EP1089594B1 - Heizplatte - Google Patents
Heizplatte Download PDFInfo
- Publication number
- EP1089594B1 EP1089594B1 EP00120892A EP00120892A EP1089594B1 EP 1089594 B1 EP1089594 B1 EP 1089594B1 EP 00120892 A EP00120892 A EP 00120892A EP 00120892 A EP00120892 A EP 00120892A EP 1089594 B1 EP1089594 B1 EP 1089594B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- heating plate
- plate according
- mixture
- steatite
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000004927 clay Substances 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
Definitions
- the invention relates to a heating plate with a plate-shaped Heating block in which a heating coil embedded is.
- Such heating plates are used for example in electric heaters used.
- the heating plates are used when energized the heating coil to absorb heat and the To give absorbed heat to the environment, in particular then, when the current application is switched off.
- a heating plate with a plate-shaped heating block of Klei, talc and lignite is in Document US-4,634,841.
- the invention is therefore based on the object, a hot plate to create, which with regard to the heat absorption, Heat storage and heat dissipation as good as possible having.
- This object is with a hot plate of the beginning mentioned type according to the invention solved in that the heating block from a chamotte and soapstone comprehensive mixture is burned.
- the admixture of soapstone before burning causes the heat is kept longer in the heating block than in one Firebrick to which no soapstone was added. By this admixture of soapstone can heat up to about 30% longer than without admixture.
- the soapstone is the mixture as Granules added. This allows the heater on the one hand produce in a cost effective manner and on the other hand can be the thermal properties of the heating block optimize.
- the Grain size of the soapstone in the granules substantially less than about 3 mm and in particular less than 2.5 mm.
- the heating coil several Turns.
- the turns are conveniently located essentially in one plane. This prevents, on the one hand, especially with thin plates that the mechanical Stability is compromised when part of a heating coil too close to the surface; on the other hand This results in a uniform heat application of a Reach heating block.
- contact pins for current application of Heating coil provided.
- By such externally accessible Contact pins can be easily heated up of the heating block by means of power supply accomplish.
- the heating coil is made of tungsten. This material especially keeps up the high temperatures the burning of the heating block stood.
- An embodiment of a heating plate according to the invention which is designated in Fig. 1 as a whole by 10, comprises a heating block 12 which is plate-shaped with an upper block level 14 and a lower block level 16.
- the thickness of the heating block 12 between the lower block level 16 and the upper block level 14 is substantially above the whole heating block 12 constant.
- the thickness is smaller and especially much smaller than the width and the depth of the heating block 12.
- the thickness is about 2 cm with a width of the heating block of about 30 cm and a depth of about 15 cm.
- the heating block 12 at its corners longitudinally opposite rectangular Recesses 18 and 20 or 22 and 24 (in FIG. 1 is the recess 24 is not completely visible), wherein the Recesses 18 and 22 and the recesses 20 and 24 across opposite to the longitudinal direction. Between across Recesses is in each case a web element 26th (between the recesses 18 and 22) and a web element 28th (between the recesses 20 and 24) formed.
- the web element 26 has between its the recess 18 facing Side surface 30 and its the recess 22 associated Side surface 32 on a transverse taper 34.
- the web element 28 has a corresponding transverse bevel 36, the adapted to the transverse bevel 34 that a number of heating plates 10 adjacent to each other by means of the transverse chamfers 34 and 36 on the web elements 26 and 28 each other can be positioned overlapping, with an upper level such a series through the upper block level 14 and a given lower level by the lower block level 16; on This way can be without space (by the otherwise Heat losses can occur) the heating plates 10 in one Arrange row and also stack in height.
- a heating coil 42 for example made of tungsten is made.
- the heating coil comprises a plurality of Windings 44 such that a large portion of the heating block 12 is penetrated by the heating coil 42, so that the heating block 12 as large as possible heat from the heating coil 42nd can record and thus can deliver over a large area again (that can act as a heating plate).
- the heating coil 42 is in the material of the heating block 12th embedded. This is made by burning a mixture of a matrix and soapstone burned.
- the basic mass is it itself a mixture of about 50 to 70% chamotte (Kaolin) and in particular about 60% chamotte and the remainder, which is 100% missing, Bindeton.
- the soapstone content in the mixture is about 10% to 30% and in particular about 15% to 25%.
- the soapstone is doing as granules added with a grain size ranging between 0 to 3 mm and in particular in the range between 0 to 2.5 mm. Especially the mean grain size is in the range between 0 mm to 2.5 mm.
- This mixture is mixed as homogeneously as possible, in a mold given, the heating coil 42 with the contact pins 38 and 40th inserted and then at high temperatures, for example at burned about 1400 ° Celsius to 1450 ° Celsius.
- the heating plate according to the invention works as follows:
- the heating coil 42 With Electricity applied. By ohmic heat, it heats up. This heat is released to the material of the heating block and stored in it and from there to the surroundings issued. By adding soapstone in the mixture keeps the heat in the heating block longer than if, for example the heating coil embedded in a heating block is that alone from the matrix without admixture of Soapstone is burned. By the admixture of soapstone The heat can be up to approx. 30% longer before burning being held .
- Hot plates according to the invention can be, for example, in Use electric heaters by heating rows of heating plates 10 be formed and these are stacked. It can then the respective heating blocks 12, if the respective heating coils 42 are energized, absorb heat, for example, when through the power station in partial storage heaters Power is released to charge the Heater; The stored heat is then passed through the heating blocks 12 delivered and in particular delivered in times, represent the blocking periods with respect to the current charge. By mixing soapstone into the material the heating blocks 12 keeps the heat longer, so that a More uniform heat dissipation is achievable.
- heating plates according to the invention for example as heat retaining plates or as an iron or for to use other applications.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Baking, Grill, Roasting (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Detergent Compositions (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Resistance Heating (AREA)
- Cookers (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Optical Integrated Circuits (AREA)
Description
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen Heizplatte.
Claims (14)
- Heizplatte mit einem plattenförmigen Heizblock (12), in welchem eine Heizschlange (42) eingebettet ist, dadurch gekennzeichnet, daß der Heizblock (12) aus einem Schamotte und Speckstein umfassenden Gemisch gebrannt ist.
- Heizplatte nach Anspruch 1, dadurch gekennzeichnet, daß eine Grundmasse des Schamotte und Speckstein umfassenden Gemisches aus ca. 50 % bis 70 % Schamotte und entsprechend ca. 50 % bis 30 % Bindeton zusammengesetzt ist.
- Heizplatte nach Anspruch 2, dadurch gekennzeichnet, daß die Grundmasse des Gemisches aus ca. 60 % Schamotte und entsprechend ca. 40 % Bindeton zusammengesetzt ist.
- Heizplatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Gewichtsanteil des Specksteins im Gemisch bei ca. 10 % bis 30 % liegt.
- Heizplatte nach Anspruch 4, dadurch gekennzeichnet, daß der Gewichtsanteil des Specksteins im Gemisch bei ca. 15 % bis 25 % liegt.
- Heizplatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Speckstein dem Gemisch als Granulat beigemischt ist.
- Heizplatte nach Anspruch 6, dadurch gekennzeichnet, daß die Körnergröße des Specksteins im Granulat im wesentlichen kleiner als ca. 3 mm ist.
- Heizplatte nach Anspruch 7, dadurch gekennzeichnet, daß die Körnergröße im wesentlichen kleiner als ca. 2,5 mm ist.
- Heizplatte nach Anspruch 6, dadurch gekennzeichnet, daß eine mittlere Körnergröße des Speckstein im Granulat kleiner als ca. 3 mm ist.
- Heizplatte nach Anspruch 9, dadurch gekennzeichnet, daß die mittlere Körnergröße kleiner als ca. 2,5 mm ist.
- Heizplatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Heizschlange (52) mehrere Windungen (44) umfaßt.
- Heizplatte nach Anspruch 11, dadurch gekennzeichnet, daß die Windungen (44) im wesentlichen in einer Ebene liegen.
- Heizplatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß Kontaktstifte (38, 40) zur Strombeaufschlagung der Heizschlange (42) vorgesehen sind.
- Heizplatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Heizschlange (42) aus Wolfram gefertigt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29917101U DE29917101U1 (de) | 1999-09-29 | 1999-09-29 | Heizplatte |
| DE29917101U | 1999-09-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1089594A2 EP1089594A2 (de) | 2001-04-04 |
| EP1089594A3 EP1089594A3 (de) | 2001-06-13 |
| EP1089594B1 true EP1089594B1 (de) | 2005-08-17 |
Family
ID=8079571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00120892A Expired - Lifetime EP1089594B1 (de) | 1999-09-29 | 2000-09-26 | Heizplatte |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1089594B1 (de) |
| AT (1) | ATE302540T1 (de) |
| DE (2) | DE29917101U1 (de) |
| DK (1) | DK1089594T3 (de) |
| ES (1) | ES2245627T3 (de) |
| PT (1) | PT1089594E (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012003563U1 (de) | 2012-04-04 | 2012-07-17 | Lucht Lhz Elektroheizung Gmbh & Co. Kg | Wärmeträger |
| WO2013149602A1 (de) | 2012-04-04 | 2013-10-10 | Lucht Lhz Elektroheizung Gmbh & Co. Kg | Wärmeträger |
| DE202023104328U1 (de) | 2023-07-31 | 2024-11-05 | Thermotec Ag | Elektrisch beheizbare Flächenspeicherheizung und Wärmespeicherkern für die Flächenspeicherheizung |
| DE102023120320A1 (de) | 2023-07-31 | 2025-02-06 | Thermotec Ag | Elektrisch beheizbare Flächenspeicherheizung und Wärmespeicherkern für die Flächenspeicherheizung |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20119328U1 (de) * | 2001-11-14 | 2002-02-21 | Lucht LHZ GmbH & Co. KG, 86316 Friedberg | Beheizbares Flächenelement |
| DE10262195B4 (de) * | 2002-04-18 | 2007-11-15 | Evo Elektroheizungen Gmbh | Elektro-Heizkörper |
| DE102006053525B3 (de) * | 2006-11-07 | 2008-05-08 | Evo Elektroheizungen Gmbh | Elektroheizkörper und Verfahren zur Herstellung eines Elektroheizkörpers |
| CN101090590B (zh) * | 2007-06-18 | 2010-05-26 | 程巍 | 一种电热板 |
| DE202011050181U1 (de) | 2011-05-18 | 2012-08-20 | Evo Elektroheizungen Gmbh | Heizmodul und Heizkörpervorrichtung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1581127A (en) * | 1975-09-27 | 1980-12-10 | Vulcan Refractories Ltd | Electrical heating devices |
| EP0112922B1 (de) * | 1982-06-24 | 1988-09-21 | Matsushita Electric Industrial Co., Ltd. | Paneelerhitzer |
| US4634841A (en) * | 1985-06-18 | 1987-01-06 | Laughrey James C | Cover for cooking stove heating element |
| EP0417375A1 (de) * | 1989-09-12 | 1991-03-20 | Krelus Ag | Widerstandsheizelemente mit keramischer Schicht |
-
1999
- 1999-09-29 DE DE29917101U patent/DE29917101U1/de not_active Expired - Lifetime
-
2000
- 2000-09-26 AT AT00120892T patent/ATE302540T1/de active
- 2000-09-26 ES ES00120892T patent/ES2245627T3/es not_active Expired - Lifetime
- 2000-09-26 DE DE50010958T patent/DE50010958D1/de not_active Expired - Lifetime
- 2000-09-26 PT PT00120892T patent/PT1089594E/pt unknown
- 2000-09-26 EP EP00120892A patent/EP1089594B1/de not_active Expired - Lifetime
- 2000-09-26 DK DK00120892T patent/DK1089594T3/da active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012003563U1 (de) | 2012-04-04 | 2012-07-17 | Lucht Lhz Elektroheizung Gmbh & Co. Kg | Wärmeträger |
| WO2013149602A1 (de) | 2012-04-04 | 2013-10-10 | Lucht Lhz Elektroheizung Gmbh & Co. Kg | Wärmeträger |
| EP2834317B1 (de) * | 2012-04-04 | 2020-05-27 | Lucht LHZ Elektroheizung GmbH&Co. Kg | Wärmeträger |
| DE202023104328U1 (de) | 2023-07-31 | 2024-11-05 | Thermotec Ag | Elektrisch beheizbare Flächenspeicherheizung und Wärmespeicherkern für die Flächenspeicherheizung |
| DE102023120320A1 (de) | 2023-07-31 | 2025-02-06 | Thermotec Ag | Elektrisch beheizbare Flächenspeicherheizung und Wärmespeicherkern für die Flächenspeicherheizung |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1089594A2 (de) | 2001-04-04 |
| ATE302540T1 (de) | 2005-09-15 |
| DK1089594T3 (da) | 2005-11-14 |
| ES2245627T3 (es) | 2006-01-16 |
| DE50010958D1 (de) | 2005-09-22 |
| PT1089594E (pt) | 2005-11-30 |
| DE29917101U1 (de) | 2000-01-13 |
| EP1089594A3 (de) | 2001-06-13 |
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