DE819878C - Electric heating and cooking apparatus, in particular hotplate - Google Patents

Electric heating and cooking apparatus, in particular hotplate

Info

Publication number
DE819878C
DE819878C DEP9771A DEP0009771A DE819878C DE 819878 C DE819878 C DE 819878C DE P9771 A DEP9771 A DE P9771A DE P0009771 A DEP0009771 A DE P0009771A DE 819878 C DE819878 C DE 819878C
Authority
DE
Germany
Prior art keywords
electric heating
housing
cooking apparatus
thermal resistance
hotplate
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
Application number
DEP9771A
Other languages
German (de)
Inventor
Wilhelm Dr-Ing Buessem
Hans Dr-Ing Golla
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DEP9771A priority Critical patent/DE819878C/en
Application granted granted Critical
Publication of DE819878C publication Critical patent/DE819878C/en
Expired legal-status Critical Current

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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/688—Fabrication of the plates

Landscapes

  • Baking, Grill, Roasting (AREA)

Description

Bei elektrischen Heiz- und Kochgeräten, insbesondere Glühkochplatten, ergibt sich oft ein wesentlicher Nachteil dadurch, daß eine hohe Wärmeabstrahlung nach unten erfolgt, wodurch die Unterlagen, auf denen die Heizgeräte stehen, unzulässig hoch erwärmt bzw. beschädigt werden. Um dies zu vermeiden, mußten nachteilige Bauformen verwendet werden, z. B. wurde eine Glühkochplatte mit entsprechend hohen Füßen ausgebildet. Dies ergab Schwierigkeiten, insbesondere bei Glühkochplatten mit Gehäusen aus keramischen Werkstoffen.In the case of electrical heating and cooking devices, especially hot plates, there is often a significant disadvantage that a high level of heat radiation downwards, which means that the documents on which the heaters are placed are not permitted be heated up or damaged. In order to avoid this, disadvantageous designs had to be used be used, e.g. B. a hot plate with correspondingly high feet was formed. This gave rise to difficulties, especially in the case of hot plates with housings made of ceramic Materials.

Gemäß der Erfindung werden diese Nachteile in einfachster Weise dadurch beseitigt, daß innerhalb des Gehäuses des elektrischen Heizgerätes Wärmeisolations- und Wärmeleitschichten derart angeordnet sind, daß in vertikaler Richtung ein kleiner Wärmewiderstand vorhanden ist. Hierdurch wird die Wärme schnell nach den Seiten abgeführt und jede unzulässig hohe Wärmeabstrahlung nach unten vermieden. Das Gehäuse kann mit Kieselgur, Schamotte, Glaswolle o. dgl. ausgefüllt und mit horizontal liegenden Metallblechen, z. B. aus Kupfer, Aluminium oder Eisen, versehen werden, die an den Seiten mit dem Gehäuse in gutem Kontakt stehen.According to the invention, these disadvantages are thereby eliminated in the simplest possible manner eliminates that inside the housing of the electric heater heat insulation and thermally conductive layers are arranged such that a smaller one in the vertical direction Thermal resistance is present. This causes the heat to move quickly to the sides dissipated and any impermissibly high downward radiation of heat avoided. The case can be filled with kieselguhr, chamotte, glass wool or the like and with horizontal layers Metal sheets, e.g. B. made of copper, aluminum or iron, which are attached to the The sides are in good contact with the housing.

In der Figur ist die Erfindung an dem Beispiel einer Glühkochplatte schematisch veranschaulicht. Das Gehäuse i besteht aus einem keramischen Werkstoff und trägt die Kochplatte 2. Innerhalb des Gehäuses sind horizontal liegende Kupferbleche 3 vorgesehen, die in ihren Enden 4 umgebogen sind und dadurch einen guten Kontakt mit der Gehäusewand geben. Nach unten ist das Gehäuse ebenfalls durch eine metallische Platte 5 abgeschlossen, welche auch die `'Wärmeableitung in horizontaler Richtung begünstigt. Das Gehäuse selbst ist mit Kieselgur 6 ausgefüllt, wodurch der große Wärmewiderstand in vertikaler Richtung nach unten erzielt wird. Der elektrische Anschluß der Glühkochplatte ist mit 7 bezeichnet.In the figure, the invention is based on the example of a hotplate illustrated schematically. The housing i consists of a ceramic material and carries the hotplate 2. Inside the housing are horizontally lying copper sheets 3 provided, which are bent over at their ends 4 and thereby good contact with the housing wall. At the bottom the housing is also covered by a metallic one Plate 5 completed, which also the '' heat dissipation in the horizontal direction favored. The housing itself is filled with diatomaceous earth 6, which makes the large Thermal resistance is achieved in the vertical direction downwards. The electric one The connection of the hotplate is designated by 7.

Claims (2)

PATENTANSPRÜCHE. i. Elektrische Heiz- und Kochgeräte, insbesondere Glühkochplatte mit einem Gehäuse aus keramischen Werkstoffen, dadurch gekennzeichnet, daß innerhalb des Gehäuses unter der Glühkochplatte Wärmeisolations- und Wärmeleitschichten derart angeordnet sind, daß in vertikaler Richtung ein großer Wärmewiderstand und in horizontaler Richtung ein kleiner Wärmewiderstand vorhanden ist. PATENT CLAIMS. i. Electric heating and cooking apparatus, in particular Hot plate with a housing made of ceramic materials, characterized in that that inside the housing under the hot plate heat insulation and heat conducting layers are arranged such that a large thermal resistance and in the vertical direction there is a small thermal resistance in the horizontal direction. 2. Elektrische Heizgeräte nach Anspruch i, dadurch gekennzeichnet, daß das Gehäuse mit Kieselgur, Schamotte, Glaswolle o. dgl. ausgefüllt ist und horizontal liegende Metallbleche, z. B. aus Kupfer, Aluminium, Eisen o. dgl., vorgesehen sind.2. Electric Heating device according to claim i, characterized in that the housing is coated with kieselguhr, Fireclay, glass wool or the like is filled and horizontally lying metal sheets, z. B. made of copper, aluminum, iron o. The like. Are provided.
DEP9771A 1948-10-02 1948-10-02 Electric heating and cooking apparatus, in particular hotplate Expired DE819878C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP9771A DE819878C (en) 1948-10-02 1948-10-02 Electric heating and cooking apparatus, in particular hotplate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP9771A DE819878C (en) 1948-10-02 1948-10-02 Electric heating and cooking apparatus, in particular hotplate

Publications (1)

Publication Number Publication Date
DE819878C true DE819878C (en) 1951-11-05

Family

ID=7362458

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP9771A Expired DE819878C (en) 1948-10-02 1948-10-02 Electric heating and cooking apparatus, in particular hotplate

Country Status (1)

Country Link
DE (1) DE819878C (en)

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