A high protection grade fuse box

CN224773873UActive Publication Date: 2026-09-18ZHEJIANG ZHONGZHI AUTOMOBILE ELECTRIC CO LTD
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Patent Information

Application Number
CN202521881275.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-09-18
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种高防护等级的保险丝盒,其能够解决保险丝盒存在密封性不足和抗震性差的问题

Benefits of technology

[0015] Compared with the prior art, this utility model assembles the sealing protective cover, the functional protective box, and the shock-resistant load-bearing box into a fuse box by snap-fitting, making the fuse box easy to assemble. Furthermore, the sealing performance of the fuse box is improved by the sealing effect of the labyrinth structure and the stepped labyrinth structure, preventing moisture and dust from entering the fuse box. At the same time, the shock resistance of the fuse box is improved by the buffering effect of the buffer mesh, avoiding poor fuse contact caused by vibration.

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Abstract

This utility model discloses a high-protection-level fuse box, including a main body and a sealing mechanism. The main body includes a sealing protective cover, a functional protective box, and a shock-resistant bearing box. The sealing protective cover is installed at the upper end of the functional protective box, and the shock-resistant bearing box is installed at the lower end of the functional protective box. A fuse is installed inside the functional protective box, and a buffer component is provided at the bottom of the shock-resistant bearing box. The sealing mechanism includes a first connecting component, a second connecting component, and a sealing component. This utility model assembles the sealing protective cover, functional protective box, and shock-resistant bearing box into a fuse box by snap-fitting, making fuse box assembly convenient. Furthermore, the sealing performance of the fuse box is improved by the sealing effect of the labyrinth structure and the stepped labyrinth structure, preventing moisture and dust from entering the fuse box. The buffer mesh further enhances the shock resistance of the fuse box, avoiding poor fuse contact caused by vibration.
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Description

Technical Field

[0001] This utility model belongs to the field of fuse box protection technology, specifically relating to a fuse box with a high protection level. Background Technology

[0002] The core function of a fuse box is to protect the electrical system, preventing equipment damage or fire risks caused by overload or short circuits through a melting mechanism, while also providing circuit management functions. Traditional fuse boxes have the following problems when in use: insufficient sealing, allowing moisture and dust to easily enter and cause short circuits; poor shock resistance, with external environmental factors such as vehicles causing vibrations in the fuse box, which can easily lead to poor fuse contact.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a high-protection-level fuse box that can solve the problems of insufficient sealing and poor shock resistance of existing fuse boxes.

[0005] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows: A high-protection-level fuse box includes a main body and a sealing mechanism. The main body includes a sealing protective cover, a functional protective box, and a shock-resistant load-bearing box. The sealing protective cover is installed at the upper end of the functional protective box, and the shock-resistant load-bearing box is installed at the lower end of the functional protective box. A fuse is installed inside the functional protective box, and a buffer component is provided at the bottom of the shock-resistant load-bearing box. The sealing mechanism includes a first connecting component, a second connecting component, and a sealing component. The first connecting component is disposed between the sealing protective cover and the functional protective box, the second connecting component is disposed between the functional protective box and the shock-resistant load-bearing box, and the sealing component is disposed at the connection between the sealing protective cover and the functional protective box and the shock-resistant load-bearing box.

[0006] In one or more embodiments of this utility model, a plurality of mounting seats are integrally formed on the side wall of the seismic bearing box, and each of the plurality of mounting seats is provided with mounting holes. A conduit is installed on one side of the seismic bearing box.

[0007] In one or more embodiments of the present invention, the buffer assembly includes a plurality of buffer ribs integrally formed on the bottom of the seismic bearing box, and the plurality of buffer ribs are arranged in a crisscross pattern.

[0008] In one or more embodiments of this utility model, the plurality of buffer ribs are arranged in a manner where the thickness gradually narrows from one end near the seismic bearing box to the end away from the seismic bearing box.

[0009] In one or more embodiments of this utility model, micro-expansion holes are provided at the intersection of the plurality of buffer ribs, and the diameter of the micro-expansion holes is set to 0.4~0.6mm.

[0010] In one or more embodiments of this utility model, a functional isolation plate is fixedly connected inside the functional protection box, and the fuse is installed on the functional isolation plate.

[0011] In one or more embodiments of the present invention, the first connecting assembly includes a pair of mounting plates fixedly connected to opposite sidewalls of the sealing protective cover, a pair of elastic buckles installed in the pair of mounting plates, and a pair of first snap-fit ​​members fixedly connected to opposite sidewalls of the functional protective box, with the pair of elastic buckles respectively snapped into the pair of first snap-fit ​​members.

[0012] In one or more embodiments of the present invention, the second connecting component includes a plurality of rotating buckles that are hingedly mounted on the outer wall of the seismic bearing box, and a plurality of second snap-fit ​​members that are fixedly connected to the outer wall of the functional protective box, wherein the plurality of rotating buckles are respectively snapped onto the plurality of second snap-fit ​​members.

[0013] In one or more embodiments of the present invention, the sealing assembly includes a U-shaped sleeve plate integrally formed on the lower end of the sealing protective cover, a limiting plate integrally formed on the side wall of the functional protective box, and a mounting plate integrally formed on the upper side wall of the seismic bearing box.

[0014] In one or more embodiments of this utility model, the U-shaped socket plate and the limiting plate are interlocked to form a maze structure, and the limiting plate and the mounting plate are interlocked to form a stepped maze structure.

[0015] Compared with the prior art, this utility model assembles the sealing protective cover, the functional protective box, and the shock-resistant load-bearing box into a fuse box by snap-fitting, making the fuse box easy to assemble. Furthermore, the sealing performance of the fuse box is improved by the sealing effect of the labyrinth structure and the stepped labyrinth structure, preventing moisture and dust from entering the fuse box. At the same time, the shock resistance of the fuse box is improved by the buffering effect of the buffer mesh, avoiding poor fuse contact caused by vibration. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a high-protection-level fuse box according to one embodiment of the present invention; Figure 2 This invention provides a three-dimensional representation of a high-protection-level fuse box according to one embodiment of the present invention. Figure 1 ; Figure 3 This invention provides a three-dimensional representation of a high-protection-level fuse box according to one embodiment of the present invention. Figure 2 ; Figure 4 This is a cross-sectional view of a high-protection-level fuse box according to one embodiment of the present invention; Figure 5 This utility model Figure 3 A schematic diagram at point A in the middle; Figure 6 This utility model Figure 4 A schematic diagram at point B in the middle.

[0018] Explanation of key figure labels: 1-Main body structure, 11-Sealed protective cover, 12-Functional protective box, 13-Seismic bearing box, 14-Mounting base, 15-Conduit, 16-Buffer rib, 17-Miniature expansion hole, 18-Fuse, 19-Functional isolation plate, 2-Sealing mechanism, 21-Mounting plate, 22-Elastic buckle, 23-First snap-fit, 24-Rotating buckle, 25-Second snap-fit, 26-U-shaped socket plate, 27-Limiting plate, 28-Mounting plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0020] like Figures 1-4As shown, a high-protection-level fuse box according to one embodiment of the present invention includes a main body 1 and a sealing mechanism 2. The main body 1 includes a sealing protective cover 11, a functional protective box 12, and a shock-resistant bearing box 13. The sealing protective cover 11 is installed at the upper end of the functional protective box 12, and the shock-resistant bearing box 13 is installed at the lower end of the functional protective box 12. A fuse 18 is installed inside the functional protective box 12, and a buffer component is provided at the bottom of the shock-resistant bearing box 13. The sealing mechanism 2 includes a first connecting component, a second connecting component, and a sealing component. The first connecting component is disposed between the sealing protective cover 11 and the functional protective box 12, the second connecting component is disposed between the functional protective box 12 and the shock-resistant bearing box 13, and the sealing component is disposed at the connection between the sealing protective cover 11 and the functional protective box 12 and between the functional protective box 12 and the shock-resistant bearing box 13.

[0021] During assembly of this high-protection-level fuse box, fuse 18 is installed inside the functional protection box 12, achieving partitioning and safety isolation of fuse 18 within the functional protection box 12. Then, the functional protection box 12 with fuse 18 installed is installed onto the seismic bearing box 13 via a second connecting component, ensuring the stability of the structure where the functional protection box 12 is installed on the seismic bearing box 13. Furthermore, the sealing component ensures a tight seal at the connection between the functional protection box 12 and the seismic bearing box 13, preventing external moisture and dust from entering. Finally, the sealing cover 11 is installed onto the functional protection box 12 via a first connecting component, ensuring the stability of the structure where the sealing cover 11 is installed on the functional protection box 12. Again, the sealing component ensures a tight seal at the connection between the sealing cover 11 and the functional protection box 12, preventing external moisture and dust from entering. Assemble the sealing cover 11, the functional protection box 12, and the shock-resistant bearing box 13 together to complete the assembly of the fuse box. Then, install the fuse box on the mounting surface of a vehicle or other vehicle through the shock-resistant bearing box 13. When the external environment of the vehicle or other vehicle vibrates, the buffer component can effectively buffer the vibration, greatly improving the shock resistance of the fuse box and avoiding poor fuse contact caused by vibration.

[0022] like Figures 1-3 As shown, multiple mounting seats 14 are integrally formed on the side wall of the seismic bearing box 13. Each mounting seat 14 has mounting holes, through which the fuse box can be fixed to the required installation location such as a vehicle. A conduit 15 is installed on one side of the seismic bearing box 13 for routing wires from inside to outside the fuse box.

[0023] like Figure 3 and Figure 5As shown, the buffer assembly includes multiple buffer ribs 16 integrally formed on the bottom of the seismic bearing box 13. The multiple buffer ribs 16 are arranged in a crisscross manner so that after the fuse box is installed by the mounting base 14, it contacts the mounting surface through the multiple buffer ribs 16.

[0024] like Figure 3 and Figure 5 As shown, multiple buffer ribs 16 are arranged with a gradually narrowing thickness from one end near the seismic bearing box 13 to the other end away from the seismic bearing box 13. By gradually narrowing the thickness of the buffer ribs 16, the thermal stress of the fuse box is released by the buffer ribs 16.

[0025] like Figure 3 and Figure 5 As shown, micro-expansion holes 17 are provided at the intersections of multiple buffer ribs 16, with the diameter of the micro-expansion holes 17 set to 0.4~0.6mm. The micro-expansion holes 17 can solve the problems of thermal stress deformation and vibration fatigue fracture. The micro-expansion holes 17 act as stress relief channels, causing the buffer ribs 16 to shrink into the holes when they deform thermally. When the fuse box is subjected to vibration, the micro-expansion holes 17 cut off the vibration wave transmission path, converting the resonance energy into micro-deformation of the hole wall. In addition, in conjunction with the gradually changing thickness design of the buffer ribs 16, the vibration energy is further dispersed, improving the shock resistance of the fuse box.

[0026] like Figure 4 and Figure 6 As shown, a functional isolation plate 19 is fixedly connected inside the functional protection box 12, and a fuse 18 is installed on the functional isolation plate 19. By installing the fuse 18 through the functional isolation plate 19, the functional protection box 12 is partitioned and safely isolated from the fuse 18.

[0027] like Figures 1-3 As shown, the first connecting assembly includes a pair of mounting plates 21 fixedly connected to the opposite sidewalls of the sealing protective cover 11. A pair of elastic clips 22 are installed within the pair of mounting plates 21. A pair of first snap-fit ​​members 23 are fixedly connected to the opposite sidewalls of the functional protective box 12, and the pair of elastic clips 22 are respectively snapped into the pair of first snap-fit ​​members 23. Through the cooperation of the elastic clips 22 and the first snap-fit ​​members 23, the sealing protective cover 11 and the functional protective box 12 are stably installed and easily disassembled.

[0028] like Figures 1-3 As shown, the second connecting assembly includes multiple rotating buckles 24 hinged to the outer wall of the seismic bearing box 13, and multiple second snap-fit ​​pieces 25 fixedly connected to the outer wall of the functional protective box 12. The multiple rotating buckles 24 are respectively snapped onto the multiple second snap-fit ​​pieces 25. Through the cooperation of the rotating buckles 24 and the second snap-fit ​​pieces 25, the installation between the functional protective box 12 and the seismic bearing box 13 is stable and easy to assemble and disassemble.

[0029] like Figure 4 and Figure 6 As shown, the sealing assembly includes a U-shaped sleeve plate 26 integrally formed on the lower end of the sealing protective cover 11, a limiting plate 27 integrally formed on the side wall of the functional protective box 12, and an mounting plate 28 integrally formed on the upper side wall of the seismic bearing box 13.

[0030] like Figure 4 and Figure 6 As shown, the U-shaped socket plate 26 and the limiting plate 27 are interlocked to form a maze structure, and the limiting plate 27 and the mounting plate 28 are interlocked to form a stepped maze structure. Through the maze structure and the stepped maze structure, the connections between the sealing cover 11 and the functional protection box 12, as well as between the functional protection box 12 and the seismic bearing box 13, are tightly sealed, effectively preventing external moisture and dust from entering the fuse box.

[0031] In use, the fuse 18 is installed inside the functional protection box 12 via the functional isolation plate 19. The functional isolation plate 19 enables partitioning and safety isolation of the fuse 18 within the functional protection box 12. Then, the functional protection box 12 is installed onto the seismic bearing box 13 via the second connecting assembly. The stability of the structure of the functional protection box 12 installed on the seismic bearing box 13 is ensured by the cooperation of the rotating buckle 24 and the second locking member 25. Furthermore, the sealing effect of the stepped labyrinth structure formed by the limiting plate 27 and the mounting plate 28 ensures... The connection between the functional protective box 12 and the shock-resistant bearing box 13 is tightly sealed to prevent external moisture and dust from entering. Then, the sealing protective cover 11 is installed on the functional protective box 12 via the first connecting assembly. The elastic buckle 22 and the first snap-fit ​​member 23 ensure the stability of the structure where the sealing protective cover 11 is installed on the functional protective box 12. Furthermore, the labyrinth structure formed by the U-shaped sleeve plate 26 and the limiting plate 27 provides a tight seal at the connection between the sealing protective cover 11 and the functional protective box 12, preventing external moisture and dust from entering. Assembling the sealing protective cover 11, the functional protective box 12, and the shock-resistant bearing box 13 completes the assembly of the fuse box. The fuse box is then installed on a mounting surface such as a vehicle using the shock-resistant bearing box 13. When the external environment vibrates, the buffer mesh composed of the buffer ribs 16 effectively buffers the vibration, greatly improving the shock resistance of the fuse box and preventing poor fuse contact caused by vibration.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high protection level fuse box, characterized in that, include: The main body includes a sealed protective cover, a functional protective box, and a seismic bearing box. The sealed protective cover is installed at the upper end of the functional protective box, and the seismic bearing box is installed at the lower end of the functional protective box. A fuse is installed inside the functional protective box, and a buffer component is provided at the bottom of the seismic bearing box. The sealing mechanism includes a first connecting component, a second connecting component, and a sealing component. The first connecting component is disposed between the sealing protective cover and the functional protective box. The second connecting component is disposed between the functional protective box and the seismic bearing box. The sealing component is disposed at the connection between the sealing protective cover and the functional protective box, and between the functional protective box and the seismic bearing box.

2. A high-protection-level fuse box according to claim 1, characterized in that, The seismic bearing box has multiple mounting seats integrally formed on its side wall, and each mounting seat has a mounting hole. A conduit is installed on one side of the seismic bearing box.

3. A high protection level fuse box according to claim 2, characterized in that, The buffer assembly includes multiple buffer ribs integrally formed on the bottom of the seismic bearing box, and the multiple buffer ribs are arranged in a crisscross pattern.

4. A high protection level fuse box according to claim 3, characterized in that, The multiple buffer ribs are arranged with a gradually narrowing thickness from one end near the seismic bearing box to the other end away from the seismic bearing box.

5. A high protection level fuse box according to claim 4, characterized in that, Micro-expansion holes are provided at the intersection of multiple buffer ribs, and the diameter of the micro-expansion holes is set to 0.4~0.6mm.

6. A high protection level fuse box according to claim 1, characterized in that, A functional isolation plate is fixedly connected inside the functional protection box, and the fuse is installed on the functional isolation plate.

7. A high protection level fuse box according to claim 1, characterized in that, The first connecting assembly includes a pair of mounting plates fixedly connected to the opposite sidewalls of the sealing protective cover, a pair of elastic buckles installed in the pair of mounting plates, and a pair of first snap-fit ​​members fixedly connected to the opposite sidewalls of the functional protective box, with the pair of elastic buckles snapped into the pair of first snap-fit ​​members respectively.

8. A high protection level fuse box according to claim 7, characterized in that, The second connecting assembly includes a plurality of rotating buckles that are hingedly mounted on the outer wall of the seismic bearing box, and a plurality of second snap-fit ​​members that are fixedly connected to the outer wall of the functional protective box, wherein the plurality of rotating buckles are respectively snapped onto the plurality of second snap-fit ​​members.

9. A high-protection-level fuse box according to claim 1, characterized in that, The sealing assembly includes a U-shaped sleeve plate integrally formed on the lower end of the sealing protective cover, a limiting plate integrally formed on the side wall of the functional protective box, and an mounting plate integrally formed on the upper side wall of the seismic bearing box.

10. A high protection level fuse box according to claim 9, characterized in that, The U-shaped connecting plate and the limiting plate are interlocked to form a maze structure, and the limiting plate and the mounting plate are interlocked to form a stepped maze structure.