DE591200C - Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point - Google Patents

Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point

Info

Publication number
DE591200C
DE591200C DEV28186D DEV0028186D DE591200C DE 591200 C DE591200 C DE 591200C DE V28186 D DEV28186 D DE V28186D DE V0028186 D DEV0028186 D DE V0028186D DE 591200 C DE591200 C DE 591200C
Authority
DE
Germany
Prior art keywords
thermal conductivity
melting point
hotplate
high thermal
low melting
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
DEV28186D
Other languages
German (de)
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner AG
Publication date
Priority to DEV28186D priority Critical patent/DE591200C/en
Application granted granted Critical
Publication of DE591200C publication Critical patent/DE591200C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/68Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/70Plates of cast metal

Claims (3)

Voigt & Haeffner Akt,-Ges. in Frankfurt a. M.*)Voigt & Haeffner act, -Ges. in Frankfurt a. M. *) Elektrisch beheizte Kochplatte mit rohrförmigen, in ein Metall von hohem Wärmeleitvermögen, aber niedrigem Schmelzpunkt eingegossenen HeizkörpernElectrically heated hotplate with tubular, in a metal of high thermal conductivity, but low melting point cast-in radiators Patentiert im Deutschen Reiche vom 8. Mai 1932 abPatented in the German Empire on May 8, 1932 Wendet man zur Herstellung von Kochplatten eine Anordnung an, bei der die Heizkörper in einer der bekannten Arten isoliert in Rohren liegen, die in die Kochplatten eingegossen werden 'sollen, so tritt die Schwierigkeit auf, daß. die am meisten gebrauchten Kochplatten aus Material von verhältnismäßig geringem 'Wärmeleitvermögen, z. B. Gußeisen, bestehen. Geht man aber zu Mate-If you use an arrangement for the production of hotplates, in which the radiators in one of the known ways are isolated in pipes that are poured into the hotplates should be ', the difficulty arises that. the most widely used hotplates made of material of proportionate size low 'thermal conductivity, e.g. B. cast iron exist. But if you go to Mate- ip rial über, bei dem das Wärmeleitvermögen verhältnismäßig hoch ist, so besitzt dieses, z. B. Aluminium, einen verhältnismäßig !niedrigen Schmelzpunkt, und man ist daher nicht sicher, ob die Kochplatte bei Herstellung aus diesem Material den auftretenden Temperaturen gewachsen ist. Um den Vorteil der Anwendung von Metallen oder Legierungen großen Wärmeleitvermögens ausnutzen zu können, wird nach der Erfindung die Kochplatte mit einer Hülle aus einem Material versehen, das ein schlechtes Wärmeleitvermögen hat, z. B. einer hochwertigen Eisemnickellegierung, während die rohrförmigen Heizkörper in Metallen von sehr hohem Wärmeleitvermögen, wie zt B. Aluminium, eingegossen liegen. Die Hülle kann, um sie möglichst dünn zu gestalten, mit Verstärkungsrippeini o. dgl. versehen werden, wie dies in den Beispielen dargestellt ist.ip rial over, in which the thermal conductivity is relatively high, this has, for. B. aluminum, has a relatively low melting point, and it is therefore not sure whether the hotplate can withstand the temperatures that occur when made from this material. In order to take advantage of the use of metals or alloys of high thermal conductivity, the hotplate is provided according to the invention with a cover made of a material that has poor thermal conductivity, e.g. B. a high-quality Eisemnickellegierung, while the tubular heating body in very high thermal conductivity of metals, such as aluminum t, are poured. In order to make it as thin as possible, the casing can be provided with reinforcing ribs or the like, as shown in the examples. Die Abb. 1 bis 3 zeigen drei verschiedene Formen für die Art und Ausbildung der Hülle. In ihnen bezeichnet α den rohrförmigen Heizkörper, b ist die Hülle, c die metallische Ausgußmasse. Durch Ansetzen von Rippen!^e oder / wird ein Verstärken, der Hülle erreicht.Figs. 1 to 3 show three different shapes for the type and design of the shell. In them, α denotes the tubular radiator, b is the shell, c the metallic pouring compound. By adding ribs! ^ E or / a reinforcement of the envelope is achieved. Paten ιλ ν Sprüche:Godparents ιλ ν Proverbs: ι. Elektrisch beheizte Kochplatte mit rohrförmigen, in ein Metall von hohem Wärmeleitvermögen, aber geringer mechanischer Wärmefestigkeit bzw. niedrigem Schmelzpunkt, wie z. B. Aluminium, eingegossenen Heizkörpern, dadurch gekennzeichnet, daß die Kochplatte von 'einer festen metallischen Hülle mit hohem Schmelzpunkt und schlechtem Wärmeleitvermögen 'umgeben ist;, .ι. Electrically heated hotplate with tubular, in a metal of high Thermal conductivity, but low mechanical heat resistance or low melting point, such as. B. aluminum, cast-in radiators, characterized in that the hotplate of 'one solid metallic shell with a high melting point and poor thermal conductivity 'is surrounded ;,. 2. Kochplatte nach Anspruch 1, dadurch gekennzeichnet, daß als Hülle eine hochwertige Eisennickellegierung" verwendet wird, die einen schlechten Wärmeleiter darstellt.2. Cooking plate according to claim 1, characterized in that a high-quality cover is used Iron nickel alloy "is used, which is a poor conductor of heat represents. 3. Kochplatte nach Anspruch 1 und 2, dadurch gekennzeichnet, daß, die verhältnismäßig dünn vorgesehene Hülle i;n an sich bekannter Weise durch Rippen mechanisch verstärkt ist.3. Cooking plate according to claim 1 and 2, characterized in that, the relatively thin sheath i; n is mechanically reinforced by ribs in a manner known per se. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Dr. Friedrich Jordan in Frankfurt a. M.Dr. Friedrich Jordan in Frankfurt a. M. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEV28186D Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point Expired DE591200C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV28186D DE591200C (en) Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV28186D DE591200C (en) Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point

Publications (1)

Publication Number Publication Date
DE591200C true DE591200C (en) 1934-01-18

Family

ID=7583954

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV28186D Expired DE591200C (en) Electrically heated hotplate with tubular heating elements cast in a metal of high thermal conductivity but low melting point

Country Status (1)

Country Link
DE (1) DE591200C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127007B (en) * 1958-03-28 1962-04-05 Karl Fischer Electrically heated mass quick cooking plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127007B (en) * 1958-03-28 1962-04-05 Karl Fischer Electrically heated mass quick cooking plate

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