Electromagnetic shielding and sealing water-proof method for onboard electronic nacelle body covering cap

Abstract

The invention provides an electromagnetic shielding and sealing water-proof method for an onboard electronic nacelle body covering cap. The invention provides a solution to the problem that the water-proof requirement can not be satisfied even if a conducting sealing strip or a conducting sealing pad is stuck on the surface of a buccal frame when the buccal frame of the onboard electronic nacelle body and the covering cap are in butt-joint sealing. The electromagnetic shielding and sealing water-proof method for the onboard electronic nacelle body covering cap comprises the following steps: firstly, processing a tool covering cap; then, pre-filling XM-60 sealant on the joint face of the nacelle body buccal frame, and coating release agent on the position on which the buccal frame and the tool covering cap do not need to be adhered with the sealant; thirdly, installing and fixing the tool covering cap, unloading the tool covering cap when the sealant is solidified, and engraving a conducting sealing strip mounting groove on the adhesive layer around the nacelle body buccal frame; and finally, adhering the conducting sealing strip in the groove. Therefore, water can be prevented when the XM-60 sealant is filled in an inner ring, and electromagnetic shielding can be carried out when the conducting sealing strip is adhered on an outer ring. The electromagnetic shielding and sealing water-proof method for the onboard electronic nacelle body covering cap can be applied to the military and civil product field which not only requires the electromagnetic shielding but also requires the sealing water prevention.

Description

technical field [0001] The invention belongs to the three technical fields of machinery, electromagnetics and protection, and relates to an electromagnetic shielding, sealing and waterproofing method for the hatch cover of an airborne electronic pod, which can be applied to military and civilian applications that not only meet the requirements of electromagnetic shielding but must also be sealed and waterproof product area. Background technique [0002] In order to install and maintain the electronic equipment in the cabin, windows of different sizes and shapes are opened on the body of the airborne electronic pod. The pod is an airborne suspended object. Rainwater leakage from the cover may cause short circuit of electronic components and failure of component control. Therefore, waterproofing of the cover is the key point of waterproofing the airborne electronic pod. [0003] The basic forms of cover seals are rubber gasket seals and groove seals. The rubber gasket seal i...

AI Technical Summary

Problems solved by technology

The advantages of this kind of seal are simple shape, easy processing, convenient installation and fixing, simple, easy and economical, but its disadvantage is that it does not have good sealing performance for surface discontinuities, small gaps, and rough and uneven parts.

The skeleton of an airborne electronic pod is a riveted thin-walled structure, and self-locking nuts are riveted on it, and the surface of the mouth frame is extremely uneven. The pod cannot be sealed with a conductive gasket.

The wall at the interface between the door cover and the frame of the airborne electronic pod is thin and narrow, so it is impossible to set grooves on the existing structure

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