Integrated shield and protection sensor

Abstract

The invention provides an integrated shield and protection sensor which comprises a sensing probe, a cable portion and a sealing connection flange. A flange base of the sealing connection flange is fixedly mounted on a box, the sensing probe is arranged in the box, a sealing sleeve is detachably fixed on a base plate of the flange base, the outer end of the sealing sleeve is connected with a pressing cover in a threaded manner, the sealing sleeve is embedded between the pressing cover and the flange base, the cable portion penetrates the box, the flange base, a sealing rubber sleeve and a cable hole of the pressing cover, and the sealing sleeve is extruded by screwing the pressing cover and can function in sealing. By the aid of the technical scheme, a signal transmission cable connector joint connecting structure is abandoned, and a transmission cable has continuous and complete shield and protection functions and can reliably work in working environments with strong vibration and strong interference.

Description

technical field [0001] The patent application of the present invention relates to the sensor transmission cable lead layout technology, in particular, it relates to the transmission cable lead layout technology of various detection quantity integrated sensors working in an environment full of electromagnetic interference signals. Background technique [0002] Take the shaft integrated sensor for high-speed trains as an example. The sensing probe is installed at the shaft end inside the shaft box, and the temperature sensing part and the speed sensing part are integrated inside. There are many harness leads in the transmission cable, and the signal in the shaft box The transmission cable is connected with the cable outside the axle box through the electrical connector on the axle box. Since the integrated sensor is in the high-speed running state of the high-speed train, continuous and strong vibration will affect the connection performance of the plug connector, resulting in...

AI Technical Summary

Problems solved by technology

However, with the existing technology of connector connection structure, the joint part becomes the interruption link of shielding protection, and interference signals including electromagnetic interference are coupled and induced into the line, which seriously interferes with the detection of normal signals, making it deviate from the actual detection value, resulting in Real-time detection of failures and abnormalities; secondly, the corner structure of the transmission cable in the axle box is also a hidden danger of shielding leakage

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