EP1064645B1 - Ultraschallwandler - Google Patents
Ultraschallwandler Download PDFInfo
- Publication number
- EP1064645B1 EP1064645B1 EP98959707A EP98959707A EP1064645B1 EP 1064645 B1 EP1064645 B1 EP 1064645B1 EP 98959707 A EP98959707 A EP 98959707A EP 98959707 A EP98959707 A EP 98959707A EP 1064645 B1 EP1064645 B1 EP 1064645B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- ultrasonic converter
- converter according
- bowl
- ring
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims 1
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 3
- 229920002323 Silicone foam Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013514 silicone foam Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
Definitions
- the invention is based on an ultrasonic transducer with a pot-like housing with an annular wall and a bottom surface as a membrane, with the On the inside of the bottom surface, a piezo element is applied, which has connection lines connected is.
- An ultrasonic transducer is known from EP 0 075 302 B1, which has a cup-shaped housing having. Such ultrasonic transducers are used, for example, as sensors for Distance measuring devices used.
- EP 477 575 A1 describes an ultrasonic transducer and a method for producing the Ultrasonic transducer is known, in which with the help of different shapes to one Piezoceramic disc a pourable matching material is arranged, which is a pot formed. The piezoceramic disc is contacted by wires that are connected by a poured damping material run and open into a connector. The In one embodiment, damping material forms a ring for holding.
- DE 34 41 684 A1 describes an electroacoustic transducer with an aluminum pot and a piezoceramic disk arranged thereon, which is connected via flexible wires a circuit board is contacted. Is on a housing made of an elastic material arranged a connector that leads out of the housing. There is a on the aluminum pot Ring arranged for holding in the elastic material.
- the object of the present invention is to provide an ultrasonic transducer stable contact for secure mounting.
- the edge facing away from the bottom surface is surrounded by a decoupling ring and that the decoupling ring is designed as a holder for the connecting lines.
- the annular wall of the pot-like housing has a contour that is rises above the outside of the annular wall of the pot-like housing, the decoupling ring on the outside corresponding to this contour Has contour for secure attachment of the ultrasonic transducer to an opening.
- a first advantageous embodiment of the Ultrasonic transducer according to the invention is that the Decoupling ring essentially fills the housing and provided with holes to hold the connecting cables is.
- the Decoupling ring has a central opening at the Edge grooves arranged to hold the connection lines are. It is advantageous if one of them is not Decoupling part of the interior of the Housing including the central opening with a Damping material is filled.
- An advantageous embodiment of the invention Ultrasonic transducer is that the connecting lines are flexible.
- the flexible Connection lines for example formed by strands is still an easy assembly of the Ultrasonic transducer according to the invention on a circuit board possible, the connecting cables through the bracket in the holes arranged in the respective grid dimension fit.
- the connecting lines held in the decoupling ring rigidly formed and with flexible pipe sections with the Piezo element are connected.
- this one Design provided that the decoupling ring except the Holes for holding the connection lines an opening and that the opening and one not of that Decoupling part of the interior of the Housing are filled with a damping material.
- the figures show the exemplary embodiments in one view from the direction of radiation or Receiving direction (a) and a plan view of the Connection side (b) and each as a longitudinal section (c) or (d).
- the illustrated embodiments each contain one, for example made of aluminum, Sensor transducer pot 1, on the bottom of which the piezo element 2 attached, for example glued.
- a decoupling ring 4, 6, 9 made of elastic material, preferably made of silicone, provided the edge of the Converter pot 1 includes.
- a corresponding contour of the transducer pot 1 and on the Outside of the decoupling ring 4, 6, 9 is used for secure attachment by simple Press into a corresponding opening of the body part, not shown.
- connecting strands 3 with the piezo element 2 contacted.
- the decoupling ring 4 comprises a central opening, at the edge of which grooves are provided for holding the connecting strands 3.
- the remaining cavities are filled with a damping material 5, for example with a silicone foam.
- the decoupling ring 6 is designed such that it occupies the entire interior of the sensor pot 1.
- a bore running through the entire decoupling ring 6 is provided in each case.
Description
- Fig. 1
- ein erstes Ausführungsbeispiel in vier Ansichten,
- Fig. 2
- ein zweites Ausführungsbeispiel in vier Ansichten und
- Fig. 3
- ein drittes Ausführungsbeispiel in drei Ansichten.
Claims (10)
- Ultraschallwandler mit einem topfähnlichen Gehäuse (1) mit einer ringförmigen Wandung und einer Bodenfläche als Membran, wobei an der Innenseite der Bodenfläche ein Piezoelement (2) aufgebracht ist, das mit Anschlussleitungen (3, 7, 8) verbunden ist, wobei der von der Bodenfläche abgewandte Rand des topfähnlichen Gehäuses von einem Entkopplungsring (4, 6, 9) umfasst ist, wobei der Entkopplungsring (4, 6, 9) als Halter für die Anschlussleitungen (3, 8) ausgebildet ist, dadurch gekennzeichnet, dass die ringförmige Wandung des topfähnlichen Gehäuses (1) eine Kontur aufweist, die sich über die Außenseite der ringförmigen Wandung des topfähnlichen Gehäuses (1) erhebt, und dass der Entkopplungsring (4, 6, 9) an seiner Außenseite eine dieser Kontur entsprechende Kontur zur sicheren Befestigung des Ultraschallwandlers in einer Öffnung aufweist.
- Ultraschallwandler nach Anspruch 1, dadurch gekennzeichnet, dass das topfähnliche Gehäuse aus Aluminium besteht.
- Ultraschallwandler nach einem der vorherigenAnsprüche, dadurch gekennzeichnet, dass der Entkopplungsring (6) das Gehäuse (1) im wesentlichen ausfüllt und mit Bohrungen zur Halterung der Anschlussleitungen (3) versehen ist.
- Ultraschallwandler nach einem der Ansprüche 1-2, dadurch gekennzeichnet, dass der Entkopplungsring (4) eine zentrale Öffnung aufweist, an deren Rand Nuten zur Halterung der Anschlussleitungen (3) angeordnet sind.
- Ultraschallwandler nach Anspruch 4, dadurch gekennzeichnet, dass ein nicht von dem Entkopplungsring (4) eingenommener Teil des Innenraums des topfähnlichen Gehäuses (1) einschließlich der zentralen Öffnung mit einem Dämpfungsmaterial (5) ausgefüllt ist.
- Ultraschallwandler nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Anschlussleitungen (3) flexibel ausgebildet sind.
- Ultraschallwandler nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die in dem Entkopplungsring (9) gehaltenen Anschlussleitungen (8) starr ausgebildet und über flexible Leitungsstücke (7) mit dem Piezoelement (2) verbunden sind.
- Ultraschallwandler nach Anspruch 7, dadurch gekennzeichnet, dass der Entkopplungsring (9) außer den Bohrungen zur Halterung der Anschlussleitungen (8) eine Öffnung aufweist und dass die Öffnung und ein nicht von dem Entkopplungsring (9) eingenommener Teil des Innenraums des topfförmigen Gehäuses (1) mit einem Dämpfungsmaterial (11) ausgefüllt sind.
- Ultraschallwandler nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die starren Anschlussleitungen (8) außerhalb des topfformigen Gehäuses (1) um 90° abgebogen sind.
- Ultraschallwandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anschlussleitungen (8) an der Oberfläche des Entkopplungsringes (9) von einem, vorzugsweise ringförmig ausgebildeten Steg (10) gehalten werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19744229A DE19744229A1 (de) | 1997-10-07 | 1997-10-07 | Ultraschallwandler |
DE19744229 | 1997-10-07 | ||
PCT/DE1998/002938 WO1999018563A2 (de) | 1997-10-07 | 1998-10-05 | Ultraschallwandler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1064645A2 EP1064645A2 (de) | 2001-01-03 |
EP1064645B1 true EP1064645B1 (de) | 2003-09-24 |
Family
ID=7844817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98959707A Expired - Lifetime EP1064645B1 (de) | 1997-10-07 | 1998-10-05 | Ultraschallwandler |
Country Status (4)
Country | Link |
---|---|
US (1) | US6374676B1 (de) |
EP (1) | EP1064645B1 (de) |
DE (2) | DE19744229A1 (de) |
WO (1) | WO1999018563A2 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19927797C1 (de) * | 1999-06-18 | 2000-12-07 | Fraunhofer Ges Forschung | Ultraschallwandler und Verfahren zu seiner Herstellung |
DE10106477C2 (de) * | 2001-02-13 | 2002-12-19 | Fraunhofer Ges Forschung | Ultraschallwandler mit Gehäuse |
ATE466360T1 (de) | 2003-08-11 | 2010-05-15 | Valeo Schalter & Sensoren Gmbh | Sensor für ein nahbereichserkennungs- bzw. einparkhilfesystem eines fahrzeugs und herstellungsverfahren hierfür |
DE10341422A1 (de) * | 2003-09-09 | 2005-03-31 | Sick Engineering Gmbh | Ultraschallwandleranordnung |
JP4306561B2 (ja) | 2004-08-11 | 2009-08-05 | 株式会社デンソー | 超音波センサ |
DE102005039093A1 (de) * | 2005-08-08 | 2007-02-15 | Valeo Schalter Und Sensoren Gmbh | Ultraschallsensor, Entkopplungsmaterial für einen Ultraschallsensor und Verfahren zur Lackierung eines Ultraschallsensors |
CN101258772B (zh) * | 2005-09-09 | 2012-04-25 | 株式会社村田制作所 | 超声波传感器 |
JP4407767B2 (ja) * | 2006-02-14 | 2010-02-03 | 株式会社村田製作所 | 超音波センサおよびその製造方法 |
WO2007094104A1 (ja) * | 2006-02-14 | 2007-08-23 | Murata Manufacturing Co., Ltd. | 超音波センサ |
DE102006011155A1 (de) | 2006-03-10 | 2007-09-13 | Robert Bosch Gmbh | Ultraschallsensor |
DE102006028212A1 (de) * | 2006-06-14 | 2007-12-20 | Valeo Schalter Und Sensoren Gmbh | Ultraschallsensor |
DE102006040344B4 (de) * | 2006-08-29 | 2022-09-29 | Robert Bosch Gmbh | Haltevorrichtung für einen Ultraschallwandler |
DE102006050037A1 (de) * | 2006-10-24 | 2008-04-30 | Robert Bosch Gmbh | Ultraschallwandler |
DE102007043500A1 (de) * | 2007-09-12 | 2009-03-19 | Valeo Schalter Und Sensoren Gmbh | Einbauanordnung für ein schwingungsempfindliches Bauteil, insbesondere eines Ultraschallwandlers, und Verfahren zum Einbau des Bauteils |
US8129220B2 (en) | 2009-08-24 | 2012-03-06 | Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
DE102009040374A1 (de) * | 2009-09-07 | 2011-03-17 | Valeo Schalter Und Sensoren Gmbh | Ultraschallwandler mit einem Entkopplungsring |
DE102009046972A1 (de) * | 2009-11-23 | 2011-05-26 | Robert Bosch Gmbh | Ultraschallsensor |
JP5522100B2 (ja) * | 2010-05-28 | 2014-06-18 | 株式会社村田製作所 | 超音波センサ |
KR20120136653A (ko) * | 2011-06-09 | 2012-12-20 | 삼성전기주식회사 | 초음파 센서 |
DE102011079646A1 (de) * | 2011-07-22 | 2013-02-07 | Robert Bosch Gmbh | Ultraschallsensorvorrichtung zum Erfassen und/oder Senden von Ultraschall |
US9518850B2 (en) | 2012-09-28 | 2016-12-13 | United Technologies Corporation | Embedded cap probe |
US10072963B1 (en) * | 2014-07-11 | 2018-09-11 | Nick V. Solokhin | Ultrasonic volume-sensing transducer instrument with concave transceiver element |
DE102015216200A1 (de) * | 2015-08-25 | 2017-03-02 | Robert Bosch Gmbh | Akustischer Sensor mit einem Gehäuse und einem an diesem Gehäuse angeordneten Membranelement |
US10330455B2 (en) | 2016-09-19 | 2019-06-25 | United Technologies Corporation | Tri-axial capacitance probe with case integrated housing |
JP6939429B2 (ja) | 2017-11-02 | 2021-09-22 | 株式会社デンソー | 超音波センサ |
DE102018106333A1 (de) * | 2018-03-19 | 2019-09-19 | HELLA GmbH & Co. KGaA | Sensorvorrichtung zur Erfassung von Schall, insbesondere zur Erfassung von Körperschall an einem Fahrzeug |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3890423A (en) * | 1973-07-27 | 1975-06-17 | Nusonics | Electroacoustic transducer assembly |
CA1087004A (en) | 1976-08-11 | 1980-10-07 | Michael J. Hampshire | Sound generator |
US4228379A (en) * | 1978-08-28 | 1980-10-14 | American District Telegraph Company | Diaphragm type piezoelectric electroacoustic transducer |
DE3137745A1 (de) | 1981-09-23 | 1983-04-07 | Egon 5000 Köln Gelhard | Sensor fuer die durchfuehrung der distanzmessung nach dem ultraschalll-echoprinzip |
FR2530108B1 (fr) * | 1982-07-12 | 1986-08-22 | Geophysique Cie Gle | Nouvel hydrophone |
DE3441684A1 (de) | 1984-11-15 | 1986-05-15 | SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen | Elektroakustischer wandler |
US4918990A (en) * | 1987-02-26 | 1990-04-24 | Panametrics, Inc. | Ultrasonic transducer assembly |
DE3721209C2 (de) * | 1987-06-26 | 1997-04-30 | Grieshaber Vega Kg | Schall-/Ultraschallmeßgerät |
US5059851A (en) * | 1990-09-06 | 1991-10-22 | Cardiometrics, Inc. | Miniature ultrasound high efficiency transducer assembly, guidewire using the same and method |
EP0477575A1 (de) | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | US-Wandler, insbesondere zur Luft- und Gasdurchflussmessung, und Verfahren zur Herstellung desselben |
US5121628A (en) * | 1990-10-09 | 1992-06-16 | Merkl Arthur W | Ultrasonic detection system |
DE4114180C2 (de) * | 1991-05-01 | 2003-04-03 | Microsonic Ges Fuer Mikroelekt | Ultraschallwandler |
DE59510158D1 (de) * | 1995-09-28 | 2002-05-16 | Endress Hauser Gmbh Co | Ultraschallwandler |
DE19626293A1 (de) * | 1996-07-01 | 1998-01-08 | Teves Gmbh Alfred | Ultraschallwandler mit Kontaktglied |
-
1997
- 1997-10-07 DE DE19744229A patent/DE19744229A1/de not_active Ceased
-
1998
- 1998-10-05 EP EP98959707A patent/EP1064645B1/de not_active Expired - Lifetime
- 1998-10-05 DE DE59809750T patent/DE59809750D1/de not_active Expired - Lifetime
- 1998-10-05 US US09/529,136 patent/US6374676B1/en not_active Expired - Fee Related
- 1998-10-05 WO PCT/DE1998/002938 patent/WO1999018563A2/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
US6374676B1 (en) | 2002-04-23 |
EP1064645A2 (de) | 2001-01-03 |
WO1999018563A3 (de) | 1999-06-10 |
DE59809750D1 (de) | 2003-10-30 |
WO1999018563A2 (de) | 1999-04-15 |
DE19744229A1 (de) | 1999-04-29 |
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