Head shaking structure of warmer

The utility model relates to a head shaking structure of a warmer, comprising a warmer base, a rotating part, a driving cam and a driving motor, wherein the driving cam is arranged between the warmer base and the rotating part, the driving motor is arranged at the top of the rotating part, an output shaft o the driving motor passes through the rotating part and is inserted to an installing hole of the driving cam, a driving shaft of the driving cam is arranged in a slide way arranged on the base, a slide positioning post arranged on the base is installed in a rotary slide way arranged on the rotating part, and a rotary central shaft arranged on the rotating part is sheathed on a rotary central sleeve arranged on the base. By adopting the cam to drive the rotating part to move, the head shaking structure saves the space size of the product, increases the lightness of appearance, improves the stability and ensures to pass 750 thousand of head shaking tests. Besides, as the cam and the rotating part as well as the rotating part and the base slide way are not fixed by the screws, the head shaking structure improves the assembling efficiency and reduces the cost.