Ventilation device for outdoor switch

Abstract

The invention provides a ventilation device for an outdoor switch. The ventilation device comprises a shell which is divided into an upper shell, a middle shell and a lower shell. The middle shell is provided with grooves at two sides. The middle part of the upper shell is provided with a connection hole. The upper shell is provided with vertical columns at two sides of the upper shell. A ventilation cavity is divided into a U-shaped upper cavity and a lower cavity. The ventilation cavity is a maze type sealed structure. The end part of the lower shell is provided with an air inlet, and a filtering layer is arranged between the air inlet and the lower cavity. According to the ventilation device, the maze type sealed structure is employed, the exchange of hot and cold air between switch equipment and an environment can be realized, the temperature difference between the internal part of a switch equipment cabinet and the environment is eliminated, the metal material corrosion and insulation intensity decrease caused by condensation possibly caused by the temperature sudden change in the switch equipment are avoided, a filter layer is arranged between an inlet and the lower cavity, the water molecules in the air can be effectively filtered, and the operation safety of the switch equipment is protected.

Description

technical field [0001] The invention relates to a switch part, in particular to a ventilation device for an outdoor switch. Background technique [0002] With the continuous increase of power demand, the load on power transmission equipment is increasing, and the damage rate of more and more power equipment is rising linearly, which affects the electricity consumption of the majority of residents and brings inconvenience to people's lives. Most of the power equipment is used outdoors. Many outdoor power equipment are corroded by rainwater. The perennial rainwater corrosion causes the short circuit of the cable equipment, and the rainwater in the power equipment enters to form condensation. The formed condensation causes the internal insulation to drop and induces a single phase to ground short circuit. , It is easy to develop long arc light and cause phase-to-phase short circuit accidents, resulting in huge economic losses, and also brings inconvenience to the development of...

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of power demand, the load on power transmission equipment is increasing, and the damage rate of more and more power equipment is rising linearly, which affects the electricity consumption of the majority of residents and brings inconvenience to people's lives. Most of the power equipment is used outdoors. Many outdoor power equipment are corroded by rainwater. The perennial rainwater corrosion causes the short circuit of the cable equipment, and the rainwater in the power equipment enters to form condensation. The formed condensation causes the internal insulation to drop and induces a single phase to ground short circuit. , It is easy to develop long arc light and cause phase-to-phase short-circuit accidents, causing huge economic losses, and also brings inconvenience to the development of industrial enterprises, affecting the economic benefits of enterprises

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