EP1221689A2 - Boítier pour le transducteur à ultrasons pour un véhicule - Google Patents

Boítier pour le transducteur à ultrasons pour un véhicule Download PDF

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Publication number
EP1221689A2
EP1221689A2 EP01128483A EP01128483A EP1221689A2 EP 1221689 A2 EP1221689 A2 EP 1221689A2 EP 01128483 A EP01128483 A EP 01128483A EP 01128483 A EP01128483 A EP 01128483A EP 1221689 A2 EP1221689 A2 EP 1221689A2
Authority
EP
European Patent Office
Prior art keywords
ultrasonic transducer
cover
base part
housing
transducer according
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Withdrawn
Application number
EP01128483A
Other languages
German (de)
English (en)
Other versions
EP1221689A3 (fr
Inventor
Ingrid Theml
Armin Güllich
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.)
Valeo Schalter und Sensoren GmbH
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 EP1221689A2 publication Critical patent/EP1221689A2/fr
Publication of EP1221689A3 publication Critical patent/EP1221689A3/fr
Withdrawn legal-status Critical Current

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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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings
    • 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 present invention relates to an ultrasound transducer for a motor vehicle, with a housing with a Base part and a receiving opening through a Cover is at least partially closable.
  • Such an ultrasonic transducer is from the market known. Its housing includes a lower shell in which the individual functional components of the ultrasonic transducer can be used. Under the functional components become mechanical and electrical or electronic Parts, e.g. circuit boards, membrane, etc. Roger that. After inserting these functional components of the Ultrasonic transducer is placed on the lower shell appropriate top shell put on and locked with it, making an overall essentially cylindrical unit is formed. At least one face of this hollow cylindrical housing is through another wall part closed, in which there is an opening through which the membrane of the ultrasonic transducer in operation Can emit ultrasonic waves.
  • the known ultrasonic transducer has several Disadvantage. First, its assembly is relative time-consuming. Furthermore, when installing the Functional components of the ultrasonic transducer and the others Assembling the case to damage the Functional components of the ultrasonic transducer come. Finally, it turned out that the well-known Ultrasound transducer in some cases compared to that Penetration of moisture is not sufficiently tight, so that the ultrasonic transducer is penetrating through the Moisture has been damaged.
  • the present invention therefore has the task of a Ultrasonic transducers of the type mentioned at the beginning form that the assembly is made easier and safer can be protected and its functional components better are.
  • Such a flexible material bridge can be made of the same Material such as the base part and / or the cover, but simply have a smaller wall thickness.
  • a fatigue problem plays with this flexible Material bridge does not matter because it is basically only once, namely after inserting the functional components of the Ultrasonic transducer in the housing is moved. Possibly. can the material bridge but also from a material other than Base part and / or cover are manufactured, which the for the movement of the cover in relation to the base part has the necessary flexibility.
  • the one-piece connection of the cover with the The installer has the basic part when inserting the Functional components of the ultrasonic transducer in the housing to do only with a few separate parts, namely the Functional components of the ultrasonic transducer and the housing for their inclusion. If the functional components as a unit are pre-assembled, there are only two separate parts handle.
  • the cover After inserting the functional components of the Ultrasonic transducer, the cover is closed, which the ultrasound transducer is finished as a unit.
  • the Material bridge Through the Material bridge is the cover over the Base part or the receiving opening aligned what the Closing process of the cover is considerably simplified and accelerated.
  • the gap between cover and base part at least partially closed, making moisture less easy can get inside the housing.
  • a film hinge is characterized by an im Essentially, the entire length of the cover extending material bridge, which is a very small Has thickness. Such a film hinge is light manufacture and seals the gap between the base part and Excellent coverage against intrusion Moisture.
  • the preferred one Snap connection ensures that the cover after the Inserting the functional components of the ultrasonic transducer in the housing and after the subsequent closing movement also remains securely in the closed position.
  • Base and cover are preferably each in Essentially designed as semi-cylindrical shells. On this way is the receiving opening for the Maximum functional components of the ultrasonic transducer.
  • the cover and the Base part are of different lengths and at one end of the longer part in the form of the other part corresponding web is formed. Through this footbridge a secure mounting of the functional components of the Ultrasonic transducer guaranteed in the housing.
  • an end wall with a recess is molded for the membrane of the ultrasonic transducer.
  • This increases the rigidity of the housing, thereby can be prevented that columns in operation form between base part and cover, through which Moisture can penetrate.
  • this will the functional components of the ultrasonic transducer, in particular its membrane, even better stored in the housing.
  • the sealing elements can be training according to the Act tongue and groove or it can also be simple elastic sealing lips may be provided.
  • the assembly is made even easier when inside of the housing plug contacts for connection to the electrical and electronic functional components of the Ultrasonic transducer are molded.
  • the assembly of the Ultrasonic transducer is further facilitated by that a socket is formed on the outside of the housing. Through this, the plug contacts inside the Housing with the on-board facilities simple and quick way to connect.
  • the housing has an opening has, through which a potting material, in particular a Foam into which the interior of the housing can be inserted.
  • the rigidity of the housing can be increased that on the base part and / or the cover a circumferential reinforcing rib is formed.
  • the attack can preferably be in the aforementioned Reinforcing rib can be integrated.
  • the base part and / or the cover is preferably made of a plastic and here again preferably in Injection molding process. With this Manufacturing process is flexible according to the invention Material bridge particularly easy to implement.
  • the housing in the figure bears the overall reference number 12. It is essentially one out of one semi-cylindrical lower shell existing base part 14 and one also from a semi-cylindrical shell existing cover 16 formed.
  • the cover 16 is on the rear longitudinal edge in the figure via an im present embodiment as a film hinge trained flexible material bridge 18 with the base part 14 connected. Show the housing 12 or the base part 14 a receiving opening 17 through which a receiving space 19 for Functional components of the not shown in the figure Ultrasonic transducer is accessible.
  • the front longitudinal edge 20 of the cover 16 in the figure is partially formed so that it with locking elements 22nd Work together on the front longitudinal edge of the base part 14 can.
  • the end face facing the viewer in the figure the cover 16 is through a semicircular wall 24 completed, in which a recess 26 in the form of a Half oval exists.
  • the edge of the base part 14 facing the cover 16 and the edge of the wall 28 facing the cover 16 each with a vertical web 32 or 34 Mistake. Complementary to this are the relevant Edges of the cover 16 webs 36 and 38 formed, which together with the webs 32 and 34 as a moisture barrier serve.
  • the longitudinal extent of the cover 16 is slightly less than that of the base part 14, with both parts on their the End facing viewer end at the same height.
  • a semicircular web 40 is formed and between the semicircular web 40 and the base part 14 is one End wall 42 is present.
  • a recess 44 which is approximately the shape of the Membrane of the ultrasonic transducer (the membrane is like the other functional components of the ultrasonic transducer, for example printed circuit boards, electronic components, etc., not shown in the figure).
  • the cover facing edge of the web 40 is conical, with a complementary edge on the cover 16. This too serves as a seal against moisture.
  • the web to the Molded cover so that two are roughly the same Half shells are formed.
  • the longitudinal end facing the viewer three vertical, parallel plug contacts 46 are formed. These are used for electrical connection with the electrical and electronic functional components of the Ultrasonic transducer.
  • Perpendicular to the longitudinal extension of the Housing 12 is also on the base part 14 in the area its longitudinal end facing the viewer is an elongated one Formed socket 48.
  • a Plugs are received through which the plug contacts 46 and thereby the ultrasonic transducer with the on-board electrical system can be connected.
  • the socket 48 perpendicular to the longitudinal extent of the housing 12 what offers manufacturing advantages. Are basically but also other angles between the socket and the housing possible.
  • the base part 14 is also in the Area of its longitudinal end facing the viewer reinforcing rib 50 extending in the circumferential direction is present, and there is one in the same axial position corresponding reinforcing rib 52 on the cover 16 formed.
  • the reinforcing ribs 50 and 52 form at the same time a stop for positioning the Housing 12 on a vehicle-side part.
  • the two Reinforcing ribs also as a fastening in the sense of a Serve snapping. All parts of the housing 12 to on the plug contacts 46, are made of a plastic manufactured.
  • the housing 12 is inclusive of the Plug contacts 46 in a single injection molding process made in one piece.
  • the housing 12 is used as follows:
  • the housing 12 is initially in the open state before, i.e. that the receiving opening 17 is not closed by the cover 16.
  • the Functional components of the ultrasonic transducer are now in the Recording room 19 used and with appropriate contacts pushed onto the plug contacts 46. In this position are the functional components on the one hand by the Plug contacts 46 and the other by the semicircular web 40 held securely.
  • the Housing 12 with the functional components located therein of the ultrasonic transducer can now be electrically via the Socket 48 with the vehicle-side devices connected and can also be used as a stop Reinforcing ribs 50 and 52 securely on the motor vehicle be positioned.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
EP01128483A 2001-01-05 2001-12-07 Boîtier pour le transducteur à ultrasons pour un véhicule Withdrawn EP1221689A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001100376 DE10100376A1 (de) 2001-01-05 2001-01-05 Ultraschallwandler für ein Kraftfahrzeug
DE10100376 2001-01-05

Publications (2)

Publication Number Publication Date
EP1221689A2 true EP1221689A2 (fr) 2002-07-10
EP1221689A3 EP1221689A3 (fr) 2007-12-26

Family

ID=7669865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128483A Withdrawn EP1221689A3 (fr) 2001-01-05 2001-12-07 Boîtier pour le transducteur à ultrasons pour un véhicule

Country Status (2)

Country Link
EP (1) EP1221689A3 (fr)
DE (1) DE10100376A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004036970A1 (fr) * 2002-10-11 2004-04-29 Hirschmann Electronics Gmbh & Co. Kg Boitier pour amplificateur d'antenne
WO2007093214A1 (fr) * 2006-02-14 2007-08-23 Valeo Schalter Und Sensoren Gmbh Support de capteur, notamment pour maintenir des capteurs d'espacement sur des parties de véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017123403B4 (de) * 2017-10-09 2019-05-09 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor für ein Fahrzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821312A1 (de) * 1977-05-16 1978-11-30 Commissariat Energie Atomique Verfahren und vorrichtung zur untersuchung von gegenstaenden mit hilfe eines fokussierten ultraschallwellenbuendels
DE19601987A1 (de) * 1996-01-20 1997-07-24 Teves Gmbh Alfred Überlackierbarer Stoßfänger mit Ultraschallwandler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812182C2 (de) * 1988-04-13 1997-05-15 Teves Gmbh Alfred Wandler, insbesondere Ultraschallwandler für ein in ein Kraftfahrzeug eingebautes Entfernungsmeßgerät
DE19626291A1 (de) * 1996-07-01 1998-01-08 Teves Gmbh Alfred Befestigungshülse für Ultraschallwandler mit selbstsichernder Befestigung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821312A1 (de) * 1977-05-16 1978-11-30 Commissariat Energie Atomique Verfahren und vorrichtung zur untersuchung von gegenstaenden mit hilfe eines fokussierten ultraschallwellenbuendels
DE19601987A1 (de) * 1996-01-20 1997-07-24 Teves Gmbh Alfred Überlackierbarer Stoßfänger mit Ultraschallwandler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004036970A1 (fr) * 2002-10-11 2004-04-29 Hirschmann Electronics Gmbh & Co. Kg Boitier pour amplificateur d'antenne
US7189919B2 (en) 2002-10-11 2007-03-13 Hirschmann Electronics Gmbh & Co. Kg Housing for antenna amplifier
WO2007093214A1 (fr) * 2006-02-14 2007-08-23 Valeo Schalter Und Sensoren Gmbh Support de capteur, notamment pour maintenir des capteurs d'espacement sur des parties de véhicule
US8146450B2 (en) 2006-02-14 2012-04-03 Valeo Schalter Und Sensoren Gmbh Sensor mount, in particular for mounting inter-vehicle distance sensors on vehicle components

Also Published As

Publication number Publication date
DE10100376A1 (de) 2002-07-11
EP1221689A3 (fr) 2007-12-26

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