EP0611922A1 - Electric heating apparatus of reduced thickness - Google Patents

Electric heating apparatus of reduced thickness Download PDF

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Publication number
EP0611922A1
EP0611922A1 EP94420054A EP94420054A EP0611922A1 EP 0611922 A1 EP0611922 A1 EP 0611922A1 EP 94420054 A EP94420054 A EP 94420054A EP 94420054 A EP94420054 A EP 94420054A EP 0611922 A1 EP0611922 A1 EP 0611922A1
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EP
European Patent Office
Prior art keywords
panel
heating element
plate
support plate
heating
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Granted
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EP94420054A
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German (de)
French (fr)
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EP0611922B1 (en
Inventor
Jean-Claude Germain
Jean-Louis Compeau
Daniel Perret
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SEB SA
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SEB SA
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Publication of EP0611922B1 publication Critical patent/EP0611922B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/04—Stoves or ranges heated by electric energy with heat radiated directly from the heating element
    • F24C7/043—Stoves

Definitions

  • the present invention relates to an electric heating device, preferably a stationary station comprising a main frame in which is mounted on the one hand at least one heating element including a resistive circuit, said element being associated with a support plate integral with the frame, and on the other hand at least one radiation plate forming the front of the device, said plate being integral with the frame and mounted at a distance from the heating element.
  • Electric heating devices of the type mentioned above can be considered to simultaneously provide both natural convection and radiation heating from the radiation plate located at the front of the device.
  • a type of device is well known and generally consists of a metal frame including at least the rear face of the device which is intended to be fixed to a fixed post on a residential wall for example.
  • the heating element is constituted in a manner known per se by an enamelled sheet plate on which is printed a resistive track.
  • the front face of the device generally consists of an attached grid, at a distance from the enamelled sheet, on the lateral faces of the frame.
  • Such devices use high-temperature resistive elements of the order of 350 ° C at the level of the resistive track, and in all cases greater than 300 ° C.
  • the object of the present invention therefore aims to remedy the various problems mentioned above, and to propose a new type of electric heating appliance making it possible to provide heating power equivalent to traditional appliances using heating elements. low temperature, while being compact, and in particular of reduced thickness.
  • Another object of the invention is to provide an electric heating device in which the electrical insulation of the heating elements is improved.
  • An additional object of the invention is to provide an electric heating device favoring the radiant heating at the expense of convection heating.
  • an electric heating device comprising a main frame in which is mounted on the one hand at least one heating element including a resistive circuit, said element being associated with an integral support plate of the frame and on the other hand at least one radiation plate forming a facade of the device integral with the frame 1 and mounted at a distance from the heating element characterized in that the heating element consists of a low flat heating element sandwich structure temperature said structure being electrically insulated, preferably on its two faces by insulating films and bonded by one face on one side of the support plate, the other side of the plate being provided with a heat sink element.
  • the electric heater according to the invention shown in Figure 1 comprises a main frame 1, for example metallic, intended to form the general framework of the device.
  • the heating device according to the invention is a stationary device intended for example to be fixed on or against a residential wall.
  • the frame 1 comprises a rear panel 2 by which the device can be fixed to a partition.
  • the frame 1 is of substantially rectangular shape and is provided with a peripheral border defining two lateral borders 3, an upper border 4 and a lower border 5.
  • the heating device is provided with a low temperature heating element 10.
  • a low temperature heating element should be understood in the technical field considered, heating elements including resisitive elements whose heating temperature is not higher than 300 ° C and preferably does not exceed 250 ° C , the ideal heating range being of the order of 210 to 222 ° C.
  • the heating element 10 is a flat heating element with a sandwich structure of the type described in French patent application No. 9200970 or in the corresponding European patent application EP-A-93420028-8 the descriptions of which are here considered to be incorporated into the text of this request.
  • the heating element 10 preferably used in the context of the present invention therefore comprises a resistive track 11 forming for example a series of loops and coils, inserted in a layer of thermoplastic material such as PFA.
  • the planar structure thus produced is electrically insulated on its two faces by two insulating films such as polyimide.
  • the flat heating element 10 is bonded by one face to a support plate 15 secured to the frame 1.
  • the heating element 10 is bonded for example using a layer of thermoplastic material such as PFA, on the side 15a of the support plate 15 which is located opposite a radiating panel 17 forming the front face of the device.
  • the radiating panel 17 extends substantially in the vicinity of the borders 3, 4, 5 so as to leave a reduced peripheral space 18 between the borders 3, 4, 5 and the radiating panel 17.
  • the peripheral space 18 is used for creation a natural flow of convection heating.
  • the radiating panel 17 is integral with the rear panel 2 by means of a series of fixing lugs 19, said radiating panel 17 being mounted at a distance from the heating element 10.
  • the mounting distance must be as small as possible. so as to minimize the total thickness of the device, but must also be sufficient taking into account the material constituting the radiating panel 17, so that the latter is not likely to exceed the limit values of surface temperature imposed by the standards .
  • the radiating panel 17 is glass-based, and the distance between the panel 17 and the extension plane of the heating element 10 will be of the order of 12 mm.
  • the radiating panel can also be a metal plate, preferably provided with perforations.
  • the heating device comprises a heat sink element 20, consisting for example of a profiled panel defining a series of corrugations 21 forming heat exchange surfaces.
  • the purpose of the heat sink element 20 is to induce air circulation making it possible to prevent an excessive rise in temperature of the heating element which can lead to its self-destruction.
  • the heat sink element 20 serves both as a spacer between the rear panel 2 and the support plate 15 and as a means of fixing said plate 15 to the rear panel 2.
  • the heat sink element 20 is fixed, for example by bolting on the rear panel 2 and also by any appropriate means on the support plate 15.
  • the heating element 10 extends over a surface less than the surface of the radiation panel 17, and represents for example one third of the surface of the radiating panel 17.
  • the heating element 10 is arranged in the lower part of the support plate 15.
  • the heating element 10 is glued to the side of the support plate 15 which is located opposite the rear panel 2 of the device.
  • the heat sink element 20 extends between the support plate 15 and the radiation panel 17 '.
  • the heat sink element 20 is fixed by any appropriate means to the support plate 15 and has an overall width less than the distance between the support plate 15 and the radiating panel 17 'so that the corrugations 21 stop at a distance from the surface of the radiating panel 17 '.
  • the presence of the heat sink element 20 facing the front radiating panel 17 ' allows, by creating a natural convection on the front part of the device, to reduce the temperature of the radiating panel 17' .
  • the latter is advantageously constituted by a metal plate, full, or provided with perforations.
  • the electric heating device therefore makes it possible, using low temperature heating elements mounted in combination with a heat sink element 20, to produce a mixed heating device, by convection and radiation, ensuring performance. heating equivalent to devices using high temperature heating elements.
  • the use of low temperature heating elements makes it possible to reduce the total thickness of the heating appliance without reducing the heating performance or reducing the overall lifetime of the appliance.
  • the overall thickness of the heater according to the invention is less than 50 mm and preferably between 40 and 45 mm. It should also be noted that the use of low temperature heating elements, as well as the simplified overall arrangement of the device ultimately leads to obtaining a device of reduced cost. Finally, the use of low temperature heating elements makes it possible to reduce the differences in expansion between the parts of the apparatus and consequently to greatly or completely reduce the sound clicks characteristic of expansions.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

The invention relates to an electric heating apparatus comprising a main frame, in which there is mounted on the one hand at least one heating element (10) including a resistive circuit (11), said element (10) being associated with a support plate (15) which is integral with the frame (1), and on the other hand at least one radiation plate (17) which forms a facade of the apparatus, is integral with the frame (1) and mounted at a distance from the heating element (10), characterised in that the heating element (10) consists of a low-temperature flat heating element of sandwich structure, said structure being electrically insulated, preferably on its two faces, by insulating films and stuck via one face on one side of the support plate (15), the other side of the plate (15) being provided with a thermal dissipation element (20). Stationary heating apparatus. <IMAGE>

Description

La présente invention concerne un appareil de chauffage électrique, de préférence à poste fixe comprenant un bâti principal dans lequel est monté d'une part au moins un élément chauffant incluant un circuit résistif , ledit élément étant associé à une plaque support solidaire du bâti, et d'autre part au moins une plaque de rayonnement formant la façade de l'appareil ladite plaque étant solidaire du bâti et montée à distance de l'élément chauffant.The present invention relates to an electric heating device, preferably a stationary station comprising a main frame in which is mounted on the one hand at least one heating element including a resistive circuit, said element being associated with a support plate integral with the frame, and on the other hand at least one radiation plate forming the front of the device, said plate being integral with the frame and mounted at a distance from the heating element.

Les appareils de chauffage électrique du type mentionné précédemment peuvent être considérés comme assurant de manière simultanée à la fois un chauffage par convection naturelle et par rayonnement à partir de la plaque de rayonnement située à l'avant de l'appareil. Un tel type d'appareil est bien connu et se compose en général d'un bâti métallique incluant au moins la face arrière de l'appareil qui est destiné à être fixé à poste fixe sur un mur d'habitation par exemple. L'élément de chauffe est constitué de manière connue en soi par une plaque en tôle émaillée sur laquelle est imprimée une piste résistive. La face avant de l'appareil est constituée en général par une grille rapportée, à distance de la tôle émaillée, sur les faces latérales du bâti. De tels appareils mettent en oeuvre des éléments résistifs haute-température de l'ordre de 350 °C au niveau de la piste résistive, et dans tous les cas supérieure à 300 ° C. Pour pouvoir satisfaire aux différentes contraintes normatives imposées sur ce type d'appareil, et en particulier pour éviter de dépasser une valeur de température limite de l'ordre de 80 à 100 ° C au niveau de la grille formant le panneau avant, il est nécessaire de créer intérieurement au bâti une convection naturelle. Ceci ne peut être obtenu qu'en ménageant une distance suffisante entre la tôle émaillée et le panneau avant. Un premier inconvénient de ce type d'appareil est donc, outre la nécessité d'avoir recours à des éléments résistifs de prix élevé, la réalisation d'appareil de chauffage de type mural, présentant une épaisseur relativement élevée de l'ordre d'au moins 70 mm. Il doit également être noté que le recours à des éléments résistifs obtenus par pistes résistives imprimées sur émail ne présente pas les garanties de sécurité nécessaires en matière d'isolation électrique. L'épaisseur importante de tels appareils est bien évidemment perçue de manière négative par l'utilisateur en raison de l'encombrement en résultant.Electric heating devices of the type mentioned above can be considered to simultaneously provide both natural convection and radiation heating from the radiation plate located at the front of the device. Such a type of device is well known and generally consists of a metal frame including at least the rear face of the device which is intended to be fixed to a fixed post on a residential wall for example. The heating element is constituted in a manner known per se by an enamelled sheet plate on which is printed a resistive track. The front face of the device generally consists of an attached grid, at a distance from the enamelled sheet, on the lateral faces of the frame. Such devices use high-temperature resistive elements of the order of 350 ° C at the level of the resistive track, and in all cases greater than 300 ° C. To be able to satisfy the various normative constraints imposed on this type of 'device, and in particular to avoid exceeding a limit temperature value of the order of 80 to 100 ° C at the grid forming the front panel, it is necessary to create internally to the frame a natural convection. This can only be obtained by leaving a sufficient distance between the enamelled sheet and the panel. before. A first drawback of this type of appliance is therefore, in addition to the need to have recourse to resistive elements of high price, the production of wall-type heating appliance, having a relatively high thickness of the order of at least minus 70 mm. It should also be noted that the use of resistive elements obtained by resistive tracks printed on enamel does not provide the necessary safety guarantees in terms of electrical insulation. The large thickness of such devices is obviously perceived negatively by the user due to the resulting bulk.

Il a déjà été proposé pour tenter de résoudre le problème de l'échauffement important de la grille extérieure des appareils décrits précédemment, de remplacer cette dernière par un matériau d'effuvisité thermique plus faible, par exemple à base de verre. Cependant pour maintenir une puissance de chauffe sensiblement équivalente il s'est avéré nécessaire d'inclure dans cette même plaque de verre un élément résistif additionnel sérigraphié. En outre il n'est pas inutile de remarquer que le recours à une plaque de verre pourvue d'une résistance additionnelle augmente de manière sensible le coût global de tels appareils.It has already been proposed to try to solve the problem of the significant heating of the external grid of the devices described above, to replace the latter with a weaker thermal effuvisity material, for example based on glass. However, in order to maintain a substantially equivalent heating power, it has proved necessary to include in this same glass plate an additional screen-printed resistive element. In addition, it is worth noting that the use of a glass plate provided with an additional resistance appreciably increases the overall cost of such devices.

L'objet de la présente invention vise en conséquence à porter remède aux différents problèmes mentionnés précédemment, et à proposer un nouveau type d'appareil de chauffage électrique permettant de fournir une puissance de chauffe équivalente aux appareils traditionnels à l'aide d'éléments chauffants basse température, tout en étant d'un encombrement, et en particulier d'une épaisseur réduite.The object of the present invention therefore aims to remedy the various problems mentioned above, and to propose a new type of electric heating appliance making it possible to provide heating power equivalent to traditional appliances using heating elements. low temperature, while being compact, and in particular of reduced thickness.

Un autre objet de l'invention est de proposer un appareil de chauffage électrique dans lequel l'isolation électrique des éléments chauffants est améliorée.Another object of the invention is to provide an electric heating device in which the electrical insulation of the heating elements is improved.

Un objet complémentaire de l'invention est de proposer un appareil de chauffage électrique privilégiant le chauffage par rayonnement au détriment du chauffage par convection.An additional object of the invention is to provide an electric heating device favoring the radiant heating at the expense of convection heating.

Les objets assignés à l'invention sont atteints à l'aide d'un appareil de chauffage électrique comprenant un bâti principal dans lequel est monté d'une part au moins un élément chauffant incluant un circuit résistif ledit élément étant associé à une plaque support solidaire du bâti et d'autre part au moins une plaque de rayonnement formant une façade de l'appareil solidaire du bâti 1 et montée à distance de l'élément chauffant caractérisé en ce que l'élément chauffant est constitué d'un élément chauffant plat basse température à structure sandwich ladite structure étant isolée électriquement, de préférence sur ses deux faces par des films isolants et collée par une face sur un côté de la plaque support, l'autre côté de la plaque étant pourvu d'un élément dissipateur thermique.The objects assigned to the invention are achieved using an electric heating device comprising a main frame in which is mounted on the one hand at least one heating element including a resistive circuit, said element being associated with an integral support plate of the frame and on the other hand at least one radiation plate forming a facade of the device integral with the frame 1 and mounted at a distance from the heating element characterized in that the heating element consists of a low flat heating element sandwich structure temperature said structure being electrically insulated, preferably on its two faces by insulating films and bonded by one face on one side of the support plate, the other side of the plate being provided with a heat sink element.

D'autres particularités et avantages de l'invention apparaîtront et ressortiront plus en détail à partir de la description faite ci-après, en référence aux dessins annexés donnés à titre d'exemples illustratifs et non limitatifs dans lesquels :

  • La figure 1 représente selon une vue en perspective un appareil de chauffage électrique conforme à l'invention.
  • La figure 2 représente selon une vue en coupe transversale partielle un appareil de chauffage électrique conforme à l'invention et correspondant à la variante montrée à la figure 1.
  • La figure 3 montre selon une vue en coupe transversale partielle une autre variante de réalisation d'un appareil de chauffage électrique conforme à l'invention.
Other features and advantages of the invention will become apparent and will emerge in more detail from the description given below, with reference to the appended drawings given by way of illustrative and nonlimiting examples in which:
  • Figure 1 shows a perspective view of an electric heater according to the invention.
  • FIG. 2 represents, in a partial cross-sectional view, an electric heating device according to the invention and corresponding to the variant shown in FIG. 1.
  • Figure 3 shows in a partial cross-sectional view another alternative embodiment of an electric heating device according to the invention.

L'appareil de chauffage électrique conforme à l'invention montré à la figure 1 comprend un bâti principal 1, par exemple métallique, destiné à former l'ossature générale de l'appareil. Dans la version préférentielle de l'invention telle que montrée aux figures 1 à 3, l'appareil de chauffage conforme à l'invention est un appareil à poste fixe destiné par exemple à être fixé sur ou contre une cloison d'habitation. A cet effet le bâti 1 comprend un panneau arrière 2 par lequel l'appareil peut être fixé sur une cloison. Avantageusement, le bâti 1 est de forme sensiblement rectangulaire et est pourvu d'une bordure périphérique définissant deux bordures latérales 3, une bordure supérieure 4 et une bordure inférieure 5.The electric heater according to the invention shown in Figure 1 comprises a main frame 1, for example metallic, intended to form the general framework of the device. In the preferred version of the invention as shown in Figures 1 to 3, the heating device according to the invention is a stationary device intended for example to be fixed on or against a residential wall. To this end, the frame 1 comprises a rear panel 2 by which the device can be fixed to a partition. Advantageously, the frame 1 is of substantially rectangular shape and is provided with a peripheral border defining two lateral borders 3, an upper border 4 and a lower border 5.

Selon une première caractéristique de l'invention, l'appareil de chauffage est pourvu d'un élément chauffant 10 basse température. Sous le terme "élément chauffant basse température" il convient d'entendre dans le domaine technique considéré, des éléments chauffant incluant des éléments résisitifs dont la température de chauffe n'est pas supérieure à 300 °C et de préférence ne dépasse pas 250 °C, la plage idéale de chauffe étant de l'ordre de 210 à 222 °C. Dans le cadre de l'invention, l'élément chauffant 10 est un élément chauffant plat à structure sandwich du type de celle décrite dans la demande de brevet français n° 9200970 ou dans la demande de brevet européen correspondante EP-A-93420028-8 dont les descriptions sont ici considérées comme incorporées dans le texte de la présente demande. L'élément chauffant 10 utilisé de manière préférentielle dans le cadre de la présente invention comporte donc une piste résistive 11 formant par exemple une série de boucles et serpentins, insérée dans une couche de matière thermoplastique telle que du PFA. La structure plane ainsi réalisée est isolée électriquement sur ses deux faces par deux films isolants tel que du polyimide. Dans la variante de réalisation montrée aux figures 1 et 2, l'élément chauffant plat 10 est collé par une face sur une plaque support 15 solidaire du bâti 1. Dans l'exemple représenté aux figures 1 et 2 l'élément chauffant 10 est collé par exemple à l'aide d'une couche de matériau thermoplastique telle que du PFA, sur le côté 15a de la plaque support 15 qui est situé en regard d'un panneau rayonnant 17 formant la façade avant de l'appareil. Le panneau rayonnant 17, s'étend sensiblement au voisinage des bordures 3, 4, 5 de manière à laisser un espace périphérique réduit 18 entre les bordures 3, 4, 5 et le panneau rayonnant 17. L'espace périphérique 18 sert à la création d'un flux naturel de chauffage par convection. Le panneau rayonnant 17 est solidaire du panneau arrière 2 par l'intermédiaire d'une série de pattes de fixation 19, ledit panneau rayonnant 17 étant monté à distance de l'élément chauffant 10. La distance de montage doit être aussi faible que possible de manière à réduire au maximum l'épaisseur totale de l'appareil, mais doit également être suffisante compte tenu du matériau constituant la panneau rayonnant 17, pour que ce dernier ne soit pas susceptible de dépasser les valeurs limites de température de surface imposées par les normes. De manière préférentielle le panneau rayonnant 17 est à base de verre, et la distance entre le panneau 17 et le plan d'extension de l'élément chauffant 10 sera de l'ordre de 12 mm. Le panneau rayonnant peut également être une plaque métallique, de préférence pourvue de perforations.According to a first characteristic of the invention, the heating device is provided with a low temperature heating element 10. Under the term "low temperature heating element" should be understood in the technical field considered, heating elements including resisitive elements whose heating temperature is not higher than 300 ° C and preferably does not exceed 250 ° C , the ideal heating range being of the order of 210 to 222 ° C. In the context of the invention, the heating element 10 is a flat heating element with a sandwich structure of the type described in French patent application No. 9200970 or in the corresponding European patent application EP-A-93420028-8 the descriptions of which are here considered to be incorporated into the text of this request. The heating element 10 preferably used in the context of the present invention therefore comprises a resistive track 11 forming for example a series of loops and coils, inserted in a layer of thermoplastic material such as PFA. The planar structure thus produced is electrically insulated on its two faces by two insulating films such as polyimide. In the alternative embodiment shown in Figures 1 and 2, the flat heating element 10 is bonded by one face to a support plate 15 secured to the frame 1. In the example shown in Figures 1 and 2 the heating element 10 is bonded for example using a layer of thermoplastic material such as PFA, on the side 15a of the support plate 15 which is located opposite a radiating panel 17 forming the front face of the device. The radiating panel 17 extends substantially in the vicinity of the borders 3, 4, 5 so as to leave a reduced peripheral space 18 between the borders 3, 4, 5 and the radiating panel 17. The peripheral space 18 is used for creation a natural flow of convection heating. The radiating panel 17 is integral with the rear panel 2 by means of a series of fixing lugs 19, said radiating panel 17 being mounted at a distance from the heating element 10. The mounting distance must be as small as possible. so as to minimize the total thickness of the device, but must also be sufficient taking into account the material constituting the radiating panel 17, so that the latter is not likely to exceed the limit values of surface temperature imposed by the standards . Preferably, the radiating panel 17 is glass-based, and the distance between the panel 17 and the extension plane of the heating element 10 will be of the order of 12 mm. The radiating panel can also be a metal plate, preferably provided with perforations.

Dans la variante de réalisation montrée aux figures 1 et 2, l'appareil de chauffage comporte un élément dissipateur thermique 20, constitué par exemple d'un panneau profilé définissant une série d'ondulations 21 formant des surfaces d'échange thermique. L'élément dissipateur thermique 20 a pour but d'induire une circulation d'air permettant d'empêcher une montée en température de l'élément chauffant trop importante pouvant conduire à son auto-destruction. Avantageusement, l'élément dissipateur thermique 20 sert à la fois d'entretoise entre le panneau arrière 2 et la plaque support 15 et de moyen de fixation de ladite plaque 15 sur le panneau arrière 2. Dans cette configuration particulière l'élément dissipateur thermique 20 est fixé, par exemple par boulonnage sur le panneau arrière 2 et également par tous moyens appropriés sur la plaque support 15.In the alternative embodiment shown in FIGS. 1 and 2, the heating device comprises a heat sink element 20, consisting for example of a profiled panel defining a series of corrugations 21 forming heat exchange surfaces. The purpose of the heat sink element 20 is to induce air circulation making it possible to prevent an excessive rise in temperature of the heating element which can lead to its self-destruction. Advantageously, the heat sink element 20 serves both as a spacer between the rear panel 2 and the support plate 15 and as a means of fixing said plate 15 to the rear panel 2. In this particular configuration, the heat sink element 20 is fixed, for example by bolting on the rear panel 2 and also by any appropriate means on the support plate 15.

Avantageusement, l'élément chauffant 10 s'étend sur une surface inférieure à la surface du panneau de rayonnement 17, et représente par exemple le tiers de la surface du panneau rayonnant 17. Dans cette configuration, l'élément chauffant 10 est disposé dans la partie inférieure de la plaque support 15.Advantageously, the heating element 10 extends over a surface less than the surface of the radiation panel 17, and represents for example one third of the surface of the radiating panel 17. In this configuration, the heating element 10 is arranged in the lower part of the support plate 15.

Dans la variante de réalisation montrée à la figure 3, l'élément chauffant 10 est collé sur le côté de la plaque support 15 qui est situé en regard du panneau arrière 2 de l'appareil. Dans cette configuration l'élément dissipateur thermique 20 s'étend entre la plaque support 15 et le panneau de rayonnement 17'. Selon une configuration de construction particulièrement avantageuse, l'élément dissipateur thermique 20 est fixé par tous moyens appropriés sur la plaque support 15 et présente une largeur hors-tout inférieur à la distance entre la plaque support 15 et le panneau rayonnant 17' de manière que les ondulations 21 s'arrêtent à distance de la surface du panneau rayonnant 17'. Selon cette variante de réalisation, la présence de l'élément dissipateur thermique 20 en regard du panneau rayonnant avant 17' permet, par création d'une convexion naturelle sur la partie avant de l'appareil, de réduire la température du panneau rayonnant 17'. Ce dernier est avantageusement constitué d'une plaque métallique, pleine, ou pourvue de perforations.In the alternative embodiment shown in FIG. 3, the heating element 10 is glued to the side of the support plate 15 which is located opposite the rear panel 2 of the device. In this configuration, the heat sink element 20 extends between the support plate 15 and the radiation panel 17 '. According to a particularly advantageous construction configuration, the heat sink element 20 is fixed by any appropriate means to the support plate 15 and has an overall width less than the distance between the support plate 15 and the radiating panel 17 'so that the corrugations 21 stop at a distance from the surface of the radiating panel 17 '. According to this alternative embodiment, the presence of the heat sink element 20 facing the front radiating panel 17 'allows, by creating a natural convection on the front part of the device, to reduce the temperature of the radiating panel 17' . The latter is advantageously constituted by a metal plate, full, or provided with perforations.

L'appareil de chauffage électrique conforme à l'invention permet en conséquence à l'aide d'éléments chauffants basse température montés en combinaison avec un élément dissipateur thermique 20, de réaliser un appareil de chauffage mixte, par convection et rayonnement, assurant des performances de chauffe équivalentes à des appareils mettant en oeuvre des éléments chauffants haute température. En outre le recours à des éléments chauffants basse température permet de réduire l'épaisseur totale de l'appareil de chauffage sans pour autant réduire les performances de chauffe ni diminuer la durée de vie globale de l'appareil. L'épaisseur hors-tout de l'appareil de chauffage conforme à l'invention est inférieure à 50 mm et de préférence comprise entre 40 et 45 mm. Il convient également de noter que le recours à des éléments chauffants basse température, ainsi que l'agencement global simplifié de l'appareil conduit en définitive à l'obtention d'un appareil de coût réduit. Enfin, l'utilisation d'éléments chauffants basse température permet de diminuer les écarts de dilatation entre les pièces de l'appareil et en conséquence de réduire fortement ou complètement les claquements sonores caractéristiques des dilatations.The electric heating device according to the invention therefore makes it possible, using low temperature heating elements mounted in combination with a heat sink element 20, to produce a mixed heating device, by convection and radiation, ensuring performance. heating equivalent to devices using high temperature heating elements. In addition, the use of low temperature heating elements makes it possible to reduce the total thickness of the heating appliance without reducing the heating performance or reducing the overall lifetime of the appliance. The overall thickness of the heater according to the invention is less than 50 mm and preferably between 40 and 45 mm. It should also be noted that the use of low temperature heating elements, as well as the simplified overall arrangement of the device ultimately leads to obtaining a device of reduced cost. Finally, the use of low temperature heating elements makes it possible to reduce the differences in expansion between the parts of the apparatus and consequently to greatly or completely reduce the sound clicks characteristic of expansions.

Claims (11)

Appareil de chauffage électrique comprenant un bâti principal (1) dans lequel est monté, d'une part au moins un élément chauffant (10) incluant un circuit résistif (11) ledit élément (10) étant associé à une plaque support (15) solidaire du bâti (1), et d'autre part au moins une plaque de rayonnement (17, 17') formant une façade de l'appareil, solidaire du bâti (1) et montée à distance de l'élément chauffant (10) caractérisé en ce que l'élément chauffant (10) est constitué d'un élément chauffant plat basse température à structure sandwich ladite structure étant isolée électriquement, de préférence sur ses deux faces par des films isolants et collée par une face sur un côté de la plaque support (15), l'autre coté de la plaque (15) étant pourvue d'un élément dissipateur thermique (20).Electric heating apparatus comprising a main frame (1) in which is mounted, on the one hand at least one heating element (10) including a resistive circuit (11) said element (10) being associated with a support plate (15) integral of the frame (1), and on the other hand at least one radiation plate (17, 17 ') forming a front of the device, integral with the frame (1) and mounted at a distance from the heating element (10) characterized in that the heating element (10) consists of a flat low temperature heating element with a sandwich structure, said structure being electrically insulated, preferably on its two faces by insulating films and bonded by one face to one side of the plate support (15), the other side of the plate (15) being provided with a heat sink element (20). Appareil selon la revendication 1 caractérisé en ce que l'élément dissipateur thermique (20) est constitué d'un panneau profilé, définissant une série d'ondulations (21) formant des surfaces d'échanges.Apparatus according to claim 1 characterized in that the heat sink element (20) consists of a profiled panel, defining a series of corrugations (21) forming exchange surfaces. Appareil selon la revendication 1 ou 2 caractérisé en ce qu'il est constitué d'un appareil à poste fixe comprenant un panneau arrière (2) de fixation formé par le bâti principal (1) et d'un panneau avant formé par la plaque de rayonnement (17).Apparatus according to claim 1 or 2 characterized in that it consists of a stationary apparatus comprising a rear panel (2) for fixing formed by the main frame (1) and a front panel formed by the plate radiation (17). Appareil selon la revendication 3 caractérisé en ce que l'élément chauffant (10) est collé sur le côté de la plaque support (15) qui est situé en regard du panneau rayonnant (17).Apparatus according to claim 3 characterized in that the heating element (10) is glued to the side of the support plate (15) which is located opposite the radiating panel (17). Appareil selon la revendication 4 caractérisé en ce que l'élément dissipateur thermique (20) sert à la fois d'entretoise entre le panneau arrière (2) et la plaque support (15) et de moyen de fixation de ladite plaque (15) sur le panneau arrière (2).Apparatus according to claim 4 characterized in that that the heat sink element (20) serves both as a spacer between the rear panel (2) and the support plate (15) and as a means of fixing said plate (15) on the rear panel (2). Appareil selon l'une des revendications 4 à 5 caractérisé en ce que le panneau rayonnant (17) est une plaque à base de verre, ou de métal préférentiellement pourvue de perforations.Apparatus according to one of claims 4 to 5 characterized in that the radiating panel (17) is a plate based on glass, or on metal, preferably provided with perforations. Appareil selon la revendication 3 caractérisé en ce que l'élément chauffant (10) est collé sur le côté de la plaque support (15) qui est situé en regard du panneau arrière (2) de fixation.Apparatus according to claim 3 characterized in that the heating element (10) is glued to the side of the support plate (15) which is situated opposite the rear fixing panel (2). Appareil selon la revendication 7 caractérisé en ce que l'élément dissipateur thermique (20) s'étend entre la plaque support (15) et le panneau de rayonnement (17') et à distance de ce dernier.Apparatus according to claim 7 characterized in that the heat sink element (20) extends between the support plate (15) and the radiation panel (17 ') and at a distance from the latter. Appareil selon la revendication 7 ou la revendication 8 caractérisé en ce que le panneau de rayonnement (17') est constitué d'une plaque métallique.Apparatus according to claim 7 or claim 8 characterized in that the radiation panel (17 ') consists of a metal plate. Appareil selon l'une des revendications 1 à 9 caractérisé en ce que l'élément chauffant (10) s'étend sur une surface inférieure à la surface du panneau de rayonnement (17, 17') et est disposé dans la partie inférieure de la plaque support (15).Apparatus according to one of Claims 1 to 9, characterized in that the heating element (10) extends over a surface lower than the surface of the radiation panel (17, 17 ') and is arranged in the lower part of the support plate (15). Appareil selon l'une des revendications 1 à 10 caractérisé en ce que l'épaisseur hors-tout de l'appareil est inférieure à 50 mm et de préférence comprise entre 40 et 45 mm.Device according to one of Claims 1 to 10, characterized in that the overall thickness of the device is less than 50 mm and preferably between 40 and 45 mm.
EP19940420054 1993-02-15 1994-02-14 Electric heating apparatus of reduced thickness Expired - Lifetime EP0611922B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9301963A FR2701545B1 (en) 1993-02-15 1993-02-15 Reduced thickness electric heater.
FR9301963 1993-02-15

Publications (2)

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EP0611922A1 true EP0611922A1 (en) 1994-08-24
EP0611922B1 EP0611922B1 (en) 1997-03-19

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EP (1) EP0611922B1 (en)
DE (1) DE69402093T2 (en)
ES (1) ES2101469T3 (en)
FR (1) FR2701545B1 (en)
HK (1) HK90597A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805334A1 (en) * 2000-02-23 2001-08-24 Atlantic Industrie Sas Electrical heater has casing containing heating ducts defining vertical channels for heat radiation
EP1156283A2 (en) 2000-05-08 2001-11-21 Nobö Electro AS Panel heater for heating a room, comprising an inlay of thermal resistant and electric insulating material, mainly to be used as a distance holder
WO2002095222A1 (en) * 2001-05-18 2002-11-28 Aloys Wobben Cooling device for a wind turbine generator
WO2009063478A2 (en) * 2007-11-12 2009-05-22 H.B.N. Agencies Panel heaters
FR3032262A1 (en) * 2015-01-30 2016-08-05 Thermor Pacific THERMALLY INERTIAL AND REAGENT ELECTRIC HEATING APPARATUS WITH LOW THERMAL THICKNESS
WO2018096280A1 (en) * 2016-11-25 2018-05-31 Lancey Energy Storage Electric radiator heating device having at least one radiant heater including two screened elements with resistive bodies operating under alternating current and direct current

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2992051B1 (en) * 2012-06-14 2014-09-12 Muller & Cie Soc LOW THICK HEATING APPARATUS AND METHOD OF MOUNTING SUCH APPARATUS

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US2770704A (en) * 1951-01-31 1956-11-13 Continental Radiant Glass Heat Radiant heaters
FR1530289A (en) * 1967-07-05 1968-06-21 Electric radiator optionally switchable to radiant heating or convection heating or heating by both processes simultaneously
FR2172761A1 (en) * 1972-02-21 1973-10-05 Deleage & Fils Ets

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Publication number Priority date Publication date Assignee Title
US2770704A (en) * 1951-01-31 1956-11-13 Continental Radiant Glass Heat Radiant heaters
FR1530289A (en) * 1967-07-05 1968-06-21 Electric radiator optionally switchable to radiant heating or convection heating or heating by both processes simultaneously
FR2172761A1 (en) * 1972-02-21 1973-10-05 Deleage & Fils Ets

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805334A1 (en) * 2000-02-23 2001-08-24 Atlantic Industrie Sas Electrical heater has casing containing heating ducts defining vertical channels for heat radiation
EP1156283A2 (en) 2000-05-08 2001-11-21 Nobö Electro AS Panel heater for heating a room, comprising an inlay of thermal resistant and electric insulating material, mainly to be used as a distance holder
WO2002095222A1 (en) * 2001-05-18 2002-11-28 Aloys Wobben Cooling device for a wind turbine generator
CN1321267C (en) * 2001-05-18 2007-06-13 阿洛伊斯·沃本 Cooling device for a wind turbine generator
WO2009063478A2 (en) * 2007-11-12 2009-05-22 H.B.N. Agencies Panel heaters
WO2009063478A3 (en) * 2007-11-12 2010-09-30 H.B.N. Agencies Panel heaters
AU2008322217B2 (en) * 2007-11-12 2012-07-12 H.B.N. Agencies Panel heaters
FR3032262A1 (en) * 2015-01-30 2016-08-05 Thermor Pacific THERMALLY INERTIAL AND REAGENT ELECTRIC HEATING APPARATUS WITH LOW THERMAL THICKNESS
WO2018096280A1 (en) * 2016-11-25 2018-05-31 Lancey Energy Storage Electric radiator heating device having at least one radiant heater including two screened elements with resistive bodies operating under alternating current and direct current
FR3059512A1 (en) * 2016-11-25 2018-06-01 Lancey Energy Storage ELECTRIC RADIATOR-TYPE HEATING APPARATUS HAVING AT LEAST ONE RADIANT HEATING BODY INCORPORATING TWO SHUTTERED RESISTIVE BODY COMPONENTS OPERATING UNDER ALTERNATIVE CURRENT AND UNDER CURRENT CONTINUOUS
CN109997411A (en) * 2016-11-25 2019-07-09 兰西蓄能简易股份有限公司 Electric radiation type heating equipment at least one radiant heating body comprising the two kinds of resistor body shielding elements to work under alternating current and under DC current
AU2017364275B2 (en) * 2016-11-25 2019-08-15 Lancey Energy Storage Electric radiator heating device having at least one radiant heater including two screened elements with resistive bodies operating under alternating current and direct current

Also Published As

Publication number Publication date
FR2701545B1 (en) 1995-04-21
DE69402093D1 (en) 1997-04-24
FR2701545A1 (en) 1994-08-19
EP0611922B1 (en) 1997-03-19
HK90597A (en) 1997-08-01
ES2101469T3 (en) 1997-07-01
DE69402093T2 (en) 1997-08-28

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