EP0477069A2 - Electrical connection element for a heated vehicle window - Google Patents

Electrical connection element for a heated vehicle window Download PDF

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Publication number
EP0477069A2
EP0477069A2 EP91402429A EP91402429A EP0477069A2 EP 0477069 A2 EP0477069 A2 EP 0477069A2 EP 91402429 A EP91402429 A EP 91402429A EP 91402429 A EP91402429 A EP 91402429A EP 0477069 A2 EP0477069 A2 EP 0477069A2
Authority
EP
European Patent Office
Prior art keywords
electrical connection
connection element
brazed
segment
braid
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
EP91402429A
Other languages
German (de)
French (fr)
Other versions
EP0477069B1 (en
EP0477069A3 (en
Inventor
Manfred Börger
Heiner Emonts
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.)
Vegla Vereinigte Glaswerke GmbH
Saint Gobain Glass France SAS
Saint Gobain Vitrage SA
Original Assignee
Vegla Vereinigte Glaswerke GmbH
Saint Gobain Vitrage SA
Saint Gobain Vitrage International 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6857737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0477069(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vegla Vereinigte Glaswerke GmbH, Saint Gobain Vitrage SA, Saint Gobain Vitrage International SA filed Critical Vegla Vereinigte Glaswerke GmbH
Publication of EP0477069A2 publication Critical patent/EP0477069A2/en
Publication of EP0477069A3 publication Critical patent/EP0477069A3/en
Application granted granted Critical
Publication of EP0477069B1 publication Critical patent/EP0477069B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • 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
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the present invention relates to an electrical connection element to be brazed onto a conductive layer disposed on a glazing, in particular an electrically heated automotive glazing, consisting of a flexible metal braid segment, of a plug mounted on one of the ends of the braid and a brazing connection piece mounted on its other end.
  • connection elements provided with a connection piece to be brazed and a plug-in tab are used in great number in heated rear windows for automobiles, in which the heating resistors are applied by screen printing on the surface of the glazing, in the form of a baking paste suitable for printing, then are baked at the bending or tempering temperature of the glazing.
  • the heating conductors When printing the heating conductors, the bus lines are printed at the same time and the electrical connection elements are soldered on these bus lines after cooking.
  • connection piece of the specified type comprising a flexible metal braid segment
  • connection piece to be brazed is formed by two heels of braid which are bent from the metal braid segment like the arms of a T.
  • the braid heels are each about 8 mm long and are preliminary filled with solder.
  • the object of the invention is to prepare an electrical connection element of the specified type, with a flexible braid segment, in such a way that it can be processed in an automatic brazing machine.
  • connection piece to be brazed is a piece of rigid sheet metal connected to the segment of flexible metallic braid.
  • connection pieces to be brazed from rigid sheet can be manufactured with high precision, in constant dimensions. Since these are rigid parts of constant shape, the shape of which also does not change when the braid segment is welded to this sheet metal part, the electrical connection elements according to the invention can be positioned and brazed easily on the glazing, using automatic brazing machines. Since, in addition, the connection pieces to be soldered have, in this case, defined planar soldering surfaces, the flow of the soldering tin during the soldering operation is limited to a constant surface, of so that soldering can be carried out without difficulty, even on relatively narrow bus bars.
  • the flexible metallic braid segment 1 consists for example of a woven copper ribbon of section transverse rectangular, about 6 mm wide and about 0.8 mm thick. At the end 3 of the metal braid segment 1 is welded a flat plug tab 2 on which, when connected to the electrical network, a connector for corresponding flat plug is slipped.
  • the end zone 4 of the metal braid segment 1 is connected to a piece of rigid sheet metal 5, for example by ultrasonic welding.
  • the sheet metal part 5 forms the heel to be brazed.
  • it may be a flat sheet metal segment, the width and length of which are adapted to the requirements encountered. For example, it may have a width B of approximately 4 mm and a length L of approximately 20 to 25 mm.
  • the middle part 6 of the sheet metal part 5 is bent and forms a connecting section in the form of a bridge between the two sections 7 of the heel to be brazed, which are brazed by their underside on the conductive layer provided on glass.
  • the bent middle part 6 of the sheet metal part 5 forms, in a known manner, a deformable bridge which reduces the thermal stresses resulting from the different thermal expansion of the glass and of the brazed sheet metal part.
  • an insulating sheath 8 made of an adequate plastic material is applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Resistance Heating (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Multi-Conductor Connections (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Window Of Vehicle (AREA)
  • Surface Heating Bodies (AREA)
  • Details Of Aerials (AREA)

Abstract

The invention relates to an electrical connection element to be brazed onto a conducting layer arranged on a window, the connection element consisting of a segment of flexible metal braiding (1), of a plug pin (2) mounted on one of its ends and of a connection piece to be brazed mounted on the other end, this connection piece to be brazed being a rigid sheet metal piece (5). <IMAGE>

Description

La présente invention concerne un élément de connexion électrique à braser sur une couche conductrice disposée sur un vitrage, en particulier un vitrage automobile chauffant électriquement, constitué d'un segment de tresse métallique flexible, d'une fiche montée sur l'une des extrémités de la tresse et d'une pièce de connexion à braser montée sur son autre extrémité.The present invention relates to an electrical connection element to be brazed onto a conductive layer disposed on a glazing, in particular an electrically heated automotive glazing, consisting of a flexible metal braid segment, of a plug mounted on one of the ends of the braid and a brazing connection piece mounted on its other end.

Des éléments de connexion électrique pourvus d'une pièce de connexion à braser et d'une languette d'enfichage s'utilisent en grand nombre dans des lunettes arrières chauffant pour automobiles, dans lesquelles les résistances chauffantes sont appliquées par impression sérigraphique sur la surface du vitrage, sous la forme d'une pâte à cuire apte à l'impression, puis sont cuites à la température de bombage ou de trempe des vitrages. Lors de l'impression des conducteurs chauffants des lignes omnibus sont imprimées en même temps et les éléments de connexion électrique sont brasés sur ces lignes omnibus après la cuisson.Electrical connection elements provided with a connection piece to be brazed and a plug-in tab are used in great number in heated rear windows for automobiles, in which the heating resistors are applied by screen printing on the surface of the glazing, in the form of a baking paste suitable for printing, then are baked at the bending or tempering temperature of the glazing. When printing the heating conductors, the bus lines are printed at the same time and the electrical connection elements are soldered on these bus lines after cooking.

Un élément de connexion électrique du type spécifié comportant un segment de tresse métallique flexible est connu d'après le document EP 0 374 648. Dans le cas de cet élément de connexion électrique connu, la pièce de connexion à braser est formée de deux talons de tresse qui sont coudés à partir du segment de tresse métallique comme les bras d'un T. Les talons de tresse ont chacun une longueur d'environ 8 mm et sont de manière préliminaire garnis de brasure.An electrical connection element of the specified type comprising a flexible metal braid segment is known from document EP 0 374 648. In the case of this known electrical connection element, the connection piece to be brazed is formed by two heels of braid which are bent from the metal braid segment like the arms of a T. The braid heels are each about 8 mm long and are preliminary filled with solder.

Ces éléments de connexion électrique connus ne se prêtent pas facilement à des opérations de manipulation et de brasage automatiques. En particulier, le positionnement entièrement automatique de tels éléments de connexion électrique sur le vitrage, à l'aide d'un automate de brasage, tel que décrit, par exemple, dans le document DE-PS 23 49 329, suscite des difficultés. En raison, notamment, des tolérances de forme et de dimensions inévitables des pièces de connexion à braser constituées des talons de tresse, les éléments de connexion électrique ne peuvent pas être empilés dans les magasins de la machine à braser ni être posés automatiquement sur le vitrage, de la manière connue, à l'aide d'un dispositif à ventouse agissant sur les pièces de connexion à braser.These known electrical connection elements do not readily lend themselves to automatic handling and soldering operations. In particular, the fully automatic positioning of such electrical connection elements on the glazing, using an automatic brazing, as described, for example, in document DE-PS 23 49 329, gives rise to difficulties. Due, in particular, to the inevitable shape and size tolerances of the brazing connection pieces made up of braid heels, the electrical connection elements cannot be stacked in the stores of the brazing machine nor be placed automatically on the glazing. , in known manner, using a suction device acting on the connection pieces to be brazed.

L'invention a pour but de préparer un élément de connexion électrique du type spécifié, à segment de tresse flexible, d'une manière telle qu'il puisse être traité dans un automate de brasage automatique.The object of the invention is to prepare an electrical connection element of the specified type, with a flexible braid segment, in such a way that it can be processed in an automatic brazing machine.

Suivant l'invention, ce but est réalisé par le fait que la pièce de connexion à braser est une pièce de tôle rigide reliée au segment de tresse métallique flexible.According to the invention, this object is achieved by the fact that the connection piece to be brazed is a piece of rigid sheet metal connected to the segment of flexible metallic braid.

Des pièces de connexion à braser en tôle rigide peuvent être fabriquées avec une précision élevée, en des dimensions constantes. Etant donné qu'il s'agit de pièces rigides de forme constante, dont la forme ne se modifie pas non plus lorsque le segment de tresse est soudé à cette pièce de tôle, les éléments de connexion électrique conformes à l'invention peuvent être positionnés et brasés sans problème sur les vitrages, à l'aide d'automates de brasage. Etant donné qu'en outre, les pièces de connexion à braser présentent, dans ce cas, des surfaces à braser planes définies, l'écoulement de l'étain de brasure lors de l'opération de brasage est limité à une surface constante, de sorte que les brasures peuvent s'effectuer sans difficultés, même sur des barres omnibus relativement étroites.Connection pieces to be brazed from rigid sheet can be manufactured with high precision, in constant dimensions. Since these are rigid parts of constant shape, the shape of which also does not change when the braid segment is welded to this sheet metal part, the electrical connection elements according to the invention can be positioned and brazed easily on the glazing, using automatic brazing machines. Since, in addition, the connection pieces to be soldered have, in this case, defined planar soldering surfaces, the flow of the soldering tin during the soldering operation is limited to a constant surface, of so that soldering can be carried out without difficulty, even on relatively narrow bus bars.

Une forme d'exécution préférée de l'élément de connexion électrique conforme à l'invention est illustrée en perspective dans le dessin annexé.A preferred embodiment of the electrical connection element according to the invention is illustrated in perspective in the accompanying drawing.

Le segment de tresse métallique flexible 1 est constitué par exemple d'un ruban de cuivre tissé de section transversale rectangulaire, d'une largeur d'environ 6 mm et d'une épaisseur d'environ 0,8 mm. A l'extrémité 3 du segment de tresse métallique 1 est soudée une languette d'enfichage plate 2 sur laquelle, lors de la connexion au réseau électrique, est glissé un connecteur pour fiche plate correspondant. La zone d'extrémité 4 du segment de tresse métallique 1 est connectée à une pièce de tôle rigide 5, par exemple par soudage aux ultrasons. La pièce de tôle 5 forme le talon à braser. Il peut s'agir dans ce cas d'un segment de tôle plat, dont la largeur et la longueur sont adaptées aux exigences rencontrées. Par exemple, il peut avoir une largeur B d'environ 4 mm et une longueur L d'environ 20 à 25 mm. Il est constitué, de préférence, de tôle de cuivre de 0,8 mm d'épaisseur et peut, comme la fiche plate 2, être argenté. Dans le cas représenté, la partie médiane 6 de la pièce de tôle 5 est coudée et forme une section de liaison en forme de pont entre les deux sections 7 du talon à braser, qui sont brasées par leur face inférieure sur la couche conductrice prévue sur le verre. La partie médiane coudée 6 de la pièce de tôle 5 forme, d'une manière connue, un pont déformable qui réduit les contraintes thermiques résultant de la dilatation thermique différente du verre et de la pièce de tôle brasée. Sur le segment de tresse métallique 1, à l'exception de la partie d'extrémité 4 et de la fiche proprement dite de la languette d'enfichage 2, est appliquée, par rétraction, une gaine isolante 8 en une matière plastique adéquate.The flexible metallic braid segment 1 consists for example of a woven copper ribbon of section transverse rectangular, about 6 mm wide and about 0.8 mm thick. At the end 3 of the metal braid segment 1 is welded a flat plug tab 2 on which, when connected to the electrical network, a connector for corresponding flat plug is slipped. The end zone 4 of the metal braid segment 1 is connected to a piece of rigid sheet metal 5, for example by ultrasonic welding. The sheet metal part 5 forms the heel to be brazed. In this case, it may be a flat sheet metal segment, the width and length of which are adapted to the requirements encountered. For example, it may have a width B of approximately 4 mm and a length L of approximately 20 to 25 mm. It is preferably made of copper sheet 0.8 mm thick and can, like the flat plug 2, be silver. In the case shown, the middle part 6 of the sheet metal part 5 is bent and forms a connecting section in the form of a bridge between the two sections 7 of the heel to be brazed, which are brazed by their underside on the conductive layer provided on glass. The bent middle part 6 of the sheet metal part 5 forms, in a known manner, a deformable bridge which reduces the thermal stresses resulting from the different thermal expansion of the glass and of the brazed sheet metal part. On the metal braid segment 1, with the exception of the end part 4 and of the plug itself of the insertion tab 2, an insulating sheath 8 made of an adequate plastic material is applied.

Claims (4)

1.- Elément de connexion électrique à braser sur une couche conductrice disposée sur un vitrage, en particulier un vitrage automobile chauffant électriquement, constitué d'un segment de tresse métallique flexible, d'une fiche montée sur l'une des extrémités de la tresse et d'une pièce de connexion à braser montée sur son autre extrémité, caractérisé en ce que la pièce de connexion à braser (5) est une pièce de tôle rigide reliée au segment de tresse métallique flexible (1). 1.- Electrical connection element to be soldered on a conductive layer disposed on a glazing, in particular an electrically heated automotive glazing, consisting of a segment of flexible metallic braid, of a plug mounted on one of the ends of the braid and a brazing connection piece mounted on its other end, characterized in that the brazing connection piece (5) is a piece of rigid sheet metal connected to the flexible metal braid segment (1). 2.- Elément de connexion électrique suivant la revendication 1, caractérisé en ce que la pièce de tôle formant la pièce de connexion à braser (5) est reliée au segment de tresse métallique (1) par soudage aux ultrasons. 2.- electrical connection element according to claim 1, characterized in that the sheet metal part forming the connection piece to be brazed (5) is connected to the metal braid segment (1) by ultrasonic welding. 3.- Elément de connexion électrique suivant la revendication 1 ou 2, caractérisé en ce que la section médiane (6) de la pièce de tôle formant la pièce de connexion à braser (5), est coudée de manière à prendre la forme d'un élément en pont. 3.- electrical connection element according to claim 1 or 2, characterized in that the middle section (6) of the sheet metal part forming the connection piece to be brazed (5), is bent so as to take the form of a bridge element. 4.- Elément de connexion électrique suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que le segment de tresse métallique flexible (1) est recouvert d'une gaine isolante rétractable (8). 4.- electrical connection element according to any one of claims 1 to 3, characterized in that the flexible metal braid segment (1) is covered with a retractable insulating sheath (8).
EP91402429A 1990-09-21 1991-09-13 Electrical connection element for a heated vehicle window Expired - Lifetime EP0477069B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9013380U 1990-09-21
DE9013380U DE9013380U1 (en) 1990-09-21 1990-09-21 Power connection element for a heated car window

Publications (3)

Publication Number Publication Date
EP0477069A2 true EP0477069A2 (en) 1992-03-25
EP0477069A3 EP0477069A3 (en) 1992-05-20
EP0477069B1 EP0477069B1 (en) 1994-07-20

Family

ID=6857737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402429A Expired - Lifetime EP0477069B1 (en) 1990-09-21 1991-09-13 Electrical connection element for a heated vehicle window

Country Status (6)

Country Link
US (1) US5738554A (en)
EP (1) EP0477069B1 (en)
AT (1) ATE108972T1 (en)
DE (2) DE9013380U1 (en)
DK (1) DK0477069T3 (en)
ES (1) ES2059083T3 (en)

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USD883227S1 (en) * 2017-11-08 2020-05-05 Central Glass Company, Limited Connecting terminal
GB201817357D0 (en) * 2018-10-25 2018-12-12 Strip Tinning Ltd Flexible connector
DE202018106646U1 (en) 2018-11-22 2018-12-06 Saint-Gobain Glass France An electrical connection element

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Cited By (14)

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Publication number Priority date Publication date Assignee Title
EP0593940A1 (en) * 1992-10-17 1994-04-27 Saint-Gobain Vitrage International S.A. Laminated car windshield with wires and connecting cable embedded in its intermediate layer and its manufacturing method
DE4439645C1 (en) * 1994-11-07 1996-04-11 Sekurit Saint Gobain Deutsch Power connector for a heated car glass
DE10030066A1 (en) * 2000-06-19 2001-12-20 Guardian Automotive Europ S A Connector unit for joining electrically conductive elements of a glass sheet comprises at least one contact region on the surface of the glass sheet, and at least one connector element with insulation material
DE10030066B4 (en) * 2000-06-19 2006-04-13 Guardian Automotive-Europe S.A. Zone Industrielle Potaschberg Electrical connection unit
US6891107B2 (en) 2001-01-19 2005-05-10 Pierre Le Cloirec Device for electric contact for textile material and use thereof for joule heating
FR2819942A1 (en) * 2001-01-19 2002-07-26 Cloirec Pierre Le DEVICE FOR ELECTRICAL CONTACT FOR FIBROUS MATERIALS AND ITS USE FOR JOUL EFFECT HEATING
WO2002058194A1 (en) * 2001-01-19 2002-07-25 Pierre Le Cloirec Device for electric contact for textile material and use thereof for joule heating
EP1488972A1 (en) * 2002-03-11 2004-12-22 Nippon Sheet Glass Co., Ltd. Metal fixture-joined glass article, and joint structure using this
EP1488972A4 (en) * 2002-03-11 2006-09-27 Nippon Sheet Glass Co Ltd Metal fixture-joined glass article, and joint structure using this
US7514654B2 (en) 2002-03-11 2009-04-07 Nippon Sheet Glass Company, Limited Glass article with metal member joined thereto, and junction structure using the same
WO2010057641A1 (en) * 2008-11-20 2010-05-27 Few Fahrzeugelektrikwerk Gmbh & Co. Kg Solder connection
US10374343B2 (en) 2014-04-29 2019-08-06 Saint-Gobain Glass France Electrical connection element for contacting an electrically conductive structure on a substrate
US10388426B2 (en) 2014-12-16 2019-08-20 Saint-Gobain Glass France Pane having an electrical connection element and a flexible connection cable
US10700408B2 (en) 2015-05-05 2020-06-30 Saint-Gobain Glass France Pane with electrical connection element and connecting element attached thereto

Also Published As

Publication number Publication date
US5738554A (en) 1998-04-14
EP0477069B1 (en) 1994-07-20
DE69102964D1 (en) 1994-08-25
ATE108972T1 (en) 1994-08-15
EP0477069A3 (en) 1992-05-20
DK0477069T3 (en) 1994-11-14
ES2059083T3 (en) 1994-11-01
DE9013380U1 (en) 1990-11-29
DE69102964T2 (en) 1995-02-23

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