Automobile central terminal box structure

Abstract

This utility model provides a central junction box structure for automobiles, relating to the field of automotive junction box technology. The structure includes a junction box body with a wiring hole on its right side. Two support components arranged front-to-back are located on the right side of the junction box body. Each support component includes a mounting box, with a movable plate slidably connected to its inner cavity. A top rod is fixedly connected to the top of the movable plate. This technical solution, by providing support components, effectively supports and limits the wiring head during connection to the junction box, enhancing its stability during insertion, removal, and fixing. These support components provide multi-directional auxiliary support from the bottom and sides when the wiring head is inserted into the wiring hole, significantly reducing the risk of bending, offset, or deformation caused by external forces, thus improving the safety and reliability of the connection operation.

Description

Technical Field

[0001] This utility model relates to the field of automotive junction box technology, and in particular to a structure for an automotive central junction box. Background Technology

[0002] The automotive central junction box (sometimes called the body control module or simply the junction box) is a key component of modern automotive electrical systems. As the central hub of the vehicle's circuitry, it is responsible for integrating and distributing power to the vehicle's various electrical components and systems. A central junction box simplifies wiring layout, reduces weight, and improves system reliability and ease of maintenance.

[0003] In the prior art (Chinese invention patent application No. 201921702695.2, entitled "A Central Electrical Junction Box for Automobiles"), the solution relates to a central electrical junction box for automobiles, including an upper cover, an electrical box, and a lower cover. The electrical box is installed in the mounting cavity formed by the upper and lower covers. Multiple insertion slots for vehicle-mounted fixing of the electrical box are fixed on the inner wall of the lower cover. Mounting holes are symmetrically provided at the four corners of the upper cover, and threaded mounting platforms are symmetrically provided at the four corners of the lower cover. Multiple insertion hooks matching the insertion slots are fixed on the outer wall of the electrical box. Multiple box assembly mounting seats are installed at the lower end of the outer wall of the lower cover. This technical solution has high stability, effectively fixing the electrical box and reducing shaking; installation requires only a pressing action, eliminating the need for tools, facilitating assembly; disassembly only requires moving the hooks, eliminating the need for tools, facilitating disassembly; the rubber pads at the bottom of the hooks ensure a tighter assembly and eliminate vibrations after installation.

[0004] The advantages of generating noise. In the process of implementing this technical solution, the inventors discovered at least the following problems in the prior art:

[0005] When connecting wires in existing automotive central junction boxes, the flexible parts of the wires directly contact the wiring holes on the junction box body, making them prone to bending and wrinkling during insertion, removal, or fixing. This phenomenon is particularly noticeable in wires with thinner ends, softer materials, or multi-strand wire structures. When subjected to external force, the flexible parts of the wires are prone to localized stress concentration at the wiring hole entrance, leading to indentations or even breakage on the wire surface, thus affecting conductivity and connection reliability. Utility Model Content

[0006] The purpose of this invention is to provide a structure for an automotive central junction box that avoids the problems of bending, wrinkling, or even breakage during the insertion, removal, or fixing of wires in existing automotive central junction boxes, where the flexible parts of the wires directly contact the wiring holes, affecting conductivity and connection reliability. This problem is particularly prominent in structures with thin wires, soft materials, or multi-strand wires.

[0007] This utility model provides a structure for a central junction box for automobiles, including a junction box body. A wiring hole is provided on the right side of the junction box body. Two support components are provided on the right side of the junction box body in a front-to-back arrangement. Each support component includes a mounting box. A movable plate is slidably connected to the inner cavity of the mounting box. A top rod is fixedly connected to the top of the movable plate. The top end of the top rod extends through to the outer side of the top of the mounting box and is fixedly connected to a top plate.

[0008] In one specific implementation, a rotating rod is rotatably connected to the inner cavity of the mounting box, and a worm gear is fixedly connected to the outer surface of the rotating rod.

[0009] In one specific implementation, the inner cavity of the mounting box is rotatably connected to a worm gear, and the worm gear meshes with a worm wheel.

[0010] In one specific implementation, the inner cavity of the mounting box is rotatably connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a threaded block, and the right side of the threaded block is slidably connected to the inner cavity of the mounting box.

[0011] In one specific implementation, a connecting plate is fixedly connected to the top of the threaded block, and the top of the connecting plate extends to the outside of the top of the mounting box.

[0012] In one specific implementation, a limiting plate is fixedly connected to the surface of the connecting plate, and the limiting plate is used in conjunction with the top plate.

[0013] In one specific implementation, a cam is fixedly connected to the surface of the rotating rod, and the top of the cam contacts the bottom of the moving plate.

[0014] In one specific implementation, a fixing block is fixedly connected to the inner cavity of the mounting box, and a return spring is sleeved on the outer surface of the top rod, with the two ends of the return spring being fixedly connected to the bottom of the fixing block and the top of the moving plate, respectively.

[0015] In one specific implementation, three bevel gears are fixedly connected to the surfaces of the rotating rod and the two threaded rods, and the three bevel gears mesh with each other.

[0016] The beneficial effects of this application are as follows: By setting up a support component, the connector can be effectively supported and limited during the connection process between the connector and the junction box, enhancing its stability during insertion, removal, and fixing. This support component provides multi-directional auxiliary support from the bottom and sides when the connector is inserted into the wiring hole, significantly reducing the risk of bending, offset, or deformation caused by external forces, thus improving the safety and reliability of the connection operation. Simultaneously, this support component also helps extend the service life of the connector, ensures the stability of the electrical connection, and improves the efficiency and quality of the overall wiring operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the disassembled state of the mounting box structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a side sectional view of the mounting box structure according to an embodiment of the present utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the fixing block structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the top plate structure according to an embodiment of the present utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the bevel gear structure according to an embodiment of the present utility model;

[0024] Figure 7 This is a three-dimensional schematic diagram of the movable plate structure according to an embodiment of the present utility model;

[0025] Figure 8 This is a three-dimensional schematic diagram of the threaded block structure according to an embodiment of the present utility model.

[0026] Icons: 1. Junction box body; 2. Wiring hole; 3. Support assembly; 31. Mounting box; 32. Rotating rod; 33. Worm gear; 34. Worm; 35. Threaded rod; 36. Threaded block; 37. Connecting plate; 38. Limiting plate; 39. Cam; 310. Moving plate; 311. Fixing block; 312. Return spring; 313. Push rod; 314. Top plate; 315. Bevel gear. Detailed Implementation

[0027] Existing automotive central junction boxes suffer from drawbacks when connecting wires. Because the flexible parts of the wires directly contact the wiring holes, bending, wrinkling, and even breakage can easily occur during insertion, removal, or fixing, affecting conductivity and connection reliability. This problem is particularly pronounced with thinner wires, softer materials, or multi-strand wire structures. Therefore, the inventors have developed an automotive central junction box structure that, through the inclusion of a support component, provides effective support and restraint during the connection process, enhancing stability during insertion, removal, and fixing, and reducing the risks of bending and misalignment. This not only improves operational safety and reliability but also helps extend the lifespan of the wires, ensuring electrical connection stability and operational efficiency, thereby resolving the aforementioned defects.

[0028] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Please refer to Figures 1 to 8This utility model provides a car central junction box structure, including a junction box body 1. A wiring hole 2 is provided on the right side of the junction box body 1. Mounting plates and mounting holes on the mounting plates are fixedly connected to both the front and rear sides of the junction box body 1, facilitating user installation. Two support components 3 are arranged front-to-back on the right side of the junction box body 1. Each support component 3 includes a mounting box 31, and the right side of the mounting box 31 is fixedly connected to the left side of the junction box body 1. A movable plate 310 is slidably connected to the inner cavity of the mounting box 31. A top rod 313 is fixedly connected to the top of the movable plate 310. The top end of the top rod 313 extends to the outer side of the top of the mounting box 31 and is fixedly connected to a top plate 314, which contacts the surface of the car's wiring terminals. A rotating rod is rotatably connected to the inner cavity of the mounting box 31. 32. A worm gear 33 is fixedly connected to the outer surface of the rotating rod 32. A worm 34 is rotatably connected to the inner cavity of the mounting box 31. The bottom end of the worm 34 extends to the outer side of the bottom of the mounting box 31 and is fixedly connected to a handle for easy twisting by the user. The worm 34 and the worm gear 33 mesh with each other. A threaded rod 35 is rotatably connected to the inner cavity of the mounting box 31. The outer surface of the threaded rod 35 is provided with two external threads arranged in opposite directions. A threaded block 36 is threadedly connected to the outer surface of the threaded rod 35. The right side of the threaded block 36 is slidably connected to the inner cavity of the mounting box 31. The area where the threaded block 36 contacts the threaded rod 35 is provided with a matching internal thread. A connecting plate 37 is fixedly connected to the top of the threaded block 36. The top of the connecting plate 37 extends to the outer side of the top of the mounting box 31. Through cavities are provided on both the front and rear sides of the top of the mounting box 31 to facilitate the movement of the connecting plate 37.

[0030] Please refer to Figures 2 to 8 A limiting plate 38 is fixedly connected to the surface of the connecting plate 37 to clamp and limit the sides and bottom of the automotive connector, thereby preventing the automotive connector from bending, wrinkling or breaking. The limiting plate 38 works in conjunction with the top plate 314. A cam 39 is fixedly connected to the surface of the rotating rod 32. The top of the cam 39 contacts the bottom of the moving plate 310. A fixing block 311 is fixedly connected to the inner cavity of the mounting box 31. A return spring 312 is sleeved on the outer surface of the top rod 313. The two ends of the return spring 312 are fixedly connected to the bottom of the fixing block 311 and the top of the moving plate 310, respectively. Three bevel gears 315 are fixedly connected to the surfaces of the rotating rod 32 and the two threaded rods 35, and the three bevel gears 315 mesh with each other.

[0031] Specifically, when the automotive connector is connected to the junction box body 1 through the wiring hole 2, the worm gear 34 can be manually rotated. The rotation of the worm gear 34 drives the worm wheel 33 to mesh and rotate. The worm wheel 33 further drives the rotating rod 32 to rotate, and the rotating rod 32 drives the cam 39 and the bevel gear 315 to rotate synchronously. During the rotation, the cam 39 pushes the moving plate 310 to move upward. During this process, the moving plate 310 compresses the return spring 312 and pushes the push rod 313 to move upward. The push rod 313 drives the top plate 314 to rise, thereby providing support contact to the bottom of the connector and preventing the bottom of the connector from bending downward.

[0032] Simultaneously, under the action of the meshing rotation of the bevel gear 315, the two threaded rods 35 rotate in opposite directions. The threaded rods 35 drive the threaded blocks 36 to move in opposite directions, and the threaded blocks 36 further drive the limiting plate 38 to move synchronously. The limiting plate 38 clamps both sides of the wire head to prevent bending of the wire head, thereby achieving effective limiting and support of the wire head.

[0033] In summary, the working principle of a car central junction box structure according to this utility model embodiment is as follows: When the car terminal is connected to the junction box body 1 through the wiring hole 2, the worm gear 34 can be manually rotated to drive the worm wheel 33 to mesh and rotate. The rotation of the worm wheel 33 further drives the rotating rod 32 to rotate, thereby driving the cam 39 and the bevel gear 315 to rotate synchronously. During the rotation of the cam 39, the moving plate 310 is pushed to move upward, compressing the return spring 312 and driving the top rod 313 to rise. Finally, the top plate 314 supports the bottom of the terminal to prevent it from bending downward. Then, the threaded block 36 drives the limiting plate 38 to move synchronously, realizing the clamping and limiting of both sides of the terminal to prevent the terminal from bending, achieving a good support and protection effect.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for a car central junction box, characterized in that, The junction box includes a junction box body (1), a wiring hole (2) is provided on the right side of the junction box body (1), and two support components (3) arranged front and back on the right side of the junction box body (1). The support component (3) includes a mounting box (31), a movable plate (310) is slidably connected to the inner cavity of the mounting box (31), a top rod (313) is fixedly connected to the top of the movable plate (310), and the top end of the top rod (313) extends to the outer side of the top of the mounting box (31) and is fixedly connected to a top plate (314).

2. The automotive central junction box structure according to claim 1, characterized in that, The inner cavity of the mounting box (31) is rotatably connected to a rotating rod (32), and a worm gear (33) is fixedly connected to the outer surface of the rotating rod (32).

3. The automotive central junction box structure according to claim 2, characterized in that, The inner cavity of the mounting box (31) is rotatably connected to a worm (34), and the worm (34) meshes with the worm wheel (33).

4. The automotive central junction box structure according to claim 3, characterized in that, The inner cavity of the mounting box (31) is rotatably connected to a threaded rod (35), and the outer surface of the threaded rod (35) is threadedly connected to a threaded block (36), and the right side of the threaded block (36) is slidably connected to the inner cavity of the mounting box (31).

5. The automotive central junction box structure according to claim 4, characterized in that, The top of the threaded block (36) is fixedly connected to a connecting plate (37), and the top of the connecting plate (37) extends to the outside of the top of the mounting box (31).

6. The automotive central junction box structure according to claim 5, characterized in that, The surface of the connecting plate (37) is fixedly connected to the limiting plate (38), and the limiting plate (38) is used in conjunction with the top plate (314).

7. The automotive central junction box structure according to claim 6, characterized in that, A cam (39) is fixedly connected to the surface of the rotating rod (32), and the top of the cam (39) is in contact with the bottom of the moving plate (310).

8. The automotive central junction box structure according to claim 7, characterized in that, The inner cavity of the mounting box (31) is fixedly connected to a fixing block (311), and the outer surface of the top rod (313) is fitted with a reset spring (312), and the two ends of the reset spring (312) are fixedly connected to the bottom of the fixing block (311) and the top of the moving plate (310) respectively.

9. The automotive central junction box structure according to claim 8, characterized in that, The surfaces of the rotating rod (32) and the two threaded rods (35) are respectively fixedly connected to three bevel gears (315), and the three bevel gears (315) mesh with each other.

Images