Title:
SOUND CONVERSION DEVICE USING PIEZOELECTRIC DRIVING BODY
Document Type and Number:
WIPO Patent Application WO/2013/022287
Kind Code:
A3
Abstract:
A sound conversion device comprises: a piezoelectric driving body; a conductive vibration plate, which is physically coupled to the piezoelectric driving body; a first housing comprising a first support protrusion for supporting one surface of the piezoelectric driving body from a fixed point that is positioned to be on the inside space of an outer circumference of the piezoelectric driving body; and a second housing, which provides along with the first housing an inner space for accommodating the piezoelectric driving body and the conductive vibration plate, comprising a second support protrusion for supporting one surface of the conductive vibration plate from a fixed point that corresponds to the first support protrusion. The assembly of the first and second housings fixes the piezoelectric driving body and the conductive vibration plate in the inner space, and allows the piezoelectric driving body and the outer circumference of the conductive vibration plate to vibrate freely with the fixed point at the center.
Inventors:
LEE CHOONG HEE (KR)
Application Number:
PCT/KR2012/006342
Publication Date:
May 30, 2013
Filing Date:
August 09, 2012
Export Citation:
Assignee:
LEE CHOONG HEE (KR)
INNO4U CO LTD (KR)
INNO4U CO LTD (KR)
International Classes:
H04R17/00; H01L41/08
Foreign References:
| KR20050012126A | 2005-01-31 | |||
| JPH0879891A | 1996-03-22 | |||
| JP2007300426A | 2007-11-15 | |||
| KR20060021224A | 2006-03-07 | |||
| JP2002135893A | 2002-05-10 |
Attorney, Agent or Firm:
JI, Hyon-Jo (1922 Nambusunhwanno Gwanak-gu, Seoul 151-832, KR)
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Claims:
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