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EP0303854B1 - Radiateur électrique - Google Patents

Radiateur électrique Download PDF

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Publication number
EP0303854B1
EP0303854B1 EP88111883A EP88111883A EP0303854B1 EP 0303854 B1 EP0303854 B1 EP 0303854B1 EP 88111883 A EP88111883 A EP 88111883A EP 88111883 A EP88111883 A EP 88111883A EP 0303854 B1 EP0303854 B1 EP 0303854B1
Authority
EP
European Patent Office
Prior art keywords
heating resistor
heating
spiral
resistor
heater according
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
EP88111883A
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German (de)
English (en)
Other versions
EP0303854A1 (fr
Inventor
Gerhard Goessler
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.)
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Publication date
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT88111883T priority Critical patent/ATE99485T1/de
Publication of EP0303854A1 publication Critical patent/EP0303854A1/fr
Application granted granted Critical
Publication of EP0303854B1 publication Critical patent/EP0303854B1/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
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/04—Heating plates with overheat protection means

Definitions

  • the invention relates to an electric heater according to the preamble of claim 1.
  • radiators which have become known, for example, from DE-A1-33 15 438, are mostly provided as radiant heaters for hotplates of cookers, the cooking surface determined by the entire heating field of the radiator in each operating switch position, that is to say, for example, in each power setting of the Radiator, as a whole and not only in each case, as is also conceivable, is heated in different hobs.
  • the heating element can also be provided for heating an oven muffle, a cast-iron body of an electric hotplate or another wall to be heated.
  • the radiator is expediently placed on the back of a translucent one Plate, for example a glass ceramic plate arranged.
  • the usual arrangement of the heating resistors is provided so that with a so-called seven-cycle switch, three heating resistors can be switched in six power levels between a minimum and a maximum total power by optionally connecting them individually, in series and in parallel, while the seventh switching level switches off completely of all heating resistors.
  • the heating resistors also usually have different nominal powers such that a heating resistor to be operated just below the mean total power, for example in the fourth power stage in a single circuit, has the highest nominal power, a heating resistor in an underlying one, for example the third power stage in a single circuit, has a medium nominal power and the third Heating resistor has the lowest rated power. If the three heating resistors are arranged in only two spirals, i.e. in a two-start spiral, then at certain power settings in which one or more heating resistors are completely switched off, a relatively uneven distribution of the heating can occur in such a way that either only in the peripheral area or only in the central area of the total heating field is heating power, which may be desirable in some applications, but is not practical in others.
  • a radiator made known by GB-A-2 186 166 has a first heating resistor with a reversal of direction in the central area of the heating field, which allows this central area to be switched on and off for itself.
  • the spiral turns of the first heating resistor are located directly adjacent to one another, and spiral turns of another heating resistor engage between the double-track spiral turns of this heating resistor.
  • the radiator of CH-A-193 572 has only two immediately adjacent and interlocking spirals of a single first heating resistor, which could be operated separately.
  • the invention has for its object to provide a radiator of the type mentioned, in which the length of at least one first heating resistor can be selected to be greater than would be possible when laying in a single spiral, so that this heating resistor due to its length can be equipped with a relatively high nominal power and still ensure trouble-free installation in the heating field.
  • a spiral formed by this first heating resistor can be connected to the Be spiral shape extended at the periphery and / or in the center of the heating field, but there is a particularly advantageous embodiment if the first heating resistor forms an outer spiral and an inner spiral, the outermost turn of the outer spiral, all other spiral turns of this first heating resistor outside surrounds. It would also be conceivable for the first heating resistor to form three or more spirals, in particular also one inside the other, which would increase its length and, above all, improve its uniform distribution over the entire heating field. If the heating resistor consists of a wire coil, the wire cross-section can be selected to be relatively small despite the high nominal power and a relatively large coil pitch can be provided, which benefits the service life of the heating resistor.
  • heating resistors are then not arranged continuously in a common plane over their entire length, but rather between adjacent sections or spirals of the respective heating resistor Electrically conductive connecting bridges are to be provided, which are offset to the rear or front of the heating resistor in relation to these sections and bypass the other heating resistor (s) without contact.
  • a particularly advantageous embodiment therefore results if only a single heating resistor, in particular the one with the highest rated power, is extended in the manner described, since this can then be formed continuously and continuously over its entire length between its two ends provided for the electrical connection and forms a longitudinal section between its ends, which connects a spiral to the subsequent, in particular likewise spiral section.
  • the invention further provides that longitudinal sections of a heating resistor are only spaced apart from one another in an insulating body and longitudinal sections lying therebetween are essentially exposed, in particular in sections of a spiral groove.
  • the insulating support expediently has rib-like or wart-shaped protrusions formed from it in the longitudinal direction of the respective heating resistor, in which the heating resistor or the heating coil is embedded on part of the circumference of the coil, the respective heating resistor in the region of the elevations approximately up to Half can be embedded and the area of the central axis of the heating coil expediently remains largely free of embedding in such a way that the inner circumference of the heating coil in the area of the embedding need not be completely covered by the material of the insulating body, but can radiate directly.
  • the elevations can be formed in a particularly advantageous manner in that a portion of the spiral groove is formed between adjacent elevations in the longitudinal direction of the heating resistor, so that the elevations do not have to protrude over the front or front surface of the insulating body, but rather together with this front surface the top surfaces of the elevations lie essentially in one plane.
  • this front surface is then practically hollowed out in the area of these longitudinal sections by corresponding depressions, these depressions forming the sections of the spiral groove.
  • the training can also be provided according to DE-A1-27 29 929, in which the elevations receiving the heating resistors protrude beyond the front of the insulating body and to which reference is made here for further details and effects.
  • the carrier 1 has a carrier 2 which is open in the form of a shell and is composed of several parts.
  • the carrier 2 consists essentially of a carrier shell 3 made of sheet metal or a similar, thin-walled material, in which one opposite Its bottom-supported, plate-shaped or card-shaped insulating body 4 is arranged, which is pressed from an insulating material containing fibrous materials and has a cardboard-like structure.
  • the insulating body 4 which is centered with respect to the edge or jacket of the supporting shell 3 and extends over the largest part of the base area of the supporting shell 3, has an edge 5 which projects beyond its front side and is thicker than it and which is integral with the insulating body 4 or as a separate component in Can be formed in the form of a ring, which then expediently overlaps the insulating body 4 with an annular shoulder on the front.
  • the edge 5 protrudes slightly beyond the edge of the support shell 3 and forms a flat end surface which is slightly elastically resilient in accordance with the insulating material and with which the heating element 1, forming a closed structural unit, is resiliently pressed against the back of a plate, for example a glass ceramic plate can be that an elastically self-adjusting system is always guaranteed and the inside of the shell is sealed to the outside.
  • the insulating body 4 and the edge 5 are arranged on an at least one-layer insulating filling 6, which lies against the inside of the shell bottom of the supporting shell 3 and, in contrast to the self-supporting insulating body 4, consists of a material of relatively low mechanical strength but high thermal insulation capacity, for example of a bulk material.
  • the front side 7 of the heating element 1 is formed by the end face of the insulating element 4 which is exposed inside the shell and, with its surface area limited by the inner circumference of the edge 5, practically determines the heating field 8 of the heating element 1.
  • the rear side 9 of the insulating element 4 can only be in the edge area on the insulating filling 6 be supported and otherwise have a gap distance from this.
  • the heating field 8 has one to its central axis 10 centrically symmetrical, for example circular, oval, rectangular or square shape, but it can also have other basic shapes.
  • the individual heating resistor On the front 7 of the insulating body 4, three heating resistors 11, 12, 13 are attached in a common plane perpendicular to the central axis 10, the individual heating resistor being defined in that it is either switched on or off as a whole in the respective power level; the individual heating resistor can thus consist of separate, connected heating resistor sections or of a heating resistor which is continuous between its ends.
  • the three heating resistors are formed by wire coils of different lengths and different wire cross-sections, but approximately the same distance between the wires of each turn, the heating resistor 11 having the greatest length and the largest wire cross-section, the heating resistor 12 the smallest length and the smallest wire cross-section and the heating resistor 13 one have an intermediate length and an intermediate wire cross-section.
  • the heating resistors 11, 12, 13 are laid between the periphery 14 of the heating field 8 formed by the inner circumference of the edge 5 and the center 15 thereof in spirals 16, 17, 18, 19, the spiral course of which essentially corresponds to the basic shape of the heating field 8, but with round basic shape is only rounded over an arc angle of about 300 °, while they run approximately rectilinearly and parallel to one another over the remaining arc angle including a connector for the heating resistors.
  • the number of spirals is larger than the number of heating resistors and the number of spiral turns is larger than that of the spirals.
  • All spiral turns run essentially over their entire length parallel or with constant sections to one another, with all distances between adjacent ones Spiral turns are essentially the same and smaller than their cross-sectional width, so that there is a very dense occupation of the heating field with the heating resistors.
  • the longest heating resistor 11 forms two interlocking spirals, namely an outer spiral 16 and an inner spiral 17, the outer spiral 16 occupying only slightly less than or approximately two full spiral windings 20, between which there are as many spiral windings of other spirals as heating resistors are provided.
  • the inner spiral 17, on the other hand, has a somewhat smaller number of spiral windings, namely only just under two spiral windings, and with its inner end, like the outer spiral 16, extends approximately to the center 15 of the heating field 8.
  • the spiral 18 of the heating resistor 12 which has essentially the same number of spiral windings 22 as the spiral 16 and the inner end of which is approximately in the center of the S-bend 25.
  • the spiral 19 of the heating resistor 13 which has a number of spiral windings 23 corresponding to the spiral 16, namely approximately two spiral windings 23 and whose inner end is essentially in the center of the S-bow 26 is such that the two aforementioned inner ends are provided on both sides of the longitudinal section 24.
  • the outer or outermost spiral turn 23 of the spiral 19 extends approximately to the periphery 14 of the heating field 8, while the outermost spiral turn 20 of the heating resistor 11 is offset inwards by at least one spiral turn of the entire spiral arrangement.
  • the center 15 of the heating field 8 on the other hand, there are essentially sections of all three heating resistors 11, 12, 13 in an approximately uniform distribution, so that an unheated central zone can be dispensed with entirely.
  • the ends of the heating resistors 11, 12, 13 intended for the electrical connection are each formed by a short section with adjacent helical windings, on the inner circumference of which the front 7 opposite a bow-shaped connecting wire is attached, which is adjacent to the coil end with a U-shaped bracket section is sunk in the insulating body 4 such that the free stirrup leg protrudes from the inside of the insulating body 4 towards its front side 7, the ends of these free stirrup legs being intended for electrical connection by means of welding or soldering.
  • Both ends 27, 28 of the spirals 16, 17 of the heating resistor 11 lie in the region of the periphery 14 of the heating field 8 on the outside of the entire spiral arrangement, while only one end 29 and 31 of the remaining heating resistors 12, 13 lies in this area.
  • These outer connection ends lie essentially in the connection piece 34 enclosing arc angle, wherein the connector 34 has, for example, an insulating material base body which is attached to the edge of the shell of the support shell 3 such that it protrudes essentially only over the outer periphery and lies between the planes of the end face of the edge 5 and the bottom of the support shell 3 .
  • the connector 34 is provided with connecting members, for example with connecting plugs for connecting lines, which connect the radiator 1 to a manually operated switching device, for example a seven-stroke switch.
  • Rod-shaped connecting wires are guided from the connecting members through the edge 5 immediately adjacent to the front side 7 of the insulating body 4 into the interior of the shell.
  • the switch housing of a temperature limiter 35 Adjacent to the connecting piece 34, the switch housing of a temperature limiter 35 is fastened to the outer periphery of the shell edge of the support shell 3, via which at least one heating resistor, but expediently fewer than all heating resistors, are switched.
  • the outer, immediately adjacent ends 27, 31 of the heating resistors 11, 13 are directly connected to each other in an electrically conductive manner and connected together with the interposition of the temperature limiter 35 to an associated common connecting element of the connecting piece 34, while the other end 28 of the heating resistor 11 and the outer end 29 of the heating resistor 12 are separately connected to two further connecting members.
  • the inner ends 30, 32 of the heating resistors 12, 13 are directly electrically connected to one another by a bridge 33, which engages around the central longitudinal section 24 on the side remote from the edge 5 without contact and, for example, lies between the insulating body 4 and the insulating filling 6 on the rear side 9 can.
  • These inner ends 30, 32 are together via a connecting wire to a further connection element of the connecting piece 34 connected, this connecting wire bypassing the heating resistors or spirals on the side facing away from the edge 5 without contact and, for example, also lying like the bridge 33 on the rear side 9 of the insulating body 4.
  • the heating resistors 11, 12, 13 are expediently switched so that in the first, lowest switching stage all heating resistors and in the second switching stage only two heating resistors, namely heating resistors 11 and 13, are connected in series, while in the third and fourth switching stages on the one hand Heating resistor 13 and on the other hand, the heating resistor 11 is turned on alone; in the fifth switching stage the two heating resistors of the second switching stage are connected in parallel and finally in the sixth switching stage all heating resistors are also connected in parallel.
  • the heating resistor 11 is thus in operation in all other switching stages except for one switching stage, which also applies to the heating resistor 13, while the heating resistor 12 is only in the lowest and highest switching stage.
  • the described design results in a very evenly distributed power density in each switching stage and, in addition, the heating resistors that are brightly lit due to their wire cross-section or their power load during operation give practically every switching stage an immediate, essentially evenly distributed light indicator for the Operating state of the radiator 1, so that based on the glass ceramic plate or the like.
  • the glow pattern can be recognized easily and only with a slight delay the switch-on state of the radiator can be recognized.
  • the temperature limiter 35 has a straight rod-shaped temperature sensor 36 rigidly attached to the switch housing with its outer tube, which is expediently designed as an expansion rod sensor, penetrates the edge 5 in bore-like or groove-like openings on two opposite sides and is spaced from the front side 7 or with a small constant distance from the heating resistors 11, 12 13, the heating field 8 so that it with a smaller distance from the central axis 10 than from the periphery 14 on the ends 27, 28, 29, 31 of the heating resistors 11, 12, 13th opposite side of the axial plane of the carrier 2 parallel to it. Due to the temperature limiter 35, which switches off a maximum of two of the three heating resistors, a partial power remains switched on in the highest switching stage when it responds by further operation of the heating resistor 12.
  • the heating resistors are exclusively fixed by embedding in the front 7 of the insulating body 4, namely either by pressing the insulating body 4 or by pressing in after pressing over a part of its circumference which is less than half the total circumference.
  • At least one heating resistor, in particular heating resistor 11, is here over its entire length, i.e. continuously embedded to the same depth with each turn, the embedding between adjacent coils of the heating resistor can be provided such that the inner circumference of these coils is at least partially exposed to the front and is not, as is also conceivable, completely covered by insulating material.
  • the attachment by embedding in the manner described is only provided on longitudinal sections of the heating resistor which are spaced apart from one another in such a way that embedded between them Longitudinal sections lying at least with respect to the inner circumference of the helix are substantially completely exposed and, if need be, abut or engage in the insulating body 4 with the mentioned partial circumference of their outer circumference.
  • the exposed longitudinal sections are expediently longer than the embedded longitudinal sections.
  • spiral groove sections 38 lying one behind the other in the respective spiral longitudinal direction are formed in the front side 7 of the insulating body 4, these sections 38 forming a spiral groove 37 which is essentially regularly interrupted over its entire length and in cross section the associated partial scope of the heating resistor 12 or 13 are adapted.
  • these spiral groove sections 38 are shown in FIG. 1 only for the spiral groove 37 receiving the heating resistor 13.
  • the interruptions of the spiral groove 37 form elevations 39 with respect to the groove base thereof, which can protrude less or more than the groove depth above the groove base, but expediently exactly the same height as the groove depth, so that their head surfaces are then flush in the plane of the front side 7 of the insulating body 4 lie.
  • elevations 39 instead of a flat front 7 of the insulating body 4 between the spiral turns and in the region of the elevations 39, it is also conceivable to provide depressions or groove-like depressions between adjacent spiral turns such that the respective heating resistor on both sides in the manner of dam-like slopes between obliquely rising flanks of the insulating body lies, these flanks determine the partial circumference with which the heating resistor engages in the insulating body.
  • the insulating material of the insulating body 4 directly adjacent to the heating resistors can be better compressed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Saccharide Compounds (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (14)

  1. Corps chauffant électrique (1), notamment corps chauffant par rayonnement muni d'un support (2) qui forme une face antérieure (7) en vue de la transmission de chaleur, et sur lequel est prévu, pour former une zone chauffante (8), un certain nombre de spirales (16, 17, 18, 19) d'au moins une résistance chauffante (11, 12, 13) comportant des segments résistifs longilignes, au moins une première résistance chauffante (11) présentant au moins deux enroulements spiroïdaux (20, 21) imbriqués l'un dans l'autre et raccordés l'un à l'autre par l'intermédiaire d'au moins un tronçon longitudinal (24) faisant fonction de pièce de liaison, et la zone chauffante (8) comprenant un enroulement spiroïdal externe extrême (23), un centre (15) et une périphérie (14), caractérisé par le fait qu'au moins un autre segment résistif d'au moins une résistance chauffante (12, 13) s'engage entre les enroulements spiroïdaux (20, 21), imbriqués l'un dans l'autre, de la première résistance chauffante (11) prévue au minimum.
  2. Corps chauffant selon la revendication 1, caractérisé par le fait qu'au moins un tronçon longitudinal (24) de la pièce de liaison est réalisé sous la forme d'un brin résistif ; par le fait que, de préférence, la première résistance chauffante (11) forme exclusivement deux spirales (16, 17) ; et par le fait qu'en particulier deux arceaux (25, 26), fusionnant l'un dans l'autre, forment le tronçon longitudinal (24) configuré en S.
  3. Corps chauffant selon la revendication 1 ou 2, caractérisé par le fait qu'une pluralité de résistances chauffantes (11, 12, 13), incluant la première résistance chauffante (11), sont prévues sur le support (2) en des spirales présentant des enroulements spiroïdaux (20, 21, 22, 23) mutuellement imbriquës ; par le fait que, de préférence, les résistances chauffantes peuvent être enclenchées en un nombre de paliers de puissance supérieur à leur nombre ; et par le fait que notamment les enroulements spiroïdaux (20, 21) de la première résistance chauffante (11) sont imbriqués l'un dans l'autre en alternance et sont interposés, en alternance, entre des enroulements spiroïdaux (22, 23) d'au moins l'une des autres résistances chauffantes (12, 13).
  4. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une spirale (16, 17) de la première résistance chauffante (11) s'étend, pour l'essentiel, jusqu'au centre (15) et/ou approximativement jusqu'à la périphérie (14) de la zone chauffante (8) ; et par le fait que, de préférence, au moins une résistance chauffante (12, 13) et notamment, hormis la première résistance chauffante (11), toutes les autres résistances chauffantes (12, 13) sont conçues en tant que spirales simples (18, 19).
  5. Corps chauffant selon l'une des revendications 2 à 4, caractérisé par le fait qu'au moins un, en particulier un unique enroulement spiroïdal (22, 23) d'une autre résistance chauffante (12, 13) se trouve entre deux enroulements spiroïdaux (20, 21) de deux spirales respectives (16, 17) de la première résistance chauffante (11) ; et par le fait que des enroulements spiroïdaux (22, 23) d'autres résistances chauffantes (12, 13) sont de préférence prévus, en alternance, entre des enroulements spiroïdaux voisins (20, 21) de la première résistance chauffante (11).
  6. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait que des enroulements spiroïdaux internes extrêmes (20, 21) de la première résistance chauffante (11), situés dans la région du centre (15) de la zone chauffante (8), sont en liaison mutuelle électriquement conductrice à la face antérieure (7) du support (2) ; par le fait que ces enroulements spiroïdaux (20, 21) se raccordent l'un à l'autre, en particulier, par l'intermédiaire de deux arceaux (25, 26) du tronçon longitudinal (24) qui présentent des orientations inverses ; et par le fait que, de préférence, un segment résistif situé dans la pièce de liaison de la première résistance chauffante (11) est formé par l'extrémité interne (30, 32) d'une résistance chauffante (12, 13), la première résistance chauffante (11) étant réalisée d'un seul trait, entre ses extrémités, sous la forme d'un brin résistif ininterrompu.
  7. Corps chauffant selon l'une des revendications 2 à 6, caractérisé par le fait qu'un segment résistif (30) d'une résistance chauffante (12) se trouve à l'intérieur de l'un de deux arceaux (25, 26) du tronçon longitudinal (24), et un autre segment résistif se trouve à l'intérieur d'un autre arceau (26) du tronçon longitudinal (24) ; et par le fait que, de préférence, ces deux segments résistifs sont en liaison mutuelle électriquement conductrice dans une région en retrait par rapport à la face antérieure (7) du support (2), et/ou sont formés par des deuxième et troisième résistances chauffantes (12, 13) distinctes de la première résistance chauffante (11).
  8. Corps chauffant selon l'une des revendications 3 à 7, caractérisé par le fait qu'un enroulement spiroïdal externe extrême (20) de la première résistance chauffante (11) se trouve à l'intérieur d'au moins un enroulement spiroïdal (23) d'une autre résistance chauffante (13) ; et par le fait que cet enroulement spiroïdal externe extrême (20) de la première résistance chauffante (11) est prévu, en particulier, au voisinage de l'enroulement spiroïdal externe extrême (23) de la zone chauffante (8).
  9. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait que deux spirales (16, 17) de la première résistance chauffante (11) présentent des nombres différents d'enroulements spiroïdaux (20, 21) ; par le fait que, de préférence, une spirale externe (16) de la première résistance chauffante (11) présente un plus grand nombre d'enroulements spiroïdaux (20) qu'une spirale interne (17) de la première résistance chauffante (11) ; et par le fait que la spirale interne (17) est notamment formée, pour l'essentiel, par un unique enroulement spiroïdal (21).
  10. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait qu'une extrémité (27) de la première résistance chauffante (11), en particulier l'extrémité (27) de son enroulement spiroïdal externe extrême (20), est connectée à un organe de raccordement électrique, avec interposition d'un limiteur de température (35) ; et par le fait que, de préférence, cette extrémité (27) est raccordée conjointement à une extrémité (31) de l'enroulement spiroïdal externe extrême (23) de la zone chauffante (8).
  11. Corps chauffant selon l'une des revendications 3 à 10, caractérisé par le fait que trois résistances chauffantes (11, 12, 13), y compris la première résistance chauffante (11), sont prévues en un agencement spiroïdal à quatre spires ; et par le fait que les résistances chauffantes (11, 12, 13) sont de préférence enclenchables selon six paliers de puissance, en un branchement séparé, en série et en parallèle.
  12. Corps chauffant selon l'une des revendications 3 à 11, caractérisé par le fait que la première résistance chauffante (11) présente la puissance nominale maximale par rapport aux autres résistances chauffantes (12, 13) ; et par le fait que la première résistance chauffante (11) est notamment formée par un enroulement hélicoïdal en fil métallique, dont le fil métallique présente la plus forte section transversale et la plus grande longueur.
  13. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait qu'une résistance chauffante (11), en particulier la première résistance chauffante (11), est noyée uni formément dans le support (2) par une partie de son pourtour, pour l'essentiel sur toute sa longueur ; et par le fait que, de préférence, au moins une résistance chauffante est disposée à la face antérieure (7) du support (2).
  14. Corps chauffant selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une résistance chauffante (12, 13) est fixée, uniquement par intervalles, à un corps isolant (4) du support (2) et est prévue, pour le reste, de manière à s'étendre pour l'essentiel librement entre les zones de fixation ; par le fait que le corps isolant (4) présente des protubérances (39) du type nervures ou en forme de tétons qui sont notamment ménagées en saillie au-delà dudit corps, sont distantes les unes des autres dans le sens longitudinal de la résistance chauffante (12, 13), et dans lesquelles la résistance chauffante est noyée sur une partie de son pourtour ; et par le fait que, de préférence, les protubérances (39) dépassent au-delà du fond d'une gorge spiroïdale (37) et forment des discontinuités de cette gorge spiroïdale (37), qui présentent des sections transversales approximativement identiques à celle de la gorge spiroïdale (37).
EP88111883A 1987-08-18 1988-07-23 Radiateur électrique Expired - Lifetime EP0303854B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111883T ATE99485T1 (de) 1987-08-18 1988-07-23 Elektrischer heizkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8711209U 1987-08-18
DE8711209U DE8711209U1 (de) 1987-08-18 1987-08-18 Elektrischer Heizkörper

Publications (2)

Publication Number Publication Date
EP0303854A1 EP0303854A1 (fr) 1989-02-22
EP0303854B1 true EP0303854B1 (fr) 1993-12-29

Family

ID=6811174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111883A Expired - Lifetime EP0303854B1 (fr) 1987-08-18 1988-07-23 Radiateur électrique

Country Status (7)

Country Link
US (1) US4931621A (fr)
EP (1) EP0303854B1 (fr)
JP (1) JPS6465793A (fr)
AT (1) ATE99485T1 (fr)
DE (2) DE8711209U1 (fr)
ES (1) ES2047509T3 (fr)
YU (1) YU158488A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022292A1 (de) * 1990-07-15 1992-01-16 Ego Elektro Blanc & Fischer Elektrisches strahlungsheizelement
US5796075A (en) * 1992-03-09 1998-08-18 E.G.O. Elektro-Gerate Blanc Und Fisher Gmbh & Co. Kg Heater, particularly for kitchen appliances
DE4229375C2 (de) * 1992-09-03 2000-05-04 Ego Elektro Blanc & Fischer Strahlungs-Heizkörper
DE4320214A1 (de) * 1993-06-18 1994-12-22 Belzig Elektrowaerme Gmbh Anordnungen elektrischer Verbindungen und Elemente hierfür
DE19518109A1 (de) * 1995-05-17 1996-11-21 Ego Elektro Blanc & Fischer Strahlungs-Heizer
DE29600274U1 (de) * 1996-01-09 1997-05-07 Ako-Werke Gmbh & Co Kg, 88239 Wangen Heizelement
DE102006023719B4 (de) * 2006-05-19 2021-06-10 BSH Hausgeräte GmbH Heizkörper für eine Kochmulde
US20150265089A1 (en) * 2014-03-19 2015-09-24 Zoppas Industries de Mexico SA de CV Surface Unit for Heating
JP6219229B2 (ja) * 2014-05-19 2017-10-25 東京エレクトロン株式会社 ヒータ給電機構
WO2017117213A1 (fr) 2015-12-31 2017-07-06 Applied Materials, Inc. Dispositif de chauffage à haute température pour chambre de traitement

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1348648A (en) * 1916-10-23 1920-08-03 Sherman L Kelly Electric heating element and wiring therefor
GB447565A (en) * 1935-03-08 1936-05-21 Revo Electric Company Ltd Improvements relating to electric hot-plates
CH193572A (de) * 1937-01-21 1937-10-31 Salvis A G Elektrische Kochplatte.
US2494447A (en) * 1947-04-29 1950-01-10 Steatite Res Corp Heating grill
US3500018A (en) * 1966-08-01 1970-03-10 Teledyne Inc Electric heater apparatus
EP0103741B1 (fr) * 1982-09-16 1988-11-17 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique
DE3247028A1 (de) * 1982-12-18 1984-06-20 Ego Elektro Blanc & Fischer Temperaturregeleinrichtung fuer ein waermegeraet
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.
DE3417713A1 (de) * 1984-05-12 1985-11-14 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrokochplatte
DE3519350A1 (de) * 1985-05-30 1986-12-04 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Strahlungs-heizeinheit
EP0208823A1 (fr) * 1985-07-15 1987-01-21 Kanthal AB Résistance de chauffage électrique
DE3545443A1 (de) * 1985-12-20 1987-06-25 Bosch Siemens Hausgeraete Kochstellenheizelement
GB8601790D0 (en) * 1986-01-24 1986-02-26 Redring Electric Ltd Electric hobs & heating units
JPH024288U (fr) * 1988-06-20 1990-01-11

Also Published As

Publication number Publication date
ES2047509T3 (es) 1994-03-01
JPS6465793A (en) 1989-03-13
DE3886619D1 (de) 1994-02-10
YU158488A (en) 1991-02-28
DE8711209U1 (de) 1987-10-01
US4931621A (en) 1990-06-05
EP0303854A1 (fr) 1989-02-22
ATE99485T1 (de) 1994-01-15

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