An external power distribution fuse box

Abstract

This utility model discloses an external power distribution fuse box, relating to the field of automotive parts. The external power distribution fuse box includes a fuse box body, an outer protective cover, an inner sealing cover, and a cable sealing ring. A sealing groove is formed on the top of the fuse box body. The outer protective cover is installed on the top of the fuse box body, and the inner sealing cover is installed between the top of the fuse box body and the interior of the outer protective cover. A sealing strip is installed at the bottom of the inner sealing cover. The space between the inner sealing cover and the interior of the fuse box body forms a power distribution cavity. The cable sealing ring is installed on the outside of the fuse box body. This external power distribution fuse box, through the double sealing design of the outer protective cover and the inner sealing cover, combined with the cooperation of the sealing groove and the sealing strip, achieves waterproof and dustproof effects, effectively resisting the intrusion of rainwater and mud. The cable sealing ring is made of silicone material and has an interference fit with the cable, ensuring zero leakage at the cable connection.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an external power distribution fuse box. Background Technology

[0002] With the rapid development of the automotive industry, especially the significant increase in electrification of commercial vehicles such as light trucks, the number of onboard electrical devices has surged, placing higher demands on the performance, reliability, and safety of the entire vehicle's electrical system. As a core component of the electrical system, the power distribution fuse box must simultaneously meet the following requirements:

[0003] Waterproof and dustproof requirements: Light truck batteries are usually located on the outside of the frame and are completely exposed to complex working conditions. Rainwater, mud and sand can easily enter the traditional fuse box, causing short circuits or poor contact.

[0004] Ease of installation requirement: Existing fuse boxes are complicated to install and require the disassembly of many parts during maintenance, which increases maintenance costs.

[0005] Cable sealing requirements: The lack of effective sealing measures at cable connections makes them a major pathway for moisture and dust to enter. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an external power distribution fuse box, which solves the problem that light truck batteries are usually located on the outside of the vehicle frame and are completely exposed to complex working conditions. Rainwater, mud, and other substances can easily enter the traditional fuse box, leading to short circuits or poor contact.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an external power distribution fuse box, comprising:

[0008] The fuse box has a sealing groove on its top.

[0009] An outer protective cover is installed on the top of the safe box, and the outer protective cover provides the first step of sealing the safe box.

[0010] An inner sealing cover is installed on the top of the fuse box and inside the outer protective cover. A sealing strip is installed at the bottom of the inner sealing cover, and the sealing strip fits against the inner wall of the sealing groove. The inner sealing cover, together with the sealing strip and the sealing groove, achieves a second-stage seal for the fuse box.

[0011] A power distribution cavity is formed by the space between the inner sealing cover and the interior of the fuse box.

[0012] A cable sealing ring is installed on the outside of the fuse box, and the cable sealing ring is connected to the internal wires of the power distribution cavity.

[0013] Preferably, the sealing groove is configured as a stepped shape with a deeper outer edge and a shallower inner edge, and the sealing strip is configured as a stepped shape with a thicker outer edge and a narrower inner edge.

[0014] Preferably, a fixing block is fixedly connected to each of the four corners of the top of the safety box, and an installation block is fixedly connected to each of the four corners of the outer protective cover.

[0015] Preferably, the plurality of fixing blocks are respectively attached to the plurality of mounting blocks, and the adjacent fixing blocks and mounting blocks are fixedly connected by bolts.

[0016] Preferably, the outer side of the inner sealing cover is fitted to the inner wall of the outer protective cover.

[0017] Preferably, an installation strip is fixedly connected to the back of the fuse box, and an installation hole is provided at the top of the installation strip.

[0018] This utility model discloses an external power distribution fuse box, which has the following beneficial effects:

[0019] 1. This external power distribution fuse box features a double-seal design with an outer protective cover and an inner sealing cover, combined with sealing grooves and sealing strips, achieving waterproof and dustproof effects and effectively resisting the intrusion of rainwater and mud. The cable sealing ring is made of silicone material, with an interference fit with the cable to ensure zero leakage at the cable connection. The inner sealing cover extends into the outer protective cover, creating a larger power distribution cavity between the inner sealing cover and the fuse box. A thickened copper busbar design is used in the power distribution cavity, increasing current carrying capacity to meet the high-power electrical needs of light trucks.

[0020] 2. This external power distribution fuse box is bolted to the mounting block of the outer protective cover via a fixing block. Only four bolts are needed for disassembly and assembly, reducing maintenance time. The mounting strip has pre-drilled standard holes for direct mounting to the vehicle frame crossbeam, adapting to the narrow installation spaces of light trucks and other similar vehicles. Attached Figure Description

[0021] 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the outer protective cover of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the safety box body and inner sealing cover of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the safety box body of this utility model;

[0026] Figure 5 This is a partial schematic diagram of the inner sealing cover of this utility model;

[0027] Figure 6 This utility model Figure 4 Enlarged diagram of part A in the image.

[0028] In the diagram: 1. Fuse box; 11. Sealing groove; 12. Fixing block; 2. Outer protective cover; 21. Mounting block; 3. Inner sealing cover; 31. Sealing strip; 4. Power distribution cavity; 5. Cable sealing ring; 6. Mounting strip. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] This utility model discloses an external power distribution fuse box.

[0031] According to the appendix Figure 1-6 As shown, it includes:

[0032] The fuse box 1 has a sealing groove 11 on its top.

[0033] The outer protective cover 2 is installed on the top of the fuse box 1, and the outer protective cover 2 achieves the first step of sealing the fuse box 1;

[0034] The inner sealing cover 3 is installed on the top of the fuse box 1 and inside the outer protective cover 2. A sealing strip 31 is installed at the bottom of the inner sealing cover 3, and the sealing strip 31 fits against the inner wall of the sealing groove 11. The inner sealing cover 3, together with the sealing strip 31 and the sealing groove 11, achieves the second step of sealing the fuse box 1.

[0035] The power distribution cavity 4 is formed by the space between the inner sealing cover 3 and the inside of the fuse box 1.

[0036] The cable sealing ring 5 is installed on the outside of the fuse box 1, and the cable sealing ring 5 is connected to the internal wire of the power distribution cavity 4.

[0037] The double-sealing design of the outer protective cover 2 and the inner sealing cover 3, combined with the cooperation of the sealing groove 11 and the sealing strip 31, achieves waterproof and dustproof effects, effectively resisting the intrusion of rainwater and mud. The cable sealing ring 5 is made of silicone material and has an interference fit with the cable to ensure zero leakage at the cable connection. The inner sealing cover 3 extends into the outer protective cover 2, and a larger power distribution cavity 4 can be formed between the inner sealing cover 3 and the interior of the fuse box 1. The power distribution cavity 4 adopts a thickened copper busbar design, which improves the current carrying capacity and meets the needs of high-power electrical appliances in light trucks.

[0038] Furthermore, the sealing groove 11 is configured as a stepped shape with a deeper outer edge and a shallower inner edge, and the sealing strip 31 is configured as a stepped shape with a thicker outer edge and a narrower inner edge.

[0039] The safety box 1 and the inner sealing cover 3 are combined with the stepped fit of the sealing groove 11 and the sealing strip 31 to achieve a better sealing effect.

[0040] Furthermore, fixing blocks 12 are fixedly connected to the top four corners of the safety box 1, and mounting blocks 21 are fixedly connected to the four corners of the outer protective cover 2.

[0041] Furthermore, multiple fixing blocks 12 are respectively attached to multiple mounting blocks 21, and adjacent fixing blocks 12 and mounting blocks 21 are fixedly connected by bolts.

[0042] Furthermore, the outer side of the inner sealing cover 3 is fitted against the inner wall of the outer protective cover 2.

[0043] Furthermore, an installation strip 6 is fixedly connected to the back of the fuse box 1, and an installation hole is provided at the top of the installation strip 6.

[0044] The fuse box 1 is bolted to the mounting block 21 of the outer protective cover 2 via the fixing block 12. Only 4 bolts are needed for disassembly and assembly, reducing maintenance time. The mounting strip 6 has pre-drilled standard holes and can be directly fixed to the crossbeam of the vehicle frame, making it suitable for the narrow installation space of light trucks and other vehicle models.

[0045] The outer protective cover 2 is fixed to the fuse box 1 with bolts, forming a physical protective layer to block large particles of impurities. The sealing strip 31 of the inner sealing cover 3 is embedded in the sealing groove 11 of the fuse box 1. The stepped structure achieves multi-level barrier, so even if a small amount of moisture enters the outer protective cover 2, it will be intercepted by the inner sealing cover 3.

[0046] Power is input from the battery into the fuse box 1, and distributed to each circuit branch via copper busbars. The power distribution cavity 4 is independent of the sealing structure to avoid the impact of high temperatures on the sealing material. Cables pass through the cable sealing ring 5 into the power distribution cavity 4. The cable sealing ring 5 deforms under pressure to fill the gaps between the cables, forming a dynamic seal. The mounting strip 6 is fixed to the frame with bolts. A vibration buffer gap is reserved between the fuse box 1 and the frame to adapt to the complex road conditions of light trucks.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An external power distribution fuse box, characterized in that, include: The top of the insurance box (1) is provided with a sealing groove (11). An outer protective cover (2) is installed on the top of the safe box (1), and the outer protective cover (2) performs the first step of sealing the safe box (1); An inner sealing cover (3) is installed on the top of the safe box (1) and inside the outer protective cover (2). A sealing strip (31) is installed at the bottom of the inner sealing cover (3), and the sealing strip (31) fits against the inner wall of the sealing groove (11). The inner sealing cover (3) works with the sealing strip (31) and the sealing groove (11) to achieve a second-step sealing of the safe box (1). The power distribution cavity (4) is formed by the space between the inner sealing cover (3) and the fuse box (1). A cable sealing ring (5) is installed on the outside of the fuse box (1), and the cable sealing ring (5) is connected to the internal wire of the power distribution cavity (4).

2. The external power distribution fuse box according to claim 1, characterized in that, The sealing groove (11) is set in a stepped shape with a deeper outer edge and a shallower inner edge, and the sealing strip (31) is set in a stepped shape with a thicker outer edge and a narrower inner edge.

3. The external power distribution fuse box according to claim 1, characterized in that, The top four corners of the safety box (1) are fixedly connected with fixing blocks (12), and the four corners of the outer protective cover (2) are fixedly connected with mounting blocks (21).

4. An external power distribution fuse box according to claim 3, characterized in that, The multiple fixing blocks (12) are respectively attached to the multiple mounting blocks (21), and the adjacent fixing blocks (12) and mounting blocks (21) are fixedly connected by bolts.

5. An external power distribution fuse box according to claim 1, characterized in that, The outer side of the inner sealing cover (3) is in contact with the inner wall of the outer protective cover (2).

6. An external power distribution fuse box according to claim 1, characterized in that, The back of the safety box (1) is fixedly connected to an installation strip (6), and the top of the installation strip (6) is provided with an installation hole.

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