ANTENNA EQUIPMENT

PROBLEM TO BE SOLVED: To provide an antenna equipment of simple structure which can supply electric power from a fixed part side to a rotary part side in a non-contact manner. SOLUTION: A fixed side insulating plate 61 is arranged on a fixed part which is fixed on the bottom surface of a housing. A...

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Bibliographic Details
Main Authors MORIYA MOTONOBU, UEMATSU MASAHIRO, KATO KAZUO
Format Patent
LanguageEnglish
Published 09.10.1998
Edition6
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To provide an antenna equipment of simple structure which can supply electric power from a fixed part side to a rotary part side in a non-contact manner. SOLUTION: A fixed side insulating plate 61 is arranged on a fixed part which is fixed on the bottom surface of a housing. A rotary side insulating plate 62 is arranged on a rotary part retained by the fixed part, so as to face the fixed side insulating plate 61. An antenna is arranged on the rotary part. A first inductor 63 is arranged on the fixed side insulating plate 61, and a second inductor 64 which is electromagnetically coupled with the first inductor 63 is arranged on the rotary side insulating plate 62. When an AC current is made to flow in the first inductor 63, an induced electromotive force is generated in the second inductor 64 which is caused by the change of magnetic flux generated in the first inductor 63, and electric power is supplied from the fixed part side to the rotary part side. Rotary couplers are arranged in the central part of the fixed side insulating plate 61 and the rotary side insulating plate 62.
Bibliography:Application Number: JP19970071813