CN218939585U

CN218939585U - High protection level's low voltage fuse box

Info

Publication number: CN218939585U
Application number: CN202223454198.XU
Authority: CN
Inventors: 张建伟; 张永威; 刘凤军; 祁顶春; 范存建; 彭娜; 张晓军; 李昕奇
Original assignee: Henan THB Electric Co Ltd
Current assignee: Henan THB Electric Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-28
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a high-protection-level low-voltage fuse box, which comprises an upper cover and a main body assembly, wherein the upper cover is detachably connected with the main body assembly, and a sealing ring capable of realizing end face sealing and side face sealing simultaneously is arranged between the upper cover and the main body assembly; a valve structure for improving the tightness is arranged on the sealing ring; the main body assembly is provided with a wire harness outlet, the wire harness outlet is spliced and matched with a wire harness, and the wire harness is provided with a sealing plug matched with the wire harness outlet. The sealing ring is designed in a valve type, the section of the sealing ring is L-shaped, one sealing ring can realize end face sealing and side face sealing at the same time, the valve structure is more beneficial to the installation of the upper cover and the improvement of the sealing performance of the joint, the protection grade of the fuse box is greatly improved, and the protection requirement of IP67 and above grade is met. The waterproof type waterproof device solves the technical problem that the existing waterproof type cannot meet the protection requirements of IP67 and above.

Description

High protection level's low voltage fuse box

Technical Field

The utility model relates to the technical field of automobile fuse boxes, in particular to a low-voltage fuse box with high protection level.

Background

In order to meet the requirement of automobiles on higher and higher protection levels of fuse boxes, in order to cope with the harsher installation environment of the fuse boxes, a host factory requires the fuse boxes installed on a chassis or other easily-involved positions of a vehicle to at least meet the protection requirement of IP67 level.

At present, a U-shaped groove is generally designed on an upper cover or a main body of the fuse box, a sealing ring is installed in the groove, the cross section of the sealing ring is generally rectangular, the end face between the upper cover and the main body is waterproof by means of the pressing force between the upper cover and the main body, but the waterproof mode can only meet the protection requirements of IP55 and below at most, and the waterproof mode cannot temporarily meet the requirements of a host factory on higher requirements.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a low-voltage fuse box with high protection level, which solves the technical problem that the existing waterproof form cannot meet the protection requirement of IP67 and above.

The technical scheme of the utility model is realized as follows: the utility model provides a high protection level's low pressure fuse box, includes upper cover and main part assembly, the upper cover can be dismantled with the main part assembly and be connected, be equipped with the sealing washer that can realize terminal surface seal and side seal simultaneously between upper cover and the main part assembly, be equipped with the pencil outlet on the main part assembly.

The sealing ring is provided with a valve structure, and the valve structure is a structure which can effectively prevent water from leaking in from the outside like a heart valve or a blood vessel valve. At least two valve structures are arranged on the outer surface of the sealing ring, and the valve structures are uniformly distributed on the outer surface of the sealing ring. The sealing ring is a sealing ring with a central symmetrical joint, and the section of the sealing ring is L-shaped.

The wire harness outlet is spliced and matched with the wire harness, and a sealing plug matched with the wire harness outlet is arranged on the wire harness. The main body assembly comprises a main body hanging structure and a main body, wherein a wire harness outlet is arranged on the main body, the wire harness outlet is a circular outlet, and cylindrical sealing plugs are arranged at the circular outlet.

The main part bottom is equipped with the cardboard, is equipped with the round hole with pencil outlet one-to-one on the cardboard, and cardboard both ends have respectively with the main part articulates. The diameter of the round hole is matched with the wire harness and smaller than that of the cylindrical sealing plug.

The upper cover is provided with an upper cover elastic hanging structure, the main body is provided with a main body hanging structure corresponding to the upper cover elastic hanging structure, and the upper cover elastic hanging structure is clamped with the main body hanging structure. The main body is provided with a boss.

The sealing ring is designed in a valve type, the section of the sealing ring is L-shaped, one sealing ring can realize end face sealing and side face sealing at the same time, the effect of the two sealing rings is equivalent, the multi-layer valve structure is more beneficial to the installation of the upper cover and the improvement of the sealing performance of the joint, the sealing ring is designed into a central symmetrical structure to prevent waterproof failure caused by the installation error of the sealing ring, in addition, all wire harness terminal outlets are designed into circles, the sealing of the outlets can be realized by directly adopting the circular sealing plug, and meanwhile, a clamping plate for preventing the sealing plug from falling is also designed for preventing the sealing plug from falling off, so that the protection grade of the fuse box is greatly improved, and the protection requirement of IP67 and above grade is met. The waterproof type waterproof device solves the technical problem that the existing waterproof type cannot meet the protection requirements of IP67 and above.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a schematic connection diagram of the elastic hanging structure of the upper cover and the main body hanging structure of the present utility model.

In the figure, 1 upper cover, 2 main body assemblies, 3 cardboard, 4 pencil, 5 sealing washer, 6 terminal, 7 sealing plugs, 8 valve structures, 9 upper cover elasticity articulates the structure, 10 main body articulates the structure, 11 main bodies, 12 boss, 13 pencil outlet, 14 dog.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, embodiment 1, a high protection class low voltage fuse box, comprising an upper cover 1 and a main body assembly 2, wherein the upper cover 1 is detachably linked with the main body assembly 2, and a sealing ring 5 capable of realizing end face sealing and side face sealing simultaneously is arranged between the upper cover 1 and the main body assembly 2; a valve structure 8 for improving the tightness is arranged on the sealing ring 5; the main body assembly 2 is provided with a wire harness outlet 13, the wire harness outlet 13 is spliced and matched with the wire harness 4, and the wire harness 4 is provided with a sealing plug 7 matched with the wire harness outlet 13. The end part of the wire harness 4 is connected with the terminal 6, the terminal 6 penetrates into the wire harness outlet 13 to be spliced with an electrical component in the main body assembly 2, the sealing plug 7 is bonded on the plastic protection tube of the wire harness 4, the sealing plug 7 improves the sealing performance of the fuse box at the wire harness outlet 13, the sealing ring 5 capable of realizing end face sealing and side face sealing simultaneously is L-shaped in section, one sealing ring 5 can realize end face sealing and side face sealing simultaneously, and the effect of the sealing ring is equivalent to that of two sealing rings. The protection level of the fuse box is greatly improved by utilizing the sealing ring 5 and the sealing plug 7 which realize end face sealing and side face sealing simultaneously, and the protection requirement of IP67 and above is met. The waterproof type waterproof device solves the technical problem that the existing waterproof type cannot meet the protection requirements of IP67 and above.

As shown in fig. 3, at least two valve structures 8 are disposed on the outer surface of the sealing ring 5, the valve structures 8 are structures which can effectively prevent water from leaking in from the outside like a heart valve or a blood vessel valve, preferably four valve structures 8 are disposed on the outer surface of the sealing ring 5, and the valve structures 8 are uniformly distributed on the outer surface of the sealing ring 5. The sealing ring 5 is a sealing ring with a central symmetrical joint, and the section of the sealing ring 5 is L-shaped. The sealing ring 5 adopts valve type design, and the section presents the L type, and an end face seal and side seal can be realized simultaneously to a sealing ring 5, be equivalent to the effect of two sealing rings, and the design of multilayer lamella formula 8 is more favorable to the installation of upper cover 1 and improves the leakproofness of junction, sealing ring 5 designs into central symmetry O type structural purpose and prevents to lead to waterproof failure because of the sealing ring installation mistake, in the not big structure of length direction and width direction difference, the direction mistake can influence the water-proof effects, consequently sealing ring 5 designs into central symmetry structure, the difference of length direction and width direction has directly been avoided, thereby avoided the installation direction mistake and to the influence of water-proof effects. The O-shaped structure of the sealing ring 5 is an elastic O-shaped structure, and the elastic O-shaped structure is tightly pressed on the main body assembly 2 by utilizing the shrinkage of the elastic deformation of the elastic O-shaped structure.

As shown in fig. 2 and 4, the upper cover 1 is provided with an upper cover elastic hanging structure 9, the main body assembly 2 includes a main body hanging structure 10 and a main body 11, the main body 11 is provided with a main body hanging structure 10 corresponding to the upper cover elastic hanging structure 9, and the upper cover elastic hanging structure 9 is clamped with the main body hanging structure 10. The upper cover elastic hooking structure 9 and the main body hooking structure 10 are hooked with each other after the upper cover 1 is mounted in place.

As shown in fig. 3 and fig. 4, the main body assembly 2 includes a main body hanging structure 10 and a main body 11, a wire harness outlet 13 is provided on the main body 11, the wire harness outlet 13 is a circular outlet, and the circular outlet is provided with a cylindrical sealing plug 7. The bottom of the main body 11 is provided with a clamping plate 3, round holes corresponding to the wire harness outlet ports 13 one by one are formed in the clamping plate 3, two ends of the clamping plate 3 are respectively connected with the main body 11 in a hanging mode, and a specific hanging structure is shown in fig. 4. The diameter of the round hole is matched with the wire harness and smaller than the diameter of the cylindrical sealing plug 7. The bottom of the main body 11 is provided with a clamping plate 3 for preventing the sealing plug 7 from falling off, and the clamping plate 3 is clamped with the sealing plug 7. A stop block 14 is arranged in the wire harness outlet 13, and the stop block 14 is clamped tightly to block 7. The design of the clamping plate 3 prevents the sealing plug 7 from falling out to influence the sealing effect.

In the embodiment 1, a sealing ring 5 is installed between an upper cover 1 and a main body 11, the inner wall of the upper cover 1 and the outer wall of the main body 11 are simultaneously extruded to form a first seal between the upper cover 1 and the main body 11 in the downward installation process of the upper cover 1, a valve structure 8 on the sealing ring 5 is stressed to deform downwards in the extrusion process, an elastic hanging structure 9 of the upper cover is mutually hung with a hanging structure 10 of the main body after the upper cover 1 is installed in place, the sealing ring 5 is extruded by the lower end face of the upper cover 1 and the upper end face of the main body 11 to form a second seal between the upper cover 1 and the main body 11, and sealing blocks 7 are installed at all wire harness outlet 13 positions on the main body 11 to prevent the sealing blocks 7 from falling out and affecting the sealing effect, and a clamping plate 3 is installed on the main body 11 to prevent the sealing blocks 7 from falling out.

In embodiment 2, unlike embodiment 1, a boss 12 is provided on the main body 11. The main body 11 is provided with a boss 12, and the boss 12 prevents the sealing ring 5 from moving upwards and being separated from the main body 11 in the opening process.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a high protection level's low pressure fuse box, includes upper cover (1) and main part assembly (2), its characterized in that, upper cover (1) can dismantle with main part assembly (2) and be connected, be equipped with between upper cover (1) and main part assembly (2) can realize sealed sealing washer (5) of terminal surface seal and side simultaneously, be equipped with pencil outlet (13) on main part assembly (2).

2. The high protection level low voltage fuse box of claim 1, wherein: and a valve structure (8) is arranged on the sealing ring (5).

3. The high protection level low voltage fuse box of claim 2, wherein: at least two valve structures (8) are arranged on the outer surface of the sealing ring (5), and the valve structures (8) are uniformly distributed on the outer surface of the sealing ring (5).

4. A high protection level low voltage fuse box as claimed in claim 3, wherein: the sealing ring (5) is a sealing ring with a central symmetrical joint, and the section of the sealing ring (5) is L-shaped.

5. The high protection level low voltage fuse box of any one of claims 1-4, wherein: the wire harness outlet (13) is spliced and matched with the wire harness (4), and the wire harness (4) is provided with a sealing plug (7) matched with the wire harness outlet (13).

6. The high protection level low voltage fuse box of claim 5, wherein: the main body assembly (2) comprises a main body hanging structure (10) and a main body (11), wherein a wire harness outlet (13) is arranged on the main body (11), the wire harness outlet (13) is a circular outlet, and cylindrical sealing plugs (7) are arranged at the circular outlet.

7. The high protection level low voltage fuse box of claim 6, wherein: the utility model discloses a wire harness wire outlet, including main part (11), cardboard (3) are equipped with bottom main part (11), be equipped with on cardboard (3) with pencil wire outlet (13) one-to-one's round hole, cardboard (3) both ends have respectively with main part (11) link.

8. The high protection level low voltage fuse box of claim 7, wherein: the diameter of the round hole is matched with the wire harness and smaller than the diameter of the cylindrical sealing plug (7).

9. The high protection level low voltage fuse box of claim 5, wherein: the upper cover (1) is provided with an upper cover elastic hanging structure (9), the main body (11) is provided with a main body hanging structure (10) corresponding to the upper cover elastic hanging structure (9), and the upper cover elastic hanging structure (9) is clamped with the main body hanging structure (10).

10. The high protection level low voltage fuse box of claim 6, wherein: a boss (12) is arranged on the main body (11).