Power generation unit and light emitting tool
OwnerKohei Hayamizuinventor
Life of this patent
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Abstract
A flexible vibration board (12), a piezoelectric element (13) fixed to at least one side of the vibration board (12), and a fixed board (14) and a weight (16) for promoting deformation of the piezoelectric element (13) caused by vibration of the vibration board (12) are provided in the body (10). When the body (10) vibrates by receiving external force, the weight (16) rocks to cause vibration of the vibration board (12), or when the vibration board (12) vibrates, vibration of the vibration board (12) is sustained by the inertia of the weight (16) and the vibration board (12) deforms through vibration thus deforming the piezoelectric element (13) furthermore.
Claims10
A power generation unit comprising:
- a flexible vibration board;
- a piezoelectric element fixed on at least one of surfaces of the vibration board;
- and
- a deformation promoting unit that promotes deformation of the piezoelectric element caused by vibration of the vibration board, wherein
- the deformation promoting unit is a fixing unit that is arranged on a side of the piezoelectric element and at a position where the deformation promoting unit sandwiches the piezoelectric element together with the vibration board, and
- one end of the vibration board and one end of the fixing unit are fixed on a same installation surface.
A power generation unit comprising:
- a flexible vibration board;
- a piezoelectric element fixed on at least one of surfaces of the vibration board;
- and
- a deformation promoting unit that promotes deformation of the piezoelectric element caused by vibration of the vibration board, wherein
- the vibration board includes a first vibrating portion extending along the piezoelectric element and a second vibrating portion that intersects with the first vibrating portion at right angles.
Dependencies are inferred from the claim text.