POWER RECEPTION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM

A power reception device includes a power reception-side resonant circuit which includes a power reception-side coil and a metal plate in which an opening portion is provided in a position opposite the arrangement position of the power reception-side coil, and can receive, by a magnetic field resona...

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Bibliographische Detailangaben
1. Verfasser:	IKEFUJI, Yoshihiro
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SYSTEMS FOR STORING ELECTRIC ENERGY TRANSFORMERS
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Beschreibung
Zusammenfassung:	A power reception device includes a power reception-side resonant circuit which includes a power reception-side coil and a metal plate in which an opening portion is provided in a position opposite the arrangement position of the power reception-side coil, and can receive, by a magnetic field resonance method, power from a power transmission device which includes a power transmission-side resonant circuit including a power transmission-side coil. A cancellation coil is arranged between the power reception-side coil and the opening portion, and a cancellation resonant circuit including a cancellation coil is provided separately in the power reception device. When an alternating magnetic field interlinks the cancellation coil, a current which cancels out variations in the resonant frequencies of the power reception-side resonant circuit and the power transmission-side resonant circuit caused by the presence of the metal plate flows through the cancellation coil.