A landing-door switch circuit according to the present disclosure includes an upper-car safety circuit, an upper-car auxiliary circuit, a lower-car safety circuit, and a lower-car auxiliary circuit. The upper-car safety circuit and the lower-car safety circuit connect excitation coils of switching devices of a power supply for driving an upper car and a lower car, respectively, and a power supply, and include main circuits in which landing-door switches are connected in series, and first connection units and third connection units branched from the main circuits. The upper-car auxiliary circuit and the lower-car auxiliary circuit include a second connection unit and a fourth connection unit on the lower car and the upper car, respectively, to bypass the landing-door switches.


    Access

    Download


    Export, share and cite



    Title :

    LANDING-DOOR SWITCH CIRCUIT


    Contributors:

    Publication date :

    2024-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



    Landing door switch circuit

    KUBOTA TAKEHIKO | European Patent Office | 2023

    Free access

    LANDING DOOR SWITCH CIRCUIT

    KUBOTA TAKEHIKO | European Patent Office | 2022

    Free access

    High-sensitivity landing door switch

    DAI JUNJIE | European Patent Office | 2021

    Free access

    PIT SWITCH MODULE OF LANDING DOOR OF ELEVATOR

    KIM YONG HUN / BAE JONG-KON / EUNJIN KWON et al. | European Patent Office | 2018

    Free access

    DOOR SWITCH INSPECTION DEVICE AND DETECTION METHOD FOR ABNORMAL STATE OF LANDING DOOR SWITCH

    YAMADA ATSUSHI / SEKI HISANORI | European Patent Office | 2018

    Free access