Battery safety explosion-proof protection shell

Abstract

The utility model discloses a battery safety explosion -proof protection shell relates to battery protection technical field, including upper cover and lower cover, install the shell between upper cover and lower cover, install the shell in install the shell and install the isolation device for explosion -proof, the threading hole for wire connection is seted up to the upper cover. The utility model discloses the isolation device that sets up can effectively buffer and isolate the impact force when battery explosion, has improved the explosion -proof performance of protection shell, and the cooperation structure between upper cover and lower cover and install the shell has strengthened the overall structural strength and sealing property, is applicable to the safety protection of various batteries.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, specifically to a battery safety explosion-proof protective shell. Background Technology

[0002] With the continuous development of new energy technologies, batteries are being used more and more widely, such as in electric vehicles and energy storage devices. However, batteries may explode or catch fire during use due to overcharging, short circuits, or high temperatures, posing a serious threat to people's lives and property. Therefore, effective safety protection for batteries is crucial.

[0003] Most existing battery protective cases have simple structures and poor explosion-proof performance. They are unable to effectively block the impact force and flames generated by the explosion when the battery explodes, resulting in unsatisfactory protection. Moreover, some protective cases lack sufficient sealing and structural strength, making them prone to damage during explosions or external impacts, thus failing to provide reliable protection for the battery. Utility Model Content

[0004] This invention aims to solve the above-mentioned technical problems by providing a battery safety explosion-proof protective shell.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A battery safety explosion-proof protective shell includes an upper cover and a lower cover, with a mounting shell installed between the upper cover and the lower cover; an explosion-proof isolation device is installed inside the mounting shell; and a wire-passing hole is provided on the upper cover for wire connection.

[0007] Preferably, protective blocks are installed on the opposite surfaces of the upper and lower covers, and the protective blocks can be embedded in the mounting shell. The protective blocks can further enhance the protection of the inside of the mounting shell and improve the overall impact resistance.

[0008] Preferably, the isolation device includes a protective plate installed inside the mounting housing and located between two protective blocks. An explosion-proof plate is installed on the outside of the protective plate. The explosion-proof plate can directly withstand the impact force and flame generated by the explosion, playing a preliminary protective role. Multiple sets of honeycomb holes are opened on the protective plate. Buffer blocks are installed in the honeycomb holes. The structure of the honeycomb holes can disperse the impact force, and the buffer blocks further absorb and buffer the impact force, improving the isolation effect.

[0009] Preferably, the cross-sections of the protective plate and the explosion-proof plate are both U-shaped structures. The U-shaped structure has good structural stability and resistance to deformation, which can enhance the reliability of the protective plate and the honeycomb holes when subjected to impact forces.

[0010] Preferably, the surface of the mounting shell is provided with multiple sets of first reinforcing ribs, and each of the four corners of the mounting shell is provided with a second reinforcing rib. The first and second reinforcing ribs can effectively improve the structural strength of the mounting shell, making it less prone to deformation or damage when subjected to external forces.

[0011] Preferably, the upper cover and the lower cover are each provided with a limiting protrusion. The limiting protrusion can be installed in the gap between the first reinforcing rib and the second reinforcing rib, or between the two first reinforcing ribs. The cooperation between the limiting protrusion and the reinforcing rib can achieve precise positioning of the upper cover, the lower cover and the mounting shell, and improve the stability of the connection.

[0012] Preferably, the upper and lower covers are fixedly connected to the mounting shell by screws, which makes the connection firm and reliable and easy to disassemble and maintain; a sealing gasket is installed between the upper and lower covers and the mounting shell. The sealing gasket can enhance the sealing of the protective shell, prevent dust, moisture and other substances from entering the interior and affecting the normal operation of the battery, and at the same time can block the leakage of fragments and flames generated by the explosion to a certain extent.

[0013] Preferably, the outer side of the mounting shell is equipped with a mounting bracket for connecting to the outside. The mounting bracket facilitates the installation of the protective shell in the required position, improving the convenience of use.

[0014] With the above structure, this utility model has the following advantages:

[0015] 1. This utility model, by setting up an isolation device in which the explosion-proof plate, protective plate, honeycomb holes and buffer block cooperate with each other, can effectively buffer and isolate the impact force and flame generated when the battery explodes, greatly improving the explosion-proof performance of the protective shell.

[0016] 2. The first and second reinforcing ribs on the surface of the mounting shell enhance the structural strength of the mounting shell. The limiting protrusions between the upper and lower covers and the mounting shell, in conjunction with the reinforcing ribs, improve the stability and structural strength of the overall connection, making the protective shell less susceptible to damage when subjected to external impacts or explosive shocks.

[0017] 3. The sealing gaskets between the top and bottom covers and the mounting housing enhance the sealing performance of the protective housing, preventing dust and moisture from entering the interior, while also blocking explosive fragments and flames from leaking out, further improving the protective effect.

[0018] 4. The mounting bracket facilitates the installation of the protective case, and the wire hole makes it easy to connect the battery wires, making the use of the protective case more convenient.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of this utility model.

[0023] Figure 3 This is a schematic diagram of the installation of the isolation device of this utility model.

[0024] As shown in the figure: 1. Top cover; 2. Bottom cover; 3. Mounting shell; 301. First reinforcing rib; 302. Second reinforcing rib; 4. Isolation device; 401. Protective plate; 402. Explosion-proof plate; 403. Honeycomb holes; 5. Wiring hole; 6. Protective block; 7. Limiting protrusion; 8. Sealing gasket; 9. Mounting bracket. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present invention will now be described in further detail in conjunction with the full text.

[0028] Combined with appendix Figures 1-3A battery safety explosion-proof protective shell includes an upper cover 1 and a lower cover 2. A mounting shell 3 is installed between the upper cover 1 and the lower cover 2. The mounting shell 3 is used to accommodate the battery and an isolation device 4. An isolation device 4 for explosion protection is installed inside the mounting shell 3. The isolation device 4 can buffer and isolate the impact force and flame generated by the battery explosion. A wire hole 5 is provided on the upper cover 1 for wire connection, which facilitates the lead-out and connection of battery wires.

[0029] Protective blocks 6 are installed on the opposite sides of the upper cover 1 and the lower cover 2, and the protective blocks 6 can be embedded in the mounting shell 3. The protective blocks 6 are made of high-strength materials, which can enhance the protection of the inside of the mounting shell 3.

[0030] In specific implementation of this utility model, such as Figure 2 and Figure 3 As shown. The isolation device 4 includes a protective plate 401 installed inside the mounting housing 3 and located between two protective blocks 6. An explosion-proof plate 402 is installed on the outside of the protective plate 401. The explosion-proof plate 402 is made of a high-temperature resistant and impact-resistant material. The explosion-proof plate is made of a ceramic composite plate, which combines hardness and toughness. The ceramic layer can wear away the impact force, and the composite base layer prevents brittleness. Multiple sets of honeycomb holes 403 are opened on the protective plate 401. Buffer blocks are installed in the honeycomb holes 403. The buffer blocks are made of flame-retardant foamed silicone, which absorbs impact energy through elastic deformation and prevents the spread of flames. The oxygen index reaches 32 or higher. The cross-section of both the protective plate 401 and the explosion-proof plate 402 is a U-shaped structure, which enhances the stability of the structure.

[0031] In specific implementation of this utility model, such as Figure 1 As shown. Multiple sets of first reinforcing ribs 301 are installed on the surface of the mounting shell 3, and second reinforcing ribs 302 are installed at each of the four corners of the mounting shell 3. The first reinforcing ribs 301 and the second reinforcing ribs 302 are integrally formed with the mounting shell 3, which improves the overall strength of the mounting shell 3.

[0032] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown. Limiting protrusions 7 are installed on the opposite surfaces of the upper cover 1 and the lower cover 2. These protrusions 7 can be installed within the gaps between the first reinforcing rib 301 and the second reinforcing rib 302, or between the two first reinforcing ribs 301, to achieve precise positioning of the upper cover 1, the lower cover 2, and the mounting shell 3. The upper cover 1 and the lower cover 2 are all securely connected to the mounting shell 3 using screws. Sealing gaskets 8 are installed between the upper cover 1 and the lower cover 2 and the mounting shell 3. The sealing gaskets 8 are made of aging-resistant sealing material. The sealing gaskets can be made of fluororubber, and their cross-sectional diameter is 20-30% larger than the depth of the mounting groove.

[0033] The outer side of the mounting shell 3 is equipped with a mounting bracket 9 for connecting to the outside. The mounting bracket 9 has mounting holes to facilitate the fixing and installation of the protective shell by bolts or the like.

[0034] In practical use, the protective block is made of high-manganese steel, which utilizes its work hardening properties under impact to quickly increase surface hardness and enhance impact resistance; the explosion-proof plate is made of ceramic composite board, which balances hardness and toughness, with the ceramic layer able to wear away impact force and the composite base layer preventing brittleness; the buffer block is made of flame-retardant foamed silicone, which absorbs impact energy through elastic deformation and prevents the spread of flames, with an oxygen index of over 32; the sealing gasket is made of fluororubber, which can withstand a temperature range of -20℃ to 200℃, and does not age or crack after long-term use, ensuring long-lasting and reliable sealing performance.

[0035] The U-shaped protective plate and the honeycomb holes form a "multi-nested" mechanical buffer system, which greatly improves the impact force attenuation efficiency through three-level buffering: cavity deformation, material compression, and structural energy dissipation.

[0036] The precise fit between the limiting protrusions and the reinforcing ribs not only achieves installation positioning but also forms a "grid-like" support structure, which can distribute the force to the entire shell when subjected to lateral force, preventing excessive local deformation.

[0037] Technical effectiveness verification:

[0038] The battery safety explosion-proof protective shell of this utility model was subjected to a simulation test, and the results are as follows:

[0039] Explosion-proof performance test: In a simulated battery explosion test, this protective shell can withstand an instantaneous impact pressure of 0.8MPa. After the explosion, the shell did not break, only the isolation device underwent controllable deformation, and the fragmentation range was controlled within 0.5m, which is far lower than the 1.5-2m splash range of existing protective shells.

[0040] Structural strength verification: After drop testing, the shell was dropped freely from a height of 1.5m onto a cement ground. No structural damage was found to any of the shell components, and no loosening was observed at the joints. The reinforced structure increased the bending strength of the shell by more than 40% compared to the design without reinforced ribs.

[0041] Sealing performance test: Under a pressure difference of 10 kPa, the leakage rate is less than 0.5 kPa in 24 hours, which meets the IP65 protection level requirements and can effectively prevent rainwater and dust from entering the battery and affecting its performance.

[0042] This invention, through the synergistic optimization of materials, structure, and process, significantly improves the safety and reliability of battery protection while ensuring ease of installation, and has outstanding practical value and promising prospects for promotion.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A battery safety explosion-proof protective shell, comprising an upper cover (1) and a lower cover (2), characterized in that, An installation shell (3) is installed between the upper cover (1) and the lower cover (2); An isolation device (4) for explosion protection is installed inside the mounting housing (3); The upper cover (1) is provided with a wire hole (5) for wire connection; The isolation device (4) includes a protective plate (401) inside the mounting shell (3) and located between two protective blocks (6). An explosion-proof plate (402) is installed on the outside of the protective plate (401). Multiple sets of honeycomb holes (403) are opened on the protective plate (401), and buffer blocks are installed in the honeycomb holes (403).

2. The battery safety explosion-proof protective shell according to claim 1, characterized in that: The upper cover (1) and the lower cover (2) are fitted with protective blocks (6) on their opposite sides, and the protective blocks (6) can be embedded in the mounting shell (3).

3. The battery safety explosion-proof protective shell according to claim 2, characterized in that: The cross-sections of the protective plate (401) and the explosion-proof plate (402) are both U-shaped structures.

4. The battery safety explosion-proof protective shell according to claim 1, characterized in that: The surface of the mounting shell (3) is equipped with multiple sets of first reinforcing ribs (301), and the four corners of the mounting shell (3) are each equipped with second reinforcing ribs (302).

5. The battery safety explosion-proof protective shell according to claim 4, characterized in that: The upper cover (1) and the lower cover (2) are each equipped with a limiting protrusion (7), which can be installed in the gap between the first reinforcing rib (301) and the second reinforcing rib (302), and between the two first reinforcing ribs (301).

6. The battery safety explosion-proof protective shell according to claim 1, characterized in that: The upper cover (1) and lower cover (2) are fixedly connected to the mounting shell (3) by screws, and a sealing gasket (8) is installed between the upper cover (1) and lower cover (2) and the mounting shell (3).

7. The battery safety explosion-proof protective shell according to claim 1, characterized in that: The mounting housing (3) is fitted with an external mounting bracket (9).

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