DE388171C - Electric heater, especially for electric cooking and ironing plates - Google Patents

Electric heater, especially for electric cooking and ironing plates

Info

Publication number
DE388171C
DE388171C DEB98110D DEB0098110D DE388171C DE 388171 C DE388171 C DE 388171C DE B98110 D DEB98110 D DE B98110D DE B0098110 D DEB0098110 D DE B0098110D DE 388171 C DE388171 C DE 388171C
Authority
DE
Germany
Prior art keywords
electric
ironing plates
cooking
heat
grooves
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
DEB98110D
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.)
Bruenner Geb GmbH
Original Assignee
Bruenner Geb GmbH
Publication date
Priority to DEB98110D priority Critical patent/DE388171C/en
Application granted granted Critical
Publication of DE388171C publication Critical patent/DE388171C/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
    • H05B3/20—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

Landscapes

  • Surface Heating Bodies (AREA)

Description

Um zu verhüten, daß bei Heizkörpern für elektrische Koch- und Bügelapparate ein großer Teil der von ihnen erzeugten Wärme an der der Nutzseite abgewendeten Fläche als S Strahlungswärme verlorengeht, wird die Bettungsmasse der Heizdrähte derart gestaltet, daß die Flächen, welche die Wärme an die Nutzplatte abgeben, größer sind als jene, welche die Wärme auf die effektlosen Umfassungskörper überleiten; zu diesem Zwecke wird gemäß der Zeichnung, welche den Querschnitt eines Heizkörpers für Bügeleisen darstellt, die nach oben gerichtete Grenzfläche ν der Masse m, in welche die elektrischen Heizdrähte α gebettet sind, vollkommen eben gemacht, die nach unten gerichtete Grenzfläche aber, weiche gegen die Nutzplatte« gekehrt ist, mit nach unten offenen, keilförmigen Rillen O oder hohlkegelförmigen Ausnehmun-In order to prevent that a large part of the heat generated by radiators for electric cooking and ironing appliances is lost as S radiant heat on the surface facing away from the useful side, the bedding mass of the heating wires is designed in such a way that the surfaces which the heat to the useful plate give off, are larger than those which transfer the heat to the ineffective enclosing body; For this purpose, according to the drawing, which shows the cross-section of a heating element for iron, the upwardly directed boundary surface ν of the mass m, in which the electrical heating wires α are embedded, is made completely flat, but the downwardly directed boundary surface softens against the Utility plate "is inverted, with downwardly open, wedge-shaped grooves O or hollow cone-shaped recesses

ao gen O' versehen. Die Bettungsmasse m steht mit der Nutzplatte« nur an ihren ebenen Flächenelementen in direkt leitender Verbindung, während der Wärmeübergang von den Flächen der Rillen O oder Hohlkegel O' aufao gen O ' provided. The bedding mass m is only in direct conductive contact with the useful plate at its flat surface elements, while the heat transfer from the surfaces of the grooves O or hollow cones O '

as die Nutzplatte« auf dem Wege der Strahlung stattfindetas the usable plate «takes place on the path of radiation

Damit die von den Rillen oder Kegelflächen O, O' ausgehenden Wärmestrahlen aber einen möglichst günstigen Heizeffekt ergeben, wird der Erfindung gemäß der iScheitelwinkel S der Rillen bzw. der Kegelflächen mindestens 900 groß gewählt, so daß die von einer Rillenfläche O senkrecht abgehenden Wärmestrahlen auf die Nutzplatten« gelangen und nicht auf die gegenüberliegenden Rillenflächen O auftreffen.But that of the grooves or conical surfaces O, O 'outgoing heat rays result in a favorable heating effect of the invention is at least 90 0 size selected according to the iScheitelwinkel S of the grooves or of the conical surfaces, so that the vertically outgoing from a groove surface O heat rays the usable panels «arrive and do not hit the opposite groove surfaces O.

Claims (1)

Patent-Anspruch:Patent claim: Elektrischer Heizkörper, insbesondere für elektrische Koch- und Bügelplatten, bei welchen in der Bettungsmasse zwischen den Heizdrähten liegende Rillen oder kegelförmige Ausnehmungen angeordnet sind, von deren Grenzflächen die Wärme durch Strahlung auf die Nutzplatte übergeht, dadurch gekennzeichnet, daß die Scheitelwinkel der in der Bettungsmasse angeordneten keilförmigen Rillen· oder kegelförmigen Ausnehmungen gleich oder größer als 900 sind.Electric heating element, in particular for electric cooking and ironing plates, in which grooves or conical recesses are arranged in the bedding compound between the heating wires, from the boundary surfaces of which the heat is transferred to the usable plate by radiation, characterized in that the apex angles of the bedding compound wedge-shaped grooves or conical recesses are equal to or greater than 90 ° .
DEB98110D Electric heater, especially for electric cooking and ironing plates Expired DE388171C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB98110D DE388171C (en) Electric heater, especially for electric cooking and ironing plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB98110D DE388171C (en) Electric heater, especially for electric cooking and ironing plates

Publications (1)

Publication Number Publication Date
DE388171C true DE388171C (en) 1924-01-18

Family

ID=6989329

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB98110D Expired DE388171C (en) Electric heater, especially for electric cooking and ironing plates

Country Status (1)

Country Link
DE (1) DE388171C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110777B (en) * 1960-04-29 1961-07-13 Keramische Ind Bedarfs Kom Ges Ceramic muffle with heating conductors laid in the inner wall of the muffle and process for their production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110777B (en) * 1960-04-29 1961-07-13 Keramische Ind Bedarfs Kom Ges Ceramic muffle with heating conductors laid in the inner wall of the muffle and process for their production

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