Title:
POWER-GENERATING MAGNETOSTRICTOR AND MAGNETOSTRICTIVE POWER GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/132482
Kind Code:
A2
Abstract:
The present invention addresses the problem of providing a power-generating magnetostrictor and a magnetostrictive power generation device, which can achieve the same or a greater magnetostrictive power generation amount compared to conventional technology while also employing materials lower in cost compared to conventional materials currently used as magnetostrictive materials for magnetostrictive power-generating elements. The aforementioned problem is solved by providing: a power-generating magnetostrictor that includes a magnetostrictive part formed from an electromagnetic metal sheet; and a magnetostrictive power generation device that is equipped with a power-generating magnetostrictor including a magnetostrictive part formed from an electromagnetic metal sheet. The present invention also addresses the problem of providing a power-generating magnetostrictor and a magnetostrictive power generation device, which have high voltage and little variation. The aforementioned problem is solved by providing: a power-generating magnetostrictor that has a magnetostrictive part formed from a magnetostrictive material, and a stress control part formed from an elastic material, with the respective Young's moduli and thicknesses of the magnetostrictive material and the elastic material simultaneously satisfying specific relationships; and a magnetostrictive power generation device that is equipped with said power-generating magnetostrictor.
Inventors:
SAKAMOTO HIROAKI (JP)
TANABE MASAO (JP)
TANABE MASAO (JP)
Application Number:
PCT/JP2020/048501
Publication Date:
July 01, 2021
Filing Date:
December 24, 2020
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
C21D9/00; C21D9/46; C22C14/00; C22C19/07; C22C38/00; C22C38/02; C22F1/00; C22F1/10; H01L41/06; H01L41/12; H01L41/20; H02N2/18
Domestic Patent References:
| WO2014021197A1 | 2014-02-06 | |||
| WO2013038682A1 | 2013-03-21 | |||
| WO2013186876A1 | 2013-12-19 |
Foreign References:
| JP2018148791A | 2018-09-20 | |||
| JP2015070741A | 2015-04-13 | |||
| JP2019234429A | 2019-12-25 | |||
| JP2019234437A | 2019-12-25 | |||
| JP2019234443A | 2019-12-25 |
Other References:
ZHANGXIAN DENG; MARCELO J DAPINO: "Modeling and design of Galfenol unimorph energy harvesters", SMART MATERIALS AND STRUCTURES, IOP PUBLISHING LTD., BRISTOL., GB, vol. 24, no. 12, 6 November 2015 (2015-11-06), GB , pages 125019, XP020292876, ISSN: 0964-1726, DOI: 10.1088/0964-1726/24/12/125019
See also references of EP 4083240A4
See also references of EP 4083240A4
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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