Anti-couple corrosion electromagnetic shielding sealing press strip

Abstract

The invention provides an anti-couple corrosion electromagnetic shielding sealing press strip; an existing sealing shielding pad is composited by a single conductive rubber pad, a single rubber body and a single conductive rubber strip, can only realize electromagnetic shielding of a cabinet and cabinet electronic equipment, and cannot prevent couple corrosion; the anti-couple corrosion electromagnetic shielding sealing press strip can solve said practical engineering problems. The anti-couple corrosion electromagnetic shielding sealing press strip is realized by the following method: the electromagnetic shielding sealing press strip is an interlayer structure formed by compositing the following parts in one body: an outer layer insulation rubber strip (1)-a middle layer conductive rubberstrip (2)-an inner layer insulation rubber strip (3); the middle layer conductive rubber strip (2) is clamped in a trench formed by the outer layer insulation rubber strip (1) and the inner layer insulation rubber strip (3) in a convex manner; the middle layer conductive rubber strip (2) can realize electromagnetic shielding of the cabinet and cabinet electronic equipment metal base body contacts;the outer layer insulation rubber strip (1) and the inner layer insulation rubber strip (3) and the convex bar of the middle layer conductive rubber strip (2) and the formed elastic extruding trenchcan realize self moisture sealing of the cabinet and cabinet electronic equipment metal base body contacts.

Description

technical field [0001] The invention relates to an electromagnetic shielding sealing bead mainly used in case and cabinet electronic equipment Background technique [0002] For a long time, large-scale electronic equipment such as chassis and cabinets are mostly made of rubber mixed with silver powder or aluminum silver-plated powder. The electromagnetic shielding structure is usually formed between a single conductive rubber pad and the cabinet door. Due to the large volume of electronic equipment in the case and cabinet, and the existence of ventilation and heat dissipation structures, the water vapor seal of the whole machine is poor, or even not sealed. The water vapor in the natural environment is formed by the adsorption of sulfur dioxide, nitrogen dioxide, nitrogen, carbon dioxide, salt spray, etc. The electrolyte is directly infiltrated, soaked, and soaked with a single conductive rubber pad to form an electromagnetic shielding structure between the chassis and the c...

AI Technical Summary

Problems solved by technology

[0008] In order to meet the electromagnetic compatibility and environmental adaptability requirements of the electronic equipment of the cabinet and the cabinet, the purpose of the present invention is to solve the problem that the single conductive rubber pad and the sealing shielding pad in the prior art cannot realize the water vapor seal of the conductive rubber pad and cause the electronic equipment of the cabinet and cabinet to be sealed. The lack of galvanic corrosion in the electromagnetic shielding structure provides an anti-galvanic corrosion resistance with strong corrosion resistance, high electromagnetic shielding efficiency, compact structure, small size, high reliability and long life, and can realize the water vapor seal of the conductive rubber pad itself. Electromagnetic shielding sealing layer to solve the universal engineering problem of galvanic corrosion in the electromagnetic shielding structure of the chassis and cabinet electronic equipment caused by the application of a single conductive rubber pad or sealing shielding gasket

Images