Low-voltage draw-out type switch cabinet

Abstract

The invention relates to the technical field of low-voltage draw-out type switch cabinets, and discloses a low-voltage draw-out type switch cabinet which comprises a box body. The box body is providedwith a through cavity connecting a front portion and a rear portion, a circuit wiring board sleeves a front side of an inner cavity of the through cavity, and a back surface of the box body is detachably connected with a protective cover. In the invention, the box body is improved; a left side plate and a right side plate are provided with a flow guide cavity and an air inlet inner cavity correspondingly; an air inlet groove and the flow guide cavity which are connected with each other are arranged in an inner wall of an installation drawer; thus, when air enters the air inlet inner cavity from an inner portion of a heat exchange base, the air can be divided into spaces isolated by different isolation plates; independent heat dissipation operation is performed on internal electrical components; and when an air flow of the heat exchange base passes through the flow guide cavity, due to a fact that the flow guide cavity is open, the inner air flow flows upwards, a speed of the air flowis larger than that of the air flow exhausted into the installation drawer in the air inlet groove, and the inner air with heat is rapidly guided out so that a heat dissipation effect and heat dissipation efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of low-voltage withdrawable switchgear, in particular to a low-voltage withdrawable switchgear. Background technique [0002] The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. During the process, switch, control and protect electrical equipment; the components in the switchgear are mainly composed of circuit breakers, isolating switches, load switches, operating mechanisms, transformers and various protection devices. [0003] The withdrawable switchgear will be installed in a modular manner. During the installation process, the installation steps of installing the wiring are installed from top to bottom or from bottom to top, and then the equipment is installed on the line of the equipment, and then the electrical components instal...

AI Technical Summary

Problems solved by technology

[0003] The withdrawable switchgear will be installed in a modular manner. During the installation process, the installation steps of installing the wiring are installed from top to bottom or from bottom to top, and then the equipment is installed on the line of the equipment, and then the electrical components installed in the subsequent installation of the line are installed. The efficiency of this installation is low, and the installation space is limited, the installation is difficult, and in the process of routing, due to the types and angles of internal components, the routing is very complicated, and the efficiency of internal heat dissipation is due to many messy components. The wiring will also be affected. When there is a short circuit inside and it is difficult to repair and the heat dissipation effect of the heat dissipation mechanism is poor.

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