EP1398996B1 - Elément chauffant plat pour le chauffage direct d'un milieu - Google Patents

Elément chauffant plat pour le chauffage direct d'un milieu Download PDF

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Publication number
EP1398996B1
EP1398996B1 EP02020680A EP02020680A EP1398996B1 EP 1398996 B1 EP1398996 B1 EP 1398996B1 EP 02020680 A EP02020680 A EP 02020680A EP 02020680 A EP02020680 A EP 02020680A EP 1398996 B1 EP1398996 B1 EP 1398996B1
Authority
EP
European Patent Office
Prior art keywords
casing
heating device
medium
connection
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.)
Expired - Lifetime
Application number
EP02020680A
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German (de)
English (en)
Other versions
EP1398996A1 (fr
Inventor
Uwe Neumann
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.)
Bleckmann GmbH and Co KG
Original Assignee
Bleckmann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bleckmann GmbH and Co KG filed Critical Bleckmann GmbH and Co KG
Priority to AT02020680T priority Critical patent/ATE400980T1/de
Priority to EP02020680A priority patent/EP1398996B1/fr
Priority to ES02020680T priority patent/ES2309126T3/es
Publication of EP1398996A1 publication Critical patent/EP1398996A1/fr
Application granted granted Critical
Publication of EP1398996B1 publication Critical patent/EP1398996B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • 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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • H05B3/283—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an inorganic material, e.g. ceramic
    • 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
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • a laundry washing machine in which a tubular heater is arranged in the lower region of the tub, which is also provided with at least one thermostat for controlling the temperature. Due to the design of this heater with a relatively large diameter having a jacket tube a significant minimum level for the wash water is necessary so that the tubular heater is completely surrounded by water and burning through is prevented. However, such a high minimum level runs counter to the above-mentioned requirement for energy saving. In addition, fibers are released from the laundry during the washing process, which preferably accumulate in the lower region of the tub. The tubular heater arranged therein represents a considerable flow obstacle on which such fibers prefer to settle.
  • the tubular heater with its low surface area in relation to the amount of heat to be dissipated to the washing water to be heated, a relatively high surface temperature. This favors in particular the adhesion of dirt particles and Kalkansatz and in turn has a shortening of the life result.
  • the German Offenlegungsschrift 43 12 683 A1 shows a liquid container with a heating source, which is designed as a thick-film circuit and rests outside of the liquid container at the container bottom or near the ground on a side wall.
  • US 6,058,247 shows a heating device for heating a sterilizer, in which two heating elements and a temperature sensor for better heat transfer are surrounded by a metal block. To heat the sterilization chamber, the block is attached to the outside of the chamber. For better heat transfer is between the metal block and the outside of the sterilization chamber a politiciansleitplatte arranged. In the case of the above heating devices, only one half space of the heating device always acts in the direction of the liquid to be heated.
  • US 6,423,951 shows a surface heating element for building large heatable surfaces, such as heated floors in buildings.
  • the surface heating element has a structure of various layers comprising electrodes, resistor conductor layers and insulating layers. For contacting the electrode layers or electrical connection of the electrode layers of adjacent surface heating elements designed, recesses are provided in the edge regions of the layers. Due to the modular design, the production of large heatable surfaces is possible. Even with these heaters only a half-space of the heater can be used for heating effective.
  • the invention is based on the object, a heater and a manufacturing method of the type mentioned in such a way that allow a simple design of the heating device cost-effective heating of the medium with high efficiency.
  • the electrical connections of the at least one resistance heating element are arranged and contactable from the outside, it is avoided that in the manufacture, assembly and / or storage of the heating device according to the invention, the electrical connections Resistance heating element can be damaged.
  • the heating device according to the invention has no over its outer peripheral contour beyond protruding elements that require special protection or packaging. Since the electrical connections must be made of electrically good conductive material and thus are expensive, the solution according to the invention makes it possible to produce this material-saving.
  • At least one temperature sensing element having electrical connections is furthermore arranged in the interior of the jacket.
  • the terminals of the temperature sensing element are also arranged in the connection area and can be contacted from the outside.
  • the temperature sensing element may also serve to control and / or thermal monitoring and protection of the resistance heating element. Basically, however, it is also possible to perform the function of monitoring the medium to be heated and the thermal monitoring and protection of the resistance heating element by two or more different elements.
  • the temperature sensing element can be realized, for example, by applying thermistor pastes (NTC or PTC pastes), which is applied to at least one of the insides of the shell sides, for example by screen printing technology. It is also possible to use thermistor pills (NTC or PTC pills). Furthermore, the temperature sensing element may be implemented in the form of printed thermocouples or individual thermocouples that are inserted.
  • the thermally conductive, in particular good thermal conductivity, surface coat can be constructed differently constructive.
  • the shell is composed of two individual surface elements whose outer sides each form a shell side and which are at least sealed at their contact with the medium abutting edges against the medium sealed together.
  • the surface elements can each have a different shape.
  • a particularly simple production is achieved in that the surface elements are formed congruent.
  • the two surface elements are preformed according to curved before their connection, for example by a rolling process.
  • a bias voltage is impressed, which increases even further due to the thermal expansion during operation and the contact force between the two surface elements can rise automatically.
  • the jacket consists of a single surface element with two folding sections whose outer sides each form a shell side and which lie on one another by folding the surface element along a fold line and at least at their contact edges in contact with the medium sealed together.
  • the two folding sections can receive an imposed bias in the manner explained above.
  • connection to the abutting in contact with the medium abutting edges can be done by a cohesive connection, for example by welding, soldering or gluing. Basically, there is the possibility of extending the medium-tight connection at the abutting edges beyond the range, which is not in contact with the medium during operation of the heater.
  • a tube can be provided, which is pressed flat.
  • the flattened tube is sealed medium-tight on at least one end face.
  • the shell sides or the two surface elements or the two folding sections of the jacket are also separated from the abutting edges separated or connected to each other. This can be achieved in that the shell sides at predetermined locations at a distance from the Abutting edges and outside of the at least one resistance heating element and the optionally present at least one temperature sensing element connected, preferably cohesively connected.
  • the cohesive connection can in turn be done by welding, gluing or soldering.
  • connection recess is provided.
  • an electrical contacting of the at least one resistance heating element and optionally present at least one temperature element in the connection region of the heater according to the invention can further be provided that in the connection region of the shell for the electrical connections of the at least one resistance heating element and the optionally present at least one temperature sensing element at least one connection recess is provided in at least one of the shell sides.
  • a connection recess is provided for each electrical connection of the heating element and the optionally present temperature sensing element.
  • connection recesses may be provided, which are provided at different locations in both lateral sides. In other words, the connection recesses in the two surface elements or the folding sections are then present at different locations.
  • connection recesses may be provided in the region of a marginal edge of a shell side, preferably on the marginal edge itself or in the middle region of a shell side.
  • connection recesses may be provided in the region of a marginal edge of a shell side, preferably on the marginal edge itself or in the middle region of a shell side.
  • a "cold zone” is created in the connection region of the heating device according to the invention, i. a zone in which no heat is released.
  • the jacket is made of a good heat conducting material, on the other hand is resistant to corrosive media. Therefore, it has proved to be advantageous if the jacket is made of stainless steel or corrosion-resistant aluminum.
  • At least one heating element materials are preferred which have a high electrical resistance. These may be, for example, heat conductor alloys, such as Cr, Al, Fe, CrNiFe, nickel alloys or also resistor pastes as usual in thick-film technology . Likewise, a ferro-nickel alloy, a nickel-chromium alloy or graphite can be used for this purpose.
  • thermocouples which can be used as a single element or can also be introduced by means of screen printing technology, can be used.
  • an electrical insulation can be provided on the inside of the jacket. This can be produced, for example, by applying a layer respectively provided on the shell inside for the electrical insulation of the heating element, preferably in the form of a Kapton foil, aluminum oxide or a glass ceramic.
  • the heating device according to the invention can be used in a variety of devices or machines. So this can be used, for example, in laundry washing machines, dishwashers, dryers, etc. In this case, it is possible to arrange the heater according to the invention with only a slight distance to a wall of a tub. Likewise, there is a possibility due to provide their planar configuration as part of the wall of the tub.
  • the heating device according to the invention can be used in particular in the heating of a cleaning medium in a washing machine.
  • This washing machine may be a dishwasher or a laundry washing machine.
  • the tubular heating elements used in the prior art have a profile height between 6.5 mm and 8.5 mm. Since the distance to the wall of the washing machine is the same both in the known tubular heaters and in the heater or flat heater according to the invention, is achieved by the lower height, that the level of the medium can turn out lower.
  • the minimum level of a cleaning medium is determined by the fact that the heater must be completely enclosed by the cleaning medium in order to prevent the heater from burning through.
  • a further advantageous use of the heating device according to the invention can be achieved in that a plurality of such heaters are arranged in spaced but parallel alignment with each other, wherein the individual heaters are connected to each other via suitable, preferably releasable connecting elements.
  • a heating device 10 according to the invention is shown schematically, wherein in the Fig. 5 to 12 the arranged in the interior of the shell, electrical connections having associated with the invention temperature sensing element and its arranged in the connection region of the shell and contactable, electrical connections are not shown.
  • the heating device 10 has a rectangular shape, in which in the illustrated embodiment, the ratio between width dimension and length dimension in the range of 1: 1.5 to 1: 8.
  • the thickness of the heater 10 is as it is Fig. 1 shows, much smaller than their width or length. For the illustrated embodiment, the ratio between thickness and length of the heater may be in the range of 1: 30 to 1: 100.
  • a heating device according to the invention has a thickness or height in the range of 1.5 mm to 6 mm.
  • the heating device 10 consists essentially of a heat-conducting, in particular good heat-conducting jacket 20 and a disposed inside the jacket 20 resistance heating element 30.
  • the jacket 20 in turn consists of two congruent, flat surface elements 22, 24, corresponding to the rectangular shape of the heater 10th also have a rectangular shape.
  • the two surface elements 22, 24 have the same thickness or thickness.
  • FIG. 2A right surface element 24, the outside of which forms the upper, planar shell side 20a of the heater 10 in the finished state of the heater 10 has at its lower end end or lower width end 24a two contact recesses 26 extending from the peripheral edge 24a at an angle of at least approximately 90 ° in the interior of the surface element 24 extend the same distance.
  • the two connection recesses 26 likewise have a rectangular shape and are each spaced apart and arranged symmetrically with respect to the central longitudinal axis of the surface element 24.
  • the two inner sides of the surface elements 22, 24 are also provided with an electrically insulating film 28 as an insulating layer, which is preferably a Kapton film.
  • the insulating layer 28 has at the two lateral longitudinal edges 22b, 22d or 22b, 24d and at the two connecting recesses 26 opposite end faces 22c and 24c of the two surface elements 22, 24 a constant distance to these marginal edges 22b, 22c, 22d and 24b, 24c, 24d.
  • the insulating layer extends as far as this marginal edge 22a or 24a.
  • the resistance heating element 30 is arranged on the inside of the one surface element, the surface element 22, the resistance heating element 30 is arranged.
  • the resistance heating element 30 is in the illustrated embodiment as from a sheet of a corresponding Bankleiterlegtechnik punched out Bankleitererband and extends in only one plane.
  • the resistance heating element 30 is arranged in W-shape on the inner side 22e of the surface element 22 symmetrically thereto.
  • the resistance heating element 30 with Connection elements 32 are provided, each consisting of a piece of tape 32 a and a terminal lug 32 b. Both the band pieces 32a and the terminal lugs 32b are made of a good electrically conductive material, so that the electric current is not converted into heat at this point.
  • This area is in Fig. 2c characterized by the line A.
  • the two terminal lugs 32 b at the ends of the resistance heating element 30 are mounted on the inside 22 e of the surface element 22, that they are aligned with the connection recesses 26 of the other surface element 24.
  • the two surface elements 22, 24 are produced by punching, for example, from suitable metal sheets. Subsequently, the two connection recesses 26 are disengaged in the surface element 24. Thereafter, the insulating layer 28 is applied to the inner sides 22e and 24e of the two surface elements 22, 24. Thereafter, the resistance heating element 30 already provided with the band piece 32a and the terminal lugs 32b and bent into the corresponding shape is applied to the inside 22e of the surface element 22, i. applied to the insulating layer 28 and optionally suitably secured there. However, the resistance heating element 30 can also be applied by a screen printing technology or by a plasma spraying technology.
  • the heating device 10 is closed in a medium-tight manner at the marginal edges in contact with the medium, ie the marginal edges 22b, 22c, 22d or 24b, 24c.
  • the terminal portion 20c itself need not be sealed because it is prevented from coming into contact with the medium to be heated by the way of installing the heater 10 in, for example, a laundry washing machine.
  • Fig. 10 an example of the installation of the heating device 10 according to the invention is shown.
  • the heating device 10 is in this case provided on its two lateral sides 20a and 20b with a sealing element 29, which may be sprayed onto these two lateral sides 20a, 20b along the line A.
  • the sealing element 29 itself in turn has engagement grooves for walls W of the tub of the laundry washing machine.
  • the two connection recesses 26 are thus arranged outside the tub. How out Fig. 10 shows, the heater 10 according to the invention can still be supported by Stauerklammem S in the tub. How to continue Fig.
  • the heater 10 As can be seen from the flat design of the heater 10 is compared to the known Rohrmorekörpem low water levels possible because the lower shell side 20b has the same distance as the lower horizontal Tangentialline a tubular heater, but the upper shell side 20a has a lower height than the upper tangential line of a known tubular heater.
  • the in the Fig. 3 to 4D shown heater 10 differs from the heater 10 according to the first embodiment of the FIGS. 1 to 2C in that, in addition to the heating element 30, the temperature detection element 60 belonging to the invention is shown.
  • the temperature detecting element 60 which is used for detecting the temperature of the medium to be heated, is disposed within the W-shaped heating element 30 in the form of a U-shaped loop. Its two front ends have connecting elements 62, which are summarized in the illustrated embodiment.
  • connection elements 62 a further, common connection recess 26 is provided in the surface element 24, which between the two in connection with the Fig. 1 already mentioned connection recesses 26 located in the middle of the surface element 24 and extends deep into the surface element 24.
  • the centrally arranged connection recess 26 has the same shape as the two provided on the left and right of it and in connection with the first embodiment already described terminal recesses 26, but has a greater width than this.
  • this embodiment of the heating device according to the invention differs from that in connection with the Fig. 1 to 2C explained first embodiments in that the two surface elements 22, 24 are no longer along the peripheral edges 22b, 22c, 22d or 24b, 24c, 24d materially connected to each other via a weld 50, but also at three along the central longitudinal line of the two surface elements 22nd , 24 extending points 52.
  • the electrically insulating layer 28 which is located respectively on the inside 22e and 24e of the two surface elements 22, 24, three recesses 28a, as in Fig. 4C is shown.
  • FIG. 5 to 6C shown third embodiment of the invention, wherein the disposed inside the shell, electrical connections belonging to the invention associated temperature sensing element and its arranged in the connection region of the shell and contactable, electrical connections are not shown differs from the first in that the two surface elements 22nd , 24 along a fold line F are interconnected.
  • the surface elements 22, 24 are thus part of a single plate, which is folded along the fold line F so that the two surface elements 22, 24 come to rest on each other. They therefore form folding sections 22, 24th
  • the fourth embodiment of the heating device 10 according to the invention is in the Fig. 7 to 8C shown.
  • the connection recesses 26 for the connection lugs 32 and 62 of the temperature detection element 60 are arranged so that they do not align with each other when set surface elements 22, 24. As a result, a uniquemaschinetechnischsvorgabe is created, which prevents confusion of the terminals 32, 62.
  • Fig. 9 is a fifth embodiment of the invention, wherein the arranged in the interior of the shell, electrical connections belonging to the invention associated temperature sensing element and its arranged in the connection region of the shell and contactable, electrical connections are not shown, reproduced, which differs from the embodiments shown so far, that the jacket 20 is not formed by surface elements or folding sections 22, 24, but by a flattened tube 70.
  • the tube 70 is sealed at one end face 70c along a weld 50.
  • the other front end 70a is open on the other hand.
  • the insulating layer 28 which also extends on the inner walls of the flattened tube 70 may be applied by spraying. It is also possible that the insulating layer is applied by inserting an insulating film or by vacuum suction of the film on the inside of the tube 70. How out Fig. 9 shows the insulating layer 28 must be present only at least on the two planar or parallel to each other shell sides 20a, 20b.
  • the connection recesses 26 and the arrangement of the heating element 30 in the same manner as in the embodiments described above.
  • connection recesses 26 are not located at one of the peripheral edges 22a, 22b, 22c, 22d or 24a, 24b, 24c, 24d, but in the middle one of the surface elements 22, 24.
  • the connection recesses 26 are arranged on the lower surface element 24. At the connection recesses 26 follow extensions 24f, which extend at the same angle at an angle of 90 ° downwards.
  • the heating element 30 is accordingly between equal extend.
  • the heating element 30 is accordingly between the inner sides 22e and 24e of the two surface elements 22, 24 in the in Fig. 11 arranged manner shown.
  • the two surface elements 22, 24 are connected to one another by means of a weld 50 that completely revolves at its marginal edges 22a, 22b, 22c, 22d or 24a, 24b, 24c, 24d.
  • FIG. 13 shows the attachment of this heating device 10 in, for example, a laundry washing machine or dishwashing machine.
  • the machine has for this purpose in one of its tub walls W two openings W 'whose inner diameter substantially corresponds to the outer diameters of the two extensions 24f of the lower surface element 24.
  • sealing rings DR are arranged in the form of O-rings on the extensions 24f.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)

Claims (9)

  1. Dispositif chauffant servant à chauffer un milieu liquide ou gazeux, contenant :
    au moins un élément chauffant à résistance électrique (30) qui présente au moins deux raccords électriques (32) et dont la géométrie s'étend essentiellement dans un plan ; et
    une enveloppe (20) thermoconductrice à surface plane avec deux faces (20a, 20b) avec contour extérieur à surface plane servant à céder la chaleur au milieu à chauffer, qui loge de manière électriquement isolée dans son intérieur l'au moins un élément chauffant à résistance (30) et présente au moins une zone de raccordement (20c), dans laquelle les raccords électriques (32) de l'élément chauffant à résistance (30) sont agencés et peuvent être mis en contact,
    caractérisé en ce qu'au moins un élément de détection de température (60) présentant des raccords électriques (62) est agencé à l'intérieur de l'enveloppe (20) et dont les raccords électriques (62) sont agencés et peuvent être mis en contact dans la zone de raccordement (20c) de l'enveloppe (20) ;
    les faces de l'enveloppe (20a, 20b) étant au moins reliées de manière étanche au milieu au niveau de leurs bords (22a, 22b, 22c, 22d et/ou 24a, 24b, 24c, 24d) pouvant être mis en contact avec le milieu à chauffer ; et
    l'enveloppe (20) se composant de deux éléments plats (22, 24) individuels, de préférence coïncidents, qui forment respectivement une face de l'enveloppe (20a, 20b), les faces de l'enveloppe étant reliées par correspondance de matière au niveau de leurs bords (22a, 22b, 22c, 22d et/ou 24a, 24b, 24c, 24d) pouvant être mis en contact avec le milieu à chauffer.
  2. Dispositif chauffant selon la revendication 1,
    caractérisé en ce que l'enveloppe (20) se compose d'un seul élément plat (21) avec deux sections de pliage (22, 24), qui forment respectivement une des faces de l'enveloppe (20a, 20b) et qui sont superposées par pliage de l'élément plat (21) le long de la ligne de pliage (F).
  3. Dispositif chauffant selon la revendication 1,
    caractérisé en ce que l'enveloppe (20) se compose d'un élément plat en forme de tuyau (70) aplati, qui est obturé de manière étanche au milieu, de préférence par correspondance de matière, au niveau d'au moins une extrémité (70c) frontale.
  4. Dispositif chauffant selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce qu'il est prévu au moins un évidement de raccordement (26) dans au moins une des faces de l'enveloppe (20a, 20b) dans la zone de raccordement (20c) de l'enveloppe (20) pour les raccords électriques (32, 62) de l'au moins un élément chauffant à résistance (30), dans lequel il est prévu de préférence pour chaque raccord électrique (32, 62) de l'élément chauffant à résistance (30) et de l'élément de détection de température (60) respectivement un évidement de raccordement (26).
  5. Dispositif chauffant selon la revendication 4,
    caractérisé en ce que l'au moins un évidement de raccordement (26) est prévu dans la zone même d'une arête de bord (22a, 22b, 22c, 22d et/ou 24a, 24b, 24c, 24d).
  6. Dispositif chauffant selon la revendication 5,
    caractérisé en ce que l'au moins un évidement de raccordement (26) est prévu dans la zone centrale d'au moins une face de l'enveloppe (20a, 20b).
  7. Dispositif chauffant selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que l'enveloppe (20) est dotée dans la zone de raccordement (20c) d'au moins un joint (D) au niveau de sa face extérieure, qui s'étend de préférence sur toute la face de l'enveloppe (20a, 20b) et qui mieux encore est rapporté.
  8. Dispositif chauffant selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que l'au moins un élément de détection de température (60) est intégré dans le dispositif chauffant au choix par application de pâtes thermistances et/ou de pastilles thermistances.
  9. Dispositif chauffant selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que l'enveloppe (20) est au choix en aluminium ou en acier inoxydable résistant à la corrosion et respectivement une couche (28) d'isolation électrique de l'élément chauffant à résistance (30), de préférence en film Kapton, en vitrocéramique ou en oxyde, d'aluminium est appliquée au niveau des faces intérieures de l'enveloppe.
EP02020680A 2002-09-13 2002-09-13 Elément chauffant plat pour le chauffage direct d'un milieu Expired - Lifetime EP1398996B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT02020680T ATE400980T1 (de) 2002-09-13 2002-09-13 Flachheizprofil für direkte mediumbeheizung
EP02020680A EP1398996B1 (fr) 2002-09-13 2002-09-13 Elément chauffant plat pour le chauffage direct d'un milieu
ES02020680T ES2309126T3 (es) 2002-09-13 2002-09-13 Elemento de calentamiento plano para el calentamiento directo de un medio.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02020680A EP1398996B1 (fr) 2002-09-13 2002-09-13 Elément chauffant plat pour le chauffage direct d'un milieu

Publications (2)

Publication Number Publication Date
EP1398996A1 EP1398996A1 (fr) 2004-03-17
EP1398996B1 true EP1398996B1 (fr) 2008-07-09

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EP02020680A Expired - Lifetime EP1398996B1 (fr) 2002-09-13 2002-09-13 Elément chauffant plat pour le chauffage direct d'un milieu

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EP (1) EP1398996B1 (fr)
AT (1) ATE400980T1 (fr)
ES (1) ES2309126T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20050008U1 (it) * 2005-03-14 2006-09-15 I R C A S P A Ind Resistenze Elemento riscaldante.
DE102007004048B3 (de) 2007-01-22 2008-02-07 Miele & Cie. Kg Wasserführendes, elektrisches Haushaltsgerät
IT201800007339A1 (it) * 2018-07-19 2020-01-19 Riscaldatore elettrico per serbatoio
IT201900022797A1 (it) * 2019-12-03 2021-06-03 Irca Spa Riscaldatore elettrico per riscaldare una sostanza in un autoveicolo
CN114525661B (zh) * 2022-02-09 2024-04-19 安徽省宁国市天成电机有限公司 一种钢管加热器矫正定型装置

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EP1398996A1 (fr) 2004-03-17
ES2309126T3 (es) 2008-12-16

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