WIRELESS CHARGER INSTALLED WITH A TWO-DIMENSIONAL MOVING MECHANISM

• US 20120146579A1
• Filed: 12/21/2011
• Published: 06/14/2012
• Est. Priority Date: 06/25/2009
• Status: Active Grant

• Current Assignee: Tanashin Denki Company Limited
• Original Assignee: Tanashin Denki Company Limited
• Inventors: SHUKUYA, Rei, YAMANAKA, Takashi
• Granted Patent: US 8,907,619 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: G12B 5/00 Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereof levels per se G01C9/00; Compensating for the effects of tilting or acceleration, e.g. for optical apparatus
• CPC Class Codes: Y10T 74/20354 Planar surface with orthogonal movement only

Abstract

A wireless charger installed with a two-dimensional moving mechanism which is simply configured, inexpensive and can be easily miniaturized is provided wherein a table is freely moved in the X-axis direction and the Y-axis direction. In the two dimensional moving mechanism, each pair of X axis pinions are arranged to simultaneously mesh with teeth near both ends of each rack arranged on an X axis slider and Y axis slider respectively. Each pair of pinions are driven by each motor and rotated in synchronization.

Claims

1. A wireless charger installed with a moving mechanism comprising:

a lower case, where a coil is positioned;

an upper case which covers the lower case; and

a charge battery attached to the coil being set on a top surface of the upper case, wherein the coil is moved near to the charge battery by the moving mechanism and the charge battery is charged by supplying power from the coil towards the charge battery;

wherein the moving mechanism comprising;

a first drive mechanism comprising an X axis motor which moves an X axis slider in an X axis direction along an X axis guide;

a second drive mechanism 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 is integrally formed by a rack parallel to the X axis guide and an extension part parallel to Y axis;

the Y axis slider is integrally formed by a rack parallel to the Y axis guide and an extension part parallel to X axis;

the table comprises;

a slider base attached to the X axis slider and the Y axis slider, and which moves in the X axis direction along the extension part of the Y axis slider when the X axis slider moves in the X axis direction, and moves in the Y axis direction along the extension part of the X axis slider when the Y axis slider moves in the Y axis direction; and

a table body fixed to the slider base, and the coil attached to a top surface of the table body;

the first drive mechanism 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; and

the second drive mechanism 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.

2. The wireless charger installed with the moving mechanism according to claim 1, wherein each of the X axis pinions and the Y axis pinions is formed by a two stage gear, each pair of first stage gears are meshed with the rack, and the power of each motor is transferred to each of the pinions via worm gears which include first worms and second worms which mesh with each pair of second stage gears.

3. The wireless charger installed with the moving mechanism according to claim 1, wherein the first drive mechanism and the second drive mechanism are formed as one integral unit by attaching a motor which drives the X axis slider or the Y axis slider to a bracket, attaching a worm gear which is directly connected to the motor, and attaching a pair of pinions which lie between the worm gear and a rack of the X axis slider or the Y axis slider, and the pair of pinions are located to simultaneously mesh with the teeth near both end of the rack of the slider when the slider is located at the center of the moving range.

4. The wireless charger installed with the moving mechanism according to claim 3, wherein the worm gear is manufactured from metal.