CH125670A - Electric hotplate heated with low voltage alternating current. - Google Patents

Electric hotplate heated with low voltage alternating current.

Info

Publication number
CH125670A
CH125670A CH125670DA CH125670A CH 125670 A CH125670 A CH 125670A CH 125670D A CH125670D A CH 125670DA CH 125670 A CH125670 A CH 125670A
Authority
CH
Switzerland
Prior art keywords
alternating current
low voltage
voltage alternating
electric hotplate
hotplate heated
Prior art date
Application number
Other languages
German (de)
Inventor
Maxim A G Fabrik Fuer Apparate
Original Assignee
Maxim A G Fabrik Fuer Thermo E
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 Maxim A G Fabrik Fuer Thermo E filed Critical Maxim A G Fabrik Fuer Thermo E
Publication of CH125670A publication Critical patent/CH125670A/en

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

Landscapes

  • Cookers (AREA)
  • Resistance Heating (AREA)

Description

  

  Mit niedergespanntem Wechselstrom beheizte elektrische Kochplatte.    Elektrisch beheizte Kochplatten bekann  ter Ausführung bestellen im allgemeinen aus  einer vom Strom durchflossenen Widerstands  spirale, die in eine ebene Metallplatte einge  bettet ist und den bestehenden Vorschriften  entsprechend gut isoliert und gegen Berüh  rung geschützt sein muss. Der Wärmeüber  gang auf     d:as    Kochgefäss     erfolgtliauptsächlich     durch Wärmeleitung an den Berührungsstel  len der Kochplatte mit dem aufgestellten       Koehgeschirr.    Dies erfordert besondere Koch  geschirre mit starken und ebenen Böden.  



  Den Gegenstand vorliegender Erfindung  bildet nun eine feuerfeste, nicht metallische,  isolierende,     beispielsweise    keramische Platte,  die auf ihrer Oberfläche offene Kanäle be  sitzt, in denen das von einem Wechselstrom,  dessen Spannung 36 Volt nicht übersteigt,  durchflossene Widerstandsmaterial eingelegt  ist. Das nach oben freie, auf Hellgluthitze       gehaltene    Widerstandsmaterial ist so einge  legt, dass es mindestens ein Millimeter vom  Gefässboden entfernt ist, das Gefäss selbst       ruht    auf der feuerfesten Platte. In diesem       h <  < lle        kann    jede; beliebige Kochgefäss Ver-         wendung    finden.

   Die Berührung des     Heiz-          widerstandes    hat bei dieser geringen Span  nung keinerlei nachteilige Folgen.  



  Die beiliegende Zeichnung zeigt ein Aus  führungsbeispiel dieser Platte. Darin bedeu  tet a die feuerfeste, nicht metallische Platte,  b die Kanäle und c den     einbelegten    Wider  standsdraht; d, e. bezeichnen die     Anschluss-          drähte.  



  Electric hotplate heated with low voltage alternating current. Electrically heated hotplates known ter design generally order from a current flowing through resistance spiral, which is embedded in a flat metal plate and must be well insulated and protected against touch according to the existing regulations. The heat transfer to the cooking vessel takes place mainly through heat conduction at the points of contact between the cooking plate and the cooker set up. This requires special cookware with strong and level floors.



  The subject of the present invention now forms a refractory, non-metallic, insulating, for example ceramic plate, which sits on its surface open channels be in which an alternating current, the voltage of which does not exceed 36 volts, is inserted resistance material. The resistance material, which is free from the top and kept at blazing heat, is placed in such a way that it is at least one millimeter away from the bottom of the vessel; the vessel itself rests on the refractory plate. In this h <<lle everyone can; any cooking vessel can be used.

   With this low voltage, touching the heating resistor has no disadvantageous consequences.



  The accompanying drawing shows an exemplary embodiment from this plate. Therein a means the refractory, non-metallic plate, b the channels and c the inserted resistance wire; d, e. denote the connecting wires.

Claims (1)

- PATENTANSPRUCH'. Elektrisch beheizte Kochplatte, dadurch gekennzeichnet, dass ein im Verhältnis zu sei ner Länge starker metallischer Leiter derart in offenen Kanälen einer nicht metallischen, isolierenden Platte eingelegt ist, dass er min destens ein Millimeter unter der Plattenober fläche liegt und seine Wärmeabgabe unge hindert; durch Strahlung erfolgt, wobei zur Beheizung des Leiters bis auf Hellgluthitze niedergespannter Wechselstrom verwendet wird, dessen Spannung 36 Volt nicht über steigt. - PATENT CLAIM '. Electrically heated hotplate, characterized in that a metal conductor, which is strong in relation to its length, is inserted into open channels of a non-metallic, insulating plate in such a way that it is at least one millimeter below the surface of the plate and prevents its heat dissipation; takes place by radiation, whereby to heat the conductor up to bright heat, alternating current is used, the voltage of which does not exceed 36 volts.
CH125670D 1927-03-12 1927-03-12 Electric hotplate heated with low voltage alternating current. CH125670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH125670T 1927-03-12

Publications (1)

Publication Number Publication Date
CH125670A true CH125670A (en) 1928-05-01

Family

ID=4384224

Family Applications (1)

Application Number Title Priority Date Filing Date
CH125670D CH125670A (en) 1927-03-12 1927-03-12 Electric hotplate heated with low voltage alternating current.

Country Status (1)

Country Link
CH (1) CH125670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376370A1 (en) * 1976-12-30 1978-07-28 Bosch Siemens Hausgeraete BAKING PLATE, IN PARTICULAR GLASS CERAMIC PLATE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376370A1 (en) * 1976-12-30 1978-07-28 Bosch Siemens Hausgeraete BAKING PLATE, IN PARTICULAR GLASS CERAMIC PLATE

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