KR900003307Y1 - A speaker with piezo-electric transducers - Google Patents
A speaker with piezo-electric transducers Download PDFInfo
- Publication number
- KR900003307Y1 KR900003307Y1 KR2019860014342U KR860014342U KR900003307Y1 KR 900003307 Y1 KR900003307 Y1 KR 900003307Y1 KR 2019860014342 U KR2019860014342 U KR 2019860014342U KR 860014342 U KR860014342 U KR 860014342U KR 900003307 Y1 KR900003307 Y1 KR 900003307Y1
- Authority
- KR
- South Korea
- Prior art keywords
- speaker
- vibration
- diaphragm
- film
- frame
- Prior art date
Links
- 239000011358 absorbing material Substances 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 description 8
- 230000003749 cleanliness Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
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
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- 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
제1도는 본 고안의 사시도.1 is a perspective view of the present invention.
제2도는 제1도에서의 A-A선 단면도.2 is a cross-sectional view taken along the line A-A in FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 프레임 2 : 압전소자1 frame 2 piezoelectric element
3 : 필름진동판 4 : 진동흡음재3: film vibration plate 4: vibration absorbing material
5 : 엣지커버5: Edge Cover
본 고안은 압전형 필름스피커에 관한 것으로, 진동판의 좌, 우변을 진동흡음재를 매개로 하여 프레임과 엣지커버사이에다 접속시켜서 진동판의 이상 진동현상을 방지하고, 중, 저음 대역을 넓혀줌으로써 스피커의 음질을 개선시킨 압전형 필름 스피커에 관한 것이다.The present invention relates to a piezoelectric film speaker, and the left and right sides of the diaphragm are connected between the frame and the edge cover through the vibration absorbing material to prevent abnormal vibration of the diaphragm, and to widen the mid and low bands, thereby improving the sound quality of the speaker. The present invention relates to a piezoelectric film speaker.
일반적으로 압전형 스피커는 기계적인 힘을 가하면 대전형상이 나타나게 되고, 그 역으로 결정을 전계속에 놓게 되면 기계적으로 찌그러지는 성질을 갖는 압전소자에 전압이 인가되어 기계적 변형 즉 진동이 일어나게 되는바, 이 진동을 진동판에 전달해서 음압을 발생시키도록 된 것으로, 다이나믹형 스피커에 비해 부피가 적고, 중량 또한 가벼워 천장에 달거나 벽에 걸어서 사용할 수 있으며, 조립이 간단하여 대량생산이 가능하도록 되어 있었으나 압전소자의 진동특성으로 인해 청취감이 좋은 중·저음을 발생시키지 못하여 고음전용 스피커나 신호용 부저등에만 사용해야 하는 제한이 따랐으며, 특히 고음 스피커에서는 압전소자 특유의 금속성 재생음이 발생되는 등의 문제가 초래되었는바, 이를 보완하기 위해 필름진동판을 이용한 압전형 필름스피커가 개발되었으며 이 또한 진동판의 좌, 우측부가 개방되어 있는 관계로 압전소자로부터 전달되는 진동판의 진동현상이 상기 진동판의 상, 하부에서 불균일하게 됨에 따라 이상음을 발생시키게 되는 문제점이 있었다.In general, a piezoelectric speaker has a charging force when mechanical force is applied, and conversely, when a crystal is placed on the front, a voltage is applied to a piezoelectric element having a mechanical distortion property, thereby causing mechanical deformation, or vibration. It transmits the vibration to the diaphragm to generate sound pressure. It is smaller in volume and lighter than the dynamic speaker, so it can be used on the ceiling or on the wall. Due to the vibration characteristics of the speaker, it was not possible to generate a good mid / bass sound with a good sense of listening, so it was necessary to use it only for loud speakers or signal buzzers. Bar, piezoelectric film using film vibration plate to compensate for this Picker was developed there was also a problem vibration of the vibration plate that is transmitted from the piezoelectric elements in relation to which the left and right side opening portion of the vibration plate is being thereby generating an abnormal sound as non-uniform in the upper and lower portions of the vibration plate.
이에 본 고안은 상기와 같은 문제점을 해결하기 위해 진동판의 좌·우측에서 일어나는 이상 진동현상을 방지하여 이상음을 제거시킴과 더불어 진동수를 적당히 억제시켜 청취감이 좋은 중·저음 대역을 넓히도록 된 압전형 필름스피커를 제공하고자 함에 그 목적이 있다.In order to solve the above problems, the present invention prevents abnormal vibrations occurring at the left and right sides of the diaphragm to remove abnormal sounds and moderately suppresses the frequency to widen the mid and bass bands with a good listening feeling. The purpose is to provide a typical film speaker.
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)를 설치시키고, 상기 압전소자(2)의 상면에는 필름진동판(3)의 일단과 타단을 부착 설치시키되 상기 필름진동파(3)의 좌·우변을 진동흡음재(4)를 매개로 하여 프레임(1)과 엣지커버사이에 간접 고정시킨 구조로 되어있다.The present invention is provided with a plurality of piezoelectric elements (2) on both sides of the frame (1), one end and the other end of the film vibration plate (3) is attached to the upper surface of the piezoelectric element (2), the film vibration wave (3) The left and right sides of the frame are indirectly fixed between the frame 1 and the edge cover via the vibration absorbing material 4.
상기와 같은 구조로된 본 고안은 진동판(3)의 좌·우변을 고무나 스폰지 및 부직포등의 진동흡음재(4)를 매개로 하여 프레임(1)과 엣지커버(5)사이에 간접 고정시켜 줌으로써 진동판(3)의 상, 하부에서 일어나는 진동의 불균일현상을 제거시킬 뿐만 아니라 진동판(3)의 진동수를 억제시켜 줌으로써 이상음의 제거와 함께 청위감이 좋은 중·저음을 발생시키도록 되어 있다.The present invention having the above structure by indirectly fixing the left and right sides of the diaphragm (3) between the frame (1) and the edge cover (5) via a vibration absorbing material (4), such as rubber, sponge and nonwoven fabrics. Not only does it eliminate the nonuniformity of the vibration occurring in the upper and lower parts of the diaphragm 3, but also suppresses the frequency of the diaphragm 3, thereby eliminating the abnormal sound and generating the mid / low bass sound with good cleanliness.
한편 제1도는 본 고안의 사시도이고, 제2도는 제1도에서의 A-A선 단면도로서, 진동판(3)의 좌·우변이 진동흡음재(4)를 매개로 프레임(1)과 엣지커버(5)사이에 간접 고정되어 있는 것을 보여 주고 있는데, 상기 진동흡음재(4)가 상기 진동판(3)의 상, 하부에서 일어나는 이상 진동파를 흡수하게 되어 이상음을 제거함과 동시에 음의 높낮이를 결정하는 진동판(3)을 적당히 지지해 줌으로써 불량공진현상이 제거되어 청취감이 좋은 중·저음이 발생되도록 되어 있다.1 is a perspective view of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and the left and right sides of the diaphragm 3 have a frame 1 and an edge cover 5 via the vibration absorbing material 4. While being indirectly fixed therebetween, the vibration absorbing material 4 absorbs the abnormal vibration wave generated in the upper and lower parts of the diaphragm 3 to remove the abnormal sound and at the same time determines the height of the sound ( By appropriately supporting 3), the poor resonance phenomenon is eliminated and the middle and bass sound with a good listening feeling is generated.
상기와 같은 본 고안은 진동판(3)의 좌·우변을 프레임(1)과 엣지커버(5)사이에 진동흡음재(4)를 매개로 간접 고정시킴으로써 종래 진동판(3)의 상·하부에서 발생되던 이상음이 제거됨과 더불어 진동판(3)을 적당히 지지해 줌으로써 불량공진 현상이 제거되어 청취감이 양호한 중·저음 특성이 개선되는 한편 스피커의 출력음압특성을 향상시키는 효과가 있다.The present invention as described above, by indirectly fixing the left and right sides of the diaphragm (3) between the frame (1) and the edge cover (5) by the medium of the vibration absorbing material (4) was generated in the upper and lower parts of the conventional diaphragm (3) The abnormal sound is removed, and the diaphragm 3 is appropriately supported to remove the poor resonant phenomena, thereby improving the mid and low bass characteristics of a good listening feeling, and improving the output sound pressure characteristics of the speaker.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860014342U KR900003307Y1 (en) | 1986-09-16 | 1986-09-16 | A speaker with piezo-electric transducers |
| JP1987140140U JPH0416558Y2 (en) | 1986-09-16 | 1987-09-16 | |
| DE19873731132 DE3731132A1 (en) | 1986-09-16 | 1987-09-16 | FILM MEMBRANE SPEAKERS |
| US07/097,628 US4820952A (en) | 1986-09-16 | 1987-09-16 | Film speaker using a piezo-electric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860014342U KR900003307Y1 (en) | 1986-09-16 | 1986-09-16 | A speaker with piezo-electric transducers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880007221U KR880007221U (en) | 1988-05-31 |
| KR900003307Y1 true KR900003307Y1 (en) | 1990-04-20 |
Family
ID=19255754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860014342U KR900003307Y1 (en) | 1986-09-16 | 1986-09-16 | A speaker with piezo-electric transducers |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900003307Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100851036B1 (en) * | 2006-05-08 | 2008-08-12 | (주)필스 | Film speaker |
-
1986
- 1986-09-16 KR KR2019860014342U patent/KR900003307Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880007221U (en) | 1988-05-31 |
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