JPS6154252A - Atomizing pump - Google Patents
Atomizing pumpInfo
- Publication number
- JPS6154252A JPS6154252A JP59174315A JP17431584A JPS6154252A JP S6154252 A JPS6154252 A JP S6154252A JP 59174315 A JP59174315 A JP 59174315A JP 17431584 A JP17431584 A JP 17431584A JP S6154252 A JPS6154252 A JP S6154252A
- Authority
- JP
- Japan
- Prior art keywords
- liquid chamber
- liquid
- nozzle plate
- vibrator
- vibration
- 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シ、さらに詳しくは、圧電
倣動子などの電気振動子を利用した霧化ポンプに閃する
もので礎る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to atomizing pumps for liquid fuels such as kerosene, and liquids such as water and chemicals. Founded on an atomization pump that uses a child.
従来の技術
従来この種の霧化ポンプは、第４図に示すように構成さ
れていた。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
固着層４ａを介して接合がされていた。さらに、ノズル
板３の他方の面と、ボディー５は固着層４ｂを介して接
合されていた。2. Description of the Related Art Conventionally, this type of atomizing pump has been constructed as shown in FIG. Electrode films 2a and 2b were formed on opposing smooth surfaces of the electric vibrator 1, and the electrode film 2b and the nozzle plate 3 were bonded via a fixing layer 4a. Further, the other surface of the nozzle plate 3 and the body 5 were bonded to each other via a fixing layer 4b.
電気振動子１￥ｉ、主成分がＰｂＯ，ＴｉＯ２、ＺｒＯ
□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２ａ１２ｂは、厚膜用
避電性ペーストの焼結体や、金属を蒸着した金属薄膜体
などからなり、ノズル板３は厚さ約５０〜１００μｍ程
度の金属円板で、コバールやステンレスなどが用いられ
ていた。さらに、ノズル板３は、その中央部に１つまた
は複数個の貫通したノズル孔６（孔径的７０〜１００μ
ｍ）が設けられていた。固着層４ａ、４ｂＫは、樹脂接
着剤や半田などが用いられていた。Electric vibrator 1￥i, main components are PbO, TiO2, ZrO
It is a ceramic body made of □, etc., and has a ring shape with an opening in the center of the circle. The nozzle plate 3 is a metal disc having a thickness of approximately 50 to 100 μm, and is made of Kovar, stainless steel, or the like. Furthermore, the nozzle plate 3 has one or more penetrating nozzle holes 6 (70 to 100 μm in diameter) in its center.
m) was provided. The fixing layers 4a and 4bK are made of resin adhesive, solder, or the like.
次に、ボディー５は、金属性円柱体を基体として、パイ
プ状の液体通路７が一対、液体室８を貫通する様、構成
されていた。捷だ液体室８ば、ホティー５と中心−軸を
同じにした円筒形の容器部からなシ、この液体室８の上
面の円周部には、ノズル板３を接合する固定部９が設け
られている。次に電極膜２ａは、発振回路（図省略）か
らのリード線接続用電極である。この状爵で液体室８に
液体を充填し発振回路より所定電圧を印加すると、第２
図に示すように、ノズル板１の振動系は、電気振動子１
の径振動（図中矢印１）により加振され、撓み振動（図
中矢印２）に変換される。撓み振動に変換されたノズル
板３は、液体室８内の液体を加圧し、ノズル孔６より液
体を約数１０μｍの粒径で、液体噴霧する。このように
して、霧化ポンプは構成されていた。Next, the body 5 has a metallic cylindrical body as a base, and is configured such that a pair of pipe-shaped liquid passages 7 pass through a liquid chamber 8. The liquid chamber 8 is a cylindrical container having the same center and axis as the hottie 5, and a fixing part 9 to which the nozzle plate 3 is attached is provided on the circumference of the upper surface of the liquid chamber 8. It is being Next, the electrode film 2a is an electrode for connecting a lead wire from an oscillation circuit (not shown). In this state, when the liquid chamber 8 is filled with liquid and a predetermined voltage is applied from the oscillation circuit, the second
As shown in the figure, the vibration system of the nozzle plate 1 includes an electric vibrator 1
is excited by the radial vibration (arrow 1 in the figure), which is converted into flexural vibration (arrow 2 in the figure). The nozzle plate 3, which has been converted into a bending vibration, pressurizes the liquid in the liquid chamber 8, and sprays the liquid from the nozzle hole 6 with a particle size of about 10 μm. In this way, the atomization pump was constructed.
発明が解決しようとする問題点
この構成では、第３図に示すようにノズル板９の撓み振
動時、液体中に発生する平面波が、液体室旦の平面底部
に衝突し、これによシ発生した反射波（図中→印）が、
進行波（図中Ｑ印ンと衝突し進行波を乱し不安定にする
。結果として、液体室旦の内圧が変動し、液体噴霧動作
時に噴霧量変動や、断続的噴霧状店や、液体室ｑに気泡
の発生が多くなるなど、噴霧化特性を悪くするなどの問
題があった。Problems to be Solved by the Invention In this configuration, as shown in FIG. 3, when the nozzle plate 9 bends and vibrates, a plane wave generated in the liquid collides with the flat bottom of the liquid chamber, thereby causing damage. The reflected wave (marked → in the figure) is
The traveling wave collides with the traveling wave (marked Q in the figure) and disturbs the traveling wave, making it unstable. As a result, the internal pressure of the liquid chamber fluctuates, causing fluctuations in the spray amount during liquid spraying, intermittent spray-like formations, and There were problems such as increased generation of bubbles in chamber q, which worsened the atomization characteristics.
問題点を解決するための手段
本発明は、かかる従来の欠点を除去するもので、霧化ポ
ンプの構成において、ノズル板の振動により加圧される
液体室の内圧を安定化し、霧化特性の安定した霧化ポン
プを提供するものである。その達成のた−めに、本発明
は電気振動子とノズル板と、これらを支持するボディー
とが、それぞれ固着剤で接合された構成からなシ、前記
ボディーに設けられた液体室の容器底面部に振動波の吸
収体を設けたものである。Means for Solving the Problems The present invention eliminates these conventional drawbacks. In the configuration of an atomization pump, the internal pressure of the liquid chamber pressurized by the vibration of the nozzle plate is stabilized, and the atomization characteristics are improved. This provides a stable atomization pump. In order to achieve this, the present invention has a structure in which an electric vibrator, a nozzle plate, and a body supporting them are each bonded with an adhesive, and the bottom surface of a container of a liquid chamber provided in the body is A vibration wave absorber is provided in the part.
作用
この構成によって、ノズル板の振動により発生する平面
波は、液体室底面に設けた吸収体により吸収される。従
って、液体室底面部より発生する反射波は抑制され、反
ｔＭ波と平面波との相互衝突は殆んど無くなり、液体室
の内圧は安定化きれる。Function: With this configuration, plane waves generated by vibration of the nozzle plate are absorbed by the absorber provided on the bottom surface of the liquid chamber. Therefore, reflected waves generated from the bottom surface of the liquid chamber are suppressed, collisions between anti-tM waves and plane waves are almost eliminated, and the internal pressure of the liquid chamber is stabilized.
結果として、噴霧化特性の安定化が図れるものである。As a result, the atomization characteristics can be stabilized.
実施例
以下、本発明の一実施例を第１．２図を用いて説明する
。なお、これらの図において、第３．４図と同じものに
ついては、同一番号を付している。EXAMPLE An example of the present invention will be described below with reference to FIG. 1.2. In addition, in these figures, the same numbers are attached to the same parts as in FIG. 3.4.
第１図において、電気振動子１は外径約１０ｍｍ開口径
約４．０ｍｍ、厚さ約ｔｏａｍのリング状で、従来例と
同様のもので、電極１１Ａ２ａ１２ｂが形成されている
。ノズル板３は、厚さ約５０〜１００μｍ程度の金属円
板（外径約１６ｍｍ）で、コバールやステンレス等の従
来例と同様のものを選んだ。ノズル板ａの中央部には複
数個のノズル孔６が設けられている。ついで、電気振動
子１の電極膜２ｂと、ノズル板３の一方の面は、従来例
と同様の固着層４ａを介して接合され、ノズル板ａの他
方の面とボディー５の固定部９とは、固着層４ｂを介し
て接合される。なお、このボディー５け、従来上側じ金
属性の円柱を基体とした形状で、バイブ状の液体通路７
、円筒容器状の液体室８、さらにその上部周辺面に円環
状の固定部９などから構成されている。液体室８の底面
には、ナイロン、アクリルなどの不織布からなる多孔質
材料を吸収体１０に選び、厚さ約１ ａｍのシート状で
、はぼ全面に貼付がなされている。次に電極膜２ａは、
発振回５！ｉ！＋（図省略）からのリード線接続用電極
である。In FIG. 1, an electric vibrator 1 has a ring shape with an outer diameter of about 10 mm, an opening diameter of about 4.0 mm, and a thickness of about toam, and is similar to the conventional example, and has electrodes 11A2a12b formed thereon. The nozzle plate 3 is a metal disc (outside diameter of about 16 mm) with a thickness of about 50 to 100 μm, and is made of Kovar, stainless steel, or the like as in the conventional example. A plurality of nozzle holes 6 are provided in the center of the nozzle plate a. Next, the electrode film 2b of the electric vibrator 1 and one surface of the nozzle plate 3 are joined via the fixing layer 4a similar to the conventional example, and the other surface of the nozzle plate a and the fixing part 9 of the body 5 are bonded. are bonded via the fixed layer 4b. In addition, this body has a conventional shape with a metal cylinder as its base on the upper side, and a vibrator-like liquid passage 7.
, a liquid chamber 8 in the form of a cylindrical container, and an annular fixing part 9 on the upper peripheral surface thereof. On the bottom of the liquid chamber 8, an absorbent material 10 made of a porous material made of non-woven fabric such as nylon or acrylic is pasted over the entire surface in the form of a sheet with a thickness of about 1 am. Next, the electrode film 2a is
Oscillation times 5! i! This is an electrode for connecting a lead wire from + (not shown).
上記構成において、発振回路からの電圧印加により、電
気振動子１／ｄ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は第２図に示した様に撓み
振動をする。その結果、液体室８に充填された液体は加
圧され、加圧された液体はノズル孔６を介して噴霧化さ
れる。このとき、液体室８内には上述したように、平面
波が発生する。このとき平面波は、はぼ直進性を持ち、
液体室８の底面に衝突した後、一部が反射波として反射
されるが、本発明の構成では、液体室旦の底面に吸収体
１０を設けているため、反射波は殆んど発生しなくなる
。従って液体室内は、一定の周期を持った平面波の動作
状店が得られ、内圧は安定化される。結果として噴霧化
特性を安定化することができる。In the above configuration, the electric vibrator is oscillated by 1/d by voltage application from the oscillation circuit, and the nozzle plate 3 is vibrated through the fixed layer 4b. The nozzle plate 3 bends and vibrates as shown in FIG. As a result, the liquid filled in the liquid chamber 8 is pressurized, and the pressurized liquid is atomized through the nozzle hole 6. At this time, a plane wave is generated in the liquid chamber 8 as described above. At this time, the plane wave has almost straight propagation,
After colliding with the bottom surface of the liquid chamber 8, a part of the wave is reflected as a reflected wave, but in the configuration of the present invention, since the absorber 10 is provided on the bottom surface of the liquid chamber 8, almost no reflected wave is generated. It disappears. Therefore, a plane wave motion with a constant period is obtained in the liquid chamber, and the internal pressure is stabilized. As a result, the atomization characteristics can be stabilized.
次に、上記実施例と同じ構成で、液体室８の底面に吸収
体１０の材料を変えた構成について説明する。第１には
、吸収体１０に発泡質材料からなる有機系スポンジと発
泡金属にッケル）を選んだ。厚さは、約２ｍｍで形状は
前記実施例とほぼ同じとした。第２には、同様に弾性材
料にシリコーンゴムを選んだ。厚さは、約１鱈で前記実
施例と同形状を選んだ。各々の動作確認をした結果、前
記実施例とほぼ同様の結果を得た。上述の結果より、液
体室８の底面部に、振！ｖＪ波の吸収体１ｏ材料を設置
することで、底面部からの反射波を抑制し、液体室８の
内圧を安定化することができること力辷抑］る。Next, a configuration will be described in which the same configuration as the above embodiment is used, but the material of the absorber 10 on the bottom surface of the liquid chamber 8 is changed. First, for the absorber 10, an organic sponge made of a foamed material and a foamed metal were selected. The thickness was about 2 mm, and the shape was almost the same as in the previous example. Secondly, silicone rubber was similarly chosen as the elastic material. The thickness was approximately 1 mm and the same shape as in the previous example was selected. As a result of confirming the operation of each, almost the same results as in the previous example were obtained. From the above results, it is clear that the bottom of the liquid chamber 8 is shaken! By installing the vJ wave absorber 1o material, reflected waves from the bottom part can be suppressed and the internal pressure of the liquid chamber 8 can be stabilized.
発明の効果
以上のように、本発明の霧化ポンプによれば、液体室の
底面部に振動波の吸収体を設けることにより、液体室底
面からの反射波を抑制できる。従って、液体室内の内圧
を安定にし、結果として噴霧化特性の安定化が図れる。Effects of the Invention As described above, according to the atomizing pump of the present invention, reflected waves from the bottom of the liquid chamber can be suppressed by providing a vibration wave absorber on the bottom of the liquid chamber. Therefore, the internal pressure in the liquid chamber can be stabilized, and as a result, the atomization characteristics can be stabilized.
第１図は本発明の一実施例を示す断面図、第２図は霧化
ポンプの基本動作を説明する断面図、第３図は従来の動
作状店を説明する断面図、第４図は従来の霧化ポンプの
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・・川・固着層、４ｂ・・・・・・固着層、５・・・
・・・ボディー、６・・・・・・ノズル孔、７・・・・
・・液体通路、８・・・・・・液体室、９・・・・・・
固定部、１゜・・・・・・吸収体。
代理人の氏名 弁理士 中 尾 軟 男 はが１名列
１ 図
第２図
第３図FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view explaining the basic operation of an atomizing pump, FIG. 3 is a sectional view explaining the conventional operation state, and FIG. FIG. 1 is a cross-sectional view of a conventional atomization pump. 1... Electric vibrator, 2a... Electrode film,
2b... Electrode film, 3... Nozzle plate, 4
a... river/fixed layer, 4b... fixed layer, 5...
...Body, 6...Nozzle hole, 7...
...Liquid passage, 8...Liquid chamber, 9...
Fixed part, 1°...Absorber. Name of agent: Patent attorney Masuo Nakao (1 name)
1 Figure 2 Figure 3
Claims (2)
動子と、この電気振動子によって加振されるノズル板と
、これらを支持するボディーとが、それぞれ固着剤で接
合された構成からなり、前記ボディーに設けられた液体
室の底面部に振動波の吸収体を設けた霧化ポンプ。(1) An electric vibrator with an electrode film provided on opposing substantially smooth principal surfaces, a nozzle plate excited by this electric vibrator, and a body supporting these are each joined with a bonding agent. An atomizing pump comprising a vibration wave absorber provided at the bottom of a liquid chamber provided in the body.
ら構成した特許請求の範囲第１項記載の霧化ポンプ。(2) The atomizing pump according to claim 1, wherein the absorber is made of a foamed, porous, and elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59174315A JPS6154252A (en) | 1984-08-22 | 1984-08-22 | Atomizing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59174315A JPS6154252A (en) | 1984-08-22 | 1984-08-22 | Atomizing pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6154252A true JPS6154252A (en) | 1986-03-18 |
| JPH0373339B2 JPH0373339B2 (en) | 1991-11-21 |
Family
ID=15976501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59174315A Granted JPS6154252A (en) | 1984-08-22 | 1984-08-22 | Atomizing pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6154252A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04207800A (en) * | 1990-11-30 | 1992-07-29 | Koji Toda | Ultrasonic atomizer |
| EP1775027A1 (en) * | 2005-10-13 | 2007-04-18 | Industrial Technology Research Institute | Micro-droplet generator |
-
1984
- 1984-08-22 JP JP59174315A patent/JPS6154252A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04207800A (en) * | 1990-11-30 | 1992-07-29 | Koji Toda | Ultrasonic atomizer |
| EP1775027A1 (en) * | 2005-10-13 | 2007-04-18 | Industrial Technology Research Institute | Micro-droplet generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0373339B2 (en) | 1991-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |