Since the advent of heat pipes, a new development has been made in the cooling system of power electronic devices. No matter what kind of heat dissipation method, the final heat dissipation medium is air, and the others are connected in the middle. Air natural convection cooling is the most direct and convenient way, and heat pipes rapidly expand the application range of self-cooling. Because the heat pipe self-cooling heat dissipation system does not need fans, no noise, maintenance-free, safe and reliable, the heat pipe air cooling or even self-cooling can replace the water cooling system, saving water resources and related auxiliary equipment investment. In addition, heat pipe heat dissipation can concentrate or even seal the heat-generating parts, and move the heat-dissipating part to the outside or far away, which can prevent dust, moisture, and explosion, and improve the safety, reliability and application scope of electrical equipment.
