Foldable miniature vibration generator and manufacturing method thereof
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United States of America Patent
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Oct 24, 2017
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app pub date -
Feb 5, 2013
filing date -
Jan 21, 2013
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Abstract
The present invention discloses a folding vibration microgenerator and a method of manufacturing the same. The microgenerator comprises a foldable sandwiched substrate, wherein the foldable substrate comprising two flexible insulating substrates and an induction electrode located between the two flexible insulating substrates, in which the induction electrode is constructed by two complementary comb-shaped electrodes. The foldable substrate has upper and lower surfaces, on which the first friction structure units and the second friction structure units are respectively periodically distributed, and the first friction structure units corresponds to the odd-numbered comb teeth of the induction electrode and the second friction structure units corresponds to the even-numbered comb teeth of the induction electrode. The foldable substrate is folding at gaps between two adjacent comb teeth of the induction electrode as a serrate shape, thereby forming a folding vibration microgenerator. The microgenerator is easy to be produced and largely increases output power per unit area. Due to inflexibility of the folding structure itself, the energy conversion efficiency of the microgenerator is effectively increased while output power being maintained.
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