JP6921082B2 - 基材上での1以上の液滴の滑りを増大させる方法 - Google Patents
基材上での1以上の液滴の滑りを増大させる方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
- B06B1/067—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
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- B08B17/02—Preventing deposition of fouling or of dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
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- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
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- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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Description
基材5は、超音波表面波10を伝播させることができる任意の材料で作ることができる。好ましくは、弾性率0.1MPa超、例えば10MPa超、さらには100MPa超、さらには1000MPa超、さらには10000MPa超の材料で作ることができる。このような弾性率を有する材料は、超音波表面波の伝播に特に適した剛性を有する。
・車両の窓ガラス、特に自動車のフロントガラス、サイドガラス又はリアウィンドウ、
・建物の窓ガラス、
・眼鏡レンズ、フィールドスコープ、望遠鏡、顕微鏡、カメラレンズ、双眼鏡、バックミラーから選択される光学デバイスのレンズ。
好ましい実施形態では、基材の表面は複数の液滴で少なくとも部分的に覆われる。
超音波表面波の基本周波数及び振幅は、好ましくは、基材及び液体の特性の関数として決定される。
nは振動モードの次数を表し、例えば四重極振動モードの場合には2に等しく、
σはN.m−1単位で表される表面張力であり、
ρはkg.m−3単位で表される液体の密度であり、
Rは液滴の曲率半径であって、その体積及び接触角に依存し、m−3単位で表される。
外力は、固有慣性毛管モードで振動する液滴の滑りを促進することができる。
Claims (17)
- 基材(5)上での1以上の液滴(15)の滑りを促進する方法であって、液滴を慣性毛管固有振動モードで変形させるのに十分な振幅の超音波表面波(10)を基材に発生させて基材への液滴の付着力を低減させて、外力の作用下での液滴の移動を促進し、該超音波表面波の振幅が、該超音波表面波の伝播方向の外力の非存在下で液滴の移動を起こすまでの液滴の対称的変形を生じるには不十分である、方法。
- 液滴の振動の振幅と静止時の液滴のサイズとの比が、1.4以下となるように、超音波表面波の基本周波数及び振幅が調整される、請求項1に記載の方法。
- 超音波表面波の基本周波数が1MHz〜100MHzの間である、請求項1又は請求項2に記載の方法。
- 超音波表面波の基本周波数が20Hz〜10kHzの変調周波数で変調される、請求項1乃至請求項3のいずれか一項に記載の方法。
- 前記表面波の基本周波数が、液滴の対称慣性毛管固有振動モードの固有周波数によって変調される、請求項4に記載の方法。
- 前記表面波がレイリー波又はラム波である、請求項1乃至請求項5のいずれか一項に記載の方法。
- 液滴が、5mm未満のサイズ(Φ)を有する、請求項1乃至請求項6のいずれか一項に記載の方法。
- 液滴の慣性毛管固有振動モードの固有振動数が20Hz〜10kHzである、請求項1乃至請求項7のいずれか一項に記載の方法。
- 基材が、0.1MPa超の弾性率を有する材料からなる、請求項1乃至請求項8のいずれか一項に記載の方法。
- 基材が、圧電物質、ポリマー、ガラス、金属及びセラミックから選択された材料からなる、請求項1乃至請求項9のいずれか一項に記載の方法。
- 前記超音波表面波が、基材に接続されたトランスデューサ(20;20a;20b)によって発生される、請求項1乃至請求項10のいずれか一項に記載の方法。
- トランスデューサが、基材と直接接触して或いは基材上に配置された中間層(35)と接触して配置された互いに噛み合う櫛歯(30a;30b)を備え、該中間層が、圧電物質からなる、請求項11に記載の方法。
- 外力が、重力、慣性力、反作用力、磁力、電気的力及び摩擦力から選択され、又は重力であり、又は移動する物体と液滴との接触に起因するものである、請求項1乃至請求項12のいずれか1項に記載の方法。
- 液滴を形成する液体が、水、生物体液、基材洗浄用の液体、化学溶液、原動機燃料及びこれらの混合物から選択される、請求項1乃至請求項13のいずれか一項に記載の方法。
- 基材が光学的に透明な材料からなる、請求項1乃至請求項14のいずれか一項に記載の方法。
- 基材が、車両の窓ガラス、建物の窓ガラス、光学デバイスのレンズ、ラブオンチップ基板、燃焼機関の内壁、タービンの要素、電気ケーブル、航空機の構造体の要素、医療用インプラントの要素、熱交換器の要素、配管設備の要素、換気システムの要素、油井から油を抽出するためのシステムの要素、食品貯蔵用の要素、液体の凝縮に曝される壁から選択される、請求項1乃至請求項15のいずれか一項に記載の方法。
- 基材の表面温度が100℃超である、請求項1乃至請求項16のいずれか一項に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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FR1562067 | 2015-12-09 | ||
FR1562067A FR3044937B1 (fr) | 2015-12-09 | 2015-12-09 | Procede pour favoriser le glissement d'au moins une goutte sur un support |
PCT/EP2016/079902 WO2017097769A1 (fr) | 2015-12-09 | 2016-12-06 | Procede pour favoriser le glissement d'au moins une goutte sur un support |
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JP2019508301A JP2019508301A (ja) | 2019-03-28 |
JP6921082B2 true JP6921082B2 (ja) | 2021-08-18 |
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US (1) | US11090698B2 (ja) |
EP (1) | EP3386653B1 (ja) |
JP (1) | JP6921082B2 (ja) |
CN (1) | CN109153045B (ja) |
CA (1) | CA3007721A1 (ja) |
ES (1) | ES2780923T3 (ja) |
FR (1) | FR3044937B1 (ja) |
WO (1) | WO2017097769A1 (ja) |
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JP2021037451A (ja) * | 2019-09-02 | 2021-03-11 | 株式会社エンプラス | 液滴除去装置及び液滴除去方法 |
FR3100998B1 (fr) * | 2019-09-25 | 2022-06-03 | Lille Ecole Centrale | Dispositif pour nettoyer un support recouvert d’un liquide |
FR3100999B1 (fr) * | 2019-09-25 | 2022-07-15 | Lille Ecole Centrale | Dispositif électroacoustique |
FR3101000B1 (fr) | 2019-09-25 | 2022-07-15 | Lille Ecole Centrale | Procédé de fusion d’un corps au moyen d’une onde ultrasonore |
DE102019006919B3 (de) * | 2019-10-06 | 2020-10-29 | ultraTEC Anlagentechnik Münz GmbH | Verfahren und Vorrichtung zum Ultraschallentgraten eines Gegenstandes |
KR102343444B1 (ko) * | 2019-11-13 | 2021-12-27 | 주식회사 마이크로시스템 | 전기적 진동과 기계적 진동을 이용하는 자가 세정 장치 및 방법 |
FR3107685B1 (fr) * | 2020-02-28 | 2023-06-30 | Valeo Systemes Dessuyage | Dispositif de nettoyage pour système optique |
KR102367531B1 (ko) * | 2020-04-16 | 2022-02-24 | 명지대학교 산학협력단 | 전기저항열 및 기계적 진동을 이용하여 액적을 제거하는 자가 세정 장치 및 방법 |
FR3119866A1 (fr) * | 2021-02-16 | 2022-08-19 | Valeo Systemes Thermiques | Boucle de refroidissement, notamment pour un véhicule automobile, et capteur embarqué sur ladite boucle |
FR3121370A1 (fr) * | 2021-03-31 | 2022-10-07 | Université de Lille | Dispositif de nettoyage d’une surface optique |
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JPH0647366B2 (ja) * | 1986-04-09 | 1994-06-22 | 日産自動車株式会社 | 水滴除去装置 |
JPH08140898A (ja) * | 1991-05-29 | 1996-06-04 | Y & Y:Kk | 弾性表面波ワイパー |
JP2001347218A (ja) * | 2000-06-08 | 2001-12-18 | Naoyuki Aoyama | 微少液滴の濡れ性制御方法およびこれに用いる装置 |
KR100350363B1 (ko) * | 2000-11-04 | 2002-08-28 | 한국과학기술연구원 | 응축 및 비등 촉진 장치 |
CN101219658B (zh) * | 2008-01-25 | 2010-08-18 | 刘建芳 | 压电驱动自动除雨滴汽车后视镜 |
US9279435B2 (en) * | 2008-02-25 | 2016-03-08 | University of Washington through its Center for Communication | Vibration-driven droplet transport devices |
GB201100290D0 (en) * | 2011-01-10 | 2011-02-23 | Trevett David R M | Clearing precipitation from windaows |
FR2977668B1 (fr) * | 2011-07-04 | 2013-07-12 | Univ Paris Curie | Dispositif piezoelectrique |
JP5948781B2 (ja) * | 2011-10-05 | 2016-07-06 | アイシン精機株式会社 | 水滴除去機能付カメラ |
CN102442273A (zh) * | 2011-11-16 | 2012-05-09 | 龚文资 | 一种利用超声波去除汽车后视镜雨水的控制电路 |
GB2518136B (en) * | 2013-07-22 | 2016-09-14 | Echovista Gmbh | Ultrasonically clearing precipitation |
JP2015027671A (ja) * | 2014-09-04 | 2015-02-12 | キヤノン株式会社 | 振動装置、該振動装置を有する駆動装置、塵埃除去装置及び光学機器 |
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2015
- 2015-12-09 FR FR1562067A patent/FR3044937B1/fr active Active
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2016
- 2016-12-06 WO PCT/EP2016/079902 patent/WO2017097769A1/fr active Application Filing
- 2016-12-06 ES ES16808608T patent/ES2780923T3/es active Active
- 2016-12-06 EP EP16808608.0A patent/EP3386653B1/fr active Active
- 2016-12-06 JP JP2018530762A patent/JP6921082B2/ja active Active
- 2016-12-06 CA CA3007721A patent/CA3007721A1/fr not_active Abandoned
- 2016-12-06 CN CN201680081432.7A patent/CN109153045B/zh active Active
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Publication number | Publication date |
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CN109153045B (zh) | 2022-03-18 |
WO2017097769A1 (fr) | 2017-06-15 |
FR3044937A1 (fr) | 2017-06-16 |
US11090698B2 (en) | 2021-08-17 |
CN109153045A (zh) | 2019-01-04 |
CA3007721A1 (fr) | 2017-06-15 |
ES2780923T3 (es) | 2020-08-27 |
FR3044937B1 (fr) | 2018-01-12 |
US20180369880A1 (en) | 2018-12-27 |
JP2019508301A (ja) | 2019-03-28 |
EP3386653A1 (fr) | 2018-10-17 |
EP3386653B1 (fr) | 2020-01-08 |
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