The invention discloses a track circuit. The track circuit comprises a first steel rail, a second steel rail, a power supply circuit, an electronic switch board and a track relay. The power supply circuit is used for converting a power frequency power supply into different direct-current voltage levels and outputting the direct-current voltage levels by a first direct-current end and a second direct-current end respectively to supply power to a first steel rail and a second steel rail; the electronic switch board is connected with the power receiving end of the first steel rail, the power receiving end of the second steel rail and the second end of the track relay and used for controlling connection and disconnection between the power receiving end of the second steel rail and the second end of the track relay according to the relative relation between the voltage difference between the power receiving ends of the two steel rails and a preset value. The track relay is used for correspondingly sucking up or falling down according to on-off of the power supply line so as to indicate the occupation condition of the track section. According to the scheme, the reliability and sensitivity of the track circuit indication function are improved.

    本发明公开了一种轨道电路。轨道电路包括:第一钢轨、第二钢轨、供电电路、电子开关板和轨道继电器;供电电路用于将工频电源转换为不同的直流电压等级并分别由第一直流端和第二直流端输出,为第一钢轨和第二钢轨供电;电子开关板分别连接第一钢轨的受电端、第二钢轨的受电端和轨道继电器的第二端,用于根据两个钢轨受电端的电压差与预设值之间的相对关系控制第二钢轨的受电端与轨道继电器的第二端之间的通断;轨道继电器用于根据供电线路的通断对应吸起或落下,以指示轨道区段的占用情况。本方案提高了轨道电路指示功能的可靠性和灵敏度。


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    Titel :

    Track circuit


    Weitere Titelangaben:

    一种轨道电路


    Beteiligte:
    LIU MINGCAI (Autor:in) / CHEN GAOHUI (Autor:in) / ZHUO HANQUAN (Autor:in) / ZHENG YUEYONG (Autor:in)

    Erscheinungsdatum :

    2022-06-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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