JP4961607B2 - Ultrasonic atomizer - Google Patents

Ultrasonic atomizer Download PDF

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JP4961607B2
JP4961607B2 JP2006316688A JP2006316688A JP4961607B2 JP 4961607 B2 JP4961607 B2 JP 4961607B2 JP 2006316688 A JP2006316688 A JP 2006316688A JP 2006316688 A JP2006316688 A JP 2006316688A JP 4961607 B2 JP4961607 B2 JP 4961607B2
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vibration
ultrasonic vibrator
ultrasonic
liquid
oscillation circuit
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JP2008126190A (en
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浩二 岡田
康信 八木田
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Honda Electronics Co Ltd
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Honda Electronics Co Ltd
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Description

本発明は、超音波振動子を径方向に振動して、液体と接触する面に発生する泡を除去するようにした超音波霧化装置に関するものである。   The present invention relates to an ultrasonic atomizer that vibrates an ultrasonic transducer in a radial direction to remove bubbles generated on a surface that contacts a liquid.

従来、図２に示すように、霧化槽１に霧化する液体２を入れ、霧化槽１の底部に弾力性部材４によって装着した超音波振動子３に縦振動発生する周波数を持つ発振回路５を接続して、この発振回路５から発振出力を超音波振動子３に印加すると、この超音波振動子３が縦振動することにより、液体２が霧化して霧化粒子が空中に飛散されるように構成されている。 Conventionally, as shown in FIG. 2, the liquid 2 to be atomized is put into the atomizing tank 1 and the ultrasonic vibrator 3 attached to the bottom of the atomizing tank 1 by the elastic member 4 has a frequency that generates longitudinal vibration. When the circuit 5 is connected and the oscillation output from the oscillation circuit 5 is applied to the ultrasonic vibrator 3, the ultrasonic vibrator 3 vibrates longitudinally, whereby the liquid 2 is atomized and the atomized particles are scattered in the air. I Ru is being sea urchin configuration.

しかしながら、このよう構成された超音波霧化装置では、超音波振動子３を駆動している時に、超音波振動子３の周囲で泡６が発生し、この泡６が多量に発生すると、超音波振動子３の液体２との接触面３ａに付着するため、超音波振動子３で発生する超音波振動効率が悪くなり、最悪の場合は、超音波振動子３の接触面３ａを覆うようになると、超音波振動子３が空焚きの状態となり、超音波振動子３が破損するという問題があり、この空焚き状態は超音波振動子３の縦振動では泡５は全く取れないので、超音波霧化装置を停止して、液体２を出し、超音波振動子３の液体２との接触面３ａを綿棒等で定期的に除去するようにしている。
特開２００３−２１４６６４ However, in the ultrasonic atomizer configured as described above, when the ultrasonic vibrator 3 is driven, bubbles 6 are generated around the ultrasonic vibrator 3 and a large amount of the bubbles 6 is generated. Since the ultrasonic vibrator 3 adheres to the contact surface 3a with the liquid 2, the ultrasonic vibration efficiency generated by the ultrasonic vibrator 3 is deteriorated. In the worst case, the contact face 3a of the ultrasonic vibrator 3 is covered. Then, there is a problem that the ultrasonic vibrator 3 is in an empty state and the ultrasonic vibrator 3 is damaged. In this empty state, the bubbles 5 cannot be removed at all by the longitudinal vibration of the ultrasonic vibrator 3, The ultrasonic atomizer is stopped, the liquid 2 is discharged, and the contact surface 3a of the ultrasonic vibrator 3 with the liquid 2 is periodically removed with a cotton swab or the like.
JP 2003-214664 A

解決しようとする問題点は、超音波振動子が発生した泡で覆われると、空焚きの状態となり、超音波振動子３が破損するという問題がある。   The problem to be solved is that when the ultrasonic vibrator is covered with the generated bubbles, the ultrasonic vibrator 3 is broken and the ultrasonic vibrator 3 is damaged.

本発明では、霧化槽に霧化する液体を入れ、超音波振動子は霧化槽の底部に装着され、厚み振動発振回路は超音波振動子に接続されて厚み方向の振動を発生し、径方向振動発振回路は超音波振動子に接続されて径方向の振動を発生し、切り替え制御部は厚み振動発振回路及び径方向振動発振回路とを交互に駆動するように構成され、厚み方向振動発振回路が常時駆動されて液体を霧化し、径方向振動発振回は予め決められた期間毎に駆動され、超音波振動子の液体と接触する面に付着する泡を径方向振動で除去するようにするものである。 In the present invention, the liquid to be atomized is placed in the atomization tank , the ultrasonic vibrator is attached to the bottom of the atomization tank, the thickness vibration oscillation circuit is connected to the ultrasonic vibrator and generates vibration in the thickness direction, The radial vibration oscillation circuit is connected to the ultrasonic vibrator to generate radial vibration, and the switching control unit is configured to alternately drive the thickness vibration oscillation circuit and the radial vibration oscillation circuit, and the thickness direction vibration. The oscillation circuit is always driven to atomize the liquid, and the radial vibration oscillation times are driven every predetermined period so as to remove bubbles adhering to the surface of the ultrasonic vibrator in contact with the liquid by radial vibration. It is to make.

本発明の超音波霧化装置では、常時は厚み方向振動発振回路を駆動して液体を霧化し、径方向振動発振回路は予め決められた期間毎に駆動され、超音波振動子の液体と接触する面に付着する泡を径方向振動で除去するようにしているので、空焚きを防ぐことができるという利点がある。 In the ultrasonic atomizing device of the present invention, the thickness direction vibration oscillation circuit is normally driven to atomize the liquid, and the radial direction vibration oscillation circuit is driven at a predetermined period to contact the liquid of the ultrasonic vibrator. Since the bubbles adhering to the surface to be removed are removed by radial vibration, there is an advantage that air blowing can be prevented.

本発明では、径方向振動発振回路は予め決められた期間毎に駆動することにより、超音波振動子の液体と接触する面に付着する泡を径方向振動で除去することができた。 In the present invention, the radial vibration oscillation circuit is driven at predetermined intervals, so that bubbles adhering to the surface of the ultrasonic vibrator that contacts the liquid can be removed by radial vibration.

図１は本発明の実施例の超音波霧化装置の正面断面図で、１は霧化槽、２は霧化する液体、３は超音波振動子、４は弾力性部材で、これらの構成は上記従来例と同じであるので説明は省略するが、本実施例では、超音波振動子３に液体２を霧化するために超音波振動子３に厚み方向の振動を発生する周波数の発振出力を印加する厚み振動発振回路７を接続し、又、超音波振動子３に径方向振動を発生する径方向振動発振回路８を接続し、さらに、これらの厚み振動発振回路７と径方向振動発振回路８とを交互に駆動する切り替え制御部９を接続する。   FIG. 1 is a front sectional view of an ultrasonic atomizing apparatus according to an embodiment of the present invention. 1 is an atomizing tank, 2 is a liquid to be atomized, 3 is an ultrasonic transducer, and 4 is an elastic member. Since this is the same as the above-described conventional example, the description thereof will be omitted. In this embodiment, in order to atomize the liquid 2 on the ultrasonic transducer 3, oscillation of a frequency that generates vibration in the thickness direction of the ultrasonic transducer 3 is performed. A thickness vibration oscillation circuit 7 for applying output is connected, and a radial vibration oscillation circuit 8 for generating radial vibration is connected to the ultrasonic vibrator 3, and further, these thickness vibration oscillation circuit 7 and radial vibration are connected. A switching control unit 9 that alternately drives the oscillation circuit 8 is connected.

このように構成した本実施例の超音波霧化装置では、霧化槽１に霧化する液体２を入れ、切り替え制御部９が厚み方向振動回路７に駆動信号を入力して、常時は超音波振動子３に厚み振動発振回路７から厚み方向振動を発生する周波数の発振出力を入力すると、霧化槽１の液体２が霧化され、常時この霧化状態で霧化粒子が発生されているが、切り替え制御部９に予め決められた時間が設定され、この切り替え時間後に切り替え制御部９から径方向振動発振回路８に駆動信号が入力されると、径方向振動発振回路８が駆動され、径方向振動発振回路８から超音波振動子３に径方向振動が発生するような周波数を持つ発振出力が印加されるので、超音波振動子３に径方向振動が発生し、この径方向振動によって、超音波振動子３の液体２との接触面３ａに付着している泡６を揺すって浮遊させるようにする。 In the ultrasonic atomizing apparatus of the present embodiment configured as described above, the liquid 2 to be atomized is put into the atomizing tank 1, and the switching control unit 9 inputs a drive signal to the thickness direction vibration circuit 7. When an oscillation output having a frequency that generates vibration in the thickness direction is input from the thickness vibration oscillation circuit 7 to the sound wave vibrator 3, the liquid 2 in the atomization tank 1 is atomized, and atomized particles are always generated in this atomization state. are, but are set time which is predetermined in the switching control unit 9, a drive signal from the switching control unit 9 after the switching time in the radial vibration oscillation circuit 8 is input, the radial vibration oscillation circuit 8 is driven Since an oscillation output having a frequency at which radial vibration is generated is applied from the radial vibration oscillation circuit 8 to the ultrasonic vibrator 3, radial vibration is generated in the ultrasonic vibrator 3, and this radial vibration is generated. To contact the ultrasonic transducer 3 with the liquid 2. Shake foam 6 adhering to the surface 3a so as to float.

このように構成した本発明では、超音波振動子３に径方向振動を発生することにより、超音波振動子３の液体２との接触面３ａに付着している泡６は径方向振動によって揺すられるので、泡６は超音波振動子３の液体２との接触面３ａから浮遊し、確実に泡６を除去することができる。    In the present invention configured as described above, by generating radial vibration in the ultrasonic vibrator 3, the bubbles 6 attached to the contact surface 3a of the ultrasonic vibrator 3 with the liquid 2 are even shaken by the radial vibration. Therefore, the bubble 6 floats from the contact surface 3a with the liquid 2 of the ultrasonic transducer 3, and the bubble 6 can be reliably removed.

なお、本発明の超音波霧化装置では、径方向振動発振回路８からの発振出力によって超音波振動子３を径方向に振動して泡をとるようにしたが、超音波振動子を使用して、泡が発生するような他の装置にも応用することができる。 In the ultrasonic atomizer of the present invention, the ultrasonic vibrator 3 is vibrated in the radial direction by the oscillation output from the radial vibration oscillation circuit 8 to take bubbles, but the ultrasonic vibrator is used. Thus, the present invention can be applied to other apparatuses in which bubbles are generated.

本発明の実施例の超音波霧化装置の正面断面図である。It is front sectional drawing of the ultrasonic atomizer of the Example of this invention. 従来の超音波霧化装置の正面断面図である。It is front sectional drawing of the conventional ultrasonic atomizer.

１ 霧化槽
２ 液体
３ 超音波振動子
４ 弾力性部材
７ 厚み方向振動発振回路
８ 径方向振動発振回路
９ 切り替え制御部 DESCRIPTION OF SYMBOLS 1 Atomization tank 2 Liquid 3 Ultrasonic vibrator 4 Elastic member 7 Thickness direction vibration oscillation circuit 8 Radial direction vibration oscillation circuit 9 Switching control part

Claims (1)

霧化する液体を入れた霧化槽と、該霧化槽の底部に装着した超音波振動子と、該超音波振動子に接続された厚み方向の振動を発生する厚み振動発振回路及び径方向の振動を発生する径方向振動発振回路と、該厚み振動発振回路及び径方向振動発振回路とを交互に駆動する切り替え制御部とからなり、常時前記厚み方向振動発振回路を駆動して前記液体を霧化し、予め決められた期間毎に前記径方向振動発振回路を駆動して、前記超音波振動子の前記液体と接触する面に付着する泡を径方向振動で除去するようにすることを特徴とする超音波霧化装置。   An atomization tank containing a liquid to be atomized, an ultrasonic vibrator attached to the bottom of the atomization tank, a thickness vibration oscillation circuit that generates vibration in a thickness direction connected to the ultrasonic vibrator, and a radial direction And a switching control unit that alternately drives the thickness vibration oscillating circuit and the radial vibration oscillating circuit. Atomizing and driving the radial vibration oscillation circuit every predetermined period to remove bubbles adhering to the surface of the ultrasonic vibrator that contacts the liquid by radial vibration. An ultrasonic atomizer.
JP2006316688A 2006-11-24 2006-11-24 Ultrasonic atomizer Expired - Fee Related JP4961607B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105457821A (en) * 2014-09-05 2016-04-06 台达电子工业股份有限公司 Atomizer and control method suitable for same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5444921B2 (en) * 2009-07-31 2014-03-19 カシオ計算機株式会社 Discharge nozzle, discharge device, and bubble removal method
US20230302482A1 (en) * 2020-08-05 2023-09-28 Shin-Etsu Chemical Co., Ltd. Film-forming atomizer, film-forming apparatus, and film-forming method
CN113304942A (en) * 2021-05-31 2021-08-27 广东奥迪威传感科技股份有限公司 Atomization amount constant device and atomization amount constant method

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JPS6072664A (en) * 1983-09-27 1985-04-24 Pioneer Electronic Corp Soldering device for printed circuit board
JPH0994544A (en) * 1995-09-29 1997-04-08 Shibaura Eng Works Co Ltd Ultrasonic cleaning device
JP4025055B2 (en) * 2001-11-05 2007-12-19 独立行政法人理化学研究所 Immobilization device
JP2003326226A (en) * 2002-05-08 2003-11-18 Seratekku:Kk Ultrasonic vibrator and ultrasonic cleaner using the same
JP2004148179A (en) * 2002-10-30 2004-05-27 Honda Electronic Co Ltd Ultrasonic washing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105457821A (en) * 2014-09-05 2016-04-06 台达电子工业股份有限公司 Atomizer and control method suitable for same
CN105457821B (en) * 2014-09-05 2017-12-05 台达电子工业股份有限公司 Atomizer and its applicable control method

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