Heat dissipation power box and manufacturing method thereof

Abstract

The invention discloses a heat dissipation power box and a manufacturing method thereof. The heat dissipation power box comprises a power box shell and a heat dissipation cylinder, wherein two ends ofthe heat dissipation cylinder are fixedly connected onto the power box shell through bolts respectively; fans are installed at two ends of the heat dissipation cylinder respectively; two sides of theheat dissipation cylinder are adhered with one side of a heat conducting ceramic plate through heat conducting silica gel respectively; the other side of the heat conducting ceramic plate is fixed onthe back of an electric appliance fixed plate through bolts; and the edge of the electric appliance fixed plate is fixedly connected onto the inner wall of the power box shell through welding. According to the heat dissipation power box, the internal heat of the power box can be quickly conducted onto the heat dissipation cylinder through the heat conducting ceramic plate, and under the effect ofthe fans, a cooling airflow flows in an air outlet passage from the interior of the heat dissipation cylinder, the heat is quickly exhausted, the cooling airflow does not pass through the interior ofthe power box, dust is avoided from being taken into the power box to influence the equipment, the operation stability of the power box is facilitated, and heat dissipation fins are arranged on the inner wall of the air outlet passage, so that the heat dissipation rate can be further improved.

Description

technical field [0001] The invention belongs to the technical field of power boxes, and in particular relates to a heat dissipation power box and a manufacturing method thereof. Background technique [0002] The power distribution 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. During the operation of the power box, the internal electrical appliances will generate heat, which needs to be dissipated in time. [0003] For example, the patent application number CN201720954521.X discloses a power box for power distribution, including a power box body, and the top of the power box body...

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Problems solved by technology

[0004] However, the above-mentioned scheme has the following defects in use: because the cooling air directly enters the inside of the power box, although the dust-proof net is installed, it still cannot thoroughly filter the dust in the air. Contact with dust will affect the operation of precision equipment and is not conducive to the stability of the power box

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