JPH0424719Y2 - - Google Patents
Info
- Publication number
- JPH0424719Y2 JPH0424719Y2 JP1985186445U JP18644585U JPH0424719Y2 JP H0424719 Y2 JPH0424719 Y2 JP H0424719Y2 JP 1985186445 U JP1985186445 U JP 1985186445U JP 18644585 U JP18644585 U JP 18644585U JP H0424719 Y2 JPH0424719 Y2 JP H0424719Y2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- sounding body
- out part
- piezoelectric buzzer
- case
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
この考案は、圧電ブザーに係り、特に発音体か
らの引出部と外部引出部が一体成形されたリード
端子の構造に関するものである。[Detailed Description of the Invention] <Industrial Field of Application> This invention relates to a piezoelectric buzzer, and particularly to the structure of a lead terminal in which a lead-out portion from a sounding body and an external lead-out portion are integrally molded.
〈従来の技術〉
従来、リード端子が発音体からの引出部を外部
引出部が一体成形されたタイプの圧電ブザーは、
第３図に示すように、表面に電極１を設けた圧電
セラミツク２と金属板３を重ねて発音体４を形成
し、この発音体４を樹脂製のケース５内に金属板
３の周囲をケース５の段部で支持することによつ
て組込み、リード引出部６と外部引出部７でＬ字
形に一体成形したリード端子８，８を用い、リー
ド引出部６の端部を電極１を金属板３に半田付け
により接続し、外部引出部７をケース５で支持し
てその端部をケース５の端面から外方に突出させ
た構造になつており、リード端子８，８には断面
が円形の軟銅線が使用されている。<Prior art> Conventionally, a piezoelectric buzzer of the type in which the lead terminal extends from the sounding body and the external lead-out part is integrally molded,
As shown in FIG. 3, a piezoelectric ceramic 2 having an electrode 1 on its surface and a metal plate 3 are stacked to form a sounding body 4, and this sounding body 4 is placed in a resin case 5 with the surroundings of the metal plate 3 covered. The lead terminals 8, 8 are assembled by being supported by the step part of the case 5, and are integrally molded into an L-shape at the lead pull-out part 6 and the external pull-out part 7, and the end of the lead pull-out part 6 is connected to the electrode 1 by metal. It has a structure in which it is connected to the plate 3 by soldering, the external drawer part 7 is supported by the case 5, and its end protrudes outward from the end surface of the case 5, and the lead terminals 8, 8 have a cross section. A circular annealed copper wire is used.
〈考案が解決しようとする問題点〉
ところで、リード引出部６と外部引出部７が一
体成形されたリード端子８を使用すると、リード
端子８の機械的強度が確保でき、発音体４がリー
ド端子８のリード引出部６とケース５で挟まれた
状態になり、部品点数の少ない簡単な構造の圧電
ブザーとなるが、発音体４の振動がリード引出部
６に伝達されることになる。<Problems to be solved by the invention> By the way, by using the lead terminal 8 in which the lead pull-out part 6 and the external draw-out part 7 are integrally molded, the mechanical strength of the lead terminal 8 can be ensured, and the sounding body 4 can be attached to the lead terminal. The piezoelectric buzzer is sandwiched between the lead pull-out part 6 of 8 and the case 5, and the piezoelectric buzzer has a simple structure with a small number of parts, but the vibration of the sounding body 4 is transmitted to the lead pull-out part 6.
ところで、リード引出部６は断面円形の線材で
形成されていると、可撓製が乏しく発音体の振動
がリード端子によつて抑制され、音圧の低下や周
波数特性のバラツキが発生するという問題があ
る。 By the way, if the lead lead-out part 6 is formed of a wire rod with a circular cross section, there is a problem that the flexibility is insufficient and the vibration of the sounding body is suppressed by the lead terminal, resulting in a decrease in sound pressure and variations in frequency characteristics. There is.
この考案は、上記のような問題を解決するため
になされたものであり、リード端子の機械的強度
を確保すると共に、組立性に優れ、さらにリード
線の発音体への振動抑制を小さくして音圧レベル
を向上でき周波数特性の変動のない圧電ブザーを
提供することを目的とする。 This idea was made to solve the problems mentioned above, and it ensures the mechanical strength of the lead terminal, is easy to assemble, and reduces the vibration suppression of the lead wire to the sounding body. The purpose of the present invention is to provide a piezoelectric buzzer that can improve the sound pressure level and has no fluctuation in frequency characteristics.
〈問題点を解決するための手段〉
上記のような問題点を解決するため、この考案
は、圧電ブザーの発音体の両面側を外部引出部と
一体成形されたリード引出部とケースの段部とで
挟んだ状態でケース内に収納した圧電ブザーにお
いて、上記リード引出部の途中に発音体の面と平
行するフラツト部分を形成したものである。<Means for Solving the Problems> In order to solve the above-mentioned problems, this invention is based on a piezoelectric buzzer in which both sides of the sounding body are integrated with an external lead-out part and a stepped part of the case. In this piezoelectric buzzer, which is housed in a case in a sandwiched state, a flat part parallel to the surface of the sounding body is formed in the middle of the lead extraction part.
〈作用〉
リード端子のリード引出部に発音体の面と平行
なフラツト部を設けたので、断面円形の線材を用
いてもリード引出部の可撓性が向上し、発音体の
振動抑制力が小さくなり、発音体の音圧レベルの
向上と周波数特性のバラツキ減少が得られる。<Function> Since the lead terminal lead-out part is provided with a flat part parallel to the surface of the sounding body, the flexibility of the lead-out part is improved even when a wire with a circular cross section is used, and the vibration suppression force of the sounding body is increased. This makes it possible to improve the sound pressure level of the sounding body and reduce variations in frequency characteristics.
〈実施例〉
以下、この考案の実施例を添付図面の第１図と
第２図にもとづいて説明する。<Example> Hereinafter, an example of this invention will be described based on FIGS. 1 and 2 of the accompanying drawings.
第１図はこの考案に係る圧電ブザーの断面構造
を示しており、同図において第３図と同一部分は
同一符号を付して説明に代える。 FIG. 1 shows a cross-sectional structure of a piezoelectric buzzer according to this invention, and in the same figure, the same parts as those in FIG.
第１図において、リード端子８、８はリード引
出部６と外部引出部７が断面円形の金属線を用い
て一体成形され、リード引出部６の端部を電極１
又は金属板３に半田付けで接続した状態で外部引
出部７がケース５に貫通固定され、リード引出部
６が発音体４の面と平行するよう配置されてい
る。 In FIG. 1, the lead terminals 8, 8 have a lead pull-out part 6 and an external lead-out part 7 integrally molded using a metal wire with a circular cross section, and the end of the lead pull-out part 6 is connected to an electrode 1.
Alternatively, the external lead-out part 7 is fixed to the case 5 through soldering while being connected to the metal plate 3 by soldering, and the lead lead-out part 6 is arranged so as to be parallel to the surface of the sounding body 4.
上記リード端子８，８のリード引出部６にはそ
の途中に発音体４の面と平行なフラツト部１１が
プレス成形等の手段によつて形成されている。 A flat portion 11 parallel to the surface of the sounding body 4 is formed in the middle of the lead pull-out portion 6 of the lead terminals 8, 8 by means such as press molding.
リード端子８，８のリード引出部６は、フラツ
ト部１１の形成により、断面円形の線材を用いた
にもかかわらず発音体４の面と直角方向、即ち発
音体４の振動方向に十分な可撓性を備えることに
なる。 Due to the formation of the flat portion 11, the lead pull-out portions 6 of the lead terminals 8, 8 have sufficient flexibility in the direction perpendicular to the plane of the sounding body 4, that is, in the vibration direction of the sounding body 4, even though wire rods having a circular cross section are used. It will have flexibility.
従つて、ケース５内に収納した発音体４にリー
ド端子８，８を接続しても、リード引出部６はフ
ラツト部分１１から先端が上下に揺動しやすく、
発音体４の上下振動をさまたげることがなくな
る。 Therefore, even when the lead terminals 8, 8 are connected to the sounding body 4 housed in the case 5, the tip of the lead pull-out portion 6 easily swings up and down from the flat portion 11.
The vertical vibration of the sounding body 4 is not disturbed.
〈効果〉
以上のように、この考案によると、リード引出
部と外部引出部とを一体成形し、このリード端子
の途中に発音体の面と平行するフラツト部分を設
けたので、外部への引き出し及び発音体の保持に
必要とされるリード端子の十分な機械的強度を保
ち、更に部品点数を増加させることなしに、リー
ド端子にフラツト部分で発音体の振動方向に十分
な可撓性が生じ、振動に追従して発音体の上下振
動をさまたげることが少ないので、音圧レベルが
向上し、周波数特性のバラツキも減少する。<Effects> As described above, according to this invention, the lead lead-out part and the external lead-out part are integrally molded, and a flat part parallel to the surface of the sounding body is provided in the middle of the lead terminal, so that the lead-out part to the outside can be easily drawn out. In addition to maintaining the sufficient mechanical strength of the lead terminal required to hold the sounding body, the flat portion of the lead terminal has sufficient flexibility in the vibration direction of the sounding body without increasing the number of parts. Since the vertical vibration of the sounding body is less disturbed by following the vibration, the sound pressure level is improved and the variation in frequency characteristics is also reduced.
第１図はこの考案に係る圧電ブザーの縦断面
図、第２図は同上に用いるリード端子の平面図、
第３図は従来の圧電ブザーの縦断面図である。
１……電極、２……圧電セラミツク、３……金
属板、４……発音体、５……ケース、８……リー
ド端子、１１……フラツト部。
FIG. 1 is a longitudinal cross-sectional view of a piezoelectric buzzer according to this invention, and FIG. 2 is a plan view of a lead terminal used in the same.
FIG. 3 is a longitudinal sectional view of a conventional piezoelectric buzzer. DESCRIPTION OF SYMBOLS 1...Electrode, 2...Piezoelectric ceramic, 3...Metal plate, 4...Sounding body, 5...Case, 8...Lead terminal, 11...Flat part.
Claims (1)
重ねて発音体を形成し、この発音体の電極及び金
属板の各々にリード端子を接続し、上記各リード
端子のリード引出部を、外部引出部と一体成形す
ると共に、上記発音体を両面側から上記リード引
出部とケースの段部とで挟んだ状態でケース内に
収納した圧電ブザーにおいて、上記リード引出部
の途中に発音体の面と平行するフラツト部分を形
成したことを特徴とする圧電ブザー。 A sounding body is formed by stacking a piezoelectric ceramic with electrodes on its surface and a metal plate, and lead terminals are connected to each of the electrodes and the metal plate of this sounding body, and the lead extraction portion of each lead terminal is connected to an external extraction portion. In a piezoelectric buzzer that is integrally molded with the sounding body and housed in the case with the sounding body sandwiched between the lead pullout portion and the stepped portion of the case from both sides, a piezoelectric buzzer is formed in the middle of the lead pullout portion parallel to the surface of the sounding body. A piezoelectric buzzer characterized by forming a flat part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985186445U JPH0424719Y2 (en) | 1985-12-03 | 1985-12-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985186445U JPH0424719Y2 (en) | 1985-12-03 | 1985-12-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6295398U JPS6295398U (en) | 1987-06-18 |
| JPH0424719Y2 true JPH0424719Y2 (en) | 1992-06-11 |
Family
ID=31136007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985186445U Expired JPH0424719Y2 (en) | 1985-12-03 | 1985-12-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424719Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4737082B2 (en) * | 2006-12-28 | 2011-07-27 | Ｔｄｋ株式会社 | Piezoelectric sounding body |
| JP4737081B2 (en) * | 2006-12-28 | 2011-07-27 | Ｔｄｋ株式会社 | Piezoelectric sounding body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111199U (en) * | 1983-12-28 | 1985-07-27 | 神田通信工業株式会社 | Piezoelectric electroacoustic transducer |
-
1985
- 1985-12-03 JP JP1985186445U patent/JPH0424719Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6295398U (en) | 1987-06-18 |
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