| 摘要 |
<p>PROBLEM TO BE SOLVED: To materialize downsizing by dispensing with a battery, at the section on output side. SOLUTION: This cordless power station includes two coils which are opposed to each other across space, which constitute a primary coil 21 with a section 20 on input side of power, and constitute a secondary coil 11 with a section 10 on the other output side, and when transmitting power with no contact, making use of the electromagnetic induction work generated between these opposed oil, and the section 10 output side outputs power, being equipped with a charge circuit by a small-sized circuit part 14 connected with the secondary coil 11, on the face opposite to the face where the primary coil 21 and the secondary coil 11 are opposed, and at least either the primary coil 21 and the secondary coil 11 opposed to each other is provided with the ferrite core 12 of a soft magnetic material layer, on the face opposite to the face where these two are opposed to each other. For the section 10 on output side which receives power from the primary coil 21, it will do to omit the ferrite core 12, making the secondary coil 11 one to constitute it in minimum, and besides, providing the soft magnetic material layer outside the primary coil 21 of the section 20.</p> |
