Method for allowing laptop interface to achieve electromagnetic compatibility and to be prevented from getting wet in rain

An electromagnetic compatibility and notebook technology, which is applied in the parts of the connection device, the manufacture of the contact box/base, and the circuit, etc., can solve the problems of poor mechanical properties such as tensile strength and tear strength, oil resistance, and solvent resistance. Good, poor physical and mechanical properties, etc., to meet the requirements of electromagnetic compatibility and achieve the effect of rainproof sealing

Inactive Publication Date: 2015-03-25
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of silicone rubber such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Poor, so silicone rubber is not suitable for ordinary conditions, but very suitable for many specific occasions

Method used

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  • Method for allowing laptop interface to achieve electromagnetic compatibility and to be prevented from getting wet in rain
  • Method for allowing laptop interface to achieve electromagnetic compatibility and to be prevented from getting wet in rain
  • Method for allowing laptop interface to achieve electromagnetic compatibility and to be prevented from getting wet in rain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for realizing electromagnetic compatibility and rain protection of a notebook interface. The silicon rubber door 1 is treated with a double-layer shielding method of metal mesh 3 and a conductive coating 2. The conductive coating 2 is sprayed on the surface of the silicone rubber material, and the silicone rubber The internal wire mesh layer 3 is embedded, and the wire mesh 3 extends to the surface layer of the silicone rubber door 1 to form a double-layer shielding of the wire mesh 3 and the conductive coating 2; After the silicone rubber door 1 is closed, the conductive coating 2 contacts with the casing to form a layer of shielding; the wire mesh 3 contacts with the casing 5 under the pretightening force of the silicone rubber door 1 to form a second layer of shielding.

Embodiment 2

[0019] On the basis of Embodiment 1, the notebook interface 7 in this embodiment uses components with a metal shielding layer, and the metal shielding layer overlaps with the casing 5 through the grounding sheet 8 to achieve good grounding.

Embodiment 3

[0021] On the basis of Example 2, the material of the ground sheet 8 in this embodiment is a shrapnel structure, using beryllium bronze material, one end is provided with a fixing hole 9, which is fixed to the metal shielding layer of the interface 7, and the other end is a cantilever 10, which overlaps the interface. 7 metal case. The grounding piece directly presses the metal shielding layer of the interface to shorten the grounding path to ensure good grounding of the interface shielding layer.

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Abstract

The invention discloses a method for allowing a laptop interface to achieve electromagnetic compatibility and to be prevented from getting wet in rain. A silicone rubber door is processed through the wire mesh and conductive coating dual-layer shielding method, the surface of a silicone rubber material is coated with a conductive coating in a spray mode, a wire mesh layer is embedded in the silicone rubber material, a piece of wire mesh extends to the surface layer of the silicone rubber door, and the wire mesh and conductive coating dual-layer shielding is achieved; shielding layers and a machine shell are pressed tightly through the elasticity of silicone rubber; the conductive coating makes contact with the periphery of the machine shell after the silicone rubber door is closed, and the first layer of shielding is formed; the wire mesh makes contact with the machine shell under the preload of the silicone rubber door, and the second layer of shielding is formed. By means of the technology, while the elasticity of the silicone rubber material is fully utilized to achieve interface sealing, the requirement for electromagnetic compatibility of the military laptop interface can be met; due to the elasticity of the silicone rubber material, the requirements for rain prevention and sealing are met.

Description

technical field [0001] The invention relates to the field of computer electromagnetic compatibility, in particular to a method for realizing electromagnetic compatibility and rain protection of a notebook interface. technical background [0002] Military computers are mostly used in relatively harsh environments, and need to meet the requirements of the national military standard for electromagnetic shielding, especially for computers used in the field, they also need to meet the requirements of rain protection. Considering the versatility of equipment, military computers often use non-aviation sockets such as standard USB ports and audio ports, which makes it difficult for the interface to be electromagnetically compatible and rain-proof. Silicone rubber doors are widely used in the interface protection of civilian computers because of their low price and ease of use, but they cannot meet the electromagnetic compatibility requirements of military computers because they are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/52H01R13/6581H01R43/00H01R43/18
CPCH01R13/5213H01R13/6581H01R43/005H01R43/18
Inventor 李义臣鹿博
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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