43results about How to "Play a heat dissipation function" patented technology

A pressure relief top cover of an electrical cabinet body comprises a top cover. The top cover is provided with a plurality of through holes connected with an electrical cavity in the electrical cabinet body, and the upper ends of the through holes are provided with cover plates with one ends connected to the upper ends of the through holes through rotating shafts and covering the through holes. The air-permeable gap has the advantages that the air-permeable gap has the functions of ventilation and heat dissipation during normal work, rain and water can be effectively prevented, and when the internal pressure exceeds a certain value, the cover plate is burst open by the pressure, and the pressure is relieved; and when the pressure recovers, the cover plate automatically returns, the structure is simple, and the safety performance is good.