FR2642929A1 - Heated modular ceiling panel and associated heated modular ceiling - Google Patents

Heated modular ceiling panel and associated heated modular ceiling Download PDF

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Publication number
FR2642929A1
FR2642929A1 FR8817099A FR8817099A FR2642929A1 FR 2642929 A1 FR2642929 A1 FR 2642929A1 FR 8817099 A FR8817099 A FR 8817099A FR 8817099 A FR8817099 A FR 8817099A FR 2642929 A1 FR2642929 A1 FR 2642929A1
Authority
FR
France
Prior art keywords
panel
surface sheet
heating element
modular ceiling
panels
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
FR8817099A
Other languages
French (fr)
Other versions
FR2642929B1 (en
Inventor
Thomas Gilmour Graham
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.)
Thermaflex Ltd
Original Assignee
Thermaflex Ltd
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 Thermaflex Ltd filed Critical Thermaflex Ltd
Priority to FR8817099A priority Critical patent/FR2642929B1/en
Publication of FR2642929A1 publication Critical patent/FR2642929A1/en
Application granted granted Critical
Publication of FR2642929B1 publication Critical patent/FR2642929B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—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
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
    • 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
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • 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
    • H05B2203/013—Heaters using resistive films or coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)

Abstract

The invention relates to a heating panel for modular ceiling. The panel comprises a plane electrical heating element 12 interposed between a layer 14 of thermally insulating material and a surface sheet 16; the panel is provided with adhesive layers 18, 20 for the two sides of the heating element 12 so as to ensure its fixing to the insulating layer 14 and the surface sheet 16; the insulating layer 14 is preferably formed of mineral fibres and the surface sheet 16 is formed of a woven glass ply which is provided with a decorative finish during manufacture; the current supply is effected by way of wires 20 and connectors. Application to the production of ceilings for office buildings and workshops.

Description

La présente invention concerne des systèmes de chauffage d'environnement utilisant des panneaux chauffés dans des surfaces intérieures de bâtiments. The present invention relates to environment heating systems using heated panels in interior surfaces of buildings.

Sn particulier l'invention concerne des panneaux de ce genre utilisables dans des plafonds suspendus. Sn particular the invention relates to panels of this kind usable in suspended ceilings.

Des panneaux du type utilisé pour former des plafonds chauffés suspendus peuvent comprendre un élément de chauffage électrique plan qui est interposé entre une ouche de matière thermiquement isolante et une feuille superficielle d'un panneau. En service, la chaleur engendrée par l'élément est rayonnée au travers de la matière de la feuille superficielle du panneau, I1 est connu que des systemes de chauffage par rayonnement de ce type peuvent être aisément con mandés et sont plus économiques que des systèmes de chauffage par convection classiques. On a également constaté que de tels systèmes de chauffage par rayonnement assurent une distribution de température plus uniforme en service. Panels of the type used to form heated suspended ceilings may include a planar electric heating element which is interposed between a sheet of thermally insulating material and a surface sheet of a panel. In use, the heat generated by the element is radiated through the material of the surface sheet of the panel. It is known that radiant heating systems of this type can be easily controlled and are more economical than conventional convection heating. It has also been found that such radiant heating systems provide a more uniform temperature distribution in service.

Bien que de tels systèmes fournissent un moyen plus adaptable et plus économique de chauffage d'une pièce que, par exemple, un système de chauffage par convection standard, le coût et la complexité d'installation ont empêché par le passé leur large utilisation. Although such systems provide a more adaptable and economical means of heating a room than, for example, a standard convection heating system, the cost and complexity of installation have prevented their widespread use in the past.

Conformément à la présente invention, il est proposé un panneau utilisable dans un plafond modulaire chauffé, le panneau comprenant un élément de chauffage électrique plan interposé entre une couche de matière thermiquement isolante et une feuille superficielle de panneau, caractérisé en ce que la feuille superficielle est pourvue d'un fini décoratif sur sa face qui est visible lorsque le panneau est installé dans une position de service. According to the present invention, there is provided a panel usable in a heated modular ceiling, the panel comprising a planar electric heating element interposed between a layer of thermally insulating material and a surface sheet of panel, characterized in that the surface sheet is with a decorative finish on its face which is visible when the panel is installed in a service position.

Des panneaux conformes à la présente invention
peuvent être fabriqués en utilisant un bloc prédécoupé de
matière isolante comme de la laine de roche, des fibres
minérales ou d'autres compositions de mousses synthéti
ques. Un dépôt uniforme d'un système adhésif approprié
à base de matières organiques est effectué sur l'ensemble
du bloc, et l'élément de chauffage électrique plan est
placé dessus. Les câbles d'alimentation électrique de
l'élément chauffant sont poussés au travers du bloc de
matière isolante vers sa partie arrière, et sont pourvus
de préférence de connecteurs appropriés en vue de faciliter la connexion électrique quand le panneau est installé. Un autre dépôt du système adhésif est effectué sur 1 'élément chauffant avant que la feuille superficielle du panneau soit fixée sur le haut de ce dernier.Panels according to the present invention
can be made using a pre-cut block of
insulating material such as rock wool, fibers
mineral or other synthetic foam compositions
ques. Uniform deposition of a suitable adhesive system
based on organic matter is carried out on the whole
of the block, and the flat electric heating element is
placed on it. The power cables of
the heating element are pushed through the block of
insulating material towards its rear part, and are provided
preferably suitable connectors to facilitate electrical connection when the panel is installed. Another deposition of the adhesive system is carried out on the heating element before the surface sheet of the panel is fixed to the top of the latter.

Cette feuille superficielle peut être constituée d'une nappe de verre tissé appliquée oentre la partie supérieure de l'élément chauffantavecdes couches d'adhésif, ou bien elle peut être formée de toute autre matière appropriée. Une décoration de la face peut être réalisée par revêtement, impression, peinture ou par un autre procédé de finition, et cette opération est de préférence effectuée pendant la fabrication du panneau. This surface sheet may consist of a sheet of woven glass applied between the upper part of the heating element with layers of adhesive, or it may be formed of any other suitable material. A decoration of the face can be carried out by coating, printing, painting or by another finishing process, and this operation is preferably carried out during the manufacture of the panel.

L'invention a également pour objet un plafond chauffé modulaire, comprenant un certain nombre de panneaux du type précité, et éventuellement aussi des panneaux sans élément de chauffage électrique. The invention also relates to a modular heated ceiling, comprising a number of panels of the aforementioned type, and possibly also panels without an electric heating element.

D'autres caractéristiques et avantages de l'invent ion seront mis évidence dans la suite de la description, donnée à titre d'exemple non limitatif, en référence aux dessins annexés dans lesquels - la figure 1 est une vue en coupe partielle d'un panneau chauffant conforme à l'invention t et - la figure 2 est une vue en perspective, en partie arrachée, du panneau chauffant de la figure t.  Other characteristics and advantages of the invention will be highlighted in the following description, given by way of non-limiting example, with reference to the accompanying drawings in which - Figure 1 is a partial sectional view of a heating panel according to the invention t and - Figure 2 is a perspective view, partially broken away, of the heating panel of Figure t.

Sur les figures 1 et 2 est représenté un panneau 10 utilisable dans un plafond chauffé. te panneau 10 comprend un élément plan de chauffage 12
interposé entre un bloc thermiquement isolant 14 et une
feuille extérieure ou superficielle 16.In Figures 1 and 2 is shown a panel 10 usable in a heated ceiling. panel 10 includes a heating element 12
interposed between a thermally insulating block 14 and a
outer or surface sheet 16.

L'élénent chauffant 12 peut etre de tout type a?prow mais il est préférable qu'il soit du type forné par impression d'une encre résistive conductrice sur une feuille d'un film de matière plastique, par exemple du terephtalate de polyéthylène, et qu'il soit appliqué contre une autre couche diélectrique d'une composition sem lable. Le bloc isolant 14 est constitué d'une matière thermiquement isolante appropriée pour être utilisée pour l'isolation de bâtiments, par exemple de la laine de roche. The heating element 12 can be of any type, but it is preferable for it to be of the type formed by printing a conductive resistive ink on a sheet of a plastic film, for example polyethylene terephthalate, and that it is applied against another dielectric layer of a sem lable composition. The insulating block 14 consists of a thermally insulating material suitable for use in the insulation of buildings, for example rock wool.

L'élément chauffant 12 est fixé sur le bloc isolant 14 par une première couche 18 d'un système adhésif a base de matières organiques. Un câble 20 d'alimentation en courant électrique, relié à l'élément chauffant 12, est poussé au travers du bloc isolant 14 en vue d'une connexion ultérieure avec une alimentation e courant appropriée. La face de l'élément chauffant 12 qui est opposée au bloc isolant 14 est ensuite recouverte d'une seconde couche 22 du système adhésif, qui s'étend au delà des bords de l'élément chauffant 12, sensiblement jusqu'au bord du bloc isolant 14. La feuille superficielle 16 est ensuite appliquée sur la face supérieure de la seconde couche d'adhésif 22 pour compléter la construction. La feuille superficielle 16 et le bloc isolant 14 sont représentés comme ayant une forme rectangulaire.Dans une autre réalisation, ils peuvent avoir toute forme géométrique régulière, bien qu'il soit préférable dadopter une forme permettant une disposition des panneaux en mosaïque. The heating element 12 is fixed to the insulating block 14 by a first layer 18 of an adhesive system based on organic materials. An electric current supply cable 20, connected to the heating element 12, is pushed through the insulating block 14 for later connection with an appropriate current supply. The face of the heating element 12 which is opposite to the insulating block 14 is then covered with a second layer 22 of the adhesive system, which extends beyond the edges of the heating element 12, substantially to the edge of the block insulator 14. The surface sheet 16 is then applied to the upper face of the second layer of adhesive 22 to complete the construction. The surface sheet 16 and the insulating block 14 are shown as having a rectangular shape. In another embodiment, they may have any regular geometric shape, although it is preferable to adopt a shape allowing an arrangement of the mosaic panels.

La feuille superficielle 16 est constituée d'une matière qui ne soit pas affectée par la chaleur engendrée par l'élément chauffant 12, mais qui soit également capable de porter un fini décoratif de telle sorte qu'aucune autre finition ne soit nécessaire.  The surface sheet 16 is made of a material which is not affected by the heat generated by the heating element 12, but which is also capable of carrying a decorative finish so that no other finish is necessary.

Une ratière approprisc est une nappe de verre tissez qui peut être moulée ou gaufrée1 ou autrement texturée, pour former un fini décoratif éventuellement nécessai re
Une décoration de la feuille superficielle 15 du panneau 10 peut être réalisée par revêtement, par impression, par peinture ou par tout autre procédé de finition. Cela peut être réalisé soit pendant le processus de fabrication soit lorsque les panneaux sont placés in situ en vue d'une adaptation à des spécifications, impératifs ou règlements intérieurs spécifiques.A suitable dobby is a woven glass sheet that can be molded or embossed1 or otherwise textured, to form a decorative finish that may be necessary.
A decoration of the surface sheet 15 of the panel 10 can be carried out by coating, by printing, by painting or by any other finishing process. This can be done either during the manufacturing process or when the panels are placed in situ for adaptation to specific specifications, requirements or internal regulations.

Le système adhésif à base dé matières organiques qui est utilisé pour la fixation des composants du panneau 10 possède une bonne conductibilité thermique et confère de bonnes caractéristiques de transnission de chaleur à la feuille superficielle 16. Cela a pour effet de réduire au minimum les pertes calorifi ques à l'intérieur du panneau 10 et d'augmenter l'efficacité du système. Le système adhésif possède également des propriétés a'isolation électrique qui sont utilisées en faisant en sorte que les couches d'adhésif 1S, 22 enveloppent complètement l'élément chauffant 12. The adhesive system based on organic materials which is used for fixing the components of the panel 10 has good thermal conductivity and gives good characteristics of heat transfer to the surface sheet 16. This has the effect of minimizing the heat losses. inside the panel 10 and increase the efficiency of the system. The adhesive system also has electrical insulation properties which are used by making the adhesive layers 15, 22 completely envelop the heating element 12.

Les panneaux peuvent être installés en combinaison avec d'autres panneaux se composant seulement d'un bloc d'isolation thermique 14 et d'une feuille superficielle 16, les panneaux étant maintenus a5se"'ôlés par une seule couche d'adhésif. Ces panneaux non chauffants peuvent être utilisés pour régler les niveaux de dissipation d'énergie d'un plafond chauffé modulaire terminé, à condition seulement de prévoir une isolation dans des zones où il faut moins de chauffage. The panels can be installed in combination with other panels consisting only of a thermal insulation block 14 and a surface sheet 16, the panels being held together by a single layer of adhesive. Non-heaters can be used to adjust the energy dissipation levels of a finished modular heated ceiling, provided only that insulation is provided in areas where less heating is required.

On se rend compte qu'un plafond modulaire utilisant des panneaux conformes à la présente invention est dune installation simple et constituera un système de chauffage économique et pouvant être commande. Bien que l'invention ait été décrite en relation avec -des panneaux utilisables dans un plafond modulaire suspendu, il va de soi quelle n'est pas limitée à de telles applications.  We realize that a modular ceiling using panels according to the present invention is simple to install and will constitute an economical and controllable heating system. Although the invention has been described in relation to panels usable in a modular suspended ceiling, it goes without saying that it is not limited to such applications.

Claims (5)

REVENDICATIONS 1. Panneau utilisable dans un plafond chauffe modulaire, ce panneau comprenant un élément de chauffage électrique plan Interposé entre une couche de matiez t:ermiquenent isolante et une feuille superficielle du panneau, caractérisé en ce que la feuille superficielle (1G) est pourvue d'un fini décoratif sur sa face qui est visible lorsque le panneau (10) est installé dans une position de service.1. Panel usable in a modular heated ceiling, this panel comprising a flat electric heating element Interposed between a layer of insulating material and a surface sheet of the panel, characterized in that the surface sheet (1G) is provided with a decorative finish on its face which is visible when the panel (10) is installed in a service position. 2. Panneau selon la revendication 1, dans lequel il est prévu une couche de matière adhésive (18) s'étendant de manière à couvrir la totalité des deux faces de l'élément chauffant (12) ; l'élément chauffant (12 > , la matière thermiquement isolante (14) et la feuille superficielle (16) du panneau (10) étant en outre maintenus assemblés sous forme d'un ensemble unitaire avec l'élément chauffant (12) en bon contact thermique avec la feuille superficielle (15) du panneau (10).2. Panel according to claim 1, wherein there is provided a layer of adhesive material (18) extending so as to cover all of the two faces of the heating element (12); the heating element (12>, the thermally insulating material (14) and the surface sheet (16) of the panel (10) being also kept assembled in the form of a unitary assembly with the heating element (12) in good contact thermal with the surface sheet (15) of the panel (10). 3. Panneau selon une des revendications 1 ou 2, caractérisé en ce que la feuille superficielle (16) du panneau est formée d'une nappe de verre tissé. 3. Panel according to one of claims 1 or 2, characterized in that the surface sheet (16) of the panel is formed of a sheet of woven glass. 4. Plafond chauffé modulaire, caractérisé en ce qu'il comprend un certain nombre de panneaux (10) conformes à une quelconque des revendications I à 3.4. Modular heated ceiling, characterized in that it comprises a number of panels (10) according to any one of claims I to 3. 5. Plafond chauffé modulaire selon la reven i- cation 4 caractérisé en ce qu'il comprend également un certain nombre de panneaux (10) réalisés sans un élément de chauffage électrique (12). 5. Modular heated ceiling according to Reven cation 4 characterized in that it also includes a number of panels (10) made without an electric heating element (12).
FR8817099A 1988-12-23 1988-12-23 MODULAR HEATED CEILING PANEL, AND RELATED MODULAR HEATED CEILING Expired - Fee Related FR2642929B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8817099A FR2642929B1 (en) 1988-12-23 1988-12-23 MODULAR HEATED CEILING PANEL, AND RELATED MODULAR HEATED CEILING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8817099A FR2642929B1 (en) 1988-12-23 1988-12-23 MODULAR HEATED CEILING PANEL, AND RELATED MODULAR HEATED CEILING

Publications (2)

Publication Number Publication Date
FR2642929A1 true FR2642929A1 (en) 1990-08-10
FR2642929B1 FR2642929B1 (en) 1993-10-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6067404A (en) * 1997-11-20 2000-05-23 Ceramaspeed Limited Radiant electric heater with fabric covering sheet
US6552310B1 (en) 1998-10-14 2003-04-22 Raychem Hts Nordic Ab Heating cable mat and method for manufacturing a heating cable mat
EP1429080A1 (en) * 2001-09-20 2004-06-16 Nippon Oil Corporation LOW TEMPERATURE BURN PREVENTING ELECTRIC FLOOR HEATING SYSTEM, ELECTRIC FLOOR HEATING PANEL, FLOOR HEATING FLOOR MATERIAL, AND ELECTRIC FLOOR HEATING DEVICE
WO2009050276A1 (en) * 2007-10-17 2009-04-23 Freelight Aps A ceiling panel system
WO2013030048A1 (en) * 2011-08-30 2013-03-07 Webasto SE Electrical heating unit, heating device for a vehicle and method for producing a heating unit
US8816251B2 (en) 2005-12-23 2014-08-26 Danfoss A/S Heating or cooling mat

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Publication number Priority date Publication date Assignee Title
US2540295A (en) * 1947-10-25 1951-02-06 Us Rubber Co Electrical heating panel
US3020379A (en) * 1959-09-21 1962-02-06 Arvin Ind Inc Electric heating panel
BE664979A (en) * 1964-06-04 1965-12-06
US3584198A (en) * 1968-02-29 1971-06-08 Matsushita Electric Works Ltd Flexible electric surface heater
US3603764A (en) * 1969-09-11 1971-09-07 Hugh Martin Electric heating panel
FR2518712A1 (en) * 1981-12-18 1983-06-24 Sodifrance Room heater using radiation from ceiling - has panels comprising ceiling sections with heater film and insulating layer
EP0116788A1 (en) * 1982-12-27 1984-08-29 D.B.M. London Company Limited Heating and insulating element
US4471212A (en) * 1981-12-21 1984-09-11 Armstrong World Industries, Inc. Light weight thin buckle-resistant ceiling heating panel
WO1985003402A1 (en) * 1984-01-20 1985-08-01 Vitronics Corporation Infrared panel emitter and method of producing the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540295A (en) * 1947-10-25 1951-02-06 Us Rubber Co Electrical heating panel
US3020379A (en) * 1959-09-21 1962-02-06 Arvin Ind Inc Electric heating panel
BE664979A (en) * 1964-06-04 1965-12-06
US3584198A (en) * 1968-02-29 1971-06-08 Matsushita Electric Works Ltd Flexible electric surface heater
US3603764A (en) * 1969-09-11 1971-09-07 Hugh Martin Electric heating panel
FR2518712A1 (en) * 1981-12-18 1983-06-24 Sodifrance Room heater using radiation from ceiling - has panels comprising ceiling sections with heater film and insulating layer
US4471212A (en) * 1981-12-21 1984-09-11 Armstrong World Industries, Inc. Light weight thin buckle-resistant ceiling heating panel
EP0116788A1 (en) * 1982-12-27 1984-08-29 D.B.M. London Company Limited Heating and insulating element
WO1985003402A1 (en) * 1984-01-20 1985-08-01 Vitronics Corporation Infrared panel emitter and method of producing the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6067404A (en) * 1997-11-20 2000-05-23 Ceramaspeed Limited Radiant electric heater with fabric covering sheet
US6552310B1 (en) 1998-10-14 2003-04-22 Raychem Hts Nordic Ab Heating cable mat and method for manufacturing a heating cable mat
EP1429080A1 (en) * 2001-09-20 2004-06-16 Nippon Oil Corporation LOW TEMPERATURE BURN PREVENTING ELECTRIC FLOOR HEATING SYSTEM, ELECTRIC FLOOR HEATING PANEL, FLOOR HEATING FLOOR MATERIAL, AND ELECTRIC FLOOR HEATING DEVICE
EP1429080A4 (en) * 2001-09-20 2004-11-17 Nippon Oil Corp Low temperature burn preventing electric floor heating system, electric floor heating panel, floor heating floor material, and electric floor heating device
US8816251B2 (en) 2005-12-23 2014-08-26 Danfoss A/S Heating or cooling mat
WO2009050276A1 (en) * 2007-10-17 2009-04-23 Freelight Aps A ceiling panel system
EP2055849A1 (en) * 2007-11-05 2009-05-06 Freelight ApS A ceiling panel system
WO2013030048A1 (en) * 2011-08-30 2013-03-07 Webasto SE Electrical heating unit, heating device for a vehicle and method for producing a heating unit
US9375993B2 (en) 2011-08-30 2016-06-28 Webasto SE Electrical heating unit, heating device for a vehicle and method for producing a heating unit
JP2016129136A (en) * 2011-08-30 2016-07-14 ベバスト エスエー Electrical heating unit, heating device for vehicle and method for producing heating unit

Also Published As

Publication number Publication date
FR2642929B1 (en) 1993-10-15

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