EP0203449B1 - Unité de chauffage pour cuisinière électrique - Google Patents

Unité de chauffage pour cuisinière électrique Download PDF

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Publication number
EP0203449B1
EP0203449B1 EP86106514A EP86106514A EP0203449B1 EP 0203449 B1 EP0203449 B1 EP 0203449B1 EP 86106514 A EP86106514 A EP 86106514A EP 86106514 A EP86106514 A EP 86106514A EP 0203449 B1 EP0203449 B1 EP 0203449B1
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EP
European Patent Office
Prior art keywords
heating
heating unit
unit according
temperature
outer body
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
EP86106514A
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German (de)
English (en)
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EP0203449A1 (fr
Inventor
Felix Schreder
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
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
Priority claimed from DE19853519035 external-priority patent/DE3519035A1/de
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT86106514T priority Critical patent/ATE69534T1/de
Publication of EP0203449A1 publication Critical patent/EP0203449A1/fr
Application granted granted Critical
Publication of EP0203449B1 publication Critical patent/EP0203449B1/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
    • H05B3/76—Plates with spirally-wound heating tubes
    • 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

Definitions

  • the invention relates to an electric cooker heating unit according to the preamble of claim 1.
  • a heating unit which has two heating surfaces which can be switched independently of one another and are also spatially separated from one another.
  • Each of the heating surfaces is assigned its own temperature sensor. Because of the concentric arrangement of the However, heating surfaces must also protrude above the other heating surface, but is designed so that it is only active at those points where it crosses the heating surface assigned to it.
  • Each temperature sensor has a switch contact that is set to the switch-off temperature assigned to the respective heating surface.
  • hot plates which have several, for example three, heating resistors as the main heating, which can be connected in parallel and via a clocking power control device or a multi-clock switch, for example, a seven-stroke switch can be operated.
  • Such electric hotplates which can also have a separate additional heating resistor that can be switched off via a separate temperature switch, for a brief high heating power, often present difficulties when switching off part of the main heating due to the remaining high power, which is still under unfavorable conditions can lead to overheating.
  • the invention has for its object to provide an electric cooker heating unit of the type described, which with a simple and compact structure under operating conditions that lead to the vicinity of the overheating area, adapting to the respective operating condition, a differentiated switching off of a smaller or larger part of the heating power the main heating enables such that, in the case of a remaining, not switched off residual power, on the one hand this does not lead to overheating and on the other hand a relatively high operating temperature of the heating unit can be maintained for its further use.
  • the two temperature sensors arranged in different areas of the heating surface are provided approximately diametrically opposite one another, so that they separately scan the most distant areas of the heating surface or of the outer body and can also immediately detect local overheating.
  • the two temperature limiters have a common limiter housing, which is preferably provided with an opening for the engagement of a central fastening projection of the outer body projecting on the underside.
  • both temperature limiters have separate limiter housings, which are preferably located on both sides of the central fastening projection of the outer body designed as a hotplate body, so that they are provided in contact-free spacing from one another and do not influence one another.
  • a particularly intensive heat coupling of the respective temperature sensor and thus a very quick response of the associated temperature limiter can be achieved above all if the temperature sensor of at least one temperature limiter extends outside an inner ring of the outer body, which protrudes on the underside and delimits the central zone, and thus immediately is influenced by the area in which the heating resistors are located. This can be further improved in that the temperature sensor extends approximately radially over the area which is provided with heating resistors.
  • the area of the heating unit detected by the respective temperature sensor can be selected to be relatively extensive if two rod-shaped temperature sensors are oriented in different directions, preferably diametrically away from one another and at equal distances from the heating surface with respect to the central axis of the outer body.
  • At least one expansion rod sensor and / or at least one bimetal sensor as the temperature sensor. It is conceivable here to have two temperature sensors that are the same on the principle of operation and / or design or to provide two temperature sensors different according to the principle of action, that is to say, for example, an expansion rod sensor and a bimetal sensor, as a result of which a further differentiation of the Switching behavior of the two temperature limiters can be achieved.
  • both temperature limiters are located on the inside or Underside of the outer or hotplate body arranged cover with which they are preferably fixed together against the outer body or attached to the hotplate body.
  • the two temperature limiters are switched on in separate feed lines, in particular in two of a total of four feed lines between the power control device and the heating resistors.
  • a particularly advantageous embodiment results if a temperature limiter is switched on in the common supply line of two, in particular different, heating resistors or if, in addition to this or instead, the two temperature limiters are each switched on in the supply line of one of the two heating resistors of the highest power, whereby these two heating resistors in particular have the same power.
  • the two heating resistors of the highest output can have 850 watts and the third heating resistor can have an output of 300 watts, in such a way that they can be operated in six different output levels via a power control unit designed as a seven-cycle switch.
  • an electric hotplate 1 has a hotplate body 2 made of cast material as the outer body, the flat, essentially circular upper side of which forms the heating surface in the form of a cooking surface 3, and two concentric ones on its underside, in its central axis 4 lying rings, namely an outer ring 5 slightly offset inward relative to its outer circumferential surface and an inner ring 6, the inner ring 6 projecting far less downward than the outer ring 5.
  • the hotplate body 2 is provided with three spiral grooves separated from one another by narrow spiral ribs, into each of which a helical heating resistor 7 to 8 is inserted and embedded in a heat-resistant insulating compound with respect to the hotplate body 2 without contact.
  • the heating resistors 7 to 8 form the main heating of the hotplate 1, this main heating being provided for the normal operation of the hotplate which can be switched in six power levels.
  • the inner ring 6 delimits on the periphery a central zone 10 of the hotplate body 2 free of radiators, in the area of which the hotplate body is recessed on the upper side and on the underside has a cast-eye-like projection 11 projecting downward in the central axis 4, which protrudes with the inner ring 6 bounded on the underside of the hotplate body 2 a recessed annular region.
  • the projection 11 with the stud bolt 12 serves to fasten a cover 13 which is provided on the underside of the hotplate body 2 and can be formed, for example, in a cup-shaped manner from sheet metal and closes the underside of the hotplate body 2 at a distance from the heating resistors 7 to 9 and to the inner ring 6, whereby it rests with its bottom wall against the lower end face of the projection 11 and is tensioned against it with a nut 14 arranged on the stud 12 as the only fastening.
  • the cover 13 extends to the inner surface of the outer ring 5 and can have a shell circumferential wall in this area, which extends to the level of the fin webs between the heating resistors 7 to 9.
  • an overflow rim 16 (not shown in FIG. 4) made of sheet metal is fastened, which forms the connection of the outer periphery of the hotplate to the hob or the like.
  • two electrically separately connected temperature limiters 17, 18 are arranged in a common limiter housing 19 made of ceramic or the like on the underside of the hotplate body 2.
  • the limiter housing 19 is essentially symmetrical to the central axis 4 and has an opening 21 in it for the passage of the projection 11.
  • the limiter housing 19 With the top 4 is adjacent to the projection 11 on the underside of the hotplate body 2 within the inner ring 6, ie in the central zone 10, the limiter housing 19 being on all sides at a distance from the inner surface of the inner ring 6; to rest on the underside of the hotplate body 2, the limiter housing 19 can have system knobs 22 or similar projections on the top.
  • the bottom wall of the cover 13 rests in an elastically prestressed manner, for which purpose the cover 13 can be provided, for example, with spring knobs 23 or the like projecting upwards.
  • the two temperature limiters 17, 18 are designed, for example, as expansion rod limiters according to FIG. 3, each of which has a temperature sensor 24, 25 protruding over the limiter housing 19.
  • the temperature sensors are not shown in Fig. 1;
  • the temperature limiters according to FIG. 1 can also have temperature sensors, which are located within the limiter housing 19 and are designed, for example, as bimetal sensors.
  • 3 has an inner expansion rod 26 in an outer tube 27, which is anchored at one end in the limiter housing 19 and carries an adjusting screw in the other, not shown free end, on which the expansion rod 26 with its associated end face is axially supported.
  • the other end of the expansion rod 26 located in the limiter housing 19 acts on a snap switch 28 housed in the limiter housing 19, the contacts 29 of which are closed in one position and open in the other position corresponding to a higher sensor temperature.
  • Both snap switches 28 are essentially mirror-symmetrical arranged in the limiter housing 19, but can be electrically connected independently of one another.
  • the opening 19 is penetrated by the opening 21 between the snap switches 28.
  • both temperature sensors 24, 25 are axially aligned with one another, whereby they project freely opposite from the limiter housing 19 and their central axes can lie, for example, radially to the central axis 4; Furthermore, both temperature sensors 24, 25 are at the same height, preferably in such a way that, when the temperature limiter is installed, they are parallel to the cooking surface 3, at least approximately up to the radially outermost region of the heating resistors 7 to 9, that is to say close to the inner surface of the outer ring 5 or The peripheral wall of the cover 13 is sufficient and lies against the underside of the inner ring 6 with little contact force.
  • Terminals or plugs 30, 31, which are provided for the electrically conductive connection of the temperature limiters 17, 18 to the heating resistors on the limiter housing 19, can be arranged on mutually opposite sides of the limiter housing 19, with the connector 30 or the like preferably having at least one temperature limiter the side of the limiter housing 19 facing the connection block 15 are arranged in order to ensure short line connections.
  • the limiter housing 19a in which two temperature limiters are accommodated, is circular in plan view, as a result of which it can be accommodated particularly well in the central zone. All connectors 30a, 31a are provided in parallel next to each other on one side of the limiter housing 19a, namely on the side facing the terminal block. So that the temperature sensors 24a, 25a are made as long as possible or can protrude as far out as possible, the cover 13a is provided in the area of the ends of these temperature sensors 24a, 25a on its peripheral wall with bulges 32 which extend almost to the inner surface of the outer ring 5a .
  • the two temperature limiters 17b, 18b can also have separate limiter housings 19b, 20, these expediently lying opposite one another on both sides of the central axis of the hotplate body, such that the projection receiving the stud bolt 12b on the underside of the hotplate body between them lies.
  • both temperature limiters 17b, 18b are of identical design and are arranged in mirror symmetry.
  • two differently designed temperature limiters 17c, 18c are arranged in the central zone, at least with their limiter housings 19c, 20c.
  • the limiter housings 19c, 20c lie on both sides of an axial plane of the hotplate body, which at the same time 1, the connecting plugs 30c, 31c being provided on the mutually facing sides of the limiter housings 19c, 20c.
  • One temperature limiter 17c is designed, for example, as a bimetal limiter, the temperature sensor formed by a bimetal lies within the limiter housing 19c and is designed, for example, according to DE-PS 11 23 059, to which reference is made for further details and features.
  • the other temperature limiter 18c has, as a temperature sensor 25d, an expansion rod sensor which protrudes at right angles to the central plane mentioned between the two temperature limiters and can be designed in the manner described.
  • the temperature limiters 17d, 18d according to FIG. 8 are two identical temperature limiters, each of which have temperature sensors integrated in the associated limiter housing 19d, 20d and operate, for example, in the manner of spring-disk switches.
  • the connector plugs 30d, 31d are provided on the sides of the limiter housings 19d, 20d facing away from one another.
  • two heating resistors can have a power of approximately 850 watts, while the third heating resistor 8e has a significantly lower power, namely for example 300 watts.
  • the two supply lines 33, 34 and 35, 36 of the two larger heating resistors 7e, 9e are connected independently of one another to the four connection terminals 39 to 42 of the connection block 15e.
  • the temperature limiter 18e is switched on, while the temperature switch 17e is switched on in a feed line 35 of the other larger heating resistor 9e.
  • a supply line of the smaller heating resistor 8e is connected to the connecting terminal 42 to which the switch-free supply line 34 of a larger heating resistor 7e is also connected.
  • the other supply line 38 of the small heating resistor 7e is connected to the supply line 35 of the other large heating resistor 9e into which the temperature limiter 17e is switched on, the supply line 38 being connected between the temperature limiter 17e and this larger heating resistor 9e, in such a way that the heating resistor 8e can also be switched off by the temperature limiter 17e.
  • the two temperature limiters 17f, 18f are switched on in the feed lines 36f, 34f coming from the connecting terminals 41f, 42f such that when the temperature limiter 17f is opened only the heating resistor 9f and when the temperature limiter 18f is opened both the heating resistor 7f as well as the heating resistor 8f can be switched off.
  • the temperature limiter 17g is switched on in the supply line 36g coming from the connecting terminal 41g and the temperature limiter 18g is switched on in the supply line 33g coming from the connecting terminal 39g, in such a way that when the temperature limiter 17g is opened, a large heating resistor 9g and when the temperature limiter 18g is opened, the other large heating resistor 7g is switched off; in Both leads to the small heating resistor 8g, no temperature switch is switched on, so that when voltage is applied to the associated connection terminals 40g, 42g, the small heating resistor 8g remains in operation, even if both temperature limiters 17g, 18g are open.
  • the design according to FIGS. 12 and 13 creates a hotplate heater which can be accommodated easily and in a space-saving manner even under unfavorable space conditions and nevertheless ensures precise monitoring of the temperature conditions in the area of a tubular heater, in particular in the area of the outer boundary of the heating field.
  • the hotplate heating is thus suitable for cover plates 2h made of ceramic, such as glazed ceramic, and for those cover plates which are fastened in hotplate openings in a hob by gluing.
  • the two limiter housings 19h, 20h are arranged on both sides of an axial plane of the central axis 4h with their flat undersides on the raised, also flat section of the bottom wall of the cup-shaped cover hood 13h and extend with their upper sides approximately to the level of the underside of the curved tubular heating elements 7h, 8h.
  • Each temperature sensor 24h or 25h extends over all spiral windings of the two tubular heaters 7h, 8h from the central zone to about the outer periphery 5.
  • each connecting lug 30h or 31h there is an electrical line with a bent from a relatively stiff piece of wire with its Upper, approximately horizontal leg attached, the approximately vertical crossbar penetrates the bottom wall or an elevated central portion in the area of an insulating sleeve made of ceramic or the like inserted in the cover 13h and whose leg located under the cover 13h to the associated inner connection end of the two tubular heating elements 7h, 8h is connected or carries an associated flat plug.
  • the cover 13h also forms the support base for the tubular heating elements 7h, 8h, which are fastened to the support base exclusively in the area of the implementation of their angled ends through the bottom wall.
  • the tabs are located directly below the bottom wall.
  • the limiter housings 19h, 20h can be surrounded at a distance by a cylindrical sleeve-shaped shield 43 standing in the central axis 4h, which is completely inside the central zone in plan view and with its upper, flat end below the cover plate 2h upwards over the underside of the tubular heating element 7h , 8h extends, such that the upper end is higher than the top of the controller housing 19h, 20h and expediently in the plane of the top of the outward edge flange of the cover 13h.
  • the respective temperature sensor 24h, 25h passes through the jacket of the shield 43 between its ends in the region of an opening adapted to its outer diameter, which further improves the hold of the temperature limiter.
  • the shield 43 stands radially outside the raised section on the bottom wall of the cover 13h and expediently consists of insulating material or at least contains insulating material, which can be a ceramic material.
  • FIG. 14 shows a heating unit designed as a radiant heater, which has a carrier shell 13i for receiving or holding the heating resistors 7i, 8i.
  • This carrier shell 13i is provided with a relatively thick-walled inner shell made of insulating material, for example mineral fiber and / or pyrogenic silica and / or vermiculite, and a thin-walled outer shell made of sheet metal or the like the inner shell is held.
  • the heating resistors 7i, 8i are provided on the bottom surface of the inner shell or partially embedded therein, which can also be formed by lamp bulbs, namely so-called light emitters, such as halogen lamps.
  • the end face of the outer edge of the inner shell lies tightly or under pressure on the inside of the glass ceramic or the like, that is to say translucent heating plate 2i.
  • the two temperature limiters 17i, 18i are arranged with a common limiter housing 19i, such that the two temperature sensors 24i, 25i protrude freely in opposite directions and without contact in the space between the heating resistors 7i, 8i on the one hand and the inside of the heating plate 2i on the other hand.
  • the respective temperature sensor 24i can penetrate the outer edge of the inner shell and / or the outer shell of the carrier shell 13i and can therefore be supported at its outer end or be accessible for adjustment at any time.
  • the temperature sensor 25i can also protrude freely in the manner of a cantilever, in such a way that its outer end lies at a distance from the inner surface of the outer edge of the inner shell.
  • the limiter housings which are usually made of ceramic, such as steatite, that is to say of an insulating material, can also be used for center shielding of the heating plate against radiation overheating.

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  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Resistance Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Control Of Resistance Heating (AREA)

Claims (13)

  1. Unité de chauffage pour cuisinière électrique comprenant un corps extérieur (2) et un dispositif de chauffage comportant plusieurs résistances chauffantes (7, 8, 9) commandées par l'intermédiaire d'un appareil de commande de la puissance, dont au moins une peut être coupée par l'intermédiaire de deux dispositifs (17, 18) limiteurs de température disposés au-dessus du dispositif de chauffage, les dispositifs limiteurs de température comprenant au moins un boîtier (19, 20c, 20d, 20h) de limiteur ainsi que deux sondes séparées (24, 25) de température, caractérisée en ce que le boîtier correspondant (19, 20c, 20d, 20h) des deux dispositifs (17, 18) limiteurs de température est disposé dans une zone médiane (10), que les résistances chauffantes (7, 8, 9) sont réalisés de manière à chauffer la même surface (3) de chauffage, en ce que les deux dispositifs (17, 18) limiteurs de température s'étendent depuis la zone médiane (10) sur deux secteurs différents de ladite surface (3) de chauffage, et en ce que les deux dispositifs (17, 18) limiteurs de température possèdent des réglages différents l'un de l'autre.
  2. Unité de chauffage selon la revendication 1, caractérisée en ce que la sonde (24, 25) de température d'au moins un des dispositifs (17, 18) limiteurs de température s'étend vers l'extérieur depuis le boîtier (19) du limiteur jusqu'à l'extérieur d'une bague intérieure (6) du corps extérieur (2), située à l'intérieur, saillant sur la face inférieure et délimitant la zone médiane, la sonde (24, 25) de température d'au moins un des dispositifs (17, 18) limiteurs de température étant agencée derrière les résistances chauffantes, sur la face interne du secteur du corps extérieur (2) qui correspond aux résistances chauffantes (7, 8, 9), la sonde s'étendant à peu près radialement à travers ce secteur.
  3. Unité de chauffage selon la revendication 1 ou 2, caractérisée en ce que les deux dispositifs (17, 18) limiteurs de température possèdent un boîtier commun (19) de limiteur disposé dans la zone médiane (10), qui est doté de préférence d'un support (21) destiné à recevoir une pièce proéminente centrale (11, 12) de fixation saillant de la face inférieure du corps extérieur (2) réalisé sous forme de corps d'une plaque de cuisson.
  4. Unité de chauffage selon la revendication 1 ou 2, caractérisée en ce que les deux dispositifs (17b, 18b) limiteurs de température possèdent des boîtiers séparés (19b, 20b) de limiteur, qui sont disposés de préférence dans la zone médiane de part et d'autre d'une pièce proéminente centrale (12b) de fixation du corps extérieur (2) réalisé sous forme d'un corps de plaque de cuisson, et sont jusxtaposés à la pièce proéminente centrale.
  5. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce que deux sondes (24, 25) de température, exécutées sous forme de tiges, sont disposées dans différentes directions par rapport à l'axe central (4) du corps extérieur (2), en s'écartant de préférence diamétralement l'une de l'autre, et conservent partout la même distance par rapport à la surface (3) de chauffage.
  6. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce qu'au moins l'une des sondes (24, 25; 25b) de température est une sonde à barre de dilatation.
  7. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce qu'au moins l'une des sondes de température est une sonde bimétallique.
  8. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce que les deux dispositifs (17, 18) limiteurs de température se situent à l'intérieur d'un cache (13) disposé à l'intérieur du corps extérieur (2), ce cache fixant les deux dispositifs (17, 18) limiteurs de température par rapport au corps extérieur (2).
  9. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce que les résistances chauffantes sont constituées par au moins un corps de chauffage tubulaire incurvé situé dans un champ de chauffage de manière à s'appuyer contre la face intérieure d'une plaque de couverture, en ce que les pôles de raccordement du corps de chauffage tubulaire (7h, 8h) ainsi que le boîtier de limiteur (19h, 20h) se situent, en vue de dessus (figure 12), à l'intérieur de la zone périphérique du champ de chauffage, essentiellement à proximité de la partie intérieure du corps de chauffage tubulaire incurvé (7h, 8h), et en ce qu'au moins une sonde (24h, 25h) de température s'étend au moins approximativement jusqu'à cette périphérie, deux corps de chauffage tubulaires juxtaposés (7h, 8h) étant, dans ce cas, incurvés de préférence en forme de spirale plane, la spire extrême intérieure délimitant la zone médiane et la spire extrême extérieure délimitant la périphérie du champ de chauffage, et l'un au moins des corps de chauffage tubulaires (7h, 8h), vu en coupe transversale, étant aplati au moins à sa face supérieure de façon à peu près parallèle par rapport à la surface de chauffage.
  10. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce que la face supérieure d'au moins un boîtier (19h, 20h) de limiteur se situe à peu près au niveau du plan correspondant à la face intérieure d'au moins une résistance chauffante incurvée (7h, 8h), à l'intérieur d'un élément écran traversé par la sonde (24h, 25h) de température, l'élément écran ayant notamment la forme d'une boîte ou similaire, s'étendant jusqu'au-dessus de la face intérieure de la résistance chauffante (7h, 8h) et réalisée, le cas échéant, en matière isolante ou contenant de la matière isolante, et disposée sur le fond d'un cache (13h).
  11. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce qu'au moins un boîtier (19h, 20h) de limiteur est disposé directement sur le fond, en particulier sur une partie surélevée du fond d'un cache (13h) et est maintenu exclusivement au moyen de conducteurs électriques correspondants raccordés au boîtier (19h, 20h) de limiteur, qui traversent le fond dans des douilles isolantes ou similaires et se situent sur la face du boîtier (19h, 20h) de limiteur qui est opposée à la sonde (24h, 25h) de température.
  12. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce qu'au moins une résistance chauffante (7i, 8i) est constituée notamment par un élément chauffant à rayonnement agencé dans une coquille (13i) de support réalisée au moins partiellement en une matière isolante, et qu'au moins une sonde (24i, 25i) de température est de préférence agencée entre la résistance chauffante (7i, 8i) et un plan (2i) de chauffage en vitrocéramique ou similaire constituant la surface (3i) de chauffage, notamment sans que la sonde entre en contact avec ce plan de chauffage.
  13. Unité de chauffage selon l'une des revendications précédentes, caractérisée en ce que les deux dispositifs (17e, 18e) limiteurs de température sont branchés sur des conducteurs d'alimentation séparés (35, 39), notamment sur deux des quatre conducteurs d'alimentation, entre l'appareil de commande de la puissance et les résistances chauffantes (7e, 8e, 9e) et/ou en ce qu'un dispositif (17e) limiteur de température est branché sur un conducteur d'alimentation commun (35) de deux résistances chauffantes (8e, 9e) présentant notamment des puissances différentes, et/ou en ce que les deux dispositifs (17e, 18e) limiteurs de température sont branchés respectivement sur le conducteur d'alimentation d'une des deux résistances chauffantes (7e, 9e) ayant une puissance élevée, ces deux résistances chauffantes (7e, 9e) présentant notamment à peu près la même puissance.
EP86106514A 1985-05-25 1986-05-14 Unité de chauffage pour cuisinière électrique Expired - Lifetime EP0203449B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106514T ATE69534T1 (de) 1985-05-25 1986-05-14 Elektrische kochherd-heizeinheit.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3519035 1985-05-25
DE19853519035 DE3519035A1 (de) 1985-05-25 1985-05-25 Elektro-kochplatte
DE8515560U DE8515560U1 (de) 1985-05-25 1985-05-25 Kochstellen-Beheizung
DE8515560U 1985-05-25

Publications (2)

Publication Number Publication Date
EP0203449A1 EP0203449A1 (fr) 1986-12-03
EP0203449B1 true EP0203449B1 (fr) 1991-11-13

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EP86106514A Expired - Lifetime EP0203449B1 (fr) 1985-05-25 1986-05-14 Unité de chauffage pour cuisinière électrique

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US (1) US4697068A (fr)
EP (1) EP0203449B1 (fr)
AT (1) ATE69534T1 (fr)
AU (1) AU581594B2 (fr)
DE (2) DE8515560U1 (fr)
ES (1) ES8704303A1 (fr)
YU (1) YU85786A (fr)

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DE8706277U1 (fr) * 1987-05-01 1987-06-25 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
AT386690B (de) * 1987-06-05 1988-09-26 Electrovac Vorrichtung zur temperaturregelung bzw. begrenzung
DE4130337C2 (de) * 1991-09-12 2002-05-02 Ego Elektro Blanc & Fischer Verfahren zum Betrieb einer elektrischen Heizeinheit und elektrische Heizeinheit
FR2685992B1 (fr) * 1992-01-08 1994-04-08 Seb Sa Plaque de cuisson electrique a capteur de temperature.
WO1995034187A1 (fr) * 1994-06-09 1995-12-14 Strix Limited Recipients pour chauffer un liquide
KR100431658B1 (ko) * 2001-10-05 2004-05-17 삼성전자주식회사 기판 가열 장치 및 이를 갖는 장치
EP1565689B1 (fr) * 2002-11-02 2010-06-30 BSH Bosch und Siemens Hausgeräte GmbH Procede pour faire fonctionner une plaque de cuisson et plaque de cuisson
DE10356790A1 (de) * 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Heizvorrichtung für Fluide, Durchlauferhitzer und Verfahren zu deren Herstellung
US7326885B2 (en) * 2006-05-02 2008-02-05 Barnstead/Thermolyne Corporation Hot plate with stainless steel top
US8723085B2 (en) * 2010-11-24 2014-05-13 Pioneering Technology Corp. Temperature controlled/limiting heating element for an electric cooking appliance
CN105841393A (zh) * 2014-11-03 2016-08-10 威叶私人有限公司 具有加热和冷却功能的电炉
US10345802B2 (en) * 2016-02-17 2019-07-09 Lam Research Corporation Common terminal heater for ceramic pedestals used in semiconductor fabrication

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Also Published As

Publication number Publication date
AU5783886A (en) 1986-11-27
EP0203449A1 (fr) 1986-12-03
YU85786A (en) 1988-02-29
ES8704303A1 (es) 1987-03-16
US4697068A (en) 1987-09-29
ATE69534T1 (de) 1991-11-15
DE8515560U1 (de) 1985-08-29
DE3682434D1 (de) 1991-12-19
ES555267A0 (es) 1987-03-16
AU581594B2 (en) 1989-02-23

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