Anti-vibration pressure sensor resistant to transient oil pressure impact

Abstract

The invention discloses an anti-vibration pressure sensor resistant to transient oil pressure impact. The pressure sensor includes a base, a housing, a core, a lower ring, an upper ring, a lower circuit board, an upper circuit board, an insulation ring, a plurality of solder pins and a buffer member disposed between the base and the core. The lower ring, the upper ring and the lower circuit board are disposed in the housing. The bottom end of the lower ring is fixed onto the base, and the top end of the lower ring is connected fixedly with the bottom of the upper ring. The lower circuit board and the upper circuit board are both fixed in the upper ring and are separated from each other through the insulation ring. The lower circuit board and the upper circuit board are mounted and fixed through the plurality of solder pins and are electrically connected. The bottom ends of the solder pins are connected electrically with the core through wires. The invention has the advantages of increasing the circuit board layout area, avoiding the long screw connection and improving the anti-vibration capability.

Description

technical field [0001] The invention relates to the field of pressure sensors, in particular to an oil pressure sensor used in a high-intensity vibration environment with instantaneous impact. Background technique [0002] Pressure sensors are widely used in engine fuel systems in aviation, ships, weapons and other fields. This application requires pressure sensors to be able to withstand instantaneous high oil pressure shocks when the engine starts and switches between different working stages, and has good anti-vibration performance. Due to the lack of protective measures in the pressure introduction port of the traditional pressure sensor, the pressure-sensitive core is easily damaged after high-pressure fatigue, and the conditioning circuit board connected by long screws will also cause output distortion and other problems in a high-vibration environment. Contents of the invention [0003] Based on the deficiencies of the existing technology, the problem to be solved b...

AI Technical Summary

Problems solved by technology

Due to the lack of protective measures in the pressure introduction port of the traditional pressure sensor, the pressure sensing core is easily damaged after high-pressure fatigue, and the conditioning circuit board connected by long screws will also cause output distortion and other problems in high-vibration environments

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