Wireless charger

A wireless charger, comprising:

• a housing made of a front cover and a back cover, an accommodating space formed by the front cover and the back cover, and the back cover having a fastener and a block;
• a fixing unit having a fixing gear, an upper gear rack, a bottom gear rack and a fixing structure, the fixing gear fixing on the block of the back cover, a bottom of the bottom gear rack protruding a supporting member, the upper gear rack and the bottom gear rack mating with the fixing gear, the fixing gear to be rotated by a movement of the upper gear rack and the bottom gear rack, and the fixing structure fixed to the upper gear rack by a spring structure;
• and
• a wireless charging unit comprising an inductive coil, a controlling circuit board, a through hole and a plug hole, the inductive coil electrically connected to the controlling circuit board and disposed in the accommodating space, the fastener disposed through the through hole of the inductive coil to fix the inductive coil and the controlling circuit board, the plug hole connected to a charging device as a power of the wireless charger;
• wherein the fixing structure having two rollers, an axis rod, a recess and a switcher, the axis rod disposed through the two rollers and the two rollers disposed in the recess;
• wherein the two rollers respectively have two notches, and the switcher is disposed over the two rollers, when the two notches face to the switcher, the switcher is abutted on the two notches by moving the switcher to limit the rotation of the two rollers.