Sealed fuse box with breathable film

Abstract

The utility model relates to the technical field of automobile wire harness production and manufacturing, and discloses a sealed fuse box with a breathable film, which comprises a fuse box body, a front cover body arranged at the top of the fuse box body, and a rear shell body arranged at the bottom of the fuse box body, according to the utility model, the front cover body and the fuse box body can be conveniently connected through the arrangement of the connecting mechanism, and the front cover body, the sealing ring and the sealing cavity are matched for use, so that the sealing problem of the main body can be conveniently solved; by installing the waterproof terminal and the sealing plug at the sealing terminal cavity and adding the breathable film at the breathable film hole, the problem of relay heating temperature difference caused by internal and external temperature difference can be conveniently solved, the purpose that the fuse box body is breathable and waterproof is achieved, and the reliability requirement of a wiring harness is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness manufacturing technology, specifically a sealed fuse box with a built-in breathable membrane. Background Technology

[0002] Automotive wiring harnesses run throughout the entire vehicle and form the main network of the vehicle's electrical system. They connect various electrical devices in the vehicle and are responsible for transmitting power, signals, and data. The reliability and stability of wiring harnesses in commercial vehicles are crucial for the normal operation of the vehicle. Among them, the fuse box is the most important, and how reliably the circuit operates is of paramount importance.

[0003] OEMs design wiring harnesses for different locations based on customer needs, and the design requirements for fuse boxes also vary depending on their placement. To ensure the reliability of wiring harness power distribution, a sealed fuse box with a built-in breathable membrane is needed to address issues such as wiring harness reliability and relay overheating in a sealed environment. Existing fuse boxes typically connect the two directly with bolts, without a sealing device between the upper cover and the lower box. In harsh operating environments, dust or rainwater can enter the fuse box, damaging the fuse components or affecting their accurate fusing performance. Utility Model Content

[0004] The purpose of this invention is to provide a sealed safe box with a built-in breathable membrane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealed safe box with a built-in breathable membrane, comprising a safe box body, and further comprising:

[0006] A front cover body is provided on the top of the safe box body, and a rear shell body is provided at the bottom of the safe box body;

[0007] The safe box body has a protrusion fixed to its inner wall, a breathable membrane hole in its inner wall, a connecting mechanism to facilitate connection between the front cover and the main body, a sealing terminal cavity in its inner wall, a round hole in its inner wall, a sealing ring in its inner wall, and a sealing cavity in its inner wall.

[0008] Preferably, the connecting mechanism includes two sets of mounting blocks fixed to the inner wall of the fuse box body, each set of mounting blocks having threaded holes on its inner wall and a limit block on its top.

[0009] Preferably, two sets of fixing blocks are fixed on the outer side of the front cover body, and the inner walls of the two sets of fixing blocks are provided with first fixing holes.

[0010] Preferably, the inner wall of the safe box body is provided with a second fixing hole and a third fixing hole, and the number of the second fixing hole and the third fixing hole is two sets.

[0011] Preferably, the outer side of the safe box body is provided with four sets of sliding grooves, and the inner wall of each of the four sets of sliding grooves is fixed with a boss.

[0012] Preferably, four sets of limiting frames are provided on the outer side of the rear shell body, and the inner walls of the four sets of limiting frames are all fixed with buckles.

[0013] Preferably, a horizontally arranged connecting pipe is fixed on one side of the rear shell body, and a corrugated pipe groove is formed on the inner wall of the connecting pipe.

[0014] Preferably, the outer side of the rear shell body is provided with two sets of keyways, and the inner wall of the rear shell body is provided with a wire harness cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model facilitates the connection between the front cover body and the fuse box body by setting a connecting mechanism. By setting the front cover body, sealing ring and sealing cavity in combination, the sealing problem of the main body can be easily solved. By installing waterproof terminals and sealing plugs at the sealing terminal cavity and adding a breathable membrane at the breathable membrane hole, the problem of relay heating temperature difference caused by internal and external temperature difference can be easily solved. The purpose of the fuse box body is to be breathable but not waterproof, thus ensuring the reliability requirements of the wiring harness. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the sealed safe box with a built-in breathable membrane provided by this utility model;

[0018] Figure 2 A schematic diagram of the connection mechanism provided by this utility model;

[0019] Figure 3 A schematic diagram of the fuse box body structure provided by this utility model;

[0020] Figure 4 A schematic diagram of the front cover body structure provided by this utility model;

[0021] Figure 5 A schematic diagram of the sealing cavity structure provided by this utility model;

[0022] Figure 6 A schematic diagram of the rear shell body structure provided by this utility model.

[0023] In the diagram: 1. Fuse box body; 2. Front cover body; 3. Rear shell body; 4. Protrusion; 5. Vent membrane hole; 6. Connecting mechanism; 61. Mounting block; 62. Threaded hole; 63. Limiting block; 7. Sealing terminal cavity; 8. Round hole; 9. Sealing ring; 10. Sealing cavity; 11. Fixing block; 12. First fixing hole; 13. Second fixing hole; 14. Third fixing hole; 15. Sliding groove; 16. Boss; 17. Limiting frame; 18. Buckle; 19. Connecting pipe; 20. Corrugated pipe groove; 21. Keyway; 22. Wire harness cavity. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 As shown, a sealed fuse box with a built-in breathable membrane includes a fuse box body 1, which facilitates the protection of automotive wiring harnesses. A front cover body 2 is located at the top of the fuse box body 1, which helps to ensure the sealing of the wiring harness. A rear shell body 3 is located at the bottom of the fuse box body 1, which helps to protect the wires and determine the direction of the wiring harness exit. A protrusion 4 is fixed to the inner wall of the fuse box body 1, which helps to limit the front cover body 2 and prevent it from shifting during installation. Breathable membrane holes 5 are provided on the inner wall of the fuse box body 1. Hole 5 facilitates the solution of relay overheating temperature difference problem. The inner wall of fuse box body 1 is provided with a connection mechanism 6 to facilitate the connection between front cover body 2 and main body. The inner wall of fuse box body 1 is provided with a sealing terminal cavity 7. By providing the sealing terminal cavity 7, it is easy to insert waterproof terminals and sealing plugs. The inner wall of fuse box body 1 is provided with a round hole 8. By providing the round hole 8, it is easy to install front cover body 2. The inner wall of front cover body 2 is provided with a sealing ring 9. By providing the sealing ring 9, it is easy to seal the connection between front cover body 2 and fuse box body 1. The inner wall of front cover body 2 is provided with a sealing cavity 10. By providing the sealing cavity 10, it is easy to seal the automotive wiring harness.

[0026] The connecting mechanism 6 includes two sets of mounting blocks 61 fixed to the inner wall of the fuse box body 1. The inner walls of the two sets of mounting blocks 61 are provided with threaded holes 62. By setting the mounting blocks 61 to cooperate with the threaded holes 62, the front cover body 2 and the fuse box body 1 can be installed easily. The top of the two sets of mounting blocks 61 is provided with a limit block 63. By setting the limit block 63, the front cover body 2 can be limited.

[0027] Two sets of fixing blocks 11 are fixed to the outer side of the front cover body 2. The inner walls of the two sets of fixing blocks 11 are provided with first fixing holes 12. By setting the fixing blocks 11 and the first fixing holes 12 to cooperate, the front cover body 2 and the fuse box body 1 can be easily connected by the connecting mechanism 6. The inner walls of the fuse box body 1 are provided with second fixing holes 13 and third fixing holes 14 respectively. There are two sets of second fixing holes 13 and third fixing holes 14. By setting the second fixing holes 13 and third fixing holes 14, the fuse box body 1 can be easily fixed to the frame bracket. The outer side of the fuse box body 1 is provided with four sets of sliding grooves 15. By setting the sliding grooves 15, the buckles 18 can be easily limited. The inner walls of the four sets of sliding grooves 15 are all fixed with bosses 16. By setting the bosses 16, the buckles 18 can be easily engaged, thereby engaging the rear cover body 3 and the fuse box body 1.

[0028] Four sets of limiting frames 17 are provided on the outer side of the rear housing body 3. By setting the limiting frames 17, the fuse box body 1 can be easily limited. The inner walls of the four sets of limiting frames 17 are all fixed with buckles 18. By setting the buckles 18, the rear housing body 3 can be easily snapped into the fuse box body 1. A horizontally arranged connecting tube 19 is fixed on one side of the rear housing body 3. The inner wall of the connecting tube 19 has a corrugated tube slot 20. When the connecting tube 19 and the corrugated tube slot 20 are used together, it can be used for the corrugated tube of the wiring harness covering. Two sets of keyways 21 are provided on the outer side of the rear housing body 3. By setting the keyways 21, it can be used to prevent errors during installation. The inner wall of the rear housing body 3 has a wire harness cavity 22. By setting the wire harness cavity 22, it can be used to facilitate the placement of the automotive wiring harness.

[0029] Working principle: In use, firstly, the waterproof terminal and sealing plug are inserted into the sealed terminal cavity 7 inside the fuse box body 1. Then, the front cover body 2 is placed on top of the fuse box body 1, and the first fixing hole 12 is inserted into the limiting block 63. Then, the fixing bolt is screwed into the threaded hole 62, thereby installing the front cover body 2 on top of the fuse box body 1. The front cover body 2 and the fuse box body 1 together form a sealed cavity 10, which is sealed by the sealing ring 9. The fuse box body 1 has a built-in vent membrane hole 5, and a polymer vent membrane is adapted to the vent membrane hole 5 for the internal and external heat transfer of the sealed cavity 10. The process involves exchanging parts, inserting the buckle 18 into the slide groove 15, and securing the buckle 18 with the boss 16. The keyway 21 prevents misalignment of the rear housing body 3 during installation, thus completing the installation of the rear housing body 3 at the bottom of the fuse box body 1. The rear housing body 3 and the fuse box body 1 combine to form a wire harness cavity 22. Then, the rear fuse box body 1 is fixed to the vehicle frame bracket using fixing bolts, the second fixing hole 13, and the third fixing hole 14. Finally, the automotive wire harness is passed through the connecting tube 19 and secured with the wire harness through the corrugated tube slot 20 to prevent the wire harness from detaching, thereby improving the practicality of the structure.

[0030] 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.

[0031] 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 sealed safe box with a built-in breathable membrane, comprising a safe box body (1), characterized in that, Also includes: A front cover body (2) is provided on the top of the safe box body (1), and a rear shell body (3) is provided at the bottom of the safe box body (1); A protrusion (4) is fixed to the inner wall of the fuse box body (1). The inner wall of the fuse box body (1) is provided with a breathable membrane hole (5). The inner wall of the fuse box body (1) is provided with a connecting mechanism (6) to facilitate the connection between the front cover body (2) and the main body. The inner wall of the fuse box body (1) is provided with a sealing terminal cavity (7). The inner wall of the fuse box body (1) is provided with a round hole (8). The inner wall of the front cover body (2) is provided with a sealing ring (9). The inner wall of the front cover body (2) is provided with a sealing cavity (10).

2. The sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: The connecting mechanism (6) includes two sets of mounting blocks (61) fixed to the inner wall of the fuse box body (1). The inner walls of the two sets of mounting blocks (61) are provided with threaded holes (62), and the tops of the two sets of mounting blocks (61) are provided with limit blocks (63).

3. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: Two sets of fixing blocks (11) are fixed on the outer side of the front cover body (2), and the inner walls of the two sets of fixing blocks (11) are provided with first fixing holes (12).

4. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: The inner wall of the safe box body (1) is provided with a second fixing hole (13) and a third fixing hole (14), and the number of the second fixing hole (13) and the third fixing hole (14) is two sets.

5. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: The outer side of the safe box body (1) is provided with four sets of sliding grooves (15), and the inner wall of each of the four sets of sliding grooves (15) is fixed with a boss (16).

6. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: The outer side of the rear shell body (3) is provided with four sets of limiting frames (17), and the inner walls of the four sets of limiting frames (17) are all fixed with buckles (18).

7. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: A horizontally arranged connecting pipe (19) is fixed on one side of the rear shell body (3), and a corrugated pipe groove (20) is provided on the inner wall of the connecting pipe (19).

8. A sealed safe box with a built-in breathable membrane according to claim 1, characterized in that: Two sets of keyways (21) are provided on the outer side of the rear shell body (3), and a wire harness cavity (22) is provided on the inner wall of the rear shell body (3).

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