KR890007668Y1 - Piezo film speaker - Google Patents
Piezo film speaker Download PDFInfo
- Publication number
- KR890007668Y1 KR890007668Y1 KR2019860015012U KR860015012U KR890007668Y1 KR 890007668 Y1 KR890007668 Y1 KR 890007668Y1 KR 2019860015012 U KR2019860015012 U KR 2019860015012U KR 860015012 U KR860015012 U KR 860015012U KR 890007668 Y1 KR890007668 Y1 KR 890007668Y1
- Authority
- KR
- South Korea
- Prior art keywords
- vibration
- film
- piezoelectric
- film speaker
- transfer medium
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래 압전 스피커의 진동부를 확대한 단면도.1 is an enlarged cross-sectional view of a vibration unit of a conventional piezoelectric speaker.
제2도는 종래 압전형 필름스피커의 진동부를 확대한 단면도.2 is an enlarged cross-sectional view of a vibration part of a conventional piezoelectric film speaker.
제3도는 본 고안에 따른 압전형 필름스피커의 진동부를 확대한 단면도이다.3 is an enlarged cross-sectional view of a vibration part of the piezoelectric film speaker according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 압전소자 2 : 진동전달매개체1: piezoelectric element 2: vibration transfer medium
3 : V자홈 4 : 필름진동판3: V groove 4: Film vibration plate
5 : 절곡부5 bend
본 고안은 다수개의 압전소자를 이용한 압전형 필름스피커에 관한 것으로, 특히 압전소자의 진동을 필름진동판에 전달하는 진동 전달매개체의 상면에 V자홈을 형성시켜 필름진동판을 결합시켜줌으로써 음압레벨을 향상시킬 뿐만아니라 작없성이 용이하도록 한 압전형 필름 스피커에 관한 것이다.The present invention relates to a piezoelectric film speaker using a plurality of piezoelectric elements, in particular, to form a V-shaped groove on the upper surface of the vibration transmission medium for transmitting the vibration of the piezoelectric element to the film vibration plate to combine the film vibration plate to improve the sound pressure level In addition, the present invention relates to a piezoelectric film speaker that facilitates workability.
전압을 인가시켜줌에 따라 기계적 진동을 일으키는 압전소자를 이용한 압전형 스피커(제1도)는 부피가 비교적 적고 천정에 달거나 별에 걸어서 사용할 수 있으나, 이러한 압전형스피커는 압전소자의 진동 특성으로 인해 청취감이 좋은 중, 저음을 발생시키지 못하여 고음전용 스피커나 신호용 부저등에만 사용해야 하는 제한이 따르고 있었다.Piezoelectric speakers (Piece 1) using piezoelectric elements that generate mechanical vibrations by applying a voltage are relatively small in volume and can be used on the ceiling or on a star, but such piezoelectric speakers can be heard due to the vibration characteristics of the piezoelectric elements. While there was a good sense of sound, it was not possible to generate low bass, which had to be used only for loud speakers and signal buzzers.
그리고 특히 고음스피커에서는 압전소자 특유의 금속성 재생음이 발생되는 등의 문제점이 유발되었는 바, 최근 이를 보완하여 필름진동판을 이용한 압전형 필름스피커(제2도)가 개발되었는 데, 이는 다수개의 압전소자를 이용한 필름스피커로써 필름진동판과 압전소자의 사이에 진동전달매개체가 설치되어 있어 압전소자로 부터의 진동을 필름진동판에 전달하여 음향출력을 내도록 한 것이다.In particular, in the high-pitched loudspeaker, problems such as the generation of metallic regenerated sound peculiar to piezoelectric elements are caused. Recently, a piezoelectric film speaker (FIG. 2) using a film vibrating plate has been developed. As the film speaker used, a vibration transfer medium is installed between the film vibration plate and the piezoelectric element to transmit the vibration from the piezoelectric element to the film vibration plate to produce sound output.
그런데 상기와 같은 압전형 필름스피커의 음향출력은 진동전달매개체와 필름진동판의 조립상태에 따라 그 특성이 좌우되어짐에 따라, 즉 압전소자의 중심부 공진을 이용하여 음향출력을 얻기 때문에 진동전달매개체의 크기를 크게하면 그 진동하는 중심부 면적을 좁게하는 결과가 되어 진동전달매개체의 크기를 작게 할 수 밖에 없었으며, 그에 따라 진동전달매개체의 크기를 작게하면 진동전달매개체와 필름진동판의 조립작업이 까다롭게되어 생산성이 떨어지는 문제점이 있었다.By the way, the acoustic output of the piezoelectric film speaker as described above is dependent on the assembly state of the vibration transmission medium and the film vibration plate, that is, the size of the vibration transmission medium because the sound output is obtained by using the central resonance of the piezoelectric element. Increasing the size of the vibrating core resulted in narrowing the area of the vibrating transfer medium, and the size of the vibrating transfer medium was inevitably reduced. There was a falling issue.
이에 본 고안에서는 상기와 같은 종래의 문제점을 해결하여, 압전소자의 진동력의 중간 전달과정에서 손실없이 전달되어 음압레벨이 상승될 뿐만아니라 조립작업이 용이하여 생산성이 향상될 수 있도록 필름진동판과 압전소자의 사이에 설치되는 진동전달매개체의 상면에 V자홈을 형성시켜, 필름진동판의 절곡부를 상기 V자홈에 삽입결합시켜주도록 된 압전형 필름스피커를 제공하는데 그 목적이 있다.Therefore, the present invention solves the conventional problems as described above, the film vibrating plate and the piezoelectric so as not only to increase the sound pressure level is increased in the intermediate transfer process of the vibration force of the piezoelectric element, but also to facilitate the assembly work productivity. It is an object of the present invention to provide a piezoelectric film speaker that forms a V-shaped groove on an upper surface of a vibration transfer medium provided between devices, thereby inserting a bent portion of a film vibration plate into the V-shaped groove.
이하 본 고안의 구성 및 작용효과를 첨부된 예시도면에 의거 상세히 설명하면 다음과 같다.Hereinafter will be described in detail based on the accompanying drawings and the configuration and effect of the present invention.
본 고안은 압전소자(1)의 상면에다 진동전달매개체(2)를 부착 설치하고, 그 진동전달매개체(2)의 상면에는 V자홈(3)을 형성시키되 V자홈(3)에는 필름진동판(4)의 절곡부(5)를 삽입결합시켜 놓은 구조로 되어 있다.The present invention attaches and installs a vibration transfer medium (2) on the upper surface of the piezoelectric element (1), and forms a V-shaped groove (3) on the upper surface of the vibration transfer medium (2), but the film vibration plate (4) in the V-shaped groove (3). ) Is a structure in which the bent portion 5 of "
미설명 부호 6은 접착제이다.Reference numeral 6 is an adhesive.
상기와 같은 구조로 된 본 고안은, 제2도에 도시된 바와 같이, 진동전달매개체(2)의 상면에 필름진동판(4)의 절곡부(5)를 단순히 올려 놓아 접착제(6)로 진동전달매개체(2)와 필름진동판(4)의 절곡부(5)를 부착 결합시켜 주도록 된 종래의 접착방식을 개선시켜, 조립이 용이할 뿐만아니라 음압레벨을 향상시킬 수 있도록 한 것이다.According to the present invention having the structure as described above, as shown in FIG. 2, the bent portion 5 of the film vibration plate 4 is simply placed on the upper surface of the vibration transfer medium 2 to vibrate transfer with the adhesive 6. The conventional bonding method for attaching and bonding the bent portion 5 of the medium 2 and the film vibrating plate 4 is improved, so that the assembling is easy and the sound pressure level can be improved.
다시 말하면, 제3도에 도시된 바와 같이 압전소자(1)의 상면에 부착 설치된 진동전달매개체(2)의 상면에 V자홈(3)을 형성시켜, 필름진동판(4)의 휨이 균형을 이루도록 할 뿐만아니라 필름진동판(4)의 절곡부(5)를 삽입 결합시켜 놓은 것이다.In other words, as shown in FIG. 3, the V-shaped groove 3 is formed on the upper surface of the vibration transmission medium 2 attached to the upper surface of the piezoelectric element 1, so that the warpage of the film vibration plate 4 is balanced. In addition, the bent portion 5 of the film vibration plate 4 is inserted into the coupling.
이와 같은 본 고안은 진동전달매개체(2)의 V자홈(3)에 필름진동판(4)의 절곡부(5)를 삽입 결합시켜줌으로써, 일일이 절곡부(5)를 진동전달매개체(2)의 중심부에 위치시켜 접착제(6)로 고정 결합시킬 필요가 없게 되고, 그에따라 작업성이 용이하며 생산성이 향상될 뿐만아니라, 압전소자(1)의 진동력이 중간 전달과정에서 손실되지않아 높은 음압레벨을 얻을 수 있는 효과가 있다.The present invention is such that the bent portion 5 of the film vibrating plate 4 is inserted into the V-shaped groove 3 of the vibration transfer medium 2, thereby bending the bent portion 5 centrally of the vibration transfer medium 2. There is no need to be fixedly bonded to the adhesive (6), thereby improving the workability and productivity, as well as the vibration force of the piezoelectric element (1) is not lost in the intermediate transfer process to achieve a high sound pressure level There is an effect that can be obtained.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860015012U KR890007668Y1 (en) | 1986-09-30 | 1986-09-30 | Piezo film speaker |
| DE19873731132 DE3731132A1 (en) | 1986-09-16 | 1987-09-16 | FILM MEMBRANE SPEAKERS |
| JP1987140140U JPH0416558Y2 (en) | 1986-09-16 | 1987-09-16 | |
| 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 |
|---|---|---|---|
| KR2019860015012U KR890007668Y1 (en) | 1986-09-30 | 1986-09-30 | Piezo film speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880007237U KR880007237U (en) | 1988-05-31 |
| KR890007668Y1 true KR890007668Y1 (en) | 1989-10-31 |
Family
ID=19256005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860015012U KR890007668Y1 (en) | 1986-09-16 | 1986-09-30 | Piezo film speaker |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890007668Y1 (en) |
-
1986
- 1986-09-30 KR KR2019860015012U patent/KR890007668Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880007237U (en) | 1988-05-31 |
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