LED floor traffic light with heat dissipation and cold protection by air circulation method

摘要

The present invention relates to an LED floor signal light having a heat dissipation and cold protection function by an air circulation method, and in particular, an upper case; A PCB installed inside the upper case, mounted with a plurality of LED devices, and provided with an air vent spaced apart from each other by a predetermined distance; An air circulation tube that connects between the air vents of the PCB but is connected through a space under the PCB, and supplies high-temperature air from the upper side of the PCB to the lower side of the PCB and then back to the upper side of the PCB; A heat sink for exchanging heat with the air circulation tube; A lower case coupled to the upper case; comprises, the upper part of the hot PCB lowers the temperature, and the lower part of the cold PCB can increase the temperature, so that heat dissipation and cold protection are given according to the season, so that a malfunction can be prevented. There is an effect.