Patent attributes
An electric clamping device includes: a main body; a clamping unit, a driving unit, a control unit, a carrier, a restoration spring and a triggering unit. The clamping unit clamps two sides of a mobile phone. When no external pressure is applied on the carrier, the restoration spring retains the carrier at its initial position such that pressing a bottom of the mobile phone against the carrier causes limited downward movement of the carrier with respect to the main body and results in transmitting a signal by triggering the trigger unit to the control unit and activating the driving unit, thereby driving the clamping unit from an initial position to an open position such that the two opposite sides of the mobile phone is clamped when the clamping unit retrieves to the initial position by virtue of a spring force.
