Bunching structure of distribution box

Abstract

The utility model relates to the technical field of power distribution boxes, and discloses a bunching structure of a power distribution box, which comprises a box body, a heat dissipation unit, a box door and an integrated fixing assembly, and realizes self-adaptive clamping and reliable fixation of a wire harness, and the fixing assembly on the inner wall of the box body takes a fixing plate as a carrier. A hollow window on the surface of the box body optimizes an air circulation path while reducing the weight, one side, facing the center of the box body, of a fixed plate is fixedly connected with an assembly seat, a plurality of arc-shaped plates are uniformly distributed in a positioning hole of the assembly seat, a linkage mechanism is formed through a connecting rod and a limiting seat, and the arc-shaped plates are in an unfolded state through elastic force of an arch-shaped elastic piece. The inclined surface of the sponge ring guides the wire harness to be inserted easily. When a top handle is rotated, an external thread rotating roller drives a push plate to apply pressure downwards, an arc-shaped plate is forced to overcome elastic force to be folded, synchronous contraction is achieved through sliding limiting of a connecting rod, and finally the wire harness is tightly wrapped to complete fixing, mechanical elastic linkage and self-adaptive clamping characteristics, so that the device is suitable for complex scenes with strong vibration.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, and in particular to a wiring structure for a distribution box. Background Technology

[0002] In power systems and electrical equipment applications, distribution boxes serve as the core carrier for power distribution and control, and the rationality and safety of their internal cable arrangement have always been a key focus of the industry. With the increasing integration of modern electrical equipment and the growing complexity of power demands, the number of cables inside distribution boxes is increasing daily, encompassing various types such as power lines, signal lines, and control lines. This places higher demands on cable management.

[0003] Existing cable management technologies lack stability: Traditional distribution boxes typically use simple methods such as cable ties and bindings for cable bundling. Over long-term use, these methods are prone to loosening due to factors such as thermal expansion and contraction of cables and vibration, leading to cables becoming tangled or even falling off. For example, in industrial production environments, the mechanical vibrations of operating equipment can cause cable ties to gradually loosen, resulting in cables becoming entangled. This not only affects the heat dissipation efficiency inside the distribution box but may also cause insulation damage due to friction, creating a potential short circuit hazard. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the wire harnesses in the existing technology are prone to falling off. To address this, we propose a wire harness structure for a distribution box.

[0005] To achieve the above objectives, this application adopts the following technical solution: a wiring structure for a distribution box, including a box body, a fixing component provided on one side of the inner wall of the box body, the fixing component including a fixing plate, one side of the fixing plate being fixedly connected to one side of the inner wall of the box body, an assembly base being fixedly connected to the side of the fixing plate facing the center of the box body, the surface of the assembly base having a through-hole positioning hole, multiple arc-shaped plates being built into the positioning hole, multiple connecting rods being provided between the multiple arc-shaped plates, an arc-shaped spring being sleeved inside the annular structure formed by the multiple arc-shaped plates, a sponge ring being sleeved inside the arc-shaped spring, one end of the sponge ring having an inclined surface, and a push plate being provided at the top of the annular structure formed by the multiple arc-shaped plates.

[0006] Preferably, a heat dissipation unit is installed at the bottom of the enclosure, and a door is hinged to the opening of the enclosure.

[0007] Preferably, the surface of the fixing plate has multiple perforated windows.

[0008] Preferably, the plurality of the arc-shaped plates are evenly distributed around the axis of the positioning hole.

[0009] Preferably, the arc-shaped plate has an assembly chamber inside, and multiple sliding holes are provided on both sides of the arc-shaped plate, with the sliding holes communicating with the assembly chamber.

[0010] Preferably, both ends of the connecting rod extend through the sliding holes into the assembly cavity.

[0011] Preferably, a limiting seat is fixedly connected to one end of the connecting rod inside the assembly cavity, and the limiting seat is slidably connected to the inner wall of the assembly cavity.

[0012] Preferably, the top of the push plate is provided with a rotating roller, the surface of the rotating roller is provided with external threads, the rotating roller is threadedly connected to the mounting base through the external threads, and a handle is fixedly connected to the top of the rotating roller.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model device consists of a housing, a heat dissipation unit, a door, and an integrated fixing assembly. The fixing assembly, through a mechanical linkage design, achieves adaptive clamping and reliable fixation of the wire harness. The fixing assembly on the inner wall of the housing uses a fixing plate as a carrier, and its surface perforated windows reduce weight while optimizing airflow. The fixing plate is fixed to a mounting base facing the center of the housing. Multiple arc-shaped plates are evenly distributed within its positioning holes, forming a linkage mechanism with a limiting seat via a connecting rod. In the initial state, the elastic force of the bow-shaped spring causes the arc-shaped plates to unfold, allowing the inclined surface of the sponge ring to easily guide the wire harness insertion. When the top handle is rotated, the externally threaded rotating roller drives the push plate downwards, forcing the arc-shaped plates to overcome the elastic force and close. Synchronous contraction is achieved through the sliding limit of the connecting rod, ultimately tightly wrapping the wire harness and completing the fixation.

[0015] The structure significantly enhances stability through an elastic adaptive mechanism: the bow-shaped spring provides continuous clamping force, allowing the arc-shaped plate to dynamically adjust its fit according to the thermal expansion and contraction of the cable, preventing loosening or detachment due to vibration or temperature changes; the mechanically linked ring-shaped contraction structure automatically adapts to the cable bundle thickness, ensuring stable clamping of cables of different specifications. In terms of heat dissipation design, the perforated window and the adjustable gap of the arc-shaped plate together create an airflow channel, which, together with the bottom heat dissipation unit, effectively reduces the temperature rise in areas with dense cables, ensuring a safe operating environment for electrical components. For protection, the flexible cushioning of the sponge ring prevents damage to the insulation layer from clamping force, and its optimized surface friction coefficient design reduces cable wear under vibration, structurally reducing the risk of short-circuit faults.

[0016] This wire harness structure integrates mechanical elastic linkage, self-adaptive clamping, and heat dissipation protection into a systematic solution. It is suitable for complex scenarios with high vibration and large temperature variations, such as industrial control and power distribution. It not only meets the installation requirements for neat wire harness layout but also improves the operational reliability of distribution boxes through long-term stable fixing performance, providing crucial support for the safety and durability of electrical systems. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0021] Figure 4 This is an exploded view of the fixing component of this utility model;

[0022] Figure 5 This is a second-view structural diagram of the fixed component of this utility model in the event of an explosion.

[0023] Legend: 1. Housing; 101. Heat dissipation unit; 2. Door; 3. Fixing component; 301. Fixing plate; 302. Hollowed-out window; 303. Assembly base; 304. Positioning hole; 305. Arc plate; 306. Assembly chamber; 307. Sliding hole; 308. Connecting rod; 309. Limiting seat; 310. Bow-shaped spring; 311. Sponge ring; 312. Inclined surface; 313. Push plate; 314. Rotating roller; 315. Rotating bearing; 316. External thread; 317. Handle. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figures 1 to 5As shown, this utility model provides a technical solution: a wiring structure for a distribution box, including a box body 1, a heat dissipation unit 101 installed at the bottom of the box body 1, a door 2 hinged to the opening of the box body 1, a fixing component 3 provided on one side of the inner wall of the box body 1, the fixing component 3 including a fixing plate 301, one side of the fixing plate 301 being fixedly connected to one side of the inner wall of the box body 1, multiple hollow windows 302 opened on the surface of the fixing plate 301, an assembly base 303 fixedly connected on the side of the fixing plate 301 facing the center of the box body 1, a positioning hole 304 penetrating through the mounting base 303 opened on the surface of the mounting base 303, multiple arc-shaped plates 305 inside the positioning hole 304, the multiple arc-shaped plates 305 being evenly distributed around the axis of the positioning hole 304, multiple connecting rods 308 being provided between the multiple arc-shaped plates 305, and the interior of the arc-shaped plates 305 being... An assembly chamber 306 is provided. Multiple sliding holes 307 are provided on both sides of the multi-arc plate 305. The sliding holes 307 are connected to the assembly chamber 306. The two ends of the connecting rod 308 pass through the sliding holes 307 and extend into the assembly chamber 306. One end of the connecting rod 308 inside the assembly chamber 306 is fixedly connected to a limiting seat 309. The limiting seat 309 is slidably connected to the inner wall of the assembly chamber 306. The multiple arc plates 305 form a ring structure and an arc-shaped spring 310 is sleeved inside. A sponge ring 311 is sleeved inside the arc-shaped spring 310. One end of the sponge ring 311 has an inclined surface 312. In the initial state, the arc-shaped spring 310 causes the multiple arc plates 305 to unfold due to its own elastic force. At this time, the inner diameter of the ring structure formed by the multiple arc plates 305 is large, which facilitates the insertion of the wire harness. The inclined surface 312 at one end of the sponge ring 311 provides a guide for the insertion of the wire harness. The operator can easily insert the wire harness into the ring formed by multiple arc plates 305 along the inclined surface 312.

[0026] A push plate 313 is provided at the top of the annular structure formed by multiple arc-shaped plates 305. A rotating roller 314 is provided at the top of the push plate 313. The rotating roller 314 has an external thread 316 on its surface and is threadedly connected to the mounting base 303 through the external thread 316. A handle 317 is fixedly connected to the top of the rotating roller 314. When it is necessary to fix the wire harness, the handle 317 at the top is rotated, and the rotating roller 314 fixedly connected to the handle 317 rotates accordingly. Since the rotating roller 314 has an external thread 316 on its surface and is threadedly connected to the mounting base 303 through the external thread 316, and a rotating bearing 315 is sleeved and fixed at the bottom of the rotating roller 314, the rotation of the rotating roller 314 is converted into linear motion along its own axis, thereby driving the push plate 313 to move downward. When the push plate 313 moves downward, it applies pressure to the multiple arc-shaped plates 305, causing the arc-shaped plates 305 to overcome the elastic force of the bow-shaped spring 310 and close towards the center around the axis of the positioning hole 304. During the closing process of the arc-shaped plates 305, the connecting rod 308 slides within the sliding hole 307, and the limiting seats 309 at both ends slide within the assembly chamber 306, ensuring the stability and synchronization of the movement of the arc-shaped plates 305. Finally, multiple arc-shaped plates 305 tightly wrap around the wire harness, achieving the fixation of the wire harness.

[0027] This cable harness structure utilizes the cooperation of the bow-shaped spring 310 and the arc-shaped plate 305. When the handle 317 is turned to close the arc-shaped plate 305, it adaptively adjusts according to the thickness and shape of the cable harness, tightly fitting the surface of the harness. The elastic force provided by the bow-shaped spring 310 ensures that the arc-shaped plate 305 maintains a certain clamping force on the cable harness. When the cable expands or contracts due to temperature changes, the arc-shaped plate 305 can make slight displacement adjustments under the action of the bow-shaped spring 310, thus continuously and stably fixing the cable harness and preventing loosening caused by cable displacement. Even in environments with high vibration, the clamping force of the arc-shaped plate 305 and the stable structure ensure that the cable harness will not become tangled or fall off, greatly improving the stability of the cable harness.

[0028] In the structure, the arc-shaped plates 305 are in an unfolded state under normal conditions. After the wire harness is inserted, by adjusting the degree of closure of the arc-shaped plates 305, the wire harness can be fixed without excessively binding the cable, ensuring that there is a certain gap between the cables, which is conducive to the airflow in the distribution box. Together with the heat dissipation unit 101 installed at the bottom of the box 1, the heat dissipation efficiency of the distribution box can be effectively improved, ensuring that the internal electrical components work in a suitable temperature environment.

[0029] The foam ring 311 is soft and can closely conform to the surface of the wire harness. When the curved plate 305 clamps the wire harness, the foam ring 311 can buffer the pressure of the curved plate 305 on the wire harness, preventing damage to the wire harness insulation layer due to excessive clamping force. At the same time, the foam ring 311 can also reduce the friction between the cable and the curved plate 305, effectively protecting the cable insulation layer from wear even in vibrating environments, reducing the possibility of short circuits and other faults, and providing good protection for the wire harness in the distribution box.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A wiring harness structure for a distribution box, characterized in that, The device includes a housing. A fixing component is provided on one side of the inner wall of the housing. The fixing component includes a fixing plate. One side of the fixing plate is fixedly connected to one side of the inner wall of the housing. An assembly base is fixedly connected to the side of the fixing plate facing the center of the housing. The surface of the assembly base has a through-hole positioning hole. Multiple arc-shaped plates are built into the positioning hole. Multiple connecting rods are provided between the multiple arc-shaped plates. An arc-shaped spring is sleeved inside the annular structure formed by the multiple arc-shaped plates. A sponge ring is sleeved inside the arc-shaped spring. One end of the sponge ring has an inclined surface. A push plate is provided at the top of the annular structure formed by the multiple arc-shaped plates.

2. The wiring structure of the distribution box according to claim 1, characterized in that: A heat dissipation unit is installed at the bottom of the enclosure, and a door is hinged to the opening of the enclosure.

3. The wiring structure of the distribution box according to claim 1, characterized in that: The surface of the fixing plate has multiple hollowed-out windows.

4. The wiring structure of the distribution box according to claim 1, characterized in that: Multiple arc-shaped plates are evenly distributed around the axis of the positioning hole.

5. The wiring structure of the distribution box according to claim 1, characterized in that: The arc-shaped plate has an assembly chamber inside, and multiple sliding holes are provided on both sides of the arc-shaped plate, which are connected to the assembly chamber.

6. The wiring structure of the distribution box according to claim 1, characterized in that: The two ends of the connecting rod extend through the sliding holes into the assembly cavity.

7. The wiring structure of the distribution box according to claim 1, characterized in that: The connecting rod is fixedly connected to a limiting seat at one end inside the assembly cavity, and the limiting seat is slidably connected to the inner wall of the assembly cavity.

8. The wiring structure of the distribution box according to claim 1, characterized in that: The top of the push plate is provided with a rotating roller, the bottom of the rotating roller is sleeved and fixed with a rotating bearing, the surface of the rotating roller is provided with external threads, the rotating roller is threaded to the mounting base through the external threads, and a handle is fixedly connected to the top of the rotating roller.

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