NON-CONTACT POWER TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a non-contact power transmission device capable of facilitating matching adjustment in a primary matching device.

SOLUTION: The non-contact power transmission device includes: a high-frequency power supply 30; a primary induction coil 51 that receives supply of electric power from the high-frequency power supply 30; a primary resonance coil 52 that is supplied from the primary induction coil 51 by electromagnetic induction; a secondary resonance coil 61 that field-resonates electric power from the primary resonance coil 52 for power reception; a secondary induction coil 62 that fetches the electric power received by the secondary resonance coil 61 by electromagnetic induction; a load 80 supplied with the electric power received by the secondary induction coil 62; a matching device 40 that is provided between the high-frequency power supply 30 and the primary induction coil 51; and a rectifier 70 that is provided between the secondary induction coil 62 and the load 80. A self-inductance value of the primary induction coil 51 and a self-inductance value of the secondary induction coil 62 are set to cancel a capacitive reactance component of the matching device 70.

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