Two-way waterproof fuse box

Abstract

The utility model belongs to fuse box technical field, the utility model discloses including pouring upper cover and base assembly, pouring upper cover and base assembly buckle connection, and base assembly includes pouring base, and the left and right sides of pouring base top are provided with three and four wire studs respectively, and three wire studs are connected through first copper row, and four wire studs are connected through second copper row, the utility model discloses when the abnormal large current of line exists, protects the no -loss of electronic component on line, through the sealing groove setting sealing ring in pouring upper cover inside, and cooperate in the setting a circle sealing flange around the two pieces of fuse disc on pouring top, when pouring upper cover and pouring base cover, through sealing ring seal, guarantee that water can not enter the short -circuit bad of fuse disc place, further improve the waterproof performance of this fuse box, and the two -way waterproof fuse box of the utility model is simple in structure, and reliable in function can be widely used in the protection electronic component of commercial vehicle large current circuit.

Description

Technical Field

[0001] This utility model relates to the field of fuse box technology, specifically to a two-way waterproof fuse box. Background Technology

[0002] Fuse boxes are safety devices used to protect electronic components in vehicle wiring from damage when there is an abnormally large current. However, existing products of the same type cannot guarantee the waterproof performance of the fuses due to defects in manufacturing processes and related structures. This makes them very prone to short circuits, resulting in short equipment lifespan and high frequency of accidental damage, which seriously affects the normal use of fuse boxes. Therefore, it is urgent to optimize the product structure and enhance waterproof performance. Utility Model Content

[0003] The purpose of this utility model is to provide a two-way waterproof fuse box, which aims to solve the above-mentioned technical problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dual-circuit waterproof fuse box includes a cast-in-place cover and a base assembly. The cast-in-place cover is snap-fitted to the base assembly. The base assembly includes a cast-in-place base. Three and four terminal studs are respectively provided on the left and right sides of the top of the cast-in-place base. The three terminal studs are connected by a first copper busbar, and the four terminal studs are connected by a second copper busbar. The bottom of each terminal stud, the first copper busbar, and the second copper busbar are all embedded inside the cast-in-place base. Two terminal studs that are close to the center of the cast-in-place base and are laterally adjacent are... A safety plate is bridging the two safety plates. A clamping nut is threaded onto the surface of the terminal stud. The safety plate is clamped to the top surface of the casting base by the clamping nut. A sealing flange is provided on the top surface of the casting base around the two safety plates. A sealing groove is provided on the bottom of the casting cover corresponding to the sealing flange. A sealing ring is fitted into the sealing groove. The sealing flange is inserted into the sealing groove and squeezes the sealing ring. Insert nuts are embedded around the casting base at the holes corresponding to the vehicle body mounting parts.

[0006] In a preferred embodiment of this utility model, rotating rods are provided on the front and back sides of the casting base, respectively, near the center on the left and right sides. A buckle protrusion is provided on the top of the casting cover, corresponding to each of the rotating rods. The rotating rods are hooked to the bottom of the metal buckles, and the top of the metal buckles is engaged with the buckle protrusion.

[0007] In a preferred embodiment of this utility model, the left and right sides of the bottom of the metal buckle are bent into semi-circular arc portions, and the center is bent upward into a flange portion. The semi-circular arc portions are hooked onto the lower outer surface of the rotating rod, and the flange portion is pressed against the upper outer surface of the rotating rod. The top of the metal buckle is bent toward the center of the casting cover to form a snap-fit ​​portion, and the snap-fit ​​portion snaps into the buckle protrusion.

[0008] In a preferred embodiment of this utility model, the snap-fit ​​portion is provided with two reinforcing ribs arranged side by side at the bend of the metal buckle.

[0009] In a preferred embodiment of this utility model, the bottom of the casting base is provided with process holes corresponding to each of the wiring studs, and the end of the process hole that is in close contact with the wiring stud is integrally formed with a sealing plate on the casting base.

[0010] In a preferred embodiment of this utility model, a compression ridge is provided at the center of the top of the inner wall of the sealing groove, the top cross-section of the sealing flange is triangular, and the cross-section of the sealing ring is rectangular.

[0011] In a preferred embodiment of this utility model, the bottom of the wiring stud has a square structure.

[0012] In a preferred embodiment of this utility model, the top and bottom of the insert nut are provided with knurling, and an insert groove is formed between the two knurlings.

[0013] The beneficial effects of this utility model are:

[0014] This utility model uses two fuse pieces to connect two sets of left and right terminal studs. The fuse pieces are connected to the output circuit. When there is an abnormally large current in the circuit, the electronic components on the circuit are protected from damage. At the same time, a sealing ring is set in the sealing groove inside the casting cover, and a sealing flange is set around the two fuse pieces on the top of the casting. When the casting cover and the casting base are closed, the sealing ring seals the circuit, ensuring that water cannot enter the fuse pieces and cause short circuits. This further improves the waterproof performance of the fuse box. This two-way waterproof fuse box has a simple structure and reliable function, and can be widely used in high-current circuits of commercial vehicles to protect electronic components. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional exploded structure diagram of this utility model;

[0017] Figure 3 This is a schematic diagram of the full cross-sectional planar structure of this utility model;

[0018] Figure 4 yes Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 This is a 3D structural diagram of the base assembly;

[0020] Figure 6 This is a schematic diagram of the full cross-sectional planar structure of the base assembly;

[0021] Figure 7 This is a 3D structural diagram of a metal buckle;

[0022] Figure 8 This is a three-dimensional structural diagram of the wiring stud;

[0023] Figure 9 This is a three-dimensional structural diagram of the insert nut.

[0024] Reference numerals in the attached diagram; wherein: 1. Casting cover; 11. Snap-fit ​​protrusion; 12. Sealing groove; 13. Extrusion ridge; 2. Sealing ring; 3. Metal snap-fit; 31. Semi-circular arc portion; 32. Flanged portion; 33. Snap-fit ​​portion; 34. Reinforcing rib; 4. Compression nut; 5. Safety plate; 6. Base assembly; 61. First copper busbar; 62. Insert nut; 621. Knurled pattern; 622. Inlay groove; 63. Wiring stud; 64. Second copper busbar; 65. Casting base; 651. Rotating rod; 652. Process hole; 653. Sealing plate; 66. Sealing flange. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is 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. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0026] Example:

[0027] like Figure 1-9As shown, this embodiment provides a two-way waterproof fuse box, including a cast-in-place cover 1 and a base assembly 6. The cast-in-place cover 1 and the base assembly 6 are snap-fitted together. The base assembly 6 includes a cast-in-place base 65. Three and four terminal studs 63 are respectively provided on the left and right sides of the top of the cast-in-place base 65. The three terminal studs 63 are connected by a first copper busbar 61, and the four terminal studs 63 are connected by a second copper busbar 64. The bottom of each terminal stud 63, the first copper busbar 61, and the second copper busbar 64 are all embedded inside the cast-in-place base 65. Two terminal studs 63 that are close to the center of the cast-in-place base 65 and are laterally adjacent to each other are also included. A safety plate 5 is bridging between the terminal studs 63. A clamping nut 4 is threaded onto the surface of the terminal studs 63. The safety plate 5 is clamped to the top surface of the casting base 65 by the clamping nut 4. A sealing flange 66 is provided on the top surface of the casting base 65 around the two safety plates 5. A sealing groove 12 is provided at the bottom of the casting cover 1 corresponding to the sealing flange 66. A sealing ring 2 is installed in the sealing groove 12. The sealing flange 66 is inserted into the sealing groove 12 and squeezes the sealing ring 2. Insert nuts 62 are embedded around the casting base 65 at the holes corresponding to the mounting parts of the vehicle body.

[0028] Specifically, such as Figure 1-7 As shown, by placing three terminal studs 63 arranged in a triangular shape and four terminal studs 63 arranged in an isosceles trapezoidal shape into the mold, and simultaneously placing the first copper busbar 61 and the second copper busbar 64 corresponding to the three and four terminal studs 63, as well as multiple insert nuts 62 according to the installation requirements of the corresponding vehicle model, the base assembly 6 is formed by injection molding plastic granules into the mold in one step, and the components are wrapped by the casting base 65 to achieve waterproofing;

[0029] Two fuse pieces 5 connect the left and right sets of terminal blocks 63. The fuse pieces 5 are connected to the output circuit. When there is an abnormally large current in the circuit, the electronic components on the circuit are protected from damage. At the same time, a sealing ring 2 is set in the sealing groove 12 inside the casting cover 1, and a sealing flange 66 is set around the two fuse pieces 5 on the top of the casting. When the casting cover 1 and the casting base 65 are closed, the sealing ring 2 seals the fuse, ensuring that water cannot enter the fuse piece 5 and cause a short circuit. This further improves the waterproof performance of the fuse box. This two-way waterproof fuse box has a simple structure and reliable function. It can be widely used in high-current circuits of commercial vehicles to protect electronic components.

[0030] In a preferred embodiment of this utility model, a rotating rod 651 is provided on the front and back sides of the casting base 65, and on the left and right sides near the center. A buckle protrusion 11 is provided on the top of the casting cover 1, corresponding to each rotating rod 651. The rotating rod 651 is hooked to the bottom of the metal buckle 3, and the top of the metal buckle 3 is engaged with the buckle protrusion 11.

[0031] In a preferred embodiment of this utility model, the bottom left and right sides of the metal buckle 3 are bent into semi-circular arc portions 31, and the center is bent upward into a flange portion 32. The semi-circular arc portion 31 is hooked onto the lower outer surface of the rotating rod 651, and the flange portion 32 is pressed against the upper outer surface of the rotating rod 651. The top of the metal buckle 3 is bent toward the center of the casting cover 1 to form a snap-fit ​​portion 33, and the snap-fit ​​portion 33 snaps into the buckle protrusion 11.

[0032] In a preferred embodiment of the present invention, the snap-fit ​​portion 33 is further provided with two reinforcing ribs 34 arranged side by side at the bend of the metal buckle 3.

[0033] Specifically, such as Figure 7 As shown, the metal buckle 3 is hooked to the rotating rod 651 through the semi-circular arc part 31 at its bottom, and the rotating rod 651 is pressed by the flange part 32, thereby realizing the rotational connection between it and the rotating rod 651, and facilitating installation, disassembly, maintenance and replacement. The upper part is bent to form a snap-fit ​​part 33 and snaps with the buckle protrusion 11. Multiple metal buckles 3 press the casting cover 1 and the casting base 65 together, thereby squeezing the sealing ring 2 to achieve waterproof sealing.

[0034] In a preferred embodiment of the present invention, further, a process hole 652 is provided at the bottom of the casting base 65 corresponding to each wiring stud 63, and a sealing plate 653 is integrally formed with the casting base 65 at the end of the process hole 652 that is in close contact with the wiring stud 63.

[0035] Specifically, such as Figure 5-6 As shown, due to limitations of the injection molding process, multiple process holes 652 are left on the top of the casting base 65 during its formation. These process holes 652 cause the bottom of the terminal stud 63 to be exposed, thus preventing waterproofing. Therefore, to solve this long-standing technical problem, this fuse box uses a spring positioning structure in the injection mold to create an integral sealing plate 653 while the casting base 65 is being injection molded. This seals the process holes 652, preventing the terminal stud 63 from being exposed and thus achieving complete waterproofing of the casting base 65.

[0036] In a preferred embodiment of the present invention, a compression ridge 13 is further provided at the center of the top of the inner wall of the sealing groove 12, the top cross-section of the sealing flange 66 is triangular, and the cross-section of the sealing ring 2 is rectangular.

[0037] Specifically, such as Figure 4 As shown, by setting the sealing flange 66 as a triangular structure, the waterproof capability of the sealing ring 2 is improved by reducing the contact area. At the same time, a compression ridge 13 is set on the top of the inner wall of the sealing groove 12. While reducing the contact area, the sealing capability of the sealing ring 2 is further improved by increasing the deformation of the sealing ring 2.

[0038] In a preferred embodiment of this utility model, the bottom of the wiring stud 63 is further shaped into a square structure; specifically, as shown... Figure 8 As shown, by setting the bottom of the terminal stud 63 to a square shape, it can be better fixed to the casting base 65, preventing it from loosening and affecting the product's performance and service life.

[0039] In a preferred embodiment of this utility model, the top and bottom of the insert nut 62 are provided with knurling 621, and an inlay groove 622 is formed between the two knurling 621; specifically, as shown... Figure 9 As shown, by setting the inlay pattern and inlay groove 622, it can be better fixed to the casting base 65, preventing it from loosening and affecting the product's performance and service life.

[0040] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dual-circuit waterproof fuse box, comprising a cast-in-place top cover (1) and a base assembly (6), wherein the cast-in-place top cover (1) and the base assembly (6) are snap-fitted together, characterized in that, The base assembly (6) includes a casting base (65). Three and four terminal studs (63) are respectively provided on the left and right sides of the top of the casting base (65). The three terminal studs (63) are connected by a first copper busbar (61), and the four terminal studs (63) are connected by a second copper busbar (64). The bottom of each terminal stud (63), the first copper busbar (61), and the second copper busbar (64) are all embedded inside the casting base (65). A safety piece (5) is connected between two terminal studs (63) that are close to the center of the casting base (65) and are laterally adjacent. The surface of the terminal studs (63) is threaded. A clamping nut (4) is attached, and the safety plate (5) is clamped to the top surface of the casting base (65) by the clamping nut (4). A sealing flange (66) is provided on the top surface of the casting base (65) around the two safety plates (5). A sealing groove (12) is provided at the bottom of the casting cover (1) corresponding to the sealing flange (66). A sealing ring (2) is installed in the sealing groove (12). The sealing flange (66) is inserted into the sealing groove (12) and squeezes the sealing ring (2). Insert nuts (62) are embedded around the casting base (65) at the holes corresponding to the vehicle body mounting parts.

2. A dual-circuit waterproof fuse box according to claim 1, characterized in that, Rotating rods (651) are provided on the front and back sides of the casting base (65) and on the left and right sides near the center, respectively. A buckle protrusion (11) is provided on the top of the casting cover (1) and corresponding to each of the rotating rods (651). The rotating rods (651) are hooked to the bottom of the metal buckle (3), and the top of the metal buckle (3) is engaged with the buckle protrusion (11).

3. A dual-circuit waterproof fuse box according to claim 2, characterized in that, The bottom left and right sides of the metal buckle (3) are bent into semi-circular arcs (31), and the center is bent upward into a flange (32). The semi-circular arc (31) is attached to the lower outer surface of the rotating rod (651), and the flange (32) is pressed against the upper outer surface of the rotating rod (651). The top of the metal buckle (3) is bent toward the center of the casting cover (1) to form a snap-fit ​​part (33), and the snap-fit ​​part (33) snaps into the buckle protrusion (11).

4. A dual-circuit waterproof fuse box according to claim 3, characterized in that, The snap-fit ​​part (33) is located at the bend of the metal buckle (3) and has two reinforcing ribs (34) arranged side by side.

5. A dual-circuit waterproof fuse box according to claim 1, characterized in that, The bottom of the casting base (65) is provided with process holes (652) corresponding to each of the wiring studs (63). The end of the process hole (652) that is in close contact with the wiring stud (63) is integrally formed with the casting base (65) with a sealing plate (653).

6. A dual-circuit waterproof fuse box according to claim 1, characterized in that, A compression ridge (13) is provided at the center of the top of the inner wall of the sealing groove (12), the top cross-section of the sealing flange (66) is triangular, and the cross-section of the sealing ring (2) is rectangular.

7. A dual-circuit waterproof fuse box according to claim 1, characterized in that, The bottom of the wiring stud (63) has a square structure.

8. A dual-circuit waterproof fuse box according to claim 1, characterized in that, The insert nut (62) has knurled patterns (621) on its top and bottom sides, and an inlay groove (622) is provided between the two knurled patterns (621).

Images