We provide customized fan solutions for the heat dissipation needs of inverters,reactors and other equipment. The explosion-proof centrifugal fan for high-voltage inverters can operate stably at an altitude of more than 4,000meters above sea level; the axial fan for photovoltaic inverters adopts anticorrosive coating,which is suitable for the harsh environments such as salt spray and sand and dust. The innovatively developed intelligent temperature-controlled fan system precisely controls the airflow through PWM speed control technology,and controls the temperature fluctuation of IGBT modules to ±5℃,which ensures the reliable operation of electric equipment in rail transportation,new energy vehicles and other fields.