The invention relates to an electric heater (1) for heating fluid streams with a heating element (2) and a control device (3) for controlling a heat output produced by the heating element (2), wherein the heating element (2) has an inductance (L_RHK) that changes on the basis of the temperature, and wherein an overheating detection device (4) is provided that is configured to sense a change in the current (Iheat) flowing through the heating element (2) caused by a change in the inductance (L_RHK) and to compare said sensed change with a previously defined limit value and to determine overheating in the electric heater (1) in the event of the limit value being exceeded. The invention further relates to a method for detecting overheating in such an electric heater (1).


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    Title :

    ELEKTRISCHER HEIZER UND VERFAHREN ZUM ERKENNEN EINER ÜBERHITZUNG EINES SOLCHEN ELEKTRISCHEN HEIZERS


    Additional title:

    ELECTRIC HEATER AND METHOD FOR DETECTING OVERHEATING IN SUCH AN ELECTRIC HEATER
    DISPOSITIF DE CHAUFFAGE ÉLECTRIQUE ET PROCÉDÉ DE DÉTECTION DE SURCHAUFFE D'UN TEL DISPOSITIF DE CHAUFFAGE ÉLECTRIQUE


    Contributors:

    Publication date :

    2023-09-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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