Auxiliary air inlet device for internal ventilation of power distribution cabinet

Abstract

The invention discloses an auxiliary air inlet device for internal air exchange of a power distribution cabinet, relates to the technical field of power distribution cabinets, and solves problems thata cooling fan of an existing power distribution cabinet is relatively high in local wind speed, relatively large air flow can cause line sparking at a contact part of a line and an electric appliance, and external air enters from a gap and an air inlet, and dust is easily brought in. The device comprises an outer shell, wherein the top of the outer shell is fixedly connected with a group of driving motors, the interiors of a left side wall and a right side wall of the outer shell are each rotationally connected with a set of driving shafts, the left inner side and the right inner side of theouter shell are each rotationally connected with multiple sets of air deflectors, inner sides of left and right rear portions of the outer shell are each rotationally connected with a set of air guidedriving shafts. The device is advantaged in that the device effectively avoids the problem of line sparking caused by large airflow at the contact part of the line and the electric appliance, maintains consistency of internal and external air pressures of a box body, and effectively avoids the problem that dust easily enters gaps or air inlets due to low internal air pressure of the power distribution cabinet.

Description

technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to an auxiliary air intake device for ventilation inside the power distribution cabinet. Background technique [0002] Power distribution cabinets are often used in electrical engineering. Electrical components will generate heat during work. If the electrical components are overheated, electrical components will burn out. In order to cool down the electrical components, a cooling fan is generally installed on the power distribution cabinet to increase the temperature of the electrical components. Cooling speed. [0003] For example, application number: CN201610505485.9 The present invention discloses a power distribution cabinet, which includes a cabinet body with an opening at the front end, and a cabinet door connected to the front end of the cabinet body through hinges; Low slope board; the lower part of the rear cabinet in the cabinet is located above the m...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an auxiliary air intake device for ventilation inside the power distribution cabinet to solve the problem that the cooling fans of the existing power distribution cabinet proposed in the above-mentioned background technology are generally arranged in a centralized manner, which will cause relatively large local wind speeds and relatively large wind speeds. Atmospheric airflow will cause the circuit and the contact part of the electrical appliance to ignite, and the general cooling fan is generally set in the way of exhaust, which will cause the air pressure in the power distribution cabinet to be lower than the external air pressure during work, and the external air will be Entering through the gaps and air inlets, it is easy to bring in the problem of dust

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