Low-voltage junction box

Abstract

The utility model discloses a low-voltage distribution box, which comprises a box body, an installation cavity is arranged in the box body, a wire arranging frame is arranged on the inner wall of the installation cavity, wire bunching frames are arranged on the inner wall of the installation cavity above and below the wire arranging frame, and the wire arranging frame comprises a fixed plate and a distribution plate. The end face of the rear end of the fixing plate is connected with the surface of the inner wall of the mounting cavity, the two sides of the surface of the front end of the fixing plate are fixedly connected with distributor plates, the surfaces of the distributor plates are evenly provided with a plurality of wire arranging openings, and wire clamping grooves are formed in the positions, located on the two wire arranging opening supports, above the surfaces of the distributor plates. The surface of the distributor plate is provided with a fastening port right above the wire arrangement port. And through the wire clamping grooves formed between the wire arranging openings in the surface of the wire distributing plate, wires are preliminarily positioned, and the wires are prevented from shaking. The tightening openings are arranged to facilitate further fixation of the wires, and the wire bunching racks arranged up and down can tighten the wires in the box body in a layered manner through the wire bunching hooks bent inwards at the two ends of the fixing seats, so that the phenomenon that the wires are disordered is avoided.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage junction box technology, specifically a low-voltage junction box. Background Technology

[0002] A low-voltage junction box is a device used in power distribution systems. It is usually installed in a box on a wall and is used to connect and distribute power. It provides a centralized point for managing power distribution inside a building. It is typically used to bring the main power supply into the building and distribute power to different electrical devices or circuits.

[0003] In existing low-voltage distribution boxes, the aluminum busbars are arranged vertically with small spacing, resulting in poor space utilization. Furthermore, the crisscrossing wires inside the distribution boxes further complicate the space, causing significant inconvenience for daily maintenance. During maintenance, to ensure safety, the power supply to the low-voltage side of the upstream public distribution transformer must be disconnected before any work can begin, which is extremely cumbersome. Summary of the Invention

[0004] The purpose of this utility model is to provide a low-voltage distribution box to solve the problems mentioned in the background art, where the aluminum busbars are arranged vertically with small spacing, resulting in poor space utilization. Furthermore, the crisscrossing wires inside the distribution box make the space even more cramped and confined, causing great inconvenience to daily maintenance work. During maintenance, to ensure safety, the low-voltage power supply of the upstream public distribution transformer must be disconnected before maintenance work can begin, which is very cumbersome.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage junction box, comprising a box body, an installation cavity being provided inside the box body, a cable tray being installed on the inner wall of the installation cavity, and cable bundles being installed above and below the cable tray on the inner wall of the installation cavity. The cable tray includes a fixing plate and a cable distribution plate. The rear end face of the fixing plate is connected to the surface of the inner wall of the installation cavity, and the cable distribution plate is fixedly connected to both sides of the front end face of the fixing plate. Multiple cable tray openings are evenly provided on the surface of the cable distribution plate. Cable clamping grooves are provided above the cable tray openings on the surface of the cable distribution plate at the two cable tray brackets, and a clamping opening is provided on the surface of the cable distribution plate directly above the cable tray openings.

[0006] Preferably, the surface of the fixing plate is provided with a plurality of irregular holes evenly distributed, and the inner wall surface of the mounting cavity is provided with fixing holes at positions opposite to the irregular holes, and the fixing holes and the irregular holes are fixedly connected by bolts.

[0007] Preferably, the cable tie frame includes a fixing base and cable hooks. The fixing base is installed on the inner wall surface of the mounting cavity, and cable hooks bent inward are fixedly connected to both ends of the fixing base.

[0008] Preferably, the top and bottom surfaces of the housing are provided with multiple cable holes at positions opposite to the cable tray, and the cable holes communicate with the mounting cavity.

[0009] Preferably, the front surface of the housing is fixedly connected to a door via a hinge at a position opposite to the mounting cavity.

[0010] Beneficial effects

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0012] 1. In terms of improving space utilization, this low-voltage junction box abandons the traditional vertical arrangement of aluminum busbars and innovatively adopts a structural design combining cable trays and cable bundles. The cable tray's distribution plates are distributed on both sides, and multiple evenly spaced cable tray openings on its surface can orderly distribute different lines, changing the previous messy distribution of wires. At the same time, the irregular holes on the surface of the fixing plate cooperate with the fixing holes on the inner wall of the mounting cavity, allowing for flexible adjustment of the cable tray's installation position via bolts. This makes the internal space layout of the box more rational, greatly improving the space utilization rate inside the mounting cavity and avoiding the limitations caused by the cramped space of traditional junction boxes.

[0013] 2. Regarding cable management, the cable trays located between the cable tray openings on the top of the distribution panel provide initial positioning for incoming wires, preventing them from shifting. The cable ties allow for easy securing of the wires with cable ties or similar tools, ensuring a neat and orderly arrangement. The upper and lower cable management brackets, with their inward-bending hooks at both ends of the mounting bases, allow for layered and tighter cable management within the box, preventing tangled wires. Combined with the cable holes at the top and bottom of the box corresponding to the cable management brackets, the wire entry and exit paths are clearly defined, fundamentally solving the problem of messy wiring within the distribution box and making the internal layout clear and easy to understand.

[0014] 3. Regarding ease of maintenance, the neat arrangement of wires and spacious interior allow maintenance personnel to quickly locate the lines and components requiring repair, eliminating the need to search through congested wiring and significantly reducing preparation time. Furthermore, the orderly wiring layout reduces interference and tangling between lines, lowering the risk of accidents caused by accidental contact with other lines during maintenance. Compared to the cumbersome operation of disconnecting the low-voltage power supply of the upstream public distribution transformer during traditional junction box maintenance, this invention, through optimized internal structure, provides a safer and more convenient environment for maintenance work, effectively improving the efficiency of daily maintenance and reducing the workload of maintenance personnel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the box structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cable tray structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the cable tie structure of this utility model.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Enclosure; 2. Cable tray; 3. Cable bundle; 4. Enclosure door; 11. Mounting cavity; 12. Fixing holes;

[0021] 13. Cable hole; 21. Fixing plate; 22. Splitting plate; 23. Irregular hole; 24. Cable tray; 25. Cable clamping groove;

[0022] 26. Tighten the opening; 31. Fix the base; 32. Wire hook. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] like Figure 1-4This is a schematic diagram of a preferred embodiment of a low-voltage junction box according to this utility model. In this embodiment, the low-voltage junction box includes a box body 1, which is the basic load-bearing component of the entire low-voltage junction box. An installation cavity 11 is provided inside the box body, providing installation space for components such as the cable tray 2 and cable bundle 3. Multiple cable holes 13 are respectively provided on the top and bottom surfaces of the box body 1 at positions opposite to the cable tray 2, and these cable holes 13 communicate with the installation cavity 11. These cable holes 13 provide channels for the entry and exit of wires, allowing wires to enter and exit the junction box in an orderly manner. Simultaneously, a door 4 is fixedly connected to the front surface of the box body 1 at a position opposite to the installation cavity 11 via a hinge. The door 4 not only protects the components inside the installation cavity 11 from dust and debris but also facilitates inspection and maintenance of the junction box's interior.

[0026] In this embodiment, the cable tray 2 is a key component for the orderly distribution and fixation of wires, and it includes a fixing plate 21 and a branching plate 22. The rear end face of the fixing plate 21 is connected to the inner wall surface of the mounting cavity 11, and the branching plates 22 are fixedly connected to both sides of the front end surface of the fixing plate 21. The branching plates 22 are distributed on both sides. This structural design changes the traditional vertical arrangement of aluminum busbars and enables the orderly distribution of different lines. The surface of the branching plate 22 has multiple cable trays 24 evenly distributed. These cable trays 24 can accommodate different numbers of wires according to actual needs, realizing the initial distribution of wires. A wire clamping groove 25 is provided on the surface of the branching plate 22 between two cable trays 24. The wire clamping groove 25 can initially position the wires after they enter, prevent the wires from shaking randomly, and ensure the stability of the wires during the distribution process. A tightening slot 26 is provided on the surface of the branching plate 22 directly above the cable tray 25. The tightening slot 26 facilitates the use of cable ties and other tools to further fix the wires, ensuring that the wires are arranged neatly and orderly.

[0027] In this embodiment, a plurality of irregularly shaped holes 23 are evenly formed on the surface of the fixing plate 21, and fixing holes 12 are formed on the inner wall surface of the mounting cavity 11 at positions opposite to the irregularly shaped holes 23. The fixing holes 12 and the irregularly shaped holes 23 are fixedly connected by bolts. Through the cooperation of the irregularly shaped holes 23 and the fixing holes 12 and the fixing effect of the bolts, the installation position of the cable tray 2 in the mounting cavity 11 can be flexibly adjusted, making the spatial layout inside the housing 1 more reasonable and greatly improving the space utilization rate inside the mounting cavity 11.

[0028] In this embodiment, the cable tie 3 is used to bundle the wires inside the housing 1 in layers. It includes a fixing base 31 and cable hooks 32. The fixing base 31 is installed on the inner wall surface of the mounting cavity 11, and cable hooks 32 bent inward are fixedly connected to both ends of the fixing base 31. Cable ties 3 are installed on the inner wall of the mounting cavity 11 above and below the cable tray 2. The cable ties 3, which are set up above and below, can bundle the wires inside the housing 1 in layers through the cable hooks 32, avoiding the phenomenon of tangled wires and further ensuring the neatness of the wires inside the housing.

[0029] Working principle

[0030] External wires enter the mounting cavity 11 through cable holes 13 at the top or bottom of the enclosure 1. They are first initially bundled and layered by the cable hooks 32 of the cable tie 3. Then, the wires enter the cable tray 2, where they are branched through the cable outlets 24 on the cable divider 22. Cable clips 25 provide initial positioning to prevent movement. Finally, cable ties are used to further secure the wires through the securing openings 26, ensuring neat arrangement. When the enclosure door 4 is closed, it protects the internal components and wires; opening the door allows for inspection and maintenance.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A low-voltage distribution box, comprising a box body (1), characterized in that: The housing (1) has an installation cavity (11) inside. A cable tray (2) is installed on the inner wall of the installation cavity (11). Cable bundles (3) are installed on the inner wall of the installation cavity (11) above and below the cable tray (2). The cable tray (2) includes a fixing plate (21) and a cable divider (22). The rear end face of the fixing plate (21) is connected to the inner wall surface of the installation cavity (11). The cable divider (22) is fixedly connected to both sides of the front end surface of the fixing plate (21). Multiple cable trays (24) are evenly opened on the surface of the cable divider (22). Cable clamping grooves (25) are opened on the support of two cable trays (24) above the surface of the cable divider (22). A clamping opening (26) is opened on the surface of the cable divider (22) directly above the cable tray (24).

2. The low-voltage distribution box according to claim 1, characterized in that: The surface of the fixing plate (21) is evenly provided with a plurality of irregular holes (23), and the inner wall surface of the mounting cavity (11) is provided with a fixing hole (12) at the position opposite to the irregular holes (23), and the fixing hole (12) and the irregular holes (23) are fixedly connected by bolts.

3. The low-voltage distribution box according to claim 1, characterized in that: The cable tie frame (3) includes a fixing seat (31) and cable hooks (32). The fixing seat (31) is installed on the inner wall surface of the mounting cavity (11), and cable hooks (32) bent inward are fixedly connected to both ends of the fixing seat (31).

4. The low-voltage distribution box according to claim 1, characterized in that: The top and bottom surfaces of the housing (1) are provided with multiple cable holes (13) at positions opposite to the cable tray (2), and the cable holes (13) are connected to the mounting cavity (11).

5. A low-voltage distribution box according to claim 4, characterized in that: The front surface of the box (1) is fixedly connected to the box door (4) by a hinge at the position opposite to the mounting cavity (11).

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