Glass sintering sealed through-wall electric coupler

Abstract

A glass sintering sealed through-wall electric coupler comprises a conductor insertion needle (11), first ceramic insulators (13), a glass insulator (12), second ceramic insulators (14) and a shell (15). Bosses (131) protruding outwards are arranged on the back end surfaces (132) of the first ceramic insulators (13), cavities (141) sunken inwards are formed in the front end surfaces (142) of the second ceramic insulators (14), and the bosses (131) extend into the cavities (141) in the axial direction. The first ceramic insulators (13) or the second ceramic insulators (14) are installed on the shortest path from any point on the conductor insertion needle (11) to the shell (15). According to the electric coupler, the creep distance of any point on the conductor insertion needle (11) to the glass interface of the shell (15) is increased, and therefore the insulation resistance and the voltage-resistance performance of the coupler are improved.

Description

technical field [0001] The invention relates to the technical field of sealed connectors, in particular to a glass sintered and sealed through-wall electrical connector which can be installed on a partition wall to realize high temperature and high pressure at one end of the wall and normal pressure at the other end. Background technique [0002] Generally, in the fields of oil drilling and well logging, as well as subsea underwater detection operations, electronic equipment is often essential to realize functions such as transmission and analysis of electronic signals. The above-mentioned electronic equipment will encounter much higher pressure, or pressure and temperature, that is, harsh environments such as high pressure or high temperature and high pressure in the underground or on the seabed. In this environment, in order to ensure the reliable operation of electronic equipment, it must be placed in a closed container, and a through-wall connector is installed on the co...

AI Technical Summary

Problems solved by technology

The connector has high requirements on the weight control of the glass blank during the glass sintering process. When the amount of glass is large, the glass tends to climb and overflow along the gap between the first ceramic insulator 13 and the shell 15, affecting the external structural size of the product; the amount of glass When it is small, small air bubbles ( figure 2 ), even the rear end surface 132 of the first ceramic insulator 13 is not in contact with the glass front interface 122, forming a layer of air layer 17 ( image 3 ), which seriously affects the insulation resistance and other electrical properties of the product

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