EP0380417B1 - Elektrischer Anschluss für ein Heizelement - Google Patents

Elektrischer Anschluss für ein Heizelement Download PDF

Info

Publication number
EP0380417B1
EP0380417B1 EP19900400211 EP90400211A EP0380417B1 EP 0380417 B1 EP0380417 B1 EP 0380417B1 EP 19900400211 EP19900400211 EP 19900400211 EP 90400211 A EP90400211 A EP 90400211A EP 0380417 B1 EP0380417 B1 EP 0380417B1
Authority
EP
European Patent Office
Prior art keywords
tongue
connector
tongues
sheet
rolled
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
EP19900400211
Other languages
English (en)
French (fr)
Other versions
EP0380417A1 (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

Links

Images

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 connection system for an electrical heating element, the system comprising an electrical connector 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.
  • Document FR-A-2 592 264 describes an electrical connection system for an electrical heating element, the system comprising an electrical connector comprising means for fixing it to one end of said heating element and for connecting it to an electrical supply conductor , this connector being made up of a cut metal sheet having slots, this sheet being rolled around an axis corresponding to that of the heating element, the part of the sheet having slots being extended by a shaped portion tongue rolled around the aforementioned axis.
  • this heating element is only suitable for certain types of heating devices.
  • it does not allow easy assembly and disassembly of the connector and the fixing of the different parts between them is not sufficiently reliable to be suitable for certain devices.
  • Document FR-A-403,305 describes a heating element provided with a U-shaped part intended to receive a solid cylindrical surface. However it produces an insufficient heat exchange by air.
  • Document GB-A-1 267 151 describes a heating element consisting of a tube of insulating material around which a resistive wire is wound, but the connector of which also produces an insufficient heat exchange.
  • the object of the present invention is to create an electrical connection system which overcomes these disadvantages while being of inexpensive manufacturing cost compatible with very large series production.
  • connection system is characterized in that the tongue-shaped part of the electrical connector is fitted onto one of the ends of a tube of said heating element and in that the electrical supply conductor is constituted by a cut metal strip having two cut tabs, folded and curved towards one another so as to define between them a U-shape whose bottom has a substantially cylindrical surface adapted to that defined by the part having the slots so that the latter can be directly connected by interlocking to the supply conductor.
  • connection system makes it possible to carry out an effective heat exchange between the connector and the surrounding air so that excessive heating is avoided, which could alter the mechanical and electrical connection between the connector and the heating element.
  • the tongue-shaped part makes it easier to fix the connector to the end of the heating element.
  • 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 slots 3, 4, 5, 6, 7 and the tongue 9 extend, before rolling the sheet, perpendicular to the axis X-X ′ around which the cut sheet is then rolled.
  • 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 away from 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 made 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 ensures cooling of the entire connector 1, so that there is no risk of it becoming excessively hot 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 an interlocking along the axis X-X ′.

Landscapes

  • Resistance Heating (AREA)

Claims (8)

  1. Elektrisches Anschlußsystem für elektrische Heizelemente (2), mit einem elektrischen Steckverbinder (1), welcher Befestigungsmittel zu seiner Befestigung am einen Ende (2a) des Heizelements (2) und Anschlußmittel zu seinem Anschluß an einem Stromversorgungsleiter (11) umfaßt, wobei der Steckverbinder aus einem mit Zinnen (3), (4), (5), (6), (7), versehenen Meltallblattzuschnitt besteht, welcher um eine der Achse des Heizelements entsprechende Achse (X-X′) herum gebogen, bzw. gerollt ist, wobei der mit den Zinnen versehene Teil (8) des Metallblatts eine zungenförmige, um die Achse (X-X′) herum gebogene Verlängerung (9) aufweist, dadurch gekennzeichnet, daß die zungenförmige Verlängerung (9) des elektrischen Steckverbinders (1) auf eine der Enden (2a) der Röhre (14) des Heizelements (2) aufgesetzt ist und daß der Stromversorgungsleiter (11) aus einem zugeschnittenen Metallstreifen (11) mit zwei ausgeschnittenen Zungen (12), (13) besteht, welche derart zueinander gerichtet umgebogen sind, daß sie zwischen sich einen annähemd U-förmigen Raum mit einer annähernd zylindrischen Grundfläche (14a) einschließen, welche der Form des mit den Zinnen (3), (4), (5), (6), (7) versehenen Teils (8) angepaßt ist, so daß der Teil (8) durch Einstecken in den Stromversorgungsleiter (11) direkt angeschlossen werden kann.
  2. System nach Anspruch 1, dadurch gekennzeichnet, daß die Zinnen (3), (4), (5), (6), (7) und die zungenförmige Verlängerung (9) vor dem Zusammenrollen des Blattes senkrecht zur Achse (X-X′), um welche das zugeschnittene Blatt anschließend gerollt wird, ausgerichtet sind.
  3. System nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die zungenförmige Verlängerung (9) mit dem mit den Zinnen versehenen Teil über einen Steg (10) verbunden ist, dessen in Längsrichtung der zungenförmigen Verlängerung (9) gemessene Breite kleiner als die Höhe der Zinnen ist.
  4. System nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Blattzuschnitt so bemessen ist, daß nach Umbiegen, bzw. Zusammenrollen des Blattzuschnitts um die Achse (X-X′), die gegenüberliegenden Enden der zungenförmigen Verlängerung (9) und die gegenüberliegenden Höchststellen der Zinnen (3), (4), (5), (6), (7) fast mit einander in Berührung kommen.
  5. System nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Zungen (12), (13) des Streifens (11) nach außen gebogene Enden (12a), (13a) aufweisen, wodurch die Befestigung des Steckverbinders durch Einschieben des mit den Zinnen versehenen Teils (8) zwischen die Zungen (12), (13) erleichtert wird.
  6. System nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der den Zungen (12), (13) benachbarte Bereich (11a) des Metallstreifens (11) eine den Zungen gegenüber in entgegengesetzte Richtung nach außen gewölbte Form aufweist, wobei die Wölbung annähernd derjenigen der Zungen (12), (13) entspricht.
  7. System nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Röhre (14) aus elektrisch nicht leitendem Material besteht, daß ein Widerstandsheizfaden (15) spiralförmig um die Röhre (14) gewickelt ist und daß eines der Enden (15a) des Heizfadens um die zungenförmige Verlängerung (9) des Steckverbinders herum gewickelt und auf dieser mittels Verschweißung befestigt ist.
  8. System nach Anspruch 7, dadurch gekennzeichnet, daß eine Kappe (16) aus Isoliermaterial auf der zungenförmigen Verlängerung (9) des Steckverbinders, auf dem Ende (15a) des Widerstandsheizfadens (15) und teilweise auf dem mit den Zinnen (3), (4), (5), (6), (7) versehenen Teil (8) befestigt ist.
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
FR8901017A FR2642573B1 (fr) 1989-01-27 1989-01-27 Connecteur electrique pour element chauffant
FR8901017 1989-01-27

Related Child Applications (2)

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

Publications (2)

Publication Number Publication Date
EP0380417A1 EP0380417A1 (de) 1990-08-01
EP0380417B1 true 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) ES2072994T3 (de)
FR (1) FR2642573B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903961A1 (de) * 1989-02-10 1990-08-16 Wuerth Friedrich Fa Heizelement
FR2720917B1 (fr) * 1994-06-08 1996-07-26 Seb Sa Elément chauffant mobile pour appareil électrique de cuisson.
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

Family Cites Families (8)

* 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
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
GB1267151A (de) * 1970-01-20 1972-03-15
DE7634006U1 (de) * 1976-10-28 1978-04-20 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Flachheizkoerper fuer einen elektrischen brotroester oder einen toaster
FR2592264B1 (fr) * 1985-09-27 1989-06-02 Chauffe Eau Cie Indle Dispositif a resistance chauffante a systeme de connexion rapide, et appareil muni d'un tel appareil
DE3903961A1 (de) * 1989-02-10 1990-08-16 Wuerth Friedrich Fa Heizelement

Also Published As

Publication number Publication date
EP0380417A1 (de) 1990-08-01
DE69032705T2 (de) 1999-04-22
ES2097714T1 (es) 1997-04-16
EP0635992B1 (de) 1998-10-14
DE635992T1 (de) 1997-06-26
FR2642573A1 (fr) 1990-08-03
ES2072994T3 (es) 1995-08-01
EP0635992A3 (de) 1995-09-20
DE69018843D1 (de) 1995-06-01
FR2642573B1 (fr) 1993-09-17
EP0635992A2 (de) 1995-01-25
DE69018843T2 (de) 1995-12-07
ES2097714T3 (es) 1998-12-16
DE69032705D1 (de) 1998-11-19

Similar Documents

Publication Publication Date Title
EP3208892B1 (de) Elektrischer anschluss, der eine vielzahl von elektrisch leitenden lamellen umfasst
EP0776453A1 (de) Vorrichtung zum elektrischen anschluss eines lüfteraggregates für den wärmetauscher eines kraftfahrzeuges
EP0378466B1 (de) Elektrischer Steckerstift
FR3032388A1 (fr) Dispositif de chauffage electrique
EP0418167B1 (de) Schnellverbinder für verlotete Kabelrinne aus Metalldrahtgitter
EP0380417B1 (de) Elektrischer Anschluss für ein Heizelement
FR2524212A1 (fr) Collecteur pour moteur electrique miniature
FR2780212A1 (fr) Moteur electrique comprenant un agencement de liaison
EP2518831B1 (de) Anschlussmuffe für elektrische Kabel
EP0495719B1 (de) Zigarettenanzünder, vorzugweise für Kraftfahrzeuge
EP0664578A1 (de) Verbinder für Koaxialkabel
WO2021009432A1 (fr) Connecteur électrique métallique pour bande conductrice électrique souple et ensemble bande conductrice connecteur associé
FR2512594A1 (fr) Element de contacts electriques pour languette meplate
EP0767743B1 (de) Heizstopfen für zigarettenanzünder, insbesondere für kraftfahrzeuge
FR2608883A1 (fr) Element resistant chauffant decoupe pour radiateur electrique, son procede de fabrication et radiateur s'y rapportant
FR2631427A1 (fr) Element chauffant pour un radiateur electrique utilise pour le chauffage de locaux, notamment de type continu
FR2530912A1 (fr) Raccordement pour un corps de chauffe a rayonnement, avantageusement isole par des perles, en particulier pour un chauffage de four
EP0552996A1 (de) Elektrische Steckverbindungsbuchse
FR2758213A1 (fr) Organe de contact electrique femelle
FR2683100A1 (fr) Prise de courant a disjoncteur thermique rearmable, notamment pour vehicules automobiles.
EP0768730A1 (de) Elektrische Schaltung aus mindestens einem Band hergestellt, insbesondere für Fahrzeuganzeigelampen, mit mindestens einem Steckelement das durch Biegen hergestellt wurde
EP0470882A1 (de) Elektrischer Schneidklemmenkontakt
FR2656469A1 (fr) Borne de contact electrique et connecteur en comportant application.
FR2746973A1 (fr) Ensemble comprenant une platine porte-balais pour machine el ectrique tournante et un organe de blocage des balais
CA2302823A1 (fr) Connecteur pour appareil electromenager

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900127

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT

17Q First examination report despatched

Effective date: 19930329

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

XX Miscellaneous (additional remarks)

Free format text: TEILANMELDUNG 94116116.8 EINGEREICHT AM 24/01/90.

REF Corresponds to:

Ref document number: 69018843

Country of ref document: DE

Date of ref document: 19950601

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950622

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2072994

Country of ref document: ES

Kind code of ref document: T3

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SEB S.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020123

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030124

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040115

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050125

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050125

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090203

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20100124