KR900003306Y1 - A speaker with piezo-electric transducers - Google Patents
A speaker with piezo-electric transducers Download PDFInfo
- Publication number
- KR900003306Y1 KR900003306Y1 KR2019860011587U KR860011587U KR900003306Y1 KR 900003306 Y1 KR900003306 Y1 KR 900003306Y1 KR 2019860011587 U KR2019860011587 U KR 2019860011587U KR 860011587 U KR860011587 U KR 860011587U KR 900003306 Y1 KR900003306 Y1 KR 900003306Y1
- Authority
- KR
- South Korea
- Prior art keywords
- speaker
- piezoelectric
- frame
- diaphragm
- piezoelectric element
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 206010044565 Tremor Diseases 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
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- 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
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 본 고안에 따른 스피커의 평면도.1 is a plan view of a speaker according to the present invention.
제2도는 본 고안에 따른 스피커의 단면도이다.2 is a cross-sectional view of a speaker according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 4각 진동판 2 : 프레임1: square diaphragm 2: frame
3 : 가스켓 4 : 엣지3: gasket 4: edge
5 : 압전소자 6 : 진동전달매체5 piezoelectric element 6 vibration transmission medium
본 고안은 압전형 필름 스피커에 관한 것으로, 특히 프레임 중앙부위에 일직선상에서 다수의 압전소자를 설치하고, 이 압전소자들에 대해 프레임양측에 고정된 4각 필름진동판의 중앙부위를 점접촉으로 부착시켜 줌으로써 음성특성을 개선시킨 압전형필름 스피커에 관한 것이다.The present invention relates to a piezoelectric film speaker, and in particular, a plurality of piezoelectric elements are installed in a straight line at the center portion of the frame, and the center portions of the quadrilateral film vibration plates fixed to both sides of the frame are attached to the piezoelectric elements by point contact. The present invention relates to a piezoelectric film speaker having improved voice characteristics by zooming.
일반적으로 스피커는 전류신호를 음성신호로 재생시켜 주는 장치로서, 이러한 원리를 이용하여 통상 다이나믹형 스피커가 가장 널리 사용되고 있는바, 이는 마그네트와 상하부 플레이트등으로 구성된 자기 회로내에 보이스코일을 설치하여 음성전류신호에 따라 상하 반복운동시켜 줌으로써 보이스코일에 연결된 진동판을 진동시켜 음성신호를 재생하도록 되어 있다.In general, a speaker is a device that reproduces a current signal as a voice signal. By using this principle, a dynamic speaker is generally used most widely. This is achieved by installing a voice coil in a magnetic circuit composed of a magnet and an upper and lower plate. By repeating the vertical movement in accordance with the signal to vibrate the diaphragm connected to the voice coil to reproduce the voice signal.
그런데, 이와 같은 스피커에는 마그네트와 보이스코일 및 진동판을 비롯한 많은 구성부품에 필요하게 되므로 그 구조가 매우 복잡할 뿐만 아니라 이로 인해 부피가 커지고 생산비용이 많이 들게 되는 폐단이 있었으며, 특히 주위 환경이 고온다습한 경우 스피커위 주요부에 습기다 차게 되고, 그로 인해 자기회로가 불안정하게 되어 명로도가 저하되고 음의 찌그러짐이 발생하게 되는 문제점이 있었다.However, such a speaker is required for many components including magnets, voice coils, and diaphragms, and thus, its structure is not only complicated, but also results in a bulky and expensive production cost, and especially a high temperature and humidity environment. In one case, the main part of the speaker is filled with moisture, and as a result, the magnetic circuit becomes unstable, resulting in a decrease in brightness and distortion of sound.
한편, 압전소자는 전압을 가할 경우 기계적 진동을 일으키는 특성을 갖고 있는바, 최근에는 이러한 특성을 이용하여 음성신호를 재생하도록 된 압전형 스피커가 개발되어 갑싸고 구조가 간단한 스피커로서 제공되고 있고, 이러한 압전형 스피커로는 4각 형태의 아아치형 필름진동판이나 원형태의 돔형 필름진동판을 사용한 압전형 스피커가 그 대표적이라 할 수 있다.On the other hand, the piezoelectric element has a characteristic of causing mechanical vibration when a voltage is applied, and recently, a piezoelectric speaker that has been developed to reproduce a voice signal using this characteristic has been developed as a cheap and simple structure speaker. As the piezoelectric speaker, a piezoelectric speaker using a quadrangular arch type film vibration plate or a circular dome type film vibration plate may be representative.
그러나, 이러한 종래 압전형 스피커는 진동판을 둘레로 압전소자가 부착되면서 상기 압전소자 상하반복 운동으로 진동판이 진동하기 때문에 음의 분할 공전 현상이 일어나게 되어 음이 상쇄되는 현상이 발생되므로 원음의 정확한 재생이 곤란하게 된다는 문제점이 있었다.However, in the conventional piezoelectric speaker, the piezoelectric element is attached around the diaphragm, and the diaphragm vibrates due to the up and down repetitive movement of the piezoelectric element. There was a problem that became difficult.
이에, 본 고안은 상기와 같은 종래 압전형 스피커의 문제점을 해결함과 더불어 다이나믹 스피커와 같은 폭넓은 음대역을 갖도록 하기 위해 4각진동판을 프레임양측에 고정시키는 한편, 프레임중앙부에 일렬로 설치된 다수의 압전소자상에 상기 진동판에 중앙부위를 부착시킴으로써 충분한 음량을 낼수 있을 뿐만 아니라 값싸고 구조가 간단한 압전형 필름 스피커를 제공하는 데 그 목적이 있다.Therefore, the present invention solves the problems of the conventional piezoelectric speaker as described above, while fixing the quadrilateral vibrating plate on both sides of the frame so as to have a wide sound band such as a dynamic speaker, It is an object of the present invention to provide a piezoelectric film speaker which is inexpensive and simple in structure as well as providing a sufficient volume by attaching a central portion to the diaphragm on a piezoelectric element.
이하 본 고안의 구성 및 작용 효과를 예시된 도면에 의거 하여 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the illustrated drawings.
본 고안은 4각진동판(1)의 양단을 프레임(2)양측에 설치된 가스켓(3)과 스폰지재질의 엣지(4)사이에 설치고정시키고, 프레임(2)중앙부에는 일렬로 다수의 압전소자(5)들을 설치하되 상기 압전소자(5)상면에는 진동전달 매체(6)를 설치함과 더불어 상기 진동판(1)의 중앙부위가 부착되도록 한 구조로 되어 있다.According to the present invention, both ends of the square vibrating plate 1 are fixed between the gasket 3 installed on both sides of the frame 2 and the edge 4 of the sponge material, and a plurality of piezoelectric elements are arranged in a row at the center of the frame 2. 5) are installed, but the vibration transmission medium 6 is installed on the upper surface of the piezoelectric element 5, and the central portion of the diaphragm 1 is attached.
상기와 같은 구조를 갖는 본 고안은 다이나믹 스피커와 같이 진동매체를 프레임(2)중앙부위에 설치하고 진동판(1)의 양단을 프레임(2)양측면에 설치고정함으로써 종래 압전형 스피커에서 발생하는 음의 분할 공정형상을 배제하도록 된 것으로, 제1도에서 도시한 본 고안 스피커의 평면도에 의하면 4각진동판(1)양단을 프레임(2)양측면에 설치고정시키는 한편, 프레임(2)중앙부위에 일렬로 설치된 다수의 압전소자(5)상부에서 상기 진동판(1)의 중앙부위가 점접촉으로 부착되되 상기 압전소자(5)와 진동판(1)은 상기 압전소자(5)상면에 설치되는 진동전달매체(6)을 매개로 상호 부착되도록 하는 바, 상기 진동전달매체(6)은 가볍고 견고한 재질을 사용함으로써 진동전달특성을 보다 효율적으로 얻을 수 있도록 되어 있다.According to the present invention having the structure as described above, the vibration medium is installed at the center of the frame (2) like the dynamic speaker, and both ends of the diaphragm (1) are fixed at both sides of the frame (2) to generate negative sound. According to the plan view of the speaker of the present invention shown in FIG. 1, the two-sided vibrating plate 1 is fixed to both sides of the frame 2 while being fixed in line with the center of the frame 2. The center portion of the diaphragm 1 is attached to the point contact on the plurality of piezoelectric elements (5) installed, the piezoelectric element (5) and the diaphragm (1) is a vibration transfer medium installed on the piezoelectric element (5) 6) to be attached to each other through the bar, the vibration transmission medium 6 is to be able to obtain the vibration transmission characteristics more efficiently by using a light and solid material.
제2도는 본 고안 압전형필름 스피커의 단면도로서, 프레임(2)양측면에 가스켓(3)과 스폰지재질의 엣지(4)를 설치하고, 그 사이에 지동판(1)의 양단을 삽입고정시킴으로써 압전소자(5)의 동작으로 상기 진동판(1)이 진동할 경우 부드러운 재질로 된 상기 엣지(4)도 진동판(1)과 함께 떨림이 일어나게 되므로 종래 상기 엣지(1)를 딱딱한 재질을 사용함으로 인한 음의 감쇄율을 줄일수가 있다.FIG. 2 is a cross-sectional view of the piezoelectric film speaker of the present invention, and the gasket 3 and the sponge-like edge 4 are provided on both sides of the frame 2, and the both ends of the moving plate 1 are inserted therebetween to fix the piezoelectric element. When the diaphragm 1 vibrates by the operation of the device 5, the edge 4 made of a soft material also vibrates along with the diaphragm 1, so that the edge 1 is made by using a hard material. Can reduce the attenuation rate.
한편, 프레임(2)중앙부위에 일렬 설치된 압전소자(5) 상면에는 진동전달매체(6)를 매개로 하여 진동판(1)의 중앙부위가 부착되도록 함으로써 압전소자(5)의 진동을 진동판(1)에 최대로 전달할 수 있도록 되어 있다.On the other hand, the upper surface of the piezoelectric element (5) installed in the center portion of the frame (2) is attached to the center portion of the diaphragm (1) via the vibration transmission medium (6) to the vibration of the piezoelectric element (5) to the vibration plate (1). ) Can be delivered at maximum.
이와 같이 본 고안은 진동판(1)을 프레임(2)양측면에 설치 고정시키고, 상기 진동판(1)의 중앙부위를 프레임(2)중앙에 일렬로 설치된 다수의 압전소자(5)들에 점접촉으로 부착시켜 다이나믹형 스피커와 같은 구조를 취함으로서 폭 넓은 음대역을 갖도록 하며, 또한 상기 진동판(1)을 고정시키기 위해 부드러운 재질의 엣지(1)를 프레임(2)양측면에 설치하여 4각진동판(1)과 함께 떨림이 이루어지도록 함으로써 저음의 감쇄현상을 배제할 수 있는 효과가 있다.As described above, the present invention fixes the diaphragm 1 at both sides of the frame 2, and the center portion of the diaphragm 1 is in point contact with a plurality of piezoelectric elements 5 installed in a line at the center of the frame 2. By attaching a structure such as a dynamic speaker to have a wide sound band, and in order to fix the diaphragm (1), a soft edge (1) is installed on both sides of the frame (2) to form a four-side vibration plate (1) ), So that the trembling is made to eliminate the attenuation of the bass.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860011587U KR900003306Y1 (en) | 1986-07-31 | 1986-07-31 | A speaker with piezo-electric transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860011587U KR900003306Y1 (en) | 1986-07-31 | 1986-07-31 | A speaker with piezo-electric transducers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880003752U KR880003752U (en) | 1988-04-14 |
| KR900003306Y1 true KR900003306Y1 (en) | 1990-04-20 |
Family
ID=19254595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860011587U KR900003306Y1 (en) | 1986-07-31 | 1986-07-31 | A speaker with piezo-electric transducers |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900003306Y1 (en) |
-
1986
- 1986-07-31 KR KR2019860011587U patent/KR900003306Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880003752U (en) | 1988-04-14 |
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