EP0380417A1 - Elektrischer Anschluss für ein Heizelement - Google Patents
Elektrischer Anschluss für ein Heizelement Download PDFInfo
- 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
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 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)
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)
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)
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)
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)
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 |
-
1989
- 1989-01-27 FR FR8901017A patent/FR2642573B1/fr not_active Expired - Lifetime
-
1990
- 1990-01-24 DE DE1990632705 patent/DE69032705T2/de not_active Expired - Fee Related
- 1990-01-24 DE DE1990618843 patent/DE69018843T2/de not_active Expired - Lifetime
- 1990-01-24 EP EP94116116A patent/EP0635992B1/de not_active Expired - Lifetime
- 1990-01-24 ES ES94116116T patent/ES2097714T3/es not_active Expired - Lifetime
- 1990-01-24 EP EP19900400211 patent/EP0380417B1/de not_active Expired - Lifetime
- 1990-01-24 DE DE1994116116 patent/DE635992T1/de active Pending
- 1990-01-24 ES ES90400211T patent/ES2072994T3/es not_active Expired - Lifetime
Patent Citations (4)
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)
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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