WO2016125956A1 - Dispositif de haut-parleur piézoélectrique non inflammable - Google Patents

Dispositif de haut-parleur piézoélectrique non inflammable Download PDF

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Publication number
WO2016125956A1
WO2016125956A1 PCT/KR2015/005298 KR2015005298W WO2016125956A1 WO 2016125956 A1 WO2016125956 A1 WO 2016125956A1 KR 2015005298 W KR2015005298 W KR 2015005298W WO 2016125956 A1 WO2016125956 A1 WO 2016125956A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
piezoelectric
sound
metal diaphragm
ceramic plate
Prior art date
Application number
PCT/KR2015/005298
Other languages
English (en)
Korean (ko)
Inventor
정길선
김철희
Original Assignee
정길선
김철희
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 정길선, 김철희 filed Critical 정길선
Priority to CN201580075424.7A priority Critical patent/CN107211219A/zh
Priority to JP2017559264A priority patent/JP2018504078A/ja
Publication of WO2016125956A1 publication Critical patent/WO2016125956A1/fr

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • 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
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • 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
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure

Definitions

  • the present invention relates to a non-combustible piezoelectric piezoelectric speaker device, and more specifically, to the vibration device is controlled by the pointed end of the elastic support piece under the elastic force of the spring in the ring in the state in which the ceramic plate attached to the metal diaphragm diaphragm The temperature at the time of fire is to be output through the ceramic plate and the metal diaphragm diaphragm which are output from the non-flammable material with high quality voice signal from the high to the low tone through the amplifier.
  • the present invention relates to a non-combustible piezoelectric piezoelectric speaker device capable of outputting sound without being influenced by external influences such as water and water.
  • the sound heard by the ear is a wave made by the vibration of an object, and the sound comes in through the ear canal, the ear canal, vibrates in the eardrum, and the cells in the inner ear drum stimulate the cells to be heard. have.
  • the range of sounds a person can hear depends on their hearing ability, 20 ⁇ 20, 000Hz, the sound suitable for human hearing is 125 ⁇ 8,000Hz.
  • the speaker has a cone type, angular type, mark type, etc., and is used depending on the purpose.
  • cone-shaped speakers generally have a conical diaphragm, and a driving current flows through a voice coil disposed on the diaphragm to cause the diaphragm to vibrate to generate a dense wave of air (long wave).
  • Japanese Unexamined Patent Publication No. 2004-64726 and Japanese Unexamined Patent Publication No. 2002-78077 are output.
  • NTX Co., Ltd. has developed and put into practical use a speaker that generates sound by using it as a flat panel diaphragm and vibrating it (for example, see Japanese Patent Application Laid-Open No. 11-512249).
  • This type of speaker has the advantage of being lightweight and easy to install regardless of the place, but in terms of sound range, frequency characteristics, and voice reproducibility, it is usually equipped with a cone-shaped woofer, a tweeter, and a squawker. Its use was limited compared to box speakers.
  • the transverse wave is characterized by a very low attenuation rate compared with the longitudinal wave, and a speaker capable of transmitting a sound to a distant place by using this has been proposed (for example, Japanese Patent Application Publication No. 2007-19623).
  • a bending ' force is applied to the diaphragm of the speaker, and a shear wave is generated due to the bending.
  • the plate is formed using a plate member of wood, plastic or metal as the diaphragm. It is assumed that the shape member is bent to generate and add the bending stress.
  • the speaker makes a sound by converting an electric signal into vibration by an electromagnetic coil or a piezoelectric element and transmitting vibration to air through a flat panel (vibration plate).
  • the panel cannot follow the vibration of the vibrator. That is, only the periphery of the vibrator vibrates, and most of the others cannot obtain vibrations at the required frequency, so that no extraneous noise occurs or the required sound is produced by interference. In particular, in the high-pitched sound (high frequency and fast vibration), the above-mentioned phenomenon is remarkably expressed.
  • the panel is made of the plate-like plastic or the like as described above, the above-described phenomenon becomes remarkable, and the panel, that is, the speaker cannot have a performance that can be practically provided.
  • the panel (vibration plate) is made of a rigid plate-like member such as metal
  • the rigidity of the panel can be increased, but the panel itself becomes too heavy, so that the inertial force of the panel even if the vibrator tries to vibrate the panel.
  • the panel Becomes so large that the panel cannot follow the vibration of the vibrator.
  • the panel can reproduce only a partial frequency of the vibration from the vibrator.
  • piezoelectric elements can change electrical and mechanical energy from each other.
  • a piezoelectric speaker is a representative product of an acoustic component that generates sound of a desired frequency band by acoustically converting the mechanical movement of the piezoelectric element by a diaphragm.
  • the piezoelectric speaker includes a piezoelectric element and a diaphragm formed larger than the piezoelectric element and attached to one surface of the piezoelectric element to amplify the vibration generated in the piezoelectric element.
  • the piezoelectric speaker As the diaphragm applied to the piezoelectric speaker, a metal material having good transmission rate and zero (stretching elastic modulus) of sound waves is used. Accordingly, the piezoelectric speaker has an advantage of efficiently converting the vibration of the piezoelectric element into sound waves.
  • metal has the disadvantage of being thick and heavy due to its inherent properties.
  • the diaphragm applied to the piezoelectric speaker is relatively thick and heavy, compared to the diaphragm applied to the dynamic speaker composed of tens of micron thin synthetic resin sheets.
  • piezoelectric speakers have a lower frequency than the dynamic speaker.
  • Korean Patent Registration No. 10—1159037 dated June 15, 2012 (a speaker diaphragm and a speaker using the same) has been proposed.
  • the foam layer is made of a foamable resin composition comprising a thermosetting resin, a hollow sphere-shaped inorganic material and a thermally expandable microcapsules,
  • the bending diaphragm was applied to the diaphragm for the speaker.
  • It consists of a receiving case with an open top, a diaphragm accommodated in the receiving case, and a piezo-electr ic transducer (PZT) made of ceramic material.
  • PZT piezo-electr ic transducer
  • Piezoelectric element for vibrating the vibration plate laminated on the lower side by receiving the AC signal from the AC signal supply unit through the upper and lower silver paste and lower surface silver paste formed on the upper and lower surfaces,
  • the damper is bonded to the upper surface of the upper silver paste in the shape of a metal piece of a predetermined size, the cover case is coupled to the open upper portion of the housing case,
  • One end is coupled to the cover case, and the other end is configured to include a support for engaging the diaphragm so that the diaphragm is supported on the cover case.
  • It comprises a piezoelectric element
  • An attachment portion to which the piezoelectric element is attached is formed in a central region, an edge portion is formed along an edge region, and a connection portion connecting the attachment portion and the edge portion is formed, and penetrates the portion except for the attachment portion, the edge portion and the connection portion.
  • the low tone is not heard, as well as the parasitic frequency or waveform distortion occurs in the mid and high bands, there is a disadvantage that the mid and high treble is not easy.
  • the present invention is to solve the conventional problems as described above, by the pointed end of the elastic support piece subjected to the elastic force of the spring in the ring in the state in which the ceramic plate is attached to the metal diaphragm diaphragm By controlling the vibration, the sound output from the sound device, amplified through the amplifier, and transmitted through the electric cable It is a non-combustible device that outputs sound without being influenced by external temperature such as temperature and water in case of fire by outputting high quality sound signal from high to low sound through ceramic ceramic plate and metal diaphragm diaphragm. It is an object to provide a piezoelectric piezo speaker device.
  • the present invention applies a deformation to form a bent portion around the metal diaphragm diaphragm attached to the central hole to hold the distortion of the vibration while physically absorbing the saturation of the high-pitched sound as well as a low-quality sound to enhance the sound quality To make it possible for a different purpose.
  • the present invention hops to a specific frequency of high gain generated according to the material of copper, stainless steel titanium, nickel, etc. of the metal diaphragm diaphragm in the interior of the bellows in which the ceramic plate, the metal diaphragm diaphragm and the elastic support piece are built.
  • Another object is to provide a sound absorbing material selectively to reproduce a stable frequency.
  • the present invention is to attach a ceramic circuit to both sides of the metal diaphragm diaphragm having a circular hole in the center by attaching a ceramic circuit in parallel to transfer the large vibration all-metal diaphragm diaphragm through the two ceramic plates. do .
  • the non-combustible piezoelectric piezoelectric speaker device of the present invention for achieving the above object, the ceramic plate is attached to the center of the metal diaphragm diaphragm output from the sound device and amplified while passing through the amplifier electrical signal of the voice
  • the voice can be output without being influenced by external temperature such as temperature and water, and the pointed end of the other side of the elastic support piece which is supported by one side while receiving the elasticity of the spring in the ring to which the metal diaphragm diaphragm is fixed
  • the electrical signal of the amplified voice is output from the sound device while passing through the amplifier while the ceramic plate is attached to the center of the metal diaphragm diaphragm.
  • non-combustible components including metal diaphragm diaphragms.
  • the ceramic plate is effective to attenuate the distortion frequency by forming a bent portion around the circumference of the metal diaphragm diaphragm attached to the center to reduce the saturation phenomenon.
  • FIG. 1 is a schematic diagram showing the overall configuration of the present invention.
  • Figure 2 is a schematic diagram showing the configuration of a vibration member according to another embodiment of the present invention.
  • 3 is a graph showing the output frequency characteristics of the piezoelectric piezoelectric speaker according to the present invention.
  • Figure 4 is a graph showing the output frequency characteristics of a conventional general piezoelectric piezo speaker.
  • Figure 5 is a graph illustrating the output frequency characteristics of the piezoelectric piezoelectric speaker and the conventional general piezoelectric piezoelectric speaker according to the present invention.
  • Non-combustible piezoelectric piezoelectric speaker device According to the present invention,
  • the ceramic plate 2 which is a piezoelectric element, is placed at the center of the metal diaphragm diaphragm 3.
  • the metal diaphragm diaphragm 3 of the vibrating member 1 is to be fixed to the open portion of the rim rim 5,
  • the bent portion 4 is formed around the circumference of the metal diaphragm diaphragm 3 to which the ceramic plate 2 is attached at the center, and the vibration of the metal diaphragm diaphragm 3 is stopped at that portion, thereby causing the metal diaphragm diaphragm to stop. Mainly occurring in the outer area of (3)
  • a sound absorbing material 8 is attached to absorb and remove the frequency of the band causing the distortion of the waveform by the frequency characteristics of the diaphragm 3 so that the sound of even quality from the high to the low may be removed. It is configured to listen without being affected.
  • Non-combustible piezoelectric piezoelectric speaker device of the present invention configured as described above,
  • the ceramic plate 2 which is the piezoelectric element 2 is manufactured to a thickness of about 0.2 ⁇ . And while manufacturing the metal diaphragm diaphragm (3) made of copper, stainless steel, titanium, nickel, etc. by measuring the frequency characteristics to determine in advance which frequency band is vulnerable.
  • the ceramic plate 2 is attached to the center of the metal diaphragm diaphragm 3 to produce the vibrating member 1.
  • the voice can be output without being influenced by external temperature such as temperature and water during a fire. do.
  • the amplification by the vibration of the ceramic plate 2 is performed.
  • a sharp end of the other end of the elastic support piece 7 supported to receive the elastic force of the spring 6 on one side of the ring barrel 5 selectively controls vibration with the ceramic plate 2.
  • Output from the device 10 and amplified while passing through the amplifier 11 is a non-combustible when the electrical signal of speech is transmitted through the electric wire 12
  • a bent portion 4 is formed around the circumference of the metal diaphragm diaphragm 3 to which the ceramic plate 2 is attached at the center thereof, whereby the metal diaphragm diaphragm 3 is formed. Vibration is stopped to occur mainly in the outer portion of the metal diaphragm vibrating ring (3) to prevent the saturation phenomenon that occurs in part in the high tone to attenuate the distortion frequency to stabilize the overall frequency.
  • the inner surface of the ring (5) is the metal measured before
  • a sound absorbing material (8) is attached to the diaphragm diaphragm (3) to absorb and remove the frequency of the band causing the distortion of the waveform, depending on the material characteristics of the diaphragm diaphragm (3). Listen without being influenced by outside.
  • both the ceramic plate 2 and the metal plate 3 are flame retardant, the announcement can be stably established even in the event of an emergency such as fire, building collapse, and various gas leaks.
  • Figure 2 shows the configuration of a vibrating member according to another embodiment of the present invention, different diameter values on both sides of the metal diaphragm diaphragm 20 is provided with a circular hole 21 in the center
  • a wider frequency range can be transmitted to the metal diaphragm diaphragm 20 while the width of the frequency is widened through the two ceramic plates 22 23. Listen to the sound without the influence of temperature and moisture in case of fire.
  • Piezoelectric piezoelectric speaker the output frequency as shown in FIG. Characteristics are best audible frequency band ⁇ band as well inde relative to hear preferably up to 230Hz band whereas, in the conventional general piezoelectric, the piezoelectric speaker jjeo is 4, the output frequency characteristics as shown FIG deadline preferably up to the band to 550Hz You will be able to see if you can hear them.
  • the output frequency characteristics (same as shown in Fig. 3) that can be heard well up to the ⁇ band and the 230 Hz band of the audible frequency band of the piezoelectric piezoelectric speaker according to the present invention and the ⁇ band of the conventional piezoelectric piezoelectric speaker and the band up to 550Hz
  • the output frequency characteristics (same as the illustration of FIG. 4) that can only be heard up to now, it is possible to clearly check through FIG. 5.

Abstract

L'invention concerne un dispositif de haut-parleur piézoélectrique non inflammable caractérisé en ce qu'il est configuré de la façon suivante : dans un état dans lequel une plaque céramique est fixée au centre d'une plaque de vibration de diaphragme métallique , un signal électrique de son est produit à partir d'un dispositif audio, amplifié par un amplificateur, et est transmis par l'intermédiaire d'un fil électrique, de sorte que le son peut être amplifié et émis dans le cas d'un incendie sans être affecté par des influences extérieures telles que la température et l'eau; la vibration de la plaque céramique est commandée par une extrémité pointue sur un côté d'une pièce de support élastique qui est supportée par la force d'un ressort élastique au niveau de son autre côté sur une chambre de résonance à laquelle la plaque de vibration de diaphragme métallique est fixée, de sorte que le son qui a été stabilisé depuis des fréquences hautes à des basses fréquences est amplifié et émis; et une partie courbée est formée au niveau du bord circonférentiel de la plaque de vibration de diaphragme métallique au centre de laquelle est fixée la plaque céramique afin de réduire les fréquences de distorsion de plage moyenne et élevée.
PCT/KR2015/005298 2015-02-03 2015-05-27 Dispositif de haut-parleur piézoélectrique non inflammable WO2016125956A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580075424.7A CN107211219A (zh) 2015-02-03 2015-05-27 不燃压电扬声器
JP2017559264A JP2018504078A (ja) 2015-02-03 2015-05-27 不燃性のピエゾ圧電スピーカ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150016489A KR101583650B1 (ko) 2015-02-03 2015-02-03 불연 피에조 압전 스피커장치
KR10-2015-0016489 2015-02-03

Publications (1)

Publication Number Publication Date
WO2016125956A1 true WO2016125956A1 (fr) 2016-08-11

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PCT/KR2015/005298 WO2016125956A1 (fr) 2015-02-03 2015-05-27 Dispositif de haut-parleur piézoélectrique non inflammable

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JP (1) JP2018504078A (fr)
KR (1) KR101583650B1 (fr)
CN (1) CN107211219A (fr)
WO (1) WO2016125956A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101666754B1 (ko) * 2015-06-22 2016-10-14 정길선 비상사태 발생시 탈출 유도 및 방송장치
CN110277083B (zh) * 2018-03-16 2021-04-02 北京理工大学 一种低频吸声超材料

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KR20070111938A (ko) * 2006-05-19 2007-11-22 (주)아이블포토닉스 음 재생용 압전 진동자 및 이를 구비한 압전형 패널 스피커및 압전형 이어폰
KR20110024211A (ko) * 2009-09-01 2011-03-09 주식회사 이노칩테크놀로지 진동부재 및 이를 이용한 압전 스피커
KR20120064984A (ko) * 2010-12-10 2012-06-20 한국전자통신연구원 압전 스피커
KR20130016976A (ko) * 2011-08-09 2013-02-19 (주)이노포유 압전 구동체를 이용한 음향변환장치
JP2014072571A (ja) * 2012-09-27 2014-04-21 Shotoku Kogyosho Co Ltd 波状管型スピーカーボックス及び音響装置

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JPH03798Y2 (fr) * 1985-06-19 1991-01-11
JPH03124200A (ja) * 1989-10-07 1991-05-27 Nippon Chemicon Corp 圧電パネルスピーカ
JP2010131540A (ja) * 2008-12-05 2010-06-17 Yamatake Corp 集塵セルおよびエアクリーナ
CN103002363A (zh) * 2011-09-19 2013-03-27 方桂梅 使用压电驱动模块的音响转换装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070111938A (ko) * 2006-05-19 2007-11-22 (주)아이블포토닉스 음 재생용 압전 진동자 및 이를 구비한 압전형 패널 스피커및 압전형 이어폰
KR20110024211A (ko) * 2009-09-01 2011-03-09 주식회사 이노칩테크놀로지 진동부재 및 이를 이용한 압전 스피커
KR20120064984A (ko) * 2010-12-10 2012-06-20 한국전자통신연구원 압전 스피커
KR20130016976A (ko) * 2011-08-09 2013-02-19 (주)이노포유 압전 구동체를 이용한 음향변환장치
JP2014072571A (ja) * 2012-09-27 2014-04-21 Shotoku Kogyosho Co Ltd 波状管型スピーカーボックス及び音響装置

Also Published As

Publication number Publication date
CN107211219A (zh) 2017-09-26
KR101583650B1 (ko) 2016-01-11
JP2018504078A (ja) 2018-02-08

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