Moving device, driving box having same and air conditioner

A moving device, a driving box having the same and an air conditioner. The moving device comprises an upper bracket (100) and a lower bracket (200) that move relative to each other. A first ball structure (300) is arranged on the upper bracket (100) and/or the lower bracket (200). A ball in the first ball structure is in contact with the upper bracket (100) and the lower bracket (200). The upper bracket (100) and the lower bracket (200) move relative to each other by means of the ball in the first ball structure. By arranging the first ball structure on the upper bracket and/or the lower bracket in the moving device, the sliding friction between the upper bracket and the lower bracket is changed into rolling friction by means of rotation of the ball in the first ball structure, so that the friction coefficient and the friction resistance are reduced. The problems of high probability of producing noise and poor stability of the existing moving device are effectively solved.