Multilevel fireproof isolation energy storage battery box

The multi-level fireproof isolation structure design solves the problem of insufficient fire resistance of energy storage battery boxes, achieving high safety and convenient disassembly and assembly, which facilitates the installation and maintenance of battery packs.

CN224342412UActive Publication Date: 2026-06-09DONGGUAN FANGYUAN XINDA INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FANGYUAN XINDA INTELLIGENT EQUIP CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing energy storage battery boxes have insufficient fire resistance, poor multi-level fire isolation capabilities, and are inconvenient to disassemble and assemble, affecting the installation and maintenance of battery packs.

Method used

A multi-level fireproof and isolated energy storage battery box was designed, including a fixed base, an outer protective box, a middle protective box, and a battery protection inner box. The multi-level fireproof isolation and convenient disassembly and assembly are achieved through a snap-fit ​​structure and closing components.

Benefits of technology

It achieves multi-layer fireproof isolation, improves safety and ease of disassembly and assembly, and facilitates the installation and maintenance of battery packs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to fireproof battery box technical field discloses a multilevel fireproof isolation energy storage battery box, including fixed base and energy storage battery group, both sides of fixed base top are equipped with outer buckle frame, and the outer protection box is installed in the snap between two outer buckle frames. The utility model discloses, through in outer protection box, middle protection box and battery protection inner box, can install protection to energy storage battery group multilayer, fireproof isolation performance is excellent, and the closure assembly can carry out the in succession adhering type sealing of outer protection box, middle protection box and battery protection inner box, and with outer protection box and fixed base upper bolt joint fixed, only needs to open closure assembly to be able to dismouting, and the bottom of outer protection box is inserted and is clamped in outer buckle frame, and the middle protection box is inserted and is clamped on inner buckle frame, convenient to stretch dismouting, make the device have multilayer fireproof capacity, and the fireproof isolation capacity is excellent, and the security is high, and the dismouting is convenient, and the installation and the overhaul of battery group are convenient.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof battery box technology, specifically a multi-level fireproof and isolated energy storage battery box. Background Technology

[0002] With the rapid development of renewable energy and the increasing demand for energy storage, energy storage battery systems are widely used in the energy storage field. Energy storage battery boxes are an important component of energy storage battery modules, used to install and protect the battery packs. As the core equipment for electrical energy storage, the safety of the energy storage battery box directly affects the reliability and stability of the system. Although lithium-ion batteries have the advantage of high energy density, the risk of fire caused by thermal runaway remains a pain point in the industry. Therefore, fire-resistant insulation layers are needed for fire protection.

[0003] Existing technologies mostly use single-layer fireproof materials (such as ceramic fiber, asbestos board) or simple layered structures. Their fireproof performance is prone to failure at high temperatures, making it difficult to effectively prevent the spread of fire. The multi-layer fireproof isolation capability is relatively insufficient, and the fireproof performance and protection capability are inadequate. In addition, the overall disassembly and assembly convenience is insufficient, making it difficult to conveniently disassemble, repair, and use the battery. Therefore, the practicality is not good. To address these issues, we propose a multi-layer fireproof isolation energy storage battery box. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-level fireproof and isolated energy storage battery box, which has multiple fireproof capabilities, excellent fire isolation capabilities, high safety, and is easy to disassemble and assemble, facilitating the installation and maintenance of battery packs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-level fireproof and isolated energy storage battery box, including a fixed base and an energy storage battery pack, wherein the fixed base is provided with external buckle frames on both sides of the top.

[0008] An outer protective box is installed between the two outer buckle frames. The inner bottom wall of the outer protective box is provided with inner buckle frames on both sides. A middle protective box is fixed between the two inner buckle frames. A fireproof base plate is fixedly connected to the inner bottom wall of the middle protective box. A battery protection inner box is bolted to the top of the fireproof base plate.

[0009] The energy storage battery pack is located inside the battery protection inner box. The front of the outer protection box, the middle protection box, and the battery protection inner box are all open. The front of the energy storage battery pack is provided with a closing component, which is closed to the front of the outer protection box, the middle protection box, and the battery protection inner box. The closing component is bolted to the outer protection box and the fixed base.

[0010] Preferably, both outer and inner snap-fit ​​frames are F-shaped, the two outer snap-fit ​​frames are symmetrical to each other, the two inner snap-fit ​​frames are distributed correspondingly to each other, the central protection box is located inside the outer protection box, and the battery protection inner box is located inside the central protection box.

[0011] Preferably, the bottom of both sides of the outer protective box is provided with an outer bearing plate, and the two outer bearing plates are correspondingly engaged and installed in two outer buckle frames, and the bottom of the outer protective box is far away from the top of the fixed base.

[0012] Preferably, the bottom of both sides of the central protective box is provided with a central support plate, and the two central support plates are correspondingly engaged and installed in two inner buckle frames, and the bottom of the central protective box is far away from the inner bottom wall of the outer protective box.

[0013] Preferably, the fireproof base plate is an inverted U-shaped plate, which is bolted to the inner bottom wall of the central protection box, and the battery protection inner box is located at the center of the outer protection box and the central protection box.

[0014] Preferably, the closure assembly includes an inner layer plate, a middle layer plate, an outer layer plate, and a bolt handle. The middle layer plate is fixedly connected between the inner layer plate and the outer layer plate. The inner layer plate is attached to the front of the inner battery protection box, the middle layer plate is attached to the front of the middle protection box, the outer layer plate is attached to the front of the outer protection box, and the bolt handle is fixedly installed on the front of the outer layer plate. The bolt handle is bolted to the fixed base and the outer protection box.

[0015] Preferably, the bottom of the outer protective box is provided with a bolt fixing seat, and the bottom of the bolt fixing seat is bolted to the top of the fixing base.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a multi-level fireproof and isolated energy storage battery box, which has the following beneficial effects:

[0018] 1. This multi-level fireproof and isolated energy storage battery box features external snap-fit ​​frames on both sides of the top of the fixed base, facilitating the fixed installation of the outer protective box. Internal snap-fit ​​frames on both sides of the bottom wall of the outer protective box facilitate the installation and fixing of the middle protective box. Furthermore, a battery protection inner box is bolted to the bottom wall of the middle protective box, allowing the battery protection inner box to secure the energy storage battery pack. The fireproof base plate provides fireproof isolation and also serves as an auxiliary fireproof isolation layer, giving the device multi-level fireproof capabilities, excellent fireproof isolation performance, and high safety.

[0019] 2. This multi-level fireproof and isolated energy storage battery box features an integrated closure assembly on the front of the outer protective box, the middle protective box, and the inner battery protection box. The closure assembly sequentially seals the outer protective box, the middle protective box, and the inner battery protection box. The closure assembly is bolted to the outer protective box and the fixed base, ensuring stable installation. It can be disassembled simply by opening the closure assembly, facilitating the removal of the energy storage battery pack. The bottom of the outer protective box is inserted and snapped into the outer buckle frame, and the middle protective box is inserted and snapped into the inner buckle frame, facilitating stretching and disassembly. This makes the device easy to install and maintain, and facilitates the installation and maintenance of the battery pack. Attached Figure Description

[0020] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a rear-view perspective view of the structure of this utility model;

[0022] Figure 3 This is a three-dimensional sectional view of the structure of this utility model.

[0023] Figure 4 This is a three-dimensional side view sectional diagram of the structure of this utility model;

[0024] Figure 5 This is a rear perspective three-dimensional schematic diagram of the connection structure between the inner layer plate and the middle layer plate of this utility model.

[0025] In the diagram: 1. Fixed base; 2. Energy storage battery pack; 3. Outer snap-fit ​​frame; 4. Outer protective box; 41. Outer support plate; 5. Inner snap-fit ​​frame; 6. Middle protective box; 61. Middle support plate; 7. Fireproof base plate; 8. Battery protection inner box; 9. Closure assembly; 91. Inner layer plate; 92. Middle layer plate; 93. Outer layer plate; 94. Bolted handle; 10. Bolted fixing seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 A multi-level fireproof and fireproof energy storage battery box includes a fixed base 1 and an energy storage battery pack 2. Both sides of the top of the fixed base 1 are provided with external buckle frames 3.

[0028] An outer protective box 4 is installed between two outer buckle frames 3. Both sides of the inner bottom wall of the outer protective box 4 are provided with inner buckle frames 5. A middle protective box 6 is fixed between the two inner buckle frames 5. A fireproof base plate 7 is fixedly connected to the inner bottom wall of the middle protective box 6. A battery protection inner box 8 is bolted to the top of the fireproof base plate 7.

[0029] The energy storage battery pack 2 is located inside the inner battery protection box 8. The front of the outer protection box 4, the middle protection box 6 and the inner battery protection box 8 are all open. The front of the energy storage battery pack 2 is provided with a closing component 9, which is closed to the front of the outer protection box 4, the middle protection box 6 and the inner battery protection box 8. The closing component 9 is bolted to the outer protection box 4 and the fixed base 1.

[0030] The beneficial effects of this solution are as follows: External snap-fit ​​frames 3 are provided on both sides of the top of the fixed base 1 to facilitate the fixed installation of the outer protective box 4; internal snap-fit ​​frames 5 are provided on both sides of the inner bottom wall of the outer protective box 4 to facilitate the installation and fixing of the middle protective box 6; and the middle protective box 6 contains a battery protection inner box 8 to securely protect the energy storage battery pack 2; the fireproof base plate 7 provides fireproof isolation; the outer protective box 4, the middle protective box 6, and the battery protection inner box 8 can be installed in multiple layers for protection, providing excellent fireproof isolation performance; and the closing component 9 can... The outer protection box 4, the middle protection box 6, and the inner battery protection box 8 are sequentially sealed together and bolted to the outer protection box 4 and the fixed base 1. The installation is stable and can be disassembled and installed by simply opening the closing component 9 to put in and take out the energy storage battery pack 2. The bottom of the outer protection box 4 is inserted and snapped into the outer buckle frame 3, and the middle protection box 6 is inserted and snapped into the inner buckle frame 5, which facilitates stretching and disassembly. This gives the device multi-layer fire protection capability, excellent fire isolation capability, high safety, and convenient disassembly and assembly, making it easy to install and maintain the battery pack.

[0031] Furthermore, both outer buckle frames 3 and inner buckle frames 5 are F-shaped, the two outer buckle frames 3 are symmetrical to each other, the two inner buckle frames 5 are distributed correspondingly to each other, the central protection box 6 is set inside the outer protection box 4, and the battery protection inner box 8 is set inside the central protection box 6.

[0032] By setting both the outer buckle frame 3 and the inner buckle frame 5 to be F-shaped and symmetrical, when the outer protection box 4 and the middle protection box 6 are engaged, they are far away from the ground, thus playing a role in fire isolation and providing excellent protection.

[0033] Furthermore, the bottom of both sides of the outer protective box 4 is provided with an outer bearing plate 41. The two outer bearing plates 41 are correspondingly engaged and installed in the two outer buckle frames 3. The bottom of the outer protective box 4 is far away from the top of the fixed base 1.

[0034] By setting an outer support plate 41, which is installed inside two outer buckle frames 3, installation is convenient. The bottom of the outer protective box 4 is far away from the top of the fixed base 1, which plays an isolation role and provides good fire protection.

[0035] Furthermore, the bottom of both sides of the central protective box 6 is provided with a central bearing plate 61. The two central bearing plates 61 are correspondingly engaged and installed in the two inner buckle frames 5. The bottom of the central protective box 6 is far away from the inner bottom wall of the outer protective box 4.

[0036] By setting a central support plate 61, which is correspondingly snapped into the two inner snap-fit ​​frames 5, the installation is convenient and stable. Furthermore, the bottom of the central protective box 6 is far from the inner bottom wall of the outer protective box 4, thus playing a role in isolation and protection, and providing good fire protection.

[0037] Furthermore, the fireproof base plate 7 is an inverted U-shaped plate, and the fireproof base plate 7 is bolted to the inner bottom wall of the middle protection box 6. The battery protection inner box 8 is located at the center of the outer protection box 4 and the middle protection box 6.

[0038] By setting the fireproof base plate 7 as an inverted U-shaped plate, the fireproof base plate 7 is bolted to the inner bottom wall of the middle protection box 6, which provides good installation and protection. The battery protection inner box 8 is located at the center of the outer protection box 4 and the middle protection box 6, which plays a role in installation and bearing, and facilitates the installation and fixing of the whole device.

[0039] Furthermore, the closing assembly 9 includes an inner layer plate 91, a middle layer plate 92, an outer layer plate 93, and a bolt handle 94. The middle layer plate 92 is fixedly connected between the inner layer plate 91 and the outer layer plate 93. The inner layer plate 91 is attached to the front of the inner battery protection box 8, the middle layer plate 92 is attached to the front of the middle protection box 6, the outer layer plate 93 is attached to the front of the outer protection box 4, and the bolt handle 94 is fixedly installed on the front of the outer layer plate 93. The bolt handle 94 is bolted to the fixed base 1 and the outer protection box 4.

[0040] The closure assembly 9 includes an inner layer plate 91, a middle layer plate 92, an outer layer plate 93, and a bolt handle 94. The inner layer plate 91, the middle layer plate 92, and the outer layer plate 93 are sequentially fitted and sealed to the openings of the outer protective box 4, the middle protective box 6, and the battery protection inner box 8. The bolt handle 94 serves as a lifting mechanism and is bolted to the outer protective box 4 and the fixed base 1. The bolting and fixing are stable and the installation and fixing effect is good.

[0041] Furthermore, the bottom back of the outer protective box 4 is provided with bolt fixing seat 10, and the bottom of the bolt fixing seat 10 is bolted to the top of the fixing base 1.

[0042] By setting the bolted fixing seat 10, the outer protective box 4 can be easily fixed on the fixing base 1, so that the fixing base 1 can be fixed at both the front and the back, and can be installed and fixed stably.

[0043] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0044] Working principle: The outer buckle frame 3 is provided on both sides of the top of the fixed base 1 to facilitate the fixed installation of the outer protection box 4. The inner buckle frame 5 is provided on both sides of the inner bottom wall of the outer protection box 4 to facilitate the installation and fixation of the middle protection box 6. The inner bottom wall of the middle protection box 6 is bolted to the inner battery protection box 8, so that the inner battery protection box 8 can play a role in the installation and fixation of the energy storage battery pack 2. The fireproof base plate 7 plays an auxiliary role in fireproof isolation. The outer protection box 4, the middle protection box 6 and the inner battery protection box 8 all play a protective role, providing multi-layer installation protection for the energy storage battery pack 2, with excellent fireproof isolation performance.

[0045] The outer protective box 4, the middle protective box 6, and the inner battery protection box 8 are all integrally equipped with a closing component 9 on their front sides. The closing component 9 can sequentially seal the outer protective box 4, the middle protective box 6, and the inner battery protection box 8. The closing component 9 can also be bolted to the outer protective box 4 and the fixed base 1, ensuring stable installation. It can be disassembled simply by opening the closing component 9, facilitating the removal of the energy storage battery pack 2. The bottom of the outer protective box 4 is inserted and snapped into the outer buckle frame 3, and the middle protective box 6 is inserted and snapped into the inner buckle frame 5, facilitating stretching and disassembly. This gives the device multi-layer fire protection capabilities, excellent fire isolation capabilities, high safety, and convenient disassembly and assembly, making it easy to install and maintain the battery pack.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-level fireproof isolated energy storage battery box, comprising a fixed base (1) and an energy storage battery pack (2), characterized in that: The fixed base (1) has external buckle frames (3) on both sides of its top; An outer protective box (4) is installed between the two outer buckle frames (3). An inner buckle frame (5) is provided on both sides of the inner bottom wall of the outer protective box (4). A middle protective box (6) is fixed between the two inner buckle frames (5). A fireproof base plate (7) is fixedly connected to the inner bottom wall of the middle protective box (6). A battery protection inner box (8) is bolted to the top of the fireproof base plate (7). The energy storage battery pack (2) is located inside the battery protection inner box (8). The front of the outer protection box (4), the middle protection box (6) and the battery protection inner box (8) are all open. The front of the energy storage battery pack (2) is provided with a closing component (9). The closing component (9) is closed to the front of the outer protection box (4), the middle protection box (6) and the battery protection inner box (8). The closing component (9) is bolted to the outer protection box (4) and the fixed base (1).

2. The multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: Both outer buckle frames (3) and inner buckle frames (5) are F-shaped. The two outer buckle frames (3) are symmetrical to each other, and the two inner buckle frames (5) are distributed correspondingly to each other. The central protection box (6) is located inside the outer protection box (4), and the battery protection inner box (8) is located inside the central protection box (6).

3. The multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: The bottom of both sides of the outer protective box (4) is provided with an outer bearing plate (41). The two outer bearing plates (41) are correspondingly snapped into two outer buckle frames (3). The bottom of the outer protective box (4) is far away from the top of the fixed base (1).

4. The multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: The bottom of both sides of the central protective box (6) is provided with a central support plate (61). The two central support plates (61) are correspondingly engaged and installed in the two inner buckle frames (5). The bottom of the central protective box (6) is far away from the inner bottom wall of the outer protective box (4).

5. A multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: The fireproof base plate (7) is an inverted U-shaped plate. The fireproof base plate (7) is bolted to the inner bottom wall of the middle protection box (6). The battery protection inner box (8) is located at the center of the outer protection box (4) and the middle protection box (6).

6. The multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: The closing assembly (9) includes an inner layer plate (91), a middle layer plate (92), an outer layer plate (93), and a bolt handle (94). The middle layer plate (92) is fixedly connected between the inner layer plate (91) and the outer layer plate (93). The inner layer plate (91) is attached to the front of the battery protection inner box (8). The middle layer plate (92) is attached to the front of the middle protection box (6). The outer layer plate (93) is attached to the front of the outer protection box (4). The bolt handle (94) is fixedly installed on the front of the outer layer plate (93). The bolt handle (94) is bolted to the fixed base (1) and the outer protection box (4).

7. A multi-level fireproof and fire-resistant energy storage battery box according to claim 1, characterized in that: The bottom back of the outer protective box (4) is provided with a bolt fixing seat (10), and the bottom of the bolt fixing seat (10) is bolted to the top of the fixing base (1).