EP1641320A1 - Elektrische Trägheitsheizvorrichtung - Google Patents

Elektrische Trägheitsheizvorrichtung Download PDF

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Publication number
EP1641320A1
EP1641320A1 EP05356167A EP05356167A EP1641320A1 EP 1641320 A1 EP1641320 A1 EP 1641320A1 EP 05356167 A EP05356167 A EP 05356167A EP 05356167 A EP05356167 A EP 05356167A EP 1641320 A1 EP1641320 A1 EP 1641320A1
Authority
EP
European Patent Office
Prior art keywords
diffuser
heating device
heat
block
electric heating
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.)
Withdrawn
Application number
EP05356167A
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English (en)
French (fr)
Inventor
Eric Martinez
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1641320A1 publication Critical patent/EP1641320A1/de
Withdrawn legal-status Critical Current

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    • 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
    • F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using 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
    • F24H7/06—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

Definitions

  • the present invention relates to the technical field of individual electric heating devices used to heat living rooms or offices.
  • an electric convector which comprise a hollow housing, provided with high and low openings, and inside which is disposed an electrical resistance, possibly associated with fins.
  • an electric convector ensures a heating of the ambient air by a phenomenon of convection, during which the air heats up in contact with the electrical resistance or the fins which are associated with it. If such devices can raise relatively quickly the temperature of a room by bringing the air of the latter to the desired temperature, they have, however, the disadvantage of not providing a comfortable heat, such as the heat emitted by a water radiator system in particular.
  • radiators include a large number of refractory ceramic heat accumulator blocks equipped with electric resistors.
  • the accumulator blocks are heated by the electrical resistances and store calories.
  • the radiator diffuses, by convection and radiation, the heat stored in the accumulator blocks.
  • Such devices allow, effectively, to obtain a diffusion of heat by radiation and by convection.
  • they have the disadvantage of being relatively bulky and heavy, because of the large number of accumulator blocks they contain, so that their installation is not always easy and they are unsuitable for parts. small volume dwelling.
  • the invention relates, more particularly, to this type of electric heating device which uses a heat accumulator block of smaller dimensions than the blocks of the storage radiators and which makes it possible to constitute a heat buffer reserve, avoiding the electrical consumption and, therefore, to obtain a significant increase in the performance of this type of electric heating devices compared to an electric convector of equivalent electric power.
  • the electric heating device is characterized in that it comprises, in addition, at least one heat diffuser of thermally conductive material which is placed inside the housing in contact with the accumulator block and which is shaped to define, in association with the housing, at least one air circulation channel, with a view to ensuring a diffusion of heat by convection and which has a surface greater than that of one of the main faces of the accumulator block, in order to ensure diffusion of heat by radiation.
  • the heating device can be made in different ways, for example, to form a mobile device, such as, for example, an auxiliary radiator that can be moved as needed.
  • the electric heating device according to the invention is intended to be installed permanently against a support, such as, for example, a partition or a wall.
  • the housing has a back equipped with means for attachment to a support and, opposite the back, a facade.
  • the heat diffuser is then interposed between the facade and the storage block.
  • the casing will then have, in front, a wall transparent to infrared rays, such as, for example, a wall of special glass or plastic, this wall may have patterns or colors conferring on the device according to the invention, a decorative function.
  • the electric heating device comprises two heat diffusers which are arranged on either side of the accumulator block by being in contact therewith and interposed between the accumulator block and the housing and which define, by their facing face, at least one air circulation channel.
  • each diffuser in order to promote the diffusion of heat by radiation, without however canceling the diffusion of heat by convection, is shaped so that the air circulation channel, defined in relation with the casing, has at least one decelerating bend of the convection air stream.
  • each diffuser is shaped to present an alternation of concave and convex conformations which define, seen from the large face of the diffuser opposite to the contact face of the diffuser with the accumulation block, channels form of chevrons that converge towards the center of the large face of the diffuser and whose branches diverge towards the sides of the large face of the diffuser.
  • Such a conformation of the diffusers thus makes it possible to increase their radiation surface and to obtain a temperature of the surface of the diffuser that is more homogeneous.
  • the large face of each diffuser, located in contact with the accumulator block has a relief imprint for a support on the accumulator block.
  • the heat accumulator block has a rectangular parallelepiped shape and two large faces, respectively front and rear.
  • the front and rear faces each have reception grooves of electrical resistance length with a view, in particular, to favor a diffusion of heat by radiation.
  • the grooves of the front face of the accumulator block are then made so as to allow the establishment of a length of electrical resistance greater than the length of electrical resistance present on the rear face.
  • the front face of the accumulator block has, in its lower part, a length of electrical resistance greater than the length of electrical resistance present in the upper part of said front face.
  • the casing has, at the top and bottom, air passages and the accumulator block. is surrounded by a protective frame against liquid runoff.
  • Fig. 1 is an exploded perspective view of an electric heating device according to the invention.
  • Fig. 2 is a section along plane II-II of FIG. 1, of the heating device according to the invention in an assembled state.
  • Fig. 3 is a section, according to the plane III-III of FIG. 1, the electric heater, also in an assembled state.
  • Fig. 4 is a perspective view, from its front face, of a diffuser before implementation in the context of the electric heating device illustrated in FIG. 1.
  • Fig. 5 is a perspective, in rear view, of the front diffuser, as shown in FIG. 4.
  • Fig. 6 is a view from the front of the rear diffuser constituting the electric heater shown in FIG. 1.
  • Fig. 7 is a rear perspective view of the rear diffuser, as shown in FIG. 6.
  • An electric heating device as illustrated in FIGS. 1 to 3, comprises a housing 1, inside which are arranged the various components of the heating device.
  • the electric heating device is intended to be placed against a wall or wall and has, for this purpose, a back 2 equipped with means 3 for attachment to a support, not shown.
  • the back 2 is made of folded sheet and has two windows 4, intended to cooperate with the means 3 forming, for example, a hooking chair may be fixed against a wall.
  • the casing 1 also comprises a frontage 5 situated, of course, opposite the back 2.
  • the frontage 5 is also made of sheet metal and is shaped to, when assembled with the back 2, define a partially closed volume, inside which are arranged the other components of the electric heater, so as to place them out of direct reach.
  • the front 5 of the housing 1 has a wall 6 transparent to infrared rays and can, for example, be made of frosted glass.
  • a wall 6 transparent to infrared rays and can, for example, be made of frosted glass.
  • any other material could be envisaged for the front wall 6, insofar as the selected material will be able to pass, at least in part, the infrared radiation.
  • the electric heater also comprises at least one and according to the illustrated example, exactly one block heat accumulator 10, for imparting to the heating device a certain thermal inertia.
  • the accumulator block 10 can be made of any suitable refractory material and, according to the illustrated example, is constituted by a rectangular parallelepipedal block of refractory ceramic, of rather flattened shape, so as to present two large main faces before 11 and rear 12.
  • the accumulator block 10 is, furthermore, equipped with an electrical resistor 13 placed in grooves 14 arranged in the front faces 11 and rear 12 of the block 10.
  • the grooves 14 of the front face 11 of the accumulator block 12 are made of in order to allow the introduction of an electrical resistance length 13 greater than the electrical resistance length present on the rear face 12.
  • the front face 11 of the accumulator block 10 has, in its lower part, a length of electrical resistance greater than the length of electrical resistance present in the upper part. of this same front face 11.
  • the front face 11 of the block 10 has, in its lower part, five horizontal grooves 14 of identical length for receiving a length of resistance, while the part upper or upper face 11 has only three horizontal grooves of the same length as the grooves of the lower part.
  • the electrical resistance 13 will, in addition, be supplied with electricity by a control block 15 integrating, for example, a thermostat which makes it possible to regulate the temperature of the accumulator block 10 and, consequently, the temperature of the room inside. of which the electric heating device according to the invention is arranged.
  • a control block 15 integrating, for example, a thermostat which makes it possible to regulate the temperature of the accumulator block 10 and, consequently, the temperature of the room inside. of which the electric heating device according to the invention is arranged.
  • the electric heating device also comprises at least one and, according to the illustrated example, two heat diffusers, front 20 and rear 21, which are arranged on both sides. another of the accumulator block 10 being in contact therewith, as shown more particularly in FIGS. 2 and 3.
  • each diffuser 20, 21 is shaped to define, in association with the housing 1, at least one air circulation channel, to ensure a diffusion of heat by convection.
  • the diffusers 20, 21 are made in such a way as to have a surface greater than that of one of the main faces of the accumulator block 10, to ensure diffusion of heat radiation.
  • each diffuser has the general shape of a rectangular plate shaped to present an alternation of concave and convex conformations that provide a dual function.
  • each of the diffusers 20, 21 allow, by the interposition of each diffuser, between the corresponding wall of the casing 1 and the accumulator block 10, to avoid a direct contact of the accumulator block 10 with the corresponding face with the housing and thus prevent a too high temperature of the housing during operation of the heating device according to the invention.
  • each diffuser makes it possible to define, in association with the corresponding part of the casing, at least one channel 22 for the circulation of the air, in order to ensure a diffusion of heat by convection and limit the rise in temperature of the outer wall of the casing 1.
  • the alternation of concave and convex conformations defines, on the large face of each diffuser opposite to the contact face of each diffuser with the accumulation block, as illustrated in FIG . 4 and 6 , chevron shaped channels that converge towards the center of the large face of the diffuser and whose branches diverge to the sides.
  • the alternation of convex and concave conformations defines "V" channels whose branches converge, from the four sides of the diffuser, towards the center of the latter.
  • This radial arrangement aims to ensure a better homogeneity of the temperature of the diffusers.
  • the "V" rafters define, with the corresponding part of the casing, channels that have at least one convective air flow deceleration bend. This advantageous arrangement of the invention thus limits the convection phenomena, at least at the level of the face of the diffuser in contact with the housing and, in particular, at the contact face of the diffuser before 20 with the front wall 6 of the casing 1.
  • each diffuser in order to guarantee the quality of the contact, between the diffusers 20, 21 and the accumulator block 10, each diffuser has, at its large level, face intended to be in contact with the accumulator block, a relief imprint 25 for support and optimum contact with the accumulator block 10.
  • the battery pack 10 is then placed between the front 20 and rear diffusers 21 which are thus interposed between the block 10 and the corresponding portion of the housing, namely the front panel 5 and the 2.
  • the facing faces of the diffusers 20 and 21 define two channels 26 for circulating the air for a heat diffusion of the block 10 by convection.
  • the casing 1 has openings 27 which, according to the illustrated example, are arranged on the upper and lower parts of the facade 5, so as to allow circulation through the casing 1 and ensure a diffusion by convection of the heat of the accumulator block 10.
  • the device according to the invention further comprises a frame 28 intended to provide protection for the block 10 and the resistance 13 against runoff or splashing of liquids. to intervene by the gills 27 arranged in the upper part of the casing 1.
  • the design of the electric heating device according to the invention has the advantage of allowing a diffusion of heat by convection, while promoting the diffusion of heat by radiation, so that the electric heating device according to the invention offers a very high quality of comfort.
  • the use of the accumulator block makes it possible to give the heating device a certain inertia which avoids an excessive power supply of the electrical resistance and thus makes it possible to save energy by increasing the thermoelectric efficiency of the device.

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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)
EP05356167A 2004-09-23 2005-09-23 Elektrische Trägheitsheizvorrichtung Withdrawn EP1641320A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0410047A FR2875668B1 (fr) 2004-09-23 2004-09-23 Dispositif de chauffage electrique a inertie

Publications (1)

Publication Number Publication Date
EP1641320A1 true EP1641320A1 (de) 2006-03-29

Family

ID=34950714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05356167A Withdrawn EP1641320A1 (de) 2004-09-23 2005-09-23 Elektrische Trägheitsheizvorrichtung

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US (1) US20060086732A1 (de)
EP (1) EP1641320A1 (de)
CA (1) CA2520817A1 (de)
FR (1) FR2875668B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177840A1 (de) 2008-10-13 2010-04-21 Jean-Michel Perrier Heizkörper für Hausheizsysteme

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164195A (ja) * 1984-02-06 1985-08-27 Matsushita Electric Ind Co Ltd 蓄熱装置
GB2160965A (en) * 1984-06-13 1986-01-02 Electricity Council Thermal storage device
DE9218708U1 (de) * 1992-05-12 1995-02-16 Türk & Hillinger GmbH, 78532 Tuttlingen Elektrische Heizvorrichtung mit PTC-Elementen
US6093909A (en) * 1997-08-29 2000-07-25 David & Baader - Dbk - Spezialfabrik Elektischer Apparate Und Heizwiderstande Gmbh Flow heater

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234782A (en) * 1978-01-19 1980-11-18 Saskatchewan Power Corporation Space heating using off-peak electric heat storage
US6047105A (en) * 1992-03-16 2000-04-04 Lentz; Ervin Carl Off peak electric heat storage and discharge device
US6469280B2 (en) * 2000-05-26 2002-10-22 Bbc Industries, Inc. Electric heater hanging assembly for chafing dishes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164195A (ja) * 1984-02-06 1985-08-27 Matsushita Electric Ind Co Ltd 蓄熱装置
GB2160965A (en) * 1984-06-13 1986-01-02 Electricity Council Thermal storage device
DE9218708U1 (de) * 1992-05-12 1995-02-16 Türk & Hillinger GmbH, 78532 Tuttlingen Elektrische Heizvorrichtung mit PTC-Elementen
US6093909A (en) * 1997-08-29 2000-07-25 David & Baader - Dbk - Spezialfabrik Elektischer Apparate Und Heizwiderstande Gmbh Flow heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 333 (M - 443) 27 December 1985 (1985-12-27) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177840A1 (de) 2008-10-13 2010-04-21 Jean-Michel Perrier Heizkörper für Hausheizsysteme

Also Published As

Publication number Publication date
FR2875668B1 (fr) 2006-12-08
US20060086732A1 (en) 2006-04-27
FR2875668A1 (fr) 2006-03-24
CA2520817A1 (fr) 2006-03-23

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