WO2003041977A2 - Fixing sensors on motor vehicle glazing - Google Patents

Fixing sensors on motor vehicle glazing Download PDF

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Publication number
WO2003041977A2
WO2003041977A2 PCT/EP2002/012621 EP0212621W WO03041977A2 WO 2003041977 A2 WO2003041977 A2 WO 2003041977A2 EP 0212621 W EP0212621 W EP 0212621W WO 03041977 A2 WO03041977 A2 WO 03041977A2
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
support
glazing
chute
sensors
Prior art date
Application number
PCT/EP2002/012621
Other languages
German (de)
French (fr)
Other versions
WO2003041977A3 (en
Inventor
Ali-Ishan Dalgic
Original Assignee
Glaverbel
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 Glaverbel filed Critical Glaverbel
Priority to EP02791673A priority Critical patent/EP1446300A2/en
Publication of WO2003041977A2 publication Critical patent/WO2003041977A2/en
Publication of WO2003041977A3 publication Critical patent/WO2003041977A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0874—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means characterized by the position of the sensor on the windshield
    • B60S1/0881—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means characterized by the position of the sensor on the windshield characterized by the attachment means on the windshield
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details

Definitions

  • the invention relates to the attachment of elements of the sensor type intended to control functions, sensors which are placed behind automobile windows.
  • Typical sensors are intended to receive signals from outside the vehicle or monitor the operation of elements integral with this glazing.
  • To the first category belong the various antennas (radio, GPS, telephone ...), rain, light or similar detectors ...
  • To the second category belong the various systems capable of monitoring the operation of certain elements such as heating glazing, the control of electrical control means for controlling the light transmission.
  • the first condition is of course to fulfill their function satisfactorily by not disturbing that of the other neighboring elements, including the fundamental one of the windshield itself which must offer the best possible vision.
  • the sensors must be located in locations which not only guarantee that they can function satisfactorily, but also which do not reduce the visual field or introduce distortions thereof.
  • the sensors are preferably of dimensions as small as their function allows.
  • the invention relates to sensors bonded to glazing and in particular to automobile windshields. More particularly, the invention relates to sensors of the rain detector type or the like, for which the signals which they pick up are transmitted through the glazing. This implies that the sensor support does not come between the glazing and the sensor itself. For this reason, the supports are made up of elements located on the periphery of the sensor.
  • the fixing of these sensors was done according to the experience acquired for the fixing of the first elements which were fixed on the windshields, namely the bases of mirrors.
  • the fixing of the mirrors requires a particular resistance taking into account the efforts supported during use.
  • Each movement of the mirror subjects the base and its attachment to relatively large pulls.
  • the base on which the mirror base was fixed must therefore be particularly rigid. It also had to adhere to the glazing strongly and permanently.
  • Typical alloys are, for example, zinc-based alloys such as that known as "ZAMAC". Supports have therefore been produced in these materials to fix in particular the rain sensors. In practice, it turns out that current supports are largely unsuitable.
  • the surface available for sticking these supports to the glazing must be as small as possible. Most of the surface occupied by the sensor is obviously intended for the transmission of the signal received. In the initial embodiments, the sensor is most often fixed a surrounding or support frame, relatively narrow so as not to increase the total area of the sensor on the glazing. The limited surface area and the weight of the support mean that an insufficiently solid bonding is observed.
  • the invention proposes on the one hand to improve the constituents used as support for the sensors, and on the other hand, to simplify the operations of implementation of these supports and ancillary elements.
  • the sensor support of the rain detector type which requires placing the sensor so that it receives the signals through the glazing, consists of an element surrounding the sensor, closing continuously.
  • the support according to the invention thus formed has better dimensional rigidity although of relatively small section compared to its largest dimensions due to its closed shape.
  • a typical shape is that of a ring overall.
  • the support can be made of a less rigid material than that of the previous supports. Consequently, it is also possible, according to the invention, to lighten this support and, consequently, to have a bonding on the glazing also lighter. Taking advantage of these features, it is possible, if necessary, to constitute the support in the material of the chute. In this way it is still possible according to the invention to constitute in a single piece, the sensor support and the chute intended to receive the conductors. The grouping of several pieces in one, reduces the stocks referenced, and especially reduces the operations of installation on the glazing.
  • the well-known semi-rigid synthetic materials are generally suitable for constituting the supports according to the invention.
  • moldable materials are used. They have the advantage of being relatively easy to use, and like all polymeric materials, are much lighter than metal alloys, and do not raise any corrosion problem.
  • copolymers of the acrylonitrile-butadiene styrene type or any other moldable product leading to relatively rigid products are used.
  • the constituents are chosen to be of the same kind as those of other elements such as the chutes receiving the conductors. By choosing identical materials, it is possible to combine several elements in one piece.
  • FIG. 1 is a partial view of a windshield having a provision of the prior art for the establishment of a sensor
  • FIG. 1 is a plan view of a front sensor support
  • - Figure 3 is a plan view of a sensor support according to the invention
  • - Figure 4 is a plan view of a sensor support according to the invention, comprising a chute
  • - Figure 5 is a side view corresponding to the support of Figure 4.
  • the part of the windshield shown in Figure 1 is located in the upper and middle part, part which traditionally receives the base of the mirror. This part includes several areas coated with enamel intended to hide from the outside the elements fixed to the windshield. Where appropriate as shown, the enamel is placed in a first zone 1 continuously, excluding the reserves such as 2, to maintain the light transmission necessary for certain sensors such as that intended to detect rain. In this zone 2 there is no enamel. Zone 1 can be extended by one second, in which the enamel is applied discontinuously in the form of dots. This procedure is traditionally intended to mark a transition between the continuous zone 1, and the uncoated glass 4.
  • the glazing comprises layers of conductive type, it is possibly necessary to clear an area, as in 3, to guarantee the functioning of sensors operating on the basis of radiometric waves.
  • FIG. 1 the location of the mirror base is marked in 5..
  • the support of a traditional rain detector is shown in 6.
  • the support in question consists of an element which in this example is of incomplete annular shape.
  • the support 6 is glued to the windshield in the same way as the rear view mirror.
  • a chute 7 intended to receive the conductors of the sensor is also bonded to the windshield. Given the low mass of the chute and the conductors it receives, a lighter adhesive is often sufficient.
  • a double-sided adhesive material previously applied to the back of the chute, so that the installation of the chute consists of applying it on the windshield after removing the film that protects the adhesive attached to the chute.
  • the support 6 and the chute 7 are separated. They are made of different materials and applied separately.
  • the support 6 is made of a metallic alloy of "ZAMAC", an alloy based on zinc and less aluminum, and whose density is of the order of 6 g / cm 3 . This material apart from the fact that it is relatively heavy, is very rigid which guarantees that the support remains stable in dimensions even when the sensor is inserted to be clipped to it.
  • the chute is much lighter. It is formed from a U-shaped profile.
  • a typical material for the manufacture of the chute is a moldable polymer such as ABS material.
  • the lightness of the chute facilitates its attachment to the windshield. Possibly it is known to have parts on the walls of the trough in which, locally, the branches of the U are interrupted to facilitate the conformation of the trough to the curved profile of the windshield.
  • the support 6 and the chute are applied separately with a certain precision.
  • the sensor is then fixed on its support as indicated above, by clipping.
  • the conductors and the connector connecting the sensor to the control members are then put in place.
  • Finally the assembly is covered with a cover which conceals the sensor, the sensor support, the chute and the electrical conductors inside the vehicle.
  • the cover is usually made of the same material as the chute, and is clipped onto the latter and onto the sensor support.
  • the sensor support of the prior art is shown in Figure 2 on the side which is applied to the windshield.
  • This support comprises an annular band 8 delimited inwards by a rib 9.
  • the provision aims on the one hand to avoid uneven crushing of the bead of adhesive which is applied to the band 8, and on the other hand, prevents the glue overflowing inward in areas of the windshield not coated with enamel.
  • the rib is relatively low. A few tenths of a millimeter is a usual measurement.
  • the support also includes a rebate 10 set back relative to the plane of the strip 8, a rebate on which the sensor rests. The latter is still centered by means of the studs 11 which ensure precise positioning on the glazing.
  • the support shown in Figure 3 is of similar construction to that of the traditional support with regard to the provisions relating to the fixing on the glazing, and those of fixing the sensor.
  • the ends of the annular support are joined by a bridge 12 whose shape is partly determined by that of the connector which is connected to the sensor. In the form presented, this leads to spreading the connection part from the annular part proper. This part 13 is carried beyond the connection area under the conductors.
  • the presence of the bridge 12 according to the invention makes it possible to use a support made of a material having less rigidity than that of the previous supports not having the risk of seeing the ends of the annular support move apart.
  • FIG. 4 shows an embodiment of the support of the previous type, in which the chute intended to receive the conductors is in one piece with the part receiving the sensor.
  • Figure 5 shows how these two parts are brought together.
  • the chute has parts on which it is composed only of the sole 15 resting on the windshield.
  • the same type of connection 16 is made between the body of the sensor support and the chute, giving the assembly the desired flexibility.

Abstract

The invention concerns fixing sensor elements for controlling functions located behind motor vehicle glazing. More particularly, the invention concerns a support for fixing a sensor on a motor vehicle glazing, receiving data by light transmission through the glazing, the support being located around the sensor, whereby the support enclosing the sensor has a generally continuous annular shape.

Description

Fixation de capteurs sur vitrages automobiles Attaching sensors to automotive glass
L'invention est relative à la fixation d'éléments du type capteur destiné à piloter des fonctions, capteurs qui sont placés derrière des vitrages automobiles.The invention relates to the attachment of elements of the sensor type intended to control functions, sensors which are placed behind automobile windows.
Des capteurs typiques sont destinés à recevoir des signaux en provenance de l'extérieur du véhicule ou suivent le fonctionnement d'éléments solidaires de ce vitrage. A la première catégorie appartiennent les antennes diverses (radio, GPS, téléphone...), les détecteurs de pluie, de lumière ou analogue... A la seconde catégories appartiennent les systèmes variés susceptibles de suivre le fonctionnement de certains éléments comme le chauffage du vitrage, la commande de moyens électro-commandes de contrôle de la transmission lumineuse.Typical sensors are intended to receive signals from outside the vehicle or monitor the operation of elements integral with this glazing. To the first category belong the various antennas (radio, GPS, telephone ...), rain, light or similar detectors ... To the second category belong the various systems capable of monitoring the operation of certain elements such as heating glazing, the control of electrical control means for controlling the light transmission.
Tous ces capteurs portés par les vitrages, et en particulier par les pare-brise doivent satisfaire à des conditions rigoureuses.All these sensors carried by the glazing, and in particular by the windshields must meet stringent conditions.
La première condition est bien entendu de remplir leur fonction de façon satisfaisante en ne perturbant pas celle des autres éléments avoisinants, y compris celle fondamentale du pare-brise lui-même qui doit offrir la meilleure vision possible. Dans ce sens les capteurs doivent être localisés dans des emplacements qui non seulement leur garantissent de pouvoir fonctionner de manière satisfaisante, mais encore, qui ne réduisent pas le champ visuel ou introduisent des distorsions de celui- ci.The first condition is of course to fulfill their function satisfactorily by not disturbing that of the other neighboring elements, including the fundamental one of the windshield itself which must offer the best possible vision. In this sense, the sensors must be located in locations which not only guarantee that they can function satisfactorily, but also which do not reduce the visual field or introduce distortions thereof.
Compte tenu de cette première contrainte il va de soi que les capteurs sont de préférence de dimensions aussi petites que leur fonction le permet.Given this first constraint, it goes without saying that the sensors are preferably of dimensions as small as their function allows.
Hors leur encombrement, les capteurs en question doivent encore être fixés sans risquer de fragiliser le vitrage sur lequel ils sont fixés. Si ils doivent offrir une solidité certaine pour ne pas risquer d'être endommagés, soit au cours de leur mise en place, soit ultérieurement, ils est préféré de leur conférer une certaine légèreté pour ne pas surcharger le vitrage qui les porte. L'invention concerne les capteurs collés sur les vitrages et notamment sur les pare -brise automobiles. Plus particulièrement l'invention concerne les capteurs du type détecteur de pluie ou analogues, pour lesquels les signaux qu'ils captent sont transmis à travers le vitrage. Ceci implique que le support du capteur ne s'interpose pas entre le vitrage et le capteur lui-même. Pour cette raison les supports sont constitués d'éléments situés sur le pourtour du capteur.Apart from their size, the sensors in question must still be fixed without risking weakening the glazing on which they are fixed. If they must offer a certain solidity so as not to risk being damaged, either during their installation, or later, they are preferred to give them a certain lightness so as not to overload the glazing which carries them. The invention relates to sensors bonded to glazing and in particular to automobile windshields. More particularly, the invention relates to sensors of the rain detector type or the like, for which the signals which they pick up are transmitted through the glazing. This implies that the sensor support does not come between the glazing and the sensor itself. For this reason, the supports are made up of elements located on the periphery of the sensor.
Lors de leur développement initial, la fixation de ces capteurs s'est faite selon l'expérience acquise pour la fixation des premiers éléments qui ont été fixés sur les pare-brise, à savoir les embases de rétroviseurs. La fixation des rétroviseurs nécessite une résistance particulière compte tenu des efforts supportés au cours de l'utilisation. Chaque mouvement du rétroviseur soumet l'embase et sa fixation à des tractions relativement importantes. Pour garantir une fixation satisfaisante, l'embase sur laquelle venait se fixer le pied du rétroviseur devait donc être particulièrement rigide. Elle devait aussi adhérer au vitrage de manière forte et permanente.During their initial development, the fixing of these sensors was done according to the experience acquired for the fixing of the first elements which were fixed on the windshields, namely the bases of mirrors. The fixing of the mirrors requires a particular resistance taking into account the efforts supported during use. Each movement of the mirror subjects the base and its attachment to relatively large pulls. To guarantee satisfactory fixing, the base on which the mirror base was fixed must therefore be particularly rigid. It also had to adhere to the glazing strongly and permanently.
Pour les raisons indiquées le choix du matériau de l'embase s'est porté sur des alliages métalliques rigides, et commodément moulables pour faciliter leur fabrication. Des alliages typiques sont par exemple des alliages à base de zinc tel que celui dénommé « ZAMAC ». Des supports ont donc été réalisés dans ces matériaux pour fixer notamment les capteurs de pluie. En pratique, il s'avère que les supports actuels sont largement inadaptés.For the reasons indicated, the choice of base material was made of rigid metal alloys, which are conveniently moldable to facilitate their manufacture. Typical alloys are, for example, zinc-based alloys such as that known as "ZAMAC". Supports have therefore been produced in these materials to fix in particular the rain sensors. In practice, it turns out that current supports are largely unsuitable.
La rigidité dans ce cas conduit à un élément qui s'avère trop pesant compte tenu des sollicitations limitées auxquelles sont soumis ces capteurs une fois qu'ils ont été installés. Leur poids est surtout gênant pour l'inertie supplémentaire appliquée sur le pare-brise. Ces alliages en outre présentent une certaine corrosivité pour les éléments au contact desquels ils se trouvent.The rigidity in this case leads to an element which proves to be too heavy taking into account the limited stresses to which these sensors are subjected once they have been installed. Their weight is especially troublesome for the additional inertia applied to the windshield. These alloys moreover exhibit a certain corrosivity for the elements in contact with which they are found.
Une autre difficulté vient de ce que la surface disponible pour coller ces supports sur le vitrage doit être aussi réduite que possible. La majeure partie de la surface occupée par le capteur est bien évidemment destinée à la transmission du signal capté. Dans les réalisations initiales le capteur est ainsi le plus souvent fixé d'un entourage ou cadre support, relativement étroit pour ne pas accroître la surface totale du capteur sur le vitrage. La surface restreinte et le poids du support font qu'il arrive que l'on constate un collage insuffisamment solide.Another difficulty comes from the fact that the surface available for sticking these supports to the glazing must be as small as possible. Most of the surface occupied by the sensor is obviously intended for the transmission of the signal received. In the initial embodiments, the sensor is most often fixed a surrounding or support frame, relatively narrow so as not to increase the total area of the sensor on the glazing. The limited surface area and the weight of the support mean that an insufficiently solid bonding is observed.
Un inconvénient supplémentaire à l'utilisation de tels supports, vient de la multiplicité des éléments constitutifs qu'ils impliquent. Le support est dans un matériau différent de celui du capteur, de celui du connecteur reliant ce capteur aux conducteurs qui relient le capteur aux organes de traitement du signal, ou de celui des goulottes qui enveloppent ces conducteurs. Cette diversité implique que ces divers éléments doivent être stockés et surtout mis en place individuellement, compliquant de ce fait l'ensemble de l'opération.An additional disadvantage to the use of such supports, comes from the multiplicity of the constituent elements which they imply. The support is made of a material different from that of the sensor, from that of the connector connecting this sensor to the conductors which connect the sensor to the signal processing members, or from that of the chutes which surround these conductors. This diversity implies that these various elements must be stored and above all put in place individually, thereby complicating the whole operation.
L'invention se propose d'une part d'améliorer les constituants utilisés comme support des capteurs, et d'autre part, de simplifier les opérations de mise en oeuvre de ces supports et éléments annexes.The invention proposes on the one hand to improve the constituents used as support for the sensors, and on the other hand, to simplify the operations of implementation of these supports and ancillary elements.
Selon l'invention le support de capteur, du type détecteur de pluie qui nécessite de placer le capteur de telle sorte qu'il reçoive les signaux à travers le vitrage, est constitué d'un élément entourant le capteur, se refermant sans discontinuité.According to the invention, the sensor support, of the rain detector type which requires placing the sensor so that it receives the signals through the glazing, consists of an element surrounding the sensor, closing continuously.
Le support selon l'invention ainsi constitué présente une meilleure rigidité dimensionnelle bien que de section relativement faible par rapport à ses plus grandes dimensions en raison de sa forme refermée. Une forme typique est celle globalement d'un anneau.The support according to the invention thus formed has better dimensional rigidity although of relatively small section compared to its largest dimensions due to its closed shape. A typical shape is that of a ring overall.
Par rapport aux modes antérieurs dans lesquels l'entourage du capteur formait un entourage non refermé, celui selon l'invention présente par sa structure une meilleure rigidité. Il n'est pratiquement pas possible de modifier les dimensions dans un plan parallèle à celui du vitrage sur lequel le capteur vient s'appliquer. Il est aussi difficile de gauchir ce support hors de ce même plan, avant fixation sur le vitrage.Compared to previous modes in which the surrounding of the sensor formed an uncovered surrounding, that according to the invention has, by its structure, better rigidity. It is practically not possible to modify the dimensions in a plane parallel to that of the glazing on which the sensor is applied. It is also difficult to warp this support outside of this same plane, before fixing to the glazing.
En conséquence de cette particularité, le support peut être constitué d'un matériau moins rigide que celui des supports antérieurs. En conséquence encore, il est possible, selon l'invention, d'alléger ce support et, par suite, d'avoir un collage sur le vitrage également plus léger. Mettant à profit ces particularités, il est possible le cas échéant, de constituer le support dans le matériau de la goulotte. De cette façon il est encore possible selon l'invention de constituer en une pièce unique, le support du capteur et la goulotte destinée à recevoir les conducteurs. Le regroupement de plusieurs pièces en une seule, réduit les stocks référencés, et surtout réduit les opérations de mise en place sur le vitrage.As a consequence of this feature, the support can be made of a less rigid material than that of the previous supports. Consequently, it is also possible, according to the invention, to lighten this support and, consequently, to have a bonding on the glazing also lighter. Taking advantage of these features, it is possible, if necessary, to constitute the support in the material of the chute. In this way it is still possible according to the invention to constitute in a single piece, the sensor support and the chute intended to receive the conductors. The grouping of several pieces in one, reduces the stocks referenced, and especially reduces the operations of installation on the glazing.
Les matériaux synthétiques semi-rigide bien connus conviennent dans l'ensemble pour constituer les supports selon l'invention. On utilise avantageusement des matériaux moulables. Ils présentent l'avantage d'être relativement faciles à mettre en oeuvre, et comme tous les matériaux polymères, sont beaucoup plus légers que les alliages métalliques, et ne soulèvent pas de problème de corrosion.The well-known semi-rigid synthetic materials are generally suitable for constituting the supports according to the invention. Advantageously, moldable materials are used. They have the advantage of being relatively easy to use, and like all polymeric materials, are much lighter than metal alloys, and do not raise any corrosion problem.
On utilise par exemple des copolymères du type acrylonitrile-butadiène styrène ou tout autre produit moulable conduisant à des produits relativement rigides.For example, copolymers of the acrylonitrile-butadiene styrene type or any other moldable product leading to relatively rigid products are used.
Si l'on veut conférer une rigidité supplémentaire au support il est encore possible d'armer celui-ci, au moins sur une partie, au moyen d'une âme métallique. Le plus souvent, il n'est pas nécessaire d'introduire une telle armature, qui par ailleurs rend plus compliquée la confection du support. Avantageusement les constituants sont choisis de même nature que ceux d'autres éléments comme les goulottes recevant les conducteurs. En choisissant des matériaux identiques, il est possible de rassembler plusieurs éléments en une seule pièce.If we want to give additional rigidity to the support it is still possible to arm it, at least on a part, by means of a metallic core. Most often, it is not necessary to introduce such a frame, which moreover makes it more complicated to make the support. Advantageously, the constituents are chosen to be of the same kind as those of other elements such as the chutes receiving the conductors. By choosing identical materials, it is possible to combine several elements in one piece.
L'invention est décrite de manière plus détaillée en faisant référence aux planches de dessins dans lesquelles :The invention is described in more detail with reference to the drawing boards in which:
- la figure 1 est une vue partielle d'un pare-brise présentant une disposition de l'art antérieur pour la mise en place d'un capteur ;- Figure 1 is a partial view of a windshield having a provision of the prior art for the establishment of a sensor;
- la figure 2 est une vue en plan d'un support de capteur antérieur ;- Figure 2 is a plan view of a front sensor support;
- la figure 3 est une vue en plan d'un support de capteur selon l'invention ; - la figure 4 est une vue en plan d'un support de capteur selon l'invention, comprenant une goulotte ; - la figure 5 est une vue de côté correspondant au support de la figure 4. La partie du pare-brise représentée à la figure 1 se situe dans la partie haute et médiane, partie qui traditionnellement reçoit l'embase du rétroviseur. Cette partie comporte plusieurs zones revêtues d'émail destinées à masquer de l'extérieur les éléments fixés sur le pare-brise. Le cas échéant comme représenté, l'émail est disposé dans une première zone 1 de manière continue à l'exclusion des réserves telle que 2, pour maintenir la transmission lumineuse nécessaire à certains capteurs comme celui destiné à détecter la pluie. Dans cette zone 2 il n'y a pas d'émail. La zone 1 peut être prolongée d'une seconde, dans laquelle l'émail est appliqué de manière discontinue sous forme de points. Cette façon de procéder est traditionnellement destinée à marquer une transition entre la zone continue 1, et le verre non revêtu 4. Par ailleurs, lorsque le vitrage comporte des couches de type conductrice, il est éventuellement nécessaire de dégager une zone, comme en 3, pour garantir le fonctionnement de capteurs fonctionnant à base d'ondes radiomètriques.- Figure 3 is a plan view of a sensor support according to the invention; - Figure 4 is a plan view of a sensor support according to the invention, comprising a chute; - Figure 5 is a side view corresponding to the support of Figure 4. The part of the windshield shown in Figure 1 is located in the upper and middle part, part which traditionally receives the base of the mirror. This part includes several areas coated with enamel intended to hide from the outside the elements fixed to the windshield. Where appropriate as shown, the enamel is placed in a first zone 1 continuously, excluding the reserves such as 2, to maintain the light transmission necessary for certain sensors such as that intended to detect rain. In this zone 2 there is no enamel. Zone 1 can be extended by one second, in which the enamel is applied discontinuously in the form of dots. This procedure is traditionally intended to mark a transition between the continuous zone 1, and the uncoated glass 4. Furthermore, when the glazing comprises layers of conductive type, it is possibly necessary to clear an area, as in 3, to guarantee the functioning of sensors operating on the basis of radiometric waves.
Sur la figure 1, l'emplacement de l'embase du rétroviseur est marqué en 5. . Le support d'un détecteur de pluie traditionnel est représenté en 6. Le support en question est constitué d'un élément qui dans cet exemple est de forme annulaire incomplète. Le support 6 est collé sur le pare -brise de la même manière que le rétroviseur. Avant la pose du capteur lui-même sur son support, une goulotte 7 destinée à recevoir les conducteurs du capteur est également collée sur le pare- brise. Compte tenu de la faible masse de la goulotte et des conducteurs qu'elle reçoit, un adhésif plus léger est souvent suffisant. On utilise par commodité de préférence un matériau adhésif double face préalablement appliqué sur le dos de la goulotte, de telle sorte que la pose de la goulotte consiste en l'application de celle-ci sur le pare-brise après qu'on ait enlevé le film qui protège l'adhésif fixé à la goulotte.In Figure 1, the location of the mirror base is marked in 5.. The support of a traditional rain detector is shown in 6. The support in question consists of an element which in this example is of incomplete annular shape. The support 6 is glued to the windshield in the same way as the rear view mirror. Before installing the sensor itself on its support, a chute 7 intended to receive the conductors of the sensor is also bonded to the windshield. Given the low mass of the chute and the conductors it receives, a lighter adhesive is often sufficient. For convenience, preferably using a double-sided adhesive material previously applied to the back of the chute, so that the installation of the chute consists of applying it on the windshield after removing the film that protects the adhesive attached to the chute.
Dans l'exemple antérieur le support 6 et la goulotte 7 sont disjoints. Ils sont constitués de matériaux différents et appliqués séparément. Le support 6 est en un alliage métallique de « ZAMAC », alliage à base de zinc et de façon moindre d'aluminium, et dont la masse volumique est de l'ordre de 6g/cm3. Ce matériau en dehors du fait qu'il est relativement pesant, est très rigide ce qui garantit que le support reste stable en dimensions même lorsque le capteur est introduit pour y être clipsé.In the previous example, the support 6 and the chute 7 are separated. They are made of different materials and applied separately. The support 6 is made of a metallic alloy of "ZAMAC", an alloy based on zinc and less aluminum, and whose density is of the order of 6 g / cm 3 . This material apart from the fact that it is relatively heavy, is very rigid which guarantees that the support remains stable in dimensions even when the sensor is inserted to be clipped to it.
La goulotte est beaucoup plus légère. Elle est formée d'un profilé en U. Un matériau typique pour la fabrication de la goulotte est un polymère moulable tel qu'un matériau ABS. La légèreté de la goulotte facilite sa fixation sur le pare-brise. Eventuellement il est connu de disposer sur les parois de la goulotte des parties dans lesquelles, localement, les branches du U sont interrompues pour faciliter la conformation de la goulotte au profil galbé du pare -brise.The chute is much lighter. It is formed from a U-shaped profile. A typical material for the manufacture of the chute is a moldable polymer such as ABS material. The lightness of the chute facilitates its attachment to the windshield. Possibly it is known to have parts on the walls of the trough in which, locally, the branches of the U are interrupted to facilitate the conformation of the trough to the curved profile of the windshield.
Dans cette construction le support 6 et la goulotte sont appliqués séparément avec une certaine précision. Le capteur est ensuite fixé sur son support comme indiqué précédemment, par clipsage. Les conducteurs et le connecteur raccordant le capteur aux organes de commande, sont ensuite mis en place. Enfin l'ensemble est recouvert d'un cache qui dissimule le capteur, le support de capteur, la goulotte et les conducteurs électriques à l'intérieur du véhicule. Le cache est ordinairement constitué du même matériau que la goulotte, et est clipsé sur cette dernière et sur le support de capteur.In this construction the support 6 and the chute are applied separately with a certain precision. The sensor is then fixed on its support as indicated above, by clipping. The conductors and the connector connecting the sensor to the control members are then put in place. Finally the assembly is covered with a cover which conceals the sensor, the sensor support, the chute and the electrical conductors inside the vehicle. The cover is usually made of the same material as the chute, and is clipped onto the latter and onto the sensor support.
Le support de capteur de l'art antérieur est présenté à la figure 2 sur la face qui est appliquée sur le pare -brise. Ce support comprend une bande annulaire 8 délimitée vers l'intérieur par une nervure 9. La disposition vise d'une part à éviter l'écrasement inégal du cordon de colle qui est appliqué sur la bande 8, et d'autre part, empêche la colle de déborder vers l'intérieur dans les zones du pare -brise non revêtues d'émail. Pour cela la nervure est relativement de faible hauteur. Quelques dixièmes de millimètres sont une mesure habituelle. Le support comporte encore une feuillure 10 en retrait par rapport au plan de la bande 8, feuillure sur laquelle vient s'appuyer le capteur. Ce dernier est encore centré au moyen des plots 11 qui assurent un positionnement précis sur le vitrage.The sensor support of the prior art is shown in Figure 2 on the side which is applied to the windshield. This support comprises an annular band 8 delimited inwards by a rib 9. The provision aims on the one hand to avoid uneven crushing of the bead of adhesive which is applied to the band 8, and on the other hand, prevents the glue overflowing inward in areas of the windshield not coated with enamel. For this, the rib is relatively low. A few tenths of a millimeter is a usual measurement. The support also includes a rebate 10 set back relative to the plane of the strip 8, a rebate on which the sensor rests. The latter is still centered by means of the studs 11 which ensure precise positioning on the glazing.
Le support représenté à la figure 3 est de construction analogue à celle du support traditionnel pour ce qui concerne les dispositions relatives à la fixation sur le vitrage, et celles de fixation du capteur. Dans la construction selon l'invention, les extrémités du support de forme annulaire sont réunies par un pont 12 dont la forme est déterminée en partie par celle du connecteur qui vient se raccorder au capteur. Dans la forme présentée, ceci conduit à écarter la partie de raccord de la partie annulaire proprement dite. Cette partie 13 est reportée au-delà de la zone de connexion sous les conducteurs.The support shown in Figure 3 is of similar construction to that of the traditional support with regard to the provisions relating to the fixing on the glazing, and those of fixing the sensor. In the construction according to the invention, the ends of the annular support are joined by a bridge 12 whose shape is partly determined by that of the connector which is connected to the sensor. In the form presented, this leads to spreading the connection part from the annular part proper. This part 13 is carried beyond the connection area under the conductors.
La présence du pont 12 selon l'invention, rend possible l'utilisation d'un support en un matériau présentant une rigidité moindre que celle des supports antérieurs n'ayant pas le risque de voir s'écarter les extrémités du support annulaire.The presence of the bridge 12 according to the invention makes it possible to use a support made of a material having less rigidity than that of the previous supports not having the risk of seeing the ends of the annular support move apart.
Les matériaux synthétiques utilisés par ailleurs pour former la goulotte ou le cache goulotte deviennent ainsi utilisables. Cette possibilité offre en plus l'avantage de pouvoir constituer l'ensemble support de capteur et goulotte d'une seule pièce comme représenté à la figure 4 et à la figure 5.The synthetic materials also used to form the chute or the chute cover thus become usable. This possibility also offers the advantage of being able to constitute the sensor support and chute assembly in one piece as shown in FIG. 4 and in FIG. 5.
La figure 4 montre un exemple de réalisation du support du type précédent, dans lequel la goulotte destinée à recevoir les conducteurs est d'une seule pièce avec la partie recevant le capteur.FIG. 4 shows an embodiment of the support of the previous type, in which the chute intended to receive the conductors is in one piece with the part receiving the sensor.
La figure 5 montre la façon dont sont réunies ces deux parties. Pour garantir une certaine flexibilité à l'ensemble dans la longueur qui doit se conformer à un certain galbe du pare -brise, la goulotte comporte des parties sur lesquelles elle n'est composée que de la semelle 15 reposant sur le pare-brise. Le même type de raccordement 16 est réalisé entre le corps du support de capteur et la goulotte, conférant à l'ensemble la flexibilité souhaitée. Figure 5 shows how these two parts are brought together. To guarantee a certain flexibility to the assembly in the length which must conform to a certain curve of the windshield, the chute has parts on which it is composed only of the sole 15 resting on the windshield. The same type of connection 16 is made between the body of the sensor support and the chute, giving the assembly the desired flexibility.

Claims

REVENDICATIONS
1 Support de fixation de capteur sur vitrage automobile, recevant les informations par transmission lumineuse à travers le vitrage, le support étant situé autour du capteur, dans lequel le support entourant le capteur est de forme générale annulaire sans discontinuité. 2 Support de fixation de capteur sur vitrage automobile selon la revendication 1 dans lequel le capteur est entouré sur la majeure partie par le support, le complément formant un pont reliant les extrémités de la partie entourant le capteur.1 Sensor mounting support on automobile glazing, receiving the information by light transmission through the glazing, the support being located around the sensor, in which the support surrounding the sensor is generally annular in shape without discontinuity. 2 sensor mounting support on automotive glass according to claim 1 wherein the sensor is surrounded on the major part by the support, the complement forming a bridge connecting the ends of the part surrounding the sensor.
3 Support de fixation de capteur sur vitrage automobile selon la revendication 2, dans lequel la partie formant un pont se situe dans le plan du support en contact avec le vitrage, laissant dégagé un passage pour les conducteurs reliés au capteur.3 sensor mounting support on automobile glazing according to claim 2, wherein the portion forming a bridge is located in the plane of the support in contact with the glazing, leaving a passage for the conductors connected to the sensor.
4 Support de fixation de capteur sur vitrage automobile selon l'une des revendications précédentes, lequel constitue une pièce unique avec la goulotte recevant les conducteurs du capteur qui se situe le long du vitrage.4 sensor mounting support on automobile glazing according to one of the preceding claims, which constitutes a single piece with the chute receiving the conductors of the sensor which is located along the glazing.
5 Support de fixation de capteur sur vitrage automobile selon l'une des revendications précédentes, lequel est constitué d'un matériau polymère.5 sensor mounting bracket on automotive glass according to one of the preceding claims, which is made of a polymeric material.
6 Support de fixation de capteur sur vitrage automobile selon la revendication 5 lequel est constitué en matériau synthétique ABS (copolymère acrylonitrile-butadiène-styrène) . 6 sensor mounting support on automotive glass according to claim 5 which is made of ABS synthetic material (acrylonitrile-butadiene-styrene copolymer).
PCT/EP2002/012621 2001-11-09 2002-11-07 Fixing sensors on motor vehicle glazing WO2003041977A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02791673A EP1446300A2 (en) 2001-11-09 2002-11-07 Fixing sensors on motor vehicle glazing

Applications Claiming Priority (2)

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BE2001/0727 2001-11-09
BE2001/0727A BE1014469A6 (en) 2001-11-09 2001-11-09 Sensors mounting car windows.

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BE1014469A6 (en) 2003-11-04
EP1446300A2 (en) 2004-08-18

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