EP0671864A2 - Abdichtung für eine elektrische Verbindung einer Glasscheibe - Google Patents

Abdichtung für eine elektrische Verbindung einer Glasscheibe Download PDF

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Publication number
EP0671864A2
EP0671864A2 EP95400436A EP95400436A EP0671864A2 EP 0671864 A2 EP0671864 A2 EP 0671864A2 EP 95400436 A EP95400436 A EP 95400436A EP 95400436 A EP95400436 A EP 95400436A EP 0671864 A2 EP0671864 A2 EP 0671864A2
Authority
EP
European Patent Office
Prior art keywords
glazing
seal
electrical
conductor
electrical conductor
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.)
Granted
Application number
EP95400436A
Other languages
English (en)
French (fr)
Other versions
EP0671864B1 (de
EP0671864B2 (de
EP0671864A3 (de
Inventor
Gérard Huchet
Martial De Paoli
Denis Mathivat
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.)
Saint Gobain Glass France SAS
Original Assignee
Saint Gobain Vitrage SA
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
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Application filed by Saint Gobain Vitrage SA filed Critical Saint Gobain Vitrage SA
Publication of EP0671864A2 publication Critical patent/EP0671864A2/de
Publication of EP0671864A3 publication Critical patent/EP0671864A3/de
Publication of EP0671864B1 publication Critical patent/EP0671864B1/de
Application granted granted Critical
Publication of EP0671864B2 publication Critical patent/EP0671864B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields

Definitions

  • the invention relates to glazing requiring supply of electrical signals.
  • the invention also relates to the use of such glazing, especially on vehicles.
  • glazing In an automobile, several types of glazing require an electrical connection. These are heated, de-icing glazing, with remote-controlled optical properties or glazing having an element requiring this connection such as, for example, an antenna, sensors, etc.
  • the electrical connection usually consists of a collecting strip in electrical contact with the elements requiring this supply. It is connected at the edge of the glazing to a cable connected to a power source, as described for example in patent DE-36 04 437.
  • the electrical source or the control member is, in general, located in a zone protected from external stresses so, in the case of heated glazing, the switch which controls the defrosting is inside the passenger compartment , the same applies in the case of a brake light installed on the glazing.
  • the electrical source is a screen-printed antenna on the glazing, on its internal face, it is also in the zone protected from external stresses.
  • the device which exploits energy or electrical signals is also located in a protected area, inside the vehicle. This is the case with the screen-printed heating network of a defrosting window, this is the case with the brake light integrated into the glazing, but also, symmetrically, this is the case with the radio receiver in the passenger compartment.
  • the invention relates to the case where one of these two transitions, interior-exterior, is located in the vicinity of the glazing, the problem is particularly sensitive when the glazing is an opening glazing such as a tailgate.
  • the task of the invention is to provide glazing, the electrical supply of which will be ensured by electrical connections situated both outside and within the zone delimited by a seal, known as the sealing zone.
  • the invention must allow the transition of the electrical connection between the interior and the exterior to be carried out without allowing the penetration of water. This transition must also not interfere with the operation of the usual sealing means (seals).
  • the invention provides glazing comprising on its surface an electrical conductor in which a complementary element covers part of the conductor and imparts an absolute seal to said part of the conductor covered by this element, preferably the part of the electrical conductor is chosen from among the elements following, taken alone or in combination: conductive layer, for example deposited by screen printing, foil, flexible conductive plate, conductive filaments in the form of wires or braids, electrical connection of solder type.
  • the preferred mode for producing the element conferring an absolute seal is the overmolding of the glazing.
  • the electrical connections are temporarily kept in position for the time necessary for overmolding by any suitable means: glue, jumpers, rivets, adhesive layer, etc.
  • thermoforming unit of the invention provision is made for the element giving absolute tightness to be produced by the association of a base on which a cover is grafted.
  • the glazing of the invention is particularly suitable for the automobile.
  • the invention provides for its use on a motor vehicle, a seal being in contact with said glazing, at least when the latter is in the closed position, and then the seal covers, at least partially, the electrical conductor and the complementary element conferring an absolute seal.
  • said part of the electrical conductor is connected, on the one hand, to a cable connected to a source of current or electrical signals and, on the other hand, to a cable connected to a device using the current or signals such as defrost, brake light, radio, the two cables running on either side of the location of the seal.
  • the complementary element of the invention allows, thanks to the shape suitable for those skilled in the art, to keep the same seals as when there are no electrical conductors passing through the joint while retaining an excellent seal.
  • FIG. 1 illustrates different paths that the electrical conductors 1 can follow, on a glazing 2 of the invention.
  • the conductor can consist of the following elements, taken independently or in combination: a metallic foil, a conductive layer, at least one conductive filament, a conductive plate, a copper strip or an electrical connection of the solder type, etc.
  • Diagram 1a represents a glazing 2 whose electrical conductors 1 pass outside the zone delimited by a seal 3. This seal located either on the bodywork or on the glazing itself is in contact with it. (at least when the glazing is closed if the seal is placed on the bodywork) over an area of a certain width shown in the figure.
  • Diagram 1a represents, for example, the supply of electrical signals to an element 4 by means of a power source shown diagrammatically at 5. This element can be a brake light, a sensor, a wiper motor, etc. ...
  • Diagram 1b illustrates a heated windshield.
  • the heating network consists of thin wires of electrical heating resistance 6. Each heating wire is electrically connected to two busbars 7 and 8.
  • the busbars are, for example, made of copper foil strips coated with solder to the low melting tin. According to this diagram, the collector strips are located in the sealing zone. Connections 9 seal the passage from the sealing zone to the non-sealing zone. These connections 9 constitute the electrical conductors 1 of the heating network which connect it to a source of electrical power, not shown.
  • Diagrams 1c and 1d illustrate the passage of the electrical connections from the sealing zone to the non-sealing zone.
  • Diagram 1c represents the supply of an element 10 located in the sealing zone to a power source 11, also located in the sealing zone.
  • the electrical conductor 1 is located for the most part outside the sealing zone while ensuring the passage from one zone to the other.
  • Element 10 can be a signal light, such as a brake light, an antenna, a sensor, and the "power source" of electrical signals, for example, a lithium chemical battery or a radio signal preamplifier.
  • Diagram 1d illustrates, for its part, a heated rear window consisting of conductors made of a screen-printed silver paste 12 electrically connected to two collector strips. Cables 15 and 16 constitute the electrical conductors 1 between the heating network and an external power source, not shown. According to this diagram, the collector strips consist of a silver paste 12, deposited by screen printing, and the electrical connection provided by conductive filaments in the form of flat braids or wires 15, 16 respectively.
  • FIG. 2 shows, in more detail, the passage from the sealing zone to the non-sealing zone delimited by the zone of the sealing joint 3.
  • a profiled part 17, which constitutes the complementary element of the invention, ensures the tightness of this passage.
  • the profiled part 17 is advantageously obtained by molding or, preferably, by overmolding.
  • FIG. 3 illustrates different profiled parts which constitute complementary elements according to the invention; they are here in the form of a hat, without limitation.
  • This “soft” shape which gradually connects to the surface of the glazing makes it possible to easily ensure the seal between, on the one hand, the glazing and the part and an elastic seal on the other.
  • the profiled part 19 can cover a rectangular, elliptical surface or have lips 20 as illustrated in diagrams 3a, 3b, 3c and 3d respectively.
  • the conductor parts are here represented in the form of wires 40 (diagrams 3a, 3b and 3c) or flat conductors 21 (diagrams 3g, 3h).
  • the conductors 40, 21 are embedded in the material of the profiled part 19 and, insofar as the latter is electrically insulating, it is not necessary that, in this zone, the conductors be provided with a sheath. Such an absence of sheath prevents the (minimal) space between the sheath and the metallic core of the conductor from forming a path for moisture.
  • the profiled parts are overmolded.
  • the electrical connections can also be conductive layers 21, as illustrated in the diagrams 3g, 3h, 3i and 3j. These layers can be a silver paste deposited by screen printing or a conductive coating. According to diagrams 3i and 3j, the conductive layers 21 are housed in housings of prefabricated parts and glued to the glazing.
  • braids 41 (diagram 3d).
  • the profiled parts 19 which constitute the complementary element of the invention are in two parts, a base 22 and a cover 42.
  • the base can include lugs 23 intended to cooperate with the complementary forms 24 of the cover 42.
  • the base is fixed here by gluing to the glazing using the adhesive film 25.
  • the electric conductor part 40 included in the profiled part 19 must here also be isolated from the interior and exterior spaces (or at least from one of the two), this is why at the ends (or at one of them) , the space where the conductor is located is closed.
  • part 19 is in two parts makes it possible to separate the functions, the base maintains in place the part of electrical conductor which passes through it, the cover with an adapted external shape, allows a connection with the peripheral seal of the elastomer glazing. which is perfectly waterproof.
  • FIG. 5 represents, in more detail, a type of electrical connection at the level of the passage from the sealing zone to the non-sealing zone.
  • the electrical connections are conductive cables, the latter are not suitable for passing from one zone to another. Indeed, they generally have a relatively large thickness. Furthermore, their relatively narrow contact surface with the glazing leads to a risk of incorrect positioning which may in particular affect the tightness of the passage from one zone to the other.
  • connection at the level of said passage is thin. It is, for example, a conductive layer, a foil, a copper strip or a plate of conductive material.
  • Diagram 5a represents a part of the electrical conductor 26 consisting of a silver-based paste deposited, for example, by screen printing.
  • the cables 27 are, for example, connected by welding with silver paste.
  • Diagram 5b represents a part of electrical conductor 28 consisting of a silver-based paste onto which metallic foils 29 are welded, the cables 27 being electrically connected to this assembly.
  • This device makes it possible, in particular, to increase the electric power at the level of the link ensuring the passage from one zone to the other.
  • FIG. 6 represents an advantageous variant of the invention.
  • 30 shows an elastomer seal which is fixed to the periphery of the glazing. It has a lip 31 which can have several functions. One of them is to plug the gap between the glazing 2 and the bodywork 32.
  • this seal is a self-adhesive elastomer profile which is designed so as to incorporate conductive cables 43. The fixing of the profile to the glazing is done on the edge and one and / or the other face at the edge of the glazing, spaces being provided inside this profile for housing these connections.
  • the cables 43 are connected to the conductor part 35 consisting of a plate of flexible conductive material via an electrical connector 34.
  • the electrical wires connected to the user element of the connection are not shown in the figure, they are welded to the plate of flexible conductive material 35.
  • This plate is electrically insulated and the assembly is sealed thanks to the localized part 37 of the joint, this profiled part is advantageously obtained by means of an organized leak of the plastic material constituting the profile 30.
  • FIG. 7 represents another variant of the invention according to which the electrical conductor 1 consists solely of a collecting strip based on silver paste deposited by screen printing.
  • This strip ensures the electrical supply of the element 38 by connecting it to a power source not shown.
  • the collecting strip is located both outside and inside the sealing zone delimited by the joint 3, while ensuring the passage of electricity from one zone to the other.
  • a profiled part 39 provides part of the sealing of this strip. It preferably has a means for facilitating mounting of the glazing in the bodywork bay, in particular a lip 31, as shown in FIG. 5.
  • the collector strip can be completely protected from external stresses by the part 39. It can also, as shown, overflowing from the room.
  • the protruding part can then be covered with a coating ensuring its sealing.
  • the glazing which has just been described has many advantages.
  • the technique for carrying it out is very industrial, it makes it possible both to fix the cables at the level of the connection and to ensure the latter in a perfectly watertight manner, and this, that the glazing-bodywork sealing is obtained by gluing (FIG. 6) or using an elastomer gasket plated on the glazing or on the bodywork while it is glued on the other.

Landscapes

  • Resistance Heating (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Surface Heating Bodies (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Details Of Aerials (AREA)
EP95400436A 1994-03-08 1995-03-01 Abdichtung für eine elektrische Verbindung einer Glasscheibe Expired - Lifetime EP0671864B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402650 1994-03-08
FR9402650A FR2717339B3 (fr) 1994-03-08 1994-03-08 Etanchéité d'une liaison électrique d'un vitrage.

Publications (4)

Publication Number Publication Date
EP0671864A2 true EP0671864A2 (de) 1995-09-13
EP0671864A3 EP0671864A3 (de) 1996-07-10
EP0671864B1 EP0671864B1 (de) 2003-05-21
EP0671864B2 EP0671864B2 (de) 2006-12-27

Family

ID=9460795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400436A Expired - Lifetime EP0671864B2 (de) 1994-03-08 1995-03-01 Abdichtung für eine elektrische Verbindung einer Glasscheibe

Country Status (4)

Country Link
EP (1) EP0671864B2 (de)
JP (1) JP3445860B2 (de)
DE (1) DE69530806T3 (de)
FR (1) FR2717339B3 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10020597B2 (en) 2014-05-23 2018-07-10 Few Fahrzeugelektrikwerk Gmbh & Co. Kg Electrical connection element for fastening, in particular soldering, to a glass pane, and ribbon litz wire mixed braid
US10434846B2 (en) 2015-09-07 2019-10-08 Sabic Global Technologies B.V. Surfaces of plastic glazing of tailgates
US10597097B2 (en) 2015-09-07 2020-03-24 Sabic Global Technologies B.V. Aerodynamic features of plastic glazing of tailgates
US10690314B2 (en) 2015-09-07 2020-06-23 Sabic Global Technologies B.V. Lighting systems of tailgates with plastic glazing
US20220039208A1 (en) * 2020-07-30 2022-02-03 Min Hsiang Corporation Electrical Connecting Portion for a Device with a Heating Function
US11267173B2 (en) 2015-09-07 2022-03-08 Sabic Global Technologies B.V. Molding of plastic glazing of tailgates
US11466834B2 (en) 2015-11-23 2022-10-11 Sabic Global Technologies B.V. Lighting systems for windows having plastic glazing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856663C2 (de) * 1998-12-09 2003-04-03 Saint Gobain Sekurit D Gmbh Kontaktvorrichtung für ein an einer Fensterscheibe angeordnetes elektrisches Funktionselement
EP1160937B1 (de) * 2000-06-02 2006-12-06 Saint-Gobain Glass France Elektrisches lötbares Verbindungselement mit Lötstelle
US7180031B1 (en) * 2005-09-19 2007-02-20 Automotive Components Holdings, Llc Electrical connection in glazing operations
EP2339894A1 (de) * 2009-12-22 2011-06-29 Saint-Gobain Glass France Scheibe mit elektrischem Anschlusselement
JP6009861B2 (ja) * 2012-08-24 2016-10-19 西川ゴム工業株式会社 タッチセンサー構造体

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FR1197127A (fr) † 1958-02-28 1959-11-27 Anciens Etablissements Panhard Perfectionnements apportés aux antennes équipant les véhicules, notamment aux antennes de réception montées sur les voitures automobiles
US3484584A (en) † 1968-07-23 1969-12-16 Ppg Industries Inc Combination of electrically heated transparent window and antenna
US3760157A (en) † 1972-07-11 1973-09-18 Thermoseal Glass Corp Electrically heated window with a connector block and a circuit breaker
FR2423621A1 (fr) † 1978-04-17 1979-11-16 Saint Gobain Entree de fils electriques a l'interieur d'un vitrage multiple
DE7904441U1 (de) † 1979-02-17 1979-05-17 Hans Bernstein Spezialfabrik Fuer Schaltkontakte, 4952 Porta Westfalica Kunststoff-Klemmengehäuse
FR2475469B1 (fr) † 1981-02-03 1986-04-04 Saint Gobain Vitrage Vitrage pivotant muni d'un appareil electrique
DE3105564A1 (de) † 1981-02-16 1982-09-09 Vereinigte Glaswerke Gmbh, 5100 Aachen Alarmglasscheibe und verfahren zu ihrer herstellung
US4488033A (en) * 1982-09-23 1984-12-11 Interdynamics, Inc. Heater assembly for heating glass surface
SE446840B (sv) † 1983-12-20 1986-10-13 Saab Scania Ab Anordning vid en oppningsbar lucka pa fordon
DE3532119A1 (de) * 1985-09-10 1987-03-19 Ver Glaswerke Gmbh Elektrisch beheizbare autoglasscheibe
GB2192023B (en) * 1986-06-26 1990-01-04 Pilkington Brothers Plc An edge-encapsulated glazing module
NL8603265A (nl) * 1986-12-23 1988-07-18 Volvo Car Bv Geleiding voor een elektrische bedrading.
IT212643Z2 (it) † 1987-07-17 1989-07-23 Soc Complesso vetro-guarnizione per autoveicoli, munito di una pluralita
DE3937346A1 (de) † 1989-11-09 1991-05-16 Ver Glaswerke Gmbh Elektrisch beheizbare autoglasscheibe aus verbundglas
DE9110236U1 (de) † 1991-08-19 1991-12-19 Hans-Joachim Bernstein Compact-Gehäuse GmbH, 4955 Hille Klemmengehäuse
FR2700422B1 (fr) † 1993-01-12 1995-03-03 Saint Gobain Vitrage Int Connexion d'un vitrage à une source d'alimentation électrique.
FR2706724B1 (fr) † 1993-06-15 1997-04-30 Saint Gobain Vitrage Int Liaison électrique d'un vitrage.

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10020597B2 (en) 2014-05-23 2018-07-10 Few Fahrzeugelektrikwerk Gmbh & Co. Kg Electrical connection element for fastening, in particular soldering, to a glass pane, and ribbon litz wire mixed braid
US11458709B2 (en) 2015-09-07 2022-10-04 Sabic Global Technologies B.V. Three shot plastic tailgate
US11845240B2 (en) 2015-09-07 2023-12-19 Sabic Global Technologies B.V. Three shot plastic tailgate
US10690314B2 (en) 2015-09-07 2020-06-23 Sabic Global Technologies B.V. Lighting systems of tailgates with plastic glazing
US10717348B2 (en) 2015-09-07 2020-07-21 Sabic Global Technologies B.V. Surfaces of plastic glazing of tailgates
US10948152B2 (en) 2015-09-07 2021-03-16 Sabic Global Technologies B.V. Lighting systems of tailgates with plastic glazing
US12390967B2 (en) 2015-09-07 2025-08-19 Sabic Global Technologies B.V. Molding of plastic glazing of tailgates
US10597097B2 (en) 2015-09-07 2020-03-24 Sabic Global Technologies B.V. Aerodynamic features of plastic glazing of tailgates
US12330397B2 (en) 2015-09-07 2025-06-17 Sabic Global Technologies B.V. Three shot plastic tailgate
US11267173B2 (en) 2015-09-07 2022-03-08 Sabic Global Technologies B.V. Molding of plastic glazing of tailgates
US10434846B2 (en) 2015-09-07 2019-10-08 Sabic Global Technologies B.V. Surfaces of plastic glazing of tailgates
US11766965B2 (en) 2015-11-23 2023-09-26 Sabic Global Technologies B.V. Illuminated graphic in an automotive plastic glazing
US12145498B2 (en) 2015-11-23 2024-11-19 Sabic Global Technologies B.V. Illuminated graphic in an automotive plastic glazing
US11466834B2 (en) 2015-11-23 2022-10-11 Sabic Global Technologies B.V. Lighting systems for windows having plastic glazing
US11889596B2 (en) * 2020-07-30 2024-01-30 Min Hsiang Corporation Electrical connecting portion for a device with a heating function
US20220039208A1 (en) * 2020-07-30 2022-02-03 Min Hsiang Corporation Electrical Connecting Portion for a Device with a Heating Function

Also Published As

Publication number Publication date
JP3445860B2 (ja) 2003-09-08
DE69530806T2 (de) 2004-04-08
EP0671864B1 (de) 2003-05-21
JPH0850933A (ja) 1996-02-20
DE69530806T3 (de) 2007-07-12
EP0671864B2 (de) 2006-12-27
EP0671864A3 (de) 1996-07-10
FR2717339B3 (fr) 1996-05-24
FR2717339A1 (fr) 1995-09-15
DE69530806D1 (de) 2003-06-26

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