Mine explosion-proof frequency conversion device with low switching frequency

The utility model discloses a mine explosion-proof frequency conversion device with a low switching frequency, belonging to the technical field of mining equipment. The mine explosion-proof frequency conversion device comprises a three-phase AC(Alternating Current) power supply, a three-phase transformer, a three-phase reactor, an insulated gate bipolar transistor, an asynchronous cage motor, a drive circuit, a control center, a rectifier, an inverter, a voltage detection device, a current detection device, and a temperature detection device; wherein, the three-phase AC power supply is connected with the three-phase transformer, the three-phase transformer is connected with the rectifier through the three-phase reactor, the rectifier is connected with the inverter, the inverter is connected with the asynchronous cage motor, and the rectifier is connected with the control center through the insulated gate bipolar transistor. The mine explosion-proof frequency conversion device of the utility model has the beneficial effects of reducing switching loss, reducing heat generation, and realizing explosion-proof requirements of the frequency conversion device.