EP3296643A1 - Elektrisches strahlungs- und konvektionsheizgerät - Google Patents

Elektrisches strahlungs- und konvektionsheizgerät Download PDF

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Publication number
EP3296643A1
EP3296643A1 EP17191759.4A EP17191759A EP3296643A1 EP 3296643 A1 EP3296643 A1 EP 3296643A1 EP 17191759 A EP17191759 A EP 17191759A EP 3296643 A1 EP3296643 A1 EP 3296643A1
Authority
EP
European Patent Office
Prior art keywords
substrate
support wall
glass
wall
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.)
Granted
Application number
EP17191759.4A
Other languages
English (en)
French (fr)
Other versions
EP3296643B1 (de
Inventor
Marina BARLET
Richard Wolff
Edouard JOINVILLE
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.)
Saint Gobain Glass France SAS
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3296643A1 publication Critical patent/EP3296643A1/de
Application granted granted Critical
Publication of EP3296643B1 publication Critical patent/EP3296643B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F24C7/06—Arrangement or mounting of electric heating elements
    • F24C7/062—Arrangement or mounting of electric heating elements on stoves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply

Definitions

  • the invention relates to an electric heating device providing energy dissipation at least by radiation and convection, comprising at least one glass or glass-ceramic wall constituting a heating body.
  • the invention will be more particularly described with regard to an electric heating device for a dwelling.
  • the radiant panels or heating body thus consist of glass substrates having on one of their faces, a thin-film (nanometric) type electroconductive coating of metal oxides or a heating resistor film.
  • a heating system proposed from a heated glass wall comprises a metal honeycomb grid which is spaced apart from the glass wall.
  • the power is mainly dissipated by radiation, while a part is dissipated by convection due to the air confined between the glass wall and the metal grid.
  • the object of the invention is therefore to propose a heating device whose heating body consists of a glass substrate coated with an electrical resistance, which does not have the drawbacks of the prior art, and provides radiation heating. and convection while possessing thermal inertia.
  • the electrical electric heating device comprises a first glass or glass-ceramic substrate provided on one of its faces with a Joule heating element (the substrate constituting a heating element as such).
  • a support wall adapted to carry the first substrate while providing a space between said first substrate and the support wall, the heating element being arranged on the face of the first substrate disposed opposite the support wall, and a second glass or glass-ceramic substrate, devoid of Joule heating element, the second substrate forming the front of the device and being disposed opposite the support wall and at a distance from the first substrate.
  • the second glass substrate is fully electrically insulating.
  • the heating device provides heating not only by radiation (from the first substrate and through the second substrate) and convection (spaced between the wall and the first glass substrate and between the two glass substrates) but also has thermal inertia, the second facade glass substrate storing energy that is redistributed when the radiator is cut.
  • the facade glass structure is insulating and thus shields the substrate with the heating resistor, avoiding access to the heating body.
  • this facade glass substrate brings aesthetics to the radiator by the very nature of the material, the glass, and by the shaping and design that can be applied to it, such as screen-printed patterns, a colored glass, etc. .
  • the heater is radiative, convective and thermal inertia.
  • the spaces between the support wall and the first glass substrate and between the two glass substrates allow to dissipate more energy without exceeding the temperature values defined by standards such as the NF EN60335-1 standard with regard to the permissible surface temperatures for a heating element.
  • the second substrate has a thickness greater than that of the first glass substrate, in particular between 5 and 15 mm, such as 6, 8 or 12 mm.
  • the first and second substrates are parallel and are spaced apart by a distance of between 10 and 20 mm, such as of the order of 15 mm.
  • the space between the support wall (face of the wall parallel to the substrate) and the first substrate is preferably between 5 and 40 mm, in particular of the order of 15 mm.
  • the support wall has on its periphery four peripheral edges which project to the second substrate, perpendicular or inclined with respect to the general plane of the support wall, and which encloses the space between the first and second glass substrates.
  • the upper peripheral edge comprises a multitude of holes and the lower peripheral edge comprises a aperture or apertures such that air entering through the aperture or apertures of the lower peripheral edge, passes between the first and second substrates and heats adjacent the first substrate, and rises to escape through the multitude of holes from the upper peripheral edge.
  • the support wall forms a cover, in particular a metal cover, whose peripheral edges join the second substrate, the lower and upper edges being provided respectively with at least one opening and with holes in order to respectively allow the entry of cold air from the opening and exit of hot air out of the holes, the peripheral edges preferably having a beveled shape so that the cover is not visible when the radiator is seen from the front.
  • the support wall plays the roles of supporting the two glass substrates, protecting the electrical elements and accentuating the convective component of the heating.
  • the support wall comprises means for fixing the first substrate, which is preferably removably assembled to said support wall, the fixing means comprising in particular on the one hand two opposite lateral guides, arranged vertically in mounted position of the device, in which the first substrate is slidably introduced, and secondly a continuous low stop or at least two low stops, against which or relies the (lower) edge of the first substrate.
  • the device comprises a removable cover which is arranged at the opening in the lower peripheral edge of the support wall of the device, the cover comprising lights facing said opening, the cover preferably further comprising at least two abutments projecting towards the inside of the device and against which the (lower) edge of the first substrate rests.
  • the support wall has on its so-called outer face, opposite to that facing the first substrate, means for fixing the device against a wall, such as notches.
  • the support wall comprises, in the extension of the peripheral edges, a peripheral return, the second substrate being attached and fixed against the peripheral return of the peripheral edges of the support wall, preferably by gluing.
  • the Joule heating element comprises an electroconductive thin layer, of the transparent metal oxide (s) type, deposited on the glass and preferably a low emissivity, or a plastic film provided with an electrical resistance and attached by gluing against the glass, the Joule effect element being designed to dissipate in particular between 2000 and 4000 W / m 2 .
  • the low emissivity layer makes it possible to direct the heat emitted by radiation towards the second facade substrate and consequently towards the room to be heated.
  • the support wall further comprises, above the upper edge of the first substrate a protective blade of the first substrate to protect the heating element, which is electrically conductive, the risk of splashing. water.
  • the first glass substrate is, for example, colorless or colored glass, of the hardened soda-lime silico-calcium type, or of the unhardened borosilicate type.
  • the second glass substrate is quenched, preferably a monolithic glass. It can be colorless or colored.
  • the outer face of this second substrate may be smooth or textured or may present patterns or aesthetic decorations for example by screen printing.
  • This face may also be coated with functional layers, in particular anti-fouling or self-cleaning layers, in particular based on photocatalytic titanium oxide.
  • the device has a generally rectangular or square shape. It has dimensions such as between 500 mm and 1800 mm, in particular between 700 mm and 1600 mm. Its thickness including the support wall and the two glass substrates is less than 50 mm.
  • the radiator is therefore very compact in thickness, aesthetic by its glass structure, while providing effective radiative and convective heating with the very advantageous combination of an inertia radiator.
  • the heating device of the invention can be used in all types of rooms, bedrooms, living rooms, bathrooms ...
  • the device according to the invention can be provided with regard to the outer face of the second substrate of at least one horizontal bar, for example for hanging towels.
  • the horizontal bar may for example be fixed by means of jaws secured to the support wall (the cover), or be directly attached to the wall or the wall against which the device is attached.
  • the device according to the invention can then be used as a towel radiator.
  • the heating element may be in a single part covering substantially the entire surface of one of the faces of the first substrate (opposite side of the support wall), except on at least the two vertical sides in a margin of 1 order for example of 10 mm, the safety standards impose 8 mm to avoid any risk of conducting electricity with the support wall when it is metallic.
  • the heating element is advantageously composed of several independent parts, for example two or three, which makes it possible to obtain different temperatures according to the zones of the first wall.
  • independent parts means distinct areas that can be electrically powered independently of one another. This characteristic is particularly advantageous in the case of a towel-drying radiator: the power distributed in the part of the heating element which is situated opposite the towel can be reduced, while the power distributed in the part of the towel Heating element that is not located next to the towel may remain the same or be increased. It is thus possible to avoid local overheating due to the presence of towels, while not penalizing the heating of the room.
  • the device preferably comprises means for regulating the electrical power as a function, for example, of the temperature of the part to be heated and / or of the first substrate provided with the heating element. It may be typically thermostatic control means.
  • the device may further comprise means for controlling or displaying the temperature and / or the electrical power.
  • the control means preferably comprise sensitive keys disposed on the outer face of the second substrate when the second substrate has a thickness of less than 12 mm, for example when it has a thickness of 6 or 8 mm.
  • sensitive keys disposed on the outer face of the second substrate when the second substrate has a thickness of less than 12 mm, for example when it has a thickness of 6 or 8 mm.
  • the wall is used as the dielectric of a capacitor.
  • the contact of a finger (the latter serving as a reinforcement of the capacitor) makes it possible to modify the capacity of the capacitor, this change being detected.
  • the control circuit is located on the side of the inner face of the second substrate.
  • the heating device 1 of the invention illustrated in the schematic figures 1 and 2 comprises a support wall 2, forming the bottom of the device and intended to allow the attachment of the device against a wall, a first glass substrate 3 having a Joule heating element 4, and a second insulating glass substrate 5.
  • the first substrate 3 endowed of the heating element 4 is said thereafter heating substrate.
  • the second substrate 5 is hereinafter referred to as a façade substrate.
  • the support wall 2 maintains in position and at a distance the heating substrate 3 and the facing substrate 5 with a spacing between the support wall 2 and the heating substrate 3 and a gap between the heating substrate 3 and the facing substrates 5.
  • the support wall 2 has an inner face 20 facing the first substrate 3 and an opposite outer face 21 intended to be applied against a wall wall.
  • the support wall 2 has on its outer face 21, opposite to that facing the first substrate, means for fixing the device against a wall, such as notches 21A ( figure 3 ).
  • the support wall 2 has a generally planar surface and four peripheral edges 22 to 25 on the periphery of this flat surface, each of the edges being inclined so that the support wall 2 forms a cover.
  • the facade substrate 5 is arranged in a lug against the end of the peripheral edges 22 to 25 at a vertical plane P.
  • the distance separating the plane of the inner face 20 of the support wall 2 and the plane P is of the order of 40 to 50 mm, defining the depth of the hood.
  • the peripheral edges 22 to 25 extend by a peripheral return 2A against which is fixed by bonding the facade substrate 5.
  • the depth of the hood is adapted to accommodate the heating substrate 3 while providing the respective spacings between the heating substrate 3, and on the one hand the support wall 2, and on the other hand the façade substrate 5.
  • the entire heating device 1 from the plane of the outer face 21 to the front plane of the facade substrate 5 presents a size such that the thickness is of the order of 55 mm in the particular example of the invention.
  • the support wall 2 comprises detachably fastening means 6 of the heating substrate 3 and fastening means 7 of the second substrate 5.
  • the fastening means 6 removably comprise two retaining slides 60 and 61 vertical and spaced from the width of the heating substrate 3, and a lower bottom stop 62 formed by a portion of the lower peripheral edge 24 of the wall 2 or preferably by a cover 62A (shown on the Figures 6a, 6b, and 7 ) removably attached, for example by screwing, at the lower peripheral edge 24 which is partially perforated along an opening 26 ( figure 4 and 5 ).
  • the cover 62A comprises two spaced apart elements projecting from the face intended to be turned towards the inside of the cover, these elements forming two low stops 62.
  • the cover furthermore comprises lights 62B allowing the air to be introduced at level of the opening 26 via these lights.
  • the heating substrate 3 is mounted in the hood by being inserted between the holding rails 60 and 61 so as to rest by its lower edge against the lower stop 62.
  • the lower edge 24 of the support wall 2 comprises the oblong opening 26 extending in length over almost the entire lower edge of the support wall 2 and having a width such that it can be facing spacing both between the two glass substrates 3 and 5 and between the heating substrate 3 and the vertical face 21 of the support wall 2.
  • the heating substrate 3 can slightly bend under the effect of heat, it can be provided ( figure 5 ) a removable tab 63 fixed on the inner face 21 of the support wall in the upper part which holds the upper edge of the heating substrate 3.
  • the upper edge 25 of the support wall 2 comprises a multitude of holes 27 which are opposite the spacing spaces between the two glass substrates and between the heating substrate and the vertical face of the support wall.
  • the air returning from the lower opening 26 is heated in the spacing spaces via the heating radiation from the heating element 4, and rises to escape through the holes 27, heating the air of the room by convection.
  • the heating element by Joule effect 4 is disposed on almost all of the so-called rear face 30 of the heating substrate 3, face facing the inner face 20 of the support wall 2.
  • Said rear face 30 of the heating substrate 3 is devoid of heating element along at least its two vertical edges in contact with the retaining slides 60 and 61, according to a margin of the order of 3.5 mm, ensuring electrical safety.
  • the arrangement of the heating element 4 turned towards the support wall 2 and the hooded shape of the wall 2 make it possible to receive the heating substrate 3 in complete safety, avoiding to the user any access to the electric heating element .
  • the heating element 4 consists of a transparent electroconductive thin film forming an electrical resistance, and advantageously constituting a low-emissivity layer so as to return a large part of the radiation towards the opposite of the layer, c that is to say towards the second substrate 5, called the facade substrate.
  • the power supply of the heating element 4 is supplied via two electrically conductive collectors, such as strips of serigraphed silver pastes extending along the two opposite vertical edges at the edge of the layer.
  • electric cables 40 are connected to the electrically conductive collectors of the heating element 4, and emerge externally to the device via the slots 62B of the lower cover 62A.
  • the device further comprises above the heating substrate 3, above its upper edge, and under and away from the perforated upper peripheral edge, a lamella 28 remotely covering the edge of the first substrate to protect the heating element that is electrically conductive, risk of splashing water.
  • the facade glass substrate 5 constitutes an electrically insulating element. It consists of a tempered monolithic glass. It has a thickness greater than that of the heating substrate. Preferably, its thickness is between 5 and 15 mm.
  • the facade substrate 5 plays a radiative role by dissipating the radiation from the heating element 4 of the heating substrate and provides a thermal inertia.
  • the thickness of the facade substrate 5 is adapted to ensure the desired thermal inertia compared to the power of the radiator, while ensuring, depending on the other dimensions of the radiator (length and width) not to be too heavy.
  • the heating device of the invention thus provides a radiator that dissipates energy by radiation, convection and inertia, while being aesthetic and compact in thickness, preferably at most 55 mm.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Central Heating Systems (AREA)
  • Surface Heating Bodies (AREA)
EP17191759.4A 2016-09-20 2017-09-19 Elektrisches strahlungs- und konvektionsheizgerät Active EP3296643B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1658830A FR3056285B1 (fr) 2016-09-20 2016-09-20 Dispositif de chauffage electrique radiatif et convectif

Publications (2)

Publication Number Publication Date
EP3296643A1 true EP3296643A1 (de) 2018-03-21
EP3296643B1 EP3296643B1 (de) 2020-09-09

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ID=57680387

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EP17191759.4A Active EP3296643B1 (de) 2016-09-20 2017-09-19 Elektrisches strahlungs- und konvektionsheizgerät

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EP (1) EP3296643B1 (de)
FR (1) FR3056285B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009800A1 (de) * 1980-03-14 1981-09-24 Bischoff Glastechnik GmbH & Co KG, 7518 Bretten Elektrischer heizkoerper zum beheizen des inneren von gebaeuden o.dgl..
JPS63156935A (ja) * 1986-12-19 1988-06-30 Matsushita Seiko Co Ltd 電気暖房機
WO1996027271A1 (fr) * 1995-03-01 1996-09-06 Compagnie Generale D'innovation Et De Developpement Cogidev Element de chauffage electrique du type par convection ou par convection et radiation
EP1030130A1 (de) * 1999-02-19 2000-08-23 Seb S.A. Handtuchtrockner mit Glasswand
EP2431669A1 (de) * 2010-09-21 2012-03-21 Vismaravetro S.r.l. Elektrisch erhitzte Platte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009800A1 (de) * 1980-03-14 1981-09-24 Bischoff Glastechnik GmbH & Co KG, 7518 Bretten Elektrischer heizkoerper zum beheizen des inneren von gebaeuden o.dgl..
JPS63156935A (ja) * 1986-12-19 1988-06-30 Matsushita Seiko Co Ltd 電気暖房機
WO1996027271A1 (fr) * 1995-03-01 1996-09-06 Compagnie Generale D'innovation Et De Developpement Cogidev Element de chauffage electrique du type par convection ou par convection et radiation
EP1030130A1 (de) * 1999-02-19 2000-08-23 Seb S.A. Handtuchtrockner mit Glasswand
EP2431669A1 (de) * 2010-09-21 2012-03-21 Vismaravetro S.r.l. Elektrisch erhitzte Platte

Also Published As

Publication number Publication date
FR3056285B1 (fr) 2019-08-02
EP3296643B1 (de) 2020-09-09
FR3056285A1 (fr) 2018-03-23

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