Electrical Connector Shielding Shell Segmentation
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Solution Overview
Problem
Existing electrical connectors lack effective anti-EMI protection and mechanical separation between receiving spaces, as they do not form a complete circumferential or annular divider, which affects both electromagnetic interference prevention and structural retention.
Innovation Solution
The electrical connector features a shielding shell with a rear and front shell part, each having a seamless annular portion and flange, where the rear shell part accommodates the base of the insulative housing and the front shell part forms a mating cavity, with flanges that abut and are spot welded to create a divider for efficient EMI protection and mechanical separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a seamless shell is used for the shielding shell, then the manufacturing process is simplified, but the anti-EMI protection and mechanical separation are insufficient
Solution Approach 1:
The shielding shell is divided into a rear shell part and a front shell part, each with seamless annular portions that can be separately manufactured. These parts are then joined together to form a complete circumferential divider, achieving both ease of manufacture through separate production and reliable EMI protection through the complete annular structure.
2Device complexity
If a seamless shell is used for the shielding shell, then the structural complexity is reduced, but the mechanical separation between receiving spaces is inadequate
Solution Approach 1:
The shielding shell is segmented into rear and front parts that can be manufactured separately with simpler processes, then joined together. This segmentation allows each part to be produced with lower complexity while the assembled complete structure provides the necessary mechanical separation between receiving spaces.
Solution Approach 2:
The rear shell part and front shell part are joined together through welding or other connecting methods to form a unified complete annular divider. This merging of separate simple components creates the complex function of effective mechanical separation that neither part could achieve alone.
3Reliability
If a complete circumferential or annular divider is formed, then the anti-EMI protection is enhanced, but the manufacturing cost increases
Solution Approach 1:
The complete annular divider is segmented into rear and front shell parts that can be manufactured using cost-effective metal drawing processes separately, then joined together. This avoids the high cost of manufacturing a single-piece complete annular structure while maintaining the EMI protection benefits of the complete circumferential divider.
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 provides enhanced anti-EMI protection and mechanical separation, replacing expensive metal injection molding with a cost-effective metal drawing process, ensuring effective retention and protection against electromagnetic interference.
Implementation Method 1
flanges that abut and are spot welded to create a divider
Data Source
AI summary
An electrical connector includes: an insulative housing having a base and a tongue; an upper and lower rows of contacts mounted in the insulative housing and exposed to two opposite surfaces of the tongue; and a shielding shell enclosing the insulative housing, wherein the shielding shell has a rear shell part and a front shell part, and the rear shell part has a seamless annular portion accommodating the base.