| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless power supply system in which magnetic field leakage to the circumference can be suppressed, flexibility of designing can be improved, impedance can be easily matched, and cost can be reduced.SOLUTION: A power supply coil 100L of a wireless power supply system 1 is constituted by aggregations in which power supply unit coils 110, 120, 130 and 140 are arranged so that they are not overlapped with each other on the same plane of a magnetic plate 151, and electrically wired so that a magnetic field generated by the power supply unit coil 120 is oriented in a direction opposite to magnetic fields generated by the other three power supply unit coils 110, 130 and 140 for the plane of the magnetic plate 151. The four power supply unit coils 110, 120, 130 and 140 are electrically connected in parallel with each other. A power reception coil 200L is constituted by aggregations of power reception unit coils 210, 220, 230 and 240 arranged substantially plane-symmetrically with the four power supply unit coils 110, 120, 130 and 140 for the number, position, diameter, shape and magnetic field direction other than the number of windings. The four power reception unit coils 210, 220, 230 and 240 are electrically connected in series with each other. |
