EP0860666B1 - Radiateur électrique à accumulation - Google Patents
Radiateur électrique à accumulation Download PDFInfo
- Publication number
- EP0860666B1 EP0860666B1 EP98400434A EP98400434A EP0860666B1 EP 0860666 B1 EP0860666 B1 EP 0860666B1 EP 98400434 A EP98400434 A EP 98400434A EP 98400434 A EP98400434 A EP 98400434A EP 0860666 B1 EP0860666 B1 EP 0860666B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- radiator according
- radiator
- block
- radiation
- 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.)
- Revoked
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Classifications
-
- 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
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/06—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being radiated
- F24H7/062—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being radiated with electrical energy supply
-
- 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
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
- F24H7/0216—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply the transfer fluid being air
Definitions
- the invention relates to a electric heater accumulation as defined in the preamble of claim 1 and known from GB-A-2850 950.
- Electric storage heaters are mainly composed of an accumulator core in dense refractory material, such as bricks, in which resistors are inserted or embedded electric heaters.
- This accumulator core is surrounded by high temperature insulating material, itself usually surrounded by a metal carcass intended to ensure the mechanical resistance of the radiator.
- the electrical energy is transformed into thermal energy by Joule effect through electrical resistances.
- the heat is then transmitted to the accumulator core by conduction and radiation which is then heated to 700 ° C. Heat transfers from accumulator core to the insulating material which surrounds it, then to the metal carcass, are macroscopic level, almost exclusively by conduction, that is to say by a solid contact between the different elements.
- the carcass which is therefore heated to 90 ° C by conduction, transmits thermal energy to the room in which the radiator is installed by convection and radiation. If the appliance is not built into a wall, there is very little conduction. In addition, the standards security requirements for these devices limit the exterior surface temperature at 90 ° C. For the user, the device therefore mainly radiates by its front face, at a maximum temperature of 90 ° C.
- the second category of radiators electric is made up of radiant panels which are composed of one or several electrical resistances, or one or more several resistive circuits, glued or inserted in a metal plate. The whole is surrounded by metal carcass.
- the resistance (s) or the or the resistive circuit (s) transform (s) by Joule effect electrical energy into thermal energy and transmits it (tent) by conduction to the plate metallic, called "hot plate".
- the front of the metal frame of this device is a sheet pierced with holes distributed uniformly over the surface. The hot plate then transmits its energy thermal to the metal carcass which transmits it to the room in which the device is installed, essentially by convection and radiation.
- the face front of the device, pierced with holes allows the most of the radiation from the plate heating.
- the security standards imposed on metal carcass temperatures are lower at 90 ° C, but nothing is imposed for the plate heating. The latter commonly reaches a temperature of 150 ° C, while the carcass radiates at a maximum temperature of 90 ° C.
- the patent document GB-2,280,950 describes a space heating device accumulation which can function by convection, in particular by the front face 12. On the other hand, this one does not have additional protection and the thickness of the metal structure surrounding the heating block 3 has a uniform thickness.
- Figures 4, 5 and 6 depict a new storage heater which has a front wall 23 having a grid 24.
- the object of the invention is to propose a electric radiator operating by radiation and accumulation, radiation exceeding 20% of the energy transmitted.
- the radiator comprises a plate, possibly metallic of radiation, placed against the front part of the insulating jacket.
- this perforated front face is an external part of a radiator casing electric inside which is placed the block accumulator.
- the radiation plate is, from preferably, an internal part of the carcass of the radiator.
- the air inlet is in the lower part of it.
- the air outlet is located preferably at the top of the radiator.
- the air outlet is constituted by the upper part of the front face with medium perforations.
- the thickness of the front part of the insulating envelope is restricted from one to four millimeters so that the radiation temperature ⁇ r at the front surface of the accumulator block is of the order of 150 ° C.
- the distance between the front and the front surface of the accumulator block is between five and forty millimeters.
- the radiator according to the invention is represented on the single figure which is a view rider cut vertically. In other words, only the end of the radiator has been shown. The section allows to visualize the different components of this one.
- a foot 1 has been shown at the bottom of this figure, supporting the end of the radiator. We can easily imagine that there are two feet for bear this one. We can also consider that this radiator is fixed in the room in another way.
- the radiator accumulator block is composed of several 7 drowned electrical resistors in an energy storage core 2 which is a thick vertical plate of accumulator material of energy such as dense refractory bricks.
- the electrical resistances 7 can also be consisting of resistive circuits bonded or inserted into inside the accumulator block. This accumulator core energy 2 is completely surrounded by insulation.
- the rear part of the insulating jacket is marked 3
- the part lower is marked 4
- the upper part is marked 5
- the front part is marked 6. This last is visualized in a slightly different from the other three to better distinguish it. Indeed, it should be noted that its thickness is slightly lower than that of the other three. This thickness reduction is important to obtain the desired result by means of the radiator according to the invention.
- the accumulator block is completed by a internal part of a carcass, for example metallic, which surrounds the insulating envelope formed by these four parts 3, 4, 5 and 6. It consists of a back plate 16, also constituting the face rear of radiator, internal top plate 17, an inner bottom plate 18 and a plate front, called radiation plate 8.
- a back plate 16 also constituting the face rear of radiator
- internal top plate 17 an inner bottom plate 18
- a plate front called radiation plate 8.
- the radiator is completed by a part external of the carcass of the assembly, consisting mainly by a lower part 13, curved on its surface before and ending with a base 12 of radiator, crossed by large perforations 19, thus constituting an air inlet in the radiator.
- a front face 10, preferably metallic, perforated, extends this lower part 13 to result in a upper part 14, slightly curved and crossed by perforations 15 and placed above the plate upper 17 of the internal part of the carcass for join the rear plate 16 of the radiator.
- This upper part 14 is preferably curved and crossing of medium-sized perforations 15. These last, in cooperation with the perforations 19 of the bottom 12 constituting the radiator inlet, allow an air current inside this one. The energy required for this air flow is produced by the temperature rise provided by the accumulator block.
- the metallic front face 10 of the outer part of the carcass also has small diameter perforations. She is slightly rounded and leaves a space 20 between itself and the external surface 9 of the accumulator block.
- the walls side of the latter have not been shown, but do exist. They are made up an insulating layer of the same thickness as the parts rear 3, lower 4 and upper 5 of the envelope insulation and a lateral metal sheet of the radiator casing.
- the operation of the radiator according to the invention is as follows.
- Electric resistances 7 transform by Joule effect electrical energy into energy thermal and transmit it by conduction and radiation to the energy storage core 2. This, once heated, in turn transmits, by conduction, thermal energy to the insulating envelope, from all sides.
- the front part 6 of the insulating envelope has a thickness slightly less than the other lateral, rear 3, lower 4 and upper 5 parts
- the temperature at the external surface of this front part 6 of the insulating envelope ie a radiation temperature ⁇ r higher than the insulation temperature ⁇ 1 prevailing on the external surface of the other parts of the insulating envelope.
- the storage core can reach a high temperature ⁇ e of 700 ° C and transmit thermal energy to the insulating envelope.
- the temperature of these external surfaces can be less than or equal to 90 ° C.
- the thickness of the front part 6 being restricted, it is possible to ensure that the temperature on the external surface thereof is equal to 150 °.
- the radiation plate 8 located on this front part 6 of the insulating envelope can be heated to a radiation temperature ⁇ r of 150 ° C., unlike the rest of the internal part of the carcass, namely the parts side and the parts referenced 16, 17 and 18, which will be heated to an insulation temperature ⁇ i ⁇ 90 ° C. Consequently, as in the device of the prior art, the air always passes from bottom to top the radiator according to the invention, is heated by the accumulator block and therefore exits through the perforations 15 in the upper part 14 of the carcass .
- the surface of the radiation plate 8 which is at a radiation temperature ⁇ r of 150 ° radiates opposite itself, that is to say in the space 20 and through the front face 10 of the carcass which is perforated.
- This front face 10 is therefore heated to a temperature in the region of 90 ° C., while the rest of the thermal energy emitted by the radiation plate 8 passes through the latter to enter the room in which the radiator is placed.
- the radiation plate 8 acts like a radiating panel.
- Safety standards require that the external parts of the carcass must not exceed the temperature of 90 ° C.
- the front face 10 of the radiator makes it possible to comply with these standards, the space 20 separating the radiation plate 8, the temperature of the metal radiation plate possibly rising to 150 ° C.
- the electric heater according to the invention operating with accumulation and radiation, so has a share of radiated energy closer than that of a radiant panel of the prior art, than that of a traditional storage electric heater. The comfort is therefore improved.
- the proportion of energy transmitted by radiation will be all the more important than the radiating surface of the plate 8 will be important.
Landscapes
- 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)
- Resistance Heating (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Description
- des résistances électriques pour apporter l'énergie thermique ;
- un noyau accumulateur constitué d'un bloc de matériau accumulateur d'énergie dans lequel sont noyées les résistances électriques ; et
- une enveloppe isolante en matériau isolant entourant le noyau accumulateur, définissant des parties latérales, supérieure, inférieure, arrière et avant et aux surfaces des parties latérales, supérieure, inférieure et arrière de laquelle règne une température d'isolement 1 relativement basse.
- une face avant perforée, placée devant la surface avant du bloc accumulateur, l'épaisseur de la partie avant de l'enveloppe isolante étant restreinte, pour qu'à la surface de cette partie avant règne une température de rayonnement r relativement moyenne, c'est-à-dire supérieure à la température d'isolement 1.
Claims (10)
- Radiateur électrique à accumulation comprenant un bloc accumulateur à l'intérieur duquel règne une température élevée (e) et comprenantdes résistances électriques (7) ;un noyau accumulateur d'énergie (2) constitué d'un bloc de matériau accumulateur d'énergie et dans lequel sont noyées les résistances électriques (7) ; etune enveloppe isolante (3, 4, 5, 6) entourant le noyau accumulateur d'énergie (2) définissant des parties latérales, inférieure (4), supérieure (5), arrière (3) et avant (6) et à la surface des parties latérales, arrière (3), inférieure (4) et supérieure (5) de laquelle règne une température d'isolement (i) relativement basse,
et en ce que l'épaisseur de la partie avant (6) de l'enveloppe isolante (3, 4, 5, 6) est restreinte pour qu'à la surface avant (9) du bloc accumulateur règne une température de rayonnement (r) moyenne supérieure à la température d'isolement (i). - Radiateur électrique selon la revendication 1, comprenant une plaque de rayonnement (8) placée contre la partie avant (6) de l'enveloppe isolante.
- Radiateur électrique selon la revendication 2, dans lequel la plaque de rayonnement (8) est métallique.
- Radiateur selon la revendication 1, dans lequel la face avant (10) est une partie externe d'une carcasse à l'intérieur de laquelle est placé le bloc accumulateur.
- Radiateur électrique selon la revendication 1, dans lequel la plaque de rayonnement (8) est une partie interne de la carcasse du radiateur.
- Radiateur électrique selon la revendication 1, caractérisé en ce qu'il comprend une entrée d'air dans le fond (12) du radiateur, c'est-à-dire dans sa partie inférieure.
- Radiateur électrique selon la revendication 1, comprenant une sortie d'air placée dans la partie supérieure du radiateur.
- Radiateur électrique selon la revendication 7, dans lequel la sortie d'air est constituée par la partie supérieure (14) de la partie avant de la carcasse et possédant des perforations moyennes (15).
- Radiateur électrique selon la revendication 1, dans lequel la température élevée (e) régnant à la surface du noyau accumulateur d'énergie (2) est de l'ordre de 700°C, la température d'isolement (i) régnant à la surface du bloc accumulateur, sauf sur la surface avant (9) du bloc accumulateur, est de l'ordre de 90°C, l'épaisseur de la partie avant (6) de l'enveloppe isolante (3, 4, 5, 6) est restreinte de un à quatre millimètres, la température de rayonnement (r) régnant à la surface avant (9) du bloc accumulateur étant de l'ordre de 150°C.
- Radiateur électrique selon la revendication 1, dans lequel la distance séparant la face avant (10) et la surface avant (9) du bloc accumulateur est comprise entre cinq et quarante millimètres.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702217A FR2760073B1 (fr) | 1997-02-25 | 1997-02-25 | Radiateur electrique a accumulation ou inertie et rayonnement |
FR9702217 | 1997-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0860666A1 EP0860666A1 (fr) | 1998-08-26 |
EP0860666B1 true EP0860666B1 (fr) | 2002-01-23 |
Family
ID=9504135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400434A Revoked EP0860666B1 (fr) | 1997-02-25 | 1998-02-23 | Radiateur électrique à accumulation |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0860666B1 (fr) |
AT (1) | ATE212432T1 (fr) |
DE (1) | DE69803498T2 (fr) |
ES (1) | ES2170457T3 (fr) |
FR (1) | FR2760073B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3009761A1 (fr) | 2014-09-30 | 2016-04-20 | Verelec | Dispositif et système de chauffage électrique |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2848685B1 (fr) * | 2002-12-16 | 2005-05-13 | Guy Palayer | Radiateur a inertie et son procede d'alimentation en courant |
FR2848646B1 (fr) * | 2002-12-16 | 2005-12-16 | Guy Palayer | Radiateur a inertie a protection amelioree et procede de fabrication d'un tel radiateur |
ES2265783B2 (es) * | 2005-08-05 | 2007-08-16 | Climastar Thermostone, S.L. | Gres porcelanico con cobertura posterior de metal sintetico. |
ES2265784B1 (es) * | 2005-08-05 | 2007-12-16 | Climastar Thermostone, S.L. | Disposicion para el calefactado de placas de gres porcelanico para su actuacion como acumulador y radiante para calefaccion. |
BRPI0614268A2 (pt) * | 2005-08-05 | 2011-03-22 | Climaster Global Company S L | disposição de placas de material de porcelana para uso como um acumulador e como um elemento irradiante para calefação |
EP2141418A1 (fr) * | 2008-07-04 | 2010-01-06 | Climastar Global Company, S.L. | Système de chauffage électrique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1402950A (fr) * | 1964-04-27 | 1965-06-18 | Perfectionnement aux appareils de chauffage électriques à accumulation | |
DE1812015A1 (de) * | 1968-11-30 | 1970-06-18 | Licentia Gmbh | Waermespeicherofen |
GB2280950A (en) * | 1993-07-31 | 1995-02-15 | Oakline Manufacturing Limited | Storage heater |
-
1997
- 1997-02-25 FR FR9702217A patent/FR2760073B1/fr not_active Expired - Fee Related
-
1998
- 1998-02-23 EP EP98400434A patent/EP0860666B1/fr not_active Revoked
- 1998-02-23 AT AT98400434T patent/ATE212432T1/de not_active IP Right Cessation
- 1998-02-23 ES ES98400434T patent/ES2170457T3/es not_active Expired - Lifetime
- 1998-02-23 DE DE69803498T patent/DE69803498T2/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3009761A1 (fr) | 2014-09-30 | 2016-04-20 | Verelec | Dispositif et système de chauffage électrique |
Also Published As
Publication number | Publication date |
---|---|
FR2760073B1 (fr) | 1999-04-16 |
DE69803498D1 (de) | 2002-03-14 |
ATE212432T1 (de) | 2002-02-15 |
EP0860666A1 (fr) | 1998-08-26 |
ES2170457T3 (es) | 2002-08-01 |
FR2760073A1 (fr) | 1998-08-28 |
DE69803498T2 (de) | 2002-09-26 |
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