DE2207343B1 - ELECTRIC HEATING PLATE - Google Patents
ELECTRIC HEATING PLATEInfo
- Publication number
- DE2207343B1 DE2207343B1 DE19722207343 DE2207343A DE2207343B1 DE 2207343 B1 DE2207343 B1 DE 2207343B1 DE 19722207343 DE19722207343 DE 19722207343 DE 2207343 A DE2207343 A DE 2207343A DE 2207343 B1 DE2207343 B1 DE 2207343B1
- Authority
- DE
- Germany
- Prior art keywords
- heating
- plate
- wire
- plane
- heating conductor
- 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.)
- Pending
Links
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
- H05B3/20—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
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
- H05B3/30—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material on or between metallic plates
-
- 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
- H05B3/688—Fabrication of the plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49082—Resistor making
- Y10T29/49083—Heater type
Landscapes
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Description
51 und Stege 61 müssen dabei hinsichtlich Form, Länge und Abstand so verlaufen, wie der fertige Heizleiter 4 endgültig aussehen soll. Durch eine vorschiebbare Platte 7 wird die Preßform 5 niedergedrückt und der Heizleiter 8 in Form einer Spiralwendel gegen die Stege 61 flach gepreßt.51 and webs 61 must run like the finished one in terms of shape, length and spacing Heat conductor 4 should finally look like. The mold 5 is pressed down by a plate 7 which can be pushed forward and the heating conductor 8 is pressed flat against the webs 61 in the form of a spiral helix.
Zur Herstellung wird von einer Heizwendel aus Widerstandsdraht ausgegangen, deren Drahtdurchmesser und Steigung so gewählt ist, daß beim Flachpressen die Windungen nicht umkippen. Eine einwandfreie Herstellung ergibt sich z. B., wenn Wendeldurchmesser sowie Steigung das 5fache des Drahtdurchmessers betragen. Eine derartige Heizwendel wird in die Nuten 51 der Preßform gelegt und durch den folgenden Preßvorgang in die aus F i g. 2 ersichtliche Form gebracht und anschließend auf eine Klebefolie, beispielsweise durch Hochfahren des Gegenstempels 6 gedruckt. Hierdurch wird der durch den Verlauf der Nuten 51 der Preßform 5 bestimmte Bahnverlauf des Heizleiters fixiert.Production is based on a heating coil made of resistance wire, the wire diameter of which and pitch is chosen so that the turns do not tip over when pressed flat. A flawless one Production results z. B. if the helix diameter and pitch are 5 times the wire diameter be. Such a heating coil is placed in the grooves 51 of the compression mold and through the following pressing process into the one shown in FIG. 2 brought to the visible form and then on an adhesive film, for example printed by raising the counter punch 6. As a result, the Course of the grooves 51 of the mold 5 fixed certain path of the heating conductor.
Vor dem Einbringen des Heizleiters in die Einbettmasse wird die beispielsweise aus Stahlblech bestehende Platte 1 gemäß F i g. 1 sandgestrahlt oder auf eine andere Weise aufgerauht und anschließend gegen Säure neutralisiert, beispielsweise durch Oxydieren oder Phosphatieren. Danach wird die Einbettmasse, die hauptsächlich aus Magnesiumoxyd und einem phosphorsaurem Binder, vorzugsweise aus zwei Teilen MgO und einem Teil SiO., und einer Lösung von einem Teil Al (H.,P04) und drei Teilen Wasser besteht, etwa 1,5 mm dick aufgetragen. Sobald der Abbindevorgang so weit fortgeschritten ist, daß die Masse zähklebrig wird, wird der an der Klebefolie haftende Heizleiter aufgelegt und bündig in die Schicht 2 eingedrückt. Beim Aufheizen auf 40 bis 80° C erstarrt dann die Masse vollständig und die Klebefolie wird abgezogen. Danach wird gegebenenfalls eine Deckmasse aufgetragen und bei 600° C vollständig ausgehärtet.Before the heating conductor is introduced into the investment, the plate 1, which is made of sheet steel, for example, is inserted according to FIG. 1 sandblasted or otherwise roughened and then neutralized against acid, for example by oxidizing or phosphating. Then the investment, which consists mainly of magnesium oxide and a phosphoric acid binder, preferably two parts of MgO and one part of SiO., And a solution of one part of Al (H., P0 4 ) and three parts of water, about 1.5 mm applied thickly. As soon as the setting process has progressed so far that the compound becomes sticky, the heating conductor adhering to the adhesive film is placed on top and pressed flush into layer 2. When heated to 40 to 80 ° C, the mass then solidifies completely and the adhesive film is peeled off. Then, if necessary, a topping compound is applied and fully cured at 600 ° C.
Versuche haben gezeigt, daß die Haftung von 1 bis zu 4 mm dicken Schichten von Einbettmasse auf Glaskeramik. Stahlblech. Grauguß, rostfreiem Stahl oder Email auch im Temperaturwechselversuch gegeben ist.Tests have shown that the adhesion of 1 to 4 mm thick layers of investment material Glass ceramic. Sheet steel. Gray cast iron, stainless steel or enamel also given in temperature change tests is.
Bei Verwendung einer Heizplatte aus elektrisch leitendem Material besteht noch zusätzlich die Aufgabe, einen Kontakt zwischen der Heizplatte und dem Heizleiter mit Sicherheit zu verhindern. Hierzu kann man beispielsweise die Schicht aus Einbettmasse so dick wählen, daß zwischen dem Heizleiter, der flächenbündig in diese Masse eingedrückt ist, und der Heizplatte der erforderliche Mindestabstand gewährleistet ist. Eine andere Möglichkeit bestehtWhen using a heating plate made of electrically conductive material, there is also the additional task of to prevent contact between the heating plate and the heating conductor with certainty. For this for example, the layer of investment material can be chosen so thick that between the heating conductor, which is pressed flush into this mass, and the heating plate the required minimum distance is guaranteed. There is another possibility
so darin, auf eine nur wenige Zehntel eines Millimeters dicke Hilfsplatte aus elektrisch isolierendem, hitzebeständigem Material, z. B. aus Glimmer, die Einbettmasse nur so dünn aufzutragen, daß die Dicke dieser Schicht gerade dem Durchmesser des Drahtes des Heizleiters entspricht. Nach dem Eindrücken des Heizleiters in eine derart dünne Schicht, liegt dieser praktisch unmittelbar auf der Hilfsplatte auf.so in it, to just a few tenths of a millimeter thick auxiliary plate made of electrically insulating, heat-resistant material, e.g. B. made of mica, the investment only to be applied so thin that the thickness of this layer is just the diameter of the wire of the Corresponds to the heating conductor. After the heating conductor has been pressed into such a thin layer, it is in place practically directly on the auxiliary plate.
Ein besonderer Vorteil der erfindungsgemäßen Kochplatte besteht auch in der geringen Wärmekapazität, wodurch sich eine sehr kleine Aufheizzeit und verbesserte Regeleigenschaften ergeben. Die Einsparungen an Material für die Platte ist bei einem Vergleich mit den herkömmlichen Gußplatten mit innen angeordneten Rippen hervorstehend.A particular advantage of the hotplate according to the invention is also the low heat capacity, which results in a very short heating-up time and improved control properties. The savings the material for the plate is in a comparison with the conventional cast plates with the inside arranged ribs protruding.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
copycopy
Claims (5)
z. B. Kochplatte oder Sohle eines Bügeleisens, mit Die Erfindung wird an Hand der Figuren erläutert,The invention relates to an electric heating plate that bends out toward the plane extending towards the heating plate.
z. B. hotplate or sole of an iron, with The invention is explained using the figures,
in einer Ebene liegen, die senkrecht auf der Ebene Auf der Unterseite einer Kochplatte 1 aus Stahl-Head designed as a wire helix, the turns 55 for producing the heating conductor.
lie in a plane that is perpendicular to the plane on the underside of a hotplate 1 made of steel
masse nur teilweise lösen. Zur Herstellung des Heizleiters 4 mit der austhe heating plate is standing. This structure results in sheet metal with downwardly drawn edges 11 is an unsatisfactory heat transfer, since the 1 to 3 mm thin layer 2 of embedding material differentiates between individual areas of the heating wire into which the heating conductor 4 is pressed so that the distance have from the hot plate; which he is currently completely immersing in this layer. To the problems resulting from war protection of the heating conductor, another meleit channel and a relatively thick embedding layer 3 of embedding material is applied over it,
loosen mass only partially. To produce the heating conductor 4 with the from
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722207343 DE2207343B1 (en) | 1972-02-17 | 1972-02-17 | ELECTRIC HEATING PLATE |
IT20314/73A IT979048B (en) | 1972-02-17 | 1973-02-13 | ELECTRIC HOT PLATE |
FR7305235A FR2172247A1 (en) | 1972-02-17 | 1973-02-14 | |
US00332622A US3798759A (en) | 1972-02-17 | 1973-02-15 | Method of making electric heating unit |
JP48019167A JPS4890034A (en) | 1972-02-17 | 1973-02-16 | |
NL7302275A NL7302275A (en) | 1972-02-17 | 1973-02-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722207343 DE2207343B1 (en) | 1972-02-17 | 1972-02-17 | ELECTRIC HEATING PLATE |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2207343A1 DE2207343A1 (en) | 1973-08-09 |
DE2207343B1 true DE2207343B1 (en) | 1973-08-09 |
Family
ID=5836157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722207343 Pending DE2207343B1 (en) | 1972-02-17 | 1972-02-17 | ELECTRIC HEATING PLATE |
Country Status (6)
Country | Link |
---|---|
US (1) | US3798759A (en) |
JP (1) | JPS4890034A (en) |
DE (1) | DE2207343B1 (en) |
FR (1) | FR2172247A1 (en) |
IT (1) | IT979048B (en) |
NL (1) | NL7302275A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19711541A1 (en) * | 1997-03-20 | 1998-09-24 | Ako Werke Gmbh & Co | Electric hotplate |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA975157A (en) * | 1972-03-17 | 1975-09-30 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Gun alignment and control system |
DE2551137C2 (en) * | 1975-11-14 | 1986-04-24 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Electric radiant heater for glass ceramic hotplates |
GB2044056B (en) * | 1979-02-07 | 1983-01-26 | Micropore International Ltd | Method of shaping coils |
JPS5734991U (en) * | 1980-08-07 | 1982-02-24 | ||
JPH028399Y2 (en) * | 1980-08-12 | 1990-02-28 | ||
US4665637A (en) * | 1985-07-26 | 1987-05-19 | Braun Aktiengesellschaft | Sole plate coating for a fabric pressing device |
US4702933A (en) * | 1985-07-26 | 1987-10-27 | Braun Aktiengesellschaft | Fabric pressing device |
GB8818104D0 (en) * | 1988-07-29 | 1988-09-01 | Emaco Ltd | Improvements in & relating to cooking appliances |
IL117181A0 (en) * | 1996-02-19 | 1996-06-18 | Eco Tan Ltd | Mica covered resistive electric heater elements for air heating |
WO2000013466A1 (en) * | 1998-08-31 | 2000-03-09 | Daikin Industries, Ltd. | Heating device |
US8530795B2 (en) | 2009-06-26 | 2013-09-10 | Evo, Inc. | Electric cooking apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2249476A (en) * | 1938-09-26 | 1941-07-15 | John A Knight | Electric hot plate |
US3680207A (en) * | 1971-01-28 | 1972-08-01 | Corning Glass Works | Method of making electrical heating units |
-
1972
- 1972-02-17 DE DE19722207343 patent/DE2207343B1/en active Pending
-
1973
- 1973-02-13 IT IT20314/73A patent/IT979048B/en active
- 1973-02-14 FR FR7305235A patent/FR2172247A1/fr not_active Withdrawn
- 1973-02-15 US US00332622A patent/US3798759A/en not_active Expired - Lifetime
- 1973-02-16 JP JP48019167A patent/JPS4890034A/ja active Pending
- 1973-02-19 NL NL7302275A patent/NL7302275A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19711541A1 (en) * | 1997-03-20 | 1998-09-24 | Ako Werke Gmbh & Co | Electric hotplate |
Also Published As
Publication number | Publication date |
---|---|
FR2172247A1 (en) | 1973-09-28 |
DE2207343A1 (en) | 1973-08-09 |
JPS4890034A (en) | 1973-11-24 |
NL7302275A (en) | 1973-08-21 |
IT979048B (en) | 1974-09-30 |
US3798759A (en) | 1974-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2207343B1 (en) | ELECTRIC HEATING PLATE | |
EP0071048A1 (en) | Radiant electric heating element and method of manufacturing the same | |
EP0031514B1 (en) | Electric heating radiator, and process and apparatus for its manufacture | |
EP0210575B1 (en) | Electrical radiant heating element for heating hot plates, and process and device for its manufacture | |
EP1395085B1 (en) | Electrical heating device for cylindrical bodies | |
DE3233181C2 (en) | Vacuum-formed, electric, radiant resistance heating device for industrial furnaces and processes for their production, made from ceramic fibers. | |
DE102011007375A1 (en) | The hair styling appliance heating plate | |
DE2931725C2 (en) | Process for the production of self-supporting armature coils for direct current machines | |
DE1258520B (en) | Process for the production of a heater for a cathode consisting of a flat coil or a cathode consisting of a flat coil | |
DE102019220589A1 (en) | Heat generating element and process for its manufacture | |
DE2817288C2 (en) | Bars for electrical machines | |
EP0355388A1 (en) | Radiant heater and method and device for producing same | |
DE1690557C3 (en) | Electric mass cooking plate | |
EP0098391B1 (en) | Electric cooking plate | |
DE2504673C3 (en) | Rapid heating cathode for an electron tube | |
DE1962568A1 (en) | Electrically heated hob | |
DE20108963U1 (en) | Electric flat radiator | |
EP0105968A1 (en) | Electric heating device for ranges or cooking plates | |
DE9421796U1 (en) | Electric radiant heater | |
DE2203642A1 (en) | Electric heating devices and methods for their manufacture | |
DE2404362B1 (en) | Radiator for an indirectly heated cathode | |
DE2509101C3 (en) | Electric tubular heater with a flat oval cross-section | |
DE897303C (en) | Electric hotplate made of drawable material, in particular steel | |
EP2056649A2 (en) | Holder for an electric heater and electric heating device and method for production | |
DE650815C (en) | Electric tubular heater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Publication of the examined application without previous publication of unexamined application |