The invention relates to a PC-class automatic
changeover switch device with an
energy storage mechanism. The device comprises a base, a
contact system which is arranged on the base, the
energy storage mechanism which is in transmission connection with the
contact system and a
drive motor which is in transmission connection with the
energy storage mechanism, wherein the
drive motor is fixed on the base through a motor support; the energy storage mechanism comprises an energy storage support unit, an energy storage gear, an energy storage
handle, an energy storage spring
assembly and an energy storage
cam, wherein the energy storage support unit is fixedly connected to the motor support; the energy storage gear is arranged in the energy storage support unit and is in transmission connection with the
drive motor; the energy storage
handle which is arranged above the energy storage gear and the bottom of the energy storage
handle which is engaged with the energy storage gear; the energy storage spring
assembly cooperates with the energy storage gear; and the energy storage
cam is coaxial to the energy storage gear, is arranged at the outer side of the energy storage support unit and is in transmission connection with the
contact system. Compared with the prior art, the device has simple and compact overall structure and convenient
processing and manufacturing, and the energy storage mechanism is provided, so that when the automatic
changeover switch rotates, the phenomenon of clamping stagnation or failed linkage cannot occur, and the device is safe and reliable.