A power distribution box

Abstract

The invention discloses a power distribution box. The power distribution box comprises a box shell and a box door. One end of the box door is rotatably connected with one end of the box shell througha hinge. A component installation plate and a heat dissipation fire extinguishing device 4 are arranged in the box shell. An inner side of the component installation plate is fixed to an inner wall ofthe box shell through a connecting column, and the heat dissipation fire extinguishing device 4 is located on the inner side of the component installation plate. In the invention, components used forthe distribution box are installed on the component installation plate. When a temperature in the distribution box is too high, cold air is effectively exhausted through a cold air heat dissipation component so that efficient cooling is achieved. When a fire disaster is caused due to a fact that a temperature is too high, the fire disaster on the component installation plate can be effectively extinguished through the heat dissipation fire extinguishing device at the moment, and component damages are reduced.

Description

technical field [0001] The invention relates to the technical field of power distribution boxes, in particular to a power distribution box. Background technique [0002] The power distribution box, also known as the power control box, is a kind of distribution box. The power distribution box is divided into the power distribution box and the lighting distribution box, which is the final equipment of the power distribution system. Power distribution box is assembled in closed or semiclosed metal safe by electrical wiring requirement by switchgear, measuring instrument, protective device and auxiliary equipment or on screen width, forms low-voltage distribution equipment. [0003] The inside of the power distribution box is composed of electrical components and wires and cables. Most of the problems in the existing power distribution cabinet are because the temperature in the cabinet is too high, which leads to the failure of the electrical components to dissipate heat in tim...

AI Technical Summary

Problems solved by technology

[0003] The inside of the power distribution box is composed of electrical components and wires and cables. Most of the problems in the existing power distribution cabinet are because the temperature in the cabinet is too high, which leads to the failure of the electrical components to dissipate heat in time, which causes fires. Both heat dissipation devices and fire extinguishing devices are installed, but the heat dissipation devices and fire extinguishing devices work independently and are controlled by two separate systems. The cost of installation and control is relatively high, and the internal structure of the existing power distribution cabinet is basically a rectangle. Smaller, installing heat dissipation device and fire extinguishing device at the same time will increase the density of internal components, and the heat dissipation effect is not good, and most of the existing heat dissipation devices use fans to blow heat to dissipate heat. The low efficiency will cause the temperature of the electrical components in the deep part of the cabinet to drop slowly, which will cause the internal components to be damaged by the high temperature and cause losses. For this reason, we propose a power distribution box

Images