WO2012175491A2 - Appareil capteur à ultrasons comportant un élément d'amortissement et un couvercle de montage, dispositif et procédé de fabrication d'un tel appareil capteur à ultrasons - Google Patents

Appareil capteur à ultrasons comportant un élément d'amortissement et un couvercle de montage, dispositif et procédé de fabrication d'un tel appareil capteur à ultrasons Download PDF

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Publication number
WO2012175491A2
WO2012175491A2 PCT/EP2012/061701 EP2012061701W WO2012175491A2 WO 2012175491 A2 WO2012175491 A2 WO 2012175491A2 EP 2012061701 W EP2012061701 W EP 2012061701W WO 2012175491 A2 WO2012175491 A2 WO 2012175491A2
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic sensor
damping element
sensor device
mounting lid
mounting
Prior art date
Application number
PCT/EP2012/061701
Other languages
German (de)
English (en)
Other versions
WO2012175491A3 (fr
Inventor
Thomas Jung
Hans-Wilhelm Wehling
Hubert Neft
Original Assignee
Valeo Schalter Und Sensoren Gmbh
Volkswagen Aktiengesellschaft
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, Volkswagen Aktiengesellschaft filed Critical Valeo Schalter Und Sensoren Gmbh
Publication of WO2012175491A2 publication Critical patent/WO2012175491A2/fr
Publication of WO2012175491A3 publication Critical patent/WO2012175491A3/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
    • 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
    • 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
    • G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area

Definitions

  • An ultrasonic sensor device having a damping element and a mounting lid, an arrangement and method for producing such an ultrasonic sensor device
  • the invention relates to an ultrasonic sensor device for a motor vehicle, comprising an ultrasonic sensor having a - in particular pot-shaped - membrane for emitting and / or receiving ultrasonic signals, and with a to the
  • Ultrasonic sensor can be fastened to a trim part of the motor vehicle. This means in particular that the mounting lid in the transmission direction in front of the
  • Ultrasonic sensor is arranged and thus the sound transmission through the
  • Mounting cover can take place therethrough or the mounting lid a
  • Through-opening may have, through which the membrane extends through, and in this case the front of the membrane with a front side of the mounting lid can be substantially flush
  • the device also has a, in particular made of ceramic, damping element, which has a passage opening for the membrane.
  • the invention also relates to an arrangement with such an ultrasonic sensor device and a trim part of a motor vehicle, in particular a bumper.
  • the invention also relates to a method for producing such an ultrasonic sensor device.
  • Ultrasonic sensors are already state of the art and can be installed in a known manner in the front area and in the rear area of the motor vehicle, namely, for example, on the bumpers.
  • the ultrasonic sensors are
  • Vehicle environment and more precisely on the distances between the vehicle on the one hand and the obstacles located in its surroundings on the other.
  • Driver assistance devices may include, for example, parking assistance systems, systems for monitoring blind spots, systems for keeping distance,
  • ultrasonic sensors are arranged concealed in bumpers. This means that they are arranged in continuous recesses or passage openings in the bumper and are visible on the outside.
  • the cup-shaped membrane of the ultrasonic sensor - the so-called aluminum pot - extends through the through hole of the bumper, so that a front side or front surface of the membrane flush with the externa ßeren surface of the bumper.
  • Transmittance characteristics are advantageous for many applications. It is desirable for blind spot detection to be able to produce an asymmetrical transmission directivity. For parking assistance, it is also desirable that ultrasound sensors be narrower horizontally and vertically narrower
  • ultrasonic sensors In the case of visible and thus not concealed built-in ultrasonic sensors on the bumper of a vehicle they are arranged there by means of a holder, which is attached with a double-sided adhesive tape, hot caulked or ultrasonically attached to the bumper. The ultrasonic sensors can then be mounted in the holder. This attachment is sufficient for non-concealed converter built despite the large tolerances. The holder is rarely removed from the bumper. In a converter exchange, the converter is disengaged from the locking connection from the holder and the new converter can be locked immediately without further changes.
  • the transducer or ultrasonic sensor must be mechanically fixed behind the bumper. This is necessary so that the ultrasonic sensor can transmit lossless through the bumper. To the To keep transmission and reception losses low, the transmission area of the
  • Ultrasonic sensors are mechanically fixed to the bumper connected or formed with a lossless coupling element between the transmitting surface of the ultrasonic sensor and the bumper.
  • an attenuation ring or stiffening element with a large modulus of elasticity is needed closely around the transducer.
  • This damping ring must be mechanically fixed to the bumper or the holder.
  • a corresponding embodiment of an electroacoustic transducer is known for example from DE 42 38 924 A1.
  • DE 42 38 924 A1 A corresponding embodiment of an electroacoustic transducer is known for example from DE 42 38 924 A1.
  • this installation is only possible with completely flat bumpers, as shown in the prior art. In uneven bumpers this known design leads to significant disadvantages in terms of functionality, because the adhesive layer only limited
  • a particular challenge is therefore to provide an ultrasonic sensor device in which a variable and flexible shoring of the ultrasonic sensor in a concealed arrangement behind a cowling, in particular a
  • a mounting lid which is arranged on the front side of the ultrasonic sensor or on the cup-shaped membrane and covers the ultrasonic sensor. About this hoody
  • the ultrasonic sensor device or the single ultrasonic sensor is attached to the back surface of the trim part, wherein the mounting lid is also reversibly releasably connected to the ultrasonic sensor.
  • the ultrasonic sensor device is improved so that they are suitable for a variety of circumstances or
  • the mounting lid covers the front of the membrane from the front.
  • the said mounting cover has au term on his the ultrasonic sensor
  • This damping element made of ceramic. This damping element is therefore a
  • Stiffening element and has a through opening through which the cup-shaped membrane extends through to abut against the back of the mounting lid.
  • the made of ceramic damping element prevents transmission of vibration to a larger area of the trim part, so that the radiation of the
  • An inventive ultrasonic sensor device for a motor vehicle comprises an ultrasonic sensor, a mounting cover and a damping element, which is a stiffening element and is formed, for example, of ceramic.
  • Ultrasonic sensor has a - in particular pot-shaped - membrane for emitting and / or receiving ultrasonic signals.
  • the mounting lid is on the
  • Mounting cover is arranged in the transmission direction in front of the ultrasonic sensor and the sound transmission can thus take place through the mounting cover or the mounting cover may have a through opening through which the membrane extends through, and thereby close the front of the membrane with a front of the mounting lid substantially flush can.
  • Mounting cover is the ultrasonic sensor on a cowling of the motor vehicle attached.
  • the mounting lid may optionally be on its the ultrasonic sensor
  • Damping element can be arranged. Also optionally it can be provided that the mounting lid is reversibly releasably connectable to a receiving part for the ultrasonic sensor.
  • the damping element has a passage opening through which the membrane extends. According to the invention it is provided that the
  • Mounting cover is formed of a plastic material, which on the
  • Damping element is molded.
  • the mounting cover au ßerdem tensioned around the damping element tolerance.
  • the production of the ultrasonic sensor device by encapsulating the damping element with the plastic material is much easier, because the damping element no longer has to be laboriously connected to the mounting cover, for example by means of an adhesive connection.
  • the procedure according to the invention thus makes it possible to achieve a particularly reliable frictional or positive fit and thus particularly well
  • vibration-transmitting connection between the damping element and the mounting cover made of plastic, which au except without screws and without similar fasteners.
  • the above-mentioned plastic material is a PP plastic, ie
  • the encapsulation of the damping element proves to be particularly advantageous because, as is known, such a PP plastic is difficult to bond with a damping element made of ceramic.
  • the damping element is formed of ceramic.
  • the transmission of the mechanical vibration can be particularly reliably and effectively limited, and the radiation characteristic
  • the ultrasonic sensor device can thus be designed defined.
  • Overshaping according to the invention also proves to be particularly advantageous, especially with a combination of PP plastic, on the one hand, and ceramic, on the other hand.
  • At least one recess is formed in the damping element.
  • the mounting cover has in this embodiment at least one pin which engages in the associated recess of the damping element, wherein the at least one pin is formed by the injection molding of the plastic material.
  • the at least one additional pin and in particular by a plurality of such pins, and the distance of the free, unattached surfaces is reduced, so that a release of the damping element of the mounting lid can be prevented due to about a linear expansion or due to different expansion coefficients.
  • the plurality of recesses are preferably distributed around the passage opening through which the cup-shaped membrane is inserted.
  • the plurality of recesses are arranged distributed annularly and equidistantly around the passage opening around.
  • Embodiment has the advantage that the mechanical adhesion or the mechanical connection is virtually reliable at each point.
  • Length range having a greater width than in a second length range is formed, wherein the first length range closer to the ultrasonic sensor than the second
  • Length range is.
  • a non-slip arrangement of the mounting lid or the damping element is ensured in the axial direction. It proves to be advantageous if a step is formed between the first and the second length range. Thus, it is prevented that the damping element of the
  • the at least one recess is preferably formed as a continuous opening or bore in the damping element, and the associated pin can be flush with a facing away from the mounting lid and the ultrasonic sensor facing back of the damping element.
  • This means that the at least one pin is also visible from the rear side of the damping element facing away from the mounting lid, and together with the surface of this rear side forms a flat or flush surface.
  • Such a continuous bore has the advantage that this opening can be formed without much effort with two different diameters, namely, for example, from the front side with a smaller diameter and from the back of the damping element with a larger diameter.
  • Damping element dissolves and connects to the plastic element, a vibration over the entire life of the motor vehicle and particularly strong connection between the damping element and the mounting lid is achieved.
  • an adhesive layer is arranged between the mounting lid and the damping element.
  • the same element is provided with a silanized surface, which bonds well with the liquid plastic during encapsulation, an even better adhesion can be made possible.
  • it can thus be provided that, before the encapsulation of the damping element, it is silanized at least in some areas.
  • the mounting lid is thus formed integrally with the damping element.
  • a receiving part in which the ultrasonic sensor can be inserted or latched. It can be provided that this receiving part for holding the ultrasonic sensor with the mounting lid is reversibly releasably connectable.
  • the mounting lid preferably has at least one latching element on an edge-side circumferential web. It can thus be the releasable Connection can be formed as a latching connection. This is on the one hand robust and on the other hand easy to handle, the insertion or removal of the
  • the dismantling of the ultrasonic sensor can be done so that by loosening the mounting lid, the splice between the sensor and the mounting lid is released and then the defective sensor can be removed.
  • the ultrasonic sensor may be arranged in the receiving part, which is designed for connection, in particular for locking, with the mounting lid.
  • the ultrasonic sensor is thus additionally protected again and virtually via such an adapter, which is the receiving part and the
  • Ultrasound sensor receives as much as possible, on the one hand protected and on the other hand easily connectable to the mounting lid. A direct force on the ultrasonic sensor can be avoided. In addition, no holding forces in the fully assembled state of the ultrasonic sensor device by the connection with the mounting lid on the ultrasonic sensor, so that only corresponding connection forces between the mounting lid and the receiving part arise.
  • Such a holding device which is formed by the mounting lid on the one hand and the receiving part on the other hand, which can be detachably connected to each other destructively, makes it possible to hold the ultrasonic sensor firmly in its position in concealed construction behind the cowling.
  • the ultrasonic sensor has two latching elements, which engage in resilient complementary latching tabs of the receiving part, whereby a corresponding positioning of the ultrasonic sensor is achieved in the receiving part.
  • this locking connection is also designed so that a certain contact pressure of the membrane of the ultrasonic sensor is generated at the mounting lid.
  • the preferably provided bonding is then supported, in which the ultrasonic sensor is pressed against an adhesive surface. It can be provided that the mounting lid on his the
  • Ultrasonic sensor facing back has a central surface area for conditioning for the membrane of the ultrasonic sensor.
  • the damping element or stiffening element is preferably designed as a completely closed ring. It can also be provided that the front side and the rear side of the damping element are designed differently. In particular, the front side, with which the damping element is arranged in the mounting cover, have a certain inclination, for example a conical shape.
  • the back of the damping element is flat, so that a corresponding system is ensured in the above-mentioned receiving part for the ultrasonic sensor.
  • the damping element is around the above-mentioned central
  • Damping element extends through and comes directly into contact with the central surface area.
  • the invention also relates to an arrangement with an inventive
  • Ultrasonic sensor device and with a trim part, in particular a bumper, on the back of the mounting lid is fixed with its front side.
  • the front side of the mounting lid is adapted to the shape of the back of the trim part, in particular the front side rests over its entire surface on the back.
  • Ultrasonic sensor device can thereby be achieved, and this solely by the fact that the mounting lid has individual shapes and configurations.
  • the front side of the mounting lid is glued to the back of the trim panel.
  • a full-surface bonding to the back of the trim panel can be ensured by preferably the same contour and thus shaping on the front side of the
  • Mounting lid is formed in relation to the local mounting position.
  • the mounting lid can also be made of the same material as the trim part. Alternatively, it can also be provided that the mounting cover is formed of a harder plastic than the covering part, in order to reduce the modulus of elasticity over the temperature and to improve the transmission directivity of the ultrasonic sensor.
  • a motor vehicle according to the invention comprises an arrangement according to the invention.
  • the invention also includes a method for producing a
  • An ultrasonic sensor device for a motor vehicle by providing a
  • Ultrasonic sensor having a membrane by providing a
  • annular damping element having a through opening through which the membrane is inserted through, as well as by providing a mounting lid for mounting the ultrasonic sensor to a trim part of the motor vehicle.
  • the mounting lid is formed of a plastic material which is attached to the
  • Damping element is molded.
  • Fig. 1 is a schematic representation of an exploded view of a
  • An ultrasonic sensor device according to an embodiment of the invention.
  • 2 shows a schematic illustration of the ultrasonic sensor device according to FIG
  • Fig. 3 is a schematic illustration of the ultrasonic sensor device in an assembled state
  • FIG. 4 is a schematic representation of the front side of a mounting cover and a damping element
  • Fig. 5 shows a schematic representation of the back of the mounting lid
  • Fig. 6 in a schematic representation of the mounting lid with the
  • Damping element wherein the mounting lid is molded onto the damping element
  • FIG. 7 is a schematic representation of a sectional view through the mounting cover and the damping element according to FIG. 6;
  • FIG. 8 is a schematic representation of an arrangement according to a first
  • FIG. 9 in a schematic representation of an arrangement according to a second
  • an ultrasonic sensor device 1 is shown in an exploded view. This includes an ultrasonic sensor 2, the non-destructive solvable in one
  • Receiving part 3 fastened, in particular latched is.
  • two latching elements 4 and 5 are formed by way of example, which are provided for latching in latching tabs 6 and 7 of a receiving shaft 8 of the integrally formed from plastic receiving part 3.
  • the receiving part 3 also comprises a base 9, which is cylindrical and has a larger diameter than the receiving shaft 8. At one edge 10 of the base 9 are also two locking tabs 1 1 and 12th
  • the mounting lid 15 is integrally formed of plastic and connected by the latching with the receiving part 3 and non-destructive and reversibly releasably connected thereto. Through the mounting lid 15 and the
  • Receiving part 3 is a holder or a holder formed in two parts. As a result, a highly flexible and variable configuration of the ultrasonic sensor device 1 can be ensured and a wide variety of installation options of the ultrasonic sensor device 1 in a wide variety of installation situations on a trim part of a vehicle can be made possible.
  • the ultrasonic sensor device 1 moreover also includes a damping element 16, which is designed as a ring and as
  • the damping ring 16 is formed for example of ceramic. On the one hand, it serves to dampen the vibration transmission to the
  • Covering part serves to limit the signal radiation of the ultrasonic sensor. 2
  • the mounting lid 15 has a recess 18 on its rear side 17 facing the ultrasonic sensor 2. This is limited circumferentially and circumferentially by a web 19, to which the locking elements 13 and 14 are formed. When installed, the ultrasonic sensor 2 extends into the recess 18.
  • the mounting lid 15 has on its side facing the ultrasonic sensor 2 inside 17 a bottom of the recess 18, on the one hand by a flat circular
  • Receiving area 21 is formed with the contact surface 22 for the system of the damping element 16.
  • the mounting lid 15 is preferably a transmission sealing element or a
  • Emitter light characteristic element arranged, in particular integrated. Preferably, this is formed in the region of the central surface region 20, so that thereby emitted by the ultrasonic sensor 2 ultrasonic signals with desired
  • a transmission element 23 is therefore also formed, which in particular has the functionality of the transmission directivity.
  • the central surface area 20 can also be provided that the
  • Mounting cover 15 has a central circular passage opening through which the membrane 24 extends therethrough.
  • the front side 25 of the membrane 24 can be flush with the front side 31 of the mounting lid 15.
  • a passage opening which is indicated schematically in Fig. 2 with 40, is the
  • Ultrasonic sensor device 1 improved overall.
  • FIG. 2 shows an exploded view of the ultrasonic sensor device 1 from another viewing direction.
  • the ultrasonic sensor 2 has a diaphragm 24 which is, for example, an aluminum pot having a front part 25.
  • the front part 25 represents a front side of the membrane 24 and has a flat outer surface which comes into abutment with the central surface region 20 and is adhesively bonded. Is this
  • Transmission element 23 formed with the function of the transmission directivity, the coupling surface of this transmission element 23, for example, oval or rectangular and smaller in area than the surface of the outside of the front part 25th
  • the base 9 has, on its inner upper side, a groove 26 which serves to receive the
  • This subset 19 also has an opening 27, through which the membrane 24 of the ultrasonic sensor 2 extends, in order to be able to come into abutment with the central surface region 20.
  • the damping element 16 has a rear side 28 (FIG. 1) which is flat. This comes then in full contact with the bottom of the groove 26th
  • the damping element 16 comprises an inclined front side 29 (FIG. 2), which is inclined in particular in the shape of a cone. This means that the front side 29 is oriented such that the damping element 16 is thinner at the edge than in the region of an opening 30.
  • the front side 29 comes into full surface contact with the complementary thereto inclined contact surface 22 of the receiving area 21st
  • the mounting lid 15 has a front side or outer side 31, which is shaped individually and to the effect that it is preferably designed for full-surface contact with an inner side of a trim part, in particular a bumper of the vehicle.
  • Fig. 3 the assembled state of the ultrasonic sensor device 1 is shown.
  • the almost complete recording of the ultrasonic sensor 2 in the receiving shaft 8 can be seen.
  • the latching arrangement can be seen.
  • the latching arrangement between the mounting lid 15 and the receiving part 3 is shown.
  • the damping element 16 is made of ceramic, which is then encapsulated with a PP plastic material, so that the mounting lid 15 is formed by this encapsulation.
  • the PP plastic is stretched around the ceramics without damage by encapsulation.
  • the damping element 16 in addition to the passage opening 30 for the membrane 24 of the ultrasonic sensor 2, a plurality of recesses 32, which as
  • Passage opening 30 extend in the axial direction. These recesses 32, of which only one is designated for the sake of clarity, have a significantly smaller diameter than the central passage opening 30.
  • the above-mentioned circular through hole 40 may be provided in the center of the mounting lid 15. Through this, the membrane 24 of the sensor 2 can then be inserted through, so that the front side 25 of the membrane 24 is flush with the front side 31 of the mounting lid 15.
  • the continuous recesses 32 have a first length region 33 and a second one adjoining in the axial direction
  • Length range 34 wherein the first length portion 33 is closer to the ultrasonic sensor 2 and thus the back 28 of the damping element 16 faces.
  • the first axial length region 33 has a slightly larger diameter than the second axial length region 34, namely such that between the two longitudinal regions 33, 34, a step 35 is formed.
  • the recesses 32 are further around the through hole 30 around
  • recesses 32 arranged equidistantly and annularly distributed, wherein in the embodiment, a total of twelve such recesses 32 are provided. This number is given by way of example only, and several or even fewer recesses 32 may be provided. The number of recesses 32 may be greater than four, for example.
  • Damping element 16 rests with its rear side 28 on the injection molding tool, the plastic material flows up to the axial end of the recesses 32.
  • pins 36 which terminate flush with the back 28.
  • These pins 36 then have the shape of the recesses 32 and thus also have a corresponding first axial length region 33 and a second axial length region 34 with different diameters. Because the diameter of the first length region 33 is greater than that of the second length region 34, there is virtually a riveted connection between the damping element 16 and the
  • Before injection molding can also be an adhesive layer on the front side 29 of the
  • Damping element 16 are applied. Then this adhesive layer dissolves during encapsulation and thus connects to the plastic material. Thus, over the entire life of the motor vehicle reliable and reliable connection is reached over the mechanical vibrations can be transmitted effectively.
  • FIG. 6 shows a schematic sectional view of a first exemplary embodiment of an arrangement 37.
  • the ultrasonic sensor device 1 is fastened to a rear side 38 of a trim part designed as a bumper 39.
  • the back 38 is flat, so that a front side or
  • Ultrasonic sensor device 1 is shown here only with the mounting lid 15 and the damping element 16.
  • FIG. 9 shows a further exemplary embodiment of an arrangement 37.
  • the bumper 39 is curved or curved at its rear side 38.
  • the front side 31 of the mounting lid 15 is shaped to be complementary and curved in a corresponding manner, so that the front side 31 bears against the rear side 38 over its entire surface and is glued correspondingly.
  • the contact surface 22 of the receptacle 21 of the mounting lid 15 is also inclined and the inclination is adapted to the shape of the back 38.
  • the front side 29 of the damping element 16 is then also inclined in a complementary manner, so that again this is possible as far as possible over a whole area of the damping element 16
  • Front side 29 is guaranteed at the contact surface 22.

Abstract

L'invention concerne un appareil capteur à ultrasons (1) pour un véhicule à moteur, comportant un capteur à ultrasons (2) présentant une membrane (24) pour émettre et/ou recevoir des signaux ultrasonores, un couvercle de montage (15) se joignant côté frontal au capteur à ultrasons (2), au moyen duquel le capteur à ultrasons (2) peut être fixé à un élément de garniture (39) du véhicule à moteur, et un élément d'amortissement (16) comprenant une ouverture traversante (30) pour la membrane (24), le couvercle de montage (15) étant réalisé dans un matériau plastique injecté sur l'élément d'amortissement (16).
PCT/EP2012/061701 2011-06-20 2012-06-19 Appareil capteur à ultrasons comportant un élément d'amortissement et un couvercle de montage, dispositif et procédé de fabrication d'un tel appareil capteur à ultrasons WO2012175491A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011105017A DE102011105017A1 (de) 2011-06-20 2011-06-20 Ultraschallsensorvorrichtung für ein Fahrzeug sowie Anordnung mit einer derartigen Ultraschallsensorvorrichtung
DE102011105017.9 2011-06-20

Publications (2)

Publication Number Publication Date
WO2012175491A2 true WO2012175491A2 (fr) 2012-12-27
WO2012175491A3 WO2012175491A3 (fr) 2013-06-20

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Country Status (2)

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DE (1) DE102011105017A1 (fr)
WO (1) WO2012175491A2 (fr)

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DE102014111947A1 (de) 2014-08-21 2016-02-25 Valeo Schalter Und Sensoren Gmbh Verkleidungsvorrichtung für ein Kraftfahrzeug, Anordnung, Kraftfahrzeug sowie Herstellungsverfahren
CN114523910A (zh) * 2022-04-25 2022-05-24 成都汇通西电电子有限公司 一种实现透过铝制车门的超声波传感器固定结构

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DE102011105051A1 (de) * 2011-06-20 2012-12-20 Volkswagen Ag Ultraschallsensorvorrichtung für ein Fahrzeug sowie Anordnung mit einer derartigen Ultraschallsensorvorrichtung
DE202013000318U1 (de) * 2013-01-15 2013-04-10 Oechsler Aktiengesellschaft Ausstattungsgegenstand
DE102013022061A1 (de) 2013-12-23 2015-06-25 Valeo Schalter Und Sensoren Gmbh Verfahren zum Herstellen eines Ultraschallsensors für ein Kraftfahrzeug
DE102014115339A1 (de) 2014-10-21 2016-04-21 Valeo Schalter Und Sensoren Gmbh Ultraschallsensorvorrichtung für ein Kraftfahrzeug, Anordnung sowie Kraftfahrzeug
DE102015105672A1 (de) 2015-04-14 2016-10-20 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor für ein Kraftfahrzeug, Ultraschallsensoranordnung, Kraftfahrzeug sowie Verfahren zum Herstellen eines Ultraschallsensors
DE102015209904B4 (de) * 2015-05-29 2020-02-13 Volkswagen Aktiengesellschaft Überwachungsvorrichtung für eine Sensoranordnung in einem Kraftfahrzeug

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