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Power generation element and power generation apparatus provided with power generation element achieved

Foreign code F130007636
File No. 2009-0036KR
Posted date Oct 2, 2013
Country Republic of Korea
Application number 20127032626
Gazette No. 20130028940
Gazette No. 101457782
Date of filing Jun 9, 2011
Gazette Date Mar 20, 2013
Gazette Date Nov 3, 2014
International application number JP2011003276
International publication number WO2011158473
Date of international filing Jun 9, 2011
Date of international publication Dec 22, 2011
Priority data
  • P2010-139930 (Jun 18, 2010) JP
  • 2011JP003276 (Jun 9, 2011) WO
Title Power generation element and power generation apparatus provided with power generation element achieved
Abstract The present invention provides a power generation element which has strong resistance to bending and impact and has high power generation capacity, and a power generation apparatus including the power generation element.
The power generation element (1) includes: a first magnetostrictive rod (11a) made of a magnetostrictive material; a rigid rod (11b) made of a magnetic material and disposed in parallel with the first magnetostrictive rod (11a), the magnetic material having rigidity and a shape that enable uniform application of compression force or tensile force to the first magnetostrictive rod (11a); a first coil (12c) wound around the first magnetostrictive rod (11a); and two connecting yokes (10a and 10b) each of which is provided at one end of each of the first magnetostrictive rod (11a) and the rigid rod (11b) to connect the first magnetostrictive rod (11a) and the rigid rod (11b), wherein the power generation element (1) generates power through expansion or contraction of the first magnetostrictive rod (11a) due to vibration in a direction perpendicular to an axis direction of the first magnetostrictive rod (11a).
(From EP2573931 A1)
  • Applicant
  • KANAZAWA UNIVERSITY
  • Inventor
  • UENO TOSHIYUKI
  • IKEHATA YOSHIO
  • YAMADA SOTOSHI
IPC(International Patent Classification)
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