Title:
VIBRATION-POWERED GENERATOR
Document Type and Number:
WIPO Patent Application WO/2015/140958
Kind Code:
A1
Abstract:
This invention yields a vibration-powered generator that makes it possible to expand, relative to existing vibration-powered generators, the range of frequencies over which a desired generating efficiency can be obtained. Said vibration-powered generator contains the following: a permanent magnet; a coil that is laid out in a fixed manner around said permanent magnet; two magnetic spring units provided on the axial ends of the permanent magnet via a guide rod; an adjustment mechanism that can adjust the inter-magnet separation in each magnetic spring unit; and two flat springs that are connected to the guide rod and inhibit lateral oscillation of the permanent magnet and the guide rod. This vibration-powered generator is provided with a plurality of movable units each comprising a permanent magnet and a guide rod and further contains a joining spring that joins said movable units in the axial direction. A resonant frequency is individually set for each movable unit via the selection of the joining spring and the adjustment, via the adjustment mechanism for that movable unit, of the inter-magnet separation in each magnetic spring unit in said movable unit.
Inventors:
NOMURA HIROMORI (JP)
MIYAZAKI KAZUYA (JP)
MIYAZAKI KAZUYA (JP)
Application Number:
PCT/JP2014/057524
Publication Date:
September 24, 2015
Filing Date:
March 19, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC ENG (JP)
International Classes:
H02K35/02
Domestic Patent References:
| WO2007121380A2 | 2007-10-25 |
Foreign References:
| JP2012249442A | 2012-12-13 | |||
| JP2013055714A | 2013-03-21 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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