| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize noncontact AC power supply by fixing a power supply coil to one housing for electronic circuit and fixing a power receiving coil, being fed with power from the power supply coil through electromagnetic field, to another housing for electronic circuit. SOLUTION: A power supply side housing 1 for electronic circuit is provided with a hinge shaft 3 and a power receiving side housing 2 for electronic circuit is provided with a shaft hole 4 for passing the hinge shaft 3. When the hinge shaft 3 and hole 4 are fitted rotatably, the housings 1, 2 rotate relatively. The hinge shaft 3 is made of ferrite and applied with a primary power supply coil 5 on the power supply side housing 1 and a secondary power receiving coil 6 is disposed around the shaft hole 4 of power receiving side housing 2 through a slight gap with respect to the shaft 3. When both housings 1, 2 are coupled through the hinge shaft 3 and hole 4, a transformer is formed and an AC voltage is induced in the power receiving coil 6 thus realizing noncontact power supply.</p> |
