| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a magnetic flux from being closed-looped by only a primary side core of a noncontact transmitter, and to enhance noncontact charge electric power or a noncontact transmission volume of information to electronic equipment. <P>SOLUTION: This noncontact transmitter is provided with the primary side core 100 having a protrusion 110 in the vicinity of central part, and provided with a peripheral wall part 120 extended from a bottom part of the protrusion 110 and including a circumferential face of the protrusion 110, and a primary coil 101 wound on the protrusion 110, the primary side core 100 includes a widened width part 130 installed in a position neighboring over from an upper end part of the peripheral wall part 120 to an upper face of the protrusion 110 and higher than an upper face of the protrusion 110, the primary coil 101 generates an induced electromotive force in a secondary coil 501 of an electronic timepiece 500 located in an inside surrounded by an inner edge part of the widened width part and located with a prescribed distance from the protrusion 110, by generating the magnetic flux together with the primary side core 100, and the charge electric power or information is transmitted to the electronic timepiece 500. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
