Electromagnetic Shielding Box Assembly With Elastic Conductive Grounding
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Solution Overview
Problem
Existing electromagnetic shielding methods are costly, complex, and lack flexibility, negatively impacting electromagnetic compatibility performance.
Innovation Solution
An electromagnetic shielding box assembly with a housing, shielding cover, and lid featuring elastic portions that form conductive paths and elastic connections, allowing for flexible installation and reduced complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electromagnetic shielding methods using multiple layers of metal shielding housings assembled with screws, bolts, and welds are employed, then electromagnetic shielding performance can be achieved, but the cost increases, connection process becomes complex, and installation flexibility is reduced
Solution Approach 1:
The patent employs an elastic portion (flexible conductive element) that can deform elastically to establish electrical connection between the shielding cover and working component. This flexible connection replaces rigid mechanical fasteners (screws, bolts, welds), achieving both reliable electromagnetic shielding through continuous conductive contact and simplified installation without complex connection processes
Solution Approach 2:
The elastic portion acts as an intermediary element between the shielding cover and working component, providing both mechanical connection and electrical conduction. This single intermediary element replaces multiple connection components (screws, bolts, welds), reducing device complexity while maintaining shielding effectiveness through ensured electrical continuity
2Reliability
If traditional electromagnetic shielding methods with multiple connection components are used, then shielding integrity can be maintained, but installation and use flexibility is reduced
Solution Approach 1:
The elastic portion's ability to deform elastically allows for flexible installation and adjustment while maintaining continuous electrical contact. The flexibility enables easy assembly and disassembly without damaging components, yet ensures shielding integrity through reliable conductive connection between shielding elements and working components
Solution Approach 2:
The elastic portion changes its physical state (deforms elastically) to accommodate different installation conditions and positions. This parameter change (shape deformation within elastic limit) allows flexible installation while maintaining the critical parameter of electrical conductivity for shielding integrity
3Reliability
If direct hard connections are used for grounding in electromagnetic shielding devices, then electrical connection can be established, but costs increase and the connection process becomes complex
Solution Approach 1:
The elastic portion serves as both the connection element and grounding path, eliminating the need for separate hard connection components and grounding wires. This single integrated element reduces manufacturing cost while ensuring reliable electrical connection through its inherent conductivity and elastic contact mechanism
Solution Approach 2:
The invention merges the functions of mechanical connection and electrical grounding into a single elastic portion. This consolidation replaces multiple separate components (connection hardware plus grounding elements), reducing manufacturing complexity and cost while maintaining reliable electrical connection for shielding effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides reliable electromagnetic shielding with lower costs and simpler installation, enhancing electromagnetic compatibility and stability while allowing greater space for electronic equipment.
Implementation Method 1
the first elastic portion extends outward from the body of the shielding cover, passes through the through hole, and then elastically abuts against a working component located outside the housing
Data Source
AI summary
An electromagnetic shielding box assembly and an electromechanical device are disclosed. The electromagnetic shielding box assembly includes a housing, a shielding cover and a shielding lid. The shielding cover is arranged in the housing, and the shielding lid is arranged on the housing and the shielding cover to form a shielding space for arranging an electronic device therein. The housing has at least one through hole penetrating the housing, and the shielding cover has at least one first elastic portion. The first elastic portion extends outward from the body of the shielding cover, passes through the through hole, and then elastically abuts against a working component located outside the housing, thereby forming a conductive path from the shielding cover to the working component. By way of the above, lower costs, a simple connection process, and flexible, convenient installation and use are achieved, all while ensuring reliable performance.