EP3451791B1 - Heizeinrichtung und verfahren zur herstellung einer heizeinrichtung - Google Patents

Heizeinrichtung und verfahren zur herstellung einer heizeinrichtung Download PDF

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Publication number
EP3451791B1
EP3451791B1 EP18190886.4A EP18190886A EP3451791B1 EP 3451791 B1 EP3451791 B1 EP 3451791B1 EP 18190886 A EP18190886 A EP 18190886A EP 3451791 B1 EP3451791 B1 EP 3451791B1
Authority
EP
European Patent Office
Prior art keywords
heating
heating conductor
another
conductor strips
heating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18190886.4A
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German (de)
English (en)
French (fr)
Other versions
EP3451791A1 (de
Inventor
Robin Abendschön
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 Geratebau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102017222958.6A external-priority patent/DE102017222958A1/de
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL18190886T priority Critical patent/PL3451791T3/pl
Publication of EP3451791A1 publication Critical patent/EP3451791A1/de
Application granted granted Critical
Publication of EP3451791B1 publication Critical patent/EP3451791B1/de
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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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • 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
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • 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
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • 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
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to a heating device, in particular as a radiation heating device for a hob, and to a method for producing such a heating device.
  • a radiant heating device for a hob with a flat support made of heat-insulating and electrically insulating material, on the top of which a heating element in the form of a tape runs in strips in a laying pattern.
  • the heating element consists of a heating conductor strip and is pressed to a small extent with a lower edge of the heating conductor strip into the upper side of the carrier for holding purposes.
  • the heating conductor tape has integrally formed holding members which stand down over the lower edge and are slightly below the height of the heating conductor tape. These holding members contribute a large part to the attachment of the heating conductor tape or the heating element to the carrier.
  • the two lateral sides of the heating conductor strip radiate heat during operation at a little over 1000 ° C, which then radiates upwards.
  • each of the induction heating coils is wound from a conductor, the cross section of which is narrow and high compared to a winding plane.
  • a radiation heating device can have a multilayer heating conductor, the individual layers being separated by insulating layers and lying completely on top of one another with the stacking direction away from a surface of the carrier.
  • maximum heating powers for such a radiant heating device are currently limited to approximately 3600W or 3700W when operated in the household. Higher heating outputs are currently not achievable with this technology.
  • the invention has for its object to provide a heating device mentioned above and a method for producing such a heating device with which problems of the prior art can be solved and in particular it is possible to generate a higher heating power compared to the prior art and to train a heating device in a new way.
  • the heating device has a flat carrier.
  • This can advantageously consist of heat-insulating and electrically insulating material, as is known per se from the prior art for radiant heating devices for hobs.
  • This carrier has a carrier top, which is advantageously flat or even.
  • a heating element is provided on this upper side of the carrier, which runs in webs in a specific laying pattern. This laying pattern can be spiral and / or meandering, as is also known per se from the prior art. For the most part, the heating element advantageously runs in parallel or almost parallel or concentric tracks.
  • the heating element has at least two heating conductor strips. Each of these heating conductor strips has lateral sides and an upper edge and a lower edge.
  • the at least two heating conductor strips are collapsed according to the invention or are placed one on top of the other or folded onto one another with their mutually facing lateral sides, wherein they touch at least partially with the mutually facing lateral sides but do not run completely against one another. Under certain circumstances, they can lie together point by point or in sections.
  • the at least two heating conductor strips are firmly and permanently connected to one another, at least in the state in which they are arranged or fastened to the carrier, that is to say as a finished heating device.
  • the at least two heating conductor strips of the heating element are already firmly connected to one another before being fastened to the carrier.
  • a duplication or multiplication of the heating conductor tape for the heating element has the great advantage over an integral and correspondingly thick heating conductor tape, which would form the heating element as the only heating conductor tape, that it is easier to manufacture, especially if the heating element is corrugated or is to be corrugated .
  • a corrugation can take place with a wavelength between 2mm and 8mm and / or with a wave amplitude between 0.5mm and 5mm, as is known from the State of the art is known. This not only increases the radiation area of the lateral sides of the heating element, but it is also possible to accommodate a heating conductor tape or a heating element with a very long length for a specific value of the electrical resistance on the carrier with predetermined dimensions.
  • the heating element as it were, consisting of several layers of heating conductor strips, has points or areas at which these layers do not lie directly on top of one another or do not touch. Furthermore, it is also the case that such contact of the individual heating conductor strips with their lateral sides does not play a role in the current flow.
  • a material from the prior art can advantageously be selected which oxidizes on its surface at least after several operating hours at operating temperature in such a way that it has a high contact resistance. So even adjacent areas of the lateral sides of the heating conductor strips are electrically insulated from one another, so to speak.
  • the heating conductor tapes can advantageously extend over the full length of the heating element.
  • a heating element then consistently consist of two or always three or possibly even more heating conductor strips from start to finish, which are folded together or placed one on top of the other with their lateral sides.
  • a ratio of the thickness of a heating conductor strip to its height is between 1:20 and 1: 500. It is particularly advantageously between 1:60 and 1: 200.
  • a thickness of the heating conductor tape can be in the range from 0.03 mm to 0.1 mm, advantageously in the range from 0.05 mm to 0.07 mm.
  • a height can be between 2mm and 8mm, advantageously between 3mm and 5mm.
  • the heating conductor strips are advantageously welded to one another, in particular this can be done by means of welding spots.
  • Such welding spots are advantageously at a distance from one another along a longitudinal direction of the heating conductor strips, which can be, for example, twice to twenty times the height of a heating conductor strip.
  • the distance can be between 5mm and 100mm, advantageously between 9mm and 20mm.
  • the heating element must be processed, in particular to produce the aforementioned Corrugation, as well as a possible pressing of the heating element into the upper side of the carrier, is more possible, especially if the layers of heating conductor strips lie close together.
  • a connection or welding of the heating conductor strips to one another is preferably arranged or carried out below half the height of the heating conductor strip, that is to say rather in a lower region of the heating element or the heating conductor strips.
  • Such a connection or welding is advantageously provided below a quarter of the height of the heating conductor strip, particularly advantageously on a lower edge.
  • the heating element is in direct contact with the upper side of the support or by a certain, albeit slight, embedding in the upper side of the support, cooling the heating element directly and, on the other hand, heat radiation is reduced.
  • a deterioration of the heat radiation can have a less negative effect at these connection points, particularly if it is a weld.
  • the heating conductor strips move away from each other somewhat towards the top or towards their upper edges, as a result of which the radiation of the respective heating output is improved.
  • a heating element in principle, it is possible for a heating element to consist of a plurality or a plurality of heating conductor strips which are placed one on top of the other and are connected to one another, for example four heating conductor strips or more.
  • the heating element is advantageously constructed in two or three layers with two heating conductor strips or three heating conductor strips on top of one another.
  • the heating element is particularly advantageously constructed in two layers with two heating conductor strips on top of one another.
  • the heating conductor strips are of identical or identical design. This can apply to their contour and / or their thickness. This can simplify production if only one type of heating conductor has to be produced.
  • two heating conductor strips with the same contour and different thickness can be connected to form a heating element, the thickness difference being between 5% and 100% of the thinner heating conductor tape.
  • the heating conductor tapes are advantageously held or arranged as a heating element upright on the upper side of the carrier. This is advantageously done at an angle of 90 °, that is to say at right angles to the top of the carrier.
  • the upper edge of the heating element or the heating conductor strips points upwards and the respective lower edge lies against the carrier or the top side of the carrier or is even embedded or pressed in a bit in the top side of the carrier or in the carrier.
  • This is known per se from the prior art and brings about a particularly advantageous mounting and arrangement of the heating element on the carrier. This is particularly advantageous in the case of such a multilayer heating element comprising a plurality of heating conductor tapes.
  • the heating element has downwardly projecting holding members which are pressed into the top of the carrier in order to hold or fasten the heating element to the carrier.
  • These holding members protrude over a line that runs for more than 80% of the length of the heating element along the lower edge and parallel to the upper edge.
  • the holding members protrude over this line between 30% and 200% of the height of the heating conductor tape.
  • this line can be the lower edge of the heating conductor strips themselves. This is especially true when the holding members are separate components that are placed in a U-shaped or bow-like manner with two legs from above over the upper edge of the heating element, so that they protrude downward beyond the lower edge. Then the lower edge continues straight.
  • the holding members or the two legs of the holding members enclose all layers of heating conductor strips between them. This can already be a kind of fixed connection of the heating conductor strips to one another and to the heating element.
  • the holding members are advantageously additionally fastened to the heating element by means of a welded connection or by twisting the two legs which lie one on top of the other, below the lower edge.
  • the holding members are preferably fastened to the lower edge in such a way that the two legs, which project downward beyond the lower edge, are connected to one another and at the same time to the heating element or to the heating conductor strips in the lower region, and are particularly preferably all welded to one another here. It is sufficient if the main weld connection takes place between the two legs of the holding members, as long as a small part of the weld connection is also integrally connected to the lower edges.
  • the holding members themselves and by means of their connection to the heating element can cause the heating conductor strips to be connected to one another in addition to their function for holding the heating element on the carrier.
  • the holding members can be provided integrally on at least one heating conductor strip as projections projecting downwards. They therefore protrude beyond the aforementioned line, which largely coincides with the lower edge, this line being interrupted only by holding members projecting downward from the lower edge.
  • the shape of these projections can be square or rectangular, it can also advantageously be trapezoidal with a certain taper downwards in order to make it easier to insert or press into the top of the carrier.
  • each heating conductor strip can have holding members.
  • the respective holding members of the respective heating conductor tapes are then not arranged to overlap, so that the heating conductor tapes lie congruently on one another, but are offset from one another.
  • the heating conductor strips are advantageously offset from one another by the same spacing of the holding members, so that one of the heating conductor strips is alternately provided in the sequence of the holding members. For the holding effect, it is considered sufficient if a holding member is, so to speak, pressed into the upper side of the carrier only in one layer.
  • heating element In order to be able to manufacture a previously described heating device, two steps are carried out first.
  • at least two heating conductor strips are placed on one another with their lateral sides in order to form a heating element.
  • the heating element or the heating conductor strips are corrugated, with deflections of such a corrugation out of its flat lateral sides.
  • the order of these two steps can be arbitrary or interchanged.
  • the heating element can thus either first be formed from at least two heating conductor strips which are connected to one another in a lying manner. The corrugation can then take place in a subsequent step, so that the interconnected heating conductor strips are corrugated, so to speak.
  • the individual heating conductor strips can first be corrugated, which of course takes place with an identical corrugation. They are then placed on top of one another in a subsequent step and advantageously firmly connected to one another.
  • a corrugated multilayer heating element is then present, it is applied in a subsequent step in a specific laying pattern, as was mentioned at the beginning, in strips to a top of a flat carrier and fastened by pressing.
  • a lower edge of the heating element can be pressed into the upper side of the carrier, alternatively or additionally with holding elements of the heating element projecting downward.
  • This application of the heating element to the carrier top of the flat carrier is advantageously carried out in accordance with the aforementioned DE 19522798 A1 , that is, by inserting the entire heating element into a kind of special assembly form with milled groove-like depressions.
  • the heating element then protrudes a little above the top of this mounting form, so that the mounting form together with the heating element is then placed on the top of the carrier and pressed on.
  • the heating element in particular with the above-mentioned projecting holding members, presses into the top of the carrier for its fastening.
  • the heating conductor strips are firmly connected to one another to form the heating element, so that the heating element is securely attached to the carrier, in particular when it is thermally moving.
  • the heating conductor strips are advantageously connected to one another before they are corrugated, so that there is therefore a corrugation in the multilayer heating element. Then it is also easier and more precise to connect the heating conductor strips to one another according to a specific specification than if the heating conductor strips were first individually corrugated and then firmly connected to one another.
  • the heating device has exactly two heating conductor strips which are formed in one piece and in one piece with one another. In particular, they are worked out from a single band, for example punched, but this is also regarded as consisting of two heating conductor bands within the scope of the invention should.
  • the two heating conductor strips are then placed one on top of the other in the production of the heating element or the heating device by bending or folding along a bending line. As previously explained, this bending line runs parallel to the longitudinal extension of the heating element and / or parallel to the upper edge.
  • the two heating conductor strips are thus, so to speak, only one, or are already integrally connected to one another, so that they no longer necessarily have to be connected to one another after bending or folding.
  • the two heating conductor strips are first folded onto one another in a first step, and then in a subsequent second step the doubled heating element is corrugated. The other way around, it would hardly be possible due to the one-piece design of the heating element.
  • the two heating conductor strips can also have holding members protruding from the lower edge in this embodiment for pressing into the upper side of the carrier for holding the heating element on the carrier, these holding members advantageously projecting equally far beyond the lower edge.
  • the holding members as described above, integrally molded out of the heating conductor strips or protruding therefrom, and are therefore not separate parts.
  • the bending edge or bending line can run centrally between the two lower edges of the two heating conductor strips, that is to say form a mirror axis, so to speak.
  • the bending edge or bending line advantageously runs through the end edges of the aforementioned holding members, so that the two heating conductor strips are connected to one another in one piece and in one piece at the end edges or ends of the holding members. This makes bending and folding easier. Alternatively, it would also be possible to subsequently attach separate holding members to the double heating element, as previously explained.
  • a heating element 11 is shown from the side, which, like the 2 and 3 show, consists of two heating conductor strips 13a and 13b. These are laid flat against one another and, according to the invention, run partially, but not completely, on one another. This is according to the enlargement of the top view from above Fig. 3 can be seen where isolated narrow air gaps 28 can be seen between the heating conductor strips 13a and 13b. Weldings 26 represented by crosses hold the two heating conductor strips 13a and 13b together, as a result of which they are firmly and permanently connected to one another. From Fig. 3 Air gaps 28 to be recognized can be very narrow and lie in the range from 10% to 500% of the thickness of the heating conductor strips 13.
  • the heating conductor strip 13a has one in Fig. 1 lateral side 15a to be recognized, a straight upper edge 17a and a lower edge 19a.
  • the lower edge 19a runs largely straight, but is interrupted at the bottom by holding members 21a integrally projecting downward therefrom.
  • the height of the heating conductor strip 13a can be the few millimeters mentioned at the outset, and the spacing of the holding members 21a from one another can be approximately 15 mm to 25 mm.
  • the second heating conductor strip 13b is of exactly the same design and also has the same thickness as that Fig. 3 shows.
  • the heating conductor strips 13a and 13b are flat together or put together and are connected by a spot welding device 23 with two welding tips 25a and 25b by means of the spot welds 26.
  • the spot welds 26 are provided at a distance from one another so that they are each provided on the holding members 21a. Essentially, they lie on the intended continued line of the lower edge 19a, but they could also lie somewhat lower below this line, that is to say fully or only in the area of the holding members 21. The reasons for this have been explained above, in particular the structure the mainly active part of the heating conductor strips 13 or of the heating element 11, which corresponds to the height of the heating conductor strips 13 between the upper edge 17 and the lower edge 19, is not adversely affected or harmful.
  • FIG Fig. 4 An alternative embodiment of a heating element 111 is shown in FIG Fig. 4 to see.
  • the heating conductor strips 113a and 113b are each also identical and essentially similar to the heating conductor strips 13a and 13b of the previous exemplary embodiment. They therefore have lateral sides 115, as can be seen here the lateral side 115a of the heating conductor strip 113a. Furthermore, they have upper edges 117a and 117b, and the lower edge 119a can also be seen from the heat conductor strip 113a.
  • Both heating conductor strips 113a and 113b have integrally formed holding members 121a and 121b at the bottom. However, these are offset from one another in such a way that they follow one another alternately and are in each case not overlapping or congruent, as is the case with the heating element 11 in FIG 1 to 3 the case is.
  • the distance between the holding members 121a and 121b to one another is therefore twice as large. Nevertheless, it is also possible to securely attach the heating element 111 to a carrier by inserting the individual holding members 121a and 121b, which are only constructed in one layer.
  • the two heating conductor strips 113a and 113b are in turn connected by welds 126, which are illustrated by crosses.
  • the distance between the welds 126 corresponds also to those of Fig. 1 , only that the welds 126 cannot be carried out here on the holding members 121a and 121b.
  • these holding members 121a and 121b do not abut each other because they are offset from one another.
  • the welds 126 are provided in the lower region of the heating conductor strips 113a and 113b, that is to say closer to the lower edge 119 than to the upper edge 117, in each case exactly in the middle between adjacent holding members 121.
  • the welds 126 could also be so be made that they directly connect a lower edge 119 of a heating conductor strip 113 with a holding member 121 of the other heating conductor strip 113.
  • a heating element 11 In the top view of the Fig. 5 on a heating element 11 it can be seen what the state is after the corrugation, that is to say when the heating element 11 is completely corrugated.
  • the two-layer heating element 11 produced as prescribed from the two heating conductor strips 13a and 13b has passed through a device for corrugation, as is also already used in the prior art for producing corrugated heating elements known from the documents mentioned at the beginning.
  • the holding elements 21 or the welds 26 lie in the course of the corrugation, that is to say whether in apexes or in inflection points of the wave course, does not matter for the finished heating element 11.
  • a shape of this curl can be that of Fig. 5 correspond and take place as known in the prior art.
  • the two heating conductor strips 13a and 13b are placed one on top of the other, advantageously in such a way that their holding members, not shown here, either lie exactly on top of one another accordingly Fig. 1 or offset from one another are corresponding Fig. 4 .
  • the welds are then carried out by means of the welding tips 25a and 25b in the previously described manner in order to firmly and permanently connect the two heating conductor strips 13a and 13b to one another.
  • the locations for the welds can be selected as described above.
  • FIG. 7 A hob 30 with a hob plate 31 and a heating device 33 according to the invention is shown underneath.
  • the heating device 33 is applied to the underside of the hob 31, as is known in the prior art.
  • the heating device 33 itself is designed as a so-called radiation heating device and has a flat and flat support 35 with an outer circumferential support edge 36.
  • a heating element 11 is applied to a large part of the surface of the support 35 within the support edge 36, specifically in a circumferential manner not shown here or meandering form as a laying pattern, possibly also concentric. However, this can also be found in the prior art. Above all, the pressing in of a heating element 11 is advantageous Fig.
  • a significantly higher heating output can be achieved with a simple and easy to carry out manufacturing process which is ensured at the same time.
  • FIG. 8 For a further embodiment of the invention it is shown how two heating conductor strips 213a and 213b are already produced in one piece and in one piece from the beginning.
  • the two heating conductor strips 213a and 213b run mirror-symmetrically to a bending line B shown in dash-dotted lines.
  • recesses 220 are punched out in an elongated form from a single originally wide strip of corresponding heating conductor material, which in turn are symmetrical with respect to their longitudinal direction to a bending line B.
  • the heating conductor strips 213a and 213b have not only the upper edges 217a and 217b as outer edges of the previously continuous wide strip, but also lower edges 219a and 219b. From these lower edges 219a and 219b are holding members 221a and 221b from or above, the two heating conductor strips merging into one another on the holding members 221a and 221b.
  • the shape of the recesses 220 accordingly determines the shape of the holding members 221a and 221b and the height of the heating element in the finished state Fig. 7 .
  • bending edges 222 are provided, specifically along this bending line B.
  • These bending edges 222 can be formed as continuous bending edges by embossing or grooving or, so to speak, prefabricated. You can use it to specify the point at which the two heating conductor strips are then bent and folded onto one another along the bending line B. Similar to in Fig. 1 it can be clearly seen here how large the distance of the holding members 221a and 221b is along the longitudinal direction of the heating conductor strips in the non-corrugated state.
  • the holding members could also be made shorter or longer, narrower or wider, closer to each other or further apart.
  • FIG Fig. 9 shows a heating element 211 from the side in front of the waves, again in accordance with or similar to that in FIG Fig. 1 .
  • the lower heating conductor strip 213b was folded along the bending line B into the plane of the drawing by 180 ° so that it was as flat as possible or in plan view in accordance with FIGS 2 and 3 to lie on the other heating conductor strip 213a, in each case with the inside.
  • the two lateral sides 215a and 215b each point outwards, as is provided according to the invention.
  • the lower edge of the holding members 221a is formed by the bending edges 222. This closed lower edge can even possibly be similar to an indentation into a carrier 35 Fig. 7 facilitate.
  • the left punctiform weld 226 is located approximately halfway up the heating conductor strip 213. However, it could also be provided higher or lower or somewhere between the upper edge 217a and lower edge 217b, possibly directly on one of these edges.
  • the right option is a spot weld 226 on a holding member 221a or approximately in the center of the surface of this holding member. This weld 226 is then only a very small distance from the lower bending edge 222, so that the holding action against bending the heating element 211 or bending the two heating conductor strips 213a and 213b away from one another is not very good.
  • the heating element 211 is still to be corrugated, in particular with a final shape corresponding to the top view of FIG Fig. 5 , such a bending or spreading apart is hardly possible or probable here.
  • the spot welds 226 can be dispensed with altogether, which significantly reduces the assembly effort and increases the service life.
  • the two heating conductor tapes do not necessarily have the same shape and must be completely congruent with each other after folding or bending.
  • Other constellations are also conceivable. For reasons of an even distribution of the heating power and especially the surface heating power, this is highly recommended.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Central Heating Systems (AREA)
EP18190886.4A 2017-09-04 2018-08-27 Heizeinrichtung und verfahren zur herstellung einer heizeinrichtung Active EP3451791B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18190886T PL3451791T3 (pl) 2017-09-04 2018-08-27 Urządzenie grzewcze i sposób wytwarzania urządzenia grzewczego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017215417 2017-09-04
DE102017222958.6A DE102017222958A1 (de) 2017-09-04 2017-12-15 Heizeinrichtung und Verfahren zur Herstellung einer Heizeinrichtung

Publications (2)

Publication Number Publication Date
EP3451791A1 EP3451791A1 (de) 2019-03-06
EP3451791B1 true EP3451791B1 (de) 2020-03-25

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EP18190886.4A Active EP3451791B1 (de) 2017-09-04 2018-08-27 Heizeinrichtung und verfahren zur herstellung einer heizeinrichtung

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PL (1) PL3451791T3 (pl)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4229375C2 (de) 1992-09-03 2000-05-04 Ego Elektro Blanc & Fischer Strahlungs-Heizkörper
DE19522798A1 (de) 1995-06-23 1997-01-02 Ego Elektro Blanc & Fischer Verfahren zur Herstellung eines Strahlungsheizkörpers und Strahlungsheizkörper
SE506968C2 (sv) * 1996-07-25 1998-03-09 Electrolux Ab Keramisk spishäll och förfarande för framställning av filmskiktsbeläggning
FR2792158B1 (fr) * 1999-04-09 2001-05-18 Jaeger Regulation Foyer de cuisson par induction modulable a rayonnement reduit et procede de realisation
EP2186380B1 (en) * 2007-07-20 2016-06-22 LG Electronics Inc. Electric heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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PL3451791T3 (pl) 2020-11-16
EP3451791A1 (de) 2019-03-06

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