Elastic Contact Structure for Stable Conduction and EMI Shielding
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Solution Overview
Problem
Existing electric connection methods in electronic devices, such as those using warped or twisted plate members, lead to reduced contact area and deteriorated electric conduction, while also allowing electromagnetic noise to leak or radiate outside.
Innovation Solution
An electric connection structure featuring a first member with a protrusion and a second elastically deformable member, where the members are separated by a minimum distance when not in contact and elastically deform to reduce distance when connected, forming a reliable electric path while minimizing electromagnetic noise leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plate spring portion is formed by providing a slit in the holder formed from a metal plate, then electric connection reliability is improved, but electromagnetic noise leakage occurs
Solution Approach 1:
The holder is divided into a body portion and a plate spring portion through a slit, allowing the plate spring portion to independently deform and maintain contact pressure while the body portion remains intact for electromagnetic shielding
Solution Approach 2:
The plate spring portion is extracted from the main holder body through the slit, enabling it to function as a separate elastic contact element that can deform independently to ensure reliable electric connection without compromising the overall structural integrity for noise suppression
2Adaptability or versatility
If plate members with warped or twisted surfaces are used to form electrical contacts, then adaptability to surface irregularities is improved, but contact area is reduced and electric conduction deteriorates
Solution Approach 1:
The plate spring portion is designed to be elastically deformable, allowing it to dynamically adapt to surface irregularities through controlled deformation while maintaining a relatively flat contact surface, thus achieving both adaptability and good electric conduction
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 ensures stable electric conduction and significantly reduces electromagnetic noise radiation, maintaining reliable connection even with repeated attachment and detachment.
Implementation Method 1
the second portion is elastically deformable... In a state in which the first member and the second member are in contact with each other, the second portion is elastically deformed
Data Source
AI summary
An electric connection structure includes a first member having conductivity, and a second member having conductivity and including a first portion and a second portion that is elastically deformable. In a state in which the first member and the second member are not in contact with each other, the second portion and the first portion are separated from each other with a space therebetween, and a minimum distance between the second portion and the first portion is a first distance. In a state in which the first member and the second member are in contact with each other, the second portion is elastically deformed, and the minimum distance between the second portion and the first portion is a second distance smaller than the first distance.