Tail potting method of cable electric coupler for satellite

Abstract

The invention provides a tail potting method of a cable electric coupler for a satellite. The method includes the steps that first, E-51 epoxy resin and a curing agent thereof are weighed, the E-51 epoxy resin and the curing agent are mixed according to the proportion that the E-51 epoxy resin to the curing agent is 4 to 1, and a bi-component epoxy resin pouring sealant is manufactured and is filled into a container; afterwards, a stirring defoaming machine is started, and a stirring defoaming program is set; the container filled with the bi-component epoxy resin pouring sealant is placed into the stirring defoaming machine, so that stirring and defoaming are carried out; the bi-component epoxy resin pouring sealant after stirring and defoaming is filled into an injection device, the pouring sealant is manually and slowly poured into the tail portion of the cable electric coupler, whether bubbles generate or not is observed at any time, if the bubbles generate, operation is stopped, the defoaming program is executed again, and operation continues after defoaming; at last, the potted able electric coupler is fixed to be solidified. The tail potting method of the cable electric coupler for the satellite achieves visualization of electric coupler welding spots and has the advantages of improving the reliability of the welding spots, prolonging the service life of cables and lowering the working cost.

Description

technical field [0001] The invention relates to the technical field of research and development of satellite overall circuit products, in particular to a tail potting method of a cable electrical connector for a satellite. Background technique [0002] At present, the newly developed satellites have high requirements for long life, high reliability and weight reduction. There are a variety of charged particles in the space environment, which can produce completely different effects, and even charge the surface of the spacecraft to form a high voltage, causing arc discharges on the outer shell, etc., which also threaten extraterrestrial and extraterrestrial cables. The cable is responsible for the power, signal transmission and connection between the stand-alone units on the satellite. It is an important nervous system of the satellite. It needs good insulation performance between its solder joints. At the same time, the entire satellite cable network occupies a high proporti...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic satellite cable connectors basically use metal tail covers to protect the wires and prevent direct exposure of the wires. However, this method cannot realize the visualization of the solder joints and cannot effectively prevent the entry of redundant objects. The tail processing process is more cumbersome, and Since the tail cover is made of metal material, it is used with auxiliary materials such as heat shrinkable film, which increases a certain weight

Especially with the increasing application of new micro-pitch connectors, the high-density layout and ultra-small shape of solder cups and wires bring new challenges to the tail processing method