EP1840483A2 - Radiateur électrique - Google Patents

Radiateur électrique Download PDF

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Publication number
EP1840483A2
EP1840483A2 EP20070006132 EP07006132A EP1840483A2 EP 1840483 A2 EP1840483 A2 EP 1840483A2 EP 20070006132 EP20070006132 EP 20070006132 EP 07006132 A EP07006132 A EP 07006132A EP 1840483 A2 EP1840483 A2 EP 1840483A2
Authority
EP
European Patent Office
Prior art keywords
electric radiator
heating plate
electrically heating
frame
gap
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Withdrawn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
EP20070006132
Other languages
German (de)
English (en)
Inventor
Paolo Piuri
Stefano Pozzi
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.)
Best Fire Srl
Original Assignee
Best Fire Srl
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
Priority claimed from ITMI20060110 external-priority patent/ITMI20060110U1/it
Priority claimed from ITMI20060111 external-priority patent/ITMI20060111U1/it
Priority claimed from ITMI20060212 external-priority patent/ITMI20060212U1/it
Application filed by Best Fire Srl filed Critical Best Fire Srl
Publication of EP1840483A2 publication Critical patent/EP1840483A2/fr
Withdrawn legal-status Critical Current

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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
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • 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
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/06—Casings, cover lids or ornamental panels, for radiators

Definitions

  • an electric radiator having a layer of ferromagnetic material, for application of magnetized foils with decorative images thereon.
  • Patent application WO 2006/106387 discloses an electric radiator comprising a heating panel, formed of a laminate, which may be hung on a wall.
  • This panel has two outer layers of thermosetting resin.
  • At least one of the two outer layers may be screen printed; otherwise a screen printed cloth may be permanently bonded to the thermosetting resin.
  • US - B2 - 6,917,753 discloses an electric radiator having a heating panel, formed of a laminate, which may be hung on a wall.
  • One side of the heating panel has a decoration on it, preferably glued to the heating panel.
  • these devices can act both as heaters (operating by either radiation or convection) and as decorative elements for residential environments.
  • the purpose of the present inventors is to obviate at least some of prior art drawbacks and particularly the drawback set out hereinbefore.
  • numeral 1 designates an electric radiator comprising a frame 2 and an electrically heating plate 3, held by the frame 2.
  • the electrically heating plate 3 has two electrically insulating layers 35, 36 and one layer 34 of electrically resistive material between the two electrically insulating layers 35, 36.
  • the two layers 35, 36 may be made of glass reinforced plastics (a composite material composed of fiberglass and plastic resin, generally polyester, vinylester or epoxy resin).
  • the electrically resistive layer 34 may be based on graphite or a graphite impregnated material.
  • At least one pair of copper collectors at opposite ends of the plate, allow current to pass across the electrically resistive layer 34, which is thereby heated through the Joule effect.
  • a product of this type is sold by Innovazioni S.r.l., based at Comignago (NO), Italy, under the trade name "Termo Slim” and is disclosed in Patent application WO 2006/106387 .
  • the electrically heating plate 3 may be obviously also manufactured using other techniques, e.g. screen printed resistors or resistive films applied on insulating supports, like those disclosed in patent application WO2005/022954 .
  • Another suitable technique consists in interposing a resistive circuit between the layers of dielectric insulating material, which circuit may be formed using different technologies, such as metal sheet etching, ink or paste printing, resistive wire embedding, as currently described on the website www.elmatsrl.it.
  • the electrically heating plate 3 is formed in such a manner as to provide less heat along the edges, for reduced heat transmission through the frame 2.
  • the electrically heating plate 3 further comprises a layer of ferromagnetic material 32 which is joined to one of the two electrically insulating layers 35 or 36.
  • a poster i.e. a film, sheet, magnetized web material 33 with a decorative image thereon, such as a painting or photographic image may be removably applied to the electrically heating plate 3.
  • a user may buy several magnetized posters 33, with different decorative subjects and select them as desired.
  • the ferromagnetic layer is made of a soft iron foil 32, having a thickness of 0.3 to 0.5 mm, which is joined by adhesive to one of the electrically insulating layers 35, 36 of the electrically heating plate 3.
  • This soft iron foil is corrosion-protected by a coating of synthetic material 321, such as a polymer material.
  • This protective polymer layer 321 may be applied by powder electrostatic coating and high temperature heating (about 170 to 220°C) for powder paint polymerization.
  • the powder paint may be a polyester or polyurethane resin.
  • the protective polymer layer 321 thus obtained may have a thickness from 30 to 70 ⁇ m.
  • the iron foil may be protected by a PVC film.
  • Graphical elements may be present on the protective coating 321.
  • the electric radiator may be used as a decorative element even with no magnetized poster.
  • the pigments applied to the polymer layer 321 are at least partly, heat sensitive pigments.
  • These pigments have the property of reversibly changing color when temperature exceeds a threshold value.
  • the heat sensitive pigments used herein may be, for example, those sold by MATSUI under the trademark CHROMICOLOR®, and advertised on the website www.matsuicolor.com.
  • the magnetized foil 33 comprises a layer of magnetic rubber 331, a material that can be continuously used at temperatures to at least 80°C thanks to its high Curie temperature.
  • Such magnetic rubber may be formed of a combination of strontium or barium ferrite with synthetic rubber or PVC matrices and is sold by SAIMAG S.r.l., Italy, Pogliano Milanese (MI), 20010 under the tradename "Bonded ferrite”.
  • the magnetic rubber is preferably of the anisotropic type and its thickness is less than about 1 mm.
  • the thickness of the magnetic rubber 331 is about 0.5 mm.
  • the decorative image on the polyester fabric may be obtained by decorative techniques using sublimable inks.
  • the pigments applied to the film 332 may include heat sensitive pigments.
  • the electrically heating plate 3 can be supplied with 220 Volts and its thickness, including the ferromagnetic layer 32, may be from 1.5 to 3.5 mm, preferably from 1.9 to 3.2 mm.
  • Preferred sizes for the heating plate 3 are 60 x 40 cm, 60 x 80 cm and 60 x 100 cm respectively.
  • the power output of the electrically heating plate 3 is of the order of 700 to 900 ⁇ W m 2 .
  • means 4 are provided for adjusting the temperature of the electrically heating plate 3 (typically a thermostat in contact with the plate 3) or the surrounding environment (e.g. a thermostat with a Radio Frequency transmitter).
  • a heat insulating panel 5 is further provided, which is also held by the frame 2 and spaced from the electrically heating plate 3 to define a gap 6 therewith.
  • the use of the heat insulating panel 5, which is spaced from the heating plate 3 to define the gap 6, provides an improved heat radiation pattern, with ambient air being better heated than the wall on which the apparatus hangs.
  • the heat insulating panel 5 preferably has a thermal transmittance coefficient of less than 8 ⁇ W m 2 ⁇ K .
  • the heat insulating panel 5 has a thermal transmittance coefficient of less than 6 ⁇ W m 2 ⁇ K .
  • the heat insulating panel 5 may be, for example, a polyethylene panel or a polyethylene and aluminum laminate - having a thickness of about 3 mm - like those sold by ALCAN under the trademarks DIBOND® and ALUCOBOND®.
  • the heat insulating panel 5 may be a PVC foam panel preferably coupled with a metal facing.
  • the frame 2 has a plurality of apertures 21 arranged along at least two opposite sides of such frame 2 to allow natural air circulation through the gap 6.
  • the gap 6 creates a "chimney effect" which enhances air heating even when the radiator is far from the walls.
  • An electric fan may be optionally placed in the gap to provide forced air circulation within the gap.
  • one metal layer preferably faces toward the gap 6, for better reflection of infrared radiation.
  • the electric radiator further comprises lighting means 7 located in the gap 6.
  • both the electrically heating plate 3 and the heat insulating panel 5 are held in grooves 22, 23 formed in the frame 2.
  • the grooves 22, 23 may be formed in longitudinal fillets 122, 123 interconnected by plate-like transverse ribs 124.
  • the frame 2 may further have fillet elements 11 which are received in housings 10 formed in the transverse plate-like ribs 124 and removably held by fastener means 87, 88, 89.
  • the frame 2 is preferably made of polyamide or a polyamide-based material.
  • the electric radiator is designed to be hung on a wall.
  • the electric radiator may be reversibly connected to a ground mounted base 40.
  • Such base 40 is adapted to hold the frame 2 in an inclined position with respect to the floor, at an angle of 60° to 80°.

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)
EP20070006132 2006-03-27 2007-03-26 Radiateur électrique Withdrawn EP1840483A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI20060110 ITMI20060110U1 (it) 2006-03-27 2006-03-27 Radiatore elettrico
ITMI20060111 ITMI20060111U1 (it) 2006-03-27 2006-03-27 Radiatore elettrico
ITMI20060212 ITMI20060212U1 (it) 2006-06-07 2006-06-07 Radiatore elettrico

Publications (1)

Publication Number Publication Date
EP1840483A2 true EP1840483A2 (fr) 2007-10-03

Family

ID=38222415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070006132 Withdrawn EP1840483A2 (fr) 2006-03-27 2007-03-26 Radiateur électrique

Country Status (2)

Country Link
EP (1) EP1840483A2 (fr)
CA (1) CA2583021A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009112860A1 (fr) * 2008-03-13 2009-09-17 Roco (Europe) Limited Ensemble radiateur
FR2980558A1 (fr) * 2011-09-28 2013-03-29 Atlantic Industrie Sas Dispositif de chauffage ventilo-convecteur et installation de chauffage comprenant un tel dispositif
CN103591660A (zh) * 2013-11-03 2014-02-19 甘瑞群 变频制热空调
WO2019063837A1 (fr) * 2017-09-29 2019-04-04 Rede Investments B.V. Élément décoratif à fonction de chauffage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009112860A1 (fr) * 2008-03-13 2009-09-17 Roco (Europe) Limited Ensemble radiateur
FR2980558A1 (fr) * 2011-09-28 2013-03-29 Atlantic Industrie Sas Dispositif de chauffage ventilo-convecteur et installation de chauffage comprenant un tel dispositif
EP2574854A1 (fr) * 2011-09-28 2013-04-03 Atlantic Industrie Dispositif de chauffage ventilo-convecteur et installation de chauffage comprenant un tel dispositif
CN103591660A (zh) * 2013-11-03 2014-02-19 甘瑞群 变频制热空调
WO2019063837A1 (fr) * 2017-09-29 2019-04-04 Rede Investments B.V. Élément décoratif à fonction de chauffage

Also Published As

Publication number Publication date
CA2583021A1 (fr) 2007-09-24

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