JPH0389799A - Piezoelectric sounding body - Google Patents
Piezoelectric sounding bodyInfo
- Publication number
- JPH0389799A JPH0389799A JP22769889A JP22769889A JPH0389799A JP H0389799 A JPH0389799 A JP H0389799A JP 22769889 A JP22769889 A JP 22769889A JP 22769889 A JP22769889 A JP 22769889A JP H0389799 A JPH0389799 A JP H0389799A
- Authority
- JP
- Japan
- Prior art keywords
- water
- resin case
- terminal
- piezoelectric vibrator
- piezoelectric
- 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
- 239000011347 resin Substances 0.000 claims abstract description 45
- 229920005989 resin Polymers 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 238000005476 soldering Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
Landscapes
- 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、警報器などに使用される圧電発音体に関する
ものであり、特に警報器などへの組立時にふ・いてプリ
ント基板への組立後のフラックス洗浄時に際し、洗浄溶
剤に浸漬可能な圧電発音体に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a piezoelectric sounding element used in alarm devices, etc., and in particular, it is applied to a piezoelectric sounding element used in alarm devices, etc., and in particular, to a piezoelectric sounding element used in an alarm device, etc. The present invention relates to a piezoelectric sounding body that can be immersed in a cleaning solvent during cleaning.
従来の技術
従来、この種の圧電発音体は第５図、第６図に示すよう
に、両面に電極層１を有する圧電素子２を金属板３に接
着した圧電振動子４を、天板部に設けられた放音孔５２
Ｌおよび共鳴室６ｂを有する樹脂ケース６に収納固着し
た後、端子取付部６ａに端子７を挿入保持させた樹脂下
部ケース６を上記樹脂ケース５の下面開口部に固着させ
ていた。2. Description of the Related Art Conventionally, as shown in FIGS. 5 and 6, this type of piezoelectric sounding body has a piezoelectric vibrator 4, in which a piezoelectric element 2 having electrode layers 1 on both sides is bonded to a metal plate 3, is mounted on a top plate. Sound emitting hole 52 provided in
After being housed and fixed in a resin case 6 having an L and resonance chamber 6b, a resin lower case 6 in which a terminal 7 is inserted and held in a terminal mounting portion 6a is fixed to a lower opening of the resin case 5.
ここで、上記端子７は上記圧電振動子４に半田などで電
気的に接続されており、この従来例では３端子形の圧電
発音体を構成している。また、８は上記圧電振動子４を
樹脂ケース６に固着している接着剤、９は樹脂ケース５
の放音孔５１Ｌに貼られた耐溶剤性、耐水性のシート、
１０は樹脂ケース６と樹脂下部ケース６の合わせ部およ
び端子取付部の隙間へ充填された液状の封入用接着剤で
ある。Here, the terminal 7 is electrically connected to the piezoelectric vibrator 4 by solder or the like, and in this conventional example, constitutes a three-terminal type piezoelectric sounding body. Further, 8 is the adhesive that fixes the piezoelectric vibrator 4 to the resin case 6, and 9 is the resin case 5.
A solvent-resistant and water-resistant sheet pasted on the sound emission hole 51L,
Reference numeral 10 denotes a liquid sealing adhesive that is filled into the gap between the joint portion of the resin case 6 and the resin lower case 6 and the terminal attachment portion.
発明が解決しようとする課題
このような従来の構成では、圧電発音体をプリント基板
に半田付は塔載後において、フラックス洗浄時に釦ける
洗浄溶剤の侵入防止のため、樹脂ケースの放音孔にシー
トを貼ると同時に、樹脂ケースと樹脂下部ケースの合わ
せ部分よび端子取付部の隙間へ液状接着剤を封入する必
要があり、その作業性の困難さと、封入した接着剤の量
のばらつきにより、完全な気密性を保持できないという
問題があった。Problems to be Solved by the Invention In such a conventional configuration, after soldering the piezoelectric sounding element to the printed circuit board, it is necessary to solder the piezoelectric sounding element to the sound emitting hole of the resin case to prevent the intrusion of cleaning solvent during flux cleaning. At the same time as pasting the sheet, it is necessary to fill in liquid adhesive into the gaps between the mating parts of the resin case and the lower resin case and the terminal mounting parts, which is difficult to do and due to variations in the amount of sealed adhesive, it is not possible to completely There was a problem that airtightness could not be maintained.
本発明はこのような問題を解決するもので、量産性がよ
く、洗浄溶剤筐たは水に浸漬可能な圧電発音体を提供す
ることを目的とするものである。The present invention solves these problems, and aims to provide a piezoelectric sounding body that can be easily mass-produced and can be immersed in a cleaning solvent housing or water.
課題を解決するための手段
この課題を解決するために本発明は、両面に電極層を有
する圧電素子を金属板に接着した圧電振動子を、外周部
に端子取付部を設けた樹脂ケース内に接着剤にて固着し
、上記樹脂ケースの端子取付部へ挿入される端子挿入部
と上記圧電振動子に電気信号を伝えるバネ部とを有する
金属製端子を、その端子挿入部を上記端子取付部に挿入
すると共に上記バネ部の先端を上記圧電振動子に半田付
けしてな、るものである。Means for Solving the Problem In order to solve this problem, the present invention provides a piezoelectric vibrator in which a piezoelectric element having electrode layers on both sides is bonded to a metal plate, and is housed in a resin case with a terminal mounting portion on the outer periphery. A metal terminal that is fixed with adhesive and has a terminal insertion part that is inserted into the terminal mounting part of the resin case and a spring part that transmits an electric signal to the piezoelectric vibrator, and the terminal insertion part is inserted into the terminal mounting part. At the same time, the tip of the spring portion is soldered to the piezoelectric vibrator.
作用
この構成によれば、圧電振動子を樹脂ケース内に固着し
、端子挿入部とバネ部とを有する金属製端子を、その端
子挿入部を樹脂ケースの端子取付部に挿入すると共にバ
ネ部の先端を圧電振動子に半田付けした構成のため、量
産性よく、洗浄溶剤または水に浸漬可能な圧電発音体を
容易に提供することができるものである。また、樹脂ケ
ース。According to this configuration, the piezoelectric vibrator is fixed in the resin case, and the metal terminal having the terminal insertion part and the spring part is inserted into the terminal mounting part of the resin case, and the spring part is inserted. Since the tip is soldered to the piezoelectric vibrator, it is possible to easily provide a piezoelectric sounding body that can be easily mass-produced and can be immersed in a cleaning solvent or water. Also a resin case.
金属板、端子釦よび接着剤は耐溶剤性、耐水性を有し、
圧電振動子の表面に耐溶剤性、耐水性の樹脂を塗布【２
、かつ樹脂ケースの放音孔の部分に溶剤、水の侵入を防
止する耐溶剤性、耐水性のシートを貼った構成とするこ
とにより、より一層、洗浄溶剤または水に対しての浸漬
処理が行いやすいものとなる。The metal plate, terminal button and adhesive are solvent resistant and water resistant.
Coating solvent-resistant and water-resistant resin on the surface of the piezoelectric vibrator [2]
In addition, by affixing a solvent-resistant and water-resistant sheet to the sound emitting hole part of the resin case to prevent the intrusion of solvents and water, it is even easier to immerse in cleaning solvents or water. It will be easier to do.
実施例
部下、本発明の一実施例について第１図および第２図と
共に説明する。In the embodiment section, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
第１図ふ・よび第２図において、１１は両面に電極層１
２を有する圧電素子１３を金属板１４に接着して構成さ
れる圧電振動子であり、この圧電振動子１１は外周に端
子取付部１６ａ、天板部に放音孔１ｅｓｂを設けた樹脂
ケース１６内に接着剤１６にて固着されている。１７は
端子挿入部１７１Ｌとバネ部１７ｂを有する金属製端子
であり、この端子１７は上記端子挿入部１７＆を樹脂ケ
ース１６の端子取付部１５１Ｌに挿入し、またバネ部１
７ｂの先端を上記圧電振動子１１に半田付けしている。In Figure 1 and Figure 2, 11 is an electrode layer 1 on both sides.
This piezoelectric vibrator 11 is constructed by bonding a piezoelectric element 13 having a piezoelectric element 2 to a metal plate 14, and this piezoelectric vibrator 11 has a resin case 16 which has a terminal mounting part 16a on the outer periphery and a sound emitting hole 1esb in the top plate part. It is fixed inside with adhesive 16. Reference numeral 17 denotes a metal terminal having a terminal insertion portion 171L and a spring portion 17b.
The tip of 7b is soldered to the piezoelectric vibrator 11.
ここで、」二記圧電振動子１１の構成につｂては詳細に
示していないが、この第１図、第２図の実施例では圧電
振動子１１よυ３本の上記金属製端子１７が電気的に接
続、引出されてかり、３端子形の圧電発音体を構成して
いる。Although the structure of the piezoelectric vibrator 11 is not shown in detail, in the embodiment shown in FIGS. 1 and 2, the piezoelectric vibrator 11 and the three metal terminals 17 It is electrically connected and drawn out, forming a three-terminal piezoelectric sounding element.
また、上記圧電振動子１１の表面には耐溶剤性。Further, the surface of the piezoelectric vibrator 11 has solvent resistance.
耐水性の樹脂１８が塗布されておシ、樹脂ケース１６の
放音孔１５ｂの部分には溶剤、水の侵入を防止する耐溶
剤性、耐水性のシート１９が貼られている。さらに、上
記樹脂ケース１６、金属板１４、金属製端子１７および
接着剤１ｅは耐溶剤性、耐水性を有する構成となってい
る。筐た、樹脂ケース１６の圧電振動子１１を接着する
箇所１ＳＣ＞よび圧電振動子１１を構成する金属板１４
の樹脂ケース１６に固着する箇所１４１Ｌには。A water-resistant resin 18 is applied, and a solvent-resistant and water-resistant sheet 19 is pasted to the sound emitting hole 15b portion of the resin case 16 to prevent the intrusion of solvent and water. Furthermore, the resin case 16, metal plate 14, metal terminal 17, and adhesive 1e are constructed to have solvent resistance and water resistance. The housing, the part 1SC of the resin case 16 where the piezoelectric vibrator 11 is bonded, and the metal plate 14 that constitutes the piezoelectric vibrator 11
In the part 141L that is fixed to the resin case 16.
接着剤１６の接着強度を高めるブライマーが塗布されて
いる。A brimer is applied to increase the adhesive strength of the adhesive 16.
第３図および第４図は本考案の他の実施例を示し、２端
子形の圧電発音体である。3 and 4 show another embodiment of the present invention, which is a two-terminal type piezoelectric sounding body.
発明の効果
以上のように本発明によれば、端子挿入部とバネ部を有
する端子を、圧電振動子を固着した樹脂ケースの端子取
付部に上記端子挿入部を挿入すると共に上記バネ部を上
記圧電振動子に半田付けしたものであるため、洗浄溶剤
または水に浸漬可能な圧電発音体を量産性よく提供する
ことができるものである。また、その際に樹脂ケース、
金属板。Effects of the Invention As described above, according to the present invention, a terminal having a terminal insertion portion and a spring portion is inserted into the terminal mounting portion of the resin case to which the piezoelectric vibrator is fixed, and the spring portion is inserted into the terminal mounting portion of the resin case to which the piezoelectric vibrator is fixed. Since it is soldered to a piezoelectric vibrator, it is possible to provide a piezoelectric sounding body that can be immersed in a cleaning solvent or water with good mass productivity. In addition, at that time, the resin case,
metal plate.
端子お・よび接着剤を耐溶剤性、耐水性を有するものと
し、圧電振動子の表面に耐溶剤性、耐水性の樹脂を塗布
し、かつ樹脂ケースの放音孔の部分に溶剤、水の侵入を
防止する耐溶剤性、耐水性のシートを貼った構成とした
場合、さらには樹脂ケースの圧電振動子を接着する箇所
および圧電振動子の樹脂ケースに固着する箇所に接着剤
の接着強度を高めるブライマーを塗布することにより、
洗浄溶剤または水への浸漬処理がより一層しやすいもの
である。The terminals and adhesive should be solvent- and water-resistant, and the surface of the piezoelectric vibrator should be coated with solvent- and water-resistant resin, and the sound emitting hole of the resin case should be coated with solvent and water. If a solvent-resistant and water-resistant sheet is pasted to prevent intrusion, the adhesive strength of the adhesive must be increased at the locations where the piezoelectric vibrator is attached to the resin case and where the piezoelectric vibrator is fixed to the resin case. By applying a boosting brimer,
It is much easier to immerse in cleaning solvent or water.
第１図は本発明にかかる圧電発音体の一実施例を示す斜
視図、第２図は同断面図、第３図は本発明にかかる圧電
発音体の他の実施例を示す斜視図。
第４図は同断面図、第６図は従来例における圧電発音体
の斜視図、Ｋ６図は同断面図である。
１１・・・・・・圧電振動子、１２・・・・・・電極層
、１３・・・・・・圧電素子、１４・・・・・・金属板
、１４２Ｌ・・・・・・樹脂ケースに接着される箇所、
１６・・・・・・樹脂ケース、１６１・・・・・端子取
付部、ｊ５ｂ・・・・・・放音孔、１５Ｃ・・・・・・
圧電振動子を接着する箇所、１６・・・・・・接着剤、
１７・・・・・・金属製端子、１７ａ・・・・・・端子
挿入部、１７ｂ・・・・・・バネ部、１８・・・・・・
樹脂、１９・・・・・・シート。FIG. 1 is a perspective view showing one embodiment of the piezoelectric sounding body according to the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a perspective view showing another embodiment of the piezoelectric sounding body according to the present invention. FIG. 4 is a sectional view of the same, FIG. 6 is a perspective view of a piezoelectric sounding body in a conventional example, and FIG. K6 is a sectional view of the same. 11... Piezoelectric vibrator, 12... Electrode layer, 13... Piezoelectric element, 14... Metal plate, 142L... Resin case The part to be glued to,
16...Resin case, 161...Terminal mounting part, j5b...Sound emission hole, 15C...
Place to glue the piezoelectric vibrator, 16...Adhesive,
17...Metal terminal, 17a...Terminal insertion part, 17b...Spring part, 18...
Resin, 19...Sheet.
Claims (3)
た圧電振動子を、外周部に端子取付部を設けた樹脂ケー
ス内に接着剤にて固着し、上記樹脂ケースの端子取付部
へ挿入される端子挿入部と上記圧電振動子に電気信号を
伝えるバネ部とを有する金属製端子を、その端子挿入部
を上記端子取付部に挿入すると共に上記バネ部の先端を
上記圧電振動子に半田付けしてなる圧電発音体。(1) A piezoelectric vibrator in which a piezoelectric element having electrode layers on both sides is bonded to a metal plate is fixed with adhesive inside a resin case with a terminal mounting part on the outer periphery, and attached to the terminal mounting part of the resin case. A metal terminal having a terminal insertion part to be inserted and a spring part that transmits an electric signal to the piezoelectric vibrator is inserted into the terminal mounting part, and the tip of the spring part is attached to the piezoelectric vibrator. A piezoelectric sounding body made by soldering.
耐溶剤性，耐水性を有し、圧電振動子の表面に耐溶剤性
，耐水性の樹脂を塗布してなり、かつ樹脂ケースの天板
部に設けられた放音孔の部分に溶剤、水の侵入を防止す
る耐溶剤性，耐水性のシートを貼ってなる請求項１記載
の圧電発音体。(2) The resin case, metal plate, metal terminal, and adhesive are solvent resistant and water resistant, and the surface of the piezoelectric vibrator is coated with solvent resistant and water resistant resin. 2. The piezoelectric sounding element according to claim 1, wherein a solvent-resistant and water-resistant sheet is pasted to the sound emitting hole provided in the top plate portion to prevent the intrusion of solvent and water.
記圧電振動子の上記樹脂ケースに固着される箇所に接着
剤の接着強度を高めるプライマーを塗布してなる請求項
１または２記載の圧電発音体。(3) A piezoelectric sound source according to claim 1 or 2, wherein a primer is applied to a portion of the resin case to which the piezoelectric vibrator is bonded and a portion of the piezoelectric vibrator to which the piezoelectric vibrator is fixed to the resin case, with a primer that increases the adhesive strength of the adhesive. body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22769889A JPH0389799A (en) | 1989-09-01 | 1989-09-01 | Piezoelectric sounding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22769889A JPH0389799A (en) | 1989-09-01 | 1989-09-01 | Piezoelectric sounding body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0389799A true JPH0389799A (en) | 1991-04-15 |
Family
ID=16864949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22769889A Pending JPH0389799A (en) | 1989-09-01 | 1989-09-01 | Piezoelectric sounding body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0389799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7467558B2 (en) * | 2004-10-28 | 2008-12-23 | Panasonic Corporation | Piezoelectric element comprising a covering layer that suppresses the absorption of water and method of manufacturing the same |
-
1989
- 1989-09-01 JP JP22769889A patent/JPH0389799A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7467558B2 (en) * | 2004-10-28 | 2008-12-23 | Panasonic Corporation | Piezoelectric element comprising a covering layer that suppresses the absorption of water and method of manufacturing the same |
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