EP1306620B1 - Heizgerät mit Infrarotstrahlung - Google Patents

Heizgerät mit Infrarotstrahlung Download PDF

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Publication number
EP1306620B1
EP1306620B1 EP02356207A EP02356207A EP1306620B1 EP 1306620 B1 EP1306620 B1 EP 1306620B1 EP 02356207 A EP02356207 A EP 02356207A EP 02356207 A EP02356207 A EP 02356207A EP 1306620 B1 EP1306620 B1 EP 1306620B1
Authority
EP
European Patent Office
Prior art keywords
infrared radiation
heating device
type
tray
transverse
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.)
Expired - Lifetime
Application number
EP02356207A
Other languages
English (en)
French (fr)
Other versions
EP1306620A1 (de
Inventor
M. Jean-Michel Mercier
M. Antoine Coniglio
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.)
Sopara
Original Assignee
Sopara
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Filing date
Publication date
Application filed by Sopara filed Critical Sopara
Publication of EP1306620A1 publication Critical patent/EP1306620A1/de
Application granted granted Critical
Publication of EP1306620B1 publication Critical patent/EP1306620B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/04—Stoves or ranges heated by electric energy with heat radiated directly from the heating element
    • F24C7/043—Stoves

Definitions

  • the present invention relates, in general, to a device heating with infrared radiation. More particularly, this invention is interested in a heating device with low thermal inertia, emitting a radiation in the "long" infrared range, and intended for various industrial applications such as heating, cooking or drying, requiring this type of radiation.
  • a heating device is already known from US-A-3,317,707.
  • the "long” infrared corresponds to a length about 5 ⁇ m
  • the "average” infrared corresponds to a wavelength of the order of 2.5 microns.
  • Infrared radiation emitters are currently known "long" which use heated plates for the rear by means of quartz or infrared lamps, which are expensive, fragile and low life. Electric heating resistors are also used shielded, having a high thermal inertia, which may represent a disadvantage in a number of applications. This is the case example, in the baking processes of mastic intervening in the industry automobile, or for other similar heat treatments, which require the use of "long” infrared radiation, but require simultaneously a thermal inertia as low as possible.
  • the present invention aims to eliminate the disadvantages of current "long" infrared radiation emitters, by providing a solid heating device, reliable and economical, and low thermal inertia, likely to replace these current transmitters.
  • the idea underlying the present invention is to combine an element emitting "average” infrared radiation, and another element which diffuses and re-emits this radiation, in the form of a radiation "long” infrared, this other element having a low thermal inertia.
  • the element electrically and thermally insulating intermediate, supporting the heating metal ribbons is constituted by a superposition of two or several plates of ceramic material, preferably of fiber ceramic long, the latter material having the advantage of presenting no danger.
  • the previous element of the plate or tray type is advantageously a metallic element of relatively small thickness and mass; moreover, this metallic element is surface treated to promote thermal diffusion and re-emission of "long" type infrared radiation.
  • this one is advantageously provided, on its longitudinal and / or transverse folded edges, spacers that hold the front element of the plate or hood type to distance from the bottom element, thus avoiding direct contact between these two elements. This minimizes the "thermal bridge" between the elements, which helps to reduce thermal inertia.
  • a front element shaped as a hood In the case of a front element shaped as a hood, this one has longitudinal and transverse folded edges that overlap, externally and without direct contact, the longitudinal folded edges and corresponding cross-sections of the bottom element, shaped as a tray.
  • the element device is thus retained, against the risk of lifting or fall (depending on the orientation of the device), again by minimizing the "bridge thermal".
  • the prior element of the like plate or hood door in its central region, a probe of temperature which is especially provided for the automatic regulation of the temperature of the heating device.
  • this heating device may comprise, on one of its sides longitudinal or transversal, an electrical connection box, used for feeding the heating tape (s) from the electrical source outside, and also for connecting the temperature sensor.
  • the invention thus provides a heating device panel shape, of relatively small thickness, therefore compact, and simple and solid mechanical structure, therefore reliable and economical, high high efficiency and reactivity, and can easily be regulated by temperature, which makes it particularly suitable for applications for thermal treatments requiring radiation Infrared type "long".
  • the heating device is presenting as a rectangular panel designated globally by the reference 2, consists of three main elements, namely: an element of bottom 3, an intermediate element 4 and an anterior element 5.
  • the bottom element 3 is shaped in rectangular tray, this element 3 being metallic and serving as support for the other two elements 4 and 5.
  • This tray 3 has two longitudinal folded edges 6, and two folded edges 7.
  • Four metal spacers 8 are welded on the edges longitudinal folds 6 of the tray 3, and protrude above this tray, in the regions of the four corners of the panel 2.
  • the intermediate element 4, received inside the bottom 3, is composed in the example shown, three superposed rectangular plates 9, 10 and 11, ceramic material including long fibers.
  • the front element 5 is in the form of a rectangular cover, metal, provided with two longitudinal folded edges 13 and two folded edges
  • the dimensions (length and width) of the hood 5 are slightly greater than those of the tray 3.
  • This cover 5 is thin, therefore of low mass, which reduces its thermal inertia.
  • he is treated on the surface, by darkening, to improve thermal diffusion and radiation.
  • the cover 5 is placed on the four spacers 8, so that, given the dimensional relationship shown above, its folded edges longitudinal 13 and transverse 14 cover externally, and without contact direct, the longitudinal folded edges 6 and transverse 7 corresponding tray 3.
  • the various folded edges 6, 7, 13 and 14 comprise, for example to mid-length, holes such as 15 and 16 that allow the passage of organs 17 of the kind rod or screw, providing a connection (with clearance) between the cover 5 and the Tray 3 - see in particular Figures 3 and 4.
  • the panel 2 comprises a housing of electrical connection 18, allowing the power supply of the ribbon heating 12 from an external power source, via a electric cable (not shown).
  • the connection box 18 also allows the connection of a temperature probe 19, such as a thermocouple, placed under the hood 5, in the center of it.
  • the entire structure, previously described, can be mounted on two lower profiles 20, parallel to each other, which allow its fixing on any frame or other support structure.
  • the ribbon 12 covered by an electric current, emits inside this panel 2 a "average” infrared radiation.
  • the cover 5 then reissues, by broadcasting it to outside, a "long” infrared radiation, which ensures the treatment desired thermal, depending on the application.
  • the temperature probe 19 allows a regulation of the heating temperature of the panel 2.
  • the panel 2 constitutes in particular a "heating floor”.
  • the same panel 2 is also usable horizontally but with its hood 5 turned down, in which case it constitutes a "heating ceiling", or vertically to constitute a "heating partition”.
  • this panel 2 can be used alone or in combination to other similar panels, of the same orientation or different orientation, according to the applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Cookers (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Electric Ovens (AREA)
  • Control Of Resistance Heating (AREA)
  • Central Heating Systems (AREA)

Claims (8)

  1. Vorrichtung zum Heizen mit Infrarotstrahlung, insbesondere Vorrichtung, die Infrarotstrahlen des "langwelligen" Typs ausstrahlt, wobei diese Vorrichtung wie ein Paneel (2) aussieht, das in Kombination zusammengesetzt ist aus:
    einem Bodenelement (3) in Form einer Platte oder einer Wanne, das den anderen Elementen (4, 5) des Paneels (2) als Auflager dient;
    einem Zwischenelement (4), das mindestens ein Metall-Heizband (12) trägt, das mit einer außenliegenden Stromquelle verbunden werden kann und dann eine Infrarotstrahlung des "mittelwelligen" Typs abgibt; und
    einem in Form einer Platte oder Abdeckung gestalteten vorderen Element (5) mit schwacher thermischer Trägheit, das vor dem Zwischenelement (4) angebracht ist und eine Infrarotstrahlung des "langwelligen" Typs abstrahlen kann,
    dadurch gekennzeichnet, dass das Zwischenelement (4) elektrisch und thermisch isolierend ist, und dadurch, dass das Metall-Heizband (12) auf dessen dem Bodenelement (3) entgegengesetzten Fläche angeordnet ist.
  2. Vorrichtung zum Heizen mit Infrarotstrahlung nach Anspruch 1, dadurch gekennzeichnet, dass das elektrisch und thermisch isolierende Zwischenelement (4), das das Metall-Heizband oder die Metall-Heizbänder (12) trägt, gebildet ist durch eine Übereinanderlagerung von zwei oder mehreren Platten aus Keramikmaterial (9, 10, 11), vorzugsweise aus langfaseriger Keramik.
  3. Vorrichtung zum Heizen mit Infrarotstrahlung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das in Form einer Platte oder Abdeckung gestaltete vordere Element (5) ein metallisches Element relativ geringer Dicke und Masse ist, dessen Oberfläche behandelt ist, um die Wärmeausbreitung und die Abstrahlung der Infrarotstrahlung des "langwelligen" Typs zu begünstigen.
  4. Vorrichtung zum Heizen mit Infrarotstrahlung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das als Wanne ausgebildete Bodenelement (3) an seinen gefalzten Längskanten (6) und/oder Querkanten (7) mit Distanzstücken (8) versehen ist, die das in Form einer Platte oder Abdeckung gestaltete vordere Element (5) auf Abstand zum Bodenelement (3) halten, wodurch sie einen Kontakt zwischen diesen zwei Elementen (3, 5) verhindern.
  5. Vorrichtung zum Heizen mit Infrarotstrahlung nach Anspruch 4, dadurch gekennzeichnet, dass das als Abdeckung gestaltete vordere Element (5) gefalzte Längskanten (13) und Querkanten (14) hat, die an der Außenseite und ohne direkten Kontakt die gefalzten Längskanten (6) und Querkanten (7) des in Form einer Wanne gestalteten entsprechenden Bodenelements (3) überdecken.
  6. Vorrichtung zum Heizen mit Infrarotstrahlung nach Anspruch 5, dadurch gekennzeichnet, dass Haltemittel in der Art von Stift oder Schraube (17) vorgesehen sind, die mit Spiel die gefalzten Längskanten (13) und/oder Querkanten (14) des als Abdeckung gestalteten vorderen Elements (5) mit den entsprechenden gefalzten Längskanten (6) und/oder Querkanten (7) des als Wanne gestalteten Bodenelements (3) verbinden.
  7. Vorrichtung zum Heizen mit Infrarotstrahlung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das in Form einer Platte oder Abdeckung gestaltete vordere Element (5) in seinem zentralen Bereich eine Temperatursonde (19) trägt, die insbesondere für die automatische Regulierung der Temperatur dieser Heizvorrichtung (2) vorgesehen ist.
  8. Vorrichtung zum Heizen mit Infrarotstrahlung nach Anspruch 7, dadurch gekennzeichnet, dass sie an einer ihrer Längs- oder Querkanten ein Stromanschlussgehäuse (18) für die Stromversorgung des Heizbands oder der Heizbänder (12) von der außenliegenden Stromquelle her und für den Anschluss der Temperatursonde (19) hat.
EP02356207A 2001-10-23 2002-10-21 Heizgerät mit Infrarotstrahlung Expired - Lifetime EP1306620B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0113684A FR2831244B1 (fr) 2001-10-23 2001-10-23 Dispositif chauffant a rayonnement infrarouge
FR0113684 2001-10-23

Publications (2)

Publication Number Publication Date
EP1306620A1 EP1306620A1 (de) 2003-05-02
EP1306620B1 true EP1306620B1 (de) 2005-09-14

Family

ID=8868619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356207A Expired - Lifetime EP1306620B1 (de) 2001-10-23 2002-10-21 Heizgerät mit Infrarotstrahlung

Country Status (5)

Country Link
EP (1) EP1306620B1 (de)
AT (1) ATE304684T1 (de)
DE (1) DE60206122T2 (de)
ES (1) ES2249548T3 (de)
FR (1) FR2831244B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220243921A1 (en) * 2021-01-29 2022-08-04 Koninklijke Fabriek Inventum B.V. Vehicle oven having an improved heating element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB864559A (en) * 1956-06-14 1961-04-06 Simplex Electric Co Ltd Improvements relating to electric heaters of the panel type
US3317707A (en) * 1964-08-24 1967-05-02 Mc Graw Edison Co Baseboard heater

Also Published As

Publication number Publication date
EP1306620A1 (de) 2003-05-02
FR2831244A1 (fr) 2003-04-25
ATE304684T1 (de) 2005-09-15
DE60206122T2 (de) 2006-06-22
FR2831244B1 (fr) 2004-03-12
ES2249548T3 (es) 2006-04-01
DE60206122D1 (de) 2005-10-20

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