JPS618176A - Vibrator for ultrasonic humidifier - Google Patents
Vibrator for ultrasonic humidifierInfo
- Publication number
- JPS618176A JPS618176A JP12936784A JP12936784A JPS618176A JP S618176 A JPS618176 A JP S618176A JP 12936784 A JP12936784 A JP 12936784A JP 12936784 A JP12936784 A JP 12936784A JP S618176 A JPS618176 A JP S618176A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- nickel
- ultrasonic
- tin
- electrode
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 34
- 229910052759 nickel Inorganic materials 0.000 claims description 19
- 238000007747 plating Methods 0.000 claims description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 8
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 27
- 239000002253 acid Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 239000008233 hard water Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Air Humidification (AREA)
- Special Spraying Apparatus (AREA)
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】
（産業上の利用分野）
本発明は、超音波を利用して水を霧化する超音波加湿器
用の振動子に関するものである。。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vibrator for an ultrasonic humidifier that atomizes water using ultrasonic waves. .
（従来の技術）
第３図及び第４図はこの種の超音波加湿器用振動子の基
本的構成であり、圧電磁器からなる円板状振動子素体１
の超音波放射面に第１の銀電極２を、これと対向する面
に第２の銀電極３をそれぞれ焼き付けにより設けたもの
である。前記第１の銀電極２は超音波放射電極となるも
のであり、銀電極３が設けられた対向面側に一部延長し
た折り返し部４を有している。(Prior Art) Figures 3 and 4 show the basic configuration of this type of ultrasonic humidifier vibrator, in which a disc-shaped vibrator element 1 made of piezoelectric ceramic is shown.
A first silver electrode 2 is provided on the ultrasonic emission surface of the electrode, and a second silver electrode 3 is provided on the opposite surface by baking. The first silver electrode 2 serves as an ultrasonic emission electrode, and has a folded portion 4 that partially extends toward the opposite surface on which the silver electrode 3 is provided.
ところでｔＩｔＪ３図、第４図に示した基本構成では超
音波放射側の銀電極２の耐食性に問題を生じるため、従
来表面保護膜としてニッケルメッキを施していた。By the way, in the basic configuration shown in FIGS. 3 and 4, a problem arises in the corrosion resistance of the silver electrode 2 on the ultrasonic emission side, so nickel plating has conventionally been applied as a surface protective film.
（発明が解決しようとする問題点）
しかし、ニッケルメッキによる保護膜であると次のよう
な問題が生ずる。すなわち超音波加湿器において、硬水
を使用した場合（欧州、米国では硬水であることが一般
的である。）、多量の水垢が振動子の表面に付着し霧化
能力の低下が発生してしまう。これを防ぐため使用者側
においてビネガー（５％の酢酸水溶液と同等）と呼ばれ
る弱酸の溶液で清浄することが行なわれているが、この
ことにより振動子表面の電極が腐食される事態が生ずる
。すなわちニッケルの金属保護膜は５％酢酸水溶液で腐
食を生じ、５％酢酸水溶液中に放置した場合１００時間
乃至２００時間で溶解してしまうことが判明した。この
ため、水垢除去のためにビネ〃−と呼ばれる５％酢酸水
溶液を用いることは振動子寿命を着しく短（してしまう
問題が生ずる。(Problems to be Solved by the Invention) However, the following problems occur when the protective film is formed by nickel plating. In other words, when hard water is used in an ultrasonic humidifier (hard water is common in Europe and the United States), a large amount of water scale adheres to the surface of the vibrator, reducing the atomization ability. . To prevent this, the user cleans the vibrator with a weak acid solution called vinegar (equivalent to a 5% acetic acid aqueous solution), but this causes corrosion of the electrodes on the surface of the vibrator. That is, it has been found that the nickel metal protective film corrodes in a 5% acetic acid aqueous solution and dissolves in 100 to 200 hours when left in a 5% acetic acid aqueous solution. For this reason, the use of a 5% acetic acid aqueous solution called vinegar to remove limescale has the problem of significantly shortening the life of the vibrator.
（問題点を解決するための手Ｆｉ）
本発明は、上記の点に鑑み、超音波放射電極の表面像ｉ
ｌ！膜を、錫とニッケルの合金膜で構成することにより
、弱酸に対する耐食性を大幅に改善して、付着した水垢
除去に酢酸等の弱酸溶液を使用することを可能にし、か
つ長寿命化を図った超音波加湿器用振動子を提供しよう
とするものである。(Measures to solve the problem Fi) In view of the above points, the present invention provides a surface image i of an ultrasonic emission electrode.
l! By constructing the membrane with an alloy membrane of tin and nickel, corrosion resistance against weak acids has been greatly improved, making it possible to use weak acid solutions such as acetic acid to remove attached water scale, and extending the service life. The present invention aims to provide a vibrator for an ultrasonic humidifier.
（実施例）
以下、本発明に係る超音波加湿器用振動子の実施例を図
面に従って説明する。(Example) Examples of the ultrasonic humidifier vibrator according to the present invention will be described below with reference to the drawings.
第１図は振動子素体上の超音波放射電極の拡大断面図を
示す。この図において、圧電磁器からなる厚み１．２ｎ
＋ｎ＋の振動子素体１の超音波放射側の面にまず銀電極
２を厚さ２０μｍ程度に焼き付けにより形成し、その上
に厚さ０．１〜５μ粕程度の銅メッキ／１１１を形成し
、さらにその上に２μ百程度の厚みのニッケルメッキ層
１２を形成する。FIG. 1 shows an enlarged cross-sectional view of the ultrasonic radiation electrode on the transducer element. In this figure, the thickness of the piezoelectric ceramic is 1.2n.
First, a silver electrode 2 is formed on the ultrasonic radiation side surface of the +n+ transducer element 1 to a thickness of about 20 μm by baking, and a copper plating/111 with a thickness of about 0.1 to 5 μm is formed on it. Further, a nickel plating layer 12 having a thickness of approximately 2 μm is formed thereon.
そして、最も外側の表面に錫とニッケルの合金膜１３を
約１μｍの厚さで電気メッキにより形成して、これらに
より超音波放射電極１０を構成する。Then, a tin-nickel alloy film 13 with a thickness of about 1 μm is formed on the outermost surface by electroplating, thereby forming the ultrasonic radiation electrode 10.
超音波放射電極１０の表面保護膜となる前記錫とニッケ
ルの合金膜１３の形成はたとえば以下の条件で行なう。The formation of the tin-nickel alloy film 13, which serves as the surface protection film of the ultrasonic radiation electrode 10, is performed under the following conditions, for example.
ビロリン酸第１錫 ２０ｇ／Ｑ、 、硫酸ニッケル
２０ｇ／ｌ、ビロリン酸カリ ２００ｇ／ρのメッキ浴
を使用し、ＰＨ８，７のときにおいて、電圧６Ｖ、電流
２ＯＡにて２５分間のメッキを行い、６５％５ｎ−３５
％Ｎｉの厚さ１μｍの合金膜を得た。Stannous birophosphate 20g/Q, Nickel sulfate
Using a plating bath containing 20 g/l of potassium birophosphate and 200 g/ρ, plating was performed for 25 minutes at a voltage of 6 V and a current of 2 OA at pH 8.7, resulting in 65% 5n-35.
%Ni and a thickness of 1 μm was obtained.
形成する合金膜組成は８０％５ｎ−２０％Ｎｉから６０
％５ｎ−４０％Ｎｉまでメッキ浴組成にて任意に変える
ことができる。前記錫とニッケルの合金膜の組成による
耐酢酸性を以下の表１に示す。The alloy film composition to be formed is from 80%5N-20%Ni to 60%Ni.
%5n-40%Ni can be arbitrarily changed by changing the plating bath composition. Table 1 below shows the acetic acid resistance depending on the composition of the tin and nickel alloy film.
表１
表１によれば特に錫８０〜６０％でニッケルが２０〜４
０％の組成の範囲において特に良好な耐酢酸性を示すこ
とがわかる。Table 1 According to Table 1, in particular, tin is 80-60% and nickel is 20-4%.
It can be seen that particularly good acetic acid resistance is exhibited in the composition range of 0%.
上記第１図の実施例では超音波放射電極１０を銀電極２
、銅メッキ層１１、ニッケルメッキ層１２及び表面保護
膜となる錫とニッケルの合金膜１３で構成したが、超音
波放射電極の表面保護膜の下地は各種の金属の電気メッ
キ、無電解メッキ、焼き付は等で電極の形成を行なうこ
とができる。In the embodiment shown in FIG. 1 above, the ultrasonic emission electrode 10 is replaced by the silver electrode
, a copper plating layer 11, a nickel plating layer 12, and a tin-nickel alloy film 13 serving as a surface protective film. Electrodes can be formed by baking or the like.
第２図に本発明の他の実施例を示す。この場合、銅メッ
キ層は省略され、振動子素体１の上の超音波放射電極１
０Ａは、厚み２０μｍ程度の銀電極２の上に２μｍ位の
ニッケルメッキＭ１２を形成し、該ニッケルメッキ層上
に前記錫とニッケルの合金ｊｉ１３を形成した構成とな
っている（発明の効果）
以上説明したように、本発明によれば、圧電振動子に電
極を設けた構成において、超音波放射側の電極の表面保
護膜を、錫とニッケルの合金膜で構成しているので、弱
酸特に酢酸に対する耐食性を改善することができる。こ
のため、ビネ〃−と呼ばれる酢酸水溶液で振動子表面に
付着する水垢の除去を行う場合にも長寿命化を図ること
ができ、硬水などの水垢の発生の多い水を使用する超音
波加湿器に適用すれば効果が大きい。さらに、医療器関
係の薬品の霧化に用いる場合などにおいても、振動子表
面を洗浄するときの洗浄液が限定されない。すなわち、
従来はアルコール系のみであったが、本発明によれば各
種の酸、アルカリなどが使用可能となる。FIG. 2 shows another embodiment of the invention. In this case, the copper plating layer is omitted, and the ultrasonic radiation electrode 1 on the transducer element 1 is
0A has a structure in which a nickel plating M12 of about 2 μm is formed on a silver electrode 2 with a thickness of about 20 μm, and the tin-nickel alloy ji13 is formed on the nickel plating layer (effects of the invention). As explained above, according to the present invention, in a structure in which electrodes are provided on a piezoelectric vibrator, the surface protective film of the electrode on the ultrasonic emission side is composed of an alloy film of tin and nickel, so that weak acids, especially acetic acid, Corrosion resistance against corrosion can be improved. For this reason, it is possible to extend the life of ultrasonic humidifiers that use hard water or other water that often generates limescale, even when removing limescale that adheres to the vibrator surface with an acetic acid aqueous solution called Vinet. It is highly effective if applied to Further, even when the present invention is used for atomizing chemicals related to medical equipment, the cleaning liquid used to clean the surface of the vibrator is not limited. That is,
Conventionally, only alcohols were used, but according to the present invention, various acids, alkalis, etc. can be used.
第１図は本発明に係る超音波加湿器用振動子の実施例を
示す拡大断面図、第２図は本発明の他の実施例を示す拡
大断面図、第３図は基本的な超音波加湿器用振動子の正
断面図、第４図は同平面図である。
１・・・振動子素体、２，３・・・銀電極、４・・・折
り返し部、１０・・・超音波放射電極、１１・・・銅メ
ッキ層、１２・・・ニッケルメッキ層、１３・・・合金
膜。Fig. 1 is an enlarged sectional view showing an embodiment of the ultrasonic humidifier vibrator according to the present invention, Fig. 2 is an enlarged sectional view showing another embodiment of the invention, and Fig. 3 is a basic ultrasonic humidification. A front sectional view of the dexterity vibrator, and FIG. 4 is a plan view thereof. DESCRIPTION OF SYMBOLS 1... Vibrator element body, 2, 3... Silver electrode, 4... Folded part, 10... Ultrasonic radiation electrode, 11... Copper plating layer, 12... Nickel plating layer, 13...Alloy film.
Claims (3)
合金膜で構成したことを特徴とする超音波加湿器用振動
子。(1) A vibrator for an ultrasonic humidifier, characterized in that the surface protection film of the ultrasonic radiation electrode is made of an alloy film of tin and nickel.
ニッケルが４０〜２０％の組成となっている特許請求の
範囲第１項記載の超音波加湿器用振動子。(2) The ultrasonic humidifier vibrator according to claim 1, wherein the tin and nickel alloy film has a composition of 60 to 80% tin and 40 to 20% nickel.
ッキ層を形成し、該ニッケルメッキ層上に前記錫とニッ
ケルの合金膜を形成した構成となっている特許請求の範
囲第１項記載の超音波加湿器用振動子。(3) Claim 1, wherein the ultrasonic radiation electrode has a structure in which a nickel plating layer is formed on a silver electrode, and the tin and nickel alloy film is formed on the nickel plating layer. The vibrator for the ultrasonic humidifier described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12936784A JPS618176A (en) | 1984-06-25 | 1984-06-25 | Vibrator for ultrasonic humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12936784A JPS618176A (en) | 1984-06-25 | 1984-06-25 | Vibrator for ultrasonic humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS618176A true JPS618176A (en) | 1986-01-14 |
Family
ID=15007829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12936784A Pending JPS618176A (en) | 1984-06-25 | 1984-06-25 | Vibrator for ultrasonic humidifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012069899A (en) * | 2010-09-24 | 2012-04-05 | China Steel Corp | Piezoelectric ceramic converter and method of manufacturing same |
-
1984
- 1984-06-25 JP JP12936784A patent/JPS618176A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012069899A (en) * | 2010-09-24 | 2012-04-05 | China Steel Corp | Piezoelectric ceramic converter and method of manufacturing same |
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