High-pressure-resistant optical fiber cabin-penetrating connector sealed by combined glue and sealing method

Abstract

The invention specifically discloses a high-pressure-resistant optical fiber cabin-penetrating connector sealed by combined glue and a sealing method. The connector comprises an optical fiber sheath, an optical fiber protection cover, a fiber distribution disc and a sealing flange seat. The sealing flange seat is provided with a first potting hole for potting silicone rubber, and a second potting hole and a third potting hole for potting epoxy resin glue; and an optical fiber coating layer of the optical fiber at the sealing positions of the second potting hole and the third potting hole is stripped, so that the internal coating layer of the optical fiber is directly bonded with the potting epoxy resin glue. According to the invention, a silicone rubber and epoxy resin adhesive combined sealing mode is adopted, the coating layer at the sealing positions of the optical fiber corresponding to the second potting hole and the third potting hole is stripped, so that the cladding in the optical fiber is directly bonded with the epoxy resin adhesive, and the silicone rubber is directly bonded with the coating layer at the first potting hole; and the high-pressure-resistant sealing performance and the high-temperature-resistant performance of the sealing structure are effectively improved.

Description

technical field [0001] The invention relates to the technical field of optical fiber sensing engineering, in particular to a combination glue-sealed high-voltage resistant optical fiber cabin penetration connector and a sealing method. Background technique [0002] Optical fiber hydrophone is a new type of underwater acoustic sensor with optical fiber as the sensing and transmission medium. It detects underwater sound field information based on the principle of optical coherent detection. It introduces advanced photoelectric detection mechanism and optical fiber communication mechanism into underwater acoustic detection technology. After years of technical research and application verification, it has demonstrated the excellent detection performance and long transmission distance of underwater acoustic signals, large array scale, high reliability, and environmental protection. Good adaptability and other advantages are an important direction for the development of a new gene...

AI Technical Summary

Problems solved by technology

[0003] In the field of deep-sea optical fiber sensing and detection, sometimes it is necessary to transmit the optical signal of the optical fiber hydrophone to the inside of the sealed cabin. The optical fiber as the signal carrier needs to be sealed through the cabin. The commonly used sealing method for the cabin is to bond and seal the optical fiber and epoxy resin. The commonly used material for optical fiber coating is acrylic resin, which has poor adhesion to epoxy resin. Therefore, this method has low sealing performance against high pressure and poor high temperature resistance.

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