Energy harvester and display apparatus including the same
AssigneeLG Display Co., Ltd.
InventorsMyungeun Song, JunHa Hwang, JaeChul Hwang, HyeRan Park
Life of this patent
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Abstract
An energy harvester includes a housing including an inner space holed in a lengthwise direction, a first magnet portion disposed at a center portion of the inner space of the housing, a second magnet portion spaced apart from the first magnet portion in the inner space, the second magnet portion including a first surface having a magnetic repulsive force with the first magnet portion, and a power generating device part disposed on a second surface of the second magnet portion and configured to generate electrical energy based on deformation thereof.
Claims23
An energy harvester, comprising:
- a housing including an inner space holed in a lengthwise direction;
- a first magnet portion disposed at a center portion of the inner space of the housing;
- a second magnet portion spaced apart from the first magnet portion in the inner space, the second magnet portion including a first surface having a magnetic repulsive force with the first magnet portion;
- and
- a power generating device part disposed on a second surface of the second magnet portion and configured to generate electrical energy based on deformation of the power generating device part,
- wherein the housing comprises a sloped inner surface so that the inner space is widened in a direction away from the center portion of the inner space.
An energy harvester, comprising:
- a housing including an inner space holed in a lengthwise direction;
- a first magnet portion disposed at a center portion of the inner space of the housing;
- a second magnet portion spaced apart from the first magnet portion in the inner space, the second magnet portion including a first surface having a magnetic repulsive force with the first magnet portion;
- and
- a power generating device part disposed on a second surface of the second magnet portion and configured to generate electrical energy based on deformation of the power generating device part,
- wherein the power generating device part comprises at least one piezoelectric member,
- wherein the at least one piezoelectric member comprises:
- a first electrode layer;
- a second electrode layer;
- and
- a piezoelectric material layer disposed between the first electrode layer and the second electrode layer,
- wherein the first electrode layer is coupled to the second surface of the second magnet portion by a first adhesive layer, and
- wherein the second electrode layer is coupled to one side of the housing or the other side of the housing.
Dependencies are inferred from the claim text.