The invention discloses a hollow steering wheel angle sensor for agricultural machinery, which adopts a hollow sensor main body, and four corners of the hollow sensor main body are provided with outer connecting holes, so that the hollow steering wheel angle sensor can be conveniently fixed with a vehicle body; one side of the sensor is provided with a cross-shaped PCB circuit board installation groove, a PCB circuit board and four Hall chips forming 90 degrees with each other are installed in the installation groove, and changes of a magnetic field are sensed in an omnibearing mode. A transmission wheel is arranged in the center hole and matched with the transmission shaft, and an annular magnet is fixed to the wheel and matched with a Hall chip to collect steering wheel turning angle information. An angle detection decoding chip, a microprocessor, a power supply chip and a CAN bus chip are integrated on the PCB, so that multiple functions of signal conversion, data processing, communication and power supply are realized; and the lower cover plate and the sensor main body enclose a sealed cavity which is filled with an insulating sealant, so that the protection grade is improved. The sensor solves the problems of complicated modification, complicated structure and insufficient protection of the steering wheel angle sensor of the agricultural machinery, realizes easy installation, high stability and strong protection, and provides reliable guarantee for the agricultural machinery.

    本发明公开了一种用于农业机械的空心式方向盘转角传感器,它采用空心式传感器主体,四角设有外连接孔,便于与车体固定;传感器一侧设有十字型PCB电路板安装槽,内装PCB电路板及四个互成90°的霍尔芯片,全方位感知磁场变化;中心孔内设传动轮,与传动轴配合,轮上固定环形磁铁,与霍尔芯片配合采集方向盘转角信息;PCB电路板上集成角度检测解码芯片、微处理器、电源芯片及CAN总线芯片,实现信号转换、数据处理、通信及电源供应多功能;下盖板与传感器主体围合密封腔室,内填绝缘密封胶,提升防护等级。此传感器解决农业机械方向盘转角传感器改装复杂、结构繁琐及防护不足问题,实现易安装、高稳定、强防护,为农业机械提供可靠保障。


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    Title :

    Hollow steering wheel angle sensor for agricultural machinery


    Additional title:

    一种用于农业机械的空心式方向盘转角传感器


    Contributors:
    LIU JIALIANG (author) / ZHANG FAN (author) / WANG WENBO (author) / LI SHUSHENG (author)

    Publication date :

    2025-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B62D MOTOR VEHICLES , Motorfahrzeuge



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