Plug Connector Shielding Bead for Consistent Contact Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plug connector systems with shielding housings suffer from adverse electrical properties, particularly high-frequency issues, due to a protruding spur line formed by the shielding sleeve, which varies with plug-in depth.
Innovation Solution
A plug connector system featuring a shielding sleeve with a partially circumferential bead that contacts spring elements in the shielding bushing, maintaining a consistent contact force independent of plug-in depth, thereby eliminating the spur line and improving electrical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the shielding sleeve is pushed into the shielding bushing without a bead, then the assembly is simple, but a protruding spur line forms that causes disadvantageous electrical properties
Solution Approach 1:
A bead is added locally to the shielding sleeve at the contact region, creating a localized structural feature that eliminates the harmful spur line effect while maintaining the overall simplicity of the shielding structure. The bead is positioned specifically where it contacts the spring elements to ensure proper electrical connection without forming internal protrusions.
2Ease of manufacture
If the shielding sleeve protrudes beyond the contact region, then the assembly is easier to manufacture, but a spur line forms that varies with plug-in depth causing inconsistent electrical properties
Solution Approach 1:
The spring elements provide a dynamic, resilient contact mechanism that compensates for variations in plug-in depth. The bead on the shielding sleeve works with the spring elements to maintain consistent electrical contact regardless of manufacturing tolerances or assembly variations, ensuring reliable electrical properties without requiring extremely precise manufacturing.
3Reliability
If contact beads are arranged at the tips of spring elements, then electrical contact is achieved, but a spur line forms in the interior of the shield that degrades high-frequency properties
Solution Approach 1:
The harmful spur line effect is eliminated by repositioning the contact feature to the exterior of the shielding sleeve rather than having it protrude into the shield interior. The bead is placed on the outer surface of the shielding sleeve, where it contacts the spring elements from the outside, thereby removing the source of high-frequency signal degradation while maintaining electrical contact functionality.
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 solution ensures reliable and consistent electrical connectivity, enhancing high-frequency signal transmission by maintaining a constant contact force and eliminating depth-dependent electrical issues, thus improving the overall electrical properties of the connector system.
Implementation Method 1
The shielding sleeve has an at least partially circumferential bead on an outer side of the shielding sleeve. The shielding sleeve is partially received in the shielding bushing and the at least partially circumferential bead contacts the spring elements when the first plug connector is connected to the second plug connector.
Data Source
AI summary
A plug connector system includes a first plug connector having a shielding sleeve and a second plug connector having a shielding bushing with a plurality of spring elements. The shielding sleeve has an at least partially circumferential bead on an outer side of the shielding sleeve. The shielding sleeve is partially received in the shielding bushing and the at least partially circumferential bead contacts the spring elements when the first plug connector is connected to the second plug connector.