Self-cooling power distribution box for power engineering substation

Abstract

The invention proposes a self-cooling power distribution box for a power engineering substation. The power distribution box comprises a box body, wherein the box body comprises an inner box body and an outer box body, the outer box body is arranged outside the inner box body, a temperature sensor is arranged in the inner box body, a first ventilation passage is formed between a bottom end of the inner box body and a bottom end of the outer box body, a plurality of second ventilation passages are formed between a side wall of the inner box body and a side wall of the outer box, a third ventilation passage is formed between a top end of the inner box body and a top end of the outer box body, a fan is arranged in the third ventilation passage, an air inlet is arranged in the bottom end of theouter box body and communicates with the first ventilation passage, an air outlet is arranged in the top end of the outer box body and communicates with the second ventilation passages, a first ventilation hole is formed in the bottom end of the inner box body and communicates with an air inlet passage, a plurality of ventilation holes are formed in the side wall of the inner box body and communicate with the second ventilation passage, and a self-adjustment ventilation piece is arranged at the second ventilation holes. By the power distribution box, heat in the power distribution box can betimely dissipated to air, so that the temperature in the power distribution box is reduced, and a favorable cooling effect is achieved.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a self-radiating distribution box for a power engineering substation. Background technique [0002] 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 box. During normal operation, the circuit can be connected or disconnected by means of a manual or automatic switch. The distribution box has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, not limited by the site, widely used, stable and reliable operation, high space utilization rate, less land occupation and environmental protection effect. [0003] Because the existing distribution box is in a sealed state, the heat dissipation is not good, it is easy ...

AI Technical Summary

Problems solved by technology

[0003] Because the existing distribution box is in a sealed state, the heat dissipation is not good, it is easy to make the temperature in the box exceed the normal operating temperature of the electrical equipment in the box, which affects the service life of the electrical equipment, and the sealed distribution box makes observation inconvenient and inconvenient data recording

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