Fixing device of leading-out cable of pressure sensor

Abstract

The invention relates to a fixing device of a leading-out cable of a pressure sensor, and aims to solve the problems that the existing pressure sensor is damaged or measure failure is caused due to the fact that the leading-out cable is not fixed. A fastening spring screw is arranged between an outer cover of the pressure sensor and a leading-out terminal of the leading-out cable and is near to the leading-out cable after passing through the outer cover of the pressure sensor, a cable-protecting spring and a pouring sealant. Furthermore, a fastening spring screw pouring sealant ring groove is formed in the inner wall of a part in which the pouring sealant is filled, of the outer cover of the pressure sensor. Based on the arrangement of the fastening spring screw and the fastening spring screw pouring sealant ring groove, the outer cover, the cable-protecting spring and the pouring sealant of the pressure sensor and the leading-out cable are fixed into a whole after the pouring sealant is solidified, so that the leading-out cable can be firmly connected with a transmitting circuit board always no matter the pressure sensor is used under a severe environment or a vibration environment. Thus, the normal use of the pressure sensor is ensured.

Description

technical field [0001] The invention belongs to the technical field of automation instruments, and in particular relates to a fixing device for leading out cables of a pressure sensor. Background technique [0002] Pressure sensors are widely used measuring instruments in petroleum, chemical, electric power and other industrial processes. Especially when the oil industry needs to measure the mud pressure, since the pressure sensor needs to work in the open air, it is in an all-weather working state, and it needs to withstand the ambient temperature of -40°C to 60°C, as well as relatively strong vibration. In the past pressure sensor, due to the imperfect handling of the lead-out cable, although the pressure sensor chip functioned normally, due to the influence of the harsh environment, the lead-out cable of the pressure sensor was disconnected, resulting in the failure of the entire pressure sensor. After dissecting the pressure sensors retrieved from the site, it can be se...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of damage and measurement failure caused by the poor fixing of the lead-out cable of the existing pressure sensor, the present invention proposes a new pressure sensor lead-out cable fixing device. The pressure sensor lead-out cable fixing device is provided with fastening spring screws And the fastening spring glue potting ring groove, after the potting glue is cured, the outer cover of the pressure sensor, the wire guard spring, the potting glue and the lead-out cable are fixed to form a whole, so that the pressure sensor can be used in harsh (vibration) environments. When in use, the lead-out cable can always be firmly connected with the transmission circuit board, wire guard spring, and sensor cover, thus ensuring the normal use of the pressure sensor

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