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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/050114
Kind Code:
Disclosed is an electromagnetic energy harvester comprising: a shaft reciprocating by external force; a hollow inner frame attached to the shaft, and having a part at which a cylindrical Halbach array unit, in which axial direction magnets and radial direction magnets are repeatedly and alternately disposed, is formed; and a hollow outer frame, which accommodates an outer surface of the inner frame, and has a coil unit formed so as to correspond to a position at which the Halbach array unit is formed, wherein the coil unit has slots, which are spaced apart at predetermined intervals and are wound with a coil for generating magnetic flux interlinkage by means of relative movement with the shaft and the inner frame, and the Halbach array unit further comprises spacers disposed on surfaces, of the radial direction magnets, facing the coil unit. Therefore, the value of the interlinked magnetic flux is maximized and a magnetic flux leakage is minimized such that more improved power generation is provided with the same vibration energy.

CHUN, Yon Do (305 25, Seokdong-ro 39beonan-gil,Jinhae-gu, Changwon-si, Gyeongsangnam-do, 51658, KR)
DUONG, Minh Trung (12 Bulmosan-ro 10beon-gil, Seongsan-gu Changwon-si, Gyeongsangnam-do, 51543, KR)
HAN, Pil Wan (217-801, LG Metrocity 4 Cha Apt. 113, Bunpo-ro,Nam-gu, Busan, 48516, KR)
PARK, Byoung Gun (104-603, Daedong Apt. 292, Changwoncheon-ro,,Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51423, KR)
BANG, Deok Je (326-3, Yeoraksongjeong-ro Cheolma-myeon,,Gijang-gun, Busan, 46002, KR)
Application Number:
Publication Date:
March 14, 2019
Filing Date:
March 19, 2018
Export Citation:
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KOREA ELECTRO TECHNOLOGY RESEARCH INSTITUTE (12 Bulmosan-ro 10beon-gil, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 51543, KR)
International Classes:
H02K35/02; H02K3/12; H02K3/48; H02K5/02
Foreign References:
Attorney, Agent or Firm:
B&IP-JOOWON PATENT AND LAW FIRM (9th Floor, Construction Center Eonju-ro 711,,Gangnam-gu, Seoul, 06050, KR)
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