Patent ID: 8907619
Filing Date: 2014-12-09
Classification: G12B,Y10T

Abstract:
1. A wireless charger installed with a moving part comprising: a lower case, where a first coil is positioned; and an upper case which covers the lower case, the upper case comprising a top surface; and the moving part, wherein the first coil is moved near to a charge battery by the moving part and the charge battery is charged by supplying power from the first coil towards the charge battery when the charge battery attached with a second coil is set on the top surface of the upper case; the moving part comprises: a first drive part comprising an X axis motor which moves an X axis slider in an X axis direction along an X axis guide; a second drive part comprising a Y axis motor which moves a Y axis slider in a Y axis direction along a Y axis guide; and a table which moves in the X axis direction and the Y axis direction by a movement of the X axis slider and the Y axis slider; wherein the X axis slider includes a rack parallel to the X axis guide and an extension part parallel to Y axis; the Y axis slider includes a rack parallel to the Y axis guide and an extension part parallel to X axis; the table comprises; the first drive part further comprises a pair of X axis pinions arranged at a location to simultaneously mesh with teeth near both ends of a rack of the X axis slider, and the pair of X axis pinions are driven by the X axis motor and rotated in synchronization when the X axis slider is located at the center of a moving range; the second drive part further comprises a pair of Y axis pinions arranged at a location to simultaneously mesh with teeth near both ends of a rack of the Y axis slider, and the pair of Y axis pinions are driven by the Y axis motor and rotated in synchronization when the Y axis slider is located at the center of a moving range; the slider base includes a hole passing through the slider base in an X axis direction and a plurality of L shaped leg parts arranged on a bottom of the slider base and projecting downward from the bottom of the slider base; the hole is slidably attached to the extension part of the Y axis slider; at least one of the plurality of L shaped leg parts is arranged to be opposed to the other L shaped leg parts; and the plurality of L shaped leg parts are slidably attached to the extension part of the X axis slider.