WO2013022287A3 - Sound conversion device using piezoelectric driving body - Google Patents

Sound conversion device using piezoelectric driving body Download PDF

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Publication number
WO2013022287A3
WO2013022287A3 PCT/KR2012/006342 KR2012006342W WO2013022287A3 WO 2013022287 A3 WO2013022287 A3 WO 2013022287A3 KR 2012006342 W KR2012006342 W KR 2012006342W WO 2013022287 A3 WO2013022287 A3 WO 2013022287A3
Authority
WO
WIPO (PCT)
Prior art keywords
driving body
piezoelectric driving
vibration plate
conductive vibration
conversion device
Prior art date
Application number
PCT/KR2012/006342
Other languages
French (fr)
Korean (ko)
Other versions
WO2013022287A2 (en
Inventor
이충희
Original Assignee
(주)이노포유
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)이노포유 filed Critical (주)이노포유
Publication of WO2013022287A2 publication Critical patent/WO2013022287A2/en
Publication of WO2013022287A3 publication Critical patent/WO2013022287A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

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.
PCT/KR2012/006342 2011-08-09 2012-08-09 Sound conversion device using piezoelectric driving body WO2013022287A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110079219A KR20130016985A (en) 2011-08-09 2011-08-09 Sound converting device using piezoelectric motor
KR10-2011-0079219 2011-08-09

Publications (2)

Publication Number Publication Date
WO2013022287A2 WO2013022287A2 (en) 2013-02-14
WO2013022287A3 true WO2013022287A3 (en) 2013-05-30

Family

ID=47669093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/006342 WO2013022287A2 (en) 2011-08-09 2012-08-09 Sound conversion device using piezoelectric driving body

Country Status (2)

Country Link
KR (1) KR20130016985A (en)
WO (1) WO2013022287A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6174252B2 (en) 2013-12-31 2017-08-02 モダ−イノチップス シーオー エルティディー Portable piezoelectric speaker and electronic device including the same
TW201616876A (en) * 2014-10-20 2016-05-01 Hiroshi Ohara Small speaker vibration piece and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0879891A (en) * 1994-08-31 1996-03-22 Hokuriku Electric Ind Co Ltd Piezoelectric vibrator
JP2002135893A (en) * 2000-10-24 2002-05-10 Matsushita Electric Ind Co Ltd Piezoelectric speaker and its driving circuit
KR20050012126A (en) * 2003-07-24 2005-01-31 다이요 유덴 가부시키가이샤 Piezo-electric vibration device
KR20060021224A (en) * 2004-09-02 2006-03-07 (주)아이블포토닉스 Piezoelectric vibrator with asymmetric i-type elastomer and piezoelectric panel speaker using the same
JP2007300426A (en) * 2006-04-28 2007-11-15 Sony Corp Piezoelectric vibrator and piezoelectric vibration generator equipped therewith

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0879891A (en) * 1994-08-31 1996-03-22 Hokuriku Electric Ind Co Ltd Piezoelectric vibrator
JP2002135893A (en) * 2000-10-24 2002-05-10 Matsushita Electric Ind Co Ltd Piezoelectric speaker and its driving circuit
KR20050012126A (en) * 2003-07-24 2005-01-31 다이요 유덴 가부시키가이샤 Piezo-electric vibration device
KR20060021224A (en) * 2004-09-02 2006-03-07 (주)아이블포토닉스 Piezoelectric vibrator with asymmetric i-type elastomer and piezoelectric panel speaker using the same
JP2007300426A (en) * 2006-04-28 2007-11-15 Sony Corp Piezoelectric vibrator and piezoelectric vibration generator equipped therewith

Also Published As

Publication number Publication date
WO2013022287A2 (en) 2013-02-14
KR20130016985A (en) 2013-02-19

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