A vehicle
chassis height sensor relates to a vehicle
chassis height detecting device which is characterized by utilizing an electric or magnetic method, and particularly relates to a hall type vehicle
chassis height sensor used for vehicle
light control. The vehicle chassis height sensor comprises a shell, a rotation unit, a swing arm unit and a hall sensing unit, wherein the rotation unit includes a rotary shaft and a magnetic steel, a first cavity and a second cavity are arranged on the lower portion of the shell, the magnetic steel is placed in the first cavity, a hall
chip is flatly posted on a circuit board, close to and aligned to the magnetic steel, the circuit board is fixed in the second cavity through sealing fillers, and the swing arm unit is in an integrated structure by an entire injection molding. A
stator portion is omitted, under the condition that the detecting function and accuracy of the sensor are maintained, the manufacturing cost of the sensor is reduced, by means of a swing arm ball stud structure which utilizes curable fillers to perform a sealing
perfusion and an entire injection molding, disturbances of an application environment can be reduced, and influences of
assembly errors to the accuracy can be reduced, so that the
assembly process of the sensor is simple and rapid.