JPS59154162A - Atomizing pump - Google Patents
Atomizing pumpInfo
- Publication number
- JPS59154162A JPS59154162A JP2795783A JP2795783A JPS59154162A JP S59154162 A JPS59154162 A JP S59154162A JP 2795783 A JP2795783 A JP 2795783A JP 2795783 A JP2795783 A JP 2795783A JP S59154162 A JPS59154162 A JP S59154162A
- Authority
- JP
- Japan
- Prior art keywords
- electric vibrator
- coating film
- nozzle plate
- oscillation
- film
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
Landscapes
- Special Spraying Apparatus (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は灯油などの液体燃料、水、薬液などの液体の霧
化ポンプに関するものであり、さらに詳しくは圧電振動
子などの電気振動子を利用した物化ポンプに関するもの
である。[Detailed Description of the Invention] Industrial Field of Application The present invention relates to an atomizing pump for liquid fuels such as kerosene, water, chemicals, etc. This relates to a chemical pump.
従来例の構成とその問題点
従来のこの種の霧化ポンプは、第１図に示すように構成
されている。すなわち電気振動子１の相対向する平滑面
には、電極膜２ａ 、２ｂが形成され、電極膜２ｂとノ
ズル板３とは、有機系あるいは無機系の接着剤、または
軟鑞などの固着層４ａを介して接合がされていた。また
、ノズル板３の他方（裏面）の面とボディー６は、上述
の接着剤あるいは軟蔵などと同じ固着層４ｂを介して接
合がされていた。Conventional configuration and its problems A conventional atomizing pump of this type is configured as shown in FIG. That is, electrode films 2a and 2b are formed on opposing smooth surfaces of the electric vibrator 1, and the electrode film 2b and the nozzle plate 3 are bonded to each other by a fixing layer 4a such as organic or inorganic adhesive or soft solder. The connection was made through. Further, the other (back) surface of the nozzle plate 3 and the body 6 were bonded via the adhesive layer 4b, which is the same as the above-mentioned adhesive or soft adhesive.
電気振動子１は主成分がｐｂ○、 ＴｌＯ２ｖ Ｚ ｒ
０２などからなるセラミック体で、円形中央部に開口
部を設けたリング形状を有し、電極膜２ａ、２ｂは銀系
などの厚膜用導電性ペーストの焼結体、あるいは金属蒸
着膜、金属鍍金膜などが用いられていた。ノズル板３は
、厚さ約５ｏμｍ程度でディスク状に加工された金属板
が用いられ、その中央部にはノズル孔６の貫通孔（孔径
約７０〜１００μｍ）が複数個設けられていた。ボディ
ー５は金属の円柱体で上部には、ノズル板３を接合する
ための支持部７、その外周部には組立時にノズル板３を
位置決め等するためループ状の側壁８、また支持部７の
中央には凹状の液体室９が設けられ、液体室９からは左
右方向に液体通路１ｏが一対設けられていた。電極膜２
ａは、外部リード線接続用電極である。従来の霧化ポン
プは、以上の様にして構成がなされていた。Electric vibrator 1 has main components pb○, TlO2v Z r
02, etc., and has a ring shape with an opening in the center of the circle, and the electrode films 2a and 2b are sintered bodies of thick film conductive paste such as silver-based, metal vapor deposited films, metal Plating films were used. The nozzle plate 3 was made of a metal plate processed into a disk shape with a thickness of approximately 5 μm, and a plurality of through holes (hole diameter: approximately 70 to 100 μm) for the nozzle holes 6 were provided in the center of the plate. The body 5 is a cylindrical metal body with a support part 7 on the top for joining the nozzle plate 3, a loop-shaped side wall 8 on the outer periphery for positioning the nozzle plate 3 during assembly, and a support part 7 for the support part 7. A concave liquid chamber 9 was provided in the center, and a pair of liquid passages 1o were provided from the liquid chamber 9 in the left and right direction. Electrode film 2
a is an electrode for connecting an external lead wire. Conventional atomizing pumps have been configured as described above.
この構成では、電気振動子１が表に露出されているため
、電極膜２ａ、２ｂ間、電極膜２ａと固着層４μ間、電
極膜２ａとノズル板３間など、この表面に結露または異
物の付着が生じ、リーク電流が誘起され、そのため電気
的に発振停止や発振周波数を変動させ動作を不安定にす
る欠点があった。In this configuration, since the electric vibrator 1 is exposed to the surface, there may be condensation or foreign matter on this surface, such as between the electrode films 2a and 2b, between the electrode film 2a and the fixed layer 4μ, between the electrode film 2a and the nozzle plate 3, etc. Adhesion occurs and leakage current is induced, which has the disadvantage of electrically stopping oscillation or changing the oscillation frequency, making the operation unstable.
発明の目的
本発明はかかる従来の欠点を解消するもので、発振停止
１発振周波数の不安定性などを除去した実用性の高い霧
化ポンプを提供することを目的とする。OBJECTS OF THE INVENTION The present invention has been made to eliminate such conventional drawbacks, and an object thereof is to provide a highly practical atomizing pump that eliminates the instability of the oscillation frequency when the oscillation is stopped.
発明の構成
この目的を達成するために本発明は、電気振動子の表面
に、弾性と撥水性を有する被＆＆ｆを形成したものであ
る。Structure of the Invention In order to achieve this object, the present invention forms a coating having elasticity and water repellency on the surface of an electric vibrator.
この構成によって、表面に結露または異物の付着が生′
じても、被）膜により保護がなされるため、リーク電流
の発生を阻止できる。従って、電圧印加時の発振停止の
防止、あるいは発振周波数の安定化の作用を有する。This configuration may cause condensation or foreign matter to adhere to the surface.
However, since the coating provides protection, leakage current can be prevented from occurring. Therefore, it has the effect of preventing oscillation from stopping when voltage is applied or stabilizing the oscillation frequency.
実施例の説明
以下、本発明の一実施例を第２図、第３図、を用いて説
明する。尚、第１図と同一部材については、同一番号を
付している。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. Note that the same members as in FIG. 1 are given the same numbers.
第２図において、電気振動子１はリング形状（寸φ
法：外径約 １０喘、内径約φ４門、厚さ約１喘）の圧
電素子で、その平滑な両面上には、電極膜２ａ 、２ｂ
が形成された従来と同様のものである・ノズル板３は、
ディスク状の金属薄膜板で、その中央部には、微ａ（約
φ１ｏｏμｍ程度）な貫通穴かノズル孔６として設けら
れている。電気振動子１の電極膜２ｂと、ノズル板３の
一方の表面は従来と同様の方法で固着層４ａを介し接合
がなされている。この様にして接合された振動子ユニッ
トのノズル板３の他方の面は、金属からなるボディー５
に従来と同様の方法で固着層４′ｂを介し、接合される
。ボディー６にはノズル板３との接合のだめの支持部７
．振動子ユニット組立時の位置決めならびに該ユニット
部を保護するために側壁８、液体を充填する液体室９．
液体供給のための液体通路１０などが設けられている。In FIG. 2, the electric vibrator 1 is a ring-shaped piezoelectric element (dimensions: outer diameter of about 10mm, inner diameter of about 4mm, thickness of about 1mm). , 2b
The nozzle plate 3 is similar to the conventional one in which
It is a disk-shaped metal thin film plate, and a micro-a (approximately φ10 μm) through hole or nozzle hole 6 is provided in the center of the plate. The electrode film 2b of the electric vibrator 1 and one surface of the nozzle plate 3 are bonded to each other via a fixing layer 4a in the same manner as in the prior art. The other surface of the nozzle plate 3 of the vibrator unit joined in this way is a body 5 made of metal.
are bonded to each other via the fixing layer 4'b in the same manner as in the prior art. The body 6 has a support part 7 for joining with the nozzle plate 3.
．． A side wall 8 for positioning the transducer unit during assembly and for protecting the unit, and a liquid chamber 9 for filling with liquid.
A liquid passage 10 for supplying liquid is provided.
この様にして組立られた霧化ポンプユニットハ、発振回
路（図省略）からの電圧を印加するための接続線にリー
ド線ｆｆ１ａが電気振動子１の電極膜２ａ上に接続され
る。次に、このリード線１１ａの接続部を含め、電極膜
２ａが全体的に被覆され、 るよう弾性と撥水性を
有した被覆膜１２を形成した。被覆膜１２はシリコーン
ゴムを薄く塗布形成したものを用いた。リード線１１ｂ
は、負側電線である。In the atomization pump unit assembled in this manner, a lead wire ff1a is connected to the electrode film 2a of the electric vibrator 1 to a connection wire for applying a voltage from an oscillation circuit (not shown). Next, a covering film 12 having elasticity and water repellency was formed so as to cover the entire electrode film 2a, including the connection portion of the lead wire 11a. The coating film 12 was formed by thinly coating silicone rubber. Lead wire 11b
is the negative wire.
上記構成において、発振回路から電圧印加により、電気
振動子１は発振され、固着層４ｂを介してノズル板３を
加振する。ノズル板３の加振によシ、液体室９′に充填
された液体は加圧され、ノズ ′ル孔６を介し噴霧化さ
れる。この動作時に、電気振動子１の表面に結露あるい
は異物が付着した場合、リーク電流が生じ、発振停止や
発振周波数を変動させ、噴霧化を不安定にする原因にな
っていた。しかし、本発明の構成においては、電気振動
子１の電極膜２ａを全体に覆う様、被覆膜１２を形成し
保護しているため、上記の様な事態でもリーク電流の発
生は防止できる。従って、発振停止や発振周波数の変動
のない、安定動作を実現できる。また、被覆膜１２は、
ゴム弾性を有す薄い膜を形成しているため、被覆膜１２
がＱ値に負荷質量として与える影響は殆んど無いという
効果もある。In the above configuration, the electric vibrator 1 is oscillated by applying a voltage from the oscillation circuit, and vibrates the nozzle plate 3 via the fixed layer 4b. Due to the vibration of the nozzle plate 3, the liquid filled in the liquid chamber 9' is pressurized and atomized through the nozzle hole 6. During this operation, if dew condensation or foreign matter adheres to the surface of the electric vibrator 1, a leakage current is generated, causing the oscillation to stop or the oscillation frequency to fluctuate, making atomization unstable. However, in the configuration of the present invention, since the coating film 12 is formed to completely cover and protect the electrode film 2a of the electric vibrator 1, the occurrence of leakage current can be prevented even in the above-mentioned situation. Therefore, stable operation can be achieved without stopping oscillation or changing the oscillation frequency. Further, the coating film 12 is
Since a thin film having rubber elasticity is formed, the coating film 12
Another effect is that the load mass has almost no influence on the Q value.
第３図は、本発明の他の実施例を示すもので、霧化ポン
プユニットを組立後、電気振動子１（リード線１１ａ接
続部を含む）の表面と、電気振動子１とノズル板３との
固着層４ｂ端部表面と、ノズル孔６の部分を除いたノズ
ル板３の表面全体に渡シ、被覆膜１２を前記実施例と同
様に塗布形成したものである。この構成においても、前
記実施例と同様の効果が得られた。FIG. 3 shows another embodiment of the present invention, in which the surface of the electric vibrator 1 (including the connection part of the lead wire 11a) and the surface of the electric vibrator 1 and the nozzle plate 3 are shown after the atomizing pump unit is assembled. A coating film 12 is applied over the entire surface of the nozzle plate 3 except for the end surface of the fixing layer 4b and the nozzle hole 6 in the same manner as in the previous embodiment. Also in this configuration, the same effects as in the above embodiment were obtained.
発明の効果
以上のように本発明の霧化ポンプによれば、次の効果が
得られる。Effects of the Invention As described above, the atomizing pump of the present invention provides the following effects.
（１）電気振動子の表面（電極膜表面を含む）を弾性と
撥水性を有した被覆膜で保護することにより、結露や異
物の付着などによるリーク電流の発生を防止することが
でき、そのため動作時の発振停止や発振周波数の変動に
よる動作不安定さを阻止する効果が得られる。(1) By protecting the surface of the electric vibrator (including the surface of the electrode membrane) with a coating film that has elasticity and water repellency, it is possible to prevent the occurrence of leakage current due to condensation or adhesion of foreign matter. Therefore, the effect of preventing oscillation stop during operation and instability of operation due to fluctuations in oscillation frequency can be obtained.
（２ン 電気振動子の表面と、電気振動子とノズル板
との固着層端面、ノズル孔周辺を除いたノズル板の表面
全体に渡シ、弾性と撥水性を有した被覆膜で保護するこ
とにより、上記と同様の効果が得られる。(2) Protect the surface of the electric vibrator, the end face of the adhesive layer between the electric vibrator and the nozzle plate, and the entire surface of the nozzle plate except for the area around the nozzle hole with a coating film that has elasticity and water repellency. By doing so, the same effect as above can be obtained.
第１図は従来の構成による転化ポンプを示す断面図、第
２図、第３図は本発明の一実施例を示すす断面図である
。
１・・・・・・電気振動子、２ａ・・・・・・電極膜、
２ｂ・・・・・・電極膜、３・・・・・・ノズル板、４
ａ・・・・・・固着層、４ｂ・・・・・・固着層、５・
・・・・・ボディー、６・・・・・・ノズル孔、７・・
・・・・支持部、８・・・・・・側暗、９・・・・−・
液体室、１０・・・・・・液体通路、１１ａ・・・・・
・リード線、１２・・・・・・被覆膜。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第３図FIG. 1 is a sectional view showing a conventional conversion pump, and FIGS. 2 and 3 are sectional views showing an embodiment of the present invention. 1... Electric vibrator, 2a... Electrode film,
2b... Electrode film, 3... Nozzle plate, 4
a...Fixed layer, 4b...Fixed layer, 5.
...Body, 6...Nozzle hole, 7...
・・・・Support part, 8・・・・Side dark, 9・・・・−・
Liquid chamber, 10...Liquid passage, 11a...
・Lead wire, 12...Coating film. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3
Claims (1)
と、電気振動子によって加振されるーないし一以上のノ
ズル孔を設けたノズル板と、これらを支持するボディー
とが、それぞれ固着層によって接合される構成からなシ
、前記電気振動子の表面に、電気絶縁性と弾性ならびに
撥水性を有する被覆膜を形成したことを特徴とする霧化
ポンプ。 （２ン 電気振動子表面および電気振動子とノズル板
との接合端面およびノズル板の表面に被覆膜を形成した
特許請求の範囲第１項記載の餠化ポツプ。(1) An electric vibrator with an electrode film provided on opposing smooth surfaces, a nozzle plate that is excited by the electric vibrator or has one or more nozzle holes, and a body that supports these, respectively. 1. An atomization pump characterized in that the electric vibrator is joined by a fixing layer, and a coating film having electrical insulation, elasticity, and water repellency is formed on the surface of the electric vibrator. (2) The annealed pop according to claim 1, wherein a coating film is formed on the surface of the electric vibrator, the joint end surface between the electric vibrator and the nozzle plate, and the surface of the nozzle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2795783A JPS59154162A (en) | 1983-02-22 | 1983-02-22 | Atomizing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2795783A JPS59154162A (en) | 1983-02-22 | 1983-02-22 | Atomizing pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59154162A true JPS59154162A (en) | 1984-09-03 |
| JPH0126749B2 JPH0126749B2 (en) | 1989-05-25 |
Family
ID=12235368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2795783A Granted JPS59154162A (en) | 1983-02-22 | 1983-02-22 | Atomizing pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59154162A (en) |
-
1983
- 1983-02-22 JP JP2795783A patent/JPS59154162A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0126749B2 (en) | 1989-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6340592B2 (en) | ||
| JPS59154162A (en) | Atomizing pump | |
| JPS59154161A (en) | Atomizing pump | |
| CN217411237U (en) | Ultrasonic atomizer and atomizing device | |
| JPS59132961A (en) | Atomizing pump | |
| JPS59132964A (en) | Atomizing pump | |
| JPH0210709B2 (en) | ||
| JPS6022958A (en) | Atomizing pump | |
| JPS61111164A (en) | Atomizing pump | |
| JPS6366270B2 (en) | ||
| JPS6154252A (en) | Atomizing pump | |
| JPS5987064A (en) | Atomizing pump unit | |
| JP2549911Y2 (en) | Ultrasonic transducer | |
| JPS6352546B2 (en) | ||
| JPS6111171A (en) | Atomizing pump | |
| JPH0210708B2 (en) | ||
| JPH0811005Y2 (en) | Bimorph type piezoelectric speaker | |
| JPS5922673A (en) | Atomizing pump | |
| JPS632224B2 (en) | ||
| JPS5833304A (en) | Oscillator and its controlling method | |
| JPS632222B2 (en) | ||
| JPS60187362A (en) | Atomizing pump | |
| JPH0251907A (en) | Chip type piezoelectric resonator | |
| JPH01274878A (en) | Production of ultrasonic oscillator | |
| JPS648584B2 (en) |