EP2116474B1 - Capteur d'ultrasons - Google Patents

Capteur d'ultrasons Download PDF

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Publication number
EP2116474B1
EP2116474B1 EP20090005354 EP09005354A EP2116474B1 EP 2116474 B1 EP2116474 B1 EP 2116474B1 EP 20090005354 EP20090005354 EP 20090005354 EP 09005354 A EP09005354 A EP 09005354A EP 2116474 B1 EP2116474 B1 EP 2116474B1
Authority
EP
European Patent Office
Prior art keywords
housing
receiver
transmitter
ultrasonic
sensor
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.)
Revoked
Application number
EP20090005354
Other languages
German (de)
English (en)
Other versions
EP2116474A1 (fr
Inventor
Jürgen Patz
Thomas Merk
Jörg Klaiber
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.)
Leuze Electronic GmbH and Co KG
Original Assignee
Leuze Electronic GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40863519&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2116474(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Leuze Electronic GmbH and Co KG filed Critical Leuze Electronic GmbH and Co KG
Priority to EP09012236A priority Critical patent/EP2131353B1/fr
Publication of EP2116474A1 publication Critical patent/EP2116474A1/fr
Application granted granted Critical
Publication of EP2116474B1 publication Critical patent/EP2116474B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the transmitter and the receiver In known ultrasonic sensors of this type, the transmitter and the receiver must each be installed in a sensor housing and aligned during installation within the housing, that is to be adjusted.
  • the transmitter and the receiver also have connection cables that must be contacted to electronic components. In addition, these connection cables must be shielded in order to realize protection against electromagnetic interference.
  • the transmitter and the receiver of such an ultrasonic sensor each form an ultrasonic transducer with a piezoelectric element, which Generate or receive ultrasonic waves. This piezoelectric element is integrated in a converter housing consisting of metal or hard plastic.
  • the mutually facing sides of the fork arms which have the exit surfaces, at which the transmitter or receiver open, have a convex-shaped cross-section.
  • the probability of detection of the ultrasound sensor 1 can be further increased by placing an aperture 12 in front of the transmitter 6 and / or in front of the receiver 7. How out FIG. 2 can be seen, recesses 13 are provided in the fork arms 2a, 2b of the sensor housing 2, so that the panels 12 can be snapped onto the fork arms 2a, 2b.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Claims (7)

  1. Capteur d'ultrasons comprenant un émetteur émettant des ondes ultrasonores, un récepteur recevant des ondes ultrasonores, une électronique d'évaluation pour générer un signal de détection d'objet en fonction des signaux de réception à la sortie du récepteur, et un boîtier de capteur, caractérisé en ce que le boîtier de capteur (2) présente un corps de boîtier (3) avec une ouverture de boîtier latérale qui peut être fermée par un couvercle de boîtier (4) formant un élément supplémentaire du boîtier de capteur (2), l'émetteur (6), le récepteur (7) et une carte de circuits imprimés (8) avec les composants de l'électronique d'évaluation pouvant être introduits dans des logements du corps de boîtier (3) par l'ouverture de boîtier ouverte.
  2. Capteur d'ultrasons selon la revendication 1, caractérisé en ce que le couvercle de boîtier (4) est relié au corps de boîtier (3) par une charnière film (5).
  3. Capteur d'ultrasons selon une des revendications 1 ou 2, caractérisé en ce que le boîtier de capteur (2) est réalisé en forme de fourche, et que le boîtier de capteur (2) présente deux bras de fourche (2a, 2b) dont les axes longitudinaux s'étendent parallèlement l'un à l'autre, et que l'émetteur (6) est disposé dans un bras de fourche (2a) et le récepteur (7) dans l'autre bras de fourche (2b).
  4. Capteur d'ultrasons selon la revendication 3, caractérisé en ce que l'émetteur (6) et le récepteur (7) sont disposés l'un en face de l'autre dans les bras de fourche (2a, 2b), leurs axes étant inclinés d'un angle prédéfini par rapport à la verticale sur les axes longitudinaux des bras de fourche (2a, 2b), et la direction de transport des objets à détecter s'étendant perpendiculairement au plan défini par les bras de fourche (2a, 2b).
  5. Capteur d'ultrasons selon la revendication 3, caractérisé en ce que les côtés tournés l'un vers l'autre des bras de fourche (2a, 2b), lesquels présentent les surfaces de sortie sur lesquelles l'émetteur (6) ou le récepteur (7) débouche, présentent une coupe transversale de forme convexe.
  6. Capteur d'ultrasons selon une des revendications 1 à 5, caractérisé en ce qu'un obturateur (12) pour les ondes ultrasonores peut être encliqueté sur le boîtier de capteur (2).
  7. Capteur d'ultrasons selon une des revendications 1 à 6, caractérisé en ce que le boîtier de capteur (2) présente un logement pour une barrette à broches (11) ou une fiche.
EP20090005354 2008-05-10 2009-04-15 Capteur d'ultrasons Revoked EP2116474B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09012236A EP2131353B1 (fr) 2008-05-10 2009-04-15 Transducteur ultrasonique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810023187 DE102008023187A1 (de) 2008-05-10 2008-05-10 Ultraschallsensor

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP09012236A Division EP2131353B1 (fr) 2008-05-10 2009-04-15 Transducteur ultrasonique
EP09012236.7 Division-Into 2009-09-26

Publications (2)

Publication Number Publication Date
EP2116474A1 EP2116474A1 (fr) 2009-11-11
EP2116474B1 true EP2116474B1 (fr) 2010-05-05

Family

ID=40863519

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20090005354 Revoked EP2116474B1 (fr) 2008-05-10 2009-04-15 Capteur d'ultrasons
EP09012236A Active EP2131353B1 (fr) 2008-05-10 2009-04-15 Transducteur ultrasonique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09012236A Active EP2131353B1 (fr) 2008-05-10 2009-04-15 Transducteur ultrasonique

Country Status (2)

Country Link
EP (2) EP2116474B1 (fr)
DE (3) DE102008023187A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2388579A1 (fr) * 2010-05-19 2011-11-23 Leuze electronic GmbH + Co. KG Capteur
DE202010011113U1 (de) * 2010-08-05 2010-11-04 Leuze Electronic Gmbh + Co. Kg Ultraschallsensor
EP3547456A1 (fr) * 2018-03-27 2019-10-02 Leuze electronic GmbH + Co. KG Capteur
CN108502841A (zh) * 2018-05-04 2018-09-07 李扬渊 一种能够实现超声波传感的电子设备及其制造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3860719D1 (de) * 1987-03-20 1990-11-08 Siemens Ag Geraet zur erzeugung und abstrahlung von ultraschall,insbesondre fuer ultraschall-therapie.
FR2783915A1 (fr) * 1998-09-28 2000-03-31 Schlumberger Ind Sa Transducteur ultrasonore
DE19921217B4 (de) 1999-05-07 2004-11-25 Leuze Electronic Gmbh + Co Kg Vorrichtung zur Detektion von Etiketten
DE102004051326B4 (de) * 2004-10-21 2007-05-24 Leuze Electronic Gmbh & Co Kg Gehäuse für Lichtschranken, Reflexionslichtschranken, Lichttester oder Distanzsensoren
DE202005006831U1 (de) * 2005-04-29 2005-07-07 Leuze Electronic Gmbh & Co Kg Ultraschallsensor
JP4995438B2 (ja) * 2005-06-14 2012-08-08 株式会社キーエンス 反射型光電スイッチ
DE202007002864U1 (de) 2007-02-27 2007-07-05 Pepperl + Fuchs Gmbh Gabelgehäuse, insbesondere für Licht- oder Ultraschallschranken

Also Published As

Publication number Publication date
EP2116474A1 (fr) 2009-11-11
EP2131353A1 (fr) 2009-12-09
DE502009000121D1 (de) 2010-11-18
DE102008023187A1 (de) 2009-11-19
DE502009000016D1 (de) 2010-06-17
EP2131353B1 (fr) 2010-10-06

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