The invention discloses a displacement sensor structure, which is used for an automobile electronic brake system, and comprises a split type magnet assembly which is fixed on a push rod piston assembly of the automobile electronic brake system, can reciprocate in a blind hole in an HCU valve block along with the push rod piston assembly, and can change a magnetic field above a PTS-PCBA; the PTS-PCBA is arranged in the ECU shell below the blind hole, is provided with a Hall chip, and is connected with the ECU-PCBA through a signal connecting piece; an ECU-PCBA (Electronic Control Unit-Printed Circuit Board Assembly) arranged in the ECU housing below the PTS-PCBA; and the HCU valve block and the ECU shell are fixed together. An independent Hall chip assembly does not need to be arranged, a large magnet in the prior art is optimized into the two small magnets with the N poles arranged oppositely, the Hall chip and the ECU are integrated, the number of parts is reduced, the process complexity is lowered, and the sensor matching precision is improved.
本发明公开了一种位移传感器结构,其用于汽车电子制动系统,包括:分体式磁铁组件,其固定在汽车电子制动系统的推杆活塞组件上,能随着推杆活塞组件在HCU阀块上的盲孔中往复运动,其能改变PTS‑PCBA上方磁场;PTS‑PCBA,其布置在盲孔下方的ECU壳体中,其具有霍尔芯片,其通过信号连接件连接ECU‑PCBA;ECU‑PCBA,其布置在PTS‑PCBA下方的ECU壳体中;HCU阀块和ECU壳体固定在一起。本发明不需要设置独立的霍尔芯片总成,将现有技术一大块磁体,优化为N极相对布置的两块小磁体将霍尔芯片与ECU集合一体,减少了零件数量、降低了工艺复杂程度、提高了传感器匹配精度。
Displacement sensor structure
位移传感器结构
2023-09-29
Patent
Electronic Resource
Chinese
STRUCTURE FOR DISPLACEMENT SENSOR AND PEDAL DISPLACEMENT SENSOR HAVING THE SAME
European Patent Office | 2022
|