The invention relates to a sensor for measuring the internal pressure of a tank body for storing volatile liquid in the field of sensors. A cavity is formed in the shell body, and a PCB is installed in the cavity. A pressure sensor assembly is arranged on the PCB; one end of the shell is provided with a plugging port. A plug terminal is embedded in the shell; one end of the plugging terminal extends into the plugging port; the upper side of the shell is provided with an upper cover covering the cavity, the lower side of the shell is provided with a guide column used for being connected with the tank body for installation, the center of the guide column is provided with a vent hole, the PCB is provided with a pressure measuring hole corresponding to the vent hole, and the lower side of thepressure measuring hole in the PCB is connected with the shell in a sealed mode. The vent hole is communicated with the pressure measuring surface of the pressure sensor assembly, and the other surface opposite to the pressure measuring surface of the pressure sensor assembly is communicated with the atmosphere. The sensor is easy to seal, can be conveniently mounted on an automobile oil tank or an oil tank accessory, can resist gasoline steam corrosion, and is good in HC penetration resistance.

    本发明涉及传感器领域内的一种用于测量存储易挥发液体罐体内部压力的传感器,起壳体内设有空腔,空腔内安装有PCB板,PCB板上设有压力传感器组件,壳体的一端设有插接口,壳体内嵌设置有插接端子,插接端子一端伸入插接口内,插接端子另一端与PCB板电连接,壳体上侧设置有遮盖空腔的上盖,壳体下侧设有用于与罐体连接安装的导柱,导柱中心设有通气孔,PCB板上与通气孔对应设有测压孔,PCB板上的测压孔下侧与壳体之间密封连接;通气孔压力传感器组件的测压面,压力传感器组件的测压面相对的另一面接通大气。该装置易于实现密封,可以便捷安装在汽车油箱或油箱附件上,可耐汽油蒸汽腐蚀,同时抗HC渗透性能好。


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    Title :

    Sensor for measuring internal pressure of tank body for storing volatile liquid


    Additional title:

    一种用于测量存储易挥发液体罐体内部压力的传感器


    Contributors:
    LU JIAN (author) / SUN HAIXIN (author) / GU CHANGFEI (author) / LI YUE (author) / ZHU WEIWEI (author)

    Publication date :

    2020-06-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung



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