WO2005083332A1 - Electric radiator with a heat-conveying medium - Google Patents

Electric radiator with a heat-conveying medium Download PDF

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Publication number
WO2005083332A1
WO2005083332A1 PCT/FR2005/000161 FR2005000161W WO2005083332A1 WO 2005083332 A1 WO2005083332 A1 WO 2005083332A1 FR 2005000161 W FR2005000161 W FR 2005000161W WO 2005083332 A1 WO2005083332 A1 WO 2005083332A1
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WO
WIPO (PCT)
Prior art keywords
tubular element
radiator
panels
heat transfer
radiator according
Prior art date
Application number
PCT/FR2005/000161
Other languages
French (fr)
Inventor
Pascal Mouttot
Philippe Nicolas
Original Assignee
Zehnder Verkaufs Und Verwaltungs Ag
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Filing date
Publication date
Application filed by Zehnder Verkaufs Und Verwaltungs Ag filed Critical Zehnder Verkaufs Und Verwaltungs Ag
Publication of WO2005083332A1 publication Critical patent/WO2005083332A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • 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
    • F24H3/004—Air heaters using electric energy supply with a closed circuit for a heat transfer liquid

Definitions

  • Electric radiator with heat transfer fluid The invention relates to the field of design and production of radiators.
  • Numerous types of radiators are known in the prior art, in particular: electric radiators, which are essentially in the form of convectors; heat transfer fluid radiators intended to be integrated into a central heating system; - electric heaters with heat transfer fluid.
  • Electric heaters in the form of convectors have the advantage of not having to be connected to a fluid circulation system and therefore being relatively inexpensive to purchase. On the other hand, it also has the disadvantage of providing unpleasant dry heat and very low heating inertia. In addition, they have poor yields and involve high energy costs.
  • Heat transfer fluid radiators on the contrary have the advantage of providing pleasant heat and of allowing heating showing high inertia but have the major drawback of having to be connected to an expensive central system for circulation and heating of the heat transfer fluid.
  • the oldest heat transfer fluid radiators consist of cast iron structures delimiting a high collector, a low collector and a plurality of pipes connecting these collectors. These radiators have the major drawback of being very heavy and therefore of involving an installation cost so high that they are hardly used today. More recently, another structure of heat transfer fluid radiators has been proposed, according to which the radiator consists of a panel, or two panels mounted parallel and separated by spacers, inside which or which the fluid circulates. question.
  • Each of these panels is produced by the association of two half-bodies welded to each other and delimiting channels about 1 1 mm thick. These panels have connections, generally provided at their four corners, allowing them to be connected to a circulation network of the heat transfer fluid.
  • the fittings in question extend perpendicular to the plane of the panel (s).
  • These radiators called panel radiators in the state of their current manufacturing technique, have the advantages of involving a low manufacturing cost due to the structural simplicity, of being light and therefore very easy to install, and of allowing a good quality heating.
  • electric heaters with heat transfer fluid are autonomous in heat transfer fluid and provided with at least one electrical resistance make it possible to heat this fluid. They therefore do not need to be connected to a fluid circulation network.
  • radiators therefore combine the advantage of electric radiators since they are autonomous and that of radiators with heat-transfer fluid making it possible to provide pleasant heat.
  • One type of such radiators has two hollow tubular vertical uprights communicating with flat or tubular sleepers extending between the uprights and together defining an internal volume filled with a heat transfer fluid, at least one of the two vertical uprights incorporating an electrical resistance making it possible to heating said fluid.
  • These radiators are mainly intended to be used as towel warmers in bathrooms. Their manufacturing cost is relatively high.
  • Such electric heaters with heat transfer fluid must therefore have a structure allowing them to accommodate one or more electrical resistances. This is not the case for panel radiators of the type described above, the spacing (conventionally 11 mm) between the plates constituting the panels is much too small to accommodate conventional electrical resistance.
  • the main objective of the present invention is to propose a new type of electric heaters with heat transfer fluid.
  • the invention particularly aims to adapt this technique to panel radiators described above.
  • Another objective of the present invention is to propose electric panel radiators which do not involve a major modification of the production lines of conventional panel radiators and in particular no substantial modifications of the stations for manufacturing the panels themselves.
  • Another objective of the present invention is to provide an electric radiator with heat transfer fluid which can be used widely in any type of room, with satisfactory heating efficiency.
  • Another objective of the invention is to provide such a radiator which can be produced with dimensions and a presentation identical or close to those of certain existing radiators.
  • the invention also aims to provide such a radiator which makes it possible to obtain good heating uniformity.
  • an electric radiator with heat transfer fluid comprising at least one panel having at least one internal volume intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow lateral connections communicating with said internal volume or volumes, characterized in that it comprises at least one tubular element extending between and communicating with said lateral connections, said tubular element including electric heating means.
  • the invention provides a radiator of simple and efficient design, of the type with heat transfer fluid heated using electrical means. Such a radiator can be manufactured using existing production tools and techniques for the manufacture of panel radiators.
  • the manufacture and assembly of a tubular element incorporating electrical heating means constitute relatively inexpensive adaptations making it possible to develop a technique of radiators dedicated to central heating with a radiator technique of the electric type with heat transfer fluid. Indeed, it suffices for the installation of the tubular element to use the existing fittings on the radiators traditionally manufactured, these fittings extending perpendicular to the (x) panel (x). It is noted that the radiator according to the invention does not lead to any increase in overall dimensions compared to a traditional radiator of the same panel size. According to a preferred solution, the radiator also comprises an essentially central intermediate connection communicating with said tubular element.
  • this intermediate connector is located between a quarter and a half of the length of said tubular element.
  • said electrical means extend over a length at least greater than half the length of said tubular element, and preferably over a length at least greater than two thirds of the length of said tubular element. In this way, a satisfactory heat exchange is obtained between the electrical heating means and the heat transfer fluid, which gives the radiator good efficiency and good heating quality.
  • the radiator comprises two panels. In this way, the volume of heat transfer fluid and therefore the heating capacity of the radiator is increased.
  • said tubular element preferably occupies a middle position between said panels and communicates with each of said lower connections of said panels.
  • the tubular element is mounted between the two panels in an ergonomic and discreet manner.
  • the radiator comprises at least one upper connection connecting said internal volume or volumes of said panels. In this way, the circulation of the heat transfer fluid in the radiator is improved, and consequently the propagation of the heat in this fluid, this by a known phenomenon of thermo-siphon.
  • said panel or panels consist of the assembly of a rear half body welded to a front half body.
  • a radiator thus produced makes it possible to retain the advantages of conventional panel radiators, namely: - an essentially flat front allowing a covering of the radiator and therefore integration into the decor of the room in which it is located; sufficient rigidity preventing the radiator panel (s) from warping, this by providing, for example, one or more channels on the surface of the half-bodies.
  • said electric heating means comprise at least one resistor.
  • said electric heating means are connected to a box for regulating the electric power provided by these electric heating means.
  • Such an electrical resistance constitutes a relatively inexpensive means of electrical heating, and easy to install and fix in the tubular element.
  • the invention also relates to a tubular element intended to equip an electric radiator with heat transfer fluid, comprising at least one panel having at least one internal volume intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow connections communicating with said internal volume or volumes, characterized in that it comprises means of communication with each of said fittings and in that it includes an electrical resistance.
  • a tubular element intended to equip an electric radiator with heat transfer fluid, comprising at least one panel having at least one internal volume intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow connections communicating with said internal volume or volumes, characterized in that it comprises means of communication with each of said fittings and in that it includes an electrical resistance.
  • the principle of the invention resides in the fact of communicating a tubular element including electrical heating means with the internal volume or volumes of a panel (or several) containing a heat transfer fluid, this by through lower fittings.
  • the tubular element 1 in which an electrical resistance 2 is mounted communicates with the connections 31 provided at the base and at each end of each of the panels 3 of the radiator.
  • these connections 31 are themselves tubular elements communicating with the internal volumes of the panels 3. It is therefore understood that the internal volumes of the tubular element 1, connections 31 and panels 3 communicate with each other. This allows in particular the circulation of the heat transfer fluid (by a thermo-siphon phenomenon) from the tubular heating element 1 to the internal volumes of the panels 3, or vice versa.
  • the tubular member 1 is mounted so as to occupy a middle position between the panels 3 of the radiator.
  • the radiator comprises a central connector 32 also connecting the internal volumes of the tubular element 1 and of the panels 3.
  • the radiator comprises upper lateral connections 33 connecting the internal volumes of the panels 3, in the vicinity of the upper edge thereof.
  • the resistor 2 has a length greater than two thirds of the length of the tubular element 1, and is fixed to a nozzle 1 1 of the tubular element carrying electrical connection means 11 1
  • the panels 3 are formed by the assembly (in this case welding) of two half bodies made of stamped sheet metal, integrating vertical channels 35 forming a plurality of internal volumes and promoting the circulation of the heat transfer fluid.
  • each panel has a high collector and a low collector, connected by vertical end channels.
  • the collectors are also connected to each other by a series of vertical channels allowing the passage of the heating fluid.
  • the panels have a front half body (intended to be exposed to view) forming an essentially flat surface, and a rear half body having a wavy structure delimiting the channels leading the veins of heat transfer fluid from a collector to the other.
  • the panels 3 have, on their half body facing each other, fins 36 promoting the convection of the heat emitted by the radiator.
  • FIG. 4 provides a representation of a temperature reading at the level of different constituent parts of a radiator according to the invention, this reading being obtained using probes regularly distributed on the tubular heating element 1, on the channels 35 of the panels 3 and on the upper lateral connections 33.
  • the temperatures recorded at the level of the tubular element 1 propagate regularly upwards of the panels 3 through the channels 35, as indicated by the lines 41, 42, 43 of temperature reading.
  • the temperatures of the same line are relatively homogeneous; - the temperatures at the level of the upper fittings are homogeneous with respect to the temperatures recorded on line 43.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Central Heating Systems (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

The invention relates to a heat-conveying medium, comprising at least one panel (3) having at least one internal volume (35) used to contain the heat-conveying medium and having at least two lateral hollow connections (31) in the vicinity of the lower edge thereof communicating with the internal volume (s) (35), characterized in that it comprises at least one tubular element (1) extending between the lateral connections (31) and communicating therewith, wherein said tubular element (1) includes electric heating means (2).

Description

Radiateur électrique à fluide caloporteur. L'invention concerne le domaine de la conception et de la réalisation des radiateurs. On connaît dans l'état de la technique de nombreux types de radiateurs, notamment : les radiateurs électriques, se présentant essentiellement sous la forme de convecteurs ; les radiateurs à fluide caloporteur destinés à être intégrés dans un système de chauffage central ; - les radiateurs électriques à fluide caloporteur. Les radiateurs électriques se présentant sous forme de convecteurs présentent l'intérêt de ne pas avoir à être relié à un système de circulation de fluide et d'être donc relativement peu coûteux à l'achat. Par contre il présente aussi l'inconvénient de dispenser une chaleur sèche peu agréable et une très faible inertie de chauffage. De plus, ils présentent des rendements médiocres et impliquent des coûts énergétiques élevés. Les radiateurs à fluide caloporteur présentent au contraire l'avantage de dispenser une chaleur agréable et de permettre un chauffage montrant une forte inertie mais présentent l'inconvénient majeur de devoir être relié à un système central coûteux de circulation et de chauffage du fluide caloporteur. Les radiateurs à fluide caloporteur les plus anciens sont constitués de structures en fonte délimitant un collecteur haut, un collecteur bas et une pluralité de tuyaux reliant ces collecteurs. Ces radiateurs présentent l'inconvénient majeur d'être très lourds et donc d'impliquer un coût d'installation si élevé qu'ils ne sont aujourd'hui quasiment plus employés. Plus récemment, une autre structure de radiateurs à fluide caloporteur a été proposée, selon laquelle le radiateur est constitué d'un panneau, ou de deux panneaux montés parallèles et séparés par des entretoises, à l'intérieur du quel ou desquels circule le fluide en question. Chacun de ces panneaux est réalisé par l'association de deux demi-corps soudés l'un à l'autre et délimitant des canaux d'une épaisseur d'environ 1 1 mm. Ces panneaux présentent des raccords, généralement prévus à leurs quatre coins, permettant de les raccorder à un réseau de circulation du fluide caloporteur. Les raccords en question s'étendent perpendiculairement au plan du ou des panneaux. Ces radiateurs, dits radiateurs à panneaux dans l'état de leur technique actuelle de fabrication, présentent les avantages d'impliquer un coût de fabrication faible de par la simplicité structurelle, d'être légers et donc très faciles à installer, et de permettre un chauffage de bonne qualité. On connaît aussi dans l'état de la technique des radiateurs électriques à fluide caloporteur. Ces radiateurs sont autonomes en fluide caloporteur et pourvus d'au moins une résistance électrique permettent de chauffer ce fluide. Ils ne nécessitent donc pas d'être reliés à un réseau de circulation de fluide. Ces radiateurs allient donc l'intérêt des radiateurs électriques puisque autonomes et celui des radiateurs à fluide caloporteur permettant de dispenser une chaleur agréable. Un type de tels radiateurs présente deux montants verticaux creux tubulaires communiquant avec des traverses planes ou tubulaires s'étendant entre les montants et définissant ensemble un volume interne rempli d'un fluide caloporteur, au moins un des deux montants verticaux intégrant une résistance électrique permettant de chauffer ledit fluide. Ces radiateurs sont surtout destinés à être utilisés comme sèche-serviettes dans les salles de bain. Leur coût de fabrication est relativement élevé. De tels radiateurs électriques à fluide caloporteur doivent donc présenter une structure leur permettant d'accueillir une ou plusieurs résistances électriques. Ceci n'est pas le cas pour les radiateurs à panneaux du type décrit ci-dessus dont l'espacement (classiquement 1 1 mm) entre les plaques constituant les panneaux est beaucoup trop faible pour accueillir une résistance électrique classique. L'objectif principal de la présente invention est de proposer un nouveau type de radiateurs électriques à fluide caloporteur L'invention a notamment pour objectif d'adapter cette technique aux radiateurs à panneaux décrits ci-dessus. Un autre objectif de la présente invention est de proposer des radiateurs électriques à panneaux n'impliquant pas une modification profonde des chaînes de fabrication des radiateurs à panneaux classiques et notamment pas de modifications substantielles des postes de fabrication des panneaux eux-mêmes. Un autre objectif de la présente invention est de proposer un radiateur électrique à fluide caloporteur qui puisse être utilisé largement dans tout type de pièces, avec une efficacité de chauffage satisfaisante. Un autre objectif de l'invention est de fournir un tel radiateur qui puisse être réalisé avec des dimensions et une présentation identique ou proche de celles de certains radiateurs existants. L'invention a encore pour objectif de fournir un tel radiateur qui permette d'obtenir une bonne homogénéité de chauffage. Ces objectifs, ainsi que d'autres qui apparaîtront par la suite, sont atteints grâce à l'invention qui a pour objet un radiateur électrique à fluide caloporteur, comprenant au moins un panneau présentant au moins un volume interne destiné à contenir ledit fluide caloporteur et présentant au voisinage de son bord inférieur au moins deux raccords latéraux creux communiquant avec ledit ou lesdits volumes internes, caractérisé en ce qu'il comprend au moins un élément tubulaire s'étendant entre lesdits raccords latéraux et communiquant avec eux, ledit élément tubulaire incluant des moyens de chauffage électriques. Ainsi, l'invention propose un radiateur de conception simple et efficace, du type à fluide caloporteur chauffé à l'aide de moyens électriques. Un tel radiateur peut être fabriqué à l'aide d'outils et de techniques de production existantes pour la fabrication des radiateurs à panneaux. Aussi, la fabrication et le montage d'un élément tubulaire intégrant des moyens de chauffage électriques constituent des adaptations relativement peu coûteuses permettant de faire évoluer une technique de radiateurs dédiés au chauffage central à une technique de radiateurs du type électrique à fluide caloporteur. En effet, il suffit pour la mise en place de l'élément tubulaire d'utiliser les raccords existants sur les radiateurs fabriqués traditionnellement, ces raccords s'étendant perpendiculairement au(x) panneau(x). On note que le radiateur selon l 'invention n'entraîne aucune augmentation d'encombrement hors-tout par rapport à un radiateur traditionnel de même dimension de panneau. Selon une solution préférée, le radiateur comprend également un raccord intermédiaire essentiellement central communiquant avec ledit élément tubulaire.Electric radiator with heat transfer fluid. The invention relates to the field of design and production of radiators. Numerous types of radiators are known in the prior art, in particular: electric radiators, which are essentially in the form of convectors; heat transfer fluid radiators intended to be integrated into a central heating system; - electric heaters with heat transfer fluid. Electric heaters in the form of convectors have the advantage of not having to be connected to a fluid circulation system and therefore being relatively inexpensive to purchase. On the other hand, it also has the disadvantage of providing unpleasant dry heat and very low heating inertia. In addition, they have poor yields and involve high energy costs. Heat transfer fluid radiators on the contrary have the advantage of providing pleasant heat and of allowing heating showing high inertia but have the major drawback of having to be connected to an expensive central system for circulation and heating of the heat transfer fluid. The oldest heat transfer fluid radiators consist of cast iron structures delimiting a high collector, a low collector and a plurality of pipes connecting these collectors. These radiators have the major drawback of being very heavy and therefore of involving an installation cost so high that they are hardly used today. More recently, another structure of heat transfer fluid radiators has been proposed, according to which the radiator consists of a panel, or two panels mounted parallel and separated by spacers, inside which or which the fluid circulates. question. Each of these panels is produced by the association of two half-bodies welded to each other and delimiting channels about 1 1 mm thick. These panels have connections, generally provided at their four corners, allowing them to be connected to a circulation network of the heat transfer fluid. The fittings in question extend perpendicular to the plane of the panel (s). These radiators, called panel radiators in the state of their current manufacturing technique, have the advantages of involving a low manufacturing cost due to the structural simplicity, of being light and therefore very easy to install, and of allowing a good quality heating. Also known in the prior art are electric heaters with heat transfer fluid. These radiators are autonomous in heat transfer fluid and provided with at least one electrical resistance make it possible to heat this fluid. They therefore do not need to be connected to a fluid circulation network. These radiators therefore combine the advantage of electric radiators since they are autonomous and that of radiators with heat-transfer fluid making it possible to provide pleasant heat. One type of such radiators has two hollow tubular vertical uprights communicating with flat or tubular sleepers extending between the uprights and together defining an internal volume filled with a heat transfer fluid, at least one of the two vertical uprights incorporating an electrical resistance making it possible to heating said fluid. These radiators are mainly intended to be used as towel warmers in bathrooms. Their manufacturing cost is relatively high. Such electric heaters with heat transfer fluid must therefore have a structure allowing them to accommodate one or more electrical resistances. This is not the case for panel radiators of the type described above, the spacing (conventionally 11 mm) between the plates constituting the panels is much too small to accommodate conventional electrical resistance. The main objective of the present invention is to propose a new type of electric heaters with heat transfer fluid. The invention particularly aims to adapt this technique to panel radiators described above. Another objective of the present invention is to propose electric panel radiators which do not involve a major modification of the production lines of conventional panel radiators and in particular no substantial modifications of the stations for manufacturing the panels themselves. Another objective of the present invention is to provide an electric radiator with heat transfer fluid which can be used widely in any type of room, with satisfactory heating efficiency. Another objective of the invention is to provide such a radiator which can be produced with dimensions and a presentation identical or close to those of certain existing radiators. The invention also aims to provide such a radiator which makes it possible to obtain good heating uniformity. These objectives, as well as others which will appear subsequently, are achieved thanks to the invention which relates to an electric radiator with heat transfer fluid, comprising at least one panel having at least one internal volume intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow lateral connections communicating with said internal volume or volumes, characterized in that it comprises at least one tubular element extending between and communicating with said lateral connections, said tubular element including electric heating means. Thus, the invention provides a radiator of simple and efficient design, of the type with heat transfer fluid heated using electrical means. Such a radiator can be manufactured using existing production tools and techniques for the manufacture of panel radiators. Also, the manufacture and assembly of a tubular element incorporating electrical heating means constitute relatively inexpensive adaptations making it possible to develop a technique of radiators dedicated to central heating with a radiator technique of the electric type with heat transfer fluid. Indeed, it suffices for the installation of the tubular element to use the existing fittings on the radiators traditionally manufactured, these fittings extending perpendicular to the (x) panel (x). It is noted that the radiator according to the invention does not lead to any increase in overall dimensions compared to a traditional radiator of the same panel size. According to a preferred solution, the radiator also comprises an essentially central intermediate connection communicating with said tubular element.
Selon une variante ce raccord intermédiaire est situé entre le quart et la moitié de la longueur dudit élément tubulaire Un tel agencement permet d'optimiser l'efficacité et l'homogénéité du chauffage, comme cela va apparaître plus clairement par la suite. Avantageusement, lesdits moyens électriques s'étendent sur une longueur au moins supérieure à la moitié de la longueur dudit élément tubulaire, et préférentiellement sur une longueur au moins supérieure aux deux tiers de la longueur dudit élément tubulaire. On obtient de cette façon un échange thermique satisfaisant entre les moyens de chauffage électriques et le fluide caloporteur, ce qui assure au radiateur un bon rendement et une bonne qualité de chauffage. Selon un mode de réalisation particulier, le radiateur comprend deux panneaux. De cette façon, on augmente le volume de fluide caloporteur et donc la capacité de chauffage du radiateur. Dans ce cas, ledit élément tubulaire occupe préférentiellement une position médiane entre lesdits panneaux et communique avec chacun desdits raccords inférieurs desdits panneaux. Ainsi, l'élément tubulaire est monté entre les deux panneaux de façon ergonomique et discrète. Avantageusement, le radiateur comprend au moins un raccord supérieur mettant en communication ledit ou lesdits volumes internes desdits panneaux. De cette façon, on améliore la circulation du fluide caloporteur dans le radiateur, et par conséquent la propagation de la chaleur dans ce fluide, ceci par un phénomène connu de thermo-siphon. Préférentiellement, ledit ou lesdits panneaux sont constitués par l'assemblage d'un demi corps arrière soudé à un demi corps avant. Un radiateur ainsi réalisé permet de conserver les avantages des radiateurs à panneaux classiques, à savoir : - une façade essentiellement plane autorisant un habillage du radiateur et donc une intégration dans le décor de la pièce dans laquelle il se trouve ; une rigidité suffisante empêchant le ou les panneaux du radiateur de gondoler, ceci en prévoyant par exemple un ou plusieurs canaux sur la surface des demi corps. Selon une solution avantageuse, lesdits moyens de chauffage électriques comprennent au moins une résistance. Avantageusement lesdits moyens de chauffage électriques sont reliés à un boîtier de régulation de la puissance électrique dispensés par ces moyens de chauffage électriques. Une telle résistance électrique constitue un moyen de chauffage électrique relativement peu onéreux, et facile à installer et à fixer dans l'élément tubulaire. L'invention concerne également un élément tubulaire destiné à équiper un radiateur électrique à fluide caloporteur, comprenant au moins un panneau présentant au moins un volume interne destiné à contenir ledit fluide caloporteur et présentant au voisinage de son bord inférieur au moins deux raccords creux communiquant avec ledit ou lesdits volumes internes, caractérisé en ce qu'il comprend des moyens de communication avec chacun desdits raccords et en ce qu'il inclut une résistance électrique. D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation préférentiel de l'invention, donné à titre d'exemple illustratif et non limitatif, et des dessins annexés parmi lesquels : - les figures 1 à 3 sont des vues respectivement de dessous, de face et de côté d'un radiateur selon l'invention ; - la figure 4 est une représentation d'un relevé de températures sur un radiateur selon l'invention. Tel que déjà indiqué précédemment, le principe de l'invention réside dans le fait de faire communiquer un élément tubulaire incluant des moyens de chauffage électriques avec le ou les volumes internes d'un panneau (ou de plusieurs) renfermant un fluide caloporteur, ceci par l'intermédiaire de raccords inférieurs. Selon le présent mode de réalisation illustré par les figures 1 à 3, l'élément tubulaire 1 dans lequel est montée une résistance électrique 2 communique avec les raccords 31 prévus à la base et à chaque extrémité de chacun des panneaux 3 du radiateur. Bien entendu, ces raccords 31 sont eux-mêmes des éléments tubulaires communiquant avec les volumes internes des panneaux 3. On comprend donc que les volumes internes de l'élément tubulaire 1, des raccords 31 et des panneaux 3 communiquent entre eux. Ceci permet notamment la circulation du fluide caloporteur (par un phénomène de thermo-siphon) de l'élément tubulaire de chauffage 1 vers les volumes internes des panneaux 3, ou inversement. Tel que cela apparaît clairement sur la figure 3, l'élément tubulaire 1 est monté de façon à occuper une position médiane entre les panneaux 3 du radiateur. De plus, selon le présent mode de réalisation, le radiateur comprend un raccord central 32 reliant également les volumes internes de l'élément tubulaire 1 et des panneaux 3. En outre, le radiateur comprend des raccords supérieurs latéraux 33 mettant en communication les volumes internes des panneaux 3, au voisinage du bord supérieur de ceux-ci. Tel qu'illustré par la figure 2, la résistance 2 présente une longueur supérieure aux deux tiers de la longueur de l'élément tubulaire 1, et est fixée sur un embout 1 1 de l'élément tubulaire portant des moyens de raccordement électriques 11 1. On note que les panneaux 3 sont formés par l'assemblage (en l'occurrence le soudage) de deux demi corps réalisés en tôle emboutie, intégrant des canaux verticaux 35 formant une pluralité de volumes internes et favorisant la circulation du fluide caloporteur. Selon le présent mode de réalisation, chaque panneau présente un collecteur haut et un collecteur bas, reliés par des canaux verticaux d'extrémités. Les collecteurs sont en outre reliés entre eux par une série de canaux verticaux permettant le passage du fluide de chauffage. Plus précisément, les panneaux présentent un demi corps avant (destiné à être exposé à la vue) formant une surface essentiellement plane, et un demi corps arrière présentant une structure ondulée délimitant les canaux conduisant les veines de fluide caloporteur d'un collecteur à l'autre. Par ailleurs, les panneaux 3 présentent, sur leur demi corps se faisant face, des ailettes 36 favorisant la convexion de la chaleur émise par le radiateur. Un radiateur électrique à fluide caloporteur tel que celui qui vient d'être décrit peut être fabriqué aisément, ceci en réalisant un radiateur à panneau(x) d'un type connu et en rapportant par soudage, sur les raccords inférieurs du ou des panneaux, un élément tubulaire destiné à inclure une résistance électrique. Cet élément tubulaire pourra être fourni sous forme d'un ensemble prémonté, incluant une résistance électrique, en vue de son intégration dans les chaînes de montage d'un radiateur selon l'invention. La figure 4 fournit une représentation d'un relevé de températures au niveau de différentes parties constitutives d'un radiateur selon l'invention, ce relevé étant obtenu à l'aide de sondes régulièrement réparties sur l'élément tubulaire de chauffage 1, sur les canaux 35 des panneaux 3 et sur les raccords latéraux supérieurs 33. Comme cela apparaît, les températures relevées au niveau de l'élément tubulaire 1 se propagent de façon régulière vers le haut des panneaux 3 au travers des canaux 35, comme l'indiquent les lignes 41 , 42, 43 de relevé de températures. On note également que : - les températures d'une même ligne sont relativement homogènes ; - les températures au niveau des raccords supérieurs sont homogènes par rapport aux températures relevées sur la ligne 43. Ces relevés tendent donc à démontrer l'efficacité d'un radiateur selon l'invention, tant en termes de propagation de la chaleur que d'homogénéité des températures dans certaines zones du radiateur. According to a variant, this intermediate connector is located between a quarter and a half of the length of said tubular element. Such an arrangement makes it possible to optimize the efficiency and the homogeneity of the heating, as will become clearer later. Advantageously, said electrical means extend over a length at least greater than half the length of said tubular element, and preferably over a length at least greater than two thirds of the length of said tubular element. In this way, a satisfactory heat exchange is obtained between the electrical heating means and the heat transfer fluid, which gives the radiator good efficiency and good heating quality. According to a particular embodiment, the radiator comprises two panels. In this way, the volume of heat transfer fluid and therefore the heating capacity of the radiator is increased. In this case, said tubular element preferably occupies a middle position between said panels and communicates with each of said lower connections of said panels. Thus, the tubular element is mounted between the two panels in an ergonomic and discreet manner. Advantageously, the radiator comprises at least one upper connection connecting said internal volume or volumes of said panels. In this way, the circulation of the heat transfer fluid in the radiator is improved, and consequently the propagation of the heat in this fluid, this by a known phenomenon of thermo-siphon. Preferably, said panel or panels consist of the assembly of a rear half body welded to a front half body. A radiator thus produced makes it possible to retain the advantages of conventional panel radiators, namely: - an essentially flat front allowing a covering of the radiator and therefore integration into the decor of the room in which it is located; sufficient rigidity preventing the radiator panel (s) from warping, this by providing, for example, one or more channels on the surface of the half-bodies. According to an advantageous solution, said electric heating means comprise at least one resistor. Advantageously, said electric heating means are connected to a box for regulating the electric power provided by these electric heating means. Such an electrical resistance constitutes a relatively inexpensive means of electrical heating, and easy to install and fix in the tubular element. The invention also relates to a tubular element intended to equip an electric radiator with heat transfer fluid, comprising at least one panel having at least one internal volume intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow connections communicating with said internal volume or volumes, characterized in that it comprises means of communication with each of said fittings and in that it includes an electrical resistance. Other characteristics and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment of the invention, given by way of illustrative and nonlimiting example, and of the appended drawings among which: - Figures 1 to 3 are views respectively from below, from the front and from the side of a radiator according to the invention; - Figure 4 is a representation of a temperature reading on a radiator according to the invention. As already indicated above, the principle of the invention resides in the fact of communicating a tubular element including electrical heating means with the internal volume or volumes of a panel (or several) containing a heat transfer fluid, this by through lower fittings. According to the present embodiment illustrated by FIGS. 1 to 3, the tubular element 1 in which an electrical resistance 2 is mounted communicates with the connections 31 provided at the base and at each end of each of the panels 3 of the radiator. Of course, these connections 31 are themselves tubular elements communicating with the internal volumes of the panels 3. It is therefore understood that the internal volumes of the tubular element 1, connections 31 and panels 3 communicate with each other. This allows in particular the circulation of the heat transfer fluid (by a thermo-siphon phenomenon) from the tubular heating element 1 to the internal volumes of the panels 3, or vice versa. As clearly shown in Figure 3, the tubular member 1 is mounted so as to occupy a middle position between the panels 3 of the radiator. In addition, according to the present embodiment, the radiator comprises a central connector 32 also connecting the internal volumes of the tubular element 1 and of the panels 3. In addition, the radiator comprises upper lateral connections 33 connecting the internal volumes of the panels 3, in the vicinity of the upper edge thereof. As illustrated in FIG. 2, the resistor 2 has a length greater than two thirds of the length of the tubular element 1, and is fixed to a nozzle 1 1 of the tubular element carrying electrical connection means 11 1 Note that the panels 3 are formed by the assembly (in this case welding) of two half bodies made of stamped sheet metal, integrating vertical channels 35 forming a plurality of internal volumes and promoting the circulation of the heat transfer fluid. According to the present embodiment, each panel has a high collector and a low collector, connected by vertical end channels. The collectors are also connected to each other by a series of vertical channels allowing the passage of the heating fluid. More specifically, the panels have a front half body (intended to be exposed to view) forming an essentially flat surface, and a rear half body having a wavy structure delimiting the channels leading the veins of heat transfer fluid from a collector to the other. Furthermore, the panels 3 have, on their half body facing each other, fins 36 promoting the convection of the heat emitted by the radiator. An electric radiator with heat transfer fluid such as that which has just been described can be easily manufactured, this by producing a panel radiator (x) of a known type and by welding, on the lower connections of the panel or panels, a tubular member for including an electrical resistance. This tubular element may be supplied in the form of a pre-assembled assembly, including an electrical resistance, for integration into the assembly lines of a radiator according to the invention. FIG. 4 provides a representation of a temperature reading at the level of different constituent parts of a radiator according to the invention, this reading being obtained using probes regularly distributed on the tubular heating element 1, on the channels 35 of the panels 3 and on the upper lateral connections 33. As it appears, the temperatures recorded at the level of the tubular element 1 propagate regularly upwards of the panels 3 through the channels 35, as indicated by the lines 41, 42, 43 of temperature reading. We also note that: - the temperatures of the same line are relatively homogeneous; - the temperatures at the level of the upper fittings are homogeneous with respect to the temperatures recorded on line 43. These readings therefore tend to demonstrate the efficiency of a radiator according to the invention, both in terms of heat propagation and homogeneity temperatures in certain areas of the radiator.

Claims

REVENDICATIONS
1. Radiateur électrique à fluide caloporteur, comprenant au moins un panneau (3) présentant au moins un volume interne (35) destiné à contenir ledit fluide caloporteur et présentant au voisinage de son bord inférieur au moins deux raccords latéraux (31) creux communiquant avec ledit ou lesdits volumes internes (35), caractérisé en ce qu'il comprend au moins un élément tubulaire (1) s'étendant entre lesdits raccords latéraux (31) et communiquant avec eux, ledit élément tubulaire (1) incluant des moyens de chauffage électriques (2).1. Electric radiator with heat transfer fluid, comprising at least one panel (3) having at least one internal volume (35) intended to contain said heat transfer fluid and having in the vicinity of its lower edge at least two hollow lateral connections (31) communicating said internal volume (s) (35), characterized in that it comprises at least one tubular element (1) extending between and communicating with said lateral connections (31), said tubular element (1) including heating means electric (2).
2. Radiateur selon la revendication 1 , caractérisé en ce qu'il comprend également un raccord central intermédiaire (32) communiquant avec ledit élément tubulaire (1).2. Radiator according to claim 1, characterized in that it also comprises an intermediate central connector (32) communicating with said tubular element (1).
3. Radiateur selon la revendication 2 caractérisé en ce que ledit raccord central intermédiaire (32) est situé entre le quart et la moitié de la longueur dudit élément tubulaire.3. Radiator according to claim 2 characterized in that said intermediate central connector (32) is located between a quarter and a half of the length of said tubular element.
4. Radiateur selon l'une des revendications 1 à 3, caractérisé en ce que lesdits moyens électriques (2) s'étendent sur une longueur au moins supérieure à la moitié de la longueur dudit élément tubulaire (1). 4. Radiator according to one of claims 1 to 3, characterized in that said electrical means (2) extend over a length at least greater than half the length of said tubular element (1).
5. Radiateur selon la revendication 4, caractérisé en ce que lesdits moyens électriques (2) s'étendent sur une longueur au moins supérieure aux deux tiers de la longueur dudit élément tubulaire (1).5. Radiator according to claim 4, characterized in that said electrical means (2) extend over a length at least greater than two thirds of the length of said tubular element (1).
6. Radiateur selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend deux panneaux (3). 6. Radiator according to any one of claims 1 to 5, characterized in that it comprises two panels (3).
7. Radiateur selon la revendication 6, caractérisé en ce que ledit élément tubulaire (1 ) occupe une position médiane entre lesdits panneaux (3) et communique avec chacun desdits raccords inférieurs (31) desdits panneaux (3). 7. Radiator according to claim 6, characterized in that said tubular element (1) occupies a middle position between said panels (3) and communicates with each of said lower fittings (31) of said panels (3).
8. Radiateur selon l'une des revendications 6 et 7, caractérisé en ce qu'il comprend au moins un raccord supérieur (33) mettant en communication ledit ou lesdits volumes internes (35) desdits panneaux (3). 8. Radiator according to one of claims 6 and 7, characterized in that it comprises at least one upper connector (33) connecting said internal volume or volumes (35) of said panels (3).
9. Radiateur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que ledit ou lesdits panneaux (3) sont constitués par l'assemblage d'un demi corps arrière soudé à un demi corps avant.9. Radiator according to any one of claims 1 to 8, characterized in that said one or more panels (3) are constituted by the assembly of a rear half body welded to a front half body.
10. Radiateur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que lesdits moyens de chauffage électriques (2) comprennent au moins une résistance.10. Radiator according to any one of claims 1 to 9, characterized in that said electric heating means (2) comprise at least one resistor.
11. Radiateur selon l'une quelconque des revendications 1 à 10 caractérisé en ce que lesdits moyens de chauffage électriques (2) sont reliés à un boîtier de régulation de la puissance électrique dispensés par ces moyens de chauffage électriques.11. Radiator according to any one of claims 1 to 10 characterized in that said electric heating means (2) are connected to an electric power regulation unit provided by these electric heating means.
12. Elément tubulaire (1) destiné à équiper un radiateur électrique à fluide caloporteur, comprenant au moins un panneau (3) présentant au moins un volume interne (35) destiné à contenir ledit fluide caloporteur et présentant au voisinage de son bord inférieur au moins deux raccords (31 ,33) creux communiquant avec ledit ou lesdits volumes internes (35), caractérisé en ce qu'il comprend des moyens de communication avec chacun desdits raccords (31,33 ) et en ce qu'il inclut une résistance électrique (2). 12. Tubular element (1) intended to equip an electric radiator with heat transfer fluid, comprising at least one panel (3) having at least one internal volume (35) intended to contain said heat transfer fluid and having at least near its lower edge two hollow connections (31, 33) communicating with said internal volume (s) (35), characterized in that it comprises means of communication with each of said connections (31, 33) and in that it includes an electrical resistance ( 2).
PCT/FR2005/000161 2004-01-28 2005-01-25 Electric radiator with a heat-conveying medium WO2005083332A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0400804A FR2865527B1 (en) 2004-01-28 2004-01-28 ELECTRICAL RADIATOR WITH A HEAT PUMP FLUID
FR0400804 2004-01-28

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Cited By (2)

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FR2866102A1 (en) * 2004-02-06 2005-08-12 Dl Radiators Spa Fixed or mobile type heater for use in e.g. apartment, has multiple plates, each including longitudinal duct for housing electric heating unit such as electrical resistor, where duct is in fluid communication with collector of each plate
FR3084733A1 (en) 2018-08-06 2020-02-07 Thermie Production VERTICAL ELECTRIC RADIATOR DEVICE WITH A MAXIMUM HEIGHT OF TWO METERS FOR HOUSEHOLD USE ACCORDING TO HEAT FLUID TECHNOLOGY

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2187144B1 (en) 2008-11-14 2014-12-24 H.M. Heizkörper GmbH + Co. KG Electric plate radiator

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GB481472A (en) * 1936-05-19 1938-03-11 Charles Frederik Vilhelm Flint Radiator with independent source of heat
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FR1039493A (en) * 1950-07-31 1953-10-07 Valcovny Trub Method and installation for heating radiators
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GB2211593A (en) * 1987-10-24 1989-07-05 Alan Nelson Middleton Space heating radiator
US4873421A (en) * 1985-02-08 1989-10-10 Ab Fellingsbro Verkstader Liquid-filled electric radiator
GB2251063A (en) * 1990-12-20 1992-06-24 John Anthony Page Self contained liquid filled radiator
GB2298265A (en) * 1995-02-23 1996-08-28 Apollo Heating Techn Ltd Electrically heated space heater
GB2305720A (en) * 1995-09-29 1997-04-16 Tristat Controls Ltd Central heating radiators
DE10135215C1 (en) * 2001-07-24 2002-07-25 Berg Hans Gmbh & Co Kg Plate heating radiator, for circulating hot water central heating system, uses identical double-T connection fittings for providing flow connections between two heating plates

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE315338C (en) *
US1597014A (en) * 1924-02-11 1926-08-24 Arthur B Campbell Radiator
GB481472A (en) * 1936-05-19 1938-03-11 Charles Frederik Vilhelm Flint Radiator with independent source of heat
CH230458A (en) * 1943-01-22 1944-01-15 Gassmann Edwin Electric heating device for heating at least one heating element, in particular one of central heating systems.
GB607042A (en) * 1946-01-23 1948-08-25 Max Hurley Improvements in or relating to internal heating systems for buildings
FR1039493A (en) * 1950-07-31 1953-10-07 Valcovny Trub Method and installation for heating radiators
FR1424584A (en) * 1964-12-04 1966-01-14 Improvements to electric heaters
US4873421A (en) * 1985-02-08 1989-10-10 Ab Fellingsbro Verkstader Liquid-filled electric radiator
GB2211593A (en) * 1987-10-24 1989-07-05 Alan Nelson Middleton Space heating radiator
GB2251063A (en) * 1990-12-20 1992-06-24 John Anthony Page Self contained liquid filled radiator
GB2298265A (en) * 1995-02-23 1996-08-28 Apollo Heating Techn Ltd Electrically heated space heater
GB2305720A (en) * 1995-09-29 1997-04-16 Tristat Controls Ltd Central heating radiators
DE10135215C1 (en) * 2001-07-24 2002-07-25 Berg Hans Gmbh & Co Kg Plate heating radiator, for circulating hot water central heating system, uses identical double-T connection fittings for providing flow connections between two heating plates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866102A1 (en) * 2004-02-06 2005-08-12 Dl Radiators Spa Fixed or mobile type heater for use in e.g. apartment, has multiple plates, each including longitudinal duct for housing electric heating unit such as electrical resistor, where duct is in fluid communication with collector of each plate
FR3084733A1 (en) 2018-08-06 2020-02-07 Thermie Production VERTICAL ELECTRIC RADIATOR DEVICE WITH A MAXIMUM HEIGHT OF TWO METERS FOR HOUSEHOLD USE ACCORDING TO HEAT FLUID TECHNOLOGY

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