Auxiliary air intake device for internal ventilation of power distribution cabinet

Abstract

The invention discloses an auxiliary air intake device for ventilation inside a power distribution cabinet, relates to the technical field of power distribution cabinets, and solves the problem that the local wind speed of the cooling fan in the existing power distribution cabinet is relatively large, and the large air flow will cause the circuit and The circuit of the contact part of the electrical appliance is used to ignite, and the external air will enter through the gap and the air inlet, which is easy to bring in dust, including the outer shell; the top of the outer shell is fixedly connected with a group of the drive motors; A set of drive shafts are rotatably connected to the left and right side walls of the outer shell; multiple sets of air deflectors are rotatably connected to the left and right inner sides of the outer shell; Wind drive shaft. This device effectively avoids the problem of the circuit sparking due to the large airflow at the contact part of the circuit and the electrical appliance, and at the same time maintains the same air pressure inside and outside the box, effectively avoiding the low air pressure inside the power distribution cabinet to cause gaps or air intake at the air inlet The problem of easy entry of dust.

Description

technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to an auxiliary air intake device used for ventilation inside the power distribution cabinet. Background technique [0002] Power distribution cabinets are often used in electrical engineering. The electrical components will heat up during work. If the electrical components are overheated, the electrical components will be burned out. In order to cool the electrical components, a cooling fan is generally installed on the power distribution cabinet. Cooling speed. [0003] For example, application number: CN201610505485.9 The 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; the bottom of the cabinet body is formed with a middle height and two sides. Low slope plate; the lower part of the rear cabinet plate in the cabin...

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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