SHIELDED POWER COUPLING DEVICE

PROBLEM TO BE SOLVED: To provide an appropriate shielded power coupling device adopting a shield surrounding only a portion when transferring power between relatively rotatable members or adopting a shield divided into a plurality of portion so as to form a gap allowing such relative rotation betwee...

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Bibliographische Detailangaben
1. Verfasser:	JOHN M DOBBS
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INDUCTANCES MAGNETS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an appropriate shielded power coupling device adopting a shield surrounding only a portion when transferring power between relatively rotatable members or adopting a shield divided into a plurality of portion so as to form a gap allowing such relative rotation between the members.SOLUTION: The shielded power coupling device comprises: (a) an induction field generation element capable of converting power into an inductive coupling field; (b) an induction field reception element capable of converting the inductive coupling field into power; (c) an inductive coupling efficiency increase element capable of increasing inductive coupling between the induction field generation element and the inductive coupling field reception element; and (d) a shield around the inductive coupling efficiency increase element. When driving the shielded power coupling device at a power level exceeding 2.5 kW, the shield is capable of substantially removing leakage of electromagnetic radiation from the shielded power coupling device.