KR930006685Y1 - Piezo-electric buzzer - Google Patents
Piezo-electric buzzer Download PDFInfo
- Publication number
- KR930006685Y1 KR930006685Y1 KR2019880015954U KR880015954U KR930006685Y1 KR 930006685 Y1 KR930006685 Y1 KR 930006685Y1 KR 2019880015954 U KR2019880015954 U KR 2019880015954U KR 880015954 U KR880015954 U KR 880015954U KR 930006685 Y1 KR930006685 Y1 KR 930006685Y1
- Authority
- KR
- South Korea
- Prior art keywords
- diaphragm
- piezoelectric element
- piezoelectric
- diameter
- buzzer
- Prior art date
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
Abstract
내용 없음.No content.
Description
제1도는 종래의 압전부저의 사시도.1 is a perspective view of a conventional piezoelectric buzzer.
제2도는 종래의 압전부저의 측면도.2 is a side view of a conventional piezoelectric buzzer.
제3도는 본 고안 압전부저의 분해사시도.3 is an exploded perspective view of the piezoelectric buzzer of the present invention.
제4도는 본 고안 압전부저의 측면도.4 is a side view of the piezoelectric buzzer of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 세라믹소체 1a : 상면1: Ceramic element 1a: Upper surface
1b : 저면 2, 2a : 은전극1b: bottom 2, 2a: silver electrode
3 : 압전소자 4 : 금속제 진동판3: piezoelectric element 4: metal diaphragm
5 : 플라스틱 진동판 6 : 리드선공5: plastic diaphragm 6: lead wire hole
7, 7a : 리드선7, 7a: lead wire
본 고안은 각종 전자기기에 사용되는 압전부저에 관한 것으로, 특히 낮은주파수 대역에서도 사용이 가능하도록 한 압전부저에 관한 것이다.The present invention relates to a piezoelectric buzzer used in various electronic devices, and more particularly, to a piezoelectric buzzer that can be used even in a low frequency band.
일반적으로 압전부저는 압전소자와 진동판으로 구성되어 상기 압전소자에 전기적에너지를 가해주면 압전소자는 기계적 운동을 하면서 이와 결합된 진동판을 진동시키게되고, 따라서 이 진동판이 대기의 공기를 진동시켜 소리가 나게되어 있다.In general, a piezoelectric buzzer is composed of a piezoelectric element and a diaphragm, and when electrical energy is applied to the piezoelectric element, the piezoelectric element vibrates the diaphragm coupled thereto while performing mechanical movement, and thus the diaphragm vibrates the air in the atmosphere to make a sound. It is.
이와 같이 동작하도록된 종래의 압전부저는 제1도 및 제2도에 도시한 바와같이 세라믹소체(1)의 상면(1a)과 저면(1b)상에 각각의 은전극(2)(2a)을 증착시킨 압전소자(3)와, 이압전소자(3)를 접착체로서 급속제인 진동판(4)과 접착시켜서 된 것으로, 이와같이 된 종래의 압전부저의 공진주파수(fr)를 낮추고자 할 경우, 즉 사람이 듣기에 가장 안정감 있는 주파수대역(1KHZ이하)으로 만들려고 할 경우 세라믹소체(1) 또는 진동판(4)의 직경을 크게하거나, 두께를 얇게 하여야 하는데 이때 세라믹소체(1)의 직경과 두께를 크게 또는 얇게할 경우 소성시 휨불량과 깨짐이 다량발생하여 작업이 어려운 실정이고, 또한 진동판(4)의 직경과 두께를 크게 또는 얇게할 경우, 원형진동판 타발시 휨불량이 발생할 뿐만 아니라 장기간 사용시 부식이 예상되고, 압착불량의 원인이 되기 때문에 제품의 수명이 단축되고, 아울러 진동판의 직경과 두께조절이 용이하지 않기 때문에 낮은 주파수 대역으로 조절사용하는데 어려운 문제점을 가지게 되었다.The conventional piezoelectric buzzer configured to operate as described above has each silver electrode 2 (2a) on the top surface 1a and the bottom surface 1b of the ceramic element 1 as shown in FIGS. When the deposited piezoelectric element 3 and the piezoelectric element 3 are bonded to the diaphragm 4, which is a rapid agent, as an adhesive, in order to lower the resonance frequency fr of the conventional piezoelectric buzzer, i.e. In order to make the most stable frequency band (1KH Z or less) for human hearing, the diameter of the ceramic element 1 or the diaphragm 4 should be increased or thinned. The diameter and thickness of the ceramic element 1 should be made thinner. When it is made large or thin, it is difficult to work due to a large amount of bending defects and cracks during firing.In addition, when the diameter and thickness of the diaphragm 4 are made large or thin, not only the bending failure occurs when the circular vibrating plate is punched, but also when used for a long time Corrosion is expected and cause of bad compression As a result, the life of the product is shortened, and the diameter and thickness of the diaphragm are not easily adjusted, which makes it difficult to adjust to a low frequency band.
본 고안은 상기와 같은 문제점을 해결하기 위하여 압전소자에 두께와 직경을 조절할 수 있는 탄성력을 갖는 플라스틱재의 원판형 진동판을 압착시켜줌으로서 진동판의 두께 및 직경을 조절할 수 있어 사용자가 원하는 낮은 주파수 대역을 용이하게 얻을 수 있도록 한 것이다.In order to solve the problems described above, the present invention compresses a disk-shaped diaphragm made of a plastic material having an elastic force capable of adjusting thickness and diameter to a piezoelectric element, thereby controlling the thickness and diameter of the diaphragm to facilitate a low frequency band desired by a user. To get it done.
이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제3도 및 제4도에 도시한 바와같이, 세라믹소체(1)의 상면(1a)과 저면(1b)상에 각각의 은전극(2)(2a)을 증착시킨 압전소자(3)와 이압전소자(3)에 접착제로 금속제인 진동판(4)을 접착형성하여서된 압전부저에 있어서, 상기 압전소자(3)의 전면에 탄성력을 갖고 두께와 직경조절이 용이한 플라스틱제인 진동판(50을 접착시키되 이진동판(5)의 일측면성에는 리드선(7a)을 삽입할 수 있는 리드선공(6)을 천설시켜서된 것이다.As shown in FIGS. 3 and 4, the piezoelectric element 3 on which the silver electrodes 2, 2a are deposited on the upper surface 1a and the lower surface 1b of the ceramic element 1, and In the piezoelectric buzzer formed by adhesively forming a metal diaphragm 4 with an adhesive to the piezoelectric element 3, the diaphragm 50 is made of plastic having elasticity and easy to adjust thickness and diameter on the entire surface of the piezoelectric element 3. In this case, the lead wire hole 6 into which the lead wire 7a can be inserted is formed in one side of the vibration plate 5.
상기와 같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above in detail.
먼저 은전극(2)(2a)을 세라믹소체(1)의 양면상에 접착시켜서된 압전소자(3)의 은전극(2)(2a)상에 리드선(7)(7a)을 각각 납땜접속시키고, 이어서 이 압전소자(3)에 일측면상에 리드선공(6)이 형성된 플라스틱재인 진동판(5)을 접착제로 접착시키되 상기 은전극(2a)의 접속된 리드선(7a)이 상기 진동판(5)의 리드선공(6)을 통하여 노출되게 하여서된 것이다.First, the lead wires 7 and 7a are respectively soldered and connected to the silver electrodes 2 and 2a of the piezoelectric element 3 by bonding the silver electrodes 2 and 2a on both surfaces of the ceramic element 1. Then, the piezoelectric element 3 is bonded to the diaphragm 5, which is a plastic material having lead wire holes 6 formed on one side thereof, with an adhesive, but the lead wire 7a of the silver electrode 2a is connected to the diaphragm 5 It is to be exposed through the lead wire (6).
이와 같이된 본 고안 압전부저의 압전소자(3)에 전기적 에너지를 가해주게되면 압전소자(3)는 기계적운동을 하면서 이에 접착된 진동판(5)을 진동시키게 된다. 따라서 진동판(5)은 진동을 하면서 대기의 공기를 진동시켜 진동음을 발하게 되는데 이 진동음 즉 공진주파수(t : 두께, r : 직경, k : 상수이다)를 발하게 된다.When electrical energy is applied to the piezoelectric element 3 of the piezoelectric buzzer as described above, the piezoelectric element 3 vibrates the diaphragm 5 attached thereto while performing mechanical movement. Accordingly, the diaphragm 5 vibrates the air in the air while vibrating to generate a vibration sound, which is a resonance sound. (t is the thickness, r is the diameter, and k is the constant).
다시말하면 공진주파수(fc)는 진동판(5)의 직경(r)이 제곱에 반비례하므로 직경(r)이 크면 클수룩 공진주파수(fc)는 점점 낮게 되는 것이다.In other words, the resonance frequency fc is inversely proportional to the diameter r of the diaphragm 5, so that the larger the diameter r, the lower the number of resonances fc.
따라서 상기 압전소자(3)에 탄성력을 갖고 두께 및 직경조절이 용이한 플라스틱재인 진동판(5)을 접착시킴으로써 사용자가 필요에 따라 플라스틱재 진동판(5)의 직경과 두께를 얼마든지 가변시킬 수 있으므로 원하는 낮은 주파수 대역을 조절하여 사용할 수 있는 것이다.Therefore, by adhering the diaphragm 5, which is a plastic material having elastic force and easy to adjust thickness and diameter, to the piezoelectric element 3, the user can change the diameter and thickness of the plastic diaphragm 5 as needed, so that the desired The lower frequency band can be adjusted.
이상에서 설명한 바와같이 본 고안은 압전부저의 낮은 주파수대역을 확장 및 가변을 용이하게 설정시켜 사용할 수 있도록 금속제인 진동판 대신에 가공성이 좋은 플라스틱재인 진동판을 사용함으로써 주파수 대역에 영향을 주는 진동판의 두께 및 직경을 사용자의 요구에 따라 간단 용이하게 조절 사용할 수 있으며, 아울러 장기간 사용시 휨이나 부식에 의한 접착성 약화로 인하여 발생되는 불량을 및 수명기간의 감소를 해소할 수 있는 이점을 제공해 주는 것이다.As described above, the present invention uses a diaphragm made of plastic with good processability instead of a metal diaphragm so that the low frequency band of the piezoelectric buzzer can be easily set and used. The diameter can be easily adjusted and used according to the needs of the user, and also provides an advantage of eliminating the defects caused by the weakening of the adhesive due to warpage and corrosion and reducing the lifespan during long-term use.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880015954U KR930006685Y1 (en) | 1988-09-30 | 1988-09-30 | Piezo-electric buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880015954U KR930006685Y1 (en) | 1988-09-30 | 1988-09-30 | Piezo-electric buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900007260U KR900007260U (en) | 1990-04-04 |
| KR930006685Y1 true KR930006685Y1 (en) | 1993-10-04 |
Family
ID=19279796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880015954U KR930006685Y1 (en) | 1988-09-30 | 1988-09-30 | Piezo-electric buzzer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930006685Y1 (en) |
-
1988
- 1988-09-30 KR KR2019880015954U patent/KR930006685Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR900007260U (en) | 1990-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4984498A (en) | Percussion transducer | |
| US4230383A (en) | Integral contact | |
| JP2003023697A (en) | Piezoelectric electroacoustic transducer and its manufacturing method | |
| JPH11355890A (en) | Piezoelectric acoustic component | |
| US3439128A (en) | Miniature ceramic microphone | |
| US4600851A (en) | Piezoelectric buzzer with circuit elements mounted on nodal areas | |
| KR930006685Y1 (en) | Piezo-electric buzzer | |
| ATE386341T1 (en) | ELECTROMECHANICAL TRANSDUCER HAVING AT LEAST ONE PIEZOELECTRIC ELEMENT | |
| JPH10108297A (en) | Piezoelectric sounding body | |
| JPH10164694A (en) | Piezoelectric speaker | |
| JP2002238094A (en) | Piezoelectric acoustic part and method for manufacturing the same | |
| JPS5780898A (en) | Piezoelectric ceramic transducer | |
| JPS59128813A (en) | Piezoelectric oscillator | |
| JPH088677A (en) | Piezoelectric parts | |
| JP2000305573A (en) | Piezoelectric sound part | |
| JPH0884396A (en) | Piezoelectric speaker | |
| JPS5838717Y2 (en) | Sealed button type piezoelectric sounding element | |
| JPS60187799A (en) | Piezoelectric fan | |
| JPH03270310A (en) | Piezoelectric vibrator | |
| JPH0131640B2 (en) | ||
| JPH09307996A (en) | Piezoelectric speaker | |
| JPH0658700U (en) | Ultrasonic transducer | |
| JPS5837200Y2 (en) | Sealed button piezoelectric sounding element | |
| JPS6098795A (en) | Piezo-electric electroacoustic transducer | |
| JPS596082B2 (en) | Piezoelectric vibrator holding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19961122 Year of fee payment: 5 |
|
| LAPS | Lapse due to unpaid annual fee |