EP0784416B1 - Elément de chauffage - Google Patents

Elément de chauffage Download PDF

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Publication number
EP0784416B1
EP0784416B1 EP96119580A EP96119580A EP0784416B1 EP 0784416 B1 EP0784416 B1 EP 0784416B1 EP 96119580 A EP96119580 A EP 96119580A EP 96119580 A EP96119580 A EP 96119580A EP 0784416 B1 EP0784416 B1 EP 0784416B1
Authority
EP
European Patent Office
Prior art keywords
heating
outgoing terminal
switch
pole
heating element
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
EP96119580A
Other languages
German (de)
English (en)
Other versions
EP0784416A3 (fr
EP0784416A2 (fr
Inventor
Jörg Dipl.-Ing.(FH) Meyer
Josef Dipl.-Ing.(Fh) Hecht
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung 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 Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP0784416A2 publication Critical patent/EP0784416A2/fr
Publication of EP0784416A3 publication Critical patent/EP0784416A3/fr
Application granted granted Critical
Publication of EP0784416B1 publication Critical patent/EP0784416B1/fr
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
    • H05B3/68—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
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to a heating element, preferably a radiant heater for glass ceramic cooktops, with essentially concentric or parallel heating conductors being provided.
  • a heating element of the aforementioned type is known from GB-A-2 136 659.
  • DE 33 15 438 A1 discloses a heating element which consists of an insulating support and one Receptacle is formed and for heating ceramic hobs is arranged below the glass ceramic plate.
  • the heating element has three heating conductors on, two of which are arranged in series, during the third heating conductor runs parallel to these. This measure aims to improve Ratio between heating conductor length and heating conductor output can be achieved.
  • a particularly advantageous application is given to radiant heaters use a seven-stroke switch.
  • German Patent No. 12 39 034 There is one end of two heating conductors each or heating spirals placed on an outgoing terminal of the switch. The remaining four ends of the heating conductors are combined in pairs and also each put an outgoing clamp.
  • This patent is based on the knowledge that it maintains the known seven-bar is not possible between the switching stages II and I another Switch position to be provided in which the third outgoing terminal with neither of the two Pole terminals is connected.
  • the object of the invention is therefore to provide a heating element of the type mentioned to create, in which through a special arrangement of the heating conductors an improved Temperature distribution and an overall optimized performance gradation achieved becomes.
  • the inventive features contrast with a cost-effective overall solution single-circuit heating with energy controller created.
  • the arrangement of the The heating conductor ensures a good temperature distribution over the entire heating element and a good linear power distribution. Crossings in the cable routing the heating conductor are avoided, so that the connections remain the same. Thanks to optimal combination options for parallel and series connection of the heating conductors only a few connections are required. For the user is approximate linear performance curve achieved an optimal performance gradation. In the lowest level can e.g. a warming level can be made possible by series connection, a very low power of about 100 watts can be achieved for food warming. At the same time it results a maximum possible, even temperature distribution over the entire Cooking surface of the heating element.
  • the heating element 1 is for the radiant heating one not shown here
  • Glass ceramic plate for an electric cooker has a carrier shell 2 in which one Insulating layer 3 is inserted.
  • the insulating layer 3 is essentially concentric provided and partially inwardly directed ring grooves into which a total of four heating tabs 4, 5, 6 and 7 are inserted.
  • the heating conductors 4, 5, 6 and 7 are connected to the output terminals 8, 9, 10, 11 and 12.
  • the four heating conductors 4, 5, 6 and 7 all have different resistance values.
  • Alternatively are of course other arrangements of the heating conductors 4, 5, 6 and 7 in the carrier shell 2 possible. It is essential in the arrangement of the heating conductors according to FIG. 1 the avoidance of line crossings to the outgoing terminals.
  • the circuit arrangement of the heating element 1 is shown in the equivalent circuit diagram clearly shown in Figure 2. It can be seen that the outgoing terminal 8 is connected to the heating conductor 4 via the free supply line 13. The outgoing terminal 9 is connected to the heating conductor 5 via the free supply line 14. The outgoing terminal 10 is connected to the heating conductors 6 and 7, while the outgoing terminal 11 is connected via the free access line 15 to the heating conductor 7. Finally, the outgoing terminal 12 is connected to the heating conductors 4, 5 and 6. This arrangement of the heating conductors shown in FIG optimal power distribution with an almost linear power curve achieved from switching level I to switching level IX.
  • FIG 3 the circuit according to the invention with a ten-stroke switch in shown a block diagram.
  • the individual switching stages are with the Roman ones Numbers I to IX and marked OFF in the final switching stage.
  • the order the heating conductor 4, 5, 6 and 7 with the corresponding leads 13, 14 and 15 and the output terminals 8, 9, 10, 11 and 12 correspond in their basic structure the equivalent circuit diagram of Figure 2.
  • the two-pole switch is dash-dotted shown with the lines 17 and 18 of a direct current or alternating current network is electrically connected.
  • the two poles of the ten-stroke switch 16 are designated 19 and 20.
  • the fourth outgoing terminal 9 is applied to the first pole 20 the fifth pole 8 to the second pole 19. It is about a series connection of the heating conductors 4 and 5. It should also be noted here that in in this single case, one of the output terminals 8, 9 or 10 is accessed from the pole 20 becomes.
  • switching stage III the first outgoing terminal 12 is connected to the first pole 20 and fourth output terminal 9 on the second pole 19. This is the only case in which only one heating conductor 5 is connected.
  • Switching stage IV shows a connection from the first pole 20 to the second outgoing terminal 11 and a further connection from the second pole 19 to both the third outgoing terminal 10 and the fifth Outgoing terminal 8. This is a parallel connection of the two in Row of heating conductors 4 and 6 to the fourth heating conductor 7.
  • Switching stage V shows a connection from the first pole 20 to the first and to the second output terminal 11 and 12.
  • the second pole 19 is located on the third output terminal 10 on. This causes a parallel connection of the heating conductor 6 to Heating conductor 7.
  • Another parallel connection is disclosed in switching stage VI, in which the heating conductor 4 is connected in parallel to the heating conductor 6.
  • the first pole 20 the ten-stroke switch 16 is applied to the first outgoing terminal 12 while the second pole 19 to the third outgoing terminal 10 and to the fifth outgoing terminal 8 is connected.
  • switching stage VII there is a connection from pole 20 to the first outgoing terminal 12 and to the second outgoing terminal 11. Another connection goes from the pole 19 to the third outgoing terminal 10 and to the fourth outgoing terminal 9. This results in a parallel connection of the heating conductor 5 to the heating conductor 6 and Heating conductor 7 reached.
  • switching stage VIII of the ten-stroke switch 16 the first pole 20 is connected to the first Outgoing terminal 12 and the second pole 19 to outgoing terminals 8, 9 and 10 connected, resulting in a parallel connection of the heating conductor 4 to the heating conductor 5 and to the heating conductor 6 results.
  • switching stage IX shows with the maximum heating power, a parallel switch of all four heating conductors 4, 5, 6 and 7 to each other.
  • the pole 20 of the ten-stroke switch 16 is both with the first also connected to the second outgoing terminal 12 and 11.
  • the second pole 19 of the Ten-stroke switch 16 is applied to the output terminals 8, 9 and 10.
  • the described radiator according to the invention with ten-stroke switch 16 is basically based on more at the same time heated heating conductors than previously in the prior art is known.
  • This ten-stroke circuit creates a homogeneous, linear power distribution reached.
  • the hotplate according to switching level I has only a minimum output of around 100 watts, the heating output covering the entire surface distributed on the hotplate.
  • Another advantage is that in the respective outdoor area of the heating element 1 higher heating output than in the inner area. In order to the fact is taken into account that a relatively high heat emission in each case occurs in the area of the cooking edges to the cooking pot edges.
  • heating conductors 4, 5, 6 and 7 of different resistance values can be used.
  • the changes in resistance vary due to different overall performance. This also results in pure arithmetically a different power distribution from switching stage I to Switching stage IX.
  • With a diameter of the carrier shell 2 or the hotplate The power curve runs from 145 W (switching level I) up to 145 millimeters 1200 W (switching level IX). With a diameter of 180 millimeters they are Power values 129 W and 1700 W, with a diameter of 210 millimeters corresponding to 158 W and 2100 W.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (8)

  1. Elément chauffant, de préférence corps chauffant à radiation pour zones de cuisson en vitrocéramique, dans lequel sont prévus des conducteurs chauffants (4, 5, 6, 7) qui s'étendent sensiblement concentriquement ou parallèlement entre eux, caractérisé en ce que sont prévus quatre conducteurs chauffants qui peuvent être commandés par un interrupteur (16) à dix crans, par l'intermédiaire de cinq bornes de sortie (8, 9, 10, 11, 12).
  2. Elément chauffant selon la revendication 1, caractérisé en ce que la première borne de sortie (12) est raccordée au premier conducteur chauffant (4), au deuxième (5) et au troisième (6), en ce que la deuxième borne de sortie (11) est raccordée à la ligne d'arrivée (15) libre du quatrième conducteur chauffant (7), la troisième borne de sortie (10) est raccordée au troisième conducteur chauffant (6) et au quatrième (7), la quatrième borne de sortie (9) est raccordée à la ligne d'arrivée (14) libre du deuxième conducteur chauffant (5) et la cinquième borne de sortie (8) est raccordée à la ligne d'arrivée (13) libre du premier conducteur chauffant (4).
  3. Elément chauffant selon la revendication 1 ou 2, caractérisé en ce que dans le cas où l'interrupteur (16) à dix crans est commuté dans les crans I et II et IV à IX, deux conducteurs chauffants (4, 5, 6, 7) ou plus sont mis en circuit.
  4. Elément chauffant selon l'une des revendications 1 à 3, caractérisé en ce que le conducteur chauffant (4) extérieur à l'anneau, présente la plus grande puissance nominale par rapport aux autres conducteurs chauffants (5, 6, 7) du même élément chauffant (1).
  5. Elément chauffant selon la revendication 1 ou 2, caractérisé en ce que pour au moins la moitié des crans de l'interrupteur (16) à dix crans, trois conducteurs chauffants (4, 5, 6, 7) ou plus sont mis en circuit.
  6. Elément chauffant selon l'une des revendications précédentes, caractérisé en ce que dans le cran I, l'interrupteur (16) à dix crans occupe la deuxième borne de sortie (11) et la quatrième (9), dans le cran II, il occupe la quatrième borne de sortie (9) et la cinquième (8), dans le cran III, il occupe la première borne de sortie (12) et la quatrième (9), dans le cran IV, il occupe la deuxième borne de sortie (11) et avec le deuxième pôle (19) la troisième borne de sortie (10) et la cinquième borne de sortie (8), dans le cran V, il occupe la première borne de sortie (12) et la deuxième (11) avec le premier pôle (20) et la troisième borne de sortie (10), dans le cran VI, il occupe la première borne de sortie (12) et avec le deuxième pôle (19), la troisième borne de sortie (10) et la cinquième (8), dans le cran VII avec le premier pôle (20), il occupe la première borne de sortie (12) et la deuxième (11) et avec le deuxième pôle (19), la troisième borne de sortie (10) et la quatrième (9), dans le cran VIII, il occupe la première borne de sortie (12) et avec le deuxième pôle (19), la troisième (10), la quatrième (9) et la cinquième bornes de sortie (8) et dans le cran IX avec le premier pôle (20), il occupe la première borne de sortie (12) et la deuxième (11) et avec le deuxième pôle (19), la troisième borne de sortie (10), la quatrième (9) et la cinquième (8).
  7. Elément chauffant selon l'une des revendications précédentes, caractérisé en ce que la puissance de chauffage de l'élément chauffant (1) augmente pour l'essentiel approximativement linéairement du cran I jusqu'au cran IX.
  8. Elément chauffant selon l'une des revendications précédentes, caractérisé en ce que le cran I correspond au cran de maintien au chaud par des conducteurs chauffants (5, 6, 7) montés exclusivement en série.
EP96119580A 1996-01-09 1996-12-06 Elément de chauffage Expired - Lifetime EP0784416B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29600274U DE29600274U1 (de) 1996-01-09 1996-01-09 Heizelement
DE29600274U 1996-01-09

Publications (3)

Publication Number Publication Date
EP0784416A2 EP0784416A2 (fr) 1997-07-16
EP0784416A3 EP0784416A3 (fr) 1997-12-29
EP0784416B1 true EP0784416B1 (fr) 2000-09-27

Family

ID=8017808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119580A Expired - Lifetime EP0784416B1 (fr) 1996-01-09 1996-12-06 Elément de chauffage

Country Status (4)

Country Link
US (1) US5864121A (fr)
EP (1) EP0784416B1 (fr)
DE (2) DE29600274U1 (fr)
ES (1) ES2151984T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7038176B2 (en) * 2004-02-25 2006-05-02 Maytag Corporation Infinite temperature control for heating element of a cooking appliance
DE102006023719B4 (de) * 2006-05-19 2021-06-10 BSH Hausgeräte GmbH Heizkörper für eine Kochmulde
IT202100031361A1 (it) * 2021-12-14 2023-06-14 Marine Cookers Srls “migliorato piano cottura”

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172996A (en) * 1962-11-23 1965-03-09 Gen Electric Electric heating systems
DE1239034B (de) 1964-03-10 1967-04-20 Ernst Dreefs Ges Mit Beschraen Siebentaktregelschaltung fuer Kochplatten
IT8320567V0 (it) * 1983-01-21 1983-01-21 I R C A Ind Resistenze Corazza Elemento riscaldante elettrico, in particolare per piani lisci di cottura.
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.
JPS62271386A (ja) * 1986-01-04 1987-11-25 カ−ル・ツワイス・ステイフツング ガラス−セラミツク系調理用レンジ
DE8711209U1 (de) * 1987-08-18 1987-10-01 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrischer Heizkörper
DE3908242A1 (de) * 1989-03-14 1990-09-20 Buderus Kuechentechnik Heizeinrichtung

Also Published As

Publication number Publication date
EP0784416A3 (fr) 1997-12-29
US5864121A (en) 1999-01-26
EP0784416A2 (fr) 1997-07-16
ES2151984T3 (es) 2001-01-16
DE59605941D1 (de) 2000-11-02
DE29600274U1 (de) 1997-05-07

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