Surface Mount Clip Structure for Stable Shield Case Contact
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Solution Overview
Problem
Existing surface mount clips face issues with electrical stability due to deformation of clip spring portions when securing a shielding case, leading to unstable contact and potential separation during vibrations.
Innovation Solution
A surface mount clip design featuring a bottom portion with clip spring portions and a bottom spring portion that is resiliently deformed by the inserted shielding case, providing enhanced contact and conduction, along with a raised bottom section for improved fixation and reduced distortion influence, and a protrusion for increased holding force, facilitating both secure attachment and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If clip spring portions are deformed to achieve clipping of the shielding case, then the shielding case can be secured, but contact between the clip spring portions and the shielding case becomes unstable
Solution Approach 1:
The clip is divided into distinct functional segments: clip spring portions for clipping force and a bottom spring portion for electrical contact. This segmentation allows each part to optimize its function independently, with the bottom spring portion providing stable electrical contact while the clip spring portions provide clipping force.
Solution Approach 2:
The bottom spring portion acts as an intermediary element between the clip spring portions and the shielding case, ensuring stable electrical contact. It mediates the connection by providing a dedicated contact surface that is pressed by the lower end of the shielding case, maintaining reliable electrical stability.
2Device complexity
If only clip springs are used to secure the shielding case, then the structure is simple, but electrical stability is insufficient
Solution Approach 1:
The bottom spring portion serves multiple functions: it provides electrical contact, absorbs vibration, and maintains clipping force. By integrating these functions into a single element, the overall device complexity is minimized while achieving improved electrical stability.
Solution Approach 2:
The bottom spring portion is designed with specific physical parameters (resilient properties, contact surface area) that enable it to maintain stable electrical contact under varying conditions. The resilient nature of the bottom spring portion allows it to adapt to vibrations and maintain consistent contact pressure.
3Reliability
If the bottom spring portion is made resilient to ensure contact during vibration, then electrical stability improves, but the conduction path becomes longer
Solution Approach 1:
The bottom spring portion extends in the vertical dimension from the bottom portion, creating a short conduction path that contacts the lower end of the shielding case. This dimensional arrangement minimizes the conduction path length while maintaining resilient contact capability.
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 design ensures stable electrical contact and improved holding force, reducing noise interference and impedance, while allowing for efficient removal of the shielding case, thus enhancing electromagnetic compatibility (EMC) and mechanical stability.
Implementation Method 1
a bottom spring portion which is formed by cutting and raising a part of the bottom portion or the clip spring portions, and which has an upper surface to be pressed by a lower end of the plate material inserted between the pair of the clip spring portions
Implementation Method 2
clip spring portions which extend from parts of the bottom portion and are provided in a standing manner, in a pair facing each other so as to form a gap therebetween, and which clip a plate material inserted into the gap by a resilient repulsive force
Data Source
AI summary
A surface mount clip includes: a bottom portion having a flat surface; clip spring portions which extend from parts of the bottom portion and are provided in a standing manner, in a pair facing each other so as to form a gap therebetween, and which are configured to clip a plate material inserted into the gap by a resilient repulsive force; and a bottom spring portion which is formed by cutting and raising a part of the bottom portion or the clip spring portions, and which has an upper surface to be pressed by a lower end of the plate material inserted between the pair of the clip spring portions.