FOLDING PORTABLE COMMUNICATION UNIT AND POWER SUPPLY METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a folding portable communication unit in which the lifetime of a battery can be prolonged without sacrifice of reliability, e.g. strength at a hinge part. SOLUTION: A printed board 20 is incorporated in the upper case 2 connected turnably to the lower case through th...

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Bibliographic Details
Main Author WATANABE YASUSUKE
Format Patent
LanguageEnglish
Published 25.04.2003
Edition7
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
TELEPHONIC COMMUNICATION
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To provide a folding portable communication unit in which the lifetime of a battery can be prolonged without sacrifice of reliability, e.g. strength at a hinge part. SOLUTION: A printed board 20 is incorporated in the upper case 2 connected turnably to the lower case through the hinge part and provided with a power generating function 21 and a converter 22 wherein the power generating function 21 comprises a pendulum having a magnetic pole and a coil. The power generating function 21 generates an electromotive force by forming an excitation effect when the pendulum having a magnetic pole is oscillated or rotated by not only the open/close operation of the upper case 2 but also the vibration thereof to pass through the coil. The electromotive force is converted through the converter 22 into a DC current and fed to a secondary battery which is thereby charged.
Bibliography:Application Number: JP20010318790