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EP0249721B1 - Plaque de cuisson électrique - Google Patents

Plaque de cuisson électrique Download PDF

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Publication number
EP0249721B1
EP0249721B1 EP87106190A EP87106190A EP0249721B1 EP 0249721 B1 EP0249721 B1 EP 0249721B1 EP 87106190 A EP87106190 A EP 87106190A EP 87106190 A EP87106190 A EP 87106190A EP 0249721 B1 EP0249721 B1 EP 0249721B1
Authority
EP
European Patent Office
Prior art keywords
hotplate
underside
temperature sensor
cover
switch
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
EP87106190A
Other languages
German (de)
English (en)
Other versions
EP0249721A1 (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
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT87106190T priority Critical patent/ATE80934T1/de
Publication of EP0249721A1 publication Critical patent/EP0249721A1/fr
Application granted granted Critical
Publication of EP0249721B1 publication Critical patent/EP0249721B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/105—Constructive details concerning the regulation of the temperature
    • 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
    • H05B3/70—Plates of cast metal

Definitions

  • the invention relates to an electric hotplate according to the preamble of claim 1.
  • the switch housing of temperature limiters according to DE-B-24 22 625 is therefore usually arranged in the unheated central zone. However, this is only possible if this central zone is sufficiently large and is not intended to accommodate other functional parts.
  • the invention has for its object to provide an electric hotplate of the type mentioned, in which on the one hand a simple construction, a space-saving arrangement of the temperature limiter and on the other hand, the most accurate switching function of this temperature limiter is guaranteed with all thermal loads occurring.
  • the switch housing is expediently completely outside the cover.
  • the cover could have at least one window-like opening in the area of the switch housing, however, the switch housing can be shielded particularly well from the heat radiated from the underside of the hotplate body if an essentially completely closed wall section of the cover is provided between the switch housing and the underside of the hotplate body is.
  • This wall section, on which the switch housing with its associated side rests essentially over the entire surface, is usually made of sheet steel, so that the heat brought up to the intermediate wall section by heat conduction is dissipated from the latter essentially over the entire cover becomes, especially if this is apart from in the area of the intermediate wall section otherwise at a distance from the heated area of the underside of the hotplate body and is therefore cooler.
  • the switch housing itself consists of, for example, a ceramic insulating material, in particular steatite.
  • the inventive design it is even possible to support the switch housing at least approximately against the underside of the hotplate body, in particular against an insulating compound embedding the heating resistor, which leads to a very space-saving design without the risk that the function of the limiter switch can be impaired.
  • the cover In order not to have to support the switch housing directly on this underside, for example due to a window opening in the cover, the cover has on its underside a recess which accommodates the switch housing, the flat bottom wall of which rests approximately on the underside of the hotplate body.
  • the switch housing thus projects beyond the underside of the hotplate body only by its housing height and by the thickness of this bottom wall.
  • the temperature sensor can be guided as close as possible to air currents and as close as possible to the inside of the cover near the switch housing, the temperature sensor is inserted through a through opening in the cover, which is adapted as closely as possible to the outer circumference of the temperature sensor, but is so far that the assembly of the temperature limiter is possible without difficulty.
  • the connecting line connecting the temperature limiter to the heating resistors is also expediently passed through a through opening in the cover on the inside thereof, so that the connecting lugs of the switch housing also lie outside the space covered by the cover.
  • the switch housing is on the outside or underside of the cover, the arrangement can be made such that the exposed or bare and non-insulated sections of the connecting leads that are connected to the switch housing are extremely short and only a correspondingly short bridge form between the switch housing and an insulating body made of ceramic, such as steatite, inserted into the through opening.
  • the temperature limiter is held by at least one plug-in holder on the hotplate, in particular exclusively on the cover, so that no separate fastening or clamping means are required to fix the switch housing.
  • the temperature limiter or the switch housing can be hung up in a simple manner practically between the passage opening for the temperature sensor and the passage opening for the insulating body on two sides facing away from one another, so that no fastening means act on the switch housing itself, but at most by the resilient suspension against the underside of the associated wall section Cover with low system pressure is applied.
  • the sections of the connecting lines lying between the switch housing and the insulating body can be used by appropriate shaping.
  • the central axis of the temperature sensor lies approximately tangentially to an imaginary circle placed around the central axis of the hotplate body, the switch housing being approximately at the center of its width to be measured in the longitudinal direction of the temperature sensor in the area of the axial plane perpendicular to the central axis of the temperature sensor of the hotplate body can lie, which then essentially also applies to the receiving recess in the cover, so that its edge walls penetrated by the temperature sensor and by the connecting lines are provided parallel to this axial plane and at right angles to the temperature sensor.
  • the cover is based on the central axis of the hotplate body - directly adjacent to the radially inner as well as immediately adjacent to the radially outer side of the receiving recess or of the switch housing on at least one projecting over the underside of the hotplate body, supported by this one-piece ring flange, as a result of which there are also relatively strongly changing profiles in this area cover.
  • the switch housing can be open on its full inner width on one side, which is provided at the same time for mounting the switch parts located in it, the switch housing then expediently with the edge surface of this open side, opposite which the switch parts and the associated end of the temperature sensor stand back, the underside of the hotplate body faces or is supported on this underside or on the associated wall section of the cover.
  • On the edge surface protruding spacers can be provided, so that there is a gap section between the remaining edge surface and the associated contact surface of the electric hotplate, which allows ventilation of the interior of the switch housing.
  • the switch housing can also have a housing cover which closes the latter on the open side, in particular a flat or plate-shaped flat cover, which forms a component integrated with the switch housing.
  • the temperature limiter can be designed essentially as described in DE-PS 2422625, to which reference is made for further details.
  • the design according to the invention is particularly suitable for those electric hotplates in which the hotplate body, in particular in the area thereof Underside, a further temperature sensor of a power control device is provided and are therefore suitable, at least for a short time, for relatively high thermal loads. It has been shown that there are temperature differences of around 140 ° C. between the temperature sensor and the switch housing during operation of the electric hotplate and that the temperature limiter can therefore be adjusted to a much higher switch-off temperature without the risk that switch parts will be damaged at these high limit temperatures can.
  • the hotplate body in the manner of an automatic hotplate, has the last-mentioned further temperature sensor in the form of a sensor capsule lying directly on the underside of the cooking vessel, in an opening provided in its center, these additional temperature sensors and the temperature limiter are suitable even for hotplates due to the inventive design relatively small diameter not in the way, but also spatially well completely separated from each other. While the further temperature sensor decreases the temperature directly on the cooking vessel, the temperature sensor of the temperature limiter decreases the temperature directly from the underside of the heated zone of the hotplate body.
  • an electric hotplate 1 has a circular or annular, solid hotplate body made of cast material 2, the annular flat top of which forms a cooking surface 3 and in the underside 4 at least one heating resistor, in particular at least two heating resistors 7 , 8 are inserted in such a way that the hotplate body 2 forms an annular, heated region 5 essentially adjoining its outer circumference and in the center a zone 6, which is delimited by the latter and is not directly heated.
  • the heating resistors 7, 8 lying in one another in spirals about the central axis 15 of the hotplate body 2 in a common plane are arranged in corresponding spiral grooves 9 in an area of the underside 4 of the hotplate body 2 closest to the cooking surface 3, with adjacent spiral grooves 9 being relatively thin Spiral bars 10 are separated from each other.
  • the heating resistors 7, 8 are embedded in the spiral grooves 9 in a contact-free manner with respect to the hotplate body 2 in an insulating compound 11, which also covers the lower end edges of the spiral webs 11 with a thin layer 12 and in the area between two adjacent spiral webs 10 a cross-sectionally protruding and therefore opposite forms the front edges of the spiral webs 10 set back lower surface.
  • the heated area 5 is delimited on the inner circumference by an annular flange 13 of the hotplate body 2 projecting further downward than the spiral webs 10 and on the outer circumference by an outer ring flange 14 projecting even further downward, which is slightly different from the outer circumference of the hotplate body 2 adjoining the cooktop 3 is offset inwards and carries a support ring 16 for supporting the electric hotplate in the region of an opening of a hob in an outer annular shoulder formed thereby.
  • the underside 4 of the hotplate body 2 is almost complete, namely in a ring zone extending from the outer ring flange 14 to the inner ring flange 13, covered by a cover-like cover 17 made of thin sheet metal, which bears essentially over the entire surface of the lower end edges of the ring flanges 13, 14 and thereby enclosing a corresponding annular space with the ring flanges 13, 14 and the underside of the hotplate body 2.
  • the cover 17 On the inner circumference of the inner ring flange 13, the cover 17 has a collar which is drawn towards the cooking surface 3 and surrounds a central opening and is formed at two diametrically opposed locations to form radially inward fastening tabs 18, which also have eye-like projections of the inner ring flange 13 used screws for securing the cover 17 are secured against the hotplate body 2.
  • the cover 17, which can also be supported only on the inner circumference of the outer ring flange 14, has a flange edge 19 lying in one plane, with which it lies against the ring flange 14.
  • a temperature sensor 21 (not shown in FIG. 2) of a hydraulic expansion system arranged so resiliently that it protrudes upwards over the cooking surface 3 in the relieving state and is pressed downward against the spring force by the placement of a cooking vessel.
  • This temperature sensor 21, which is stop-limited in its upper end position, is connected via a capillary tube 22, which is led away from its underside, to the expansion element 24 of a power control unit 23, for example formed by a pressure cell, for operating the electric hotplate, the expansion element 24 acting on a switch 25 of the power control unit 23, which acts can be set to different power ranges of the electric hotplate with an actuating button 26 arranged on an adjusting shaft.
  • a temperature limiter 27 is also provided, in which the temperature sensor 28 and the switch housing 29 forming the switch head, including the limiter switch 30 located therein, are structurally integrated with one another and form a closed structural unit.
  • the switch housing 29, which is approximately oblong in plan view and rounded in two corner areas with relatively large radii of curvature, has on one long side adjacent to the associated rounding the rod-shaped and rectilinear temperature sensor 28 protruding approximately at right angles over this long side, the length of which is greater than that of the switch housing.
  • the temperature sensor 28 consists essentially of a metallic outer tube 31, which is provided with one at its associated end Flange plate 33 is fastened in a corresponding plug-in slot of the switch housing 29 and a non-metallic inner rod 32 arranged in this outer tube 31 and has a very low expansion coefficient, the outer end of which can be adjusted at the free end of the outer tube 31 and the inner end of which lies in the switch housing 29 a pressure point for actuating the limit switch 30 is supported.
  • the central axis 35 of the temperature sensor 28 lies at right angles to an axial plane 34 of the central axis 15, which extends approximately through the middle between the longitudinal boundaries of the switch housing 29, the free end of the temperature sensor 28 reaching almost to the inner circumference of the outer ring flange 14, but without contact with it is.
  • the central axis 35 is also parallel to the cooking surface 3 or to the underside 4 of the hotplate body 2, but the temperature sensor 28 is essentially contact-free over its entire length with respect to this underside 2 and the cover 17 and is relatively close to a wall section parallel to it the cover 17 is.
  • the temperature sensor 28 is located essentially over its entire length within the space covered by the cover 17, while the switch housing 29 lies completely outside of this space on the underside of the cover 17, namely in a recess 36 molded into it.
  • This recess 36 has a flat wall section 37 as the bottom wall, on which the switch housing 29 rests with its upper side essentially over the entire surface.
  • the wall section 37 is adjoined by four, projecting downward transversely to this, and an imaginary one on the long sides Rectangular or square edge walls 38 to 41, which in cross-section according to FIGS. 3 and 4 are inclined downwards and outwards at acute angles and have different heights.
  • the two edge walls 38, 39 which are approximately at right angles to the temperature sensor 28 have the greatest height, while the edge wall 41 lying at right angles thereto and closer to the central axis 15 has the smallest height, namely only from the level of the underside 4 of the heated area 5 to Level of the front edge of the inner ring flange 13 is sufficient; the opposite edge wall 40 has an intermediate height and merges with the shoulder 19 into the flange 19.
  • the width of the wall section 37 measured in the longitudinal direction of the switch housing 29 is only very slightly larger than the length of the switch housing 29, while the extension of the wall section 37 measured in the longitudinal direction of the temperature sensor 28 is larger compared to the associated width of the switch housing 29, but the switch housing 29 is immediate is adjacent to the edge wall 38 associated with the temperature sensor 28.
  • this edge wall 38 Provided in this edge wall 38 is a relatively narrow passage opening 42, which is adapted to the outer cross section of the temperature sensor 28, through which the temperature sensor 28 is inserted immediately adjacent to the switch housing 29 and on the limitation of which the temperature sensor 28 is supported in a point-like manner.
  • a larger through opening 43 is provided, into which an insulating piece 44 is inserted with almost no play, with a shaft section which on the inside of the recess 36 has a head which is widened relative to the through opening 43 and which can be located directly adjacent to the edge wall 39.
  • two connecting lines 45 are passed such that their exposed, double-angled section 46 between the insulating piece 44 and the switch housing 29 are relatively short, namely in the longitudinal direction of the temperature sensor 28 have an expansion that is only slightly larger than that Length of connecting lugs 47, which protrude beyond the side of the switch housing 29 remote from the temperature sensor 28 on both sides adjacent to its narrow sides and parallel to one another.
  • the insulating piece 44 is secured in its position in relation to the connecting lines 45 by bends of these connecting lines 45 lying directly adjacent to its two ends, the sections 46 adjacent to the insulating piece 44 being separated from one another and then angled once more in the direction of the switch housing 29.
  • the sections of the connecting lines 45 lying within the cover 17 are connected to connecting pins at the ends of the heating resistors 7, 8, which protrude downward beyond the insulating compound 11 and are located close to the recess 36.
  • the switch housing 29 of the temperature limiter 27 has a base body 48 which receives the limiter switch 30 and the flange plate 33 in a completely recessed manner, which is open on its upper side for inserting all the switch parts and the flange plate 33 and can be closed with a housing cover 49 which has the same layout.
  • the switch housing 29 extends at most up to the underside of the cover 17 formed by the flange edge 19 or projects only extremely slightly downwards over it.
  • the flat wall section 37 lies only linearly in the region of the end edges of the spiral webs 10 or the layer 12 and is contact-free in the region of the spiral grooves 9 with the formation of laterally open channels with respect to the insulating compound 11.
  • the configuration according to the invention or a similar embodiment is also advantageously suitable for coupling the temperature sensor 28 to the area to be measured in a particularly closely or intensely heat-conducting manner by means of additional measures.
  • the temperature sensor 28 can be provided under the cover 17 with a baffle plate made of stainless steel or the like, which protrudes substantially beyond its outer shape and expediently closely surrounds the temperature sensor 28 approximately over its entire length and approximately parallel to the underside of the hotplate body 2 on both sides of the temperature sensor 28 protrudes.
  • This baffle 50 can be pushed in the longitudinal direction onto the temperature sensor 28 in a simple manner in that it is provided with slits lying one behind the other transversely to the temperature sensor 28 and sections lying between adjacent slits are alternately bent out of the plane of the baffle 50 in a channel-like manner on both sides, so that a plug-in opening for the temperature sensor 28 which is closed over the circumference in the longitudinal view of the temperature sensor 28 is formed.
  • the wings of the guide plate 50 projecting on both sides above the temperature sensor 28 can lie in a common plane or can be bent out of this plane in such a way that they are either closer to the underside 4 of the hotplate body 2 or even lie against it over a large area or that they are further away from it Bottom 4 are provided close to the cover 7, depending on how the thermal coupling is to be adjusted.
  • the outer edge of the guide plate 50 can also be designed so that it is one Opposing surface of the rest of the hotplate, for example directly opposite the inner surface of the outer ring flange 14, so that the temperature sensor 28 is secured against lateral deflections by a stop on this counter surface.
  • an auxiliary contact for a hot display or as a hot display can also be provided, so that the individual contacts can be dimensioned weaker due to lower power loads. This additional auxiliary contact closes when the temperature rises.
  • the design according to the invention is also suitable for those electric hotplates which do not have an automatic temperature sensor 21 in the center, but in which the breakthrough-free central zone 6 is occupied by other components, such as temperature switches, fastening elements or the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Resistance Heating (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Stoves And Ranges (AREA)
  • Massaging Devices (AREA)
  • General Induction Heating (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)
  • Thermally Actuated Switches (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Table Devices Or Equipment (AREA)
  • Insulated Conductors (AREA)

Claims (11)

  1. Plaque de cuisson électrique (1) possédant un corps de plaque (2) muni sur son coté inférieur (4), éloigné d'une surface de cuisson (3), autour d'une zone centrale (6), d'au moins une résistance chauffante (7, 8) ainsi que d'un recouvrement (17), et qui présente au moins un limiteur de température (27) disposé par un boîtier d'interrupteur (29), recevant un interrupteur limiteur (30), dans la partie chauffée (5) sur le côté inférieur du corps (2) de la plaque de cuisson, limiteur qui est pourvu d'un palpeur de température (28), caractérisée en ce que le palpeur (28) du limiteur de température (27) est réalisé comme un palpeur à tige de dilatation disposé librement à l'extérieur du boîtier d'interrupteur (29), palpeur qui est situé complètement en dehors de la zone centrale (6) et à distance du côté inférieur (4) du corps (2) de la plaque, à peu près parallèlement à ce côté inférieur, et que le boîtier d'interrupteur (29) est agencé essentiellement en position encastrée par rapport au côté inférieur de la plaque de cuisson électrique (1), à proximité du côté inférieur de la partie chauffée (5) ainsi que dans un creux (36) du dessous du recouvrement (17).
  2. Plaque de cuisson électrique selon la revendication 1, caractérisée en ce que le côté inférieur (4) du corps (2) de la plaque est formé en partie au moins par le recouvrement (17) et que le boîtier d'interrupteur (29) est situé au moins partiellement à l'extérieur du recouvrement (17) et le palpeur à tige de dilatation (28) se trouve pour l'essentiel à l'intérieur du recouvrement (17), le boîtier d'interrupteur (29) étant situé de préférence complètement en dehors du recouvrement (17) et un segment de paroi (37) essentiellement fermé complètement du recouvrement étant prévu en particulier entre le boîtier d'interrupteur (29) et le côté inférieur (4) du corps (2) de la plaque de cuisson.
  3. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que le boîtier d'interrupteur (29) est appuyé au moins à peu près contre le côté inférieur (4) du corps (2) de la plaque, en particulier contre une masse isolante (11) dans laquelle est noyée la résistance chauffante (7, 8), et que, de préférence, une paroi de fond plane du creux (6) recevant le boîtier d'interrupteur (29) du recouvrement (17), est appliquée à peu près contre le côté inférieur (4) du corps (2) de la plaque.
  4. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que le palpeur de température (28) traverse une ouverture de passage (42) d'un recouvrement (17), sur le côté intérieur de celui-ci, en particulier à proximité immédiate du boîtier d'interrupteur (29), ou que des conducteurs de raccordement (45) du limiteur de température (27) s'étendent depuis le boîtier d'interrupteur (29) par une ouverture de traversée (43) du recouvrement (17), sur le côté intérieur de celui-ci, jusqu'à la résistance chauffante (7, 8) et sont situés de préférence, dans la région de l'ouverture de traversée (43), dans une pièce isolante (44) en céramique ou analogue insérée dans cette ouverture.
  5. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que le limiteur de température (27) est maintenu par au moins un dispositif de maintien à enfichage sur la plaque de cuisson, en particulier exclusivement sur le recouvrement (17), le palpeur de température (28), engagé dans l'ouverture de passage (42), et/ou la pièce isolante (44), engagée dans l'ouverture de traversée (43) sur le côté du boîtier d'interrupteur (29) éloigné de l'ouverture mentionnée en premier, formant chaque fois un dispositif de maintien par enfichage.
  6. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce qu'une ouverture de passage (42) pour le palpeur de température (28) et/ou une ouverture de traversée (43) pour des conducteurs de raccordement (45) sont prévues dans un segment de paroi orienté transversalement au côté inférieur (4) du corps (2) de la plaque de cuisson d'un recouvrement (17), en particulier dans deux parois de bords (38, 39) du creux (36) situées à peu près parallèlement l'une en face de l'autre et inclinées en section droite.
  7. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que des tronçons (46) de conducteurs de raccordement (45) faisant suite à des cosses de raccordement (47) du boîtier d'interrupteur (29), en particulier des tronçons (46) situés entre les cosses (47) et la pièce isolante (44), sont prévus comme des bras de support élastiques, de préférence coudés, pour le limiteur de température (27), bras qui sont formés de fil à section massive et de forme stable.
  8. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que l'axe (35) du palpeur de température (28) est à peu près tangentiel à un cercle entourant l'axe central (15) du corps (2) de la plaque, cercle qui passe de préférence à peu près par le milieu de la largeur de la partie (5) présentant les résistances chauffantes (7, 8), le boîtier d'interrupteur (29) étant situé en particulier dans la région du plan axial (34) du corps (2) perpendiculaire à l'axe (35) du palpeur (28).
  9. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que le boîtier d'interrupteur (29) est placé entre des jupes annulaires extérieure et intérieure (14, 13) faisant saillie du côté inférieur du corps (2) de la plaque, et que le recouvrement (17) est de préférence appuyé à proximité du creux (36) sur au moins l'une de ces jupes annulaires (13, 14), notamment sur son côté d'extrémité frontale.
  10. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce que le boîtier d'interrupteur (29) comporte un corps de boîtier (48) en forme de coupelle, qui est ouvert d'un côté pour le montage par enfichage des pièces de l'interrupteur et du palpeur de température (28), et qui est notamment fermé sur ce côté par un couvercle (49), et que le corps (48) du boîtier est dirigé de préférence par son côté ouvert vers le côté inférieur (4) du corps (2) de la plaque.
  11. Plaque de cuisson électrique selon une des revendications précédentes, caractérisée en ce qu'un palpeur de température supplémentaire, faisant partie d'un appareil de contrôle de la puissance (23), est prévu sur le corps (2) de la plaque, notamment sur le côté inférieur de ce corps (2), lequel comporte ce palpeur de température (21) de préférence dans une ouverture (20) prévue en son centre, palpeur supplémentaire (21) qui s'étend jusque dans la région de la surface de cuisson (3) et est notamment réalisé sous la forme d'un palpeur de température hydraulique (21) relié par un tube capillaire (22) à un élément de dilatation (24) agissant sur un interrupteur (25).
EP87106190A 1986-05-27 1987-04-29 Plaque de cuisson électrique Expired - Lifetime EP0249721B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106190T ATE80934T1 (de) 1986-05-27 1987-04-29 Elektrokochplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863617742 DE3617742A1 (de) 1986-05-27 1986-05-27 Elektrokochplatte
DE3617742 1986-05-27

Publications (2)

Publication Number Publication Date
EP0249721A1 EP0249721A1 (fr) 1987-12-23
EP0249721B1 true EP0249721B1 (fr) 1992-09-23

Family

ID=6301704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106190A Expired - Lifetime EP0249721B1 (fr) 1986-05-27 1987-04-29 Plaque de cuisson électrique

Country Status (7)

Country Link
US (1) US4723067A (fr)
EP (1) EP0249721B1 (fr)
JP (1) JPS6366883A (fr)
AT (1) ATE80934T1 (fr)
AU (1) AU593481B2 (fr)
DE (2) DE3617742A1 (fr)
YU (1) YU96087A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128467A1 (de) * 1991-05-22 1992-11-26 Braun Ag Temperatursensor fuer eine bruehgetraenkezubereitungsmaschine
JP2636557B2 (ja) * 1991-05-31 1997-07-30 日本鋼管株式会社 横型連続焼鈍炉における被焼鈍材の炉内張力検出方法
DE4212289A1 (de) * 1992-04-11 1993-10-14 Ego Elektro Blanc & Fischer Elektro-Heizeinheit, insbesondere Elektro-Kochplatte
GB2335541A (en) * 1998-03-20 1999-09-22 Ceramaspeed Ltd Electric heater comprising a temperature sensing and limiting arrangement
AU2002341370A1 (en) * 2001-10-15 2003-04-28 Bezalel Urban Fire hazard prevention system
ES1057791Y (es) 2004-06-14 2005-01-01 Eika S Coop Calefactor radiante en una encimera de coccion, con un interruptor termico.
DE602006021729D1 (de) * 2006-06-09 2011-06-16 Eika S Coop In einem Kochfeld mit einem Thermoschalter montierter Strahlungsheizkörper
CN108770089B (zh) * 2018-07-09 2024-06-04 江苏众众电热科技有限公司 一种新能源汽车仪表台加热器
JP6935159B1 (ja) 2020-04-30 2021-09-15 中外炉工業株式会社 帯状体の処理状態シミュレーション方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148407A (en) * 1937-07-06 1939-02-21 Standard Electric Mfg Corp Surface burner control
US2311087A (en) * 1939-05-13 1943-02-16 Sandell Bror Hugo Ragnvald Electrically heated stove and the like
DE1120099B (de) * 1955-04-21 1961-12-21 Licentia Gmbh Elektrisch beheizte Massekochplatte
DE1127007B (de) * 1958-03-28 1962-04-05 Karl Fischer Elektrisch beheizte Masse-Schnellkochplatte
IL29462A (en) * 1967-02-16 1971-11-29 Fischer K Electric hot-plates
US3749883A (en) * 1972-07-17 1973-07-31 Emerson Electric Co Electric heater assembly
US4135081A (en) * 1974-05-10 1979-01-16 Karl Fischer Electric cooking plate with a temperature limiter
DE2459649B2 (de) * 1974-12-17 1979-10-18 Karl 7519 Oberderdingen Fischer Elektrokochplatte mit einer aus drei Heizwiderständen bestehenden Beheizung
DE2551137C2 (de) * 1975-11-14 1986-04-24 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrischer Strahlungsheizkörper für Glaskeramikkochplatten
DE2620004C3 (de) * 1976-05-06 1979-05-31 Fischer, Karl, 7519 Oberderdingen Elektrokochplatte mit einem Temperaturbegrenzer
DE2627373B2 (de) * 1976-06-18 1978-10-12 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Signaleinrichtung an Kochgeräten mit einer Glaskeramikkochfläche
DE3027998A1 (de) * 1980-07-24 1982-02-25 Fischer, Karl, 7519 Oberderdingen Elektrische kochplatte mit einem ueberhitzungsschutzschalter
DE8133341U1 (de) * 1980-11-17 1982-03-25 Micropore International Ltd., Droitwich, Worcestershire Elektrischer strahlungsheizer fuer herde mit glaskeramikdeckplatten
DE3131462A1 (de) * 1981-08-08 1983-02-24 Karl 7519 Oberderdingen Fischer Temperaturbegrenzte kochplatte
EP0079483B1 (fr) * 1981-11-10 1986-02-26 E.G.O. Elektro-Geräte Blanc u. Fischer Dispositif de commande pour une plaque de cuisson électrique
DE8301364U1 (fr) * 1982-07-07 1987-06-25 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
DE3315333A1 (de) * 1983-04-28 1984-10-31 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Kochgeraet mit mehreren elektrischen kochplatten

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AU7334387A (en) 1987-12-03
DE3781833D1 (de) 1992-10-29
ATE80934T1 (de) 1992-10-15
US4723067A (en) 1988-02-02
JPS6366883A (ja) 1988-03-25
YU96087A (en) 1989-10-31
AU593481B2 (en) 1990-02-08
EP0249721A1 (fr) 1987-12-23
DE3617742A1 (de) 1987-12-03

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