Electric Connector Shielding Sheet Nested Structure
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Solution Overview
Problem
Existing electric connectors face challenges in maintaining stable electromagnetic compatibility during high-speed signal transmission due to gaps or slots in iron shells, which cause signal interference.
Innovation Solution
An electric connector structure featuring an insulative body, conductive terminals, a shielding sheet, and a shielding shell with a double-layer engaging portion and guiding slant for secure engagement, and an outer shielding casing to prevent signal interference and enhance electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional iron shells with gaps or slots are used for connectors, then the structure is simple and easy to manufacture, but signal interference occurs and electromagnetic compatibility deteriorates during high-speed transmission
Solution Approach 1:
The patent implements a multi-layer nested shielding structure where an inner shielding sheet is embedded within the insulative body containing terminals, and an outer shielding shell envelops the entire connector assembly. This nested configuration creates comprehensive electromagnetic shielding without requiring complex integrated designs, effectively blocking signal interference while maintaining manufacturing simplicity.
Solution Approach 2:
The shielding structure is divided into separate functional components: an inner shielding sheet positioned between terminal rows to prevent crosstalk, and an outer shielding shell providing overall protection. This segmentation allows each component to be optimized independently and assembled systematically, reducing overall complexity while achieving superior electromagnetic compatibility.
2Reliability
If shielding structures are designed to eliminate gaps and holes for electromagnetic compatibility, then signal interference is reduced, but the design complexity and manufacturing difficulty increase
Solution Approach 1:
The inner shielding sheet is pre-embedded within the insulative body during mold assembly, establishing continuous shielding coverage before final connector assembly. The extending sections with engaging portions are pre-formed on the shielding sheet, enabling straightforward integration with the outer shielding shell without requiring complex post-assembly operations.
Solution Approach 2:
The engaging portions on the shielding sheet's extending sections automatically engage with corresponding engaging troughs on the outer shielding shell during assembly. This self-engaging mechanism ensures proper positioning and continuous shielding coverage without requiring additional fastening operations or complex alignment procedures, simplifying manufacturing while maintaining reliability.
3Manufacturing precision
If engaging structures are designed with multiple features (double-layer engaging portion, guiding slant, protrusions, recess) for precise assembly, then assembly accuracy improves, but the structure becomes more complex
Solution Approach 1:
The engaging structure employs asymmetric features including a guiding slant on the outer shielding shell that corresponds to the orientation of extending sections, and positioned protrusions that engage with specific locations on the engaging portions. This asymmetric design provides automatic orientation and precise positioning during assembly, ensuring accurate alignment while maintaining relatively simple structural forms.
Solution Approach 2:
The guiding slant introduces a curved or inclined surface feature that guides the engaging portions into proper alignment during assembly. This curved guiding feature simplifies the positioning process compared to rigid right-angle constraints, allowing smooth insertion while ensuring precise final positioning of the shielding components.
Data Source
AI summary
An electric connector includes an insulative body, multiple conductive terminals, a shielding sheet, and a shielding shell. The insulative body includes a base and a tongue. The conductive terminals include an upper row of terminals and a lower row of terminals, which are disposed on an upper side and a lower side of the tongue, respectively. The shielding sheet is embedded in the insulative body and located between the upper row of terminals and the lower row of terminals. Two sides of the shielding sheet are extended with an extending section respectively. A distal end of each extending section is folded back to form an engaging portion. The shielding shell is adapted to sheathes the insulative body. Two sides of the shielding shell are respectively provided with an engaging trough engaged with one of the engaging portions to make the shielding shell contact with the shielding sheet.