[미국특허]
Method and apparatus for energy harvesting using rotational energy storage and release
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-063/04
F02B-063/00
F03G-007/08
F03G-007/00
H02K-007/18
출원번호
UP-0952244
(2007-12-07)
등록번호
US-7626279
(2009-12-16)
발명자
/ 주소
Brown, Stuart B.
Hendrickson, Brian S.
출원인 / 주소
Veryst Engineering LLC
대리인 / 주소
Brezina, David C.
인용정보
피인용 횟수 :
19인용 특허 :
52
초록▼
An energy harvester is provided for converting an input force into electrical energy and also allowing for energy to be stored and then released at a later time. The energy harvester includes a receiver, energy collector, converter, and holder, and operates in three stages. The receiver receives the
An energy harvester is provided for converting an input force into electrical energy and also allowing for energy to be stored and then released at a later time. The energy harvester includes a receiver, energy collector, converter, and holder, and operates in three stages. The receiver receives the input force and the energy collector is moved by the receiver with an input displacement. The energy collector is then held in a catch position. The input force changes direction, and the energy collector is released by the holder and moves with an output displacement that is different from the input displacement. The converter generates electrical energy from the motion created.
대표청구항▼
The invention claimed is: 1. An energy harvester comprising: an energy collector secured to a base to store and release energy that accepts input from a receiver and that responds to a holder controlling output, said energy collector having an inherent output speed and an inherent output frequency,
The invention claimed is: 1. An energy harvester comprising: an energy collector secured to a base to store and release energy that accepts input from a receiver and that responds to a holder controlling output, said energy collector having an inherent output speed and an inherent output frequency, a receiver for receiving an input force and deforming the energy collector to a catch position according to an input displacement wherein the receiver travels with a rotational motion, a holder for temporarily holding the energy collector in the catch position with a constant displacement and releasing the energy collector from the catch position, said selective release being controlled in such a manner that the energy collector moves with an output displacement speed higher than the input displacement speed, that output displacement speed being governed primarily by said collector's inherent output speed and frequency, and a converter for transforming the rotational motion of the energy collector into electric energy. 2. The energy harvester from claim 1, wherein the output displacement has a higher frequency than a frequency of the input displacement. 3. The energy harvester of claim 2, wherein a ratio of the frequency of the input displacement to the frequency of the output displacement is greater than approximately 1:10. 4. The energy harvester of claim 1, wherein the output displacement has higher top speed than a top speed of the input displacement. 5. The energy harvester of claim 4, wherein the top speed of the input displacement to the top speed of the output displacement is greater than approximately 1:10. 6. The energy harvester of claim 1, wherein the energy collector includes a torsion spring. 7. The energy harvester of claim 1, wherein the receiver moves away form the energy collector while the holder is holding the energy collector. 8. The energy harvester of claim 1, wherein the receiver travels with a rotational motion. 9. The energy harvester of claim 1, wherein the receiver includes an input disc. 10. The energy harvester of claim 1, wherein the converter uses magnetic induction. 11. The energy harvester of claim 10, wherein the converter includes a magnet attached to the energy collector. 12. The energy harvester of claim 11, wherein the converter includes a coil. 13. The energy harvester of claim 1, wherein the converter includes a piezoelectric material. 14. The energy harvester of claim 1, wherein the receiver and input force do not impede the output displacement of the energy collector. 15. A method for harvesting energy comprising: deforming at an input displacement an energy collector by an input force and a rotational motion, capturing the energy collector for a period of time at a constant displacement, releasing the energy collector at an output displacement said energy collector having an inherent output speed and an inherent output frequency, and converting the rotational motion of the energy collector into electric energy. 16. A method for harvesting energy comprising: an input stage during which a energy collector, said energy collector having an inherent output speed and an inherent output frequency, is deformed by an input force and a rotational motion, a hold stage during which the energy collector is held and the input force changes direction, and an output stage during which the energy collector is released and a output displacement of the energy collector is converted to electricity, that output displacement being governed primarily by said collector's inherent output speed and frequency.
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