JPS6129298A - Piezoelectric transducer - Google Patents
Piezoelectric transducerInfo
- Publication number
- JPS6129298A JPS6129298A JP15004684A JP15004684A JPS6129298A JP S6129298 A JPS6129298 A JP S6129298A JP 15004684 A JP15004684 A JP 15004684A JP 15004684 A JP15004684 A JP 15004684A JP S6129298 A JPS6129298 A JP S6129298A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- insulator
- element disc
- spring terminal
- thermosetting resin
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 4
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012815 thermoplastic material 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、例えば電話器の送受話器等に用いる圧電型変
換器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piezoelectric transducer used, for example, in a telephone handset.
下にこの従来例の構成について第１図、第２図とともに
説明する。第１図及び第２図において１はケース、２は
金属円板、３は圧電素子円板であシ、圧電素子円板３は
第２図のように、電極４及び５を有し分極されている。The configuration of this conventional example will be explained below with reference to FIGS. 1 and 2. In FIGS. 1 and 2, 1 is a case, 2 is a metal disk, and 3 is a piezoelectric element disk. As shown in FIG. 2, the piezoelectric element disk 3 has electrodes 4 and 5 and is polarized. ing.
金属円板２と圧電素子円板３は、電極４を介して接着剤
にて密着され、圧電バイモルフ型の振動板を構成してい
る。６は熱可塑性材料からなり、背気室７を構成するだ
めの絶縁体、１０は絶縁体６に設けられた複数個の空気
漏洩用小孔、１１は音響抵抗材で空気漏洩用小孔１０上
に貼りつけられている。８は入力リード線で、その一端
は圧電素子円板上の電極５にノ・ンダ付され、他端は入
力端子９に導出され、ノ・ンダ付されている。又、金属
円板側の電極４は、ケース１に電気的に接続されている
。しかしながら、上記従来例においてはリード線８を電
極５あるいは、入力端子９にハンダ付にて接続している
だめ、熱による圧電素子円板の劣化及び絶縁体の変形が
生じる問題点があった。The metal disc 2 and the piezoelectric element disc 3 are adhered to each other with an adhesive via an electrode 4, and constitute a piezoelectric bimorph type diaphragm. Reference numeral 6 is an insulator made of a thermoplastic material and constitutes the back air chamber 7; 10 is a plurality of small holes for air leakage provided in the insulator 6; 11 is an acoustic resistance material and has small holes for air leakage 10; pasted on top. Reference numeral 8 denotes an input lead wire, one end of which is soldered to the electrode 5 on the piezoelectric element disk, and the other end led out to an input terminal 9 and soldered. Further, the electrode 4 on the metal disk side is electrically connected to the case 1. However, in the conventional example, since the lead wire 8 is connected to the electrode 5 or the input terminal 9 by soldering, there is a problem that the piezoelectric element disk deteriorates due to heat and the insulator deforms.
発明の目的
本発明は、上記従来例の問題点を除去するものであシ、
熱による圧電素子円板の劣化及び絶縁体の変形を防止し
、容易に組立てられるようにすることを目的とするもの
である。OBJECT OF THE INVENTION The present invention eliminates the problems of the above-mentioned conventional example.
The purpose is to prevent deterioration of the piezoelectric element disk and deformation of the insulator due to heat, and to facilitate assembly.
発明の構成
本発明は上記目的を達成するために、圧電素子円板と金
属円板を貼り合わせた圧電バイモルフ型の振動板と上記
振動板の周辺部を支持し、かつ背気室を構成する熱硬化
性樹脂からなる絶縁体と基部を上記絶縁体にリベットに
て固定し、先端部を上記圧電素子円板に圧接させたバネ
端子とから構成されるもので、ハンダ付の熱による劣化
、変形の防止を組立の簡単化を図るものである。Structure of the Invention In order to achieve the above object, the present invention includes a piezoelectric bimorph type diaphragm made by bonding a piezoelectric element disk and a metal disk together, supports a peripheral portion of the diaphragm, and forms a back air chamber. It is composed of an insulator made of thermosetting resin and a spring terminal whose base is fixed to the insulator with rivets and whose tip is pressed into contact with the piezoelectric disk. This is to prevent deformation and simplify assembly.
実施例の説明
以下に本発明の一実施例の構成について、第３図ととも
に説明する。第３図において、１〜１１は第１図と同様
である。１２は熱硬化性樹脂によって形成された絶縁体
、１３は金属板で成形されたバネ端子で、その基部は絶
縁体１２に平リベット１５でカシメ固定されておシ、そ
の先端には折曲部１４が設けられ、圧電素子円板３に圧
接されている。DESCRIPTION OF EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to FIG. In FIG. 3, 1 to 11 are the same as in FIG. 1. 12 is an insulator made of thermosetting resin, 13 is a spring terminal made of a metal plate, the base of which is fixed to the insulator 12 with a flat rivet 15, and the tip thereof has a bent part. 14 is provided and is pressed against the piezoelectric element disk 3.
次に上記実施例の動作について説明する。第３図におい
て、平リベット１５とケース１の間に音声電気信号を加
えると、圧電素子円板３°に径方向の力が発生し、たわ
み振動が起き、音響エネルギーに変換される。本実施例
においては、第３図のように、絶縁体１２に熱硬化性樹
脂を使用しているので、入力端子を兼ねている。平リベ
ット１５のカシメ部分を直接ハンダ付にて加熱しても、
カシメがゆるむことがない。また、圧電素子円板３への
信号線としてバネ端子１３を使用しているので、圧電素
子円板へのノ・ンダ付を省略することができ、圧電素子
円板の劣化を防止することができるとともに、作業工数
の削減もできるものである。Next, the operation of the above embodiment will be explained. In FIG. 3, when an audio electrical signal is applied between the flat rivet 15 and the case 1, a radial force is generated on the piezoelectric element disk 3°, causing flexural vibration, which is converted into acoustic energy. In this embodiment, as shown in FIG. 3, since thermosetting resin is used for the insulator 12, it also serves as an input terminal. Even if you directly heat the caulked part of flat rivet 15 with solder,
The caulking never loosens. Furthermore, since the spring terminal 13 is used as the signal line to the piezoelectric element disk 3, it is possible to omit the need to attach a solder to the piezoelectric element disk, thereby preventing deterioration of the piezoelectric element disk. In addition to this, it is also possible to reduce the number of man-hours required.
なお、バネ端子をそれが圧接される圧電素子円板の電極
部と同一材料で成形するがクラッドあるいはメッキすれ
ば圧接部の摩耗が軽減でき、しかも電融等による腐蝕を
防止することができる。The spring terminal is molded of the same material as the electrode portion of the piezoelectric element disk to which it is press-contacted, but if it is clad or plated, wear of the press-contact portion can be reduced and corrosion caused by electrofusion etc. can be prevented.
発明の効果
以上のように本発明によれば絶縁体に熱硬化性樹脂を用
い、圧電素子円板への信号線としてバネ ｉ端
子を用いているので、ハンダ付の熱による絶縁体の変形
、圧電素子円板の劣化を防止でき、しかも組立工数削減
を図ることができるものである。Effects of the Invention As described above, according to the present invention, thermosetting resin is used as the insulator, and a spring i terminal is used as the signal line to the piezoelectric element disk, so that deformation of the insulator due to heat during soldering, It is possible to prevent deterioration of the piezoelectric element disk, and also to reduce the number of assembly steps.
第１図は従来の圧電型変換器を示す断面図、第２図は第
１図の要部拡大図、第３図は本発明の一実施例における
圧電型変換器を示す断面図である。
１・・・ケース、２・・・振動板、３・・・圧電素子円
板、６゜１２・・・絶縁体、７・・・背気室、１０・・
・小孔、１１・・・抵抗材、１３・・・バネ端子、１５
・・・平リベット。
代理人の氏名 弁理士 中 尾 敏 男 を丘か１名第
１図
第２図
第３図FIG. 1 is a sectional view showing a conventional piezoelectric transducer, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIG. 3 is a sectional view showing a piezoelectric transducer according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Case, 2... Vibration plate, 3... Piezoelectric element disc, 6°12... Insulator, 7... Back air chamber, 10...
・Small hole, 11... Resistance material, 13... Spring terminal, 15
...Flat rivet. Name of agent: Patent attorney Toshio Nakao Ooka or one person Figure 1 Figure 2 Figure 3
Claims (1)
型の振動板と、上記振動板の周辺部を支持し、かつ背気
室を構成する熱硬化性樹脂からなる絶縁体と基部を上記
絶縁体にリベットにて固定し、先端部を上記圧電素子円
板に圧接させたバネ端子とからなる圧電型変換器。A piezoelectric bimorph type diaphragm made by pasting together a piezoelectric element disk and a metal disk, an insulator made of thermosetting resin that supports the periphery of the diaphragm, and forms a back air chamber, and the base is insulated. A piezoelectric transducer consisting of a spring terminal fixed to the body with rivets and whose tip is pressed into contact with the piezoelectric element disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15004684A JPS6129298A (en) | 1984-07-19 | 1984-07-19 | Piezoelectric transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15004684A JPS6129298A (en) | 1984-07-19 | 1984-07-19 | Piezoelectric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6129298A true JPS6129298A (en) | 1986-02-10 |
Family
ID=15488320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15004684A Pending JPS6129298A (en) | 1984-07-19 | 1984-07-19 | Piezoelectric transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129298A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2643771A1 (en) * | 1989-02-27 | 1990-08-31 | Horlogerie Photograph Fse | PIEZOELECTRIC CAPSULE WITH CONDUCTIVE ELASTIC HOLDING COMPONENTS |
| FR2643772A1 (en) * | 1989-02-27 | 1990-08-31 | Horlogerie Photograph Fse | PIEZOELECTRIC CAPSULE WITH FLAT RANGE AND ELASTIC HOLDING DEVICES |
| KR100451481B1 (en) * | 1996-11-20 | 2004-12-10 | 스타 마이크로닉스 컴퍼니 리미티드 | Electroacoustic transducer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5570898A (en) * | 1978-11-24 | 1980-05-28 | Seiko Instr & Electronics | Piezoelectric buzzer |
-
1984
- 1984-07-19 JP JP15004684A patent/JPS6129298A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5570898A (en) * | 1978-11-24 | 1980-05-28 | Seiko Instr & Electronics | Piezoelectric buzzer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2643771A1 (en) * | 1989-02-27 | 1990-08-31 | Horlogerie Photograph Fse | PIEZOELECTRIC CAPSULE WITH CONDUCTIVE ELASTIC HOLDING COMPONENTS |
| FR2643772A1 (en) * | 1989-02-27 | 1990-08-31 | Horlogerie Photograph Fse | PIEZOELECTRIC CAPSULE WITH FLAT RANGE AND ELASTIC HOLDING DEVICES |
| KR100451481B1 (en) * | 1996-11-20 | 2004-12-10 | 스타 마이크로닉스 컴퍼니 리미티드 | Electroacoustic transducer |
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