US3700937A - Submersible ultrasonic transducer assembly - Google Patents

Submersible ultrasonic transducer assembly Download PDF

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Publication number
US3700937A
US3700937A US158959A US3700937DA US3700937A US 3700937 A US3700937 A US 3700937A US 158959 A US158959 A US 158959A US 3700937D A US3700937D A US 3700937DA US 3700937 A US3700937 A US 3700937A
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United States
Prior art keywords
enclosure
liquid
tubings
set forth
tank
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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.)
Expired - Lifetime
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US158959A
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English (en)
Inventor
Herman A Rissolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Branson Ultrasonics Corp
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Branson Ultrasonics Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • 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

Definitions

  • An ultrasonic processing apparatus includes an ultrasonic transducer assembly comprising a submersible enclosure made of material having a low thermal conductivity. Electroacoustic transducers are coupled to an interior surface of the enclosure which is filled with a heatconductive liquid. The interior of the enclosure is traversed by tubes which establish heat transfer between the interior of the enclosure and the liquid atthe outside of the enclosure and in which the assembly is immersed.
  • This invention refers to ultrasonic transducer assemblies and more particularly to those of the submersible type used for ultrasonic cleaning and ultrasonic processing.
  • ultrasonic energy applied to a liquid for enhancing cleaning, degreasing, plating, etching, and similar processes is well known in the art.
  • a stainless steel tank is fitted with one or more ultrasonic transducer elements which are bonded to an exterior surface of the tank.
  • the transducers Upon being energized with electrical energy the transducers provide ultrasonic energy to the processing liquid confined in the tank.
  • This arrangement is shown, for instance, in Ultrasonic Engineering (book) by Julian R. Fredrick, John Wiley & Sons, Inc., New York, N. Y. (l965) pages 130 to 138.
  • the ultrasonic transducers may be either of the magnetostrictive type or of the piezoelectric type.
  • the present invention concerns a submersible transducer assembly wherein the transducer element or elements are confined within a liquid-tight enclosure made of material having a relatively low thermal conductivity.
  • the removal of heat from the bond between the transducer and the enclosure surface forms themajor object of this invention and, as disclosedhereinafter, a heat exchange arrangement is shown which has proven to be successful and reliable over many hours of service.
  • One of the principal objects of this invention is, therefore, the provision of a novel submersible ultrasonic transducer assembly, the enclosure of the assembly being made of material having a substantially low thermal conductivity, such as polymeric plastic material.
  • FIG. 1 is an elevational view, partially in section, of an ultrasonic processing apparatus which includes submersible transducer assemblies;
  • FIG. 2 is a perspective view of a submersible transducer assembly constructed in accordance with the present invention
  • FIG. 3 is an elevational sectional view through the transducer assembly per FIG. 2, and
  • FIG. 4 is a detailed view showing the attachment of the ultrasonic transducer elements.
  • a tank 10 made, for instance, of neutral colored polypropylene or other suitable plastic material, is filled with a suitable liquid 12, such as an etchant.
  • a suitable liquid 12 such as an etchant.
  • Two submersible transducer assemblies 14 and 16 are suspended and immersed within the liquid 12 by means of a stationary beam 18, inert wires 20, and ears 22 which form a part of the submersible transducer assembly enclosure.
  • Each transducer assembly is connected by a respective cable 24 and 24' to a suitable electrical high frequency generator 26 and 26'.
  • the transducer assembly 16 comprises essentially a rectangular housing 17, made typically of polypropylene plastic material. Mounted to the inside surface of one wall 17A are a plurality of ultrasonic transducers 30 which produce the ultrasonic energy which is then transmitted through the wall of the enclosure 17 to the liquid 12. As shown, each transducer element includes piezoelectric disk means for converting the applied electrical high frequency energy to mechanical vibration and each of the transducers may be constructed as has been disclosed in detail in US. Pat. No. 3,066,232, issued to Normal G. Branson dated Nov. 27, 1962, entitled Ultrasonic Transducer. It will be apparent that other transducer assemblies may be used including those making use of the magnetostrictive effect.
  • each transducer element 30 is bonded to a metallic plate 32 by means of a thin layer of epoxy resin 34 and the plate 32, in turn, is bonded to the inside surface of the plastic wall 17A by means of an epoxy layer 36.
  • the plate 32 in a typical case, is made of aluminum in order to act as a heat sink which conducts heat away from the bonded areas.
  • the assembly is provided with a plurality of vertical conduits or tubings 40 which traverse the interior of the enclosure 17 and which act as heat exchange tubings as will be more clearly apparent from the description below.
  • the tubings typically, are onehalf inch polypropylene round tubings, one-sixteenth inch wall thickness with their ends sealed liquid-tight to the top and bottom surfaces of the enclosure. When immersed in the liquid 12, the tubings are oriented substantially in a vertical direction.
  • the inside of the submersible assemblies 14 and 16 is filled with a suitable insulating and heat conducting medium, such as insulating oil 42, which conducts the heat away from the heat sink 32 and distributes such heat over a larger area.
  • the tubings 40 when immersed in the treating liquid 12 provide for the natural flow of the liquid 12 through the tubings 40 as is indicated by the arrows 44.
  • a heat exchange takes place, that is, the heat from the plate 32 conducted via the heat transmitting medium (oil) to the outside of the tubings 40 is transferred to the liquid 12 flowing at the inside of tubings 40.
  • the upward flow of the liquid 12 through the tubings 40 is a natural occurrence and is well understood.
  • the treating liquid 12 is used to cool the heat generated at the inside of the submersible assembly 16.
  • a submersible transducer assembly having dimensions 18 /2 by 8% by 6 inch is provided with twelve transducer elements and with 22 heat exchange tubings.
  • a fill pipe 46 with cap 48 is used to fill the enclosure 17 with the suitable cooling medium, such medium being a liquid or a solid material, but suitably being an insulating, heat conducting transformer type oil.
  • a further pipe 50 serves as a shield for the electrical cable and applying the electrical energy to the transducer elements 30.
  • the tubings 40 must remain substantially in a vertical position and that the quantity thereof must be selected to adequately cool the heat generated within the enclosure. In a typical case, with the dimensions described above satisfactory performance was experienced when for an extended period of time the liquid 12 was maintained in the temperature range from 150 to 200 F Additionally, it will be understood that the submersible enclosure not only must be liquid-tight, but as indicated heretofore, the tubings 40 must be sealed liquid-tight to the end surface of the submersible enclosure. Thermoplastic material of the same kind for both the enclosure and the tubings appears to provide maximum assurance for a reliable weld or fusion joint. Standard welding techniques for thermoplastic material are used to provide such a joint. It will be apparent, moreover, that instead of round tubings, rectangular or square cross-sectional tubes can be used without deviating from the principle of the invention.
  • tubings 40 have a wall thickness which is less than that of the enclosures M and 16.
  • the enclosures must be made of relatively heavy wall thickness, typically one-fourth inch. Heat transfer through a plastic wall of this thickness is difficult to achieve.
  • relatively thin-walled tubings 40 heat is more readily transferred from the interior of the enclosure to the exterior and since these tubings do not serve for structural purposes, their wall thickness can be thin.
  • An ultrasonic treatment apparatus comprising:
  • c-3 a plurality of electroacoustic transducers, each adapted to receive electrical energy and transmit sonic energy via a frontal surface thereof;
  • a heat conductive medium associated with said means coupling said frontal surfaces to said interior surface for conducting heat away from the area between a respective frontal surface and said enclosure surface;
  • a plurality of tubings traversing said enclosure in a generally vertical direction, the outer surface of said tubings being sealed in liquid-tight relation to the end surfaces of said enclosure, and the interior of said tubings being in contact with said liquid disposed in said tank;
  • An ultrasonic treatment apparatus comprising:
  • a submersible transducer assembly adapted to be immersed in liquid contained in said tank, said assembly comprising:
  • b-3 a plurality of electroacoustic transducers, each adapted to receive electrical energy and transmit sonic energy via a frontal surface thereof;
  • b-6 a plurality of tubings traversing said enclosure in a generally vertical direction, the outer surface of said tubings being sealed in liquid-tight relation to the end surfaces of said enclosure, and the interior of said tubings adapted to be in contact with liquid contained in said tank;
  • An ultrasonic treatment apparatus which includes a transducer assembly adapted to be immersed in a liquid provided for treating a workpiece comprismg:
  • liquid-tight enclosure made of material having a relatively low thermal conductivity
  • each such transducer adapted to receive high frequency electrical energy and transmit ultrasonic energy via a frontal surface thereof;
  • each of said transducers means coupling each of said transducers with its respective frontal surface in sonic energy transmitting relation to an interior surface of said enclosure;
  • tubings traversing said enclosure, the outer surface of said tubings being in contact with said heat conducting medium filling said enclosure and being sealed in liquid-tight relation to the end surfaces of said enclosure, and the interior surface of said tubings being adapted to be in contact with the 1 id in which aid enclosure 's immersed a d 'provi i ng a conduit through which such liqu id flows when said transducers are operated.
  • An ultrasonic treatment apparatus as set forth in claim 10, said enclosure being made of polymeric plastic material.
  • thermoelectric apparatus as set forth in claim 10, said heat conducting medium being an electrically insulating liquid.
  • An ultrasonic apparatus as set forth in claim 10, and means disposed on said enclosure for supporting said enclosure immersed in the liquid so that said tubings are disposed in a substantially vertical direction.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US158959A 1971-07-01 1971-07-01 Submersible ultrasonic transducer assembly Expired - Lifetime US3700937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15895971A 1971-07-01 1971-07-01

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US3700937A true US3700937A (en) 1972-10-24

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US158959A Expired - Lifetime US3700937A (en) 1971-07-01 1971-07-01 Submersible ultrasonic transducer assembly

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US (1) US3700937A (enrdf_load_stackoverflow)
CA (1) CA933278A (enrdf_load_stackoverflow)
DE (1) DE2217395A1 (enrdf_load_stackoverflow)
FR (1) FR2144281A5 (enrdf_load_stackoverflow)
GB (1) GB1376483A (enrdf_load_stackoverflow)
IT (1) IT958464B (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764116A (en) * 1972-02-28 1973-10-09 Branson Instr Ultrasonic treatment apparatus
US3889930A (en) * 1973-02-15 1975-06-17 Rhone Progil Apparatus for elimination of surface water from articles
US4011472A (en) * 1975-05-13 1977-03-08 Becton, Dickinson Electronics Company Acoustic emission transducer
US4126547A (en) * 1976-12-07 1978-11-21 Arthur Kuris Ultrasonic oil spill removal
US4183011A (en) * 1977-12-22 1980-01-08 Fred M. Dellorfano, Jr. Ultrasonic cleaning systems
US4222868A (en) * 1976-12-07 1980-09-16 Arthur Kuris Ultrasonic oil spill removal
US4345214A (en) * 1980-04-23 1982-08-17 Rca Corporation Variable emitter degeneration gain-controlled amplifier
US4553059A (en) * 1983-11-10 1985-11-12 Nippon Soken, Inc. Piezoelectric actuator and a piezoelectric pump injector incorporating the same
US4728368A (en) * 1986-04-25 1988-03-01 Pedziwiatr Edward A Ultrasonic cleaning in liquid purification systems
US5037208A (en) * 1989-04-06 1991-08-06 Branson Ultrasonics Corporation Immersible transducer assembly
US5225734A (en) * 1990-03-01 1993-07-06 Canon Kabushiki Kaisha Vibration wave driven motor
US5365960A (en) * 1993-04-05 1994-11-22 Verteq, Inc. Megasonic transducer assembly
US5534076A (en) * 1994-10-03 1996-07-09 Verteg, Inc. Megasonic cleaning system
US6039059A (en) * 1996-09-30 2000-03-21 Verteq, Inc. Wafer cleaning system
RU2167499C2 (ru) * 1999-06-01 2001-05-20 Государственное унитарное предприятие "Центральный научно-исследовательский институт "Морфизприбор" Линейный модуль гидроакустической антенны
RU2366104C1 (ru) * 2007-12-04 2009-08-27 Открытое акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" Антенный модуль с цифровым выходом
US20090241985A1 (en) * 2008-01-14 2009-10-01 Gross David J High power density ultrasonic fuel cleaning with planar transducers
US20110242944A1 (en) * 2010-04-01 2011-10-06 Goodson J Michael Unrestricted Mounting of Ultrasonic Transducers
CN104588364A (zh) * 2015-02-06 2015-05-06 徐存然 一种首饰清洗机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK150679B (da) * 1975-07-04 1987-05-25 Sven Karl Lennart Goof Apparat til fjernelse af materialebelaegninger i det indre af en beholder
SE7704420L (sv) * 1977-04-18 1978-10-19 Nordstjernan Rederi Ab Sett och apparat for rengoring av artiklar medelst ultraljud
CN105944997A (zh) * 2016-06-06 2016-09-21 江苏大亿智能科技有限公司 悬浮式高频传导清洗装置

Citations (9)

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Publication number Priority date Publication date Assignee Title
US25119A (en) * 1859-08-16 Improvement in cotton-seed planters
US2257997A (en) * 1940-11-27 1941-10-07 American Cyanamid Co Breaking petroleum emulsions
US2815193A (en) * 1954-01-25 1957-12-03 Bendix Aviat Corp Ultrasonic cleaning system
US2826396A (en) * 1955-02-01 1958-03-11 Telephonics Corp Vibration producing apparatus
US2855526A (en) * 1955-10-24 1958-10-07 Aeroprojects Inc Apparatus for generating ultrasonic energy of high intensity
US2941908A (en) * 1955-08-01 1960-06-21 Bendix Aviat Corp Ultrasonic cleaning method and apparatus
US3351539A (en) * 1965-04-06 1967-11-07 Branson Instr Sonic agitating method and apparatus
US3405916A (en) * 1967-04-11 1968-10-15 Branson Instr Ultrasonic treatment apparatus
US3464672A (en) * 1966-10-26 1969-09-02 Dynamics Corp America Sonic processing transducer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25119A (en) * 1859-08-16 Improvement in cotton-seed planters
US2257997A (en) * 1940-11-27 1941-10-07 American Cyanamid Co Breaking petroleum emulsions
US2815193A (en) * 1954-01-25 1957-12-03 Bendix Aviat Corp Ultrasonic cleaning system
US2826396A (en) * 1955-02-01 1958-03-11 Telephonics Corp Vibration producing apparatus
US2941908A (en) * 1955-08-01 1960-06-21 Bendix Aviat Corp Ultrasonic cleaning method and apparatus
US2855526A (en) * 1955-10-24 1958-10-07 Aeroprojects Inc Apparatus for generating ultrasonic energy of high intensity
US3351539A (en) * 1965-04-06 1967-11-07 Branson Instr Sonic agitating method and apparatus
US3464672A (en) * 1966-10-26 1969-09-02 Dynamics Corp America Sonic processing transducer
US3405916A (en) * 1967-04-11 1968-10-15 Branson Instr Ultrasonic treatment apparatus

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764116A (en) * 1972-02-28 1973-10-09 Branson Instr Ultrasonic treatment apparatus
US3889930A (en) * 1973-02-15 1975-06-17 Rhone Progil Apparatus for elimination of surface water from articles
US4011472A (en) * 1975-05-13 1977-03-08 Becton, Dickinson Electronics Company Acoustic emission transducer
US4126547A (en) * 1976-12-07 1978-11-21 Arthur Kuris Ultrasonic oil spill removal
US4222868A (en) * 1976-12-07 1980-09-16 Arthur Kuris Ultrasonic oil spill removal
US4183011A (en) * 1977-12-22 1980-01-08 Fred M. Dellorfano, Jr. Ultrasonic cleaning systems
US4345214A (en) * 1980-04-23 1982-08-17 Rca Corporation Variable emitter degeneration gain-controlled amplifier
US4553059A (en) * 1983-11-10 1985-11-12 Nippon Soken, Inc. Piezoelectric actuator and a piezoelectric pump injector incorporating the same
US4728368A (en) * 1986-04-25 1988-03-01 Pedziwiatr Edward A Ultrasonic cleaning in liquid purification systems
US5037208A (en) * 1989-04-06 1991-08-06 Branson Ultrasonics Corporation Immersible transducer assembly
US5225734A (en) * 1990-03-01 1993-07-06 Canon Kabushiki Kaisha Vibration wave driven motor
US5365960A (en) * 1993-04-05 1994-11-22 Verteq, Inc. Megasonic transducer assembly
US5534076A (en) * 1994-10-03 1996-07-09 Verteg, Inc. Megasonic cleaning system
US6295999B1 (en) 1996-09-30 2001-10-02 Verteq, Inc. Wafer cleaning method
US7268469B2 (en) 1996-09-30 2007-09-11 Akrion Technologies, Inc. Transducer assembly for megasonic processing of an article and apparatus utilizing the same
US8771427B2 (en) 1996-09-30 2014-07-08 Akrion Systems, Llc Method of manufacturing integrated circuit devices
US6039059A (en) * 1996-09-30 2000-03-21 Verteq, Inc. Wafer cleaning system
US6463938B2 (en) 1996-09-30 2002-10-15 Verteq, Inc. Wafer cleaning method
US6681782B2 (en) 1996-09-30 2004-01-27 Verteq, Inc. Wafer cleaning
US6684891B2 (en) 1996-09-30 2004-02-03 Verteq, Inc. Wafer cleaning
US20040206371A1 (en) * 1996-09-30 2004-10-21 Bran Mario E. Wafer cleaning
US20060180186A1 (en) * 1996-09-30 2006-08-17 Bran Mario E Transducer assembly for megasonic processing of an article
US7117876B2 (en) 1996-09-30 2006-10-10 Akrion Technologies, Inc. Method of cleaning a side of a thin flat substrate by applying sonic energy to the opposite side of the substrate
US7211932B2 (en) 1996-09-30 2007-05-01 Akrion Technologies, Inc. Apparatus for megasonic processing of an article
US6140744A (en) * 1996-09-30 2000-10-31 Verteq, Inc. Wafer cleaning system
US7518288B2 (en) 1996-09-30 2009-04-14 Akrion Technologies, Inc. System for megasonic processing of an article
US8257505B2 (en) 1996-09-30 2012-09-04 Akrion Systems, Llc Method for megasonic processing of an article
RU2167499C2 (ru) * 1999-06-01 2001-05-20 Государственное унитарное предприятие "Центральный научно-исследовательский институт "Морфизприбор" Линейный модуль гидроакустической антенны
RU2366104C1 (ru) * 2007-12-04 2009-08-27 Открытое акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" Антенный модуль с цифровым выходом
US20090241985A1 (en) * 2008-01-14 2009-10-01 Gross David J High power density ultrasonic fuel cleaning with planar transducers
US8372206B2 (en) * 2008-01-14 2013-02-12 Dominion Engineering, Inc. High power density ultrasonic fuel cleaning with planar transducers
US20110242944A1 (en) * 2010-04-01 2011-10-06 Goodson J Michael Unrestricted Mounting of Ultrasonic Transducers
US9159311B2 (en) * 2010-04-01 2015-10-13 J. Michael Goodson Unrestricted mounting of ultrasonic transducers
CN104588364A (zh) * 2015-02-06 2015-05-06 徐存然 一种首饰清洗机

Also Published As

Publication number Publication date
IT958464B (it) 1973-10-20
CA933278A (en) 1973-09-04
FR2144281A5 (enrdf_load_stackoverflow) 1973-02-09
GB1376483A (en) 1974-12-04
DE2217395A1 (de) 1973-01-18

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