Electrical Connector Shielding Securement
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Solution Overview
Problem
Existing electrical connectors face difficulties in securely fixing shielding/grounding blades and grounding bars to the outer shell, affecting both mechanical strength and electrical performance.
Innovation Solution
The design includes a metallic shielding/grounding blade with transverse securing legs and grounding bars with vertically extending securing legs, which are soldered or welded to the interior surfaces of the outer shell, enhancing both mechanical strength and electrical shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional securing pads are used to fix shielding/grounding blade and grounding bar to outer shell, then the structure is simple, but the mechanical strength and reliability of the connection is insufficient
Solution Approach 1:
The patent combines multiple securing functions into integrated securing structures. The shielding/grounding blade includes securing tabs that extend laterally to engage with the outer shell, while the grounding bar includes securing lugs that also engage with the outer shell. This merging of securing functions into the blade and bar structures themselves eliminates the need for separate securing pads, thereby improving mechanical strength without significantly increasing overall device complexity.
2Reliability
If traditional securing pads are used to fix shielding/grounding blade and grounding bar to outer shell, then manufacturing is easier, but the electrical performance and shielding effectiveness is compromised
Solution Approach 1:
The securing tabs and securing lugs are pre-formed as integral parts of the shielding/grounding blade and grounding bar during their respective manufacturing processes. This preliminary action ensures that the securing structures are already in place and properly positioned before assembly, improving electrical performance through reliable connections while maintaining ease of manufacture by eliminating the need for additional securing pad components.
3Reliability
If securing pads are added to improve fixation, then mechanical strength improves, but the number of components and assembly complexity increases
Solution Approach 1:
The patent merges the securing function directly into the shielding/grounding blade and grounding bar by incorporating securing tabs and securing lugs as integral features. This eliminates the need for separate securing pads, thereby improving fixation reliability while reducing the total number of components and simplifying the overall device structure.
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 securement method improves the mechanical strength and electrical shielding performance of the connector, ensuring reliable and easy fixation of the shielding/grounding components to the outer shell.
Implementation Method 1
Both the securing legs of the shielding/grounding blade and those of the grounding bars are secured to interior surfaces of the two side walls of the outer shell
Implementation Method 2
Both the securing legs of the shielding/grounding blade and those of the grounding bars are secured to interior surfaces of the two side walls of the outer shell
Data Source
AI summary
The connector includes an insulative housing, two rows of contacts retained in the housing, and a metallic shell enclosing the housing. The contact includes a contacting section extending into the mating cavity, and a connecting section exposed outside of the housing. An insulative block/spacer is attached to a back side of the housing integrally with a metallic shielding/grounding blade therein. The shielding/grounding blade includes a pair of securing legs at two ends in the transverse direction. A pair of grounding bars are soldered to the outer conductors of the two rows of wires, respectively. Each of the grounding bars includes a pair of securing legs at two ends in the transverse direction. Both the securing legs of the shielding/grounding blade and those of the grounding bars are secured to interior surfaces of the two side walls of the outer shell.