JP2007104650A5 - - Google Patents

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Publication number
JP2007104650A5
JP2007104650A5 JP2006241595A JP2006241595A JP2007104650A5 JP 2007104650 A5 JP2007104650 A5 JP 2007104650A5 JP 2006241595 A JP2006241595 A JP 2006241595A JP 2006241595 A JP2006241595 A JP 2006241595A JP 2007104650 A5 JP2007104650 A5 JP 2007104650A5
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Japan
Prior art keywords
plate portion
speaker
drive plate
diaphragm
piezoelectric
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JP2006241595A
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Japanese (ja)
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JP4597105B2 (en
JP2007104650A (en
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Priority to JP2006241595A priority Critical patent/JP4597105B2/en
Priority claimed from JP2006241595A external-priority patent/JP4597105B2/en
Publication of JP2007104650A publication Critical patent/JP2007104650A/en
Publication of JP2007104650A5 publication Critical patent/JP2007104650A5/ja
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Publication of JP4597105B2 publication Critical patent/JP4597105B2/en
Expired - Fee Related legal-status Critical Current
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Claims (19)

駆動板部と、
前記駆動板部の上に固定配置され同駆動板部を駆動する圧電／電歪素子と、
外部に音波を放射するための振動板部と、
前記駆動板部と前記振動板部とを支持する固定部と、
少なくとも前記駆動板部と、前記振動板部と、前記固定部とで区画形成されたキャビティ内に封入され前記駆動板部の振動を前記振動板部に伝達するための媒体と、
を備えたスピーカであって、
少なくとも前記駆動板部がセラミックスからなり、前記駆動板部と前記圧電／電歪素子とが焼成により一体化されていることを特徴とするスピーカ。 A drive plate,
A piezoelectric / electrostrictive element that is fixedly disposed on the drive plate and drives the drive plate;
A diaphragm for radiating sound waves to the outside;
A fixed portion that supports the drive plate portion and the diaphragm portion;
A medium enclosed in a cavity defined by at least the drive plate portion, the vibration plate portion, and the fixed portion, and transmitting the vibration of the drive plate portion to the vibration plate portion;
A speaker with
A speaker, wherein at least the drive plate portion is made of ceramics, and the drive plate portion and the piezoelectric / electrostrictive element are integrated by firing. 請求項１に記載のスピーカにおいて、
複数の前記駆動板部が備えられ、前記複数の駆動板部の上に前記圧電／電歪素子がそれぞれ固定配置されたことを特徴とするスピーカ。 The speaker according to claim 1,
A speaker comprising a plurality of the drive plate portions, wherein the piezoelectric / electrostrictive elements are fixedly arranged on the plurality of drive plate portions. 請求項１又は請求項２に記載のスピーカにおいて、
前記駆動板部と前記振動板部とが１つの平面上に存在することを特徴とするスピーカ。 The speaker according to claim 1 or 2,
The speaker according to claim 1, wherein the driving plate portion and the diaphragm portion are present on one plane. 内側に内部空間を有する形状を呈した圧電／電歪素子と、
外部に音波を放射するための振動板部と、
少なくとも前記圧電／電歪素子の内部空間と、前記振動板部とで区画形成されたキャビティ内に封入され前記圧電／電歪素子の振動を前記振動板部に伝達するための媒体と、
を備えたスピーカ。 A piezoelectric / electrostrictive element having a shape having an internal space inside;
A diaphragm for radiating sound waves to the outside;
A medium enclosed in a cavity defined by at least an internal space of the piezoelectric / electrostrictive element and the diaphragm, and transmitting vibrations of the piezoelectric / electrostrictive element to the diaphragm;
Speaker equipped with. 請求項４に記載のスピーカにおいて、
前記圧電／電歪素子の内部空間は、複数の空間に区画されていることを特徴とするスピーカ。 The speaker according to claim 4, wherein
The speaker according to claim 1, wherein an internal space of the piezoelectric / electrostrictive element is partitioned into a plurality of spaces. 請求項１乃至請求項５の何れか一項に記載のスピーカにおいて、
前記媒体は液体であることを特徴とするスピーカ。 The speaker according to any one of claims 1 to 5,
The speaker, wherein the medium is a liquid. 請求項１乃至請求項５の何れか一項に記載のスピーカにおいて、
前記媒体はゲルであることを特徴とするスピーカ。 The speaker according to any one of claims 1 to 5,
The speaker, wherein the medium is a gel. 請求項１乃至請求項７の何れか一項に記載のスピーカにおいて、
前記圧電／電歪素子には、駆動信号としてオーディオ信号で振幅変調した超音波信号が供給されることを特徴とするスピーカ。 The speaker according to any one of claims 1 to 7,
The speaker, wherein the piezoelectric / electrostrictive element is supplied with an ultrasonic signal amplitude-modulated with an audio signal as a drive signal. 駆動板部と、
前記駆動板部の上に固定配置され同駆動板部を駆動する超磁歪材料を用いた超磁歪素子と、
外部に音波を放射するための振動板部と、
前記駆動板部と前記振動板部とを支持する固定部と、
少なくとも前記駆動板部と、前記振動板部と、前記固定部とで区画形成されたキャビティ内に封入され前記駆動板部の振動を前記振動板部に伝達するための液体と、
を備えたスピーカ。 A drive plate,
A giant magnetostrictive element using a giant magnetostrictive material fixedly disposed on the drive plate portion and driving the drive plate portion;
A diaphragm for radiating sound waves to the outside;
A fixed portion that supports the drive plate portion and the diaphragm portion;
A liquid enclosed in a cavity defined by at least the drive plate portion, the vibration plate portion, and the fixed portion, and for transmitting vibration of the drive plate portion to the vibration plate portion;
Speaker equipped with. 駆動板部と、
前記駆動板部の上に固定配置され同駆動板部を駆動する超磁歪材料を用いた超磁歪素子と、
外部に音波を放射するための振動板部と、
前記駆動板部と前記振動板部とを支持する固定部と、
少なくとも前記駆動板部と、前記振動板部と、前記固定部とで区画形成されたキャビティ内に封入され前記駆動板部の振動を前記振動板部に伝達するためのゲルと、
を備えたスピーカ。 A drive plate,
A giant magnetostrictive element using a giant magnetostrictive material fixedly disposed on the drive plate portion and driving the drive plate portion;
A diaphragm for radiating sound waves to the outside;
A fixed portion that supports the drive plate portion and the diaphragm portion;
A gel for transmitting vibration of the drive plate portion to the vibration plate portion enclosed in a cavity defined by at least the drive plate portion, the vibration plate portion, and the fixed portion;
Speaker equipped with. 内側に内部空間を有する形状を呈した超磁歪材料を用いた超磁歪素子と、
外部に音波を放射するための振動板部と、
少なくとも前記超磁歪素子の内部空間と、前記振動板部とで区画形成されたキャビティ内に封入され前記超磁歪素子の振動を前記振動板部に伝達するための媒体と、
を備えたスピーカ。 A giant magnetostrictive element using a giant magnetostrictive material having a shape having an internal space inside,
A diaphragm for radiating sound waves to the outside;
A medium that is enclosed in a cavity defined by at least an internal space of the giant magnetostrictive element and the diaphragm, and transmits the vibration of the giant magnetostrictive element to the diaphragm;
Speaker equipped with. 請求項１１に記載のスピーカにおいて、
前記超磁歪素子の内部空間は、複数の空間に区画されていることを特徴とするスピーカ。 The speaker according to claim 11, wherein
An internal space of the giant magnetostrictive element is partitioned into a plurality of spaces. 請求項１１又は請求項１２に記載のスピーカにおいて、
前記媒体は液体、又はゲルであることを特徴とするスピーカ。 The speaker according to claim 11 or 12,
The speaker is characterized in that the medium is liquid or gel. 請求項９乃至請求項１３の何れか一項に記載のスピーカにおいて、
前記超磁歪素子には、駆動信号としてオーディオ信号で振幅変調した超音波信号が供給されることを特徴とするスピーカ。 The speaker according to any one of claims 9 to 13,
The speaker according to claim 1, wherein an ultrasonic signal amplitude-modulated with an audio signal is supplied as a drive signal to the giant magnetostrictive element. 外部から力を受けて変形する入力板部と、
出力板部と、
前記出力板部の上に固定配置され同出力板部の変形に応じた電力を発生する圧電／電歪素子と、
前記入力板部と前記出力板部とを支持する固定部と、
少なくとも前記入力板部と、前記出力板部と、前記固定部とで区画形成されたキャビティ内に封入され前記入力板部の変形に基づく圧力を前記出力板部に伝達して同出力板部を変形させるための媒体と、
を備えた電力発生装置であって、
少なくとも前記出力板部がセラミックスからなり、前記出力板部と前記圧電／電歪素子とが焼成により一体化されていることを特徴とする電力発生装置。 An input plate that is deformed by receiving an external force;
An output plate,
A piezoelectric / electrostrictive element that is fixedly disposed on the output plate portion and generates electric power according to deformation of the output plate portion;
A fixing portion that supports the input plate portion and the output plate portion;
At least the input plate portion, the output plate portion, and the fixed portion are enclosed in a cavity that is partitioned, and pressure based on the deformation of the input plate portion is transmitted to the output plate portion to thereby transmit the output plate portion. A medium for deforming;
A power generating device comprising :
Consists of at least the output plate portion ceramics, power generator, characterized in that said output plate portion and the piezoelectric / electrostrictive elements are integrated by firing. 請求項１５に記載の電力発生装置において、
複数の前記入力板部が備えられ、前記媒体は、液体、又はゲルであることを特徴とする電力発生装置。 The power generation device according to claim 15,
A power generation device comprising a plurality of the input plate portions, wherein the medium is a liquid or a gel. 請求項１５又は請求項１６に記載の電力発生装置を有する電子携帯機器。 An electronic portable device comprising the power generation device according to claim 15 or 16. 請求項１５又は請求項１６に記載の電力発生装置を有するパーソナルコンピュータ用入力機器。 The input device for personal computers which has the electric power generation apparatus of Claim 15 or Claim 16. 前記電力発生装置はセンサとして機能することを特徴とする、請求項１５又は請求項１６に記載の電力発生装置、又は、請求項１７に記載の電子携帯機器、又は、請求項１８に記載のパーソナルコンピュータ用入力機器。  The power generation device according to claim 15 or 16, the electronic portable device according to claim 17, or the personal according to claim 18, wherein the power generation device functions as a sensor. Computer input device.
JP2006241595A 2005-09-12 2006-09-06 Speaker and power generator Expired - Fee Related JP4597105B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006241595A JP4597105B2 (en) 2005-09-12 2006-09-06 Speaker and power generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005264010 2005-09-12
JP2006241595A JP4597105B2 (en) 2005-09-12 2006-09-06 Speaker and power generator

Publications (3)

Publication Number Publication Date
JP2007104650A JP2007104650A (en) 2007-04-19
JP2007104650A5 true JP2007104650A5 (en) 2008-07-03
JP4597105B2 JP4597105B2 (en) 2010-12-15

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474614B (en) * 2008-07-11 2012-10-17 Brain Basket Llc Magnetostrictive auditory system
EP2760224B1 (en) * 2011-09-22 2017-01-18 Panasonic Intellectual Property Management Co., Ltd. Directional loudspeaker
JP7298212B2 (en) * 2019-03-15 2023-06-27 セイコーエプソン株式会社 ultrasound device, ultrasound machine
KR20220081731A (en) * 2020-12-09 2022-06-16 엘지디스플레이 주식회사 Apparatus
US12114117B2 (en) * 2020-12-09 2024-10-08 Lg Display Co., Ltd. Apparatus including vibration member to generate sound and vibration for enhancing sound characteristic and sound pressure level characteristic

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725794A (en) * 1980-07-24 1982-02-10 Nippon Telegr & Teleph Corp <Ntt> Sound generator and sound receiver
JPH043698A (en) * 1990-04-20 1992-01-08 Matsushita Electric Ind Co Ltd Stereophonic device
JPH0492899U (en) * 1990-12-28 1992-08-12
JP3318687B2 (en) * 1993-06-08 2002-08-26 日本碍子株式会社 Piezoelectric / electrostrictive film element and method of manufacturing the same
JP2000013893A (en) * 1998-06-25 2000-01-14 Aiphone Co Ltd Piezoelectric sounder
JP2003158787A (en) * 2001-11-20 2003-05-30 Matsushita Electric Ind Co Ltd Speaker, speaker module employing it, and electronic apparatus employing it
JP3903936B2 (en) * 2002-03-18 2007-04-11 セイコーエプソン株式会社 Piezoelectric element, piezoelectric actuator, and liquid jet head

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