DE2745010A1 - PIEZOELECTRIC ULTRASONIC POWER CONVERTER - Google Patents
PIEZOELECTRIC ULTRASONIC POWER CONVERTERInfo
- Publication number
- DE2745010A1 DE2745010A1 DE19772745010 DE2745010A DE2745010A1 DE 2745010 A1 DE2745010 A1 DE 2745010A1 DE 19772745010 DE19772745010 DE 19772745010 DE 2745010 A DE2745010 A DE 2745010A DE 2745010 A1 DE2745010 A1 DE 2745010A1
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- radiator
- reflector
- piezoelectric
- power
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- 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
- B06B1/0607—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 multiple elements
- B06B1/0611—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 multiple elements in a pile
- B06B1/0618—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 multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
Description
Piezoelektrischer Ultraschal I-LeistungswandlerPiezoelectric ultrasonic I power converter
Die Erfindung betrifft einen piezoelektrisclien Ultraschall-Leistungswandler, vor allem für hohe Ultraschalleistung vom Typ Langevin-3andwich, der für Anwendung größerer Leistungen in der Technologie bestimmt ist, wie Ultraschallschweißen und -bearbeiten und/oder Homogenisieren, Bestrahlen von Flüssigkeiten u. dgl.The invention relates to a piezoelectric Ultrasonic power converter, especially for high ultrasonic power of the Langevin-3andwich type, which is used for application greater achievements in technology is intended, such as ultrasonic welding and machining and / or Homogenization, irradiation of liquids and the like.
Der bekannte Langevin-Sandwich-Ultraschallwandler besteht aus wenigstens zwei aktiven piezoelektrischen keramischen Platten und einer zwischen ihnen gelagerten metallischen Plattenelektrode. Alle diese Teile werdenThe known Langevin sandwich ultrasonic transducer consists of at least two active piezoelectric ones ceramic plates and a metallic plate electrode mounted between them. All of these parts will
233-(S9100)-SdSl233- (S9100) -SdSl
809819/ Π 6Π6809819 / Π 6Π6
durch passive Metallendteile zusammengehalten - einem Reflektor und einem Strahler. Die Verbindung und das Zusammenpressen aller dieser Wandlerteile erfolgt durch eine Zentralschraube, eine Umfangs-Verbindungsmuffe oder durch mehrere Umfangsschrauben. Dieser Ultraschallwandler ermöglicht, die elektrische Energie in eine mechanische eine Ultraschallenergie hoher Intensität mit einem elektroakustischen Wirkungsgrad von 75 bis 95 % umzuwandeln. Die Rest-Energie verwandelt sich in Wärme, welche meist in den piezoelektrischen keramischen Platten erzeugt wird. Da die piezoelektrischen Platten nicht bei hohen Temperaturen arbeiten dürfen, muß die Wärme durch Zwangskühlung abgeführt werden.held together by passive metal end pieces - a reflector and a radiator. The connection and the pressing together of all these converter parts is carried out by a central screw, a circumferential connecting sleeve or several circumferential screws. This ultrasonic transducer enables the electrical energy to be converted into mechanical ultrasonic energy of high intensity with an electroacoustic efficiency of 75 to 95 % . The remaining energy is converted into heat, which is mostly generated in the piezoelectric ceramic plates. Since the piezoelectric plates must not work at high temperatures, the heat must be dissipated by means of forced cooling.
Bei den bekannten piezoelektrischen Ultraschall-Leistungswandlern in Sandwichausführung haben die piezoelektrischen keramischen Platten die Form von Ringen, was ein Zusammenziehen aller Teile des Wandlers durch eine Zentralschraube in der Achse des Wandlers und ein Kühlen des ganzen äußeren Oberflächenteiles des Wandlers durch einen Luftstrom ermöglicht. Durch mehrere Umfangsschrauben zusammengezogene Wandler werden ähnlich gekühlt. Wandler mit einer Umfangs-Verbindungsmuffe nützen ausschließlich voll flächige piezoelektrische Platten aus, was für besonders hohe Ultraschalleistungen vorteilhaft ist, jedoch deren Kühlen wesentlich verschlechtert.In the known piezoelectric ultrasonic power converters in sandwich design, the piezoelectric Ceramic plates take the form of rings, causing a contraction of all parts of the transducer through one Central screw in the axis of the transducer and a cooling of the entire outer surface part of the transducer allows an air flow. Converters pulled together by several circumferential screws are similarly cooled. Converter with a circumferential connecting sleeve only use full-area piezoelectric plates, which is special high ultrasonic power is advantageous, but its cooling is significantly impaired.
Es ist bereits ein piezoelektrischer Leistungs-Ultraschallwandler bekannt, bei dem die KMhlöffnung in der Achse des Wandlers liegt und sich in eine Reihe von in der zwischen den piezoelektrischen keramischen Platten liegenden Speisemetallplatte radial verlaufende öffnungenIt is already a piezoelectric power ultrasonic transducer known, in which the KMhlloch lies in the axis of the transducer and is in a series of in of the feed metal plate lying between the piezoelectric ceramic plates, radially extending openings
809819/0606809819/0606
27A50 IO27A50 IO
verzweigt. Nachteile dieser Ausführung sind ihre schwierige Herstellung und verhältnismäßig kleine Kühlflächen.branched. Disadvantages of this design are that it is difficult to manufacture and relatively small cooling surfaces.
Aufgabe der Erfindung ist es, unter Vermeidung der Nachteile bekannter Ausführungen einen piezoelektrischen Leistungs-Ultraschallwandler vor allem für hohe Ultraschallleistungen mit erheblich gesteigerter Kühlung zu schaffen.The object of the invention is, while avoiding the disadvantages of known designs, a piezoelectric Power ultrasonic transducers especially for high ultrasonic power to create with significantly increased cooling.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Flansch des Reflektors obere KUhlöffnungen und der Strahler untere Kühlkanäle aufweist, und daß die Metallplatte am Umfang Kühlrippen und die Verbindungsmuffe am Umfang Kühlöffnungen besitzen.This object is achieved according to the invention in that the flange of the reflector has upper cooling openings and the radiator has lower cooling channels, and that the metal plate on the circumference cooling ribs and the connecting sleeve have cooling openings on the circumference.
Bei dem erfindungsgemäßen Leistungs-Ultraschallwandler wird vor allem bei großer Ultraschalleistung eine genügende Kühlung erzielt, die für den richtigen Betrieb des Wandlers erforderlich ist.In the case of the power ultrasonic transducer according to the invention, especially when the ultrasonic power is high, a sufficient Achieved cooling, which is necessary for the correct operation of the converter.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung ausführlich beschrieben. Es zeigen:In the following an embodiment of the invention is described in detail with reference to the drawing. Show it:
Fig. 1 den Wandler im teilweisen Längsschnitt, Fig. 2 die zentrale Metallplatte in Draufsicht und Fig. 3 den Grundriß des Wandlers.1 shows the transducer in partial longitudinal section, FIG. 2 shows the central metal plate in plan view and 3 shows the plan view of the transducer.
Der dargestellte piezoelektrische Ultraschallwandler besonders für hohe Ultraschalleistungen besitzt einen zylindrischen Reflektor 1, der am unteren Ende einen Flansch 2 aufweist. Am Umfang des Flansches 2 sind parallel zur Achse des Reflektors 1 obere Kühlöffnungen 3 verteiltThe illustrated piezoelectric ultrasonic transducer, especially for high ultrasonic powers, has a cylindrical reflector 1, which has a flange 2 at the lower end. On the circumference of the flange 2 are parallel to the axis of the reflector 1 upper cooling openings 3 distributed
8098 19/06068098 19/0606
und ein Außengewinde 4 vorgesehen. Den zweiten Teil des Wandlers bildet ein Strahler 6, dessen oberes Ende erweitert ist und der am Umfang ein unteres Gewinde 7 aufweist. Im erweiterten Ende des Strahlers 6 sind in Längsrichtung am Umfang untere Kühlkanäle 8 ausgeführt. Zwischen dem Reflektor 1 und dem Strahler 6 ist eine von keramischen Platten 11 umgebene Metallplatte 12 gelagert. Die Metallplatte 12 besitzt am Umfang Kühlrippen 13. Der Reflektor 1 und der Strahler 6 sind miteinander durch das Gewinde 4 des Reflektors 1, das untere Gewinde 7 des Strahlers 6 und ein Innengewinde 9 einer Verbindungsmuffe 5 verbunden. Die Oberfläche der Verbindungsmuffe 5 hat die Form eines Sechseckes und jede zweite Fläche dieses Sechsecks besitzt eine radiale öffnung 10 zur KUhlmittelzirkulation. An der oberen Stirnseite des Reflektors 1 ist eine Klemme 16 und an der Metallplatte 12 eine positive Klemme 15 für den elektrischen Strom vorgesehen.and an external thread 4 is provided. The second part of the converter is a radiator 6, the upper end of which is widened and which has a lower thread 7 on the circumference. In the extended end of the Radiator 6 are executed in the longitudinal direction on the circumference of lower cooling channels 8. Between the reflector 1 and A metal plate 12 surrounded by ceramic plates 11 is mounted on the radiator 6. The metal plate 12 has cooling ribs 13 on the circumference. The reflector 1 and the radiator 6 are connected to one another by the thread 4 of the reflector 1, the lower thread 7 of the radiator 6 and an internal thread 9 of a connecting sleeve 5. The surface of the connecting sleeve 5 has the shape of a hexagon and every other surface of this hexagon has a radial opening 10 for coolant circulation. On the upper end of the reflector 1 is a terminal 16 and on the metal plate 12 is a positive terminal 15 intended for electrical power.
Der Strahler hat an der unteren Stirnseite eine öffnung 14 zum Befestigen eines Werkzeuges.The radiator has an opening 14 on the lower face for attaching a tool.
Nach Anschließen des piezoelektrischen Leistungs-Ultraschallwandlers an eine elektrische Stromquelle und nach Beginn eines technischen Vorganges, z. B. Ultraschallschweißen, strömt Kühlluft zwangsweise durch die oberen KUhlöffnungen 3 des Flansches in den Bereich der keramischen Platten 11 und gleichzeitig über die Kühlrippen 13, die radialen öffnungen 10 zum Kühlen der Verbindungsmuffe 5 und durch die unteren Kühlöffnungen 8 des Strahlers 6. Dadurch werden die keramischen Platten 11 genügend gekühlt.After connecting the piezoelectric power ultrasonic transducer to an electrical power source and after the start of a technical process, e.g. B. Ultrasonic welding, cooling air forcibly flows through the upper cooling openings 3 of the flange in the area of the ceramic plates 11 and at the same time via the cooling fins 13, the radial openings 10 for cooling the Connection sleeve 5 and through the lower cooling openings 8 of the radiator 6. This will make the ceramic plates 11 sufficiently cooled.
809819/0606809819/0606
L e e r s e i t eL e r s e i t e
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS705976A CS185526B1 (en) | 1976-11-02 | 1976-11-02 | Capacity ultrasonic piezoelectric converter,especially for big ultrasonic performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2745010A1 true DE2745010A1 (en) | 1978-05-11 |
Family
ID=5419011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772745010 Withdrawn DE2745010A1 (en) | 1976-11-02 | 1977-10-06 | PIEZOELECTRIC ULTRASONIC POWER CONVERTER |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5357787A (en) |
| CH (1) | CH623701A5 (en) |
| CS (1) | CS185526B1 (en) |
| DE (1) | DE2745010A1 (en) |
| FR (1) | FR2369018A1 (en) |
| GB (1) | GB1556792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719746U1 (en) * | 1997-11-07 | 1999-03-18 | Kln Ultraschall Gmbh | Sonotrode for ultrasonic processing machines with holder for exchangeable mounting of processing tools |
| DE19836229C1 (en) * | 1998-08-04 | 2000-03-23 | Hielscher Gmbh | Arrangement for heat dissipation, especially for high-power ultrasonic transducers |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6034433B2 (en) * | 1977-03-07 | 1985-08-08 | 株式会社豊田中央研究所 | ultrasonic transducer |
| GB8612745D0 (en) * | 1986-05-27 | 1986-07-02 | Russel Finex | Vibratory sieving apparatus |
| JPH0626398U (en) * | 1992-07-14 | 1994-04-08 | 精電舎電子工業株式会社 | Ultrasonic transducer |
| JP2002266210A (en) * | 2000-12-27 | 2002-09-18 | Mitsutech Kk | Actuator apparatus in needle selection device for knitting machine |
| FR2948585A1 (en) * | 2009-07-31 | 2011-02-04 | Inst Pierre Vernier | THROUGH SONOTRODE AND ULTRASONIC MACHINE INTEGRATING THE SOUNDRODE |
| CN108838056A (en) * | 2018-07-03 | 2018-11-20 | 广东固特超声股份有限公司 | A kind of multiple activation round tube high power altrasonic transducer |
| DE102019127515A1 (en) * | 2019-10-11 | 2021-04-29 | Kln Ultraschall Ag | Sonotrode and sonotrode arrangement |
| RU200145U1 (en) * | 2020-04-28 | 2020-10-08 | Общество с ограниченной ответственностью "Александра-Плюс" | Ultrasonic transducer with a focusing emitting surface, providing the formation of an intense ultrasonic field in large volumes |
-
1976
- 1976-11-02 CS CS705976A patent/CS185526B1/en unknown
-
1977
- 1977-09-24 JP JP11395977A patent/JPS5357787A/en active Pending
- 1977-09-28 CH CH1187177A patent/CH623701A5/en not_active IP Right Cessation
- 1977-09-30 GB GB4078077A patent/GB1556792A/en not_active Expired
- 1977-10-06 DE DE19772745010 patent/DE2745010A1/en not_active Withdrawn
- 1977-11-02 FR FR7732909A patent/FR2369018A1/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719746U1 (en) * | 1997-11-07 | 1999-03-18 | Kln Ultraschall Gmbh | Sonotrode for ultrasonic processing machines with holder for exchangeable mounting of processing tools |
| DE19836229C1 (en) * | 1998-08-04 | 2000-03-23 | Hielscher Gmbh | Arrangement for heat dissipation, especially for high-power ultrasonic transducers |
| US6481493B1 (en) | 1998-08-04 | 2002-11-19 | Dr. Heilscher Gmbh | Arrangement for heat discharge, particularly for ultrasonic transducers with high performance |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2369018B1 (en) | 1980-06-06 |
| FR2369018A1 (en) | 1978-05-26 |
| JPS5357787A (en) | 1978-05-25 |
| CS185526B1 (en) | 1978-10-31 |
| GB1556792A (en) | 1979-11-28 |
| CH623701A5 (en) | 1981-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102014214209B4 (en) | Cooling device for targeted cooling of electronic and / or electrical components, converters with such a cooling device and electric or hybrid vehicle with such a converter | |
| DE2160302C3 (en) | Cooling box for installation in disc cell stacks | |
| DE2745010A1 (en) | PIEZOELECTRIC ULTRASONIC POWER CONVERTER | |
| DE1639039A1 (en) | Disc-shaped semiconductor device | |
| CH664303A5 (en) | HOLDING DEVICE FOR TARGETS FOR CATHODE SPRAYING. | |
| DE2211774A1 (en) | Ultrasonic transducer | |
| EP0662246A1 (en) | Liquid-coolant cooling element | |
| DE2611749C3 (en) | Semiconductor arrangement with a semiconductor component that can be contacted by pressure via clamping bolts | |
| DE1439909B2 (en) | HOUSING FOR A SEMICONDUCTOR COMPONENT | |
| EP3599677A1 (en) | Slip ring, slip ring unit, electric machine and wind turbine | |
| DE2617776A1 (en) | COOLER FOR A THYRISTOR | |
| DE2415893A1 (en) | COOLING DEVICE | |
| DE2052231A1 (en) | Sealing arrangement, in particular for gas turbine systems | |
| DE2013684A1 (en) | Semiconductor device | |
| DE2830185A1 (en) | ARRANGEMENT FOR CONNECTING PIPES | |
| DE1475806A1 (en) | Lid lock for pressure vessel | |
| DE3311712C2 (en) | ||
| DE102019127203A1 (en) | Cooling system with a serpentine passage | |
| DE2941484C2 (en) | Electric machine with a stator core designed as a slide | |
| AT92783B (en) | Piston cooling for internal combustion engines. | |
| DE29980179U1 (en) | Plate heat exchanger | |
| DE2724428C3 (en) | Device for the production of ozone | |
| DE703547C (en) | Spark gap arrangement, in particular arc converter | |
| DE102004024080A1 (en) | Brush seal for use in e.g. static gas turbine, has interference units, fastenable to stator, concurring with interference recesses such that force is applied on each ring part, where force presses each ring part in stator | |
| DE1910027C3 (en) | Cylinder electrode that conducts electrical current to workpieces with a round cross-section that are continuously heated using the resistance method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |