CN203466551U

CN203466551U - Cable branch box

Info

Publication number: CN203466551U
Application number: CN201320466738.8U
Authority: CN
Inventors: 胡爱杰; 阎富荣
Original assignee: TIANJIN EXCELLENCE LEGEND TECHNOLOGY Co Ltd
Current assignee: TIANJIN EXCELLENCE LEGEND TECHNOLOGY Co Ltd
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2014-03-05
Anticipated expiration: 2023-07-30

Abstract

The utility model provides a cable branch box, which comprises a box body, an incoming line wiring board, an outgoing line wiring board, copper busbars and a circuit breaker, wherein the incoming line wiring board, the outgoing line wiring board, the copper busbars and the circuit breaker are arranged in the box body, the upper end of the box body is provided with a ventilation hole, the ventilation hole is provided with an exhaust fan, the exhaust fan is fixed on the box body through a bracket, insulating bus support frames are vertically fixed at both sides of the box body, the insulating bus support frames are provided with copper bars therebetween, the incoming line wiring board, the circuit breaker and the outgoing line wiring board are sequentially hooked on the copper bars, and the incoming line wiring board and the outgoing line wiring board are both provided with cable connection terminals. Incoming lines and outgoing lines of the cable branch box both adopt independent wiring boards, an incoming line unit and an outgoing line unit are both located in a closed structure without an electrified part being exposed, thereby being good in safety performance. The copper bars need not to be bent when installed, and a requirement for the precision of the copper bars is low. The cable branch box is simple in structure, easy to install and good in heat dissipation effect, and has wide practicability.

Description

A kind of cable branch box

Technical field

The utility model belongs to cable assembly field, especially relates to a kind of cable branch box.

Background technology

Development along with power distribution network cable process, when capacity little independently meet distribution and concentrate time, can use cable branch box to carry out the connection of cable multi-branch, because feeder pillar directly Dui Mei road operates, only as cable branch, use, the Main Function of cable branch box is by cable distribution or switching.

In the structural design of existing cable feeder pillar, generally all adopt the direct-connected mode of copper bus-bar, between each components and parts, utilize its electric clearance of bending Assurance of Size of copper bus-bar.But because cable branch box box sizes is less, main busbar tie point is more, difficult wiring, complex structure, installation difficulty is larger, and multiloop cable branch box security performance is not high.

In addition, existing cable branch box does not have special ventilation equipment, and in case, hot-air cannot unimpededly be discharged, and will certainly make space temperature raise, and affects its security performance.

Summary of the invention

Problem to be solved in the utility model is to provide a kind of cable branch box, solves traditional cable feeder pillar complex structure, and installation difficulty is large, difficult wiring, and radiating effect is not obvious, the problem that security performance is not high.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cable branch box, comprise casing and be arranged on the inlet wire terminal block in casing, outlet terminal block, copper bus-bar and circuit breaker, it is characterized in that: the upper end of described casing is provided with ventilation hole, on described ventilation hole, be provided with ventilating fan, described ventilating fan is fixed on described casing by support, described casing both sides are vertically fixed with isolated bus bracing frame, three copper bus-bars have been arranged in parallel between described isolated bus bracing frame, on described copper bus-bar, be mounted with successively described inlet wire terminal block, described circuit breaker and described outlet terminal block, on described inlet wire terminal block and described outlet terminal block, be equipped with cable splicing ear.

Further, described circuit breaker, described inlet wire terminal block and described outlet terminal block are all articulated on described copper bus-bar by wire clamp.

Further, parallelly on described copper bus-bar be mounted with four described circuit breakers.

Further, described copper bus-bar peripheral hardware is useful on the sealing copper bus-bar insulating shield of the described copper bus-bar of sealing.

Further, described cable splicing ear is provided with connecting hole, and described connecting hole is hexagon.

Advantage and the good effect that the utlity model has are: inlet wire and outlet all adopt independently terminal block, and wiring easily; Wire inlet unit and outgoing line unit are all in enclosed construction, and without the live part exposing, security performance is good; Copper bar is without bending, low to the required precision of copper bar, simple in structure when mounted, installs easily; Ventilating fan on casing reduces temperature in casing, and good heat dissipation effect, has practicality widely.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model;

Fig. 2 is rearview of the present utility model.

In figure:

1, casing 2, ventilation hole 3, ventilating fan

4, support 5, isolated bus bracing frame 6, copper bus-bar

7, inlet wire terminal block 8, circuit breaker 9, outlet terminal block

10, cable splicing ear 11, connecting hole 12, wire clamp

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As Fig. 1, shown in Fig. 2, a kind of cable branch box, comprise casing 1 and be arranged on the inlet wire terminal block 7 in casing 1, outlet terminal block 9, copper bus-bar 6 and circuit breaker 8, the upper end of casing 1 is provided with ventilation hole 2, on ventilation hole 2, be provided with ventilating fan 3, ventilating fan 3 is fixed on casing 1 by support 4, casing 1 both sides are vertically fixed with isolated bus bracing frame 5, three copper bus-bars 6 have been arranged in parallel between isolated bus bracing frame 5, on copper bus-bar 6, be mounted with successively inlet wire terminal block 7, circuit breaker 8 and outlet terminal block 9, on inlet wire terminal block 7 and outlet terminal block 9, be equipped with cable splicing ear 10.

Preferably, circuit breaker 8, inlet wire terminal block 7 and outlet terminal block 9 are all articulated on copper bus-bar 6 by wire clamp 12.

Preferably, parallelly on copper bus-bar 6 be mounted with four circuit breakers 8.

Preferably, copper bus-bar 6 peripheral hardwares are useful on the sealing copper bus-bar insulating shield of the described copper bus-bar of sealing.

Preferably, cable splicing ear 10 is provided with connecting hole 11, and connecting hole is hexagon.

The rated voltage 400V of cable branch box of the present utility model, insulation voltage 800V, rated current is 800A to the maximum, and short time withstand current is 50kA, and degree of protection is IP67; Module is divided into 500A, 530A, 570A, 630A by current class, and it is the circuit breaker of supporting 500A, 530A, 570A, 630A respectively.This cable branch box is selected the casing of glass-fiber reinforced polycarbonate composite material, has solved metal cabinet corrosion, electric leakage, the difficult problem such as coarse.

The utility model has the advantages that inlet wire and outlet all adopt independently terminal block, wiring easily; Wire inlet unit and outgoing line unit are all in enclosed construction, and without the live part exposing, security performance is good; Copper bar is without bending, low to the required precision of copper bar, simple in structure when mounted, installs easily; Ventilating fan on casing reduces temperature in casing, and good heat dissipation effect, has practicality widely.

Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.

Claims

1. a cable branch box, comprise casing and be arranged on the inlet wire terminal block in casing, outlet terminal block, copper bus-bar and circuit breaker, it is characterized in that: the upper end of described casing is provided with ventilation hole, on described ventilation hole, be provided with ventilating fan, described ventilating fan is fixed on described casing by support, described casing both sides are vertically fixed with isolated bus bracing frame, three copper bus-bars have been arranged in parallel between described isolated bus bracing frame, on described copper bus-bar, be mounted with successively described inlet wire terminal block, described circuit breaker and described outlet terminal block, on described inlet wire terminal block and described outlet terminal block, be equipped with cable splicing ear.

2. cable branch box according to claim 1, is characterized in that: described circuit breaker, described inlet wire terminal block and described outlet terminal block are all articulated on described copper bus-bar by wire clamp.

3. cable branch box according to claim 1, is characterized in that: parallelly on described copper bus-bar be mounted with four described circuit breakers.

4. cable branch box according to claim 1, is characterized in that: described copper bus-bar peripheral hardware is useful on the sealing copper bus-bar insulating shield of the described copper bus-bar of sealing.

5. cable branch box according to claim 1, is characterized in that: described cable splicing ear is provided with connecting hole, and described connecting hole is hexagon.