JPS59209693A - Ultrasonic washer - Google Patents
Ultrasonic washerInfo
- Publication number
- JPS59209693A JPS59209693A JP7796184A JP7796184A JPS59209693A JP S59209693 A JPS59209693 A JP S59209693A JP 7796184 A JP7796184 A JP 7796184A JP 7796184 A JP7796184 A JP 7796184A JP S59209693 A JPS59209693 A JP S59209693A
- Authority
- JP
- Japan
- Prior art keywords
- insulating plate
- piezoelectric element
- metal foil
- adhesive
- insulating
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、水槽の底部裏面に絶縁板を介して圧電素子を
接着し、自励発振回路により駆動し、屈曲振動モードを
利用して３１〜６０ ＫＨｚの超音波を液中に放射し超
音波洗浄を行う超音波洗浄器に・関するもので、圧電素
子と絶縁板の接着構造の改良により信頼性の高い超音波
洗浄器を提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a piezoelectric element is bonded to the back surface of the bottom of an aquarium through an insulating plate, and is driven by a self-excited oscillation circuit to generate ultrasonic waves of 31 to 60 KHz using a bending vibration mode. This article relates to an ultrasonic cleaner that performs ultrasonic cleaning by emitting radiation into liquid, and aims to provide a highly reliable ultrasonic cleaner by improving the bonding structure between a piezoelectric element and an insulating plate.
従来における超音波洗浄器を第１図〜第３図により説明
する。丑ず、ステンレス鋼等の金属よりなる水槽１の底
部裏面に、第２図に示すように少なくとも片面に銅箔等
の金属箔２を有しガラスエポキシ樹脂等よりなる絶縁板
３を絶縁性接着剤４により接着し、さらに絶縁板３の金
属箔２而と第３図に示すように両面に銀電極等の電極５
，６′を有する圧電素子６を向かい合わせて絶縁性接着
剤または導電性接着剤７により接着し、そしてリード線
８，８′がそれぞれ絶縁板３の金属箔２部と圧電素子６
の電極６に・・ン夛付けして構成されているものである
。A conventional ultrasonic cleaner will be explained with reference to FIGS. 1 to 3. As shown in FIG. 2, an insulating plate 3 made of glass epoxy resin or the like and having a metal foil 2 such as copper foil on at least one side is insulatively bonded to the bottom back surface of an aquarium 1 made of metal such as stainless steel. The metal foil 2 of the insulating plate 3 and electrodes 5 such as silver electrodes are attached to both sides of the insulating plate 3 as shown in FIG.
, 6' are bonded facing each other with an insulating adhesive or a conductive adhesive 7, and the lead wires 8, 8' are connected to two parts of the metal foil of the insulating plate 3 and the piezoelectric element 6, respectively.
It is constructed by attaching... to the electrode 6 of.
この場合、絶縁板３と圧電素子６を絶縁性接着剤により
接着する場合、加圧、加熱によって接着剤層を薄くする
ことに」：り絶縁板の金属箔と圧電素子の電極を点接触
により導通させることが可能であるが、高温、高入力パ
ワーで動作させると接着剤の軟化そして振動振幅により
点接触が外れ、導通しなくなるという欠点があった。In this case, when bonding the insulating plate 3 and the piezoelectric element 6 with an insulating adhesive, the adhesive layer is thinned by applying pressure and heating. Although it is possible to create electrical continuity, there is a drawback that when operated at high temperatures and high input power, the point contact becomes disconnected due to softening of the adhesive and vibration amplitude, resulting in loss of electrical continuity.
また、導電性接着剤で接着する場合、導電性接着剤その
ものの接着力が弱いこと、そしてはみ出した場合に水槽
に触れ、圧電素子と水槽の絶縁が得られないという欠点
があった。In addition, when bonding with a conductive adhesive, there is a drawback that the adhesive force of the conductive adhesive itself is weak, and if it protrudes, it will touch the water tank, making it impossible to provide insulation between the piezoelectric element and the water tank.
本発明は上記のような従来における欠点を除去ずへく創
案されたものであり、以下その一実施例について第４図
および第６図を用いて説明する。The present invention has been devised without eliminating the above-mentioned drawbacks of the conventional art, and one embodiment thereof will be described below with reference to FIGS. 4 and 6.
なお、上記従来例と対する箇所には同一符号を付して説
明する。Note that the same reference numerals are given to the parts corresponding to those in the conventional example described above.
本発明においては、絶縁板３と圧電素子６との接着は、
まず絶縁板３の金属箔２面の中央部に第５図に示すよう
に導電性接着剤９が、そしてそれと少しの間隙を設けて
周囲に絶縁性接着剤１０を薄く塗布し、絶縁板３と圧電
素子６を加圧、加熱して接着してなるものである。ここ
で、圧電素子６面に上記接着剤９，１ｏを塗布して接着
を行うようにしてもよいものである。In the present invention, the bonding between the insulating plate 3 and the piezoelectric element 6 is as follows.
First, a conductive adhesive 9 is applied to the center of the two metal foil surfaces of the insulating plate 3 as shown in FIG. The piezoelectric element 6 is bonded by applying pressure and heating. Here, the adhesives 9 and 1o described above may be applied to the surface of the piezoelectric element 6 for bonding.
以上のように本発明の装置が構成されているものであり
、圧電素子と絶縁板の金属箔面を導電性接着剤と絶縁性
接着剤を併用して接着することにより、絶縁性接着剤に
より強力な接着が、そして導電性接着剤により金属箔と
圧電素子の電極との確実なる導通が得られ、高温、高入
力／％クワ−作時においても導通不良が発生しないとい
う長所を有し、工業上有用なものである０The device of the present invention is constructed as described above, and the piezoelectric element and the metal foil surface of the insulating plate are bonded together using a conductive adhesive and an insulating adhesive. Strong adhesion and conductive adhesive ensure reliable continuity between the metal foil and the electrode of the piezoelectric element, and it has the advantage of not causing poor continuity even when operating at high temperatures and high input/%. Industrially useful 0
第１図は従来における超音波洗浄器の断面図、第２図は
同洗浄器を構成する絶縁板の斜視図、第３図は同じく圧
電素子の斜視図、第４図は本発明にかかる超音波洗浄器
の一実施例を示す断面図、第６図は同洗浄器における接
着構造を説明するだめの要部斜視図である。
１・・・・・・水槽、２・・・・・金属箔、３・・・・
・絶縁板、６・・・・・・圧電素子、９・・・・・・導
電性接着剤、１０・・・・・・絶縁性接着剤。Fig. 1 is a sectional view of a conventional ultrasonic cleaner, Fig. 2 is a perspective view of an insulating plate constituting the ultrasonic cleaner, Fig. 3 is a perspective view of a piezoelectric element, and Fig. 4 is an ultrasonic cleaner according to the present invention. FIG. 6 is a sectional view showing an embodiment of the sonic cleaner, and FIG. 6 is a perspective view of the main part of the sonic cleaner for explaining the bonding structure in the cleaner. 1...Aquarium, 2...Metal foil, 3...
- Insulating plate, 6... Piezoelectric element, 9... Conductive adhesive, 10... Insulating adhesive.
Claims (1)
つ少なくとも片面に金属箔を有する絶縁板と、前記絶縁
板の金属箔面に接着されてなる圧電素子とからなり、前
記絶縁板の金属箔面と前記圧電素子を、導電性接着剤を
中央付近の一部に、そしてその他の部分に絶縁性接着剤
を介在させて接着した超音波洗浄器。It comprises at least an aquarium, an insulating plate adhered to the back surface of the bottom of the aquarium and having metal foil on at least one side, and a piezoelectric element adhered to the metal foil surface of the insulating plate, the metal foil surface of the insulating plate and an ultrasonic cleaner in which the piezoelectric element is bonded with a conductive adhesive in a part near the center and an insulating adhesive in other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7796184A JPS59209693A (en) | 1984-04-18 | 1984-04-18 | Ultrasonic washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7796184A JPS59209693A (en) | 1984-04-18 | 1984-04-18 | Ultrasonic washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59209693A true JPS59209693A (en) | 1984-11-28 |
Family
ID=13648569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7796184A Pending JPS59209693A (en) | 1984-04-18 | 1984-04-18 | Ultrasonic washer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59209693A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125889A (en) * | 1985-11-22 | 1987-06-08 | 株式会社村田製作所 | Ultrasonic washing machine |
| JPH0232284A (en) * | 1988-07-21 | 1990-02-02 | Matsushita Electric Ind Co Ltd | Ultrasonic vibrator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5026304U (en) * | 1973-06-30 | 1975-03-26 |
-
1984
- 1984-04-18 JP JP7796184A patent/JPS59209693A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5026304U (en) * | 1973-06-30 | 1975-03-26 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125889A (en) * | 1985-11-22 | 1987-06-08 | 株式会社村田製作所 | Ultrasonic washing machine |
| JPH0232284A (en) * | 1988-07-21 | 1990-02-02 | Matsushita Electric Ind Co Ltd | Ultrasonic vibrator |
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