Capacitor internal explosion detection device

The utility model relates to a capacitor internal explosion detection device. The capacitor internal explosion detection device comprises a voltage change detection unit and a processor U9; the voltage change detection unit is used for detecting the voltage change value of a capacitor CX to be aged, and comparing the voltage change value with a preset voltage change threshold value, and transmitting a voltage sudden change signal to the processor U9 when the voltage change value is larger than the voltage change threshold value; the processor U9 is used for outputting a prompting signal for indicating a capacitor internal explosion according to the voltage sudden change signal. The capacitor internal explosion detection device of the utility model can quickly and accurately detect internal explosions or sparks occurring in the capacitor in an aging waiting process of the capacitor.