EP0590315A2 - Elément chauffant, en particulier pour appareils de cuisine - Google Patents

Elément chauffant, en particulier pour appareils de cuisine Download PDF

Info

Publication number
EP0590315A2
EP0590315A2 EP93113723A EP93113723A EP0590315A2 EP 0590315 A2 EP0590315 A2 EP 0590315A2 EP 93113723 A EP93113723 A EP 93113723A EP 93113723 A EP93113723 A EP 93113723A EP 0590315 A2 EP0590315 A2 EP 0590315A2
Authority
EP
European Patent Office
Prior art keywords
longitudinal
components
sections
leg
section
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.)
Granted
Application number
EP93113723A
Other languages
German (de)
English (en)
Other versions
EP0590315A3 (fr
EP0590315B1 (fr
Inventor
Martin Gross
Werner Renz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6467106&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0590315(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0590315A2 publication Critical patent/EP0590315A2/fr
Publication of EP0590315A3 publication Critical patent/EP0590315A3/fr
Application granted granted Critical
Publication of EP0590315B1 publication Critical patent/EP0590315B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater

Definitions

  • the invention relates to a heater or similar devices which can have at least one elongated resistor, such as a heating resistor, a series resistor, a luminous resistor or the like.
  • Radiant heaters are preferably used for cooking devices for heating a hotplate, an oven muffle or other.
  • the radiant heater expediently forms a functional, self-contained, pre-assembled unit, which as a whole is connected to a corresponding device, e.g. B. a stove, a muffle wall or the like. To be attached.
  • another elongate component can also be provided, which in particular suitably influences the effect or the operation of the heater (for example the direction and distribution of the heat output).
  • This component can have one or more separate mounting sections, support legs or the like which are integrated with it by a one-piece design or the like. which is used to support one another, if necessary, with a single counter surface or opposite counter surfaces.
  • the support region of which can also be at a distance from an outer or peripheral edge surface, which is at least the 3-, 10-, 30- or 60- times the width of the edge surface, which can only be about 4/100 to 1/10 mm or less.
  • the support leg can be continuous over at least a quarter, a third or half of the length or essentially over the entire length of the component and thus e.g. form a strip-like edge zone of the component, the longitudinal edge of which forms the end vertex of the support leg.
  • successive support legs can also be provided at a distance.
  • the respective support leg is not made from a flat or film-like starting material by cutting or cutting along its edge boundary, but instead, for example by permanent bending deformation from a wire-like material, it can be designed in the form of a bow or part of a ring or as a section of a helix.
  • the cross-section of this starting material is not polygonal, e.g. rectangular or square, but circular or flat-oval or elliptical
  • the support area lies at a distance from the linear vertex of the edge boundary, which corresponds to at least the minimum or maximum cross-sectional thickness of the starting material, this distance is to be measured approximately at right angles to the edge boundary.
  • the support leg is advantageously flat insofar as its width or length is at least 2, 4 or 30 times greater than the material thickness mentioned.
  • the heater is expediently arranged in such a way that on its heating side at least one component or resistor is visible from the outside at least over part of its length if this heating side is not obscured or covered by a cooking vessel or the like.
  • the heater or the respective resistor is advantageous with a translucent cover, for. B. a glass ceramic plate shielded and thereby protected against direct contact.
  • the component can, however, also be provided with longitudinal sections or essentially completely recessed or embedded or encapsulated continuously over its length.
  • the strength is not only essential during operation, but also before and during assembly, because particularly high mechanical loads can occur here. It does not protect against these loads if, after inserting the support leg into its operating position, an end section is angled at a right angle for positive locking, because only then does the angle shape result in a certain stiffening. In this operating position, the non-prefabricated bend then forms, together with the transversely protruding end leg, the end apex at the free end of the support leg.
  • the so-called glow pattern of a resistor which can be perceived by the human eye and which is operated in the visible infrared radiation range depends on numerous factors, e.g. B. the intended electrical operating power, changes in cross section of the resistor, its thermal coupling or from the shape of the resistor insofar as this affects the current flow.
  • B. the intended electrical operating power
  • the heating resistor z. B. as in the case of DE-PS-25 51 137 formed as a meandering strip of flat material
  • there are power concentrations in the area of the protruding ends of the meandering cutouts there are power concentrations in the area of the protruding ends of the meandering cutouts. Therefore, projections which are provided opposite these projecting ends on the outer edges of the meandering projections have practically no visible influence on the glow pattern in such a case that this resistance would be operated in the
  • the invention is further based on the object of providing a radiant heater in which disadvantages of known designs or of the type described are avoided and which, in particular, ensures safe assembly connections for weakly dimensioned components or an effective influencing of the visible glow pattern with a simple design.
  • means are also provided in order to influence the strength of one or both side surfaces or support flanks of a weakly dimensioned component, for example by assigning a prefabricated profile to the respective support flank or the support area.
  • at least one side surface or support flank in a profile region lying at a distance from the end apex zone can be at least partially in an orientation that extends from a straight or curved longitudinal central axis of the Component deviates from right-angled and / or parallel alignment, the material cross section of the section having the support flank in the profile area deviating from a centrally symmetrical cross section in the state which this section assumes during operation.
  • the profile area can also be provided approximately parallel to the longitudinal direction mentioned and / or in at least one, two or more inclined positions with respect to this longitudinal direction, for example alternating directions.
  • a stirrup-shaped support leg in addition to a possible spiral pitch, it can also be bent one or more times transversely to the stirrup or incline plane in the area of at least one stirrup leg and / or the stirrup vertex, so that, for example, cross-sections of areas associated with the leg longitudinal direction against one another transversely to the mentioned Level are offset.
  • the profiling or the like can be used to create means for changing, in particular for increasing the stated strengths, in particular the dimensional rigidity.
  • the profiling can also form, for example, a spade-shaped channel or guide profile, which forms a pull-off protection through mutual, essentially full-surface frictional engagement in the mating surface, but ensures a form-fitting guide against lateral movement during assembly or the like.
  • the profiling can form a compensating profile for mechanical, thermal or similar stresses which can be stretched and / or compressed resiliently transversely to its longitudinal direction.
  • the profiling is suitable for large-area thermal coupling to the counter surface.
  • the profiling is essentially rigidly connected to the component in one to all directions or if it forms a continuation of a profile deformation of this component, it can they also significantly influence or increase the stated strengths of the component.
  • the profiling in its area can influence the heating effect, for example, by the fact that current flows through it in the manner of a parallel resistor or the like only over a part or the entire length of the leg, and thereby possibly increases or decreases the heating power in its area compared to adjacent longitudinal sections of the component .
  • the profile can also be provided in a cross section parallel to the longitudinal direction of the leg, but is expediently only provided in cross sections perpendicular to the longitudinal direction of the leg, in order to form a plug-in element in a simple manner, which can be pierced into a suitable material without prior preparation of a plug-in opening and thereby produces the plug-in opening which is precisely matched to it without play and which then closes it tightly at the open end or on the free surface of the material.
  • the profiling then expediently has mutually parallel sheath lines in all longitudinal sections parallel to the longitudinal or insertion direction on both opposite or complementary sides over the entire insertion depth or length, which in a straight line also over most of the height or the entire height of the component can be continued in a straight line.
  • the design according to the invention is also suitable for supporting the support leg only in the area of an edge surface or the end apex. It can furthermore, if necessary with a substantially flat outer shape, be formed by a two-layer or multi-layer design of the support leg, adjacent layers lying against one another over a large area or over the entire surface and / or being at a small distance from one another approximately in the order of magnitude of the material thickness.
  • the multilayer can, for example can be achieved in a simple manner by folding, wherein the respective folding edge can form the end apex and / or a lateral longitudinal edge of the support leg and leads to a thickening of the cross section.
  • the mounting section or the component is expediently first of all cut out of a flat or planar and not pre-profiled sheet material, such as a thin sheet, after which the profiles are produced and the component is therefore shortened in its effective length.
  • a single separating cut can simultaneously form two complementary edge surfaces of two components that are approximately mirror-symmetrical before the complete separation, which thus e.g. can be produced completely waste-free if a projection or support leg of a component corresponds in its outline shape exactly to that of the gap between two projections of the other component.
  • At least one profile of a component or support leg as a fine profile, in which the two profile legs starting from a profile apex, depending on the requirements, have a greatest distance from one another or a length of less than two up to less than half a millimeter apart. Between these values, the measure mentioned can vary in steps of one tenth of a millimeter. As a result, in the case of a band-shaped or strip-shaped resistor or the like, the effective length of the component or resistor material can be many times greater than the actual length of this component in the operating state, that is to say its installed length.
  • a resistor In the case of a resistor, this is particularly expedient if it is to be operated with a nominal voltage of more than 230 V, for example with about 400 V, because then by the corresponding increased surface area of the resistance whose specific thermal surface load can be reduced with the same power.
  • Two or more profiles of different fineness produced by permanent deformation can be superimposed on one another.
  • sections of a coarser undulating profile can be provided with a finer undulating profile in such a way that, for example, a solid shaft of the coarser profile contains 5, 10 or even 20 full waves of the finer profile.
  • the largest leg distance of a U- or V-shaped profile unit of the coarser profile can be of the order of magnitude of the height of the exposed resistance section, it is less than half, a quarter or a tenth of this height for the fine profile, the distance also being at least can correspond to 1, 3 or 5 to 10 or 20 times the material thickness of the fine profile.
  • Means for increasing the resistance value or for limiting the mainly resistance-active area can be formed continuously in only individual longitudinal sections and / or over the entire length of the resistor by openings which are continuous over the starting material cross section.
  • Such breakthroughs can be provided in the support leg or in the resistance-active main section of the component in one, two or more rows parallel to its longitudinal direction and influence the heating behavior of the heater in the associated section.
  • a plurality of openings can be distributed in a grid-like manner and closely spaced in a field, and a large number of such fields can be accommodated over the length of the component with larger spacings.
  • the support leg In the area of the respective opening, the support leg then forms a resistance-active area with only part of its leg length.
  • means or a method for adjusting the resistance value of a resistor are also proposed independently of the designs described.
  • the actual value of the resistance value is then recorded, compared with the target value, the actual value deviation is determined therefrom and, derived therefrom, the resistance is processed without changing the effective resistance length such that its resistance value is approximated or adjusted to the target value.
  • the processing is not carried out at the ends of the resistance strand, but in the distance between them through cross-section thickening and / or material removal, e.g. by producing the folds or openings mentioned. If such breakthroughs are provided in any case, their intermediate distances and / or sizes can be varied continuously in order to adjust the resistance value, as a result of which an extremely precise resistance adjustment is possible.
  • the removal of material can be computer or microprocessor controlled with a laser beam in the manner of the finest perforations.
  • the respective opening can have a width of less than 1 or 0.5 mm or of more than 1.5 or 2 mm.
  • the intermediate distances between adjacent openings can also be of the same order of magnitude.
  • a temperature sensor of a temperature limiter or the like which monitors the heating power or temperature of the heater, is provided in a region in which the at least the power or arrangement density of the temperature limiter or the like is provided Heating or the heating resistor is much lower than in the areas of highest density of this type.
  • the area mentioned can also be essentially completely free of radiation sections of the heating-effective component and / or other components or be formed only by the substantially flat surface of the insulating material or the carrier for the component.
  • This design is particularly expedient for a temperature sensor which does not extend over the entire width of the heating field, but only approximately up to its unheated central zone, in which the temperature sensor and the support can be supported against one another. With this design, the rod-shaped temperature sensor can be placed relatively close to the surface of the carrier in order to achieve a flatter design of the heater and, moreover, direct thermal reflections from the sensor on the component, which could damage this component, are avoided.
  • means are also provided by means of which one and the same resistor forms sections of such a size and such a spacing that an average human eye can clearly see brightness contrasts between these sections during power consumption, shortly after the start of the power supply and / or some time after the power supply has been interrupted can clearly see.
  • the respective section occupies a maximum bandwidth transversely to its longitudinal direction and the length of the respective lighter and / or darker section is expediently at least half as large, the same size or several times larger than this bandwidth, so that lighter and darker sections are clear connect differently.
  • the resistance can be designed so that the section provided for brighter lighting in the heating phase, ie at the beginning of the power supply in the cooled state, begins to glow in the center at a point and then this luminous point becomes increasingly in with this heating opposite longitudinal directions of the resistance to a luminous line is increased until this luminous line has reached its substantially constant luminous length when the operating temperature is reached and its ends are relatively sharp in contrast or with an abrupt decrease in brightness, each connecting to a darker longitudinal section.
  • the light line can be approximately linear or slightly curved, zigzag-shaped, wavy and / or similar in view of the position level of the resistor. While the resistance glows relatively brightly in the area of the luminous line, it glows weaker in the area of the darker section or not in the visible area, so that this darker section can be illuminated indirectly by the lighter section and the contrast is thereby made even clearer.
  • a single or multiple resistors in the area of a common field e.g. B. in interlocking or adjacent turns or with adjacent longitudinal areas that are longer than those grid areas, which are formed by the lighter and darker longitudinal sections.
  • successive lighter or darker longitudinal sections can have the same length or different lengths, can follow one another in a continuous line or can be offset from one another transversely to such a connecting line. They can also have the same or different intermediate distances, can be arranged within a limited or the entire resistance field in a uniform, regular or different distribution density and, in addition, visually illuminated sections can have clearly distinguishable brightness. This makes it possible to provide clearly distinguishable glow patterns depending on the respective setting or power status of the radiant heater, not only by eye control make a distinction as to which heating resistor or which heating resistors are in operation, but which form the different, rasterized display symbols.
  • the design according to the invention also makes it possible to significantly shorten the time between the start of the power supply and the first visible lighting, namely under ten or five seconds or even under four seconds.
  • the first tiny luminous dots can become visible just one second after the power supply is switched on and the luminous lines have reached their full length after three to four seconds.
  • an average of at least one or one and a half light or dark sections is expediently provided per cm2 heating surface, so that, for. B. in the case of a heating field with approximately 18 cm in diameter result in approximately 200 light and 200 dark sections.
  • the screening could also be increased significantly by increasing the number of contrasting sections up to a doubling or tripling.
  • the maximum operating temperature between light and dark sections differs by at least 5 to 10 or 50 ° C. or approximately 100 ° C. or if it is approximately 1000 to 1050 ° C. for the light sections or for the dark sections is about 950 to 1020 ° C, so that in one case this operating temperature is below 1000 or 1015 ° C and in the other case above.
  • the resistor is in contact with electrical or thermal insulation over its length at several points or in approximately uniform distribution, a direct heat-conducting coupling between the different materials of the resistor results at these points and insulation.
  • the insulation is far below its operating temperature z. B. cooled to room temperature, it can initially absorb heat at the points mentioned when the resistor is started, but this heat absorption has essentially ended when the insulation has reached its operating temperature of approximately 1000 ° C. This heat dissipation promotes the point-like start of lighting and the thermal characteristic of this heat dissipation promotes the spreading of the red dot to the illuminated line.
  • the respective resistor can also have projecting projections which are offset transversely to its longitudinal direction and which engage in a holder for the resistor, for. B. serve in said insulation.
  • These projections are expediently arranged and designed such that they essentially secure only by friction or non-positive engagement and not in a form-fitting manner.
  • the respective projection can be resiliently biased in one or two directions perpendicular to one another and transverse to the direction of insertion of the projection against corresponding mating surfaces of the holder, thereby increasing the frictional engagement.
  • the resistance adjacent to the respective protrusion can be extended in a resilient manner by stretching or shortened in a resilient manner by compression so that the entire protrusion engages in the insulation biased in the longitudinal direction of the resistance.
  • the respective projection is expedient, formed by one of the support legs described.
  • the resistance can also be curved so as to spring back to a narrower or a further curvature about an axis lying far outside its side surfaces, so that the respective projection is transverse to this property due to this property Longitudinal direction of resistance is pressed against the counter surfaces of the bracket.
  • the projection itself resilient for. B. be formed trough-shaped or in the manner of a section of a cone jacket and thereby form pliers-like spring legs, which are either diverging or converging resiliently pressed against associated mating surfaces of the holder.
  • the projection is connected in a suitable manner to a flat cross-section or the like, or is formed in one piece with it, this results in a curvature behavior of this strand-like overall component which is specifically different in the area of the respective projection than in areas in which no projection is provided. If such a strand is curved in the elastic region in a ring shape around an axis approximately parallel to the longitudinal direction of the projection, such as the z. B. is the case when transferring into spiral turns, the free end of the projection performs a slight tilting movement to the concave curvature side.
  • projections lie in different arc sections, they therefore also perform differently directed tilting movements and then lie slightly obliquely to the direction in which the resistance is inserted into the holder; this direction is z. B. at right angles to the heating level.
  • the different tilting positions of the projections then lead to an even better securing of the resistance to the holder.
  • the projections can coincide with the darker sections of the resistor, which is why the number and distribution density of what is explained above with reference to the light or dark sections can apply to them.
  • the respective protrusion expediently forms only a small part of its height in a region which is active in resistance or through which the current flows and through which the resistance value of the associated section of the resistor is reduced, that this appears as a dark section in the manner described.
  • the projection with an area of greatest cross-section expediently adjoins the associated longitudinal edge of the remaining resistor, the projection being tapered from this cross-section to its free end over part or all of its height.
  • the specific resistance values or power densities can also be selected approximately the same in the sections with and without projections or support legs, or they can be designed such that they do not differ with regard to the respective operating characteristics, which e.g. is defined by the resistance-effective cross section, the thermal storage capacity, the thermally conductive coupling, the larger of two cross-sectional dimensions lying at right angles to one another, the visible luminous brightness or the like.
  • adjacent, but differently formed or all sections in at least one of the above-mentioned operating states can form a line of essentially the same brightness without interruption, without a dashed pattern being produced.
  • the radiation heater 1 has an essentially dimensionally stable, multi-part and cup-shaped base body 2, the cup opening of which essentially forms the thermal output.
  • the largest material volume of the base body 2 forms an essentially two-part or three-part insulation 3 consisting of a supporting body 4 and an insulating body 5.
  • the supporting body 4 has, in particular, electrically insulating properties and forms the essentially flat and / or smooth bowl bottom which is exposed for thermal output .
  • the support body 4 is supported flat on an approximately plate-shaped insulating body 5, which have better thermal insulating properties than the support body 4 and can only rest on this in the edge and / or at least one ring area, so that a large area between the two bodies 4, 5 Gap gap exists.
  • the mechanical strengths, such as compressive, bending, tensile and / or shear strength of the insulating body 5 can be lower than those of the supporting body 4, and both are arranged in a socket 6 made of material with a higher strength, e.g. in a sheet metal shell, which secures the insulation 3 axially and / or radially essentially without play.
  • a ring-shaped continuous edge 8 which forms the cup opening and is made of insulating material which, according to FIG. 1, is formed in one piece with the supporting body 4 and consists of an insulating material which corresponds to that of the supporting body 4 and / or the insulating body 5 is similar.
  • This edge 8 the radial thickness of which is greater than that of the supporting body 4, is closely surrounded by a jacket-shaped edge 9 of the holder 6, which in the installed state is axially opposite the free end face of the Insulation 3 is set back, for example by an insulating ring placed on the edge 8.
  • resistors 10 are fastened in such a way that they are secured against movement parallel to the bottom 7 or their longitudinal direction or against lifting movements transversely from the bottom 7, essentially without play.
  • the resistors 10 are preferably distributed substantially uniformly over a field which approximately adjoins the inner circumference of the edge 8 over the entire circumference and extends to the center of the base 7.
  • Each resistor 10 has essentially exactly the same, approximately rectangular flat cross sections over the entire length of the exposed area in that it is made from a flat strip.
  • the flat band remains in the plastic area and is deformed by bending in the elastic area. It has two side surfaces 12, 13 with a parallel cross section and two very narrow edge surfaces 14, 15 connecting them. Its thickness 32 can e.g. B. about 0.07 mm and its largest cross-sectional width or width 28 z. B. about 4 to 8 mm, in particular 6 to 7 mm.
  • the respective band end of the resistor 10 can be formed directly and without additional intermediate elements as an electrical connection end 16. It can be brought into a position by bending or interlacing with respect to the rest of the resistor 10, in which it is contact-free with respect to the insulation 3 and is particularly well suited for the electrical connection.
  • connection end can also be formed directly by another non-deformed band end, as is the case if the band is cut off at any suitable point along its length only by a separating cut lying transversely to it.
  • the end of the band can be bent in an eyelet or fold shape and a transversely projecting connecting pin can be fastened between its fold legs, which, for. B. has the same flat rectangular cross-sections throughout its entire length.
  • the connection end is at least slightly freely movable transversely to the floor 7 and in all directions parallel to it, so that it can be aligned well with those counter-members to which it is to be connected for its electrical connection.
  • a one-piece continuous flat strip can also form two mutually adjacent, separately switchable resistors if these end at one end in one piece via a cross section and / or the cross section connecting these individual resistors is formed in one piece with a corresponding connection end.
  • the respective resistor 10 forms a fastening section 17 which is interrupted over most of its length or its entire length, in that it is in engagement with the support body 4 over this length in such a way that it opposes movements in the directions mentioned is secured.
  • an engagement section 18 adjoining an edge surface 14 with projections 28 is embedded in a correspondingly adapted manner in corresponding recesses 19 of the supporting body 4.
  • the flat cross section 11 continuously forms resistance-active cross sections between the two edge surfaces 14, 15, which are each enlarged by approximately 10% or less in the area of the projections 28.
  • the depth of engagement of the projections 28 or of the engagement section 18 can e.g. about 3 to 4 mm or about as much as or more than half of the associated total width 31, 34 of the flat strip.
  • the two side surfaces 12, 13 can rest in the area of the respective common longitudinal section or the projection at different heights on the insulating material of the support body 4 or at the same height, depending on which radiation conditions or thermal coupling effects are to be achieved.
  • the respective spiral section is elastically prestressed in an area by widening or narrowing, it rests under spring tension with the inner or outer side surface 13 or 12 of the respective projection, which form support surfaces.
  • the resistors 10 are located on the heating side 20 of the base 7 or the base body 2 facing the cup opening and, for example, with their edge surfaces 15 closer to the thermal output, determine a heating plane 21 approximately parallel to the base 7.
  • the heating element 1 has a central heating plane 21 perpendicular axis 22, around which the resistors 10 are curved.
  • each resistor 10 has a profile, namely a profile that changes in its longitudinal direction, for example a sinusoidal curve.
  • the resistor 10 is alternately provided with opposite, but essentially the same curvatures 23, and adjacent curvatures merge into one another with their approximately straight or flat legs 24.
  • the projections 28 and the depressions 19 are curved permanently or intrinsically stiff, the legs 24 diverge from the respective curvature 23, expediently at an angle of more than 30 °, 60 ° or 90 °.
  • thermal elongations of the resistor are transmitted to the supporting body 4 in a relatively unproblematic manner.
  • the corrugation is essentially produced by bending in the plastic area, but allows additional elastic deformations z. B. to produce the large curvature, to lengthen or shorten the resistance and to bend the resistance across the heating plane 21 in order to adapt the resistance in each area to the shape of the bottom 7.
  • the measure of leadership e.g. about the sheet thickness of the socket 6 can be so great that there is only a gap distance between the back of the cover plate 26 and the edge 9.
  • the edge 9 cannot come into direct contact with the cover plate 26, but the gap distance can at most be reduced to a minimum of e.g. Reduce 1 mm or the like.
  • the heating plane 21 is set back at a distance from the end face 25 or the cover plate 26.
  • the respective heating resistor or separate heating resistors can protrude differently over the floor 7 to the heating side 20, engage at different depths in the supporting body 4, have different bandwidths, different projections and / or different strip thicknesses, thereby creating areas of the heating field with different power densities or different responsiveness of the heating effect and the glowing can.
  • the projections 28 are expediently included in the corrugation in such a way that the respective projection, at least in the transition to the edge surface 14, over most of its height and up to close to its free end, has the same wave curvatures as the associated remaining section of the flat cross section 11. Since the projection 28 ends at its free end in a sharp or rounded tip 37 or in an end apex, this can be free of such curvatures in some or all of the projections.
  • the respective projection is expediently approximately triangular in an acute angle, its greatest extent in the longitudinal direction of the resistor 10 being approximately as large as a solid wave of the corrugation or, in contrast, only slightly smaller. As a result, the projection extends here over one or two curvatures 23 and over one or two legs 24. Compared to this extension, the clear distance between successive projections is expediently greater.
  • the corrugation can also have a shape similar to trapezoidal teeth, so that the sections 23, which are approximately parallel to the longitudinal direction of the resistor 10, are approximately flat and pass into the legs 24 via relatively small radii of curvature. Successively, smaller and larger radii of curvature can alternately be provided, so that the corrugation is in a simple manner in the passage can be made uniform between two gears meshing with symmetrical teeth over the entire length of the resistor.
  • the respective one in view of the heating side 20 can be approximately completely congruent with the rest of the flat cross section 11 of the heating resistor 10 or over its respective side surface at most about 1 or 2 times its material thickness 32 z.
  • the fastening projection 28 engages completely sunk into the support body 4, which can also be formed in one piece down to the bottom of the socket 6, so that no two superimposed insulating layers are required to form the insulation 3.
  • the edge surface 14 of the resistive flat cross section 11, which is approximately at right angles to the heating plane 21, can at least partially also engage in the support body 4 in a slightly recessed manner. However, the edge surface 14 can also at least partially bear directly on the flat surface of the base 7 or at least partially have a gap distance from this surface.
  • the projections 28 are distributed approximately uniformly throughout the length of the resistor 10 in the manner of a toothing.
  • the respective fastening projection 28 expediently has a larger overall width 33, which in turn can be greater than its height 34.
  • This height 34 can be of the order of the cross-sectional width 31 or, on the other hand, can be larger.
  • the fastening projections 28 are a side view through their lateral edge boundaries or outer edges right-angled to acute-angled, so that a corresponding tip 37 is formed at the free end as an insertion tip for insertion into the dry prefabricated or still moist-formable support body 4.
  • the resistor 10 Before being pressed in, the resistor 10 can be stretched or shortened elastically at least in sections against its spring force, after which it is pressed into the supporting body 4 in this state. After the release of the length-changing force, the respective longitudinal section springs back and is accordingly in tension on the supporting body 4, so that the resistance against lifting off the floor 7 is then secured very frictionally.
  • the projections 28 are expediently including their tips 37 completely within the support body 4, although the tips could also extend into the insulating body 5.
  • each projection 28 or its tip 27 occupies a different position with respect to the central longitudinal plane 30 of the resistor 10 and likewise essentially each projection 28 has a different shape in cross section according to FIG. B. three to five angularly adjoining leg sections. This results in a very favorable clawing of the resistance in relation to the supporting body 4.
  • the fastening projections 28 are delimited in an arc or approximately semicircular shape. It can be seen here how the edge surface 14 following the foot sections 36 of the projections 28 a gap distance from the free surface of the Bottom 7 may have, this gap distance is significantly smaller than the dimensions 31, 34 or may be in the order of the material thickness of the resistor.
  • the free end of the respective fastening projection 28 can also z. B. exposed in that it engages in a recess or recess of the insulating body 5, possibly without contact.
  • Fig. 7 shows an embodiment with differently shaped fastening projections 28, namely a not part-circle, but approximately part-elliptical projection and with a triangular projection with a rounded tip 37, the round projection 28 on the right in Fig. 7 has a widely used foot portion 36, so that the effective resistance of the flat cross section 11 is correspondingly reduced over its length.
  • the longitudinal sections 38 between the projections 28 shine brighter than and / or in front of the shorter longitudinal sections 39 occupied by the projections 28, since at least the root or foot section 36 is at a low height in the conductor cross section through which the current flows included and the electrical resistance value is accordingly reduced here. Since, when the still cool resistor 10 is started up, the longitudinal sections 39 and the support body 4 are not or not significantly heated above room temperature or are at a temperature some 100 ° C. below the operating temperature, they can first of all be relatively high from the longitudinal sections 38 absorb a lot of heat through heat conduction.
  • the longitudinal sections 38 initially begin to glow in a visible manner approximately in the middle between the longitudinal sections 39, which are adjacent on both sides, and thereby the subsequent ones in the longitudinal direction Zones to be heated until the glow point has spread to a glow line approximately adjacent to the adjacent projections 28.
  • the projections 28 or the longitudinal sections 39 and the zones of the support body 4 lying in their area have reached their operating temperature at which they can practically no longer absorb or dissipate heat from the longitudinal sections 38.
  • the longitudinal sections 39 appear dark, although they also emit heating radiation in a longer-wave region of the infrared radiation to the thermal output of the radiation heater.
  • the light lines are wavy in the manner described, successive light waves, as described with reference to the wave shape of the projections 28, have different shapes.
  • the respective longitudinal section 38 cools down substantially uniformly over its entire length, so that it loses its luminosity accordingly uniformly.
  • the component 10 has a profile 40 of the type described within the width 33 of the support leg 28, which is either only outside the possibly flat support leg 28, namely between the edge surfaces 14, 15, is provided only in the area of the support leg 28 with a substantially flat design between the edge surfaces 14, 15 or both between these edge surfaces 14, 15 and in the area of the support leg 28. If the respective lateral edge delimitation 41 of the support leg 28 is provided with an incision, a recess or the like, the profile 40 of the support leg 28 can deviate from that between the edge surfaces 14, 15.
  • the support leg 28 forms in longitudinal view through each incision an edge limb or edge strip which has the associated edge limitation 41 and which can be bent transversely to its surface outwards or inwards such that it forms a profile which is wider or narrower than the rest of the profile.
  • Incisions can e.g. be provided in the foot region 36 or in the extension of the edge surface 14 from both lateral edge boundaries 41 over less than half the width 33 and / or at a distance therefrom and at a distance from the end apex 37. Incisions lying opposite one another can be aligned with one another or offset in the direction of the length 34.
  • the profiling 40 is expediently assigned to the support leg 28 in such a way that its strength, the strength of its connection with the other component 10 and / or the strength of this other component 10 in the region of the cross-sectional width 31 changes, in particular is increased.
  • the respective incision is advantageously made as a waste-free separating or punching cut.
  • its support flanks 43, 44 in the longitudinal view of the support leg 28 can lie at least partially outside the side surfaces 12, 13 of the remaining component 10.
  • Both support flanks 43, 44 or the respective edge limitation 41 can be spaced apart from a side surface 12 or 13. In the region of the end apex 37, however, the support flanks 43, 44 are expediently approximately congruent with the side surfaces 12, 13.
  • the distance between the longitudinal center planes 42 of adjacent support legs 28 can also be substantially the same as the pitch 29 or the length of a solid shaft or a profile unit. Then successive longitudinal center planes 42 coincide with symmetry or center planes of these profile units and each support leg 28 is approximately that same profile 40 assigned. Instead of 1 times the dimension 29, the distance can also be 2, 3 or more times this dimension 29.
  • the total width or total width 31, 34 of the component 10 is essentially constant over the largest part of its length, or in this area the edge surface facing away from the edge surface 15 is straight.
  • This edge surface is formed by the end apex 37 of a single support leg 28, which in turn forms a continuous edge strip of the component 10.
  • incisions of the type described can be provided in a division corresponding to the division 29 or 35, which transversely or at right angles from the end apex 37 and in the foot region of the support leg 28 merge into only one or more cross sections, so that they e.g. Are T-shaped.
  • the profiling of the support leg 28 can in turn be changed compared to that of the remaining area of the component 10.
  • means 45 are provided for changing the working or heating behavior, by means of which both the mechanical behavior of the component 10 during its shaping, assembly and under thermal changes in length and the resistance of the respective longitudinal section can be influenced or changed .
  • openings 46 or holes of approximately the same size are provided in the support leg 28, which can each be arranged in a grid-like manner in a field 47.
  • Fields 47 which follow one another in the longitudinal direction of the component 10 are each at a distance from one another which is greater than the intermediate distance between openings 46 within the field 47 or at least approximately as large as the extent of a field 47 in the longitudinal direction of the component 10.
  • the openings 46 are in two in the longitudinal direction of the component 10 parallel rows are provided, whereby the row of each field 47 closer to or immediately adjacent to the end apex 37 can have at least one opening less than the row further away.
  • the respective field 47 which can also be formed by a single opening, is widened to the edge surface 15.
  • the means 45 can also be formed by the cuts 48, 49 mentioned. If such an incision 48 is provided at a distance approximately in the middle between adjacent fields 47 or in the middle of such a field 47, then it is expediently T-shaped. If the two strips cut free by the incision 48 are bent out to the same side or on opposite sides from the surface of the remaining flat cross section, their electrical line connection is disconnected and the resistance of the component 10 increases in their area.
  • the incision 49 is formed by two parallel transverse incisions starting from the end apex 37 or the edge surface 14, each of which merges into a longitudinal incision approximately parallel to the longitudinal direction of the component 10, wherein these longitudinal incisions can be directed towards and / or away from one another. 8, the transverse and longitudinal cuts each enforce the limitation of an outermost opening 46 of the associated field 47.
  • a transverse incision or a T-shaped incision could also originate from the end apex 37 of a support leg 28 designed as a projection.
  • the respective field 47 changes, in particular increases, the electrical resistance of the component 10 in its area, the increase in resistance being able to be adapted by the respective incision 48 such that the resistance in its area is approximately the same as in the area of the field 47, so that contiguous Longitudinal sections 38, 39 shine approximately equally brightly in at least one of the named operating states.
  • the openings 46 or incisions 48, 49 are expediently essentially completely covered by the counter surfaces 19 formed by the recess of the support body 4, so that the material of the support body 4 can engage in the openings 46 or the cut edge surfaces.
  • the openings 46 are provided in a single row approximately parallel to the edge surfaces 14, 15 and at a distance approximately in the middle between these edge surfaces 14, 15.
  • the support legs 28 themselves are not provided with openings, but openings also lie in those longitudinal sections 39 which have the projections 28.
  • the row with openings 46 having approximately the same spacing extends over most of the length of the component 10 or over its entire length.
  • the slightest changes in the spacing or sizes of the openings 46 make it possible to change the resistance value of the entire component 10 continuously, namely by increasing the spacing or reducing the openings or increasing the spacing and enlarging the openings 46.
  • the projections 28 here are approximately trapezoidal in view of their side surfaces, so that there is a line-shaped apex edge 37 approximately parallel to the edge surface 14, 15, the length of which may be greater or smaller than the dimension 31 or 34, depending on the requirements.
  • the openings 46 are again provided in line fields 47, which are only in the longitudinal sections 38 and have intermediate distances from one another which correspond to the length of the longitudinal sections 39.
  • the openings 46 lie freely outside the supporting body 4 in the bright-glowing region 31 of the component 10.
  • the component 10 according to FIG. 11 is designed similarly to that according to FIG. 8, but the support leg 28 has two or more longitudinal rows of openings 46, the openings 46 of one row in the longitudinal direction of the component 10 being approximately half of their intermediate distance from the Breakthroughs in the other longitudinal row are offset. In the case of FIG. 9, these longitudinal rows can run essentially uniformly over the entire length of the component 10. No openings are provided in the area 31, but its resistance value can be changed in the manner described by means of the openings 46, because the area or support leg 28 which has the openings 46 forms a parallel resistance of the area 31 and has a significantly higher resistance value than the area 31 .
  • the component 10 has a fine profile 50, which is also conceivable without a profile 40 on a component 10 which is curved only with a slight curvature corresponding to its curvature about the central axis of the heating field without permanent deformation and / or approximately linear longitudinal sections has, which merge into one another via oppositely directed curves of curvature.
  • the fine profiling 50 is superimposed on the profiling 40, whereby it can be produced simultaneously with the profiling 40 or in front of it.
  • the fine profiling 50 is essentially uniform or wave-shaped, its division 51 being substantially smaller than the corresponding division 29 of the profiling 40.
  • the profile width 53 of the fine profile 50 to be measured transversely to the central plane 30 is also substantially smaller than the corresponding profile width 52 of the profile 40, but is several times greater than the material thickness 32.
  • the profile width 53 with a material thickness 32 between half a tenth and a tenth of a millimeter and a profile width 52 between two and four millimeters can be less than two millimeters and be about half to one millimeter.
  • the fine division 51 which can be approximately the same size as the profile width 53 or, in contrast, up to about half smaller.
  • FIG. 13 shows two different fine profiles 50 on the left and right, which can be provided in successive longitudinal sections of a single component or on separate components.
  • the component 10 is provided with successive, opposite folds 54 of the starting material, each of which forms three-layer sections 55, which are connected to one another via a single-layer intermediate section.
  • the fine profiling 50 can only be provided in section 31 or only in section 34 and in both sections 31, 34 of the cross section of the component 10. Breakthroughs according to FIGS. 8 to 11 can also be provided in the fine profiling 50.
  • an unheated central zone 56, free of the resistor 10, is provided approximately in the center or symmetrical to the central axis of the heating field, the width of which is less than half or a quarter of the width of the heating field and in which a over the floor to the heating side protruding annular projection 57 made of the insulating material the bottom 7 is provided.
  • the radiator 1 is provided with a temperature limiter 58, the base 59 of which receives the electrical circuits is located on the outside of the radiator 1 or on the edge 9 (not shown in FIG. 14) in such a way that it cannot abut the cover plate 26.
  • a rod-shaped temperature sensor 61 protrudes freely from the base 59, which penetrates the edges 8, 9 in substantially closely matched openings and extends approximately radially to the heating field.
  • the temperature sensor 61 can be formed, for example, from a metal-exposed outer tube and an inner rod therein with different coefficients of thermal expansion, the outer tube being attached essentially rigidly to the base 59, while the inner rod actuates a contact located in the base 59.
  • the free end of the temperature sensor 61 only extends approximately into the region of the central zone 56 and can cover opposite circumferential regions of the projection 57 or rest against it under slight prestress.
  • the resistor 10 forms curvature sections which are curved, concentrically one inside the other, about the central axis of the heating field and which extend over an arc angle of somewhat less than 360 °, but which continuously pass through on the side of the heating field opposite the free end of the temperature sensor 61.
  • two immediately adjacent curvature sections merge in one piece via a small curve, so that these Curvatures on at least one side of the temperature sensor 61 form the lateral flank boundaries of the gap 60.
  • a connection section 16 can be guided approximately parallel to the temperature sensor 61 to the innermost curvature section of the resistor 10 and on this side form the flank of the gap 60, from which the associated curvature arcs are at a distance.
  • the base 59 is so resiliently attached to the base body 2 or at the bottom of the socket 6 with a support arm that the temperature sensor 61 can perform small evasive movements resiliently at least with respect to parts of the base body 2 with the base 59 transversely to the heating plane.
  • All described designs, components, units or rooms can only be provided once or in a plurality of two or more, for. B. to be able to switch several power levels.
  • this distance can also correspond to at least up to twelve times approximately any integer multiple of this width, depending on which effects are to be achieved .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of Resistance Heating (AREA)
  • Cookers (AREA)
  • Surface Heating Bodies (AREA)
EP93113723A 1992-09-03 1993-08-27 Elément chauffant, en particulier pour appareils de cuisine Expired - Lifetime EP0590315B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4229375 1992-09-03
DE4229375A DE4229375C2 (de) 1992-09-03 1992-09-03 Strahlungs-Heizkörper

Publications (3)

Publication Number Publication Date
EP0590315A2 true EP0590315A2 (fr) 1994-04-06
EP0590315A3 EP0590315A3 (fr) 1994-12-28
EP0590315B1 EP0590315B1 (fr) 2001-12-19

Family

ID=6467106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113723A Expired - Lifetime EP0590315B1 (fr) 1992-09-03 1993-08-27 Elément chauffant, en particulier pour appareils de cuisine

Country Status (12)

Country Link
US (1) US5498853A (fr)
EP (1) EP0590315B1 (fr)
JP (2) JP3458904B2 (fr)
CN (1) CN1130953C (fr)
AT (1) ATE211348T1 (fr)
AU (2) AU667563B2 (fr)
DE (2) DE4229375C2 (fr)
ES (1) ES2170061T3 (fr)
SI (1) SI9300457B (fr)
TR (1) TR27591A (fr)
TW (1) TW321820B (fr)
ZA (1) ZA936467B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290688A (en) * 1994-06-24 1996-01-03 Ceramaspeed Ltd Conductive strip heating element
DE19856669A1 (de) * 1998-12-09 2000-06-15 Ego Elektro Geraetebau Gmbh Heizkörper, insbesondere für Küchengeräte
US6184502B1 (en) 1997-12-11 2001-02-06 E.G.O. Elektro-Geratebau Gmbh Heater, particularly for kitchen appliances
DE10307246A1 (de) * 2003-02-17 2004-08-26 E.G.O. Elektrogerätebau GmbH Heizungseinrichtung mit zwei Bereichen
DE102004024044A1 (de) * 2004-05-07 2005-11-24 E.G.O. Elektro-Gerätebau GmbH Elektrischer Heizleiter aus Keramik und Verfahren zu seiner Herstellung sowie Heizeinrichtung
EP1750484A1 (fr) 2005-08-01 2007-02-07 Electrovac AG Ruban chauffant pour appareil de chauffage électrique, appareil de chauffage avec un tel ruban chauffant et procédé de fabrication du ruban chauffant
DE102012002163A1 (de) 2012-01-31 2013-08-01 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung, Verwendung einer solchen Heizeinrichtung und Verfahren zur Herstellung
DE202013007643U1 (de) 2013-08-21 2013-09-05 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung für eine Kochstelle in einem Kochfeld und Kochfeld
DE102013216290A1 (de) 2013-08-16 2015-02-19 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
EP3883339A1 (fr) 2020-03-20 2021-09-22 E.G.O. Elektro-Gerätebau GmbH Dispositif chauffant rayonnant pour un dispositif de cuisson et dispositif de cuisson
DE102021202314A1 (de) 2021-03-10 2022-09-15 E.G.O. Elektro-Gerätebau GmbH Leistungssteuergerät und Anordnung eines solchen Leistungssteuergeräts mit einer elektrischen Heizeinrichtung
DE102022200226A1 (de) 2022-01-12 2023-07-13 E.G.O. Elektro-Gerätebau GmbH Strahlungsheizeinrichtung für ein Kochfeld und Verfahren zur Herstellung einer Strahlungsheizeinrichtung

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438648A1 (de) * 1994-10-28 1996-05-02 Ego Elektro Blanc & Fischer Strahlungsheizkörper
DE19500448A1 (de) * 1995-01-10 1996-07-11 Ego Elektro Blanc & Fischer Heizeinheit
DE19506685A1 (de) * 1995-02-25 1996-08-29 Ego Elektro Blanc & Fischer Elektrischer Strahlungsheizkörper und Verfahren zu seiner Herstellung
DE19518109A1 (de) * 1995-05-17 1996-11-21 Ego Elektro Blanc & Fischer Strahlungs-Heizer
DE19527823A1 (de) 1995-07-29 1997-01-30 Ego Elektro Blanc & Fischer Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen
US5961866A (en) * 1996-03-27 1999-10-05 Alto-Shaam, Inc. Food heating unit
US5837975A (en) * 1996-07-29 1998-11-17 Emerson Electric Co. Corrugated strip, radiant heater element
DE19638640C2 (de) * 1996-09-21 2000-11-30 Diehl Ako Stiftung Gmbh & Co Strahlungsheizkörper mit einem Metallfolien-Heizleiter
CZ169298A3 (cs) * 1997-07-15 1999-02-17 Ako-Werke Gmbh & Co. Kg Topný vodič pro sálavé topné těleso kuchyňského vařiče
GB2332844A (en) * 1997-12-29 1999-06-30 Jonathan Patrick Leech Infra-red heaters and elements therefor
US6544583B2 (en) * 2000-02-01 2003-04-08 Trebor International, Inc. Method for adjusting resistivity of a film heater
US7081602B1 (en) 2000-02-01 2006-07-25 Trebor International, Inc. Fail-safe, resistive-film, immersion heater
US6580061B2 (en) 2000-02-01 2003-06-17 Trebor International Inc Durable, non-reactive, resistive-film heater
US6663914B2 (en) 2000-02-01 2003-12-16 Trebor International Method for adhering a resistive coating to a substrate
US6674053B2 (en) 2001-06-14 2004-01-06 Trebor International Electrical, thin film termination
DE10129175A1 (de) * 2001-06-12 2003-01-09 Ego Elektro Geraetebau Gmbh Elektrischer Strahlungsheizkörper mit einem Sensor zur Kochgefäßerkennung
GB0301168D0 (en) * 2003-01-18 2003-02-19 Ceramaspeed Ltd Radiant electric heater
GB0316627D0 (en) * 2003-07-16 2003-08-20 Ceramaspeed Ltd Radiant electric heater
JP4693429B2 (ja) * 2004-06-28 2011-06-01 京セラ株式会社 ヒータ及びそれを用いたウェハ加熱用ヒータならびにウェハ加熱装置
AT413622B (de) * 2003-10-28 2006-04-15 Electrovac Heizelement für elektrische heizplatten sowie verfahren zur herstellung eines heizelements
US7180038B2 (en) * 2004-08-03 2007-02-20 E.G.O. Elektro-Geraetebau Gmbh Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device
US7145109B2 (en) * 2004-08-03 2006-12-05 E.G.O. Elektro-Geraerebau Gmbh Appliance for switching on and off several heating devices of a cooker, as well as cooker having such an appliance
DE102005025207B4 (de) * 2005-05-25 2015-07-23 E.G.O. Elektro-Gerätebau GmbH Wärmedämmung für eine Strahlungsheizeinrichtung, Strahlungsheizeinrichtung und Elektro-Haushaltsgerät
DE102007021939A1 (de) * 2007-05-10 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Kochfeld
TW201102513A (en) * 2009-07-03 2011-01-16 Five Eight Eight Entpr Corp Pump with constant-temperature output
EP2626638B1 (fr) 2010-10-05 2018-08-01 Shibaura Electronics Co., Ltd. Dispositif de cuisson
US8933377B2 (en) 2011-12-09 2015-01-13 E.G.O. Elektro-Gerätebau GmbH Control device for an electrical heating device for a cooking field, cooking field and method for operating such an electrical heating device
US20130146582A1 (en) * 2011-12-09 2013-06-13 E.G.O. Elektro-Gerätebau GmbH Heating Device, Cooking Field and Method for Operating a Heating Device
US8884195B2 (en) 2011-12-09 2014-11-11 E.G.O. Elektro-Gerätebau GmbH Heating device, method of producing a heating device and method for operating a heating device
US9078449B2 (en) * 2012-07-24 2015-07-14 General Electric Company Cook top grate as utensil size/presence detector
DE102013207831A1 (de) 2013-04-29 2014-06-18 E.G.O. Elektro-Gerätebau GmbH Strahlungsheizeinrichtung für ein Kochgerät und Kochgerät
CN103313447A (zh) * 2013-05-29 2013-09-18 朱建新 蛇形复合炉丝及加工方法
DE102013214260A1 (de) 2013-07-22 2014-10-09 E.G.O. Elektro-Gerätebau GmbH Strahlungsheizeinrichtung
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
US20160227609A1 (en) * 2015-01-30 2016-08-04 Schott Corporation Multi function glass or glass-ceramic cooktop system and method of cooking thereon
DE102017222958A1 (de) * 2017-09-04 2019-03-07 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zur Herstellung einer Heizeinrichtung
PL3451791T3 (pl) 2017-09-04 2020-11-16 E.G.O. Elektro-Gerätebau GmbH Urządzenie grzewcze i sposób wytwarzania urządzenia grzewczego
DE102018218245A1 (de) 2018-10-24 2020-04-30 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Elektrokochgerät
DE102019216020A1 (de) * 2019-10-17 2021-04-22 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb einer Strahlungsheizeinrichtung und Kombination einer Strahlungsheizeinrichtung mit einer Drehschalteinrichtung
DE102020201610B3 (de) 2020-02-10 2021-05-12 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Ansteuerung einer Heizeinrichtung eines Kochfelds und Kochfeld
US11570853B2 (en) 2021-02-01 2023-01-31 E.G.O. Elektro-Geraetebau Gmbh Method for actuating a heating device of a hob, and hob

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US600057A (en) * 1898-03-01 Rheostat and electric heater
GB372813A (en) * 1931-02-07 1932-05-09 Charles Cecil Turner Improvements in or relating to electric heating elements
US2570975A (en) * 1946-07-27 1951-10-09 Mcgraw Electric Co Electric heating element
DE1962568A1 (de) * 1968-12-16 1970-08-27 Zentral Lab Elektrogeraete Veb Elektrisch beheizte Kochplatte
DE2033374A1 (de) * 1970-02-27 1971-09-09 Elektrogeraete Suhl Veb Elektrisch beheizte Kochplatte
US3612828A (en) * 1970-06-22 1971-10-12 Gen Motors Corp Infrared radiant open coil heating unit with reflective fibrous-ceramic heater block
US3991298A (en) * 1975-07-28 1976-11-09 Gould Inc. Heating unit for a ceramic top electric range

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1962568A (en) * 1930-11-22 1934-06-12 Mckenney George Francis Wall construction
US2896004A (en) * 1956-03-05 1959-07-21 Lindberg Eng Co Electric heating furnace and method of heating
US3345498A (en) * 1965-02-01 1967-10-03 Gen Motors Corp Infrared surface heating unit
US3348025A (en) * 1965-06-24 1967-10-17 Gen Motors Corp Spider supported electric heater
US3567906A (en) * 1969-04-14 1971-03-02 Gen Electric Planar surface heater with integral fasteners for heating element
US3912905A (en) * 1974-02-25 1975-10-14 Kanthal Corp Electric resistance heating device
US3984615A (en) * 1975-10-14 1976-10-05 Btu Engineering Corporation Electrical resistance furnace heater
DE2551137C2 (de) * 1975-11-14 1986-04-24 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrischer Strahlungsheizkörper für Glaskeramikkochplatten
US4292504A (en) * 1979-10-02 1981-09-29 Tutco, Inc. Expanded metal electric heating element with edge support
DE3129239A1 (de) * 1981-07-24 1983-02-10 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrischer heizkoerper fuer die beheizung einer platte und verfahren zu seiner herstellung
DE3519350A1 (de) * 1985-05-30 1986-12-04 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Strahlungs-heizeinheit
DE3527413A1 (de) * 1985-07-31 1987-02-12 Ego Elektro Blanc & Fischer Elektrischer strahlheizkoerper zur beheizung von heizflaechen sowie verfahren und vorrichtung zu seiner herstellung
DE3622415A1 (de) * 1986-07-03 1988-01-07 Ego Elektro Blanc & Fischer Strahlheizkoerper
GB8625556D0 (en) * 1986-10-25 1986-11-26 Micropore International Ltd Radiant heaters
DE8711209U1 (fr) * 1987-08-18 1987-10-01 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
US4831240A (en) * 1987-10-08 1989-05-16 Hester Industries, Inc. Electrical high current industrial oven or fryer compression connection

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US600057A (en) * 1898-03-01 Rheostat and electric heater
GB372813A (en) * 1931-02-07 1932-05-09 Charles Cecil Turner Improvements in or relating to electric heating elements
US2570975A (en) * 1946-07-27 1951-10-09 Mcgraw Electric Co Electric heating element
DE1962568A1 (de) * 1968-12-16 1970-08-27 Zentral Lab Elektrogeraete Veb Elektrisch beheizte Kochplatte
DE2033374A1 (de) * 1970-02-27 1971-09-09 Elektrogeraete Suhl Veb Elektrisch beheizte Kochplatte
US3612828A (en) * 1970-06-22 1971-10-12 Gen Motors Corp Infrared radiant open coil heating unit with reflective fibrous-ceramic heater block
US3991298A (en) * 1975-07-28 1976-11-09 Gould Inc. Heating unit for a ceramic top electric range

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290688A (en) * 1994-06-24 1996-01-03 Ceramaspeed Ltd Conductive strip heating element
US6184502B1 (en) 1997-12-11 2001-02-06 E.G.O. Elektro-Geratebau Gmbh Heater, particularly for kitchen appliances
DE19856669A1 (de) * 1998-12-09 2000-06-15 Ego Elektro Geraetebau Gmbh Heizkörper, insbesondere für Küchengeräte
DE10307246A1 (de) * 2003-02-17 2004-08-26 E.G.O. Elektrogerätebau GmbH Heizungseinrichtung mit zwei Bereichen
US7053340B2 (en) 2003-02-17 2006-05-30 E.G.O. Elektro-Geraetebau Gmbh Heating device with two areas
DE102004024044A1 (de) * 2004-05-07 2005-11-24 E.G.O. Elektro-Gerätebau GmbH Elektrischer Heizleiter aus Keramik und Verfahren zu seiner Herstellung sowie Heizeinrichtung
EP1750484A1 (fr) 2005-08-01 2007-02-07 Electrovac AG Ruban chauffant pour appareil de chauffage électrique, appareil de chauffage avec un tel ruban chauffant et procédé de fabrication du ruban chauffant
WO2013113703A1 (fr) 2012-01-31 2013-08-08 E.G.O. Elektro-Gerätebau GmbH Dispositif de chauffage, utilisation d'un tel dispositif de chauffage et son procédé de fabrication
DE102012002163A1 (de) 2012-01-31 2013-08-01 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung, Verwendung einer solchen Heizeinrichtung und Verfahren zur Herstellung
DE102013216290A1 (de) 2013-08-16 2015-02-19 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
EP2844029A1 (fr) 2013-08-16 2015-03-04 E.G.O. Elektro-Gerätebau GmbH Dispositif de chauffage et son procédé de fonctionnement
DE102013216290B4 (de) * 2013-08-16 2015-09-03 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
DE202013007643U1 (de) 2013-08-21 2013-09-05 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung für eine Kochstelle in einem Kochfeld und Kochfeld
EP3883339A1 (fr) 2020-03-20 2021-09-22 E.G.O. Elektro-Gerätebau GmbH Dispositif chauffant rayonnant pour un dispositif de cuisson et dispositif de cuisson
DE102021202314A1 (de) 2021-03-10 2022-09-15 E.G.O. Elektro-Gerätebau GmbH Leistungssteuergerät und Anordnung eines solchen Leistungssteuergeräts mit einer elektrischen Heizeinrichtung
WO2022189541A2 (fr) 2021-03-10 2022-09-15 E.G.O. Elektro-Gerätebau GmbH Appareil de commande de puissance et agencement d'un tel appareil de commande de puissance équipé d'un dispositif de chauffage électrique
DE102022200226A1 (de) 2022-01-12 2023-07-13 E.G.O. Elektro-Gerätebau GmbH Strahlungsheizeinrichtung für ein Kochfeld und Verfahren zur Herstellung einer Strahlungsheizeinrichtung

Also Published As

Publication number Publication date
AU667563B2 (en) 1996-03-28
JP3458904B2 (ja) 2003-10-20
US5498853A (en) 1996-03-12
CN1091581A (zh) 1994-08-31
ZA936467B (en) 1994-03-22
AU692708B2 (en) 1998-06-11
TR27591A (tr) 1995-06-13
DE4229375C2 (de) 2000-05-04
TW321820B (fr) 1997-12-01
ES2170061T3 (es) 2002-08-01
JP2003303663A (ja) 2003-10-24
AU5616696A (en) 1996-08-29
AU4605393A (en) 1994-03-10
DE59310253D1 (de) 2002-01-31
ATE211348T1 (de) 2002-01-15
EP0590315A3 (fr) 1994-12-28
JPH06229564A (ja) 1994-08-16
DE59310253C5 (de) 2010-01-07
CN1130953C (zh) 2003-12-10
DE4229375A1 (de) 1994-03-10
SI9300457B (sl) 2003-12-31
SI9300457A (en) 1994-03-31
EP0590315B1 (fr) 2001-12-19

Similar Documents

Publication Publication Date Title
EP0590315A2 (fr) Elément chauffant, en particulier pour appareils de cuisine
EP0585831B9 (fr) Elément chauffant, en particulier pour appareils de cuisine
EP0379873B1 (fr) Appareil pour chauffeur des gaz
EP2375128B1 (fr) Luminaire dotée de DEL et de lentilles attribuées aux DEL
EP0542142B1 (fr) Unité de chauffage à radiation
DE3635345A1 (de) Strahlheizkoerper
EP0927503B1 (fr) Element chauffant a rayonnement avec conducteur chauffant en feuille metallique
EP0743804B1 (fr) Elément chauffant
EP0303854B1 (fr) Radiateur électrique
EP2777368A1 (fr) Pièce moulée à encastrer dans une carte de circuits imprimés
EP3337291B1 (fr) Dispositif de chauffage, appareil de cuisson doté d'un dispositif de chauffage et procédé de fabrication d'un élément chauffant
EP0729290B1 (fr) Unité de chauffage par radiation et procédé de sa fabrication
DE102006001151B3 (de) Heizerfeld eines Strahlungsheizers mit einer Heizspirale
DE202005016736U1 (de) Vorrichtung zum Beleuchten und/oder Warmhalten von Speisen, insbesondere Wärmebrücke
EP0399178B1 (fr) Appareil de cuisson des aliments avec un élément de chauffage radiant
EP3446031B1 (fr) Appareil d'éclairage d'armoire de distribution pourvu d'une platine à source lumineuse réglable
EP0922909A1 (fr) Corps de chauffe, en particulier pour ustensiles de cuisine
DE102006003073A1 (de) Elektrisches Strahlungsheizelement
DE3526783A1 (de) Strahlungs-heizeinheit
EP0542128B1 (fr) Conducteur de chauffage électrique destiné à être monté dans un appareil de chauffage par infrarouge
EP0892583A2 (fr) Conducteurs chauffants pour corps de chauffe rayonnant dans plaque de cuisson
DE3539881A1 (de) Elektrischer strahlheizkoerper zur beheizung von heizflaechen sowie verfahren und vorrichtung zu seiner herstellung
DE602004005160T2 (de) Elektrischer strahlungsheizer
DE60032539T2 (de) Elektrischer Strahlungsheizkörper und Herstellungsverfahren
DD243141A1 (de) Gluehlampe mit spezieller lichtverteilung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB GR IT LI SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: E.G.O. ELEKTRO-GERAETE BLANC UND FISCHER GMBH & CO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB GR IT LI SE

17P Request for examination filed

Effective date: 19941209

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: E.G.O. ELEKTRO-GERAETEBAU GMBH

17Q First examination report despatched

Effective date: 19961216

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB GR IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011219

REF Corresponds to:

Ref document number: 211348

Country of ref document: AT

Date of ref document: 20020115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REF Corresponds to:

Ref document number: 59310253

Country of ref document: DE

Date of ref document: 20020131

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ZIMMERLI, WAGNER & PARTNER AG

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020322

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2170061

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: E.G.O. ELEKTRO-GERAETEBAU GMBH

Free format text: E.G.O. ELEKTRO-GERAETEBAU GMBH# #75038 OBERDERDINGEN (DE) -TRANSFER TO- E.G.O. ELEKTRO-GERAETEBAU GMBH# #75038 OBERDERDINGEN (DE)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20090820

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100825

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20100823

Year of fee payment: 18

Ref country code: IT

Payment date: 20100825

Year of fee payment: 18

Ref country code: FR

Payment date: 20100901

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100823

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100827

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110827

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120824

Year of fee payment: 20

Ref country code: DE

Payment date: 20120828

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110828

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59310253

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59310253

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130828

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20131108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130828