EP1274281A2 - Dispositif de rayonnements infra-rouges commandé électriquement - Google Patents

Dispositif de rayonnements infra-rouges commandé électriquement Download PDF

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Publication number
EP1274281A2
EP1274281A2 EP02013857A EP02013857A EP1274281A2 EP 1274281 A2 EP1274281 A2 EP 1274281A2 EP 02013857 A EP02013857 A EP 02013857A EP 02013857 A EP02013857 A EP 02013857A EP 1274281 A2 EP1274281 A2 EP 1274281A2
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EP
European Patent Office
Prior art keywords
base body
fastening part
infrared radiator
ceramic
radiator according
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Withdrawn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
EP02013857A
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German (de)
English (en)
Other versions
EP1274281A3 (fr
Inventor
Manfried Steinmetz
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
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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 EP1274281A2 publication Critical patent/EP1274281A2/fr
Publication of EP1274281A3 publication Critical patent/EP1274281A3/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/032—Heaters specially adapted for heating by radiation heating

Definitions

  • the invention relates to an electrically operable, flat Infrared heater, with a base made of a ceramic Fiber material of low thermal inertia, which on its the to the irradiated side facing the heating coil.
  • the invention relates to such infrared radiators, which are attached to a mounting plate and one Form radiation system.
  • US 4,091,355 shows an electrically operable flat Infrared heater, which is a body made of electrically insulating Material of low thermal conductivity and less Has density.
  • the base body typically consists of a ceramic fiber material of low thermal inertia and can consist of aluminum silicate fibers.
  • the spotlight has of its surface facing the material to be irradiated For example, arranged on a meandering heating coil, which on Basic body is anchored.
  • To attach the heating coil one or more grooves are formed in the base body.
  • the grooves are made with a preferably ceramic material, such as Alumina, filled in. This ceramic material has a high density, a high thermal conductivity as well as electrically insulating properties.
  • the heating coil is held in this ceramic material in such a way that their turns are about a quarter to a half of the Are embedded circumferentially in the ceramic material during the Rest of the circumference of the turns are arranged free-standing.
  • the grooves formed in the base body have a width that is somewhat is less than the diameter of the heating coil.
  • US 4,207,672 shows a method for fastening Heating coils on the walls of ovens.
  • the furnace wall consists of Ceramic fibers.
  • the heating coil should be attached that a sizeable portion of the helix is not of one material is covered, but remains free.
  • Grooves worked into the furnace wall with a ceramic Fiber cement can be filled in completely or partially.
  • This fiber cement can be made from a mixture of short aluminum silicate fibers in aqueous solution of an inorganic Oxides, e.g. B. coloidal silicon oxide.
  • an inorganic Oxides e.g. B. coloidal silicon oxide.
  • the heating coil is embedded entirely or partially in the groove the heating coil is held by the ceramic fiber cement material.
  • US 3,500,444 shows an electric heating device in Connect to a hob that is household or commercial is usable.
  • the cooking surface has an insulating one Base body made of inorganic fibers in a filter casting molding process is generated so that it winds a heating coil securely and essentially completely encloses, and with the exception of a small area of the heating coils that remains free in the area of the surface of the base body. Essential is that the heating coil passes through lip-shaped areas of the cast fiber material is held.
  • the surface of the Cooking plate comes with a heat-permeable and liquid-tight Cover plate covered, preferably by mechanical Means is attached to the hotplate.
  • the cover plate can Glass exist.
  • the base body from the Fiber material and the top layer can additionally have one layer made of electrically insulating inorganic fibers be so that the heating coil is better insulated electrically.
  • a hardening agent Sodium silicate, coloidal silicon oxide, coloidal aluminum oxide, Aluminum phosphate, zirconium pyrophosphate or the like in Question.
  • the one bowl-shaped fastening part made of deep-drawn sheet metal has. Ceramic is placed in the deep-drawn fastening part Poured in fiber material and compacted into a base body. In the edge area, peripheral walls made of fiber material are attached. The base body made of the ceramic fiber material is on its side facing the material to be irradiated with a Provide heating coil.
  • pins are on the one hand introduced the ceramic material, which is also made of ceramic Can consist of material or steel. The heating coil is inserted into a groove using the pins and an adhesive glued.
  • the basic body from the fiber material and that Fastening parts made of metal have very different coefficients of thermal expansion on, but with a horizontal arrangement are of minor importance. Heating also heats up during operation the metal fastener accordingly.
  • the invention has for its object an infrared radiator to provide the type described above, for particular industrial applications also in hanging fixings can be used, particularly rapid heating and cooling allowed to have a small mass to be heated and moreover a simple and inexpensive production allowed.
  • this is the case with an infrared radiator described type achieved in that the infrared radiator has a fastening part made of ceramic material, that with the side of the Basic body is connected.
  • the invention is based on the idea that the basic body of the Infrared radiator mounting part no longer Metal, but from ceramic material. It will ceramic materials are used, as they are otherwise known for example in one-piece ceramic radiators are. This ceramic material has a sufficient mechanical Strength on so that the fastener is similar Provides properties typically found in metallic Housing are provided.
  • the ceramic fastener allows in particular the hanging attachment of the infrared radiators, be it on a ceiling construction or a vertical one Wall surface. Base body and fastening part adjust almost identical expansion behavior available. This prevents the occurrence of strong mechanical stresses between the fastening part and the base body if both Parts get warm during operation.
  • the new infrared heater has the Another advantage is that the material can also be adapted difficult contours is possible. Both the main body like the ceramic fastener can easily in Casting process manufactured separately and coordinated become.
  • the new infrared heater has two parts is formed on a similar shape as in one-piece Infrared radiators is known, which is made as a shaped body ceramic material can be cast. The new infrared heaters are therefore compatible with existing ceramic infrared radiators, so that there is advantageously the possibility of existing ones To convert systems and thus more precise and faster to be able to control.
  • the fastening part can be designed as a shell-shaped hollow body his. This design enables a good coordination on the shape of the body. The vote can do so be taken that in the assembled state between the Back of the base body and the front of the fastening part a cavity is created that is not only an additional insulating one Has an effect, but also for easy accommodation the electrical connection wires can serve for the heating coil.
  • the external design can easily be coordinated be that overall a compact infrared heater with one with regard to the base body and the fastening part matching outline is created. This outline can match the outline correspond to known infrared radiators, so that a corresponding Interchangeability is given.
  • the fastener on the side facing away from the base body with a metal layer to provide.
  • the metal layer can be made of gold, platinum or another, at the occurring operating temperatures non-oxidizing metal.
  • the ceramic adhesive can also be ceramic fiber material contain. So that the adhesive also has one on the ceramic material of the fastener and the fiber material expansion behavior of the base body, which a secure and permanent connection between the fastening part and basic body enables, even if such ceramic infrared radiators accordingly often and frequently is switched on.
  • the fastening part with the Base body is connected to form a cavity.
  • This Design allows to shape the main body the fiber material a plate-shaped starting material use, the outline of the size of the respective infrared emitter and the connection option with the fastening part can be matched.
  • the educated Cavity can also be used to house the electrical Connection wires for the heating coil.
  • the fastening part a protruding one on its side facing the base body circumferential edge and on its side facing away from the base body a protruding base for attaching the infrared heater using a mounting set.
  • the peripheral edge gives the base made of the fiber material support and fulfills otherwise functions on the housing side to protect the infrared heater.
  • the base used to fix the spotlight can be made in one piece with the fastener and be shaped. It is particularly advantageous if the base body has a circumferential recess into which the above engages peripheral edge of the fastening part and is glued in. This circumferential depression can, for example be provided in the rear corner area of the base body, so that an L-shaped adhesive connection is created, which is over a advantageously extends large area. But it is also possible to provide the adhesive connection elsewhere.
  • the design of the base body on its to be irradiated Well-facing side and especially the installation of the heating coil allows different options. It is advantageous if the base body made of ceramic fiber material less thermal inertia on its side facing the material to be irradiated Side has a groove, in the bottom of which the heating coil is anchored with a ceramic adhesive. The width of the groove is advantageously matched to the diameter of the heating coil, as well as the depth of the groove.
  • a ceramic adhesive can be used, for example the ceramic glue, which is also used for connection between base body and fastener is used.
  • Such an adhesive is in one such amount attached to the bottom of the groove that the heating coil after being pressed into part of its circumference in the adhesive is embedded.
  • the heating coil can be in the groove of the base body be anchored flush. So the heating coil is to the surface of the basic body set back protected, so that the risk of damage to the heating coil is largely is eliminated. Nevertheless, the essential part of the heating coil remains who faces the good to be irradiated, freely, what for rapid heating and cooling of the infrared heater or the heating coil makes sense.
  • the base body made of the ceramic fiber material can at least on part of its surface with a hardened layer or solidified with a ceramic glaze. This relates especially on the surface facing the material to be irradiated and possibly also on the edge areas of the base body, in particular to those areas in which the base body with the fastening part is connected.
  • This hardened layer or the ceramic glaze gives the body in the area of Surface a higher mechanical strength. So that becomes a Abrasion protection, which is also for long-term use of the Infrared radiator with regard to the stresses that occur makes sense.
  • the base body is made of ceramic Fiber material and the fastening part made of ceramic Material are formed as a molded body.
  • the design as for example, moldings that can be produced by a casting process allows a good adjustment between the body and Fastener together so that the connection of the two Parts over the glue created no problems. That is at the same time a simple and inexpensive way to manufacture the individual parts of the infrared radiator.
  • the infrared radiator 1 shown in Fig. 1 has a base body 2 made of ceramic fiber material low thermal Indolence.
  • the infrared radiator 1 also has one Fastening part 3 made of ceramic material.
  • the base body 2 faces the material to be irradiated Page 4 provided with a heating coil 5, for example spirally in the area of the side 4 on the base body 2 is attached.
  • a groove 6 can be provided for fastening, whose width and depth on the diameter of the heating coil 5 so is coordinated that the heating coil 5 in the groove 6 flush can be accommodated.
  • the heating coil 5 is at the bottom of the groove of a ceramic adhesive 7 held in which the heating coil 5 is embedded with part of its circumference.
  • the embedding in the adhesive 7 is less than 180 °.
  • the base body 2 has the material to be irradiated on it facing away from page 8 is essentially flat, parallel to side 4.
  • a recess 9 is provided which all around the basic body, for example, which is delimited by square 2 is provided.
  • the surface 10 of the base body 2 is especially in the edge area and in the area of page 4 with provided a hardened layer 24 which improves the Dimensional stability and the mechanical strength of the base body serves. It is important that the hardened layer 24 also extends over the area of the recess 9 in which the Adhesive 14 is applied.
  • the hardened layer 24, too can be formed as a baked glaze, can also extend over the entire surface 10 of the base body 2, So including the page 8.
  • the mounting part 3 is with provided with a glaze 11, which is particularly on the outer Back of the fastening part 3 extends. The glaze 11 can but also over the entire free surface of the fastening part 3 extend.
  • the fastening part 3 essentially fulfills the housing function. It also serves to attach the infrared heater 1 z. B. on a mounting plate 12.
  • the fastening part 3 has a bowl-shaped Configuration and is in outline to the outline of the Base body 2 adapted. On the body 2 facing The fastening part 3 has a projecting edge 13, which engages in the circumferential recess 9 of the base body 2.
  • the connection between base body 2 and fastening part 3 is brought about with the aid of a heat-resistant adhesive 14, which can also contain ceramic fiber material. It This creates a permanent, robust connection between fastening part 3 and base body 2, which also is not lost under normal operating conditions.
  • attachment portion 3, adhesive 14 and base body 2 have similar coefficients of expansion on.
  • the Fastening part 3 Due to the bowl - shaped shape of the Fastening part 3 is after connection to the base body included a cavity 15 that is not just an additional one Provides insulation backwards, but also for Housing connection wires 16 and 17 for the electrical Supply of the heating coil 5 is used. Since the base body 2 ceramic fiber material and the fastening part 3rd also made of ceramic material, it is not necessary isolate the leads 16 and 17 at this point.
  • the fastening part 3 carries a base on its back 18 for receiving a mounting set 19, with which ultimately the entire infrared radiator 1 in an opening of the mounting plate 12 is anchored or fastened. Training such Fastening sets 19 and base 18 are known.
  • the base has one or more openings 20, which the implementation the connecting wires 16 and 17 through the base 18 and in serve the cavity 15. The protruding from the base 18 Ends of the connecting wires 16 and 17 are in a known manner electrically isolated and provided with terminals.
  • Fig. 2 shows the spiral shape of the groove 6 on the side 4 of the infrared radiator which is to be irradiated 1.
  • the cavity 15 between the base body 2 and the fastening part 3 enables the connection wires to be accommodated in a simple manner 16 and 17 for this configuration.
  • the fastening part 3 completely encloses the edge of the base body 2 and extends to the surface 10 of the one to be irradiated Well facing side 4 of the base body 2.
  • the adhesive 14 is in the Edge area and on page 8 of the base body over the entire surface arranged. In particular on the one facing the mounting plate 12
  • the rear of the fastening part 3 is a metal layer 21 applied.
  • the metal layer 21 is in the form of a coating in addition to the glaze 11 outside on the back of the fastener 3 provided.
  • the metal layer is made of gold, Platinum or another, at the occurring operating temperatures non-oxidizing metal.
  • the base body 2 is provided with a glaze 11 on its surface 10.
  • the fastening part 3 has two bases 18 with one each Opening 20 for the passage of the connecting wires 16 and 17. In this way there is a meandering arrangement of the groove 6 possible with the heating coil 5, as can be seen in FIG. 4. 3 and 4 it can be seen that for anchoring the Helix 5 instead of the adhesive 7 brackets 22 are used can be placed at a distance from each other.
  • the fastening part 3 directly surrounds the base body 2 without forming the cavity 15.
  • Fastening part 3 and base body 2 are dome-shaped and with the adhesive 14 glued together over the whole area or in some areas.
  • the the Opening 20 of the fastening part 3 forming base 18 continues in a screw base 23, which is standard as an E-27 screw base can be trained.
  • the metal layer 21 covers the back of the fastening part 3 on the outside.
  • the surface 10 of the base body 2 is here as a hardened layer 24 formed or provided with such a hard layer 24.
  • the hardened layer 24 can also extend over the edge region of the Base body 2 and also extend over its entire surface. It is particularly important that the hardened Layer 24 on the base body 2 also over that of the fastening part 3 facing side 8, that is, an area in which the connection between base body 2 and fastening part 3 is made by the adhesive 14.
  • the heating coil 5 is on the surface 10 with clips 22 attached above.
  • Fig. 6 shows the spiral arrangement.
  • the metal layer 21 On the back of the fastening part 3 is the metal layer 21 arranged, through which the radiation on the back of the Infrared radiator 1 is minimized.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Radiation-Therapy Devices (AREA)
EP02013857A 2001-07-04 2002-06-22 Dispositif de rayonnements infra-rouges commandé électriquement Withdrawn EP1274281A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10132414 2001-07-04
DE2001132414 DE10132414B4 (de) 2001-07-04 2001-07-04 Elektrisch betreibbarer, flächiger Infrarotstrahler

Publications (2)

Publication Number Publication Date
EP1274281A2 true EP1274281A2 (fr) 2003-01-08
EP1274281A3 EP1274281A3 (fr) 2005-04-06

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EP02013857A Withdrawn EP1274281A3 (fr) 2001-07-04 2002-06-22 Dispositif de rayonnements infra-rouges commandé électriquement

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EP (1) EP1274281A3 (fr)
DE (1) DE10132414B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2891136A1 (fr) * 2005-09-29 2007-03-30 Mediprema Dispositif de chauffage radiant pour le rechauffement du corps humain
ITMI20081904A1 (it) * 2008-10-28 2010-04-28 Ansaldo Ricerche S P A Gassificatore e metodo di accensione di detto gassificatore
WO2017137018A1 (fr) * 2016-02-11 2017-08-17 Elstein-Werk GmbH & Co. KG Radiateur à infrarouge
US10203108B2 (en) 2014-08-14 2019-02-12 De Luca Oven Technologies, Llc Vapor generator including wire mesh heating element
US10912306B2 (en) 2013-12-16 2021-02-09 De Luca Oven Technologies, Llc Continuous renewal system for a wire mesh heating element and a woven angled wire mesh

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207672A (en) * 1978-12-18 1980-06-17 Aerospex Corporation Heater element mounting
DE2853015A1 (de) * 1978-12-07 1980-06-19 Alfred Eisenschink Waagrecht anzuordnender flaechenstrahler
DE19812188C1 (de) * 1998-03-19 1999-09-02 Steinmetz Elektrisch betreibbarer, stabförmiger Infrarotstrahler
DE19841674A1 (de) * 1998-09-11 2000-03-23 Manfried Steinmetz Elektrisch betreibbarer, flächiger Infrarotstrahler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1738290U (de) * 1956-10-29 1957-01-24 Elstein Werk H Steinmetz & Soh Keramik - dunkelstrahler.
US3500444A (en) * 1968-01-16 1970-03-10 Johns Manville Electrical heating unit with an insulating refractory support
DE2216651B2 (de) * 1972-04-07 1975-04-10 Adolf Illig Maschinenbau, 7100 Heilbronn Heizung zur Erwärmung von thermoplastischen Kunststoffolien oder -platten
US4091355A (en) * 1977-01-19 1978-05-23 Btu Engineering Corporation Anchored coil heater
GB8625556D0 (en) * 1986-10-25 1986-11-26 Micropore International Ltd Radiant heaters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853015A1 (de) * 1978-12-07 1980-06-19 Alfred Eisenschink Waagrecht anzuordnender flaechenstrahler
US4207672A (en) * 1978-12-18 1980-06-17 Aerospex Corporation Heater element mounting
DE19812188C1 (de) * 1998-03-19 1999-09-02 Steinmetz Elektrisch betreibbarer, stabförmiger Infrarotstrahler
DE19841674A1 (de) * 1998-09-11 2000-03-23 Manfried Steinmetz Elektrisch betreibbarer, flächiger Infrarotstrahler

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2891136A1 (fr) * 2005-09-29 2007-03-30 Mediprema Dispositif de chauffage radiant pour le rechauffement du corps humain
ITMI20081904A1 (it) * 2008-10-28 2010-04-28 Ansaldo Ricerche S P A Gassificatore e metodo di accensione di detto gassificatore
WO2010049786A3 (fr) * 2008-10-28 2010-12-16 Ansaldo Energia S.P.A. Gazéificateur et procédé d’allumage dudit gazéifieur
US10912306B2 (en) 2013-12-16 2021-02-09 De Luca Oven Technologies, Llc Continuous renewal system for a wire mesh heating element and a woven angled wire mesh
US10203108B2 (en) 2014-08-14 2019-02-12 De Luca Oven Technologies, Llc Vapor generator including wire mesh heating element
WO2017137018A1 (fr) * 2016-02-11 2017-08-17 Elstein-Werk GmbH & Co. KG Radiateur à infrarouge

Also Published As

Publication number Publication date
DE10132414A1 (de) 2003-01-30
EP1274281A3 (fr) 2005-04-06
DE10132414B4 (de) 2005-12-22

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