing effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to an automatic fire extinguishing storage battery pack for a warehouse. Background Art

[0002] With the continuous improvement of the energy density of battery cells, the demand for improving the safety of battery packs is becoming increasingly urgent. Battery packs are prone to thermal runaway during use. Battery thermal runaway refers to a cumulative enhancement of current and battery temperature during constant voltage charging, which gradually damages the battery and causes a fire. Once a fire occurs, it will cause irreparable losses if it is not quickly extinguished. At present, the market has only made early warning actions for battery fires, and the fire extinguishing action still occurs after the fire. Human quick response to extinguish the fire. However, since battery fires spread extremely quickly, the fire cannot be effectively controlled if the human fire extinguishing response is delayed. Therefore, it is necessary to propose a battery pack that can automatically extinguish the fire as soon as possible when a fire occurs.

[0003] The prior art includes an invention patent entitled "Battery Automatic Fire Extinguishing Device", the publication number of which is WO2024090924A1. This invention relates to a battery automatic fire extinguishing device, comprising: a battery pack having a plurality of battery modules installed therein; a fire extinguishing liquid tank arranged outside the battery pack and filled with a fire extinguishing liquid; and a plurality of fire extinguishing pipes, wherein the plurality of fire extinguishing pipes connect the fire extinguishing liquid tank to each of the plurality of battery modules, and connect the fire extinguishing liquid tank to the battery module where the fire occurs in the plurality of battery modules, so as to supply and spray the fire extinguishing liquid to the battery module where the fire occurs, so that when a fire occurs in the battery module, the fire can be extinguished immediately in the early stage, and large-scale fires and personal injuries can be prevented in advance. However, this invention cannot achieve internal pressure balance, which can easily cause the external box to rupture and cause the fire to spread. Summary of the Invention

[0004] The utility model aims to provide an automatic fire extinguishing storage battery pack for warehouses, which can suppress thermal runaway, prevent chain fires and have good fire extinguishing effect.

[0005] The technical solutions adopted by the present invention to achieve the above-mentioned purpose are:

[0006] An automatic fire-extinguishing storage battery pack for warehouses includes a box body, which contains no less than two batteries. The box body is provided with a partition plate, which separates the space in the box body into storage units corresponding to the batteries one by one. The partition plate is provided with a fire-extinguishing sticker on the side facing the battery.

[0007] Through the overall design of the automatic fire extinguishing storage battery pack for the warehouse, multiple partitions are provided in the box. It is necessary to explain the degree. The partitions are arranged parallel to the inner wall of the box, so that the storage units separated in the box can realize that each battery has a separate space for storage. In addition, a fire extinguishing sticker is provided on the side of the partition facing the battery. When the battery overheats or burns violently, the open flame or the high temperature inside will trigger the fire extinguishing sticker. The fire extinguishing sticker will break and release the fire extinguishing agent to extinguish the fire and prevent the flame from continuing to spread. The partitions between the batteries are provided to separate them, which is beneficial to prevent the open flame or high temperature from igniting adjacent batteries. Since the fire spreads very quickly after the battery fire, and manual fire extinguishing measures are often too late, the design of this application can greatly improve the fire fighting after the battery fire in the box and prevent the fire from spreading further.

[0008] It should be noted that the box body includes a box base and a box cover, and electronic components are also arranged in the box body. Furthermore, a fire extinguishing sticker is provided on the inner wall of the box base, and the fire extinguishing sticker is provided around the electronic components.

[0009] Furthermore, the battery adopts a single-cell battery.

[0010] Furthermore, the fire extinguishing patch uses a perfluorohexanone fire extinguishing patch. When the fire extinguishing patch with the above-mentioned coating is used, it can be achieved that when the perfluorohexanone fire extinguishing patch is exposed to a temperature of 80-130°C and / or an open flame environment, it can break and vaporize to release fire extinguishing materials to achieve cooling and / or fire prevention and / or fire extinguishing purposes, thereby suppressing thermal runaway, actively cooling, and actively extinguishing fires; in addition, the use of perfluorohexanone as a fire extinguishing agent greatly reduces the vaporization loss of perfluorohexanone in the microcapsule under normal conditions, and has a longer service life. It should be noted that perfluorohexanone vaporizes quickly after extinguishing the fire, is non-conductive, does not pollute the protected object, and will not cause damage to financial, archival materials, and precision facilities. It can greatly reduce the losses after the fire disaster and prevent damage to other materials or devices in the warehouse.

[0011] According to an embodiment of the present invention, the spacer includes a base plate. A first plate body is provided on a side of the base plate facing the battery. A buffer opening is formed on the first plate body. At least one buffer assembly is provided in the buffer opening.

[0012] Multiple buffer components are located within the buffer opening to absorb the impact of a fire or explosion caused by the corresponding battery. It should be noted that the top side of the buffer component is flush with the first plate. This allows the buffer component and the first plate to work together to secure the battery when the battery is attached or brought into close proximity with the first plate, improving the battery's securement.

[0013] According to an embodiment of the present invention, a buffer block is provided in the buffer opening and is matched with the buffer assembly. The buffer block is connected to the base plate.

[0014] According to an embodiment of the present invention, the buffer block and the buffer plate are correspondingly arranged to form a buffer cavity between the buffer plate and the base plate, and an elastic plate is provided in the buffer cavity.

[0015] The buffer block and buffer substrate are configured in a corresponding manner, forming a buffer cavity between the two. In the event of a battery explosion or deflagration, a force acting on the buffer plate will compress the buffer cavity and the buffer block, absorbing the impact force. This prevents the impact from causing irreversible damage to the substrate, and thus prevents a fire in a single storage cell from spreading to adjacent storage cells. Furthermore, the buffer cavity helps maintain temperature, preventing a rapid increase in temperature in adjacent storage cells during a battery fire or explosion.

[0016] Wherein, an elastic plate is provided in the buffer cavity, and the elastic plate can further improve the impact absorption effect of the buffer cavity.

[0017] According to an embodiment of the present invention, the elastic plate is bent.

[0018] It should be noted that the length direction of the bending plate is parallel to the substrate, and the elastic plate is bent into a wavy shape. When the elastic plate is compressed by the buffer plate, the wavy area of the elastic plate is compressed to a flat state, which greatly improves the buffer cavity's ability to absorb impact; and through the design of the elastic plate, the moving direction of the buffer plate can be achieved at a perpendicular distance between the elastic plate and the substrate, preventing the tilted movement of the buffer plate from reducing the buffering effect of the buffer plate on impact, and then causing the buffer plate to detach, etc.

[0019] There are many ways to fix the elastic plate, including but not limited to fixing the elastic plate portion to the base plate, fixing the elastic plate portion to the buffer plate, and fixing the elastic plate portion to the buffer block.

[0020] According to an embodiment of the present invention, the buffer assembly includes a buffer plate, and a protrusion is arranged on a side of the buffer plate facing away from the base plate.

[0021] A plurality of protrusions are arranged on the side of the buffer plate facing away from the substrate. On the one hand, the protrusions can improve the contact effect when in contact with the battery, and can ensure that the battery remains stable during movement or transportation, that is, when the battery vibrates or shakes, the protrusions can absorb the vibration or shaking; on the other hand, during the contact between the protrusions and the battery, a certain space can be provided between the protrusions and the buffer plate. Since the fire extinguishing patch and the buffer component are also fitted together, this space can increase the release speed of the fire extinguishing agent of the fire extinguishing patch, and the fire extinguishing agent can be released through this space after being released, thereby improving the release effect, that is, achieving the effect of covering the entire battery.

[0022] Furthermore, the buffer plate is made of elastic material.

[0023] According to an embodiment of the present invention, positioning blocks are disposed on both the portion of the elastic plate and the portion of the base plate exposed in the buffer cavity.

[0024] It should be noted that the arrangement of the positioning blocks on the elastic plate and the positioning blocks on the substrate includes but is not limited to the following methods: the positioning blocks on the elastic plate and the positioning blocks on the substrate are arranged correspondingly, and the positioning blocks on the elastic plate and the positioning blocks on the substrate are arranged alternately.

[0025] Through the arrangement of the positioning blocks, when the positioning blocks on the elastic plate are arranged correspondingly to the positioning blocks on the base plate, there is always space for gas storage during the compression process in the buffer cavity, which further improves the temperature control effect; when the positioning blocks on the elastic plate and the positioning blocks on the base plate are arranged alternately, the compression effect of the internal gas can be improved, that is, the absorption effect of the impact force is improved, and the vertical movement effect of the elastic plate can be guaranteed.

[0026] Furthermore, the elastic plate and the positioning blocks are arranged correspondingly, that is, the crests and troughs of the elastic plate can be arranged correspondingly to the positioning blocks on the elastic plate and the positioning blocks on the base plate respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the automatic fire extinguishing storage battery pack for warehouses;

[0028] Figure 2 Schematic diagram of the partition board;

[0029] Figure 3 A schematic diagram of a partition plate structure;

[0030] Figure 4 Schematic diagram of another partition plate structure.

[0031] Reference numerals: box body 1, box base 11, box cover 12, battery 2, partition plate 3, base plate 31, first plate 32, buffer port 33, buffer block 34, buffer assembly 4, buffer plate 41, protrusion 42, buffer cavity 43, elastic plate 44, positioning block 45. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below with reference to the specific embodiments and accompanying drawings:

[0033] Example 1:

[0034] like Figure 1 - Figure 4As shown, an automatic fire-extinguishing storage battery pack for warehouses includes a box 1, which accommodates no less than two batteries 2. A partition 3 is provided in the box 1, which divides the space in the box 1 into storage units corresponding to the batteries 2 one by one. A fire-extinguishing sticker is provided on the side of the partition 3 facing the battery 2.

[0035] Through the overall design of the automatic fire extinguishing storage battery pack for the warehouse, a plurality of partitions 3 are provided in the box body 1. It should be noted that the partitions 3 are arranged parallel to the inner wall of the box body 1, so that the storage units separated in the box body 1 can realize that each battery 2 has a separate space for storage. A fire extinguishing sticker is provided on the side of the partition 3 facing the battery 2. When the battery 2 overheats or burns violently, the open flame or the high temperature inside will trigger the fire extinguishing sticker, which will break and release the fire extinguishing agent to extinguish the fire and prevent the flame from continuing to spread. The partitions 3 provided between the batteries 2 for separation are conducive to preventing the open flame or high temperature from igniting the adjacent batteries 2. Since the fire spreads very quickly after the battery 2 catches fire, and manual fire extinguishing measures are often too late, the design of this application can greatly improve the fire fighting after the battery 2 in the box body 1 catches fire and prevent the fire from spreading further.

[0036] in, Figure 1 A schematic representation of the partition plate 3 in the box body 1, wherein the partition plate 3 is used to separate the space in the box body 1 into storage units corresponding to the batteries 2 one by one.

[0037] It should be noted that the box body 1 includes a box base 11 and a box cover 12, and electronic components are also arranged in the box body 1. Furthermore, a fire extinguishing sticker is provided on the inner wall of the box base 11, and the fire extinguishing sticker is arranged around the electronic components.

[0038] Furthermore, the battery 2 is a single-cell battery 2 .

[0039] Furthermore, the fire extinguishing patch uses a perfluorohexanone fire extinguishing patch. When the fire extinguishing patch with the above-mentioned coating is used, it can be achieved that when the perfluorohexanone fire extinguishing patch is exposed to a temperature of 80-130°C and / or an open flame environment, it can break and vaporize to release fire extinguishing materials to achieve cooling and / or fire prevention and / or fire extinguishing purposes, thereby suppressing thermal runaway, actively cooling, and actively extinguishing fires; in addition, the use of perfluorohexanone as a fire extinguishing agent greatly reduces the vaporization loss of perfluorohexanone in the microcapsule under normal conditions, and has a longer service life. It should be noted that perfluorohexanone vaporizes quickly after extinguishing the fire, is non-conductive, does not pollute the protected object, and will not cause damage to financial, archival materials, and precision facilities. It can greatly reduce the losses after the fire disaster and prevent damage to other materials or devices in the warehouse.

[0040] The materials used for the fire extinguishing patches in this case include but are not limited to the following sources: materials disclosed in the invention patent with publication number CN114736554A entitled "An environmentally friendly fire retardant coating and its preparation method", materials disclosed in the invention patent with publication number CN114748830A entitled "A perfluorohexanone microcapsule fire extinguishing material and its preparation method", etc.

[0041] The partition plate 3 includes a base plate 31 . A first plate body 32 is provided on a side of the base plate 31 facing the battery 2 . A buffer opening 33 is defined in the first plate body 32 . At least one buffer assembly 4 is provided in the buffer opening 33 .

[0042] Multiple buffer components 4 are positioned within the buffer opening 33 to absorb the impact of any deflagration or explosion generated by the corresponding battery 2. It should be noted that the top side of the buffer component 4 is flush with the first plate 32. This allows the buffer component 4 and the first plate 32 to cohere against the battery 2 when the battery 2 is in contact with or close to the first plate 32, thereby improving the securement of the battery 2.

[0043] like Figure 3 The schematic diagram shown is that only one side of the substrate 31 faces the battery 2. Figure 4 The schematic diagram shows that both sides of the substrate 31 face the battery 2 .

[0044] A buffer block 34 is provided in the buffer opening 33 and is matched with the buffer assembly 4 . The buffer block 34 is connected to the base plate 31 .

[0045] The buffer block 34 is disposed correspondingly to the buffer plate 41 , so that a buffer cavity 43 is formed between the buffer plate 41 and the base plate 31 . An elastic plate 44 is disposed in the buffer cavity 43 .

[0046] The buffer block 34 and the buffer substrate 31 are arranged in a corresponding manner, so a buffer cavity 43 can be formed between the buffer block 34 and the buffer substrate 31. When the battery 2 explodes or deflagrates, an approaching impact force is applied to the buffer plate 41. The buffer plate 41 compresses the buffer cavity 43 and the buffer block 34. The buffer block 34 and the buffer cavity 43 absorb the impact force, thereby preventing the impact force from causing irreversible damage to the substrate 31 and thus preventing the battery 2 in a single storage unit from catching fire and spreading to adjacent storage units. In addition, the provision of the buffer cavity 43 is also conducive to temperature maintenance, that is, preventing the temperature in adjacent storage units from rapidly increasing during the process of the battery 2 in the storage unit deflagration or explosion.

[0047] An elastic plate 44 is provided in the buffer cavity 43 , and the elastic plate 44 can further improve the impact absorption effect of the buffer cavity 43 .

[0048] The elastic plate 44 is bent.

[0049] It should be noted that the length direction of the bending plate is parallel to the substrate 31, and the elastic plate 44 is bent into a wavy shape. When the elastic plate 44 is compressed by the buffer plate 41, the wavy area of the elastic plate 44 is compressed to a flat state, which greatly improves the buffer cavity 43's ability to absorb impact; and through the design of the elastic plate 44, the moving direction of the buffer plate 41 can be achieved at a vertical distance between the elastic plate 44 and the substrate 31, preventing the tilted movement of the buffer plate 41 from reducing the buffering effect of the buffer plate 41 on impact, and then causing the buffer plate 41 to detach, etc.

[0050] There are multiple ways to fix the elastic plate 44 , including but not limited to partially connecting the elastic plate 44 to the base plate 31 , partially connecting the elastic plate 44 to the buffer plate 41 , and partially connecting the elastic plate 44 to the buffer block 34 .

[0051] The buffer assembly 4 includes a buffer plate 41 , and a protrusion 42 is disposed on the side of the buffer plate 41 facing away from the base plate 31 .

[0052] A plurality of protrusions 42 are arranged on the side of the buffer plate 41 facing away from the substrate 31. On the one hand, the protrusions 42 can improve the contact effect when in contact with the battery 2, and can ensure that the battery 2 remains stable during movement or transportation, that is, when the battery 2 vibrates or shakes, the protrusions 42 can absorb the vibration or shaking; on the other hand, during the contact between the protrusions 42 and the battery 2, a certain space can be provided between the protrusions 42 and the buffer plate 41. Since the fire extinguishing patch and the buffer component 4 are also fitted together, this space can increase the release speed of the fire extinguishing agent of the fire extinguishing patch, and the fire extinguishing agent can be released through this space after being released, thereby improving the release effect, that is, achieving the effect of covering the entire battery 2.

[0053] Furthermore, the buffer plate 41 is made of elastic material.

[0054] Positioning blocks 45 are disposed on the portion of the elastic plate 44 and the portion of the base plate 31 exposed in the buffer cavity 43 .

[0055] It should be noted that the arrangement of the positioning blocks 45 on the elastic plate 44 and the positioning blocks 45 on the substrate 31 includes but is not limited to the following methods: the positioning blocks 45 on the elastic plate 44 and the positioning blocks 45 on the substrate 31 are arranged correspondingly, and the positioning blocks 45 on the elastic plate 44 and the positioning blocks 45 on the substrate 31 are arranged in an staggered manner.

[0056] Through the arrangement of the positioning blocks 45, when the positioning blocks 45 on the elastic plate 44 correspond to the positioning blocks 45 on the substrate 31, there is always space for gas storage during the compression process in the buffer chamber 43, which further improves the temperature control effect; when the positioning blocks 45 on the elastic plate 44 and the positioning blocks 45 on the substrate 31 are staggered, the compression effect of the internal gas can be improved, that is, the absorption effect of the impact force is improved, and the vertical movement effect of the elastic plate 44 can be guaranteed.

[0057] Furthermore, the elastic plate 44 and the positioning blocks 45 are arranged correspondingly, that is, the crests and troughs of the elastic plate 44 can be arranged correspondingly to the positioning blocks 45 on the elastic plate 44 and the positioning blocks 45 on the base plate 31 respectively.

[0058] Example 2:

[0059] According to another embodiment of the present invention, an automatic fire extinguishing storage battery pack for a warehouse is different from the first embodiment in that a buffer platform 35 is provided corresponding to the buffer block 34 and the buffer plate 41 .

[0060] The buffer platform 35 is beneficial for the arrangement of the buffer plate 41 , and the buffer platform 35 can improve the vertical movement effect of the elastic plate 44 .

[0061] The buffer block 34 includes an annular buffer matrix, which can improve the absorption of the impact force when the battery 2 explodes.

[0062] The embodiments described above provide a detailed description of the technical solutions of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, supplements or similar substitutions made within the scope of the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic fire extinguishing storage battery pack for a warehouse, comprising a box (1), wherein the box (1) contains no less than two batteries (2), characterized in that: A partition plate (3) is provided in the box body (1), and the partition plate (3) separates the space in the box body (1) into storage units corresponding one to one with the batteries (2). A fire extinguishing sticker is provided on the side of the partition plate (3) facing the battery (2).

2. The automatic fire extinguishing storage battery pack for warehouse use according to claim 1, characterized in that: The partition plate (3) comprises a base plate (31), a first plate body (32) being provided on a side of the base plate (31) facing the battery (2), a buffer opening (33) being provided on the first plate body (32), and at least one buffer assembly (4) being provided in the buffer opening (33).

3. The automatic fire extinguishing storage battery pack for warehouse use according to claim 2, characterized in that: A buffer block (34) coordinated with the buffer assembly (4) is provided in the buffer opening (33), and the buffer block (34) is connected to the base plate (31).

4. The automatic fire extinguishing storage battery pack for warehouse use according to claim 2, characterized in that: The buffer assembly (4) comprises a buffer plate (41), and a protrusion (42) is arranged on the side of the buffer plate (41) facing away from the base plate (31).

5. The automatic fire extinguishing storage battery pack for warehouse according to claim 3 and claim 4, characterized in that: The buffer block (34) is arranged correspondingly to the buffer plate (41), so that a buffer cavity (43) is formed between the buffer plate (41) and the base plate (31), and an elastic plate (44) is provided in the buffer cavity (43).

6. The automatic fire extinguishing storage battery pack for warehouse use according to claim 5, characterized in that: Positioning blocks (45) are evenly distributed on the portion of the elastic plate (44) and the portion of the base plate (31) exposed in the buffer cavity (43).

7. The automatic fire extinguishing storage battery pack for warehouse use according to claim 5, characterized in that: The elastic plate (44) is bent.

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