| 摘要 |
PROBLEM TO BE SOLVED: To provide a noncontact charging electronic apparatus wherein charging efficiency can be enhanced, deformation in a power storage source arising from charging can be absorbed, and thickness reduction can be achieved. SOLUTION: The noncontact charging electronic apparatus 1 includes: a cylindrical outer frame 2; a back cover 4 that closes the opening of the outer frame 2 on one side; a secondary coil 14 that is disposed inside the back cover 4 and generates power by electromagnetic induction in a primary coil; and an accumulator 11 that stores power generated by the secondary coil 14. An elastic member 12 is placed between the secondary coil 14 and the accumulator 11. The secondary coil 14 is biased toward the back cover 4 by the elastic member 12. Therefore, the secondary coil 14 can be kept close to the primary coil by the elastic member 12. As a result, the distance between the secondary coil 14 and the primary coil is constantly reduced and the efficiency of charging the secondary coil 14 by the primary coil can be enhanced. The elastic member 12 can absorb change in the dimensions of the accumulator 11 and thus the apparatus can be thinned. COPYRIGHT: (C)2008,JPO&INPIT |
