A seat heater device initiates power supply upon operation of a switch by a seat occupant within a vehicle interior and includes a heater for warming installed in a seat within the vehicle interior and a control unit for controlling energization of the heater for warming. The control unit includes a low-voltage detecting means for detecting whether an input voltage is a regular drive voltage value of the control unit or a voltage value lower than a predetermined voltage value and a switching element that is turned on when the low-voltage detecting means detects the regular drive voltage value of the control unit and turned off when the low-voltage detecting means detects a voltage value lower than the predetermined voltage value. This configuration can avoid heat generation of the switching element even if a leakage occurs in an electronic circuit within the switch due to, for example, insulation failure.


    Access

    Download


    Export, share and cite



    Title :

    Seat heater device


    Contributors:

    Publication date :

    2016-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



    SEAT HEATER DEVICE

    FUJII TAKAHISA / ITO SHUJI / ISHIKAWA KIMII et al. | European Patent Office | 2020

    Free access

    SEAT HEATER DEVICE

    NAITO HIROSHI / HYODO TAKAAKI | European Patent Office | 2021

    Free access

    SEAT HEATER DEVICE

    YOSHIMOTO KOJI | European Patent Office | 2020

    Free access

    SEAT HEATER DEVICE

    FUJII TAKAHISA / ITO SHUJI / ISHIKAWA KIMITAKE et al. | European Patent Office | 2020

    Free access

    SEAT HEATER DEVICE

    ISHII ATSUSHI / YOKOYAMA TAKASHI | European Patent Office | 2018

    Free access