EP0223966B1 - Dispositif de chauffage par rayonnement pour plaque de cuisson - Google Patents

Dispositif de chauffage par rayonnement pour plaque de cuisson Download PDF

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Publication number
EP0223966B1
EP0223966B1 EP86113219A EP86113219A EP0223966B1 EP 0223966 B1 EP0223966 B1 EP 0223966B1 EP 86113219 A EP86113219 A EP 86113219A EP 86113219 A EP86113219 A EP 86113219A EP 0223966 B1 EP0223966 B1 EP 0223966B1
Authority
EP
European Patent Office
Prior art keywords
heating
heating coils
coils
heating device
heating coil
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
Application number
EP86113219A
Other languages
German (de)
English (en)
Other versions
EP0223966A1 (fr
Inventor
Josef Hecht
Günter Dzwigon
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.)
AKO Werke GmbH and Co KG
Original Assignee
AKO Werke GmbH and Co KG
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 AKO Werke GmbH and Co KG filed Critical AKO Werke GmbH and Co KG
Priority to AT86113219T priority Critical patent/ATE44123T1/de
Publication of EP0223966A1 publication Critical patent/EP0223966A1/fr
Application granted granted Critical
Publication of EP0223966B1 publication Critical patent/EP0223966B1/fr
Expired 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater

Definitions

  • the invention relates to a radiant heating device for hot plates, in which three heating coils are laid on an insulating body, which can be switched individually or in groups, and in which the outer circles surrounding the circumference of the heating coils lie one inside the other.
  • Such a radiant heating device is described in DE-A1-33 15 438. If only one heating coil is switched on in such a radiant heating device, then the hotplate, in particular the glass ceramic hotplate, is only insufficiently heated via the other two heating coils. There is an uneven heat distribution on the hotplate.
  • a radiant heating device according to the preamble of claim 1 is known from DE-A1-32 34 349.
  • the object of the invention is to achieve as uniform a heating as possible over the surface in such a radiant heating device, even if only one of the heating coils is switched on, and to provide a simple connection option for the heating coils.
  • Each heating coil has, on the one hand, sections lying on its outer circle, that is to say far outside, and, on the other hand, sections projecting from these inwards towards the center of the surface of the insulating body. If only one of the heating coils is switched on, there is still a very wide ring zone in which the hotplate is heated. The ring zones in which the heating coils run are not adjacent to one another, but rather overlap. This results in a fairly uniform heating of the hotplate for the possible switchable heating output levels.
  • connection points are located far outside on the insulating body. They are not covered by sections of other heating coils so that connections and heating coils would have to cross. The connection points can thus be easily contacted on the surface of the insulating body.
  • a radiant heating device has a circular or oval insulating body 1.
  • the insulating body 1 is provided with a raised ring edge 2.
  • Channels 3 for receiving three heating coils 4, 5 and 6 run inside the ring edge 2.
  • a controller 7 is arranged outside the ring edge 2, the temperature sensor of which is designated by 8.
  • the three heating coils 4, 5 and 6 can be switched electrically in a seven-cycle circuit.
  • the outer heating coil 4 is enclosed by an outer circle A.
  • the central heating coil 5 is enclosed by an outer circle B.
  • the inner heating coil 6 is enclosed by an outer circle C.
  • the outer heating coil 4 has sections 9 which run at the outer circle A. From these sections 9, sections 10 project inwards towards the center of the surface of the insulating body 1 up to an inner circle a.
  • the central heating coil 5 has sections 11 which run at the outer circle B. Between sections 11, sections 12 extend inwards to an inner circle b.
  • the inner heating coil 6 has sections 13 which run at the outer circle C. Between sections 13, sections 14 project inwards up to an inner circle c.
  • the inwardly projecting sections 10, 12 and 14 interlock. Their shape is V-shaped (see FIGS. 1 and 2) or U-shaped (see sections 10 in FIG. 2).
  • the circles A, B, C, a, b, c are concentric.
  • the heating coil 4 has two spaced connection points 15 in the area of its outer circle A.
  • the heating coil 5 has connection points 16 in the region of its outer circle B.
  • the heating coil 6 is provided in the area of its outer circle C with connection points 17.
  • the connection points 16 lie between the connection points 15.
  • the connection points 17 lie between the connection points 16. All connection points 15, 16, 17 are therefore close to the ring edge 2 and are not connected to it by one of the sections mentioned, so that the connections are easy and without Intersections or relocations within the insulating body 1, can be performed on a terminal block 18 to the outside. Since the connection points are close to each other, individual connection points, depending on the circuit provided, can also be easily connected directly to one another.
  • Each heating coil 4, 5 and 6 runs between their connection points 15, 16 and 17, respectively. It therefore extends only in one position on the insulating body 1.
  • the heating coil 4 develops its heating effect in the ring zone Aa.
  • the heating coil 5 acts in the ring zone Bb.
  • the heating coil 6 is effective in the ring zone Cc and also radiates into the interior of the circle c.
  • the heating coil 6 is therefore not in a channel in the area of the inner circle c.
  • the ring zones Aa, Bb, Cc overlap (see FIG. 2). Since the ring zones Aa and Cc also overlap, there is a ring zone Ca in which sections of all three heating coils lie. This ensures that the ring zone Ca and a subsequent area are heated, regardless of which of the heating coils 4, 5 or 6 is switched on. Overheating of the ring zone Ca does not take place, since the relevant sections also lie next to one another in the ring zone Ca.
  • the outer heating coil 4 and the inner heating coil 6 are laid slightly differently than in the exemplary embodiment according to FIG. 1.
  • the sections 10 are V-shaped, whereas in the exemplary embodiment according to FIG. 2 they are U-shaped .
  • the inner heating coil 6 is laid more pointedly in its inner circle c than in the exemplary embodiment according to FIG.
  • the channels 3 are designed so that heating coils can be inserted in different ways. Accordingly, unnecessary duct parts remain free. Such channel parts are designated by 19 in FIG. 1 and by 20 in FIG.
  • the arrangement of the heating coils depends on the desired heating output. Correspondingly different insulating bodies do not have to be provided for the different heating outputs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • General Induction Heating (AREA)
  • Baking, Grill, Roasting (AREA)

Claims (5)

1. Dispositif de chauffage par rayonnement pour plaques de cuisson, dans lequel sont posées sur un corps isolant (1 ), en zones annulaires concentriques (A-a, B-b, C-c), trois spirales chauffantes (4, 5, 6) qui peuvent être mises en circuit isolément ou en groupes, et dans lequel les cercles extérieurs (A, B, C) de chaque zone annulaire (A-a, B-b, C-c) qui entourant la périphérie des spirales chauffantes (4, 5, 6) sont situés les uns à l'intérieur des autres, les prises de courant (16, 17) des spirales chauffantes (5, 6) dont les cercles extérieurs (B, C) sont les plus petits étant disposées les unes à côté des autres entre les deux prises de courant (15) de la spirale chauffante (4) dont le cercle extérieur (A) est le plus grand, caractérisé par le fait que chaque spirale chauffante (4, 5, 6) comporte plusieurs portions (10, 12, 14) qui font saillie vers l'intérieur depuis son cercle extérieur (A, B, C) et vers le milieu, et qui se reccordent à des portions (9, 11, 13) de la spirale chauffante concernée (4, 5, 6) situées sur le cercle extérieur correspondant (A, B, C), par le fait que les portions en saillie vers l'intérieur (10, 12, 14) des spirales chauffantes (4, 5, 6) s'interpénètrent, et par le fait que les trois zones annulaires (A-a, B-b, C-c) occupées par les spirales chauffantes (4, 5, 6) se recoupent, la zone annulaire (A-a) occupée par la spirale chauffante extérieure (4) et la zone annulaire (C-c) occupée par la spirale chauffante intérieure (6) se recoupant également.
2. Dispositif de chauffage par rayonnement selon la revendication 1, caractérisé par le fait que les prises de courant (15, 16, 17) des spirales chauffantes (4, 5, 6) sont disposées les unes à côté des autres dans la région des cercles extérieurs (A, B, C1.
3. Dispositif de chauffage par rayonnement selon l'une des revendications précédentes, caractérisé par le fait que les portions en saillie vers l'intérieur (10, 12, 14) s'étendent en forme de U ou de V.
4. Dispositif de chauffage par rayonnement selon l'une des revendications précédentes, caractérisé par le fait que des canaux (3) correspondant aux diverses formes possibles pour la pose de spirales chauffantes (4,5, 6) sont prévus sur le corps isolant (1
5. Dispositif de chauffage par rayonnement selon la revendication 4, caractérisé par le fait que la spirale chauffante intérieure (6) ne repose pas dans un canal dans la région du cercle intérieur (c) de la zone annulaire intériere (C-c).
EP86113219A 1985-11-27 1986-09-25 Dispositif de chauffage par rayonnement pour plaque de cuisson Expired EP0223966B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113219T ATE44123T1 (de) 1985-11-27 1986-09-25 Strahlungsheizvorrichtung fuer kochplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3541839 1985-11-27
DE19853541839 DE3541839A1 (de) 1985-11-27 1985-11-27 Strahlungsheizvorrichtung fuer kochplatten

Publications (2)

Publication Number Publication Date
EP0223966A1 EP0223966A1 (fr) 1987-06-03
EP0223966B1 true EP0223966B1 (fr) 1989-06-14

Family

ID=6286923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113219A Expired EP0223966B1 (fr) 1985-11-27 1986-09-25 Dispositif de chauffage par rayonnement pour plaque de cuisson

Country Status (3)

Country Link
EP (1) EP0223966B1 (fr)
AT (1) ATE44123T1 (fr)
DE (2) DE3541839A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324086A1 (fr) * 1988-01-13 1989-07-19 Fritz Eichenauer GmbH & Co. KG Dispositif de chauffage, en particulier comme plaque de cuisson
EP0432470A2 (fr) * 1989-12-12 1991-06-19 Bosch-Siemens HausgerÀ¤te GmbH Pièce de connexion (protecteur) pour une plaque chauffante d'une cuisinière électrique
US5153413A (en) * 1990-07-15 1992-10-06 E.G.O. Elektro-Gerate Blanc U. Fischer Electric radiant heating element
GB2257002A (en) * 1991-06-21 1992-12-23 Electrolux Cookers Ceramic electric hob
GB2290859A (en) * 1994-06-28 1996-01-10 British Tech Group Apparatus for uniformly heating a substrate

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914990A1 (de) * 1989-05-06 1990-11-08 Ako Werke Gmbh & Co Strahlungsheizeinrichtung
DE4320214A1 (de) * 1993-06-18 1994-12-22 Belzig Elektrowaerme Gmbh Anordnungen elektrischer Verbindungen und Elemente hierfür
US10132504B1 (en) 2017-05-15 2018-11-20 Backer Ehp Inc. Dual coil electric heating element
US11067288B2 (en) 2017-05-15 2021-07-20 Backer Ehp Inc. Dual coil electric heating element
WO2020096623A1 (fr) * 2018-11-09 2020-05-14 Backer Ehp Inc. Élément chauffant électrique à double bobine
USD955168S1 (en) 2019-07-03 2022-06-21 Backer Ehp Inc. Electric heating element
US11581156B2 (en) 2019-07-03 2023-02-14 Backer Ehp Inc. Dual coil electric heating element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1614434A (en) * 1924-07-31 1927-01-11 Jacob L Moore Electric heating device
DE8400644U1 (de) * 1983-01-21 1984-10-04 I.R.C.A. S.p.A. Industria Resistenze Corazzate ed Affini, San Vendemiano, Treviso Elektrisches heizelement, insbesondere fuer glatte kochflaechen
DE3315438A1 (de) * 1983-04-28 1984-10-31 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Heizelement zur beheizung von koch-, heizplatten oder dgl.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436034A (en) * 1922-11-21 Electpvic heating unit ob hot plate
GB144610A (en) * 1919-06-11 1921-05-23 Landers Frary & Clark Improvements in electrically heated device
US1959807A (en) * 1932-03-03 1934-05-22 Sarah C Andrew Device for browning foods
GB439571A (en) * 1934-06-02 1935-12-02 George Henry Collins Improvements in electric cooking stoves
US2235091A (en) * 1936-09-12 1941-03-18 Samuel S Vineberg Heating unit for electrical cooking devices
US3067315A (en) * 1960-02-08 1962-12-04 Gen Electric Multi-layer film heaters in strip form
US4002883A (en) * 1975-07-23 1977-01-11 General Electric Company Glass-ceramic plate with multiple coil film heaters
DE3234349A1 (de) * 1982-09-16 1984-03-22 Ego Elektro Blanc & Fischer Heizkoerper fuer glaskeramikkochflaechen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1614434A (en) * 1924-07-31 1927-01-11 Jacob L Moore Electric heating device
DE8400644U1 (de) * 1983-01-21 1984-10-04 I.R.C.A. S.p.A. Industria Resistenze Corazzate ed Affini, San Vendemiano, Treviso Elektrisches heizelement, insbesondere fuer glatte kochflaechen
DE3315438A1 (de) * 1983-04-28 1984-10-31 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Heizelement zur beheizung von koch-, heizplatten oder dgl.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324086A1 (fr) * 1988-01-13 1989-07-19 Fritz Eichenauer GmbH & Co. KG Dispositif de chauffage, en particulier comme plaque de cuisson
EP0432470A2 (fr) * 1989-12-12 1991-06-19 Bosch-Siemens HausgerÀ¤te GmbH Pièce de connexion (protecteur) pour une plaque chauffante d'une cuisinière électrique
EP0432470A3 (en) * 1989-12-12 1992-12-23 Bosch-Siemens Hausgeraete Gmbh Connecting piece (protector) for a heating plate of an electric cooking range
US5153413A (en) * 1990-07-15 1992-10-06 E.G.O. Elektro-Gerate Blanc U. Fischer Electric radiant heating element
GB2257002A (en) * 1991-06-21 1992-12-23 Electrolux Cookers Ceramic electric hob
GB2290859A (en) * 1994-06-28 1996-01-10 British Tech Group Apparatus for uniformly heating a substrate
GB2290859B (en) * 1994-06-28 1998-04-22 British Tech Group Apparatus for uniformly heating a substrate
US5859408A (en) * 1994-06-28 1999-01-12 Btg International Limited Apparatus for uniformly heating a substrate

Also Published As

Publication number Publication date
EP0223966A1 (fr) 1987-06-03
ATE44123T1 (de) 1989-06-15
DE3541839A1 (de) 1987-06-04
DE3664034D1 (en) 1989-07-20

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