EP0635992B1 - Element chauffant - Google Patents
Element chauffant Download PDFInfo
- Publication number
- EP0635992B1 EP0635992B1 EP94116116A EP94116116A EP0635992B1 EP 0635992 B1 EP0635992 B1 EP 0635992B1 EP 94116116 A EP94116116 A EP 94116116A EP 94116116 A EP94116116 A EP 94116116A EP 0635992 B1 EP0635992 B1 EP 0635992B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- turns
- heater element
- heating element
- heating
- 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
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 a heating element and an electrical connector for a heating element comprising means for fixing it to one end of said element heating and to connect it to a power conductor electric.
- Such heating elements are used in particular in toaster.
- These heating elements generally include a bar or tube of electrically insulating material around from which is wound helically a resistive heating wire.
- This resistive heating wire is brought to a very high temperature when supplied with electric current.
- the object of the present invention is to create an element heater that meets the above conditions while being of an inexpensive manufacturing cost compatible with a very large series production.
- this heating element is characterized in that the resistive heating wire comprises at minus one coil end fixed by welding to the connector, the coil end being wound helically.
- the connector electric 1 for the heating element 2 consists of a cut metal sheet with slots 3, 4, 5, 6, 7 (see Figure 4). This cut sheet is rolled around an axis x-x '(see Figures 1 and 2) intended to correspond to that of the heating element 2.
- slots 3, 4, 5, 6, 7, and the tongue 9 extend, before rolling the sheet perpendicular to the x-x 'axis around which the sheet the cut is then rolled.
- the tongue part 9 is connected to part 8 having slots 3, 4, 5, 6, 7 by a tab 10 of which the width measured in the direction of the length of the tongue 8 is less than the height of the slots 3, 4, 5, 6, 7.
- the dimensions of the cut sheet are such that when it is rolled around said axis x-x ', the opposite ends of tongue 9 and opposite tops 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 preferably made of metal or alloy good conductor of heat and electricity and having a certain elasticity such as brass.
- FIG. 1 and 5 show that connector 1 is associated with an electrical power supply conductor by a cut metal blade 11 of the same kind as the connector 1.
- This blade 11 has two tabs cut 12, 13, folded and curved towards each other so as to define substantially a surface therebetween cylindrical 14a (see FIG. 5) adapted to that defined by the rolled part 8 having the slots of the connector 1.
- part 11a of the blade 11 adjacent to the two tabs 12, 13, has a curvature
- the convexity is directed opposite the tongues 12, 13, and which substantially follows the curvature of these tongues 12, 13. So when part 8 of connector 1 is snapped between the tongues 12, 13, the profile thereof as well as part 11a of the blade located between these latter wife perfectly the cylindrical outline of part 8 of the connector.
- the connector 1 is fixed to one of the ends 2a of a heating element 2 comprising a tube 14 electrically insulating material such as soapstone, around which a resistive wire is helically wound heating 15.
- 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 of part 8 presenting slots.
- slots 3, 4, 5, 6, 7 of the game rolled 8 of the connector defining between them openings through which air can circulate.
- This air circulation ensures cooling of the entire connector 1, so that it does not risk no overheating due to direct contact with the heating wire 15.
- connector 1 is extremely simple since it is carried out by simple cutting and rolling of a metal sheet which are easily automated.
- connector 1 on the element heater 2 is also simple and automatable, since simply consists of a nesting along the axis x-x '.
- 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 like a lyre, are then shaped into jaws, the connector engaging between it according to the knife switch system.
Landscapes
- Resistance Heating (AREA)
Description
- 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.
Claims (4)
- Elément chauffant (2), en particulier pour grille-pain, comprenant un tube (14) en matière électriquement isolante autour duquel est enroulé un fil résistif chauffant (15) ainsi qu'au moins un connecteur électrique (1) fixé aux extrémités (2a) de l'élément chauffant (2) et soudé avec ledit fil résistif chauffant (15)
caractérisé en ce que le fil résistif chauffant (15) comporte au moins une extrémité à spires (15a) fixée par soudage sur le connecteur (1), l'extrémité à spires étant enroulée hélicoïdalement. - Elément chauffant selon la revendication 1 caractérisé en ce que l'extrémité à spires (15a) fixée par soudage comporte des spires (15a) plus serrées que sur le reste du tube (14).
- Elément chauffant selon la revendication 2 caractérisé en ce que le connecteur (1) comporte une partie en forme de languette (9) autour de laquelle est enroulée et soudée l'extrémité à spires resserrées (15a).
- Elément selon la revendication 3 caractérisé en ce que la languette (9) est emboítée sur l'extrémité (2a) de l'élément chauffant (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9007828U DE9007828U1 (de) | 1989-01-27 | 1990-01-24 | Heizelement |
Applications Claiming Priority (3)
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 | ||
EP19900400211 EP0380417B1 (fr) | 1989-01-27 | 1990-01-24 | Connecteur électrique pour élément chauffant |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900400211 Division EP0380417B1 (fr) | 1989-01-27 | 1990-01-24 | Connecteur électrique pour élément chauffant |
EP90400211.0 Division | 1990-01-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0635992A2 EP0635992A2 (fr) | 1995-01-25 |
EP0635992A3 EP0635992A3 (fr) | 1995-09-20 |
EP0635992B1 true EP0635992B1 (fr) | 1998-10-14 |
Family
ID=9378170
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900400211 Expired - Lifetime EP0380417B1 (fr) | 1989-01-27 | 1990-01-24 | Connecteur électrique pour élément chauffant |
EP94116116A Expired - Lifetime EP0635992B1 (fr) | 1989-01-27 | 1990-01-24 | Element chauffant |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900400211 Expired - Lifetime EP0380417B1 (fr) | 1989-01-27 | 1990-01-24 | Connecteur électrique pour élément chauffant |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0380417B1 (fr) |
DE (3) | DE69018843T2 (fr) |
ES (2) | ES2072994T3 (fr) |
FR (1) | FR2642573B1 (fr) |
Families Citing this family (3)
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. |
EP2626647B1 (fr) | 2011-03-30 | 2014-06-11 | Eberspächer catem GmbH & Co. KG | Procédé de fabrication d'un élément plat comprenant des circuits |
Family Cites Families (8)
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 (fr) * | 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 |
-
1989
- 1989-01-27 FR FR8901017A patent/FR2642573B1/fr not_active Expired - Lifetime
-
1990
- 1990-01-24 EP EP19900400211 patent/EP0380417B1/fr not_active Expired - Lifetime
- 1990-01-24 DE DE1990618843 patent/DE69018843T2/de not_active Expired - Lifetime
- 1990-01-24 EP EP94116116A patent/EP0635992B1/fr 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
- 1990-01-24 DE DE1990632705 patent/DE69032705T2/de not_active Expired - Fee Related
- 1990-01-24 ES ES94116116T patent/ES2097714T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69032705T2 (de) | 1999-04-22 |
EP0380417B1 (fr) | 1995-04-26 |
DE69032705D1 (de) | 1998-11-19 |
ES2072994T3 (es) | 1995-08-01 |
DE635992T1 (de) | 1997-06-26 |
ES2097714T3 (es) | 1998-12-16 |
ES2097714T1 (es) | 1997-04-16 |
EP0380417A1 (fr) | 1990-08-01 |
FR2642573B1 (fr) | 1993-09-17 |
DE69018843T2 (de) | 1995-12-07 |
FR2642573A1 (fr) | 1990-08-03 |
DE69018843D1 (de) | 1995-06-01 |
EP0635992A3 (fr) | 1995-09-20 |
EP0635992A2 (fr) | 1995-01-25 |
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