Title:
PIEZOELECTRIC ENERGY HARVESTER
Document Type and Number:
WIPO Patent Application WO/2017/073812
Kind Code:
A1
Abstract:
The present invention relates to a piezoelectric energy harvester and, more particularly, to a piezoelectric energy harvester that harvests energy from vibrations of a large-sized apparatus, etc. using a piezoelectric device disposed on a vibration plate connected to an outer frame. A piezoelectric energy harvester, according to an embodiment of the present invention, comprises: an outer frame; a vibration plate connected to the outer frame; and a piezoelectric device disposed on one or more of the upper and lower surfaces of the vibration plate, wherein the piezoelectric device includes: a piezoelectric fiber composite structure; and electrode units disposed on one or more of the upper and lower surfaces of the piezoelectric fiber composite structure, wherein the piezoelectric fiber composite structure has a plurality of piezoelectric ceramic rods arranged side by side and connected with each other by an adhesive provided therebetween, and each of the electrode units includes a pair of electrode patterns electrically insulated from each other and arranged to be interdigitated with each other. Meanwhile, the present invention claims a piezoelectric power generation apparatus, but may also be used as an actuator according to embodiments.
Inventors:
JEONG YOUNG HUN (KR)
PAIK JONG HOO (KR)
CHO JEONG HO (KR)
YUN JI SUN (KR)
KIM CHANG-IL (KR)
PAIK JONG HOO (KR)
CHO JEONG HO (KR)
YUN JI SUN (KR)
KIM CHANG-IL (KR)
Application Number:
PCT/KR2015/011501
Publication Date:
May 04, 2017
Filing Date:
October 29, 2015
Export Citation:
Assignee:
KOREA INST CERAM ENG AND TECH (KR)
International Classes:
H02N2/18; H01L41/047; H01L41/053
Foreign References:
| KR101467933B1 | 2014-12-02 | |||
| JP2014007950A | 2014-01-16 | |||
| US20060016055A1 | 2006-01-26 | |||
| KR101301695B1 | 2013-08-30 | |||
| KR101210431B1 | 2012-12-11 |
Attorney, Agent or Firm:
NAM, Gunpil et al. (KR)
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