WO2010139488A1 - Transducteur ultrasonore comportant un anneau de découplage, et procédé de montage - Google Patents

Transducteur ultrasonore comportant un anneau de découplage, et procédé de montage Download PDF

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Publication number
WO2010139488A1
WO2010139488A1 PCT/EP2010/003427 EP2010003427W WO2010139488A1 WO 2010139488 A1 WO2010139488 A1 WO 2010139488A1 EP 2010003427 W EP2010003427 W EP 2010003427W WO 2010139488 A1 WO2010139488 A1 WO 2010139488A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic transducer
decoupling ring
housing
assembly
double
Prior art date
Application number
PCT/EP2010/003427
Other languages
German (de)
English (en)
Inventor
Hans-Wilhelm Wehling
Thomas Jung
Daniel Kuhnle
Uwe Kupfernagel
Christian Frischmann
Original Assignee
Valeo Schalter Und Sensoren Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Schalter Und Sensoren Gmbh filed Critical Valeo Schalter Und Sensoren Gmbh
Publication of WO2010139488A1 publication Critical patent/WO2010139488A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details

Definitions

  • the invention relates to an ultrasonic transducer with a decoupling ring and method for mounting, or for installation of the ultrasonic transducer in parts of a vehicle body, according to the preamble of the main claim and the dependent claims.
  • Each ultrasonic transducer emits an ultrasonic signal, which is reflected by a possible obstacle and can be received by the same ultrasonic transducer and / or by other ultrasonic transducers.
  • a material layer is produced which consists of a film.
  • the film is first provided with a protective layer which is removed prior to assembly. This film is also preformed so that it can be connected to a decoupling material comprising the membrane.
  • the decoupling ring may only be mounted in the bumper of an unpainted ultrasonic transducer prior to assembly, or that it may be mounted after painting by refinishers themselves.
  • the assembly is made by hand or in a special device, but it should be noted that the decoupling ring is very soft and therefore it may happen that the decoupling ring by deformations after packing, transport, unpacking or mounting in the bumper not can rest flush with the housing of the ultrasonic transducer. It has been proven by experiments that water can collect in small gaps between the decoupling ring and the housing of the ultrasonic transducer and this can lead to false signals at low temperatures. Furthermore, such a ner gap also be responsible for the fact that the sound radiation to the rear, opposite to the intended direction of radiation, can be too large.
  • the invention is based on an ultrasonic transducer for a motor vehicle with a decoupling ring in the region of the housing bottom of the ultrasonic transducer, which may be part of a distance or environment detection system for a parking assistance system in a vehicle, for example.
  • the separately produced decoupling ring can be attached to the housing of the ultrasonic transducer by means of a permanent gap-free connection technology before and / or after the assembly of the ultrasonic transducer to a part of the body of the motor vehicle in an advantageous manner.
  • the separately produced decoupling ring is connected to the housing of the ultrasonic transducer by means of a double-sided adhesive tape.
  • the separately produced decoupling ring is connected to the housing of the ultrasonic transducer by means of a liquid adhesive prior to assembly of the ultrasonic transducer or that the separately prepared decoupling ring with the housing of the ultrasonic transducer by means of a printed on the decoupling ring or on the housing bottom adhesive and a thermal impression is connected prior to assembly of the ultrasonic transducer.
  • the separately produced decoupling ring with the housing of the ultrasonic transducer before mounting the ultrasonic transducer with a cover sheet still present on one side can be connected as protection against contamination or the separately prepared decoupling ring is connected to the housing of the ultrasonic transducer in the membrane by means of a clamp before assembly connected to the ultrasonic transducer.
  • the clamping can be effected, for example, by making the decoupling ring initially oval and then pressing it onto the annular membrane is then clamped, starting from the oval starting position to the round shape of the decoupling ring.
  • the position of the decoupling ring can not shift when the mountable decoupling ring, usually a decoupling ring, is attached to the housing of the ultrasonic transducer. It can thus be made possible a permanent connection over the entire operating time of the ultrasonic transducer on the vehicle.
  • the attachment of the decoupling ring with the proposed double-sided adhesive tape is preferably integrated into the assembly devices customary today, either in series production of the motor vehicle or in the paint shop.
  • the housing of the ultrasonic transducer is provided with a double-sided adhesive tape and it is added during the manufacturing process of the vehicle, the decoupling ring to the other side of the double-sided adhesive bonding surface.
  • the adhesive tape is glued to the housing in the manufacture of the ultrasonic transducer, but on the side of the decoupling ring, the cover or protective film on the adhesive surface is not initially removed. This will then deduct the painter before mounting in the bumper itself and then mount the decoupling ring and press.
  • the double-sided adhesive tape can for example consist of a base film, a printed, the geometry of the housing and the decoupling ring corresponding adhesive surface and protective films and transported by means of perforated tape in an automatic assembly machine in a mounting situation on the housing of the ultrasonic transducer.
  • FIG. 1 shows a partial section through an ultrasonic transducer according to the invention with a decoupling ring.
  • Figure 2 is a detail section of the ultrasonic transducer according to the figure 1 with a double-sided adhesive tape between the housing of the ultrasonic transducer and the decoupling ring.
  • FIG 3 shows a manufacturing step for attaching the decoupling ring to the housing with a double-sided adhesive tape.
  • FIG. 4 shows an adhesive tape with punchable adhesive surfaces and perforated strips for feeding in an automatic assembly machine according to FIG. 3.
  • FIG. 1 schematically shows a conventional ultrasonic transducer 1 with a housing 2 and a decoupling ring 3, which is held on the housing 2 via an adhesive surface 4 that is adhesive on both sides.
  • the ultrasound transducer 1 has a membrane 11, which is not explained here in more detail, which must be decoupled to an installation situation via the decoupling ring 3 in terms of vibration.
  • the ultrasonic transducer 1 is, for example, part of a distance or surroundings detection system for a parking assistance system in a vehicle and is usually arranged in the bumper of the vehicle.
  • FIG. 2 shows, in particular, the adhesive surface 4 in a detail section in the region of a housing bottom 12 of the housing 2.
  • an assembly step for producing an installation arrangement with the ultrasound transducer 1 according to the preceding figures can be taken.
  • a provided with the double-sided adhesive surfaces 4 adhesive tape 5 is here freed on both sides of protective films 6 and the housing 2 of the ultrasonic transducer 1 is in the direction of an arrow 7 by a Drilled hole 8 in the adhesive surfaces 4 and the decoupling ring 3 is pressed in the direction of an arrow 9 against it.
  • the adhesive tape 5 still has perforated strips 10 for transport in the assembly device, so that herewith a fully or semi-automatic assembly of the ultrasonic transducer 1 can be carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un transducteur ultrasonore (1) destiné à un véhicule, comportant un anneau de découplage (3) dans la zone du fond du boîtier du transducteur ultrasonore (1). L'anneau de découplage (3) fabriqué séparément peut être joint au boîtier (2) du transducteur ultrasonore (1) par assemblage permanent sans espacement avant et/ou après le montage du transducteur ultrasonore (1) sur un élément de la carrosserie du véhicule au moyen d'une surface de collage (4) double face.
PCT/EP2010/003427 2009-06-05 2010-06-08 Transducteur ultrasonore comportant un anneau de découplage, et procédé de montage WO2010139488A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009024065A DE102009024065A1 (de) 2009-06-05 2009-06-05 Ultraschallwandler mit einem Entkopplungsring und Montageverfahren
DE102009024065.9 2009-06-05

Publications (1)

Publication Number Publication Date
WO2010139488A1 true WO2010139488A1 (fr) 2010-12-09

Family

ID=42732264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/003427 WO2010139488A1 (fr) 2009-06-05 2010-06-08 Transducteur ultrasonore comportant un anneau de découplage, et procédé de montage

Country Status (2)

Country Link
DE (1) DE102009024065A1 (fr)
WO (1) WO2010139488A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011011541A1 (de) * 2011-02-17 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultraschallwandleranordnung mit einem Ultraschallwellen fokussierenden Mittel sowie Verfahren zum fokussierten Abstrahlen sowie Empfangen von fokussierten Ultraschallwellen
RU2566535C2 (ru) * 2013-01-28 2015-10-27 Кроне Аг Блок из ультразвукового преобразователя и держателя преобразователя

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014932A1 (de) 2012-07-27 2014-05-15 Valeo Schalter Und Sensoren Gmbh Verfahren zum Herstellen eines Ultraschallsensors für ein Kraftfahrzeug, Ultraschallsensor und Kraftfahrzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752921A1 (de) * 1997-11-28 1999-06-02 Bosch Gmbh Robert Ultraschallsensor
WO2007036528A1 (fr) * 2005-09-27 2007-04-05 Continental Automotive Gmbh Dispositif comprenant un element de vehicule et au moins un convertisseur electroacoustique, en particulier un convertisseur ultrasonique
DE102006008718A1 (de) * 2006-02-24 2007-08-30 Volkswagen Ag Ultraschallsensormodul
DE102007008744A1 (de) * 2006-03-15 2007-09-20 Denso Corp., Kariya Ultraschallsensor
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601656B4 (de) * 1996-01-18 2009-07-16 Valeo Schalter Und Sensoren Gmbh Bedämpfter Ultraschallwandler
DE10237721B4 (de) 2002-08-17 2011-06-09 Robert Bosch Gmbh Sensoreinbauvorrichtung
DE102006027594A1 (de) 2006-06-14 2007-12-20 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor und Verfahren zur Herstellung eines Ultraschallsensors
US7775110B2 (en) * 2006-09-22 2010-08-17 Denso Corporation Ultrasonic sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752921A1 (de) * 1997-11-28 1999-06-02 Bosch Gmbh Robert Ultraschallsensor
WO2007036528A1 (fr) * 2005-09-27 2007-04-05 Continental Automotive Gmbh Dispositif comprenant un element de vehicule et au moins un convertisseur electroacoustique, en particulier un convertisseur ultrasonique
DE102006008718A1 (de) * 2006-02-24 2007-08-30 Volkswagen Ag Ultraschallsensormodul
DE102007008744A1 (de) * 2006-03-15 2007-09-20 Denso Corp., Kariya Ultraschallsensor
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011011541A1 (de) * 2011-02-17 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultraschallwandleranordnung mit einem Ultraschallwellen fokussierenden Mittel sowie Verfahren zum fokussierten Abstrahlen sowie Empfangen von fokussierten Ultraschallwellen
RU2566535C2 (ru) * 2013-01-28 2015-10-27 Кроне Аг Блок из ультразвукового преобразователя и держателя преобразователя

Also Published As

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