EP0380417A1 - Elektrischer Anschluss für ein Heizelement - Google Patents

Elektrischer Anschluss für ein Heizelement 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
Authority
EP
European Patent Office
Prior art keywords
slots
connector
connector according
around
tongue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90400211A
Other languages
English (en)
French (fr)
Other versions
EP0380417B1 (de
Inventor
Roger Eisenberg
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Priority to EP94116116A priority Critical patent/EP0635992B1/de
Publication of EP0380417A1 publication Critical patent/EP0380417A1/de
Application granted granted Critical
Publication of EP0380417B1 publication Critical patent/EP0380417B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—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.

Landscapes

  • Resistance Heating (AREA)
EP19900400211 1989-01-27 1990-01-24 Elektrischer Anschluss für ein Heizelement Expired - Lifetime EP0380417B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94116116A EP0635992B1 (de) 1989-01-27 1990-01-24 Heizelement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901017 1989-01-27
FR8901017A FR2642573B1 (fr) 1989-01-27 1989-01-27 Connecteur electrique pour element chauffant

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP94116116.8 Division-Into 1990-01-24
EP94116116A Division EP0635992B1 (de) 1989-01-27 1990-01-24 Heizelement

Publications (2)

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

Family

ID=9378170

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94116116A Expired - Lifetime EP0635992B1 (de) 1989-01-27 1990-01-24 Heizelement
EP19900400211 Expired - Lifetime EP0380417B1 (de) 1989-01-27 1990-01-24 Elektrischer Anschluss für ein Heizelement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP94116116A Expired - Lifetime EP0635992B1 (de) 1989-01-27 1990-01-24 Heizelement

Country Status (4)

Country Link
EP (2) EP0635992B1 (de)
DE (3) DE69032705T2 (de)
ES (2) ES2097714T3 (de)
FR (1) FR2642573B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381976A2 (de) * 1989-02-10 1990-08-16 Firma Friedrich Würth Heizelement
EP0686368A1 (de) * 1994-06-08 1995-12-13 Seb S.A. Bewegliches Heizelement für elektrisches Gargerät

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505931B2 (de) 2011-03-30 2022-01-12 Eberspächer catem GmbH & Co. KG Elektrische Heizvorrichtung mit einem Leiterbahnen aufweisenenden Plattenelement und Verfahren zur Herstellung eines solchen Plattenelementes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR403305A (fr) * 1908-09-15 1909-10-30 Charles Orme Bastian Perfectionnements apportés aux procédés et aux dispositifs servant à transformer l'énergie électrique en énergie calorifique
US1538972A (en) * 1925-02-17 1925-05-26 Conradty Ottmar Electric heater
GB1267151A (de) * 1970-01-20 1972-03-15
FR2592264A1 (fr) * 1985-09-27 1987-06-26 Chauffe Eau Cie Indle Dispositif a resistance chauffante a systeme de connexion rapide, et appareil muni d'un tel appareil

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 (de) * 1976-10-28 1978-04-20 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Flachheizkoerper fuer einen elektrischen brotroester oder einen toaster
DE3903961A1 (de) * 1989-02-10 1990-08-16 Wuerth Friedrich Fa Heizelement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR403305A (fr) * 1908-09-15 1909-10-30 Charles Orme Bastian Perfectionnements apportés aux procédés et aux dispositifs servant à transformer l'énergie électrique en énergie calorifique
US1538972A (en) * 1925-02-17 1925-05-26 Conradty Ottmar Electric heater
GB1267151A (de) * 1970-01-20 1972-03-15
FR2592264A1 (fr) * 1985-09-27 1987-06-26 Chauffe Eau Cie Indle Dispositif a resistance chauffante a systeme de connexion rapide, et appareil muni d'un tel appareil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381976A2 (de) * 1989-02-10 1990-08-16 Firma Friedrich Würth Heizelement
EP0381976A3 (de) * 1989-02-10 1991-11-21 Firma Friedrich Würth Heizelement
EP0686368A1 (de) * 1994-06-08 1995-12-13 Seb S.A. Bewegliches Heizelement für elektrisches Gargerät
FR2720917A1 (fr) * 1994-06-08 1995-12-15 Seb Sa Elément chauffant mobile pour appareil électrique de cuisson.

Also Published As

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

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