Building block type terminal box

Abstract

The invention discloses a building block type terminal box which comprises a base, a terminal box housing, a building block type support, a terminal row, a dust removal device and a dehumidifier. The terminal box housing is fixed to the upper end of the base. An openable-closeable intelligent movable door is arranged on the side face of the terminal box housing, a heat dissipation groove opening is formed in the top of the terminal box housing, and an obliquely arranged shading cover is fixedly connected to the upper end of the terminal box housing. The building block type support comprises a main frame and multiple branch frames, wherein the lower end of the main frame is fixed to the bottom of the terminal box housing, multiple groups of outward protruding slideways are formed in one inner side of the main frame at intervals from top to bottom, and multiple groups of recessed slide grooves corresponding to the slideways in position are formed in other inner side. Concave portions matched with the slideways are formed in the outer sides of the branch frames, convex portions matched with the slide grooves are arranged on the other outer side of each branch frame, and the concave portions are mutually matched with the convex portions. The terminal row is arranged in at least one branch frame through bolts.

Description

technical field [0001] The invention relates to a building block type terminal box, which belongs to the technical field of power supply equipment. Background technique [0002] The outdoor terminal box of the substation (hereinafter referred to as the outdoor terminal box) is an important carrier for the operation and control of the primary equipment and the secondary cable transfer. It usually adopts the method of separate cabinets for each interval and distributed installation. Most of the traditional outdoor terminal boxes are made of iron plate. In order to meet the anti-corrosion requirements of indoor and outdoor environments, the surface is usually painted with paint; this process requires a lot of manpower and material resources, and cannot meet the anti-corrosion requirements of long-term operation. , rust phenomenon, and damage to the hinge of the terminal box door caused by anti-corrosion and corrosion, and the problem of poor sealing of the box door occurs from ...

AI Technical Summary

Problems solved by technology

Most of the traditional outdoor terminal boxes are made of iron plate. In order to meet the anti-corrosion requirements of indoor and outdoor environments, the surface is usually painted with paint; this process requires a lot of manpower and material resources, and cannot meet the anti-corrosion requirements of long-term operation. , rust phenomenon, and damage to the hinge of the terminal box door caused by anti-corrosion and corrosion, and the problem of poor sealing of the box door occurs from time to time. In recent years, although the stainless steel terminal box has been adopted to solve the problems of anti-corrosion and rust, the door is not sealed serious problem still exists

The box body and terminal row of the outdoor terminal box are fixedly connected to the installation base. During the construction of maintenance and replacement of the terminal box, the maintenance personnel can only work on the internal equipment of the terminal box from the cabinet door, and the on-site operation is affected by human factors. The impact is relatively large. The terminal box is inconvenient due to the space limitation. The maintenance personnel need to squat beside the terminal box for a long time and bend over to work. The maintenance personnel are prone to irritability and anxiety, which brings safety hazards to maintenance. The reason is to distract the attention of the inspection personnel and reduce the safety and work efficiency of maintenance and construction

In addition, during the long-term operation of the outdoor terminal box, under the action of humid air and rain erosion, condensation hazards are extremely prone to occur, which leads to corrosion of the connecting pieces and screw holes in the terminal box, further causing secondary damage to the terminal box. The contact failure and short circuit phenomenon of the terminal will eventually lead to the failure or malfunction of the relay protection of the electrical equipment in the terminal box, which will bring safety hazards to the normal operation of the power supply network

The box body of the outdoor terminal box is usually made of steel plate, and the cabinet door is designed to open front and back; the terminal box is generally designed so that the box body and the terminal block are fixed on the base, and the space for maintenance and construction is very limited. Remove or replace the terminals on the terminal block. Wiring is very inconvenient. When replacing the terminal box, it is necessary to first dismantle the terminals in the terminal block one by one, and then draw out the cables, remove the terminal block, and remove the terminal box. This increases the difficulty of installing and transforming the secondary system and reduces the work efficiency

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