Electrical Connector Shielding Shell Spring Tangs Lengthening
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Solution Overview
Problem
Existing electrical connectors with spring tangs on shielding shells or outer metallic shields lack sufficient mechanical properties, particularly in terms of length and stability, which affects their performance in grounding and mating with complementary connectors.
Innovation Solution
The spring tangs are extended from the metallic shield rather than the shielding shell, with a bulge spacing the metallic shield from the shell to increase their length and improve mechanical properties, and are preloaded to provide stable force variation during mating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If spring tangs are made longer to improve mechanical properties and grounding stability, then the mechanical strength and flexibility are enhanced, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The spring tang is extended in the longitudinal direction (another dimension) by spacing the metallic shield from the shielding shell using a bulge, rather than increasing width or height. This dimensional extension improves mechanical properties while maintaining a compact overall structure.
Solution Approach 2:
The spring tang is preloaded during assembly by the spacing between the metallic shield and shielding shell, creating preliminary tension that enhances its mechanical properties and grounding stability before actual use.
2Length of moving object
If spring tangs are extended through spacing the metallic shield from the shielding shell, then the length and flexibility are increased, but the device complexity increases
Solution Approach 1:
The bulge that spaces the metallic shield from the shielding shell is integrated as part of the metallic shield structure itself, merging the spacing function with the shield structure to avoid adding separate components and reducing overall device complexity.
Solution Approach 2:
The spaced configuration of the metallic shield relative to the shielding shell serves multiple functions: it extends the spring tang length, provides grounding stability, and creates preloading. This multi-functionality reduces the need for additional components.
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
This configuration enhances the mechanical properties of the spring tangs, ensuring improved grounding and stable mating performance by increasing their length and flexibility, while maintaining rigidity through the use of bulges.
Implementation Method 1
a pair of spring tangs extending rearward through the pair of shielding shell holes, respectively; wherein the metallic shield main part is spaced a distance from the shielding shell
Data Source
AI summary
An electrical connector includes: an insulative housing having a base and a tongue; an upper and lower rows of contacts secured to the housing and exposed respectively to an upper and lower surfaces of the tongue; a shielding shell enclosing the insulative housing, the shielding shell having a pair of holes; and a metallic shield attached to the shielding shell, the metallic shield having a main part, the main part having a pair of spring tangs extending rearward through the pair of shielding shell holes, respectively; wherein the metallic shield main part is spaced a distance from the shielding shell.