How to dissipate the explosion-proof power distribution control box

How to dissipate the explosion-proof power distribution control box?

1. Since the environment used in the explosion-proof control box has more gas or dust, this requires the explosion-proof control box to be sealed and explosion-proof, so its outer casing cannot be used with ordinary casings. It is necessary to use standard explosion-proof chambers and all the explosion-proof control boxes. The components are housed in an explosion-proof chamber. Open an observation window on the explosion-proof door, mount the display part on it, and install the start, stop and speed control on the explosion-proof door.

2, explosion-proof power distribution control box heat dissipation problem Because all components of the explosion-proof power distribution control box are installed in the explosion-proof explosion-proof cavity, the air can not flow, the heat dissipation problem becomes the key problem to be solved in the explosion-proof power distribution control box. Here we have adopted a new heat dissipation technology - heat pipe cooling technology.

(1) Heat pipe technology principle Heat pipe is a heat transfer element with extremely high thermal conductivity. It transfers heat by evaporation and condensation of working fluid in a fully enclosed vacuum tube. It has extremely high thermal conductivity, good isothermality and cold. The heat transfer area on both sides of the heat can be arbitrarily changed, the heat can be transferred at a long distance, and the temperature can be controlled. The heat exchanger composed of the heat pipe has the advantages of high heat transfer efficiency, compact structure, and small fluid resistance.

(2) Inverter structure layout We designed the main circuit as a large unit, installed in the rear wall of the rectangular explosion-proof cavity, and the rear wall is joined with the heating element such as IGBT module and rectifier module through an excessive heat sink, and the outer wall of the explosion-proof casing is welded. The trough radiator, the excess radiator and the trough radiator are connected by a heat pipe. The heat generated inside the inverter is dissipated through the radiator heat sink slot on the rear wall of the explosion-proof chamber.

This solves the heat dissipation problem of the explosion-proof power distribution control box.