EP0380417A1 - Electrical connector for a heating element - Google Patents

Electrical connector for a heating element Download PDF

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Publication number
EP0380417A1
EP0380417A1 EP90400211A EP90400211A EP0380417A1 EP 0380417 A1 EP0380417 A1 EP 0380417A1 EP 90400211 A EP90400211 A EP 90400211A EP 90400211 A EP90400211 A EP 90400211A EP 0380417 A1 EP0380417 A1 EP 0380417A1
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EP
European Patent Office
Prior art keywords
slots
connector
connector according
around
tongue
Prior art date
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Granted
Application number
EP90400211A
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German (de)
French (fr)
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EP0380417B1 (en
Inventor
Roger Eisenberg
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SEB SA
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SEB SA
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Publication date
Application filed by SEB SA filed Critical SEB SA
Priority to EP94116116A priority Critical patent/EP0635992B1/en
Publication of EP0380417A1 publication Critical patent/EP0380417A1/en
Application granted granted Critical
Publication of EP0380417B1 publication Critical patent/EP0380417B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section

Definitions

  • the present invention relates to an electrical connector for a heating element comprising means for fixing it to one end of said heating element and for connecting it to an electrical supply conductor.
  • Such heating elements are used in particular in toasters.
  • These heating elements generally comprise a bar or tube made of electrically insulating material around which a resistive heating wire is helically wound.
  • This resistive heating wire is brought to very high temperature when supplied with electric current.
  • the object of the present invention is to create an electrical connector which fulfills the above conditions while being inexpensive to manufacture, compatible with very large series production.
  • this connector is characterized in that it consists of a cut metal sheet having slots, this cut sheet being rolled around an axis which may correspond to that of the heating element.
  • the part of the sheet having slots is extended by a tongue-shaped part rolled around the aforementioned axis and intended to cover the end of the heating element.
  • This arrangement facilitates the fixing of the connector on the end of the heating element.
  • the connector is associated with an electrical supply conductor constituted by a cut metal strip.
  • the blade has two cut tabs folded back and curved towards one another so as to define between them a substantially cylindrical surface adapted to that defined by the rolled part having the slots of the connector.
  • the electrical connector 1 for the heating element 2 consists of a cut metal sheet having slots 3, 4, 5, 6, 7 (see Figure 4). This cut sheet is rolled around an axis X-X ′ (see FIGS. 1 and 2) intended to correspond to that of the heating element 2.
  • the tongue-forming part 9 is connected to the part 8 having slots 3, 4, 5, 6, 7 by a tab 10 whose width measured in the direction of the length of the tongue 9 is less than the height of slots 3, 4, 5, 6, 7.
  • the dimensions of the cut sheet are such that when it is rolled around said axis XX ′, the opposite ends of the tongue 9 and the opposite tops of the slots 3, 4, 5, 6, 7 are almost in contact ( see Figures 1 and 3).
  • the sheet from which the connector according to the invention is made is preferably made of metal or alloy which is a good conductor of heat and electricity and has a certain elasticity such as brass.
  • Figures 1 and 5 show that the connector 1 is associated with an electrical power supply conductor constituted by a cut metal blade 11 of the same kind as the connector 1.
  • This blade 11 has two cut tabs 12, 13 folded and bent one towards each other so as to define therebetween a substantially cylindrical surface 14a (see FIG. 5) adapted to that defined by the rolled part 8 having the slots of the connector 1.
  • the part 11a of the blade 11 adjacent to the two tongues 12, 13 has a curvature, the convexity of which is directed opposite the tongues 12, 13 and which substantially follows the curvature of these tongues 12, 13.
  • the connector 1 is fixed to one of the ends 2a of a heating element 2 comprising a tube 14 of electrically insulating material such as soapstone, around which a resistive heating wire 15 is helically wound.
  • a cap 16 of insulating material is fixed around the part 9 forming a tongue and the part with tight turns 15a of the resistive wire and partly around the part 8 having slots.
  • the slots 3, 4, 5, 6, 7 of the rolled part 8 of the connector define between them openings through which air can circulate. This circulation of air provides cooling of the entire connector 1, so that it does not risk excessive heating due to its direct contact with the heating wire 15.
  • the thermal expansions and contractions undergone by the connector 1 following a multitude of heating and cooling cycles are not likely to affect the mechanical properties of the connector so that a perfect mechanical connection and an excellent electrical connection between the connector 1 and the heating wire 15 is maintained for a very long service life.
  • the manufacture of the connector 1 is extremely simple since it is carried out by simple cutting and rolling of a metal sheet which are easily automated.
  • the mounting of the connector 1 on the heating element 2 is also simple and automated, since it simply consists of a fitting along the axis X-X ′.
  • the part 8 of the connector may not be rolled, and remain flat, such as after cutting.
  • the tongues 12 and 13, instead of being shaped as a lyre, are then shaped as jaws, the connector engaging between them according to the knife switch system.

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  • Resistance Heating (AREA)

Abstract

The electrical connector (1) for a heating element comprises means for fixing it to one end of the said heating element and for connecting it to an electrical supply conductor (11). The connector (1) consists of a stamped metal sheet having crenellations (3, 4, 5, 6, 7), this stamped sheet being rolled up around an axis (X-X') intended to correspond to that of the heating element. Use in particular in domestic electrical appliances. <IMAGE>

Description

La présente invention concerne un connecteur électrique pour élément chauffant comprenant des moyens pour le fixer à une extrémité dudit élément chauffant et pour le connecter à un conducteur d'alimentation électrique.The present invention relates to an electrical connector for a heating element comprising means for fixing it to one end of said heating element and for connecting it to an electrical supply conductor.

De tels éléments chauffants équipent notamment des grille-pain.Such heating elements are used in particular in toasters.

Ces éléments chauffants comprennent généralement un barreau ou tube en matière électriquement isolante autour duquel est enroulé hélicoïdalement un fil résistif chauffant.These heating elements generally comprise a bar or tube made of electrically insulating material around which a resistive heating wire is helically wound.

Ce fil résistif chauffant est porté à très haute température lorsqu'il est alimenté en courant électrique.This resistive heating wire is brought to very high temperature when supplied with electric current.

Le raccordement mécanique et électrique entre l'extrémité de l'élément chauffant et le conducteur d'alimentation électrique pose des difficultés techniques du fait précisément de la haute température à laquelle est portée le fil résistif chauffant.The mechanical and electrical connection between the end of the heating element and the electrical supply conductor poses technical difficulties precisely because of the high temperature to which the resistive heating wire is brought.

Il faut en effet que ce raccordement résiste à cette haute température, de sorte que la liaison mécanique et électrique avec l'élément chauffant reste intacte, même après une multitude de cycles de chauffage et de refroidissement.This connection must indeed resist this high temperature, so that the mechanical and electrical connection with the heating element remains intact, even after a multitude of heating and cooling cycles.

Le but de la présente invention est de créer un connecteur électrique qui remplisse les conditions ci-­dessus tout en étant d'un coût de fabrication peu onéreux compatible avec une production en très grande série.The object of the present invention is to create an electrical connector which fulfills the above conditions while being inexpensive to manufacture, compatible with very large series production.

Suivant l'invention, ce connecteur est caractérisé en ce qu'il est constitué d'une feuille de métal découpée présentant des créneaux, cette feuille découpée étant roulée autour d'un axe qui peut à correspondre à celui de l'élément chauffant.According to the invention, this connector is characterized in that it consists of a cut metal sheet having slots, this cut sheet being rolled around an axis which may correspond to that of the heating element.

Ces créneaux permettent de réaliser un échange thermique efficace entre le connecteur et l'air environnant de sorte qu'on évite tout échauffement excessif susceptible d'altérer la liaison mécanique et électrique entre le connecteur et l'élément chauffant.These slots make it possible to carry out an efficient heat exchange between the connector and the surrounding air so that any excessive heating liable to be avoided alter the mechanical and electrical connection between the connector and the heating element.

Le fait que la feuille découpée soit roulée confère au connecteur une excellente rigidité mécanique et facilite la liaison mécanique et électrique entre ce connecteur et l'élément chauffant ainsi que le conducteur d'alimentation électrique.The fact that the cut sheet is rolled gives the connector excellent mechanical rigidity and facilitates the mechanical and electrical connection between this connector and the heating element as well as the electrical supply conductor.

Selon une version avantageuse de l'invention, la partie de la feuille présentant des créneaux est prolongée par une partie en forme de languette roulée autour de l'axe précité et destinée à coiffer l'extrémité de l'élément chauffant.According to an advantageous version of the invention, the part of the sheet having slots is extended by a tongue-shaped part rolled around the aforementioned axis and intended to cover the end of the heating element.

Cette disposition facilite la fixation du connecteur sur l'extrémité de l'élément chauffant.This arrangement facilitates the fixing of the connector on the end of the heating element.

Selon une version préférée de l'invention, le connecteur est associé à un conducteur d'alimentation électrique constitué par une lame métallique découpée.According to a preferred version of the invention, the connector is associated with an electrical supply conductor constituted by a cut metal strip.

De préférence, la lame présente deux languettes découpées repliées et recourbées l'une vers l'autre de façon à définir entre elles une surface sensiblement cylindrique adaptée à celle définie par la partie roulée présentant les créneaux du connecteur.Preferably, the blade has two cut tabs folded back and curved towards one another so as to define between them a substantially cylindrical surface adapted to that defined by the rolled part having the slots of the connector.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-­après.Other features and advantages of the invention will appear in the description below.

Aux dessins annexés donnés à titre d'exemples non limitatifs :

  • - la figure 1 est une vue en perspective d'un connecteur électrique selon l'invention et du conducteur électrique qui lui est associé,
  • - la figure 2 est une vue de côté du connecteur,
  • - la figure 3 est une vue en bout selon la flèche F de la figure 2,
  • - la figure 4 est une vue en plan de la feuille métallique découpée plane à partir de laquelle est réalisé le connecteur,
  • - la figure 5 est une vue suivant l'axe du connecteur fixé à la lame conductrice,
  • - la figure 6 est une vue en coupe longitudinale partielle d'un élément chauffant auquel est fixé le connecteur.
In the appended drawings given by way of nonlimiting examples:
  • FIG. 1 is a perspective view of an electrical connector according to the invention and of the electrical conductor associated therewith,
  • FIG. 2 is a side view of the connector,
  • FIG. 3 is an end view along the arrow F in FIG. 2,
  • FIG. 4 is a plan view of the flat cut metal sheet from which the connector is made,
  • FIG. 5 is a view along the axis of the connector fixed to the conductive strip,
  • - Figure 6 is a partial longitudinal sectional view of a heating element to which the connector is fixed.

Dans la réalisation des figures annexées, le connecteur électrique 1 pour l'élément chauffant 2 est constitué d'une feuille de métal découpée présentant des créneaux 3, 4, 5, 6, 7 (voir figure 4). Cette feuille découpée est roulée autour d'un axe X-X′ (voir figures 1 et 2) destiné à correspondre à celui de l'élément chauffant 2.In the embodiment of the appended figures, the electrical connector 1 for the heating element 2 consists of a cut metal sheet having slots 3, 4, 5, 6, 7 (see Figure 4). This cut sheet is rolled around an axis X-X ′ (see FIGS. 1 and 2) intended to correspond to that of the heating element 2.

On voit notamment sur les figures 1 à 4, que la partie 8 de la feuille présentant des créneaux 3, 4, 5, 6, 7 est prolongée par une partie en forme de languette 9 roulée autour de l'axe X-X′ précité et destinée à coiffer l'extrémité 2a de l'élément chauffant 2, comme indiqué sur la figure 6.It can be seen in particular in FIGS. 1 to 4, that the part 8 of the sheet having slots 3, 4, 5, 6, 7 is extended by a tongue-shaped part 9 rolled around the above-mentioned axis XX 'and intended to cap the end 2a of the heating element 2, as indicated in FIG. 6.

Comme indiqué sur la figure 4, les créneaux 3, 4, 5, 6, 7 et la languette 9 s'étendant, avant roulage de la feuille perpendiculairement à l'axe X-X′ autour duquel la feuille découpée est ensuite roulée.As shown in Figure 4, the slots 3, 4, 5, 6, 7 and the tongue 9 extending, before rolling the sheet perpendicular to the axis X-X ′ around which the cut sheet is then rolled.

On voit également notamment sur cette figure 4 que la partie formant languette 9 est reliée à la partie 8 présentant des créneaux 3, 4, 5, 6, 7 par une patte 10 dont la largeur mesurée dans la direction de la longueur de la languette 9 est inférieure à la hauteur des créneaux 3, 4, 5, 6, 7.It can also be seen in particular in this FIG. 4 that the tongue-forming part 9 is connected to the part 8 having slots 3, 4, 5, 6, 7 by a tab 10 whose width measured in the direction of the length of the tongue 9 is less than the height of slots 3, 4, 5, 6, 7.

Par ailleurs, les dimensions de la feuille découpée sont telles que lorsqu'elle est roulée autour dudit axe X-X′, les extrémités opposées de la languette 9 et les sommets opposés des créneaux 3, 4, 5, 6, 7 sont presque en contact (voir les figures 1 et 3).Furthermore, the dimensions of the cut sheet are such that when it is rolled around said axis XX ′, the opposite ends of the tongue 9 and the opposite tops of the slots 3, 4, 5, 6, 7 are almost in contact ( see Figures 1 and 3).

La feuille à partir de laquelle est réalisé le connecteur selon l'invention est de préférence en métal ou alliage bon conducteur de la chaleur et de l'électricité et ayant une certaine élasticité tel que le laiton.The sheet from which the connector according to the invention is made is preferably made of metal or alloy which is a good conductor of heat and electricity and has a certain elasticity such as brass.

Les figures 1 et 5 montrent que le connecteur 1 est associé à un conducteur d'alimentation électrique constitué par une lame métallique découpée 11 de même nature que le connecteur 1. Cette lame 11 présente deux languettes découpées 12, 13 repliées et recourbées l'une vers l'autre de façon à définir entre elles une surface sensiblement cylindrique 14a (voir figure 5) adaptée à celle définie par la partie roulée 8 présentant les créneaux du connecteur 1.Figures 1 and 5 show that the connector 1 is associated with an electrical power supply conductor constituted by a cut metal blade 11 of the same kind as the connector 1. This blade 11 has two cut tabs 12, 13 folded and bent one towards each other so as to define therebetween a substantially cylindrical surface 14a (see FIG. 5) adapted to that defined by the rolled part 8 having the slots of the connector 1.

On voit également sur les figures 1 et 5 que les extrémités des languettes 12, 13 présentent une partie repliée vers l'extérieur 12a, 13a de façon à faciliter la fixation de la partie 8 présentant les créneaux du connecteur 1, par emboîtement de celle-ci entre les deux languettes 12, 13, dans le sens de la flèche F₁ représentée sur la figure 1.It can also be seen in FIGS. 1 and 5 that the ends of the tongues 12, 13 have a part folded outwards 12a, 13a so as to facilitate the fixing of the part 8 having the slots of the connector 1, by fitting it ci between the two tongues 12, 13, in the direction of the arrow F₁ represented in FIG. 1.

Cette forme est connue sous le nom de "lyre".This form is known as "lyre".

Par ailleurs, la partie 11a de la lame 11 adjacente aux deux languettes 12, 13 présente une courbure dont la convexité est dirigée à l'opposé des languettes 12, 13 et qui suit sensiblement la courbure de ces languettes 12, 13. Ainsi, lorsque la partie 8 du connecteur 1 est encliquetée entre les languettes 12, 13, le profil de celles-ci ainsi que la partie 11a de la lame située entre ces dernières épouse parfaitement le contour cylindrique de la partie 8 du connecteur.Furthermore, the part 11a of the blade 11 adjacent to the two tongues 12, 13 has a curvature, the convexity of which is directed opposite the tongues 12, 13 and which substantially follows the curvature of these tongues 12, 13. Thus, when the part 8 of the connector 1 is snapped between the tongues 12, 13, the profile of these as well as the part 11a of the blade situated between the latter perfectly matches the cylindrical contour of the part 8 of the connector.

Sur la figure 6, le connecteur 1 est fixé à l'une des extrémités 2a d'un élément chauffant 2 comprenant un tube 14 en matière électriquement isolante telle que de la stéatite, autour duquel est enroulé hélicoïdalement un fil résistif chauffant 15.In FIG. 6, the connector 1 is fixed to one of the ends 2a of a heating element 2 comprising a tube 14 of electrically insulating material such as soapstone, around which a resistive heating wire 15 is helically wound.

On voit sur cette figure, que la partie formant languette 9 roulée autour de l'axe X-X′ est emboîtée sur l'extrémité 2a du tube 14 et que le fil résistif 15 est enroulé autour de la partie 9 formant languette selon des spires 15a plus serrées que sur le reste du tube 14. Cette extrémité à spires resserrées 15a du fil résistif 15 est fixée sur la partie 9 par soudage.We see in this figure, that the tongue forming part 9 rolled around the axis XX ′ is fitted onto the end 2a of the tube 14 and that the resistive wire 15 is wound around the tongue forming part 9 according to turns 15a more tightened only on the rest of the tube 14. This end with tight turns 15a of the resistive wire 15 is fixed on the part 9 by welding.

Par ailleurs, un capuchon 16 en matière isolante est fixé autour de la partie 9 formant languette et de la partie à spires resserrées 15a du fil résistif et en partie autour de la partie 8 présentant des créneaux.Furthermore, a cap 16 of insulating material is fixed around the part 9 forming a tongue and the part with tight turns 15a of the resistive wire and partly around the part 8 having slots.

Les principaux avantages techniques du connecteur électrique que l'on vient de décrire sont les suivants :The main technical advantages of the electrical connector just described are as follows:

Tout d'abord, les créneaux 3, 4, 5, 6, 7 de la partie roulée 8 du connecteur définissent entre eux des ouvertures par lesquelles l'air peut circuler. Cette circulation d'air assure un refroidissement de l'ensemble du connecteur 1, de sorte que celui-ci ne risque pas de s'échauffer excessivement du fait de son contact direct avec le fil chauffant 15.First of all, the slots 3, 4, 5, 6, 7 of the rolled part 8 of the connector define between them openings through which air can circulate. This circulation of air provides cooling of the entire connector 1, so that it does not risk excessive heating due to its direct contact with the heating wire 15.

Par ailleurs, grâce à ce refroidissement les dilatations et contractions thermiques subies par le connecteur 1 à la suite d'une multitude de cycles d'échauffement et de refroidissement ne risquent pas d'affecter les propriétés mécaniques de connecteur de sorte qu une parfaite liaison mécanique et une excellente liaison électrique entre le connecteur 1 et le fil chauffant 15 sont maintenues pendant une très longue durée de service.Furthermore, thanks to this cooling, the thermal expansions and contractions undergone by the connector 1 following a multitude of heating and cooling cycles are not likely to affect the mechanical properties of the connector so that a perfect mechanical connection and an excellent electrical connection between the connector 1 and the heating wire 15 is maintained for a very long service life.

D'autre part, la fabrication du connecteur 1 est extrêmement simple puisqu'elle est réalisée par simple découpage et roulage d'une feuille métallique qui sont aisément automatisables.On the other hand, the manufacture of the connector 1 is extremely simple since it is carried out by simple cutting and rolling of a metal sheet which are easily automated.

En outre, le montage du connecteur 1 sur l'élément chauffant 2 est également simple et automatisable, puisqu'il consiste simplement en un emboîtement suivant l'axe X-X′.In addition, the mounting of the connector 1 on the heating element 2 is also simple and automated, since it simply consists of a fitting along the axis X-X ′.

Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation que l'on vient de décrire et on peut apporter à celui-ci de nombreuses modifications sans sortir du cadre de l'invention.Of course, the invention is not limited to the embodiment which has just been described and many modifications can be made to it without departing from the scope of the invention.

C'est ainsi que la partie 8 du connecteur peut ne pas être roulée, et rester plate, telle qu'issue du découpage. Les languettes 12 et 13, au lieu d'être conformées en lyre, sont alors conformées en mâchoires, le connecteur s'engageant entre celles-ci selon le système des interrupteurs à couteaux.Thus the part 8 of the connector may not be rolled, and remain flat, such as after cutting. The tongues 12 and 13, instead of being shaped as a lyre, are then shaped as jaws, the connector engaging between them according to the knife switch system.

Claims (11)

1. Connecteur électrique (1) pour élément chauffant (2) comprenant des moyens pour le fixer à une extrémité (2a) dudit élément chauffant (2) et pour le connecter à un conducteur d'alimentation électrique (11), caractérisé en ce qu'il est constitué d'une feuille de métal découpée présentant des créneaux (3, 4, 5, 6, 7), cette feuille découpée étant partiellement roulée autour d'un axe (X-X′).1. Electrical connector (1) for heating element (2) comprising means for fixing it to one end (2a) of said heating element (2) and for connecting it to an electrical supply conductor (11), characterized in that 'It consists of a cut metal sheet having slots (3, 4, 5, 6, 7), this cut sheet being partially rolled around an axis (XX ′). 2. Connecteur conforme à la revendication 1, caractérisé en ce que la partie (8) de la feuille présentant des créneaux (3, 4, 5, 6, 7) est prolongée par une partie en forme de languette (9) roulée autour de l'axe (X-X′) précité et destinée à coiffer l'extrémité (2a) de l'élément chauffant (2).2. Connector according to claim 1, characterized in that the part (8) of the sheet having slots (3, 4, 5, 6, 7) is extended by a tongue-shaped part (9) rolled around the axis (XX ′) mentioned above and intended to cover the end (2a) of the heating element (2). 3. Connecteur conforme à la revendication 2, caractérisé en ce que la partie (8) de la feuille présentant des créneaux (3, 4, 5, 6, 7) est roulée autour de l'axe (XX′).3. Connector according to claim 2, characterized in that the part (8) of the sheet having slots (3, 4, 5, 6, 7) is rolled around the axis (XX ′). 4. Connecteur conforme à l'une des revendication 2 ou 3, caractérisé en ce que les créneaux (3, 4, 5, 6, 7) et la languette (9) s'étendent, avant roulage de la feuille perpendiculairement à l'axe (X-X′) autour duquel la feuille découpée est ensuite roulée.4. Connector according to one of claims 2 or 3, characterized in that the slots (3, 4, 5, 6, 7) and the tongue (9) extend, before rolling the sheet perpendicular to the axis (XX ′) around which the cut sheet is then rolled. 5. Connecteur conforme à l'une des revendications 2 à 4, caractérisé en ce que la partie (9) formant languette est reliée à la partie présentant des créneaux par une patte (10) dont la largeur mesurée dans la direction de la longueur de la languette (9) est inférieure à la hauteur des créneaux.5. Connector according to one of claims 2 to 4, characterized in that the part (9) forming a tongue is connected to the part having slots by a tab (10) whose width measured in the direction of the length of the tongue (9) is less than the height of the slots. 6. Connecteur conforme à l'une des revendications 2 à 5, caractérisé en ce que les dimensions de la feuille découpée sont telles que lorsqu'elle est roulée autour dudit axe (X-X′), les extrémités opposées de la languette (9) et les sommets opposés des créneaux (3, 4, 5, 6, 7) sont presque en contact.6. Connector according to one of claims 2 to 5, characterized in that the dimensions of the cut sheet are such that when it is rolled around said axis (XX ′), the opposite ends of the tongue (9) and the opposite tops of the slots (3, 4, 5, 6, 7) are almost in contact. 7. Connecteur conforme à l'une des revendications 1 à 6, associé à un conducteur d'alimentation électrique constitué par une lame métallique découpée (11), caractérisé en ce que la lame (11) présente deux languettes (12, 13) découpées repliées et recourbées l'une vers l'autre de façon à définir entre elles une surface sensiblement cylindrique (14a) adaptée à celle définie par la partie roulée (8) présentant les créneaux du connecteur.7. Connector according to one of claims 1 to 6, associated with an electrical power supply conductor constituted by a cut metal blade (11), characterized in that the blade (11) has two cut tabs (12, 13) folded and curved towards each other so as to define therebetween a substantially cylindrical surface (14a) adapted to that defined by the rolled part (8) having the slots of the connector. 8. Connecteur conforme à la revendication 7, caractérisé en ce que les extrémités des languettes (12, 13) présentent une partie repliée (12a, 13a) vers l'extérieur de façon à faciliter la fixation de la partie (8) présentant les créneaux du connecteur, par emboîtement de celle-ci entre les deux languettes (12, 13).8. Connector according to claim 7, characterized in that the ends of the tongues (12, 13) have a folded part (12a, 13a) outwards so as to facilitate the fixing of the part (8) having the slots of the connector, by fitting it between the two tabs (12, 13). 9. Connecteur conforme à l'une des revendications 7 ou 8, caractérisé en ce que la partie (11a) de la lame (11) adjacente aux deux languettes (12, 13) présente une courbure dont la convexité est dirigée à l'opposé des languettes (12, 13) et qui suit sensiblement la courbure de ces dernières.9. Connector according to one of claims 7 or 8, characterized in that the part (11a) of the blade (11) adjacent to the two tongues (12, 13) has a curvature whose convexity is directed opposite tongues (12, 13) and which substantially follows the curvature of the latter. 10. Connecteur conforme à l'une des revendications 2 à 9, fixé à l'une des extrémités (2a) d'un élément chauffant (2) comprenant un tube (14) en matière électriquement isolante autour duquel est enroulé hélicoïdalement un fil résistif chauffant (15), caractérisé en ce que la partie formant languette (9) roulée autour dudit axe (X-X′) est emboîtée sur l'extrémité (2a) du tube, en ce que le fil résistif (15) est enroulé autour de ladite partie formant languette (9) et est fixé sur celle-ci par soudage.10. Connector according to one of claims 2 to 9, fixed to one end (2a) of a heating element (2) comprising a tube (14) of electrically insulating material around which is wound helically a resistive wire heater (15), characterized in that the tongue portion (9) rolled around said axis (XX ′) is fitted onto the end (2a) of the tube, in that the resistive wire (15) is wound around said tab part (9) and is fixed thereon by welding. 11. Connecteur conforme à la revendication 10, caractérisé en ce qu'un capuchon (16) en matière isolante est fixé autour de ladite partie (9) formant languette et dudit fil enroulé (15a) et soudé et en partie autour de la partie (8) présentant des créneaux.11. A connector according to claim 10, characterized in that a cap (16) made of insulating material is fixed around said part (9) forming a tongue and said wound wire (15a) and welded and partly around part ( 8) with slots.
EP19900400211 1989-01-27 1990-01-24 Electrical connector for a heating element Expired - Lifetime EP0380417B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94116116A EP0635992B1 (en) 1989-01-27 1990-01-24 Heating element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901017 1989-01-27
FR8901017A FR2642573B1 (en) 1989-01-27 1989-01-27 ELECTRICAL CONNECTOR FOR HEATING ELEMENT

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP94116116A Division EP0635992B1 (en) 1989-01-27 1990-01-24 Heating element
EP94116116.8 Division-Into 1994-10-12

Publications (2)

Publication Number Publication Date
EP0380417A1 true EP0380417A1 (en) 1990-08-01
EP0380417B1 EP0380417B1 (en) 1995-04-26

Family

ID=9378170

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19900400211 Expired - Lifetime EP0380417B1 (en) 1989-01-27 1990-01-24 Electrical connector for a heating element
EP94116116A Expired - Lifetime EP0635992B1 (en) 1989-01-27 1990-01-24 Heating element

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94116116A Expired - Lifetime EP0635992B1 (en) 1989-01-27 1990-01-24 Heating element

Country Status (4)

Country Link
EP (2) EP0380417B1 (en)
DE (3) DE69032705T2 (en)
ES (2) ES2097714T3 (en)
FR (1) FR2642573B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381976A2 (en) * 1989-02-10 1990-08-16 Firma Friedrich Würth Heating element
EP0686368A1 (en) * 1994-06-08 1995-12-13 Seb S.A. Pivotable resistance heater for electric cooking apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2626647B1 (en) 2011-03-30 2014-06-11 Eberspächer catem GmbH & Co. KG Method for producing a plate element comprising a circuit board

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR403305A (en) * 1908-09-15 1909-10-30 Charles Orme Bastian Improvements in methods and devices used to transform electrical energy into heat energy
US1538972A (en) * 1925-02-17 1925-05-26 Conradty Ottmar Electric heater
GB1267151A (en) * 1970-01-20 1972-03-15
FR2592264A1 (en) * 1985-09-27 1987-06-26 Chauffe Eau Cie Indle Heating resistor device with fast connecting system, and apparatus provided with such an apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759946A (en) * 1954-03-09 1956-10-24 Emi Ltd Improvements in or relating to electric resistance heating elements
US3300621A (en) * 1964-04-22 1967-01-24 Fischer Karl Electric hotplate and method of making same
DE7634006U1 (en) * 1976-10-28 1978-04-20 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart FLAT RADIATOR FOR AN ELECTRIC BREAD ROESTER OR TOASTER
DE3903961A1 (en) * 1989-02-10 1990-08-16 Wuerth Friedrich Fa HEATING ELEMENT

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR403305A (en) * 1908-09-15 1909-10-30 Charles Orme Bastian Improvements in methods and devices used to transform electrical energy into heat energy
US1538972A (en) * 1925-02-17 1925-05-26 Conradty Ottmar Electric heater
GB1267151A (en) * 1970-01-20 1972-03-15
FR2592264A1 (en) * 1985-09-27 1987-06-26 Chauffe Eau Cie Indle Heating resistor device with fast connecting system, and apparatus provided with such an apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381976A2 (en) * 1989-02-10 1990-08-16 Firma Friedrich Würth Heating element
EP0381976A3 (en) * 1989-02-10 1991-11-21 Firma Friedrich Würth Heating element
EP0686368A1 (en) * 1994-06-08 1995-12-13 Seb S.A. Pivotable resistance heater for electric cooking apparatus
FR2720917A1 (en) * 1994-06-08 1995-12-15 Seb Sa Mobile heating element for electric cooking appliance.

Also Published As

Publication number Publication date
EP0635992A3 (en) 1995-09-20
EP0635992B1 (en) 1998-10-14
DE69018843D1 (en) 1995-06-01
DE635992T1 (en) 1997-06-26
EP0635992A2 (en) 1995-01-25
ES2072994T3 (en) 1995-08-01
FR2642573B1 (en) 1993-09-17
ES2097714T3 (en) 1998-12-16
DE69018843T2 (en) 1995-12-07
DE69032705D1 (en) 1998-11-19
ES2097714T1 (en) 1997-04-16
EP0380417B1 (en) 1995-04-26
DE69032705T2 (en) 1999-04-22
FR2642573A1 (en) 1990-08-03

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