High-power LED unpowered liquid cooling heat dissipation device and control method thereof

The invention provides a high-power LED unpowered liquid cooling heat dissipation device and a control method thereof, and the device comprises a heat absorption body which is fixedly provided with a high-power LED light source and absorbs heat; the two ends of the heat dissipation body are communicated with the two ends of the heat absorption body through pipelines respectively, and the heat dissipation body and the heat absorption body form a loop through the pipelines; the loop is filled with a liquid working medium dissolved with gas; the circulating power of the liquid working medium dissolved with the gas in the loop is at least provided by the separation and dissolution processes of the gas; according to the invention, part of gas is dissolved in the working medium, the circulating power is mainly caused by gas precipitation and dissolution, the generated density difference is larger than the density difference generated only by temperature, the circulating power is large, the liquid flow rate is high,