Cable branch box

By introducing an insulating shell and a ventilated groove structure into the cable branch box, the problems of inconvenient cable installation and safety hazards are solved, enabling rapid identification and safe installation. It also has flame-retardant, corrosion-resistant, and anti-aging properties, and provides good ventilation.

CN224153923UActive Publication Date: 2026-04-21ZHEJIANG ZHULANG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHULANG ELECTRIC CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing cable branch boxes lack internal insulation partitions, and the entry and exit of cable harnesses are not obvious, which makes installation inconvenient and poses safety hazards.

Method used

A cable branch box was designed, which adopts an insulated shell and a ventilated groove structure, combined with a threaded connection and a locking body design, to achieve rapid cable identification and safe installation. It also has flame-retardant, corrosion-resistant, and anti-aging properties, while providing good ventilation.

Benefits of technology

It enables rapid and safe installation and differentiation of cables, ensures insulation protection and ventilation of cable branch boxes, and improves cable installation efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of cable boxes, and particularly discloses a cable branch box, which comprises a box body and assembly blocks, the assembly blocks are respectively fixed on two sides outside the box body, a door plate is hinged on the right side of the rear end inside the box body, a lock body is arranged between the left side of the door plate and the box body, and two groups of assembly frames are fixed at the front end of the door plate. A first hole is formed in the assembling frame, and a first bolt is in threaded connection between the first hole and the door plate. According to the utility model, the two groups of assembling frames are fixed at the front end of the door plate by using the bolts through the holes, then the fixing plates are arranged between the adjacent assembling frames by virtue of the brackets, and then the yellow, green, red and basket insulating shells are sequentially arranged in the four groups of fixing plates, so that the requirements of flame retardance, corrosion resistance and aging resistance are met; the cable branch can help people to quickly distinguish the installation position where the cable should be inserted, is convenient to disassemble and assemble, saves the time of an electrician, and solves the problem that the cable branch is inconvenient to install.
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Description

Technical Field

[0001] This utility model relates to the field of cable box technology, specifically a cable branch box. Background Technology

[0002] As the name suggests, a cable box is a housing for assembling cables. Its interior is divided into spaces or mounting frames according to the thickness and number of cables, so that the cables can be inserted and fixed in the box. It also makes it easy for people to identify different cable bundles and insert them accordingly, while providing protection.

[0003] However, in the past, the cable distribution boxes lacked insulation barriers to protect the entry and exit of the wire harnesses and cables, and the internal boundaries were not obvious. To find different plug-in switches, one had to try them one by one, which was not only unsafe but also time-consuming. If the circuit was connected incorrectly, it would also cause unnecessary trouble.

[0004] Now, a new type of cable branch box is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a cable branch box to solve the problem of inconvenient cable branch installation mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable branch box, comprising a box body and assembly blocks, with assembly blocks fixed on both sides of the outer side of the box body, a door panel hinged to the right side of the rear end of the box body, and a lock body installed between the left side of the door panel and the box body, two sets of assembly brackets fixed to the front end of the door panel, and a hole provided inside the assembly bracket, with a bolt threadedly connected between the hole and the door panel, four sets of brackets longitudinally fixed to the front end of the assembly brackets, a fixing plate horizontally fixed between the brackets, and circular grooves provided at the top and bottom of the front of the fixing plate, with an insulating shell fixed inside the circular groove, and a shell fixed between the two sides of the lower part of the box body.

[0007] As a further technical solution of this utility model, a rectangular groove is provided at the bottom of the door panel, and a plate is fixed in the rectangular groove. A screw is threadedly connected to each of the four corners between the plate and the rectangular groove.

[0008] As a further technical solution of this utility model, the diameter of the circular groove is sufficient to accommodate the insulating shell, and the colors of the insulating shell are yellow, green, red and blue from top to bottom.

[0009] As a further technical solution of this utility model, ventilation grooves are arranged longitudinally on both sides of the outer side of the box, and side grooves are respectively provided on the lower side of both sides of the box, and baffles are fixedly connected in the side grooves. Two screws are threadedly connected at the four corners between the baffles and the side grooves.

[0010] As a further technical solution of this utility model, the ventilation groove and the side groove are on the same vertical plane, and the outline of the baffle matches the side groove.

[0011] As a further technical solution of this utility model, a frame is fixed to the top of the outer side of the box, and five sets of busbars are fixed longitudinally at the rear of the inner side of the frame. A handle is fixed to the top of the front end of the outer side of the frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the cable branch box not only makes it easy to distinguish the cable insertion points and achieves ventilation and heat dissipation, but also provides insulation protection;

[0013] (1) An insulating shell is fixed inside the circular groove. Two sets of assembly frames are fixed to the front end of the door panel through holes and bolts. Then, each fixing plate is installed between adjacent assembly frames with the support. Yellow, green, red and blue insulating shells are installed in the four sets of fixing plates in sequence. It has the requirements of flame retardancy, corrosion resistance and anti-aging. It can help people quickly identify the installation place where the cable should be plugged in. It is also convenient to disassemble and assemble, saving electricians' time.

[0014] (2) The ventilation slots are arranged longitudinally on both sides of the outside of the box. The door panel is connected to the box by the lock body on the left side. The door can be opened or closed by rotating the door handle, so that the cable branch box can be opened for maintenance in time. The ventilation slots on the side are arranged at equal intervals, which can allow the box to dissipate the internal heat. The baffle installed in the lower side slot by screws is the same as the plate in the rectangular slot, which is easy to disassemble and install. It can ensure the ventilation effect and facilitate later maintenance. The door panel is also labeled with "State Grid", "95598" and "Stop at High Voltage Danger" to make people aware of the function of the box.

[0015] (3) By fixing a frame to the top of the enclosure, the selection of the copper busbar cross section inside the enclosure needs to ensure that it can withstand the requirements of the rated short-time withstand and peak withstand current recommended in IEC60298. The frame is equipped with five sets of busbars. The N-phase L0 busbar has the same specifications as the three-phase busbar. The PE busbar cross section is not less than 1 / 2 of the phase busbar cross section, which allows the cable to safely enter the enclosure and helps the cable installation from the outside to the inside. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 This is a top view of the frame structure of this utility model;

[0020] Figure 5 This is a front view structural diagram of the fixing plate of this utility model.

[0021] In the diagram: 1. Box body; 2. Assembly block; 3. Door panel; 4. Assembly rack; 5. Hole 1; 6. Bolt 1; 7. Fixing plate; 8. Insulating shell; 9. Circular groove; 10. Bracket; 11. Rectangular groove; 12. Plate; 13. Shell; 14. Screw 1; 15. Lock body; 16. Frame; 17. Handle; 18. Side groove; 19. Baffle; 20. Screw 2; 21. Busbar; 22. Vent groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 An embodiment of this utility model provides: a cable branch box, including a box body 1 and an assembly block 2. The assembly block 2 is fixed on both sides of the outside of the box body 1. A door panel 3 is hinged to the right side of the rear end of the box body 1. A lock body 15 is installed between the left side of the door panel 3 and the box body 1. Two sets of assembly frames 4 are fixed to the front end of the door panel 3. The assembly frame 4 has a hole 5 inside. The hole 5 is threadedly connected to the door panel 3 with a bolt 6. Four sets of brackets 10 are fixed longitudinally to the front end of the assembly frame 4. A fixing plate 7 is fixed transversely between the brackets 10. Circular grooves 9 are provided at the upper and lower parts in front of the fixing plate 7. An insulating shell 8 is fixed inside the circular groove 9. A shell 13 is fixed between the two sides of the lower part of the box body 1.

[0024] A rectangular groove 11 is provided at the bottom inside the door panel 3, and a plate 12 is fixed in the rectangular groove 11. Screws 14 are threaded to the four corners between the plate 12 and the rectangular groove 11. The diameter of the circular groove 9 is sufficient to accommodate the insulating shell 8. The colors of the insulating shell 8 from top to bottom are yellow, green, red and blue.

[0025] Specifically, such as Figure 1 and Figure 2As shown, two sets of assembly frames 4 are fixed to the front end of the door panel 3 through holes 5 and bolts 6. Then, each fixing plate 7 is installed between adjacent assembly frames 4 using brackets 10. Then, yellow, green, red and blue insulating shells 8 are installed in the four sets of fixing plates 7 in sequence. It has the requirements of flame retardancy, corrosion resistance and anti-aging, and can help people quickly identify the installation position where the cable should be plugged in.

[0026] Ventilation grooves 22 are arranged longitudinally on both sides of the outer side of the box 1. Side grooves 18 are provided on the lower side of both sides of the box 1. A baffle 19 is fixedly connected in the side groove 18. Screws 20 are threadedly connected at the four corners between the baffle 19 and the side groove 18. The ventilation grooves 22 and the side grooves 18 are on the same vertical plane. The outline of the baffle 19 matches the side groove 18.

[0027] Specifically, such as Figure 1 and Figure 3 As shown, the door panel 3 is connected to the box 1 via the lock body 15 on the left side. The door can be opened or closed by rotating the door handle, allowing the cable branch box to be opened for maintenance in a timely manner. The ventilation slots 22 on the side are arranged at equal intervals, allowing the box 1 to dissipate internal heat. The baffle 19 installed in the lower side slot 18 by screws 20 is the same as the plate 12 in the rectangular slot 11, which is easy to disassemble and assemble, ensuring ventilation while facilitating later maintenance.

[0028] A frame 16 is fixed to the top of the outer side of the box 1, and five sets of busbars 21 are fixed longitudinally at the rear of the inner side of the frame 16. A handle 17 is fixed to the top of the front side of the outer side of the frame 16.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, the selection of the copper busbar cross-section inside the box needs to ensure that it can withstand the requirements of the rated short-time withstand and peak withstand current recommended in IEC60298. The frame 16 is equipped with five sets of busbars 21. The N-phase L0 busbar has the same specifications as the three-phase busbar. The PE busbar cross-section is not less than 1 / 2 of the phase busbar cross-section, which allows the cable to safely enter the box 1.

[0030] Working principle: In use, this utility model first fixes two sets of assembly frames 4 to the front end of the door panel 3 through the hole 5 and bolts 6. Then, the brackets 10 are used to install each fixing plate 7 between adjacent assembly frames 4. Then, the yellow, green, red, and blue insulating shells 8 are installed in the four sets of fixing plates 7 in sequence. It meets the requirements of flame retardancy, corrosion resistance, and aging resistance, and can help people quickly identify the installation position where the cable should be plugged in. The selection of the copper busbar cross-section inside the box needs to ensure that it can withstand the rated short-time withstand and peak withstand current requirements recommended in IEC60298. The frame 16 is equipped with five sets of busbars 21, and the specifications of the N-phase L0 busbar and the three-phase busbar are as follows. Similarly, the PE section cross-section is not less than 1 / 2 of the phase section cross-section, allowing the cable to safely enter the box 1. The door panel 3 is connected to the box 1 via the lock body 15 on the left side. The door can be opened or closed by rotating the door handle, allowing the cable branch box to be opened for maintenance in a timely manner. The ventilation slots 22 on the side are arranged at equal intervals, allowing the box 1 to dissipate the internal heat. The baffle 19 installed in the lower side slot 18 by screws 20 is the same as the plate 12 in the rectangular slot 11, which is easy to disassemble and install. It can ensure the ventilation effect while facilitating later maintenance. The door panel 3 is also labeled with "State Grid", "95598" and "Stop at High Voltage Danger" on the outside.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cable branch box comprising a box body (1) and a mounting block (2), characterized in that: Assembly blocks (2) are fixed on both sides of the exterior of the box (1). A door panel (3) is hinged to the right side of the rear end of the box (1). A lock body (15) is installed between the left side of the door panel (3) and the box (1). Two sets of assembly racks (4) are fixed to the front end of the door panel (3). A hole (5) is provided inside the assembly rack (4). A bolt (6) is threaded between the hole (5) and the door panel (3). Four sets of brackets (10) are fixed longitudinally to the front end of the assembly rack (4). A fixing plate (7) is fixed horizontally between the brackets (10). A circular groove (9) is provided at the top and bottom of the front of the fixing plate (7). An insulating shell (8) is fixed inside the circular groove (9). A shell (13) is fixed between the two sides of the lower part of the box (1).

2. A cable branch box according to claim 1, characterized in that: A rectangular groove (11) is provided at the bottom inside the door panel (3), and a plate (12) is fixed in the rectangular groove (11). Screws (14) are threadedly connected to the four corners between the plate (12) and the rectangular groove (11).

3. A cable branch box according to claim 1, characterized in that: The diameter of the circular groove (9) is sufficient to accommodate the insulating shell (8), and the colors of the insulating shell (8) from top to bottom are yellow, green, red and blue.

4. A cable branch box according to claim 1, characterized in that: Ventilation grooves (22) are arranged longitudinally on both sides of the outer side of the box (1). Side grooves (18) are provided on the lower sides of both sides of the box (1). A baffle (19) is fixedly connected in the side groove (18). Screws (20) are threadedly connected at the four corners between the baffle (19) and the side groove (18).

5. A cable branch box according to claim 4, characterised in that: The ventilation groove (22) and the side groove (18) are on the same vertical plane, and the outline of the baffle (19) matches the side groove (18).

6. A cable branch box according to claim 1, characterized in that: The top of the outer side of the box (1) is fixed with a frame (16), and five sets of busbars (21) are fixed longitudinally at the rear of the frame (16). A handle (17) is fixed above the front end of the outer side of the frame (16).