KR890006693Y1 - Piezo-electric transducer - Google Patents

Piezo-electric transducer Download PDF

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Publication number
KR890006693Y1
KR890006693Y1 KR2019860014341U KR860014341U KR890006693Y1 KR 890006693 Y1 KR890006693 Y1 KR 890006693Y1 KR 2019860014341 U KR2019860014341 U KR 2019860014341U KR 860014341 U KR860014341 U KR 860014341U KR 890006693 Y1 KR890006693 Y1 KR 890006693Y1
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KR
South Korea
Prior art keywords
diaphragm
piezoelectric
speaker
present
lower sides
Prior art date
Application number
KR2019860014341U
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Korean (ko)
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KR880007220U (en
Inventor
이계수
Original Assignee
삼성전기부품주식회사
서주인
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.)
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Application filed by 삼성전기부품주식회사, 서주인 filed Critical 삼성전기부품주식회사
Priority to KR2019860014341U priority Critical patent/KR890006693Y1/en
Priority to US07/097,628 priority patent/US4820952A/en
Priority to JP1987140140U priority patent/JPH0416558Y2/ja
Priority to DE19873731132 priority patent/DE3731132A1/en
Publication of KR880007220U publication Critical patent/KR880007220U/en
Application granted granted Critical
Publication of KR890006693Y1 publication Critical patent/KR890006693Y1/en

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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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Abstract

내용 없음.No content.

Description

압전형 필름 스피커Piezoelectric film speaker

제1도는 본 고안의 사시도.1 is a perspective view of the present invention.

제2도는 제1도의 A-A선 단면도.2 is a sectional view taken along the line A-A of FIG.

제3도는 본 고안에 따른실시예이다.3 is an embodiment according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 프레임 2 : 압전소자1 frame 2 piezoelectric element

3 : 진동판 4 : 보강재3: diaphragm 4: reinforcement

본 고안은 압전형 필름스피커에 관한 것으로, 특히 진동판의 상, 하변에 보강재를 부착시켜 진동판의 이상진동현상을 방지하면서 중, 저음 특성을 넓혀서 음질을 개선시킨 압전형 필름스피커에 관한 것이다.The present invention relates to a piezoelectric film speaker, and more particularly, to a piezoelectric film speaker which improves sound quality by widening the mid and low characteristics while preventing abnormal vibration of the diaphragm by attaching a reinforcing material to the upper and lower sides of the diaphragm.

일반적으로 스피커는 전류신호를 음성신호로 재생시켜 주는 장치인데 통상 다이나믹형 스피커가 가장 널리 사용되고 있는바, 이는 마그네트와 보이스코일 및 진동판을 비롯한 많은 부품이 필요하게되어 그 구조가 복잡할 뿐만아니라 부피가 커지고 생산비용이 많이 들게되는 폐단이 있었으며, 또한 습기나 온도등과 같은 주위환경에도 큰 영향을 받는등의 문제점이 있었다.In general, a speaker is a device that reproduces a current signal as a voice signal. In general, a dynamic speaker is most widely used. This requires a large number of components including a magnet, a voice coil, and a diaphragm, which is complicated and bulky. There was a disadvantage that became large and costly production, and also had a problem such as being greatly affected by the environment, such as moisture or temperature.

한편, 상기와 같은 문제점을 해결하고자 압전소자를 이용한 압전형스피커가 개발되었는바 상기 압전형스피커는 부피가 적고 중량이 가벼워 천정에 달거나 벽에 걸어서 사용할수 있으며 조립이 간단하여 대량생산에 매우 용이하다.Meanwhile, a piezoelectric speaker using a piezoelectric element has been developed to solve the above problems. The piezoelectric speaker is small in volume and light in weight, can be used on a ceiling or a wall, and is easy to assemble in mass production. .

그러나 이러한 압전형스피커는 압전소자의 진동특성으로 인해 청취감이 좋은 중, 저음을 발생시키지 못하여 고음전용 스피커나 신호용 부저등에만 사용해야하는 제한이 따랐으며, 특히 고음스피커에서는 압전소자 튜유의 금속성 재생음이 발생되는 등의 문제점이 유발되었는바, 최근 이를 보완하여 필름진동판을 이용한 압전형 필름스피커가 개발되었으나 이또한 필름 진동판의 설치구조상 진동판의 상하부가 개방되어 있는 관계로 진동판의 상, 하변에서 진동이 불균일하여 이상음을 발생시키는 등의 문제점이 있었다.However, due to the vibration characteristics of the piezoelectric element, the piezoelectric speaker has a good listening feeling due to the vibration characteristics of the piezoelectric element. Therefore, the piezoelectric speaker has a limitation that it should be used only for a loudspeaker or a signal buzzer. Recently, the piezoelectric film speaker using the film vibrating plate was developed to compensate for this problem.However, due to the installation structure of the film diaphragm, the upper and lower parts of the diaphragm are open, so the vibration is uneven at the upper and lower sides of the diaphragm. There was a problem such as generating an abnormal sound.

이에 본 고안에서는 상기와 문제점을 해결하기 위하여 진동판의 상, 하변에다 보강재를 부착시켜 줌으로써 상기 진동판의 상하부위에서 일어나는 이상진동현상을 방지함은 물론 진동판의 진동수를 억제시켜주어 청취감이 좋은 중, 저음 대역을 넓히도록 된 압전형 필름스피커를 제공하는데 그 목적이 있다.In this invention, in order to solve the above problems, by attaching a reinforcing material to the upper and lower sides of the diaphragm to prevent abnormal vibration phenomenon occurring in the upper and lower parts of the diaphragm, as well as to suppress the frequency of the diaphragm, the listening sound is good, middle and low It is an object of the present invention to provide a piezoelectric film speaker that is designed to widen a band.

이하 본 고안의 구성 및 작용효과를 예시된 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation effects of the present invention will be described in detail with reference to the illustrated drawings.

본 고안은 프레임(1)의 양측에다 다수개의 압전소자(2)설치시키고, 상기 압전소자(2)의 상면에는 필름진동판(3)의 일단과 타단부를 부착시키며, 상기 필름진동판(3)의 상, 하변에는 보강재(4)를 접착시켜준 구조로 되어 있다.The present invention provides a plurality of piezoelectric elements (2) on both sides of the frame (1), attaching one end and the other end of the film vibration plate (3) to the upper surface of the piezoelectric element (2), The upper and lower sides have a structure in which the reinforcing material 4 is bonded.

상기와 같은 구조로된 본 고안은 진동판(3)의 상, 하변에다 부착시킨 보강리브와 같은 보강재(4)가 진동판(3)의 진동수를 적당히 억재시켜줌으로써 진동판(3)의 상, 하부에서 진동의 불균일현상으로 인해 발생되는 이상음이 제거될 뿐만아니라 청취감이 좋은 중, 저음이 발생되도록 되어 있다.According to the present invention having the above structure, the reinforcing material 4 such as the reinforcing rib attached to the upper and lower sides of the diaphragm 3 vibrates the upper and lower parts of the diaphragm 3 by appropriately suppressing the frequency of the diaphragm 3. Not only the abnormal sound caused by the non-uniformity of the noise is removed but also the middle and low sound of a good listening feeling.

한편, 제1도는 본 고안의 사시도이고, 제2도는 제1도의 A-A선 단면도인데 진동판(3)의 상, 하변에 보강개(4)를 부착시켜 진동판(3)의 진동수를 적당히 억제함으로써 압전소자(1)로 부터 전달받은 진동음이 진동판(3)의 상하부에서 불균일하게 되는 것을 방지하도록 되어 있다.Meanwhile, FIG. 1 is a perspective view of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 and a piezoelectric element is formed by appropriately suppressing the frequency of the diaphragm 3 by attaching a reinforcement 4 to the upper and lower sides of the diaphragm 3. The vibration sound transmitted from (1) is prevented from becoming uneven in the upper and lower parts of the diaphragm 3.

또한, 제3도는 본 고안에 따른 다른 실시예로서, 진동한(3)의 상, 하변에 보강재(4)의 일단을 접착시키고 그 타단을 프레임(1)에다 연결 접속시켜준 것을 보여주고 있는데, 이는 진동판(3)의 진동수가 더욱 억제됨으로써 상기 진동판(3)의 이상진동현상이 제거되면서 중후한 중, 저음을 발생시킬수 있도록 되어 있다.In addition, FIG. 3 shows another embodiment according to the present invention, in which one end of the reinforcing material 4 is bonded to the upper and lower sides of the vibrated 3 and the other end is connected to the frame 1. The vibration frequency of the diaphragm 3 is further suppressed, so that abnormal vibration phenomenon of the diaphragm 3 can be eliminated, and heavy heavy and low sound can be generated.

상기와 같이 본 고안은 진동판(3)의 개방된 상, 하변에다 보강재(4)를 접차시켜줌으로써 종래 진동판(3)의 상하부에서 발생되던 이상음이 제거됨과 동시에 진동수가 억제되어 중, 저음 특성이 개선되는 한편, 스피커의 출력음압 특성이 향상되는 효과가 있다.As described above, the present invention contacts the reinforcing material 4 to the open upper and lower sides of the diaphragm 3 to remove abnormal sounds generated from the upper and lower parts of the diaphragm 3 at the same time. On the other hand, there is an effect that the output sound pressure characteristics of the speaker is improved.

Claims (2)

필름진동판의 일단과 타단이 압전소자의 상면에 부착설치된 압전형 필름스피커에 있어서, 상기 압전소자(2)에 연결 부착된 진동판(3)의 개방된 상, 하변에 보강재(4)를 접착시켜준 것을 특징으로 하는 압전형 필름스피커.In a piezoelectric film speaker having one end and the other end of a film vibrating plate attached to an upper surface of a piezoelectric element, the reinforcing material 4 is bonded to the open upper and lower sides of the diaphragm 3 attached to the piezoelectric element 2. Piezoelectric film speaker, characterized in that. 제1항에 있어서, 상기 보강재(4)의 하단부는 하방으로 연장시켜 프레임(1)에 각각 접착시킨 것을 특징으로 하는 압전형 필름스피커.The piezoelectric film speaker according to claim 1, wherein the lower end portion of the reinforcing member (4) extends downward and adheres to the frame (1), respectively.
KR2019860014341U 1986-09-16 1986-09-16 Piezo-electric transducer KR890006693Y1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR2019860014341U KR890006693Y1 (en) 1986-09-16 1986-09-16 Piezo-electric transducer
US07/097,628 US4820952A (en) 1986-09-16 1987-09-16 Film speaker using a piezo-electric element
JP1987140140U JPH0416558Y2 (en) 1986-09-16 1987-09-16
DE19873731132 DE3731132A1 (en) 1986-09-16 1987-09-16 FILM MEMBRANE SPEAKERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860014341U KR890006693Y1 (en) 1986-09-16 1986-09-16 Piezo-electric transducer

Publications (2)

Publication Number Publication Date
KR880007220U KR880007220U (en) 1988-05-31
KR890006693Y1 true KR890006693Y1 (en) 1989-09-30

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Application Number Title Priority Date Filing Date
KR2019860014341U KR890006693Y1 (en) 1986-09-16 1986-09-16 Piezo-electric transducer

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KR880007220U (en) 1988-05-31

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