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Title:
VIBRATION POWER GENERATOR
Document Type and Number:
Japanese Patent JP2013135566
Kind Code:
A
Abstract:

To provide a vibration power generator that is capable of effectively suppressing a magnetic field leaking from the inside of an enclosure to the outside thereof and efficiently generating power.

A vibration power generator 1 includes a vibration body 40, a movable element 50, and a support part 61. The vibration body 40 includes a coil 41. The movable element 50 includes a permanent magnet 51. The vibration body 40 is vibratably supported by the support part 61. The movable element 50 is vibratably provided inside a bobbin 43 where a coil 41 is wound. When the vibration power generator 1 vibrates with a weak force, the movable element 50 contacts second wall parts 31B and 31C and does not vibrate and the vibration body 40 vibrates by means of an elastic force of the support part 61. The permanent magnet 51 moves in a space inside the coil 41 and an induction current is induced in the coil 41. When the vibration power generator 1 vibrates with a strong force, the movable element 50 is separated from the second wall parts 31B and 31C. The vibration body 40 and the movable element 50 vibrate and an induction current is induced in the coil 41.


Inventors:
KATAYAMA SHINGO
IIJIMA RYUTA
TAKAHASHI AKINARI
NISHIHARA KEISUKE
Application Number:
JP2011285416A
Publication Date:
July 08, 2013
Filing Date:
December 27, 2011
Export Citation:
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Assignee:
BROTHER IND LTD
International Classes:
H02K35/02
Domestic Patent References:
JP2010115076A2010-05-20
JP4756405B12011-08-24
JP2002374661A2002-12-26
JP2007521785A2007-08-02
Attorney, Agent or Firm:
Hisashi Yamamoto
Tomohiro Inayama



 
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