EP0789423B1 - Method of making an electrical connection by adhesion of a rigid terminal to a conductive track, a rigid terminal for carrying out this method and a heating plate comprising this terminal - Google Patents

Method of making an electrical connection by adhesion of a rigid terminal to a conductive track, a rigid terminal for carrying out this method and a heating plate comprising this terminal Download PDF

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Publication number
EP0789423B1
EP0789423B1 EP97400268A EP97400268A EP0789423B1 EP 0789423 B1 EP0789423 B1 EP 0789423B1 EP 97400268 A EP97400268 A EP 97400268A EP 97400268 A EP97400268 A EP 97400268A EP 0789423 B1 EP0789423 B1 EP 0789423B1
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EP
European Patent Office
Prior art keywords
terminal
conductive material
electrically conductive
strips
bonding
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.)
Expired - Lifetime
Application number
EP97400268A
Other languages
German (de)
French (fr)
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EP0789423A1 (en
Inventor
Martine Dizin
Jacky Veniat
Henri Piera
Michel Sarrazin
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.)
SEB SA
Original Assignee
SEB SA
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Filing date
Publication date
Priority claimed from FR9601636A external-priority patent/FR2744842B1/en
Application filed by SEB SA filed Critical SEB SA
Publication of EP0789423A1 publication Critical patent/EP0789423A1/en
Application granted granted Critical
Publication of EP0789423B1 publication Critical patent/EP0789423B1/en
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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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • 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
    • H01R4/04—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 using electrically conductive adhesives
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49147—Assembling terminal to base

Definitions

  • the invention relates to a method of making electrical connection by bonding a rigid terminal on a conductive track.
  • connection electric for a hot plate or for a container heating, especially for a kettle It applies more particularly, although not exclusively, to the realization of connection electric for a hot plate or for a container heating, especially for a kettle.
  • a hot plate has been described in French patent application FR-A-2 692 426, at name of the Applicant.
  • a hot plate includes in particular a metal support surmounted by a layer of vitreous composition, itself supporting a resistive track. The latter is filed advantageously by screen printing and resistance form heating.
  • a heating plate thus designed has many advantages. She is first particularly suitable for heating a kettle. It is easy to clean, which is also hygienically advantageous, and allows a high thermal efficiency. Finally, due to its low thickness, it fits easily inside a kettle.
  • connections electrical, at the ends of the resistive track are made by gluing, using a material driver, as the Figure 3 of this patent application.
  • a wire or a metal strip is drowned in a drop conductive resin deposited on the conductive track. We then proceed to a drying and crosslinking of the resin.
  • metal lugs rigid or similar instead of sticking directly the electrical wire on the resistive track.
  • This method allows, in particular, to easily disassemble the plate, by disconnecting the electric supply wires current, these wires being provided with a terminal lug complementary to the terminal glued on the track resistive.
  • the pod has flat legs or wings intended to be fixed on the metal substrate conductor that constitutes the heating grid, legs or wings being connected by a bridge carrying a blade for connection to a connector element outside.
  • Said connection technique aims to prevent the risk of separation of the legs or wings of terminal which, after welding on the heating grid, tend to contract, while the glazing bearing the grid remains stable in dimensions.
  • the risk of decoupling is avoided by making slits, indentations or perforations in the pod bridge, to reduce the section.
  • This solder connection technique does not not intended for applications using bonding means such as a conductive resin.
  • the invention also relates to a rigid terminal for the implementation of said method.
  • the invention also relates to a plate heater for a heating container, in particular for a kettle, comprising a resistive track on which is glued such a pod.
  • Figure 1 schematically illustrates an example of heating plate 1, seen from below.
  • This includes a thick metallic support 12, generally circular, coated with a layer 11 of glass composition electrically insulating.
  • a resistive track 10 composed of a glass base charged with particles metallic. Track 10 has the shape of a spiral, the ends 10a and 10b, are intended to be connected to a source of electric current.
  • the thickness of the layer 11 of glass composition is at least equal to 300 ⁇ m and preferably equal to approximately 400 ⁇ m.
  • the thickness of the resistive track is typically between 8 and 30 ⁇ m.
  • Figure 2 illustrates a first example of connection making using a terminal in rivet shape 2.
  • Figure 3 illustrates a second example of connection making using a terminal in washer shape 2.
  • the production method according to the invention includes a first step during which a first end 30 of a segment of electric wire multi-strand 3 is threaded, either in the neck 20 of a rivet 2, or in the central orifice 20 'of a washer 2.
  • the other end, 31, is arranged below the rivet 2 or washer 2 ', and the strands of this end emerge in divergent peripheral bundle.
  • the electric wire 3 is composed of copper strands, the diameters of which are preferably in the range 0.2 to 0.8 mm.
  • the multi-strand 3 is coated with a thermostable conductive resin 4.
  • the assembly is applied to the resistive track 10, more precisely one or the other of the ends of the conductive track, for example the end 10a, as illustrated in FIGS. 2 and 3.
  • the assembly is applied to the resistive track 10, more precisely one or the other of the ends of the conductive track, for example the end 10a, as illustrated in FIGS. 2 and 3.
  • the strands, in particular those, 31, located between the solid surfaces of the terminal and the resistive track 10 act as "drains", evacuating gas bubbles that form during this stage.
  • the connector thus produced is ready to receive any system of suitable connection, such as a plug-in terminal 5 (for example on a tab 21 of the pod 2 '), a crimping, etc.
  • a plug-in terminal 5 for example on a tab 21 of the pod 2 '
  • a crimping etc.
  • Figure 4 illustrates a example of making a rigid terminal to stick on a track, according to a preferred embodiment of the invention.
  • the terminal referenced 6, is entirely symmetrical with respect to an axis ⁇ passing through a central zone thereof. We have assumed (in the example described) that this axis is substantially perpendicular to runway 10, in its area end 10a.
  • the side wings, 62 and 63 are provided cutouts, for example at their ends, which do not leave only a series of thin strips 64 and 65, respectively.
  • each wing, 63 and 64 has three strips of this type.
  • the bonding on the surface 10a of the track 10 is carried out in a manner quite similar to what has been previously recalled, using a thermostable conductive resin 4, which coats the strips, 64 and 65 It is therefore unnecessary to recall this step of the process.
  • a drying and crosslinking cycle is also carried out in a conventional manner per se , the precise characteristics of which (time, temperature, etc.) depend on the type of adhesive used and are indicated by the supplier.
  • the thin strips, 64 and 65 evacuate the gas bubbles that form during this step.
  • the surface defined by these lamellae, 64 and 65 must be sufficient to obtain good adhesion of the terminal on the surface 10a of runway 10.
  • the slats be sufficiently fine.
  • the width of slats, 64 and 65 will be chosen lower or at most equal to 1 mm.
  • the sheet used does not differ from that of the pods of known art: one can choose, by for example, nickel-plated steel, brass or copper.
  • the vertical blade 60, used for the connectors, is preferably folded around an axis ⁇ p , such that it coincides with the pivot axis of the blade 60 relative to the base of the terminal 6. It s 'ensuit that the terminal can be placed, stably, on the surface 10a of the track 10, especially during the passage to the oven to obtain the crosslinking of the resin. This feature facilitates the automation of the process steps.
  • the central area is raised relative to the surface 10a of track 10. It forms a trigger guard with sides, 67 and 68 inclined. This geometric characteristic plays the role of a stiffener at the base of the terminal 6.
  • the terminal 6a shown in Figure 5 has a vertical blade 60 for connectors and a single wing 64a, obtained by folding, for example at 60 ° so to obtain a good stabilization of the tongue of glue.
  • the latter according to the characteristic main of the invention has thin strips 640a obtained by cutting. These 640a slats are parallel to the surface of the blade 60.
  • the terminal 6a shown in Figure 6 has also a blade 60 for connectors and a single wing 64b, obtained by folding.
  • the latter according to the main feature of the invention, includes thin strips 640b obtained by cutting. The only notable difference is that these 640b slats are orthogonal to the surface of the blade 60.
  • the terminal 6c illustrated by FIG. 7, has a structure similar to that of FIG. 4, in that the slats are oriented to be parallel to the surface of the blade 60.
  • the wing 64c forming the base of terminal 6c, is divided into two and has two series of lamellae, 640c and 641c, respectively.
  • This arrangement offers the advantage of more large bonding surface, better stability, and, due to the multiplication of lamellae, allows better evacuation of gas bubbles. She is therefore easier to make a terminal for which the blade 60 is inclined and no longer vertical.
  • the above version of the invention allows simplify the bonding process and make it more "industrial”. It is no longer necessary, in particular, to use a foreign element (the wire segment multi-strand electric).
  • the manufacture of is neither more complex nor more expensive than the making a terminal according to known art.
  • the production of the slats can be carried out by cutting, together with the classic parts of a pod.
  • the usable materials do not differ from those of known art.
  • pod structures are usable, for example structures in the form of rivet (of the type shown in Figure 2), flat washer or eyelet shape. It is enough that the base of these terminals has at least one zone fitted with thin strips.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Resistance Heating (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

L'invention concerne un procédé de réalisation de connexion électrique par collage d'une cosse rigide sur une piste conductrice.The invention relates to a method of making electrical connection by bonding a rigid terminal on a conductive track.

Elle concerne également une cosse rigide pour la mise en oeuvre du procédé.It also relates to a rigid terminal for the implementation of the process.

Elle s'applique plus particulièrement, bien que non exclusivement, à la réalisation de connexion électrique pour une plaque chauffante ou pour récipient chauffant, notamment pour une bouilloire.It applies more particularly, although not exclusively, to the realization of connection electric for a hot plate or for a container heating, especially for a kettle.

Un exemple de plaque chauffante a été décrit dans la demande de brevet français FR-A-2 692 426, au nom de la Demanderesse. Une telle plaque chauffante comprend notamment un support métallique surmonté d'une couche de composition vitreuse, elle-même supportant une piste résistive. Cette dernière est déposée avantageusement par sérigraphie et forme résistance chauffante.An example of a hot plate has been described in French patent application FR-A-2 692 426, at name of the Applicant. Such a hot plate includes in particular a metal support surmounted by a layer of vitreous composition, itself supporting a resistive track. The latter is filed advantageously by screen printing and resistance form heating.

Une plaque chauffante ainsi conçue présente de nombreux avantages. Elle est tout d'abord particulièrement adaptée au chauffage d'une bouilloire. Elle est facilement nettoyable, ce qui est aussi avantageux d'un point de vue hygiénique, et permet un rendement thermique élevé. Enfin, du fait de sa faible épaisseur, elle se place facilement à l'intérieur d'une bouilloire.A heating plate thus designed has many advantages. She is first particularly suitable for heating a kettle. It is easy to clean, which is also hygienically advantageous, and allows a high thermal efficiency. Finally, due to its low thickness, it fits easily inside a kettle.

Selon cette demande de brevet, les connexions électriques, aux extrémités de la piste résistive, s'effectuent par collage, à l'aide d'un matériau conducteur, comme le montre plus particulièrement la figure 3 de cette demande de brevet. Pour ce faire, un fil ou une languette métallique est noyé dans une goutte de résine conductrice déposée sur la piste conductrice. On procède ensuite à une phase de séchage et de réticulation de la résine.According to this patent application, the connections electrical, at the ends of the resistive track, are made by gluing, using a material driver, as the Figure 3 of this patent application. To do this, a wire or a metal strip is drowned in a drop conductive resin deposited on the conductive track. We then proceed to a drying and crosslinking of the resin.

Pour certaines applications spécifiques il apparaít souhaitable d'utiliser des cosses métalliques rigides ou des organes similaires, au lieu de coller directement le fil électrique sur la piste résistive. Cette méthode permet, notamment, de démonter facilement la plaque, en déconnectant les fils électriques d'amenée du courant, ces fils étant munis d'une cosse terminale complémentaire de la cosse collée sur la piste résistive.For some specific applications it appears desirable to use metal lugs rigid or similar, instead of sticking directly the electrical wire on the resistive track. This method allows, in particular, to easily disassemble the plate, by disconnecting the electric supply wires current, these wires being provided with a terminal lug complementary to the terminal glued on the track resistive.

On connaít par exemple par le document US-A-4 023 008 une technique de connexion de cosse sur la grille de chauffage électrique d'une vitre de véhicule. La cosse comporte des pattes ou ailes planes destinées à être fixées sur le substrat métallique conducteur que constitue la grille de chauffage, les pattes ou ailes étant reliées par un pont portant une lame pour la connexion à un élément de connectique extérieur. Ladite technique de connexion vise à prévenir le risque de désolidarisation des pattes ou ailes de cosse qui, après soudure sur la grille de chauffage, tendent à se contracter, alors que le vitrage portant la grille reste stable en dimensions. Le risque de désolidarisation est évité en pratiquant des fentes, indentations ou perforations dans le pont de la cosse, afin d'en réduire la section.We know for example by the document US-A-4,023,008 a terminal connection technique on the electric heating grid of a window vehicle. The pod has flat legs or wings intended to be fixed on the metal substrate conductor that constitutes the heating grid, legs or wings being connected by a bridge carrying a blade for connection to a connector element outside. Said connection technique aims to prevent the risk of separation of the legs or wings of terminal which, after welding on the heating grid, tend to contract, while the glazing bearing the grid remains stable in dimensions. The risk of decoupling is avoided by making slits, indentations or perforations in the pod bridge, to reduce the section.

Cette technique de connexion par soudure ne s'adresse toutefois pas aux applications utilisant des moyens de collage tels qu'une résine conductrice.This solder connection technique does not not intended for applications using bonding means such as a conductive resin.

Or, pendant la phase de séchage et de réticulation de la résine, il se forme des gaz. Pour le collage de cosse sur la piste résistive précitée, il est nécessaire de favoriser l'écoulement des gaz. En effet, si tel n'est pas le cas, il se forme des bulles gazeuses sous les surfaces pleines des cosses. Ces bulles gazeuses restent emprisonnées et fragilisent les contacts, tant d'un point de vue mécanique qu'électrique.However, during the drying and crosslinking of the resin, gases are formed. For the bonding the terminal on the aforementioned resistive track, it is necessary to promote the flow of gases. Indeed, if not, gas bubbles are formed under the solid surfaces of the terminals. These bubbles gases remain trapped and weaken the contacts, both from a mechanical point of view than electric.

Par contre, la Demanderesse a constaté que l'écoulement des gaz résultant de la phase de séchage et de réticulation de la résine était satisfaisant lorsqu'il s'agissait de coller des fils électriques multibrins, directement sur les pistes résistives. Cet écoulement s'effectue dans des conditions particulièrement bonnes lorsque le diamètre des brins est compris dans la gamme de 0,2 à 0,8 mm.However, the Applicant has found that the flow of gases resulting from the drying phase and resin crosslinking was satisfactory when it came to gluing electrical wires multi-strand, directly on the resistive tracks. This flow takes place under conditions particularly good when the diameter of the strands is in the range of 0.2 to 0.8 mm.

Il est par contre difficile de raccorder une connexion sur un fil électrique souple.It is however difficult to connect a connection on a flexible electric wire.

Suivant l'invention, le procédé de réalisation d'une connexion électrique par collage à l'aide d'une substance conductrice de l'électricité est caractérisé en ce qu'il comprend au moins les étapes suivantes:

  • a) réalisation à l'extrémité d'une cosse en matériau conducteur de l'électricité d'une zone formée de brins ou de lamelles;
  • b) enrobage de cette zone formée de brins ou de lamelles par ladite substance de collage conductrice de l'électricité;
  • c) et application de ladite zone sur ladite couche de matériau conducteur pour réaliser ledit collage.
    • According to the invention, the method of producing an electrical connection by bonding using an electrically conductive substance is characterized in that it comprises at least the following steps:
  • a) production at the end of a terminal made of electrically conductive material of an area formed of strands or strips;
  • b) coating of this zone formed of strands or lamellae by said electrically conductive bonding substance;
  • c) and application of said zone on said layer of conductive material to effect said bonding.

    • Selon une première version de l'invention, le procédé comprend au moins les étapes suivantes:

  • a) insertion, dans une cosse en matériau conducteur de l'électricité et comportant un orifice, d'un segment de fil électrique multibrins dans ledit orifice;
  • b) enrobage de ce segment de fil électrique multibrins par ladite substance de collage conductrice de l'électricité;
  • c) et application de l'ensemble "segment de fil électrique-cosse" sur ladite couche de matériau conducteur, pour réaliser ledit collage.
    • According to a first version of the invention, the method comprises at least the following steps:
  • a) insertion, in a terminal made of electrically conductive material and comprising an orifice, of a segment of multi-strand electric wire in said orifice;
  • b) coating of this segment of multi-strand electric wire with said electrically conductive bonding substance;
  • c) and application of the “electrical wire-terminal segment” assembly to said layer of conductive material, in order to produce said bonding.

    • Selon une seconde version de l'invention, le procédé comprend au moins les étapes suivantes:

  • a) réalisation d'une série de lamelles dans au moins une zone sensiblement plane d'une cosse rigide, réalisée en matériau conducteur de l'électricité:
  • b) enrobage de cette zone munie desdites lamelles par ladite substance de collage conductrice de l'électricité;
  • c) et pose de la zone munie des lamelles sur ladite couche de matériau conducteur, pour réaliser ledit collage.
    • According to a second version of the invention, the method comprises at least the following steps:
  • a) production of a series of strips in at least one substantially flat area of a rigid terminal, made of electrically conductive material:
  • b) coating this zone provided with said strips with said electrically conductive bonding substance;
  • c) and placing the zone provided with strips on said layer of conductive material, in order to carry out said bonding.

    • L'invention a encore pour objet une cosse rigide pour la mise en oeuvre dudit procédé.The invention also relates to a rigid terminal for the implementation of said method.

    L'invention a encore pour objet une plaque chauffante pour récipient chauffant, notamment pour une bouilloire, comportant une piste résistive sur laquelle est collée une telle cosse.The invention also relates to a plate heater for a heating container, in particular for a kettle, comprising a resistive track on which is glued such a pod.

    L'invention sera mieux comprise et d'autres caractéristiques et avantages apparaítront à la lecture de la description qui suit en référence aux figures annexées, et parmi lesquelles:

    • la figure 1 illustre un exemple de plaque chauffante comportant une piste résistive;
    • la figure 2 illustre un exemple de connexion selon l'invention, mettant en oeuvre une cosse en forme de rivet;
    • la figure 3 illustre un exemple de connexion selon l'invention, mettant en oeuvre une cosse en forme de rondelle;
    • la figure 4 illustre un exemple de réalisation d'une cosse rigide à coller sur une piste selon un mode de réalisation préféré de l'invention;
    • les figures 5 à 7 illustrent des variantes supplémentaires de cosses rigides à coller sur une piste selon l'invention.
    The invention will be better understood and other characteristics and advantages will appear on reading the description which follows with reference to the appended figures, and among which:
    • FIG. 1 illustrates an example of a heating plate comprising a resistive track;
    • FIG. 2 illustrates an example of connection according to the invention, using a lug in the form of a rivet;
    • FIG. 3 illustrates an example of connection according to the invention, using a terminal in the shape of a washer;
    • FIG. 4 illustrates an exemplary embodiment of a rigid terminal to be bonded to a track according to a preferred embodiment of the invention;
    • Figures 5 to 7 illustrate additional variants of rigid lugs to be bonded to a track according to the invention.

    On va se placer ci-après dans le cadre de l'application préférée, c'est-à-dire la réalisation de connexions pour une plaque chauffante destinée à un récipient chauffant, du type bouilloire ou similaire.We will place ourselves below in the context of the preferred application, i.e. the realization of connections for a hot plate intended for a heating container, kettle type or similar.

    La figure 1 illustre schématiquement un exemple de plaque chauffante 1, en vue de dessous. Celle-ci comprend un support métallique épais 12, généralement circulaire, revêtu d'une couche 11 de composition vitreuse électriquement isolante. On applique sur celle-ci, avantageusement par sérigraphie, une piste résistive 10 composée d'une base vitreuse chargée de particules métalliques. La piste 10 a la forme d'une spirale, dont les extrémités 10a et 10b, sont destinées à être connectées à une source de courant électrique. Figure 1 schematically illustrates an example of heating plate 1, seen from below. This includes a thick metallic support 12, generally circular, coated with a layer 11 of glass composition electrically insulating. We apply on it, advantageously by screen printing, a resistive track 10 composed of a glass base charged with particles metallic. Track 10 has the shape of a spiral, the ends 10a and 10b, are intended to be connected to a source of electric current.

    Pour fixer les idées, l'épaisseur de la couche 11 de composition vitreuse est au moins égale à 300 µm et de préférence égale à 400 µm environ. L'épaisseur de la piste résistive est comprise typiquement entre 8 et 30 µm. Pour une description plus détaillée de cet exemple de réalisation de plaque chauffante 1, on se reportera avec profit à la demande de brevet français FR-A-2 692 426 précitée.To fix ideas, the thickness of the layer 11 of glass composition is at least equal to 300 μm and preferably equal to approximately 400 μm. The thickness of the resistive track is typically between 8 and 30 µm. For a more detailed description of this example of embodiment of a hot plate 1, we carry forward with profit to the French patent application FR-A-2 692 426 cited above.

    Selon les dispositions décrites dans cette demande de brevet, les connexions électriques avec des fils d'amenée de courant s'effectuaient directement par collage de ceux-ci, à l'aide d'une résine conductrice sur les extrémités de la piste résistive, 10a et 10b respectivement.According to the provisions described in this patent application, electrical connections with current supply wires were made directly by bonding of these, using a conductive resin on the ends of the resistive track, 10a and 10b respectively.

    Si l'on désire, non plus coller directement les fils électriques ou des languettes métalliques, mais des cosses rigides, on est confronté aux problèmes qui ont été rappelés, à savoir la formation de bulles de gaz emprisonnées sous les surfaces pleines de celles-ci. Ces bulles de gaz ont pour effet nuisible de fragiliser les contacts, tant d'un point de vue mécanique qu'électrique.If you wish, no longer directly paste the electrical wires or metal tabs, but rigid lugs, we are faced with the problems that have been recalled, namely the formation of gas bubbles trapped under the solid surfaces thereof. These gas bubbles have the harmful effect of weakening the contacts, both from a mechanical point of view than electric.

    On va maintenant décrire le procédé de réalisation de connexion électrique par collage d'une cosse sur une piste conductrice selon l'invention, par référence aux figures 2 et 3.We will now describe the process of making an electrical connection by gluing a terminal on a conductive track according to the invention, by reference to Figures 2 and 3.

    La figure 2 illustre un premier exemple de réalisation de connexion mettant en oeuvre une cosse en forme de rivet 2.Figure 2 illustrates a first example of connection making using a terminal in rivet shape 2.

    La figure 3 illustre une second exemple de réalisation de connexion mettant en oeuvre une cosse en forme de rondelle 2.Figure 3 illustrates a second example of connection making using a terminal in washer shape 2.

    Dans les deux cas, et selon une caractéristique importante, le procédé de réalisation selon l'invention comprend une première étape pendant laquelle une première extrémité 30 d'un segment de fil électrique multibrins 3 est enfilé, soit dans le col 20 d'un rivet 2, soit dans l'orifice central 20' d'un rondelle 2. L'autre extrémité, 31, est disposée en dessous du rivet 2 ou de la rondelle 2', et les brins de cette extrémité ressortent en faisceau périphérique divergent.In both cases, and according to a characteristic important, the production method according to the invention includes a first step during which a first end 30 of a segment of electric wire multi-strand 3 is threaded, either in the neck 20 of a rivet 2, or in the central orifice 20 'of a washer 2. The other end, 31, is arranged below the rivet 2 or washer 2 ', and the strands of this end emerge in divergent peripheral bundle.

    De façon avantageuse, le fil électrique 3 est composé de brins en cuivre, dont les diamètres sont compris préférentiellement dans une gamme 0,2 à 0,8 mm.Advantageously, the electric wire 3 is composed of copper strands, the diameters of which are preferably in the range 0.2 to 0.8 mm.

    Lors d'une deuxième étape, le fil multibrins 3 est enduit d'une résine conductrice thermostable 4.In a second step, the multi-strand 3 is coated with a thermostable conductive resin 4.

    On peut utiliser, à titre d'exemple non limitatif, une résine polyimide chargée à l'argent, notamment les résines disponibles dans le commerce, sous les références et marques suivantes:

    • "CEMOTA HT 100" de la marque "CEMOCLA".
    By way of nonlimiting example, a polyimide resin loaded with silver, in particular the resins available commercially, under the following references and brands can be used:
    • "CEMOTA HT 100" from the brand "CEMOCLA".

    Dans une étape ultérieure, l'ensemble est appliqué sur la piste résistive 10, plus précisément l'une ou l'autre des extrémités de la piste conductrice, par exemple l'extrémité 10a, comme illustré sur les figures 2 et 3. On fait subir alors, de façon classique per se, un cycle de séchage et de réticulation, dont les caractéristiques précises (temps, température, etc.) dépendent du type de colle utilisé et sont indiquées par le fournisseur.In a subsequent step, the assembly is applied to the resistive track 10, more precisely one or the other of the ends of the conductive track, for example the end 10a, as illustrated in FIGS. 2 and 3. We do then undergo, in a conventional manner per se , a drying and crosslinking cycle, the precise characteristics of which (time, temperature, etc.) depend on the type of adhesive used and are indicated by the supplier.

    Les brins, notamment ceux, 31, situés entre les surfaces pleines de la cosse et la piste résistive 10 jouent le rôle de "drains", évacuant les bulles de gaz qui se forment pendant cette étape.The strands, in particular those, 31, located between the solid surfaces of the terminal and the resistive track 10 act as "drains", evacuating gas bubbles that form during this stage.

    Après l'étape de réticulation, le connecteur ainsi réalisé est prêt à recevoir tout système de connexion adapté, tel qu'une cosse enfichable 5 (par exemple sur une languette 21 de la cosse 2'), un sertissage, etc.After the crosslinking step, the connector thus produced is ready to receive any system of suitable connection, such as a plug-in terminal 5 (for example on a tab 21 of the pod 2 '), a crimping, etc.

    A la lecture de ce qui précède, on constate aisément que l'invention atteint bien les buts qu'elle s'est fixés. On reading the above, we see easily that the invention achieves the goals it settled down.

    Tout en conservant les avantages d'une connexion mettant en oeuvre un fil électrique multibrins collé sur la piste résistive (notamment en bonne tenue mécanique et bonne qualité électrique des contacts), elle permet aussi d'obtenir les avantages liés à l'utilisation de cosses rigides.While retaining the benefits of a connection using a multi-strand electrical wire bonded to the resistive track (especially in good mechanical strength and good electrical quality of the contacts), it allows also get the benefits of using rigid lugs.

    Il doit être clair cependant que l'invention n'est pas limitée aux seuls exemples de réalisations précisément décrits, notamment en relation avec les figures 2 et 3.It should be clear, however, that the invention is not limited to only examples of achievements precisely described, in particular in relation to Figures 2 and 3.

    Tout d'abord d'autres structures de cosses sont utilisables, les structures en forme de rivet 2 ou en forme de rondelle plate 2', n'ayant été décrites que pour mieux fixer les idées. On peut utiliser, notamment, des cosses en forme d'oeillet.First other pod structures are usable, rivet-shaped structures 2 or 2 'flat washer shape, having only been described to better fix ideas. We can use, in particular, eyelet-shaped lugs.

    D'autres types de colles conductrices peuvent également être mises en oeuvre. Les matériaux utilisables sont essentiellement liés à l'application spécifique envisagée et participe d'un simple choix technologique à la portée de l'Homme du Métier.Other types of conductive adhesives can also be implemented. The materials usable are essentially related to the application specific envisaged and participates in a simple choice technology within the reach of the skilled person.

    On va maintenant décrire le procédé de réalisation de connexion électrique par collage d'une cosse sur une piste conductrice selon l'invention, par référence aux figures 4 à 7.We will now describe the process of making an electrical connection by gluing a terminal on a conductive track according to the invention, by reference to Figures 4 to 7.

    Plus particulièrement, la figure 4 illustre un exemple de réalisation d'une cosse rigide à coller sur une piste, selon un mode de réalisation préféré de l'invention.More particularly, Figure 4 illustrates a example of making a rigid terminal to stick on a track, according to a preferred embodiment of the invention.

    Dans ce qui suit, les éléments communs avec la figure 2 portent les mêmes références et ne seront redécrits qu'en tant que de besoin.In what follows, the common elements with the Figure 2 have the same references and will not be re-described as necessary.

    Dans ce mode de réalisation, la cosse, référencée 6, est entièrement symétrique par rapport à un axe Δ passant par une zone centrale de celle-ci. On a supposé (dans l'exemple décrit) que cet axe est sensiblement perpendiculaire à la piste 10, dans sa zone d'extrémité 10a.In this embodiment, the terminal, referenced 6, is entirely symmetrical with respect to an axis Δ passing through a central zone thereof. We have assumed (in the example described) that this axis is substantially perpendicular to runway 10, in its area end 10a.

    Elle est constituée d'une zone centrale, 61, surélevée par rapport à la surface, 10a, de la piste, 10, de deux ailes latérales, 63 et 64, et d'une lame centrale sensiblement verticale, 60. Cette dernière forme, la cosse proprement dite, permettant la connectique. On peut y enfiler, par exemple, une cosse femelle 5.It consists of a central area, 61, raised above the surface, 10a, of the runway, 10, two side wings, 63 and 64, and a blade substantially vertical center, 60. The latter shape, the terminal itself, allowing connectors. You can put on it, for example, a pod female 5.

    Selon une des caractéristiques principales de l'invention, les ailes latérales, 62 et 63, sont munies de découpes, par exemple en leurs extrémités, qui ne laissent subsister qu'une série de lamelles fines 64 et 65, respectivement. Dans l'exemple de la figure 3, chaque aile, 63 et 64, comporte trois lamelles de ce type.According to one of the main characteristics of the invention, the side wings, 62 and 63, are provided cutouts, for example at their ends, which do not leave only a series of thin strips 64 and 65, respectively. In the example in Figure 3, each wing, 63 and 64, has three strips of this type.

    Ce sont ces lamelles, 64 et 65, qui jouent le rôle des brins en cuivre 3 de la figure 2, c'est-à-dire le rôle de "drains".It is these lamellae, 64 and 65, which play the role of the copper strands 3 of FIG. 2, that is to say the role of "drains".

    En effet, le collage sur la surface 10a de la piste 10 s'effectue de façon tout à fait similaire à ce qui a été précédemment rappelé, à l'aide d'une résine conductrice thermostable 4, qui enrobe les lamelles, 64 et 65. Il est donc inutile de rappeler cette étape du procédé. On réalise également, de façon classique per se, un cycle de séchage et de réticulation dont les caractéristiques précises (temps, température, etc.) dépendent du type de colle utilisé et sont indiquées par le fournisseur.Indeed, the bonding on the surface 10a of the track 10 is carried out in a manner quite similar to what has been previously recalled, using a thermostable conductive resin 4, which coats the strips, 64 and 65 It is therefore unnecessary to recall this step of the process. A drying and crosslinking cycle is also carried out in a conventional manner per se , the precise characteristics of which (time, temperature, etc.) depend on the type of adhesive used and are indicated by the supplier.

    Les lamelles fines, 64 et 65, évacuent les bulles de gaz qui se forment pendant cette étape. La surface définie par ces lamelles, 64 et 65, doit être suffisante pour obtenir une bonne adhérence de la cosse sur la surface 10a de la piste 10.The thin strips, 64 and 65, evacuate the gas bubbles that form during this step. The surface defined by these lamellae, 64 and 65, must be sufficient to obtain good adhesion of the terminal on the surface 10a of runway 10.

    Pour obtenir cet effet avantageux, comme il a été indiqué, il est nécessaire que les lamelles soient suffisamment fines. Typiquement, la largeur des lamelles, 64 et 65, sera choisie inférieure ou au plus égale à 1 mm. La tôle utilisée ne diffère en rien de celle des cosses de l'art connu: on peut choisir, par exemple, de l'acier nickelé, du laiton ou du cuivre.To achieve this advantageous effect, as it has been indicated, it is necessary that the slats be sufficiently fine. Typically, the width of slats, 64 and 65, will be chosen lower or at most equal to 1 mm. The sheet used does not differ from that of the pods of known art: one can choose, by for example, nickel-plated steel, brass or copper.

    La cosse 6, conforme à l'invention, présente en outre d'autres caractéristiques avantageuses. La lame verticale 60, utilisée pour la connectique, est préférentiellement pliée autour d'un axe Δp, tel que celui-ci soit confondu avec l'axe de pivotement de la lame 60 par rapport à la base de la cosse 6. Il s'ensuit que la cosse peut être posée, de façon stable, sur la surface 10a de la piste 10, notamment lors du passage à l'étuve pour obtenir la réticulation de la résine. Cette caractéristique facilite l'automatisation des étapes du procédé.The terminal 6, according to the invention, also has other advantageous characteristics. The vertical blade 60, used for the connectors, is preferably folded around an axis Δ p , such that it coincides with the pivot axis of the blade 60 relative to the base of the terminal 6. It s 'ensuit that the terminal can be placed, stably, on the surface 10a of the track 10, especially during the passage to the oven to obtain the crosslinking of the resin. This feature facilitates the automation of the process steps.

    En outre, la zone centrale, comme il a été indiqué, est surélevée par rapport à la surface 10a de la piste 10. Elle forme un pontet avec des flancs, 67 et 68 inclinés. Cette caractéristique géométrique joue le rôle d'un raidisseur de la base de la cosse 6.In addition, the central area, as it has been indicated, is raised relative to the surface 10a of track 10. It forms a trigger guard with sides, 67 and 68 inclined. This geometric characteristic plays the role of a stiffener at the base of the terminal 6.

    Enfin, si on munit la cosse 6 d'une découpe 66 adjacente à la lame 60, cette disposition permet de limiter les effets des dilatations éventuelles. En effet, ces dilatations sont à craindre dans le cas de l'application préférée de l'invention, puisque la piste 10 est une piste résistive chauffante. Cette découpe est habituellement réalisée automatiquement puisque la lame 60 est généralement obtenue par découpe d'un feuillard, suivie d'un pliage.Finally, if we provide the terminal 6 with a cutout 66 adjacent to the blade 60, this arrangement allows limit the effects of any dilation. In indeed, these dilations are to be feared in the case of the preferred application of the invention, since the track 10 is a heating resistive track. This cut is usually performed automatically since the blade 60 is generally obtained by cutting a strip, followed by folding.

    Bien que la structure de cosse rigide 6 qui vient d'être décrit soit particulièrement avantageuse, notamment du fait de sa symétrie, il est possible de concevoir un grand nombre de configurations.Although the rigid terminal structure 6 which has just been described is particularly advantageous, in particular because of its symmetry, it is possible to design a large number of configurations.

    Trois exemples de réalisations supplémentaires de cosses rigides à coller sur une piste conformes à l'invention vont maintenant être décrits en regard des figures 5 à 7.Three examples of additional achievements rigid lugs to stick on a track conforming to the invention will now be described with reference to Figures 5 to 7.

    Ces trois structures ont en commun le fait de se présenter sous la forme générale d'un "L".These three structures have in common the fact of being present in the general form of an "L".

    La cosse 6a représentée sur la figure 5 comporte une lame verticale 60 pour la connectique et une seule aile 64a, obtenue par pliage, par exemple à 60° afin d'obtenir une bonne stabilisation de la languette de colle. Cette dernière, selon la caractéristique principale de l'invention comporte des fines lamelles 640a obtenues par découpe. Ces lamelles 640a sont parallèles à la surface de la lame 60.The terminal 6a shown in Figure 5 has a vertical blade 60 for connectors and a single wing 64a, obtained by folding, for example at 60 ° so to obtain a good stabilization of the tongue of glue. The latter, according to the characteristic main of the invention has thin strips 640a obtained by cutting. These 640a slats are parallel to the surface of the blade 60.

    La cosse 6a représentée sur la figure 6 comporte également une lame 60 pour la connectique et une seule aile 64b, obtenue par pliage. Cette dernière, selon la caractéristique principale de l'invention, comporte des fines lamelles 640b obtenues par découpe. La seule différence notable est que ces lamelles 640b sont orthogonales à la surface de la lame 60.The terminal 6a shown in Figure 6 has also a blade 60 for connectors and a single wing 64b, obtained by folding. The latter, according to the main feature of the invention, includes thin strips 640b obtained by cutting. The only notable difference is that these 640b slats are orthogonal to the surface of the blade 60.

    Enfin, la cosse 6c, illustrée par la figure 7, présente une structure semblable à celle de la figure 4, en ce sens que les lamelles sont orientées pour être parallèles à la surface de la lame 60. Cependant, l'aile 64c, formant la base de la cosse 6c, est divisée en deux et comporte deux séries de lamelles, 640c et 641c, respectivement.Finally, the terminal 6c, illustrated by FIG. 7, has a structure similar to that of FIG. 4, in that the slats are oriented to be parallel to the surface of the blade 60. However, the wing 64c, forming the base of terminal 6c, is divided into two and has two series of lamellae, 640c and 641c, respectively.

    Cette disposition offre l'avantage d'une plus grande surface de collage, d'une meilleure stabilité, et, du fait de la multiplication des lamelles, permet une meilleure évacuation des bulles de gaz. Elle se prête donc plus aisément à la réalisation d'une cosse pour laquelle la lame 60 est inclinée et non plus verticale.This arrangement offers the advantage of more large bonding surface, better stability, and, due to the multiplication of lamellae, allows better evacuation of gas bubbles. She is therefore easier to make a terminal for which the blade 60 is inclined and no longer vertical.

    A la lecture de ce qui précède, on constate aisément que l'invention atteint bien les buts qu'elle s'est fixés. On reading the above, we see easily that the invention achieves the goals it settled down.

    La version de l'invention ci-dessus permet de simplifier le procédé de collage et de la rendre plus "industriel". Il n'est plus nécessaire, notamment, d'avoir recours à un élément étranger (le segment de fil électrique multibrin). En outre, la fabrication des cosses n'est ni plus complexe, ni plus coûteuse que la réalisation d'une cosse selon l'art connu. La réalisation des lamelles peut s'effectuer par découpage, en même temps que les parties classiques d'une cosse. Les matériaux utilisables ne diffèrent pas de ceux de l'art connu.The above version of the invention allows simplify the bonding process and make it more "industrial". It is no longer necessary, in particular, to use a foreign element (the wire segment multi-strand electric). In addition, the manufacture of is neither more complex nor more expensive than the making a terminal according to known art. The production of the slats can be carried out by cutting, together with the classic parts of a pod. The usable materials do not differ from those of known art.

    Bien entendu, l'invention n'est pas limitée aux seuls exemples de réalisations précisément décrits, notamment en relation avec les figures 4 à 7.Of course, the invention is not limited to only examples of achievements precisely described, especially in relation to Figures 4 to 7.

    Tout d'abord, d'autres structures de cosses sont utilisables, par exemple les structures en forme de rivet (du type de celle représentée sur la figure 2), en forme de rondelle plate ou en forme d'oeillet. Il suffit que la base de ces cosses comporte au moins une zone munie de fines lamelles.First, other pod structures are usable, for example structures in the form of rivet (of the type shown in Figure 2), flat washer or eyelet shape. It is enough that the base of these terminals has at least one zone fitted with thin strips.

    D'autres types de colles conductrices peuvent également être mises en oeuvre. Les matériaux utilisables sont essentiellement liés à l'application spécifique envisagée et participe d'un simple choix technologique à la portée de l'Homme du Métier.Other types of conductive adhesives can also be implemented. The materials usable are essentially related to the application specific envisaged and participates in a simple choice technology within the reach of the skilled person.

    Bien que particulièrement adaptée à la réalisation de connexions pour des plaques chauffantes, notamment pour des bouilloires, on ne saurait cantonner l'invention grâce seul type d'applications. Elle s'applique tout aussi bien à la réalisation de connexion par collage de toutes cosses sur une piste en matériau résistif à l'aide d'une résine conductrice, ou plus généralement d'une colle conductrice.Although particularly suitable for making connections for hot plates, especially for kettles, we cannot confine the invention through only type of applications. She applies equally well to making connections by bonding of all lugs on a material track resistive using one or more conductive resin usually a conductive glue.

    Claims (15)

    1. A method of producing an electric connection by bonding by means of an electrically conductive substance (4) on a layer of conductive material (10), characterised in that it comprises at least the following steps:
      (a) making a zone formed by strands (3) or strips (64, 65) at the end of a terminal (2, 2', 6) of electrically conductive material;
      (b) coating said zone formed of strands or strips with the said electrically conductive bonding substance (4);
      (c) and applying the said zone to the said layer of conductive material (10a) to effect the said bonding.
    2. A method according to claim 1, characterised in that it comprises at least the following steps:
      (a) the insertion of a segment of a multi-strand lead (3) into the aperture (20, 20') formed in a terminal (2, 2') of electrically conductive material;
      (b) coating the said multi-strand lead segment (3) with the said electrically conductive bonding substance (4);
      (c) and applying the assembly comprising the electric lead segment (3) and terminal (2, 2') to the said layer of conductive material (10a) to effect the said bonding.
    3. A method according to claim 2, characterised in that the said electric lead segment (3) is made of copper and in that the strands (30, 31) making up this multi-strand lead segment (3) have a diameter in the range from 0.5 to 0.8 mm.
    4. A method according to any one of claims 1 to 3, characterised in that the said terminal is a rivet (2) with a neck (20).
    5. A method according to any one of claims 1 to 3, characterised in that the said terminal is a flat washer (2') with a central aperture (20').
    6. A method according to any one of claims 1 to 5, characterised in that the said layer of electrically conductive material to which the said terminal (2, 2') is bonded is a resistive track (10) forming a heating resistance.
    7. A method according to claim 1, characterised in that the said strips (64, 65) are made in at least one substantially flat zone (62, 63) of the said rigid terminal (6).
    8. A method according to claim 7, characterised in that each of the said strips (62, 63) has a width no greater than 1 mm.
    9. A method according to claim 2 or 7, characterised in that the said bonding substance being a thermostable electrically conductive resin (4) a supplementary step is carried out for drying and crosslinking said resin (4).
    10. A method according to claim 9, characterised in that the said resin (4) is a silver-filled polyimide.
    11. A rigid terminal (6) for performing the method according to any one of claims 7 to 10, comprising at least one flat limb (62, 63) forming a support adapted to be placed on the said layer of conductive material (10a) and a blade (60) intended to make an electric connection with the external connecting elements (5), characterised in that each flat limb (62, 63) comprises a cut-out zone so as to produce the said strips (62, 63) between said cut-outs.
    12. A terminal according to claim 11, characterised in that the said support comprises a central body (61,66, 67) which is elevated with respect to the said layer of conductive material (10a) and which forms a bridge so as to provide stiffening of the support for the terminal (6), and two flat side limbs (62, 63) each provided with a series of strips (64, 65), and in that the said blade (60) intended to make an electric connection with the external connecting elements (5) is bent through 60° with respect to the support (62, 61, 63).
    13. A terminal according to claim 12, characterised in that the said blade (60) intended to make at least one electrical connection with external connecting elements (5) is bent along an axis (ΔP) coinciding with its pivot axis with respect to the said support (62, 61, 63).
    14. A terminal according to claim 12, characterised in that the central body (61) comprises a cut-out (66) adjacent the said blade (60) intended to make an electrical connection with external connecting elements (5) so as to limit the effects of expansion when the terminal (6) experiences a temperature rise.
    15. A heating plate (1) for a heating vessel, particularly for a kettle, comprising a resistive track (10) on which there is bonded a terminal (6) according to any one of claims 11 to 14.
    EP97400268A 1996-02-09 1997-02-06 Method of making an electrical connection by adhesion of a rigid terminal to a conductive track, a rigid terminal for carrying out this method and a heating plate comprising this terminal Expired - Lifetime EP0789423B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    FR9601636 1996-02-09
    FR9601636A FR2744842B1 (en) 1996-02-09 1996-02-09 METHOD FOR MAKING AN ELECTRICAL CONNECTION BY GLUING A TERMINAL ON A CONDUCTIVE TRACK, ELECTRICAL CONNECTION THUS PRODUCED AND ITS APPLICATION TO A HEATING PLATE FOR A HEATING CONTAINER
    FR9606997A FR2744843B1 (en) 1996-02-09 1996-06-06 METHOD FOR MAKING AN ELECTRICAL CONNECTION BY GLUING A RIGID TERMINAL ON A CONDUCTIVE TRACK, RIGID TERMINAL FOR IMPLEMENTING THE METHOD AND ITS APPLICATION TO A HEATING PLATE FOR A HEATING CONTAINER
    FR9606997 1996-06-06

    Publications (2)

    Publication Number Publication Date
    EP0789423A1 EP0789423A1 (en) 1997-08-13
    EP0789423B1 true EP0789423B1 (en) 2000-06-07

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    US (1) US5928455A (en)
    EP (1) EP0789423B1 (en)
    CN (1) CN1136761C (en)
    CA (1) CA2197053C (en)
    DE (1) DE69702218T2 (en)
    ES (1) ES2148913T3 (en)
    FR (1) FR2744843B1 (en)

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    FR2692426B1 (en) * 1992-06-11 1994-08-26 Seb Sa Heating plate for heating container, in particular for kettle.
    SE502224C2 (en) * 1994-01-14 1995-09-18 Xicon Ab Pattern card with specially designed connection islands

    Also Published As

    Publication number Publication date
    FR2744843B1 (en) 1998-04-10
    CA2197053C (en) 2006-08-15
    DE69702218T2 (en) 2001-02-22
    US5928455A (en) 1999-07-27
    CN1166123A (en) 1997-11-26
    DE69702218D1 (en) 2000-07-13
    CN1136761C (en) 2004-01-28
    ES2148913T3 (en) 2000-10-16
    FR2744843A1 (en) 1997-08-14
    CA2197053A1 (en) 1997-08-10
    EP0789423A1 (en) 1997-08-13

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