Anti-vibration pressure sensor resistant to transient oil pressure impact

A pressure sensor, anti-vibration technology, applied in the direction of measuring fluid pressure, measuring fluid pressure through electromagnetic components, instruments, etc., can solve the problems of output distortion, pressure-sensitive core damage, etc., to increase the layout area, improve the resistance The effect of vibrating ability

Active Publication Date: 2015-12-16
48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Anti-vibration pressure sensor resistant to transient oil pressure impact
  • Anti-vibration pressure sensor resistant to transient oil pressure impact
  • Anti-vibration pressure sensor resistant to transient oil pressure impact

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Embodiment Construction

[0030] A pressure sensor that is resistant to vibration and instantaneous oil pressure shock, such as figure 1 As shown, it includes a base 1 and a shell 7, the inner wall of the pressure introduction hole of the base 1 is screwed to the buffer 2, the top of the base 1 is welded to the core 4; the core 4 and the buffer 2 are connected by a pad The sheet 3 is compressed to achieve flexible connection; the lower end of the lower ring 5 is welded into one body with the base 1, and the lower ring 5 is provided with a positioning slot for the lower circuit board 6 inside, such as figure 2 As shown, the positioning structure is a boss 5a arranged on the inner wall of the lower ring 5; the inner wall of the lower ring 5 is also provided with a groove 5b to avoid welding spots; the upper end of the lower ring 5 is welded to the upper ring 10 Integral, the upper circuit board 9 and the lower circuit board 6 are insulated by the insulating ring 8, electrically connected and fixed by th...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00G01L19/06
Inventor 张龙赐王玉明金忠何迎辉谢锋
Owner 48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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