EP1187512A2 - Corps de chauffe à rayonnement destiné à être placé sous une plaque de cuisson, en particulier une plaque vitro-céramique - Google Patents

Corps de chauffe à rayonnement destiné à être placé sous une plaque de cuisson, en particulier une plaque vitro-céramique Download PDF

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Publication number
EP1187512A2
EP1187512A2 EP01121344A EP01121344A EP1187512A2 EP 1187512 A2 EP1187512 A2 EP 1187512A2 EP 01121344 A EP01121344 A EP 01121344A EP 01121344 A EP01121344 A EP 01121344A EP 1187512 A2 EP1187512 A2 EP 1187512A2
Authority
EP
European Patent Office
Prior art keywords
counter bearing
insulating body
carrier shell
holder
radiant heater
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.)
Granted
Application number
EP01121344A
Other languages
German (de)
English (en)
Other versions
EP1187512A3 (fr
EP1187512B1 (fr
Inventor
Heinz Petri
Eugen Wilde
Ulrich Jenz
Bernhard Belz
Hans Mohr
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
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 DE20015496U external-priority patent/DE20015496U1/de
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1187512A2 publication Critical patent/EP1187512A2/fr
Publication of EP1187512A3 publication Critical patent/EP1187512A3/fr
Application granted granted Critical
Publication of EP1187512B1 publication Critical patent/EP1187512B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater

Definitions

  • the invention relates to a radiant heater according to the preamble of Claim 1.
  • this is a radiant heater for arrangement under a hob, such as a tempered glass or ceramic plate, with a Carrier shell, which carries an insulating body, on and / or in which a Heating zone forming radiator is arranged, and with an at least above an elongated temperature sensor projecting part of the heating zone Circuit breaker that runs between the heating zone and the hob, whereby the sensor from reaching through the insulating body and the carrier shell Fasteners is held.
  • a hob such as a tempered glass or ceramic plate
  • Carrier shell which carries an insulating body, on and / or in which a Heating zone forming radiator is arranged, and with an at least above an elongated temperature sensor projecting part of the heating zone Circuit breaker that runs between the heating zone and the hob, whereby the sensor from reaching through the insulating body and the carrier shell Fasteners is held.
  • Such radiant heaters usually have a temperature sensor, whose outer tube made of an insulating material, in particular Qarz or Quartz glass exists. It is either in the feeling of expansion itself of which included a pipe with a low coefficient of expansion forms in which there is a tension rod with a higher coefficient of expansion, or it is pushed onto an expansion tube.
  • the pipe is necessary to the necessary air or creepage distances in the space between Heating resistors and the plate through which the temperature sensor runs, sure. It should be noted that glass ceramic plates at Working temperature will be electrically conductive, so that here the necessary Insulation distances must be observed.
  • DE 91 13 992 describes a sensor attachment in the holding clips grasp the probe and pass through the insulating body and carrier shell, being a securing member behind the passage through the carrier shell have, which prevents pulling out of the carrier shell. Under another such sensor attachment serves to stop the sensor to prevent against the glass ceramic plate, which can break it. This can be used during tests and also when transporting or installing a hob occurrence.
  • the invention has for its object to provide a radiant heater of the above. To create a way in which, on the one hand, a secure sensor attachment is possible is and also the assembly of both sensor mounting and the Radiant heater and the further processing of the finished Radiant heaters can be improved.
  • the essence of the invention is that the fasteners are at least partially formed from the material of the carrier shell.
  • conventional fasteners are usually Breakthroughs or holes punched out on the carrier shell, for example, into which the fastening means then be introduced and defined.
  • waste falls in this process that can get caught on the punching tool and contaminate it.
  • the Punching tool must be cleaned or replaced if necessary. This takes a lot of time.
  • the punched openings or holes are also provided with protruding rags or nozzles that precisely fix the Prevent fasteners.
  • Metal sheet is preferably used as the material for the carrier shell.
  • Metal sheet is heat-resistant and has a relatively low weight. Nevertheless its load capacity is so great that it is able to close the insulator wear. But there could also be other heat-resistant materials, such as Ceramics or the like can be used.
  • the fastening means preferably consist of a holder for holding of the sensor and a counter bearing for fixing the holder.
  • the counter bearing advantageously has a compared to that reaching through the insulating body Section of the holder different course. According to one possibility the counter bearing can run obliquely or essentially transversely. So can for example a holding leg of the holder behind the insulating body be bent at right angles, to prevent pulling out.
  • the counter bearing can preferably with its entire or a large surface against the underside of the insulating body is placed on the holder. So there is a danger of the attachment tearing out the insulating body is reduced or eliminated.
  • the counter bearing from the carrier shell is particularly preferred out designed.
  • the counter bearing can be made up of several Formed lobes are formed on the carrier shell, on which the holder can be fixed.
  • the counter bearing is preferably but molded in one piece from the carrier shell, for example, by a punching process in which two are mirror-symmetrical incisions in each other Carrier shell are punched and the material between the both cuts can then be bent as a counter bearing becomes.
  • the holder can have an insertion slope for insertion of the holder and a locking edge for snapping one have barb-like end of the holder.
  • the holder for example two Holding leg, a piece can be bent up elastically. Reached he the locking edge, its barb-like end can Reach in under the locking edge and snap in.
  • the counter bearing can have all conceivable cross-sectional shapes, for example an inverted V-shaped cross section or one trapezoidal cross-section.
  • the middle section preferably has a substantially hat-shaped cross-section, with a Middle section of the counter-bearing in the shape of an arc in the direction of Insulating body has and two lobe-shaped Legs of the counter bearing are bent away from the insulating body.
  • the arched middle section can be support the underside of the insulating body without closing it damage, such as for example tapered middle sections could.
  • the middle section preferably wider than the two legs educated.
  • the counter bearing in a direction of Insulation facing bulge of the support shell is formed is, the bulge of the carrier shell in a complementary bulge on the insulating body protrudes.
  • the two are complementary Bulges on the carrier shell or on the insulating body enable them to be stacked one inside the other.
  • the holder can be an elongated section, or long Have holding legs that through the insulating body up to the counter bearing is enough.
  • the holder or the holding leg can preferably at least partially change or overlap and position it, for example by Press against the insulating body.
  • the holder can be a clamp with two Legs and a U- or O-shaped upper part for mounting of the feeler.
  • the upper part can reach over the sensor or overlap it and keep it positioned, in particular press against the insulating body.
  • the holder can be made in one piece with the Carrier shell to be connected, in which case the carrier shell forms the counter bearing.
  • the carrier shell the bottom of the insulator.
  • the holder can be from the carrier shell starting from the insulating body up to reach the feeler, for example through a recess or recording in the area of the upper section of the holder can protrude.
  • the holder is preferably integral with the carrier shell connected or worked out of it. So it is possible to make one by three incisions that a U form, elongated sheet metal strips separated from the carrier shell to work out and to angle or set up.
  • the insulating body can over the holder or at least one Legs of the same can be placed.
  • the holder can isolate the body self-piercing, at least partially protrude beyond and pick up the sensor. Either can the holder penetrate it by plugging on the insulating body or through a prefabricated slot in the Insulate protrude.
  • the invention also includes a radiant heater according to the The preamble of claim 1, in which part of the fastening means in a separate at least from the insulating body Counter bearing is anchored, the counter bearing behind the bottom of the insulating body facing away from the radiator is arranged without facing away from the insulating body To protrude underside of the carrier shell.
  • the counter bearing is preferably separate from the carrier shell formed, being between the insulating body and the carrier shell can be arranged anchored.
  • Counter bearing consists of an insulating and solid material, for example Vermiculite or the like. At least one can Legs of the fasteners are inserted. On Counter bearing can advantageously have the shape of a disk, especially with a large contact surface against the bottom of the Insulating. Other options are cylinder or Truncated cones.
  • FIG. 1 shows a top view of a radiant heater 11, in which an insulating edge 13 and a in a carrier shell 12 flat insulating body 14 are inserted.
  • the the bottom of the Insulating body 14 covering carrier shell 12 carries one Heater 16, which consists of an elongated, meandering arrangement Heating tape or the like.
  • the temperature monitor indicates this 18 an elongated, in the radiant heater 11th reaching sensor 19. This is done in a known manner having two different coefficients of thermal expansion Materials, especially one rod-shaped and that others surrounding this tubular, built up.
  • the sensor 19 covers part of the heating zone formed by heater 16, which is essentially the surface of the insulating body 14 occupies.
  • the sensor 19 extends a little over the Center of the radiant heater 11, with a Clip 28 on the insulating body 14 or an elevation 23 it is attached. A precise definition of the position the sensor is also considered advantageous for its function considered.
  • FIG. 2 shows in section the arrangement of the sensor 19 the insulating body 14 including its attachment.
  • an elevation 23 in the central region of the insulating body 14 on which the sensor 19 rests.
  • Under the survey 23 there is a room 24 which is approximately similar to that Elevation 23 is frustoconical.
  • the carrier shell 12 is arranged, the the insulating body 14 carries.
  • the bulge 37 protrudes here Carrier shell 12 in the space 24 on the underside of the insulating body 14.
  • a Counter bearing 38 is formed in one piece from the carrier shell 12. To produce the counter bearing 38 are two in essential U-shaped incisions 39 in the carrier shell 12 punched (Fig. 3).
  • the hat-shaped middle part 41 formed.
  • the descending stamp of a punch (not shown) separates the width of the middle part and, like with a chisel, points out the next one Retract the middle part 41.
  • the next step will be lobe-shaped legs 42 in the opposite direction cut out and set up.
  • the incisions 39 lie mirror-symmetrical to a central axis 40 through the counter bearing 38.
  • Four narrow connecting bars are not punched out 51, via which the counter bearing 38, in particular its Middle part 41, is connected to the carrier shell 12.
  • the material of the carrier shell 12, in particular the metal sheet stretched so that the two incisions 39 remain at the same distance from each other.
  • the Ends of the two legs 42 form locking edges 43 into which the barb-shaped ends 50 of the holder 45 can be latched.
  • the middle part 41 is wider than the two legs 42. He mainly serves as an attachment to the underside of the insulating body 14.
  • the hat-shaped cross section of the counter bearing 38 creates an insertion bevel that is used to insert the two Leg of the holder is used.
  • the holder 45 To fasten the holder 45, this is first by means of two bores which are formed in the insulating body 14, pushed through the insulator 14 until its at the end barbed ends 50 bent inside on the two Hit the chamfer of the counter bearing.
  • the holder 45 will due to the insertion bevel that widens in the direction of insertion expanded until he the two locking edges 43 to the Has reached ends of the two legs of the counter bearing.
  • the two barbed ends 50 of the holder 45 reach under the locking edges 43 and snap into them.
  • Fig. 4 shows in section the structure of a variation of Radiant heater 11. There is also the above the Insulating body 14 arranged glass ceramic plate 25 can be seen. In the room 24, between the insulating body 14 and the carrier shell 12, a frustoconical counter bearing 26 is inserted, which has approximately the dimensions of the room 24.
  • the counter bearing 26 consists in the example shown an insulating material, preferably compressed, for example Vermiculite or a similar in the field of Electric heat used solid insulation material.
  • a U-shaped bracket 28 is guided over the sensor 19 with its two elongated legs 29 the insulating body 14 penetrates and is in the counter bearing 26.
  • the Base section 30 engages between the two legs 29 the sensor 19 or presses it against the insulating body 14 or the top of the survey 23.
  • the Sensor 19 by means of the bracket 28 quasi against the counter bearing 26 nailed and so attached to the counter bearing or against the Insulating body 14 pressed.
  • An upward movement of the sensor 19 is prevented by the bracket 28. This lasts in essentially not in the insulating body 14 and tears this possibly on or destroyed it locally, but lies with the significantly larger area of the top of the counter bearing 26 on the underside of the elevation 23 of the insulating body 14 on.
  • the legs 29 of the bracket 28 can for better anchoring have a roughened surface or tip, for example in the manner of small barbs or the like instead of
  • a two-legged bracket 28 could also be a simple bent nail or the like, for example an angled nail, be used.
  • the sensor becomes 19 both securely overlapped and with the double Holding strength anchored in the counter bearing 26. It is possible, to fix the counter bearing 26 to the carrier shell 12.
  • FIG. 5 shows a variation of a radiant heater 11 similar to FIG. 4, the counter bearing 32 having a frustoconical shape shaped flat material, for example thin sheet.
  • the bracket 28 can also be used with both of them Legs 29 are securely anchored.
  • the Clamp 28 also directly without a counter bearing in the carrier shell 12 to be nailed.
  • the counter bearing only as a disc and not as a truncated cone, since especially those at the bottom of the elevation 23 of the Insulator 14 adjacent surface for the resilience of Sensor mounting counts.
  • the frustoconical formation of the counter bearing 32 has the advantage that at a structure of the radiant heater 11 by stacking of the individual parts the top of the counter bearing 32 up to or until just before the underside of the elevation 23 enough.
  • the counter bearing must be used to nail the clamp 28 not be held up against it, but is supported by the Carrier shell 12 from.
  • FIG. 6 in turn shows a variant of the sensor attachment, in which a stripe-shaped from the carrier shell 12 Sheet metal section on the two longitudinal and one end separated out and essentially vertically upwards is turned.
  • This upright from the carrier shell 12 protruding leg-shaped fastening strips 34 is sufficient through the insulating body 14 or the elevation 23 and stands about this about.
  • the sensor 19 is in a recess 35 is introduced and is against the top of elevation 23 pressed or prevented from moving upwards.
  • the Recess 35 can, on the one hand, approximately, as shown run parallel to the level of the heater 16 or preferably slightly rising from the edge, so that the sensor 19 can't slip out of her on her own.
  • the upper end 36 of the fastening strip 34 possible to fix the sensor 19.
  • the fastening strip 34 corresponding to the carrier shell 12, from one relatively thin sheet metal and by separating out this essentially has relatively sharp edges he when placing the insulating body 14 on the carrier shell 12 penetrate it without much effort. supports this is done by training the end as a top.
  • FIG. 7 A perspective view of a radiant heater 11 similar to FIG. 6 is shown in FIG. 7.
  • the insulating body 14 is only shown in the rear part of the carrier shell 12. It can thus be clearly seen how the fastening strip 34 is punched out or separated from the bottom of the carrier shell 12 on three sides and bent upward.
  • the sensor 19 is inserted and thus secured by the upper end 36 both from slipping out and against movement upwards.
  • the recess 35 can be designed such that it lies at least partially within the insulating body 14 in the edge region. So this must be a little displaced or pushed down when the sensor 19 is inserted with the advantage that it expands again after insertion and virtually closes the recess 35.
  • the senor 19 can be positioned not only directly against the insulating body 14 or its elevation 23, but also at any height between the top of the insulating body 14 and the bottom of the glass ceramic plate 25. This is also possible a clamp with a fixed eyelet or the like encompassing the sensor. possible.
  • the amount of work for a fastening strip in particular the separation according to FIGS. 6 and 7 is relative small to look at and enables without additional components a secure sensor attachment.
  • a big additional one Advantage can be achieved in that the sensor attachment or the fasteners hold down the Insulator 14 in the radiant heater 11, in particular against the carrier shell 12, form. Should the poking through of the fastening strip 34 through the insulating body 14 may pose problems it is possible to have a through slot in the insulating body 14 prefabricate.
  • the advantage of an insulating body as Counter bearing 26 is, inter alia, that no heat conduction via the clamp 28 into the space 24 or onto the carrier shell 12 is brought about.
  • an insulating tube for example made of ceramic, over which sensors are guided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Cookers (AREA)
EP01121344A 2000-09-07 2001-09-06 Corps de chauffe à rayonnement destiné à être placé sous une plaque de cuisson, en particulier une plaque vitro-céramique Expired - Lifetime EP1187512B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20015496U 2000-09-07
DE20015496U DE20015496U1 (de) 1999-09-09 2000-09-07 Strahlungsheizkörper

Publications (3)

Publication Number Publication Date
EP1187512A2 true EP1187512A2 (fr) 2002-03-13
EP1187512A3 EP1187512A3 (fr) 2002-12-18
EP1187512B1 EP1187512B1 (fr) 2004-11-10

Family

ID=7946195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121344A Expired - Lifetime EP1187512B1 (fr) 2000-09-07 2001-09-06 Corps de chauffe à rayonnement destiné à être placé sous une plaque de cuisson, en particulier une plaque vitro-céramique

Country Status (5)

Country Link
US (1) US6483084B2 (fr)
EP (1) EP1187512B1 (fr)
AT (1) ATE282287T1 (fr)
ES (1) ES2231366T3 (fr)
SI (1) SI1187512T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372190B (en) * 2000-12-16 2005-02-09 Ceramaspeed Ltd Cooking appliance with radiant electric heater

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0301164D0 (en) * 2003-01-18 2003-02-19 Ceramaspeed Ltd Temperature-responsive device
DE102005005520A1 (de) * 2005-02-01 2006-08-10 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung mit Temperatursensor und Kochfeld mit Heizeinrichtungen
DE102005030555A1 (de) * 2005-06-22 2007-01-04 E.G.O. Elektro-Gerätebau GmbH Sensoreinrichtung für eine Heizeinrichtung
DE102005031069A1 (de) * 2005-06-24 2007-01-11 E.G.O. Elektro-Gerätebau GmbH Elektromechanische Temperaturerfassung für ein Kochgerät und Verfahren zur Herstellung einer elektromechanischen Temperaturerfassung für ein Kochgerät
GB0608522D0 (en) * 2006-04-29 2006-06-07 Ceramaspeed Ltd Arrangement of radiant electric heaters
JP5647502B2 (ja) * 2010-02-23 2014-12-24 株式会社日立国際電気 熱処理装置、半導体装置の製造方法及び基板処理方法。
USD671364S1 (en) * 2011-01-31 2012-11-27 Techtronic Power Tools Technology Limited Portion of a grill
US20130192584A1 (en) * 2012-01-26 2013-08-01 General Electric Company Heating element mounting features for a cook top appliance
USD809049S1 (en) * 2015-12-11 2018-01-30 Chuango Security Technology Corporation Panoramic camera
DE102016224069A1 (de) * 2016-12-02 2018-06-07 E.G.O. Elektro-Gerätebau GmbH Kochgerät mit einer Kochplatte und einer Heizeinrichtung darunter
WO2018106614A1 (fr) 2016-12-07 2018-06-14 Ceramaspeed, Inc Appareil de chauffage par rayonnement électrique
USD921431S1 (en) * 2019-04-01 2021-06-08 Veeco Instruments, Inc. Multi-filament heater assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536981A1 (de) 1985-10-17 1987-04-23 Ako Werke Gmbh & Co Ueberhitzungsschutzschalter einer strahlungsbeheizung
DE9113992U1 (fr) 1991-11-12 1992-01-02 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234373A3 (fr) * 1986-02-26 1988-03-02 E.G.O. Elektro-Geräte Blanc u. Fischer Unité de cuisson avec élément chauffant radiant
DE8706277U1 (fr) * 1987-05-01 1987-06-25 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
DE3820691A1 (de) * 1988-06-18 1989-12-21 Ako Werke Gmbh & Co Strahlungsheizkoerper
GB2263770B (en) * 1992-01-23 1994-11-02 Ceramaspeed Ltd Device for controlling or limiting temperature in an electric cooking appliance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536981A1 (de) 1985-10-17 1987-04-23 Ako Werke Gmbh & Co Ueberhitzungsschutzschalter einer strahlungsbeheizung
DE9113992U1 (fr) 1991-11-12 1992-01-02 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372190B (en) * 2000-12-16 2005-02-09 Ceramaspeed Ltd Cooking appliance with radiant electric heater

Also Published As

Publication number Publication date
SI1187512T1 (en) 2005-04-30
ATE282287T1 (de) 2004-11-15
ES2231366T3 (es) 2005-05-16
US20020121510A1 (en) 2002-09-05
EP1187512A3 (fr) 2002-12-18
US6483084B2 (en) 2002-11-19
EP1187512B1 (fr) 2004-11-10

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