Multi-part Shielding Element for Vibration-Resistant Cable Connections
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Solution Overview
Problem
Existing cable and device connections for electrically connecting cables with shields lack reliable and durable contact methods, especially under mechanical and thermal loads, and are prone to vibration-induced stress.
Innovation Solution
A multi-part shielding element with a sleeve-shaped section that encloses the cable insulation and shield, featuring elastically deformable parts with contact means for secure engagement with the housing, ensuring reliable and vibration-resistant electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-part shielding element is used to connect the cable shield to the housing, then the device complexity is reduced, but the reliability of electrical contact under mechanical and thermal loads deteriorates
Solution Approach 1:
The shielding element is divided into multiple parts: a first part with contact means for the housing, a second part for cable shield contact, and intermediate sections. This segmentation allows each part to be optimized for its specific function, ensuring reliable electrical contact under mechanical and thermal loads while maintaining manageable device complexity.
2Reliability
If the shielding element is made rigid to ensure stable electrical contact, then the contact reliability improves, but the ability to withstand vibration and mechanical loads deteriorates
Solution Approach 1:
The shielding element incorporates elastic deformability in specific sections, allowing the element to dynamically adapt to vibrations and mechanical loads. The elastic sections can deform to absorb vibrational energy while maintaining electrical contact, resolving the contradiction between rigidity for stability and flexibility for vibration resistance.
3Power
If the contact means are made with large contact surface area to increase current-carrying capacity, then the power handling improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The contact means are designed with locally optimized properties: specific regions have enhanced contact surface area for current conduction, while other regions maintain simpler geometries for ease of manufacturing. This local quality differentiation allows high current-carrying capacity in critical areas without unnecessarily increasing overall device complexity.
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 provides a permanently secure and vibration-resistant electrical connection capable of withstanding mechanical and thermal loads, ensuring high contact reliability and current-carrying capacity.
Implementation Method 1
the first part of the umbrella element is essentially sleeve-shaped and elastically deformable in the circumferential direction
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A device (11) for electrically connecting a cable, in particular a plug-in connector part (2), has a housing (148) in which a shielding element (159) is arranged for electrically contacting a cable shield (157) and for electrically connecting the cable shield (157) to the housing (148). The shielding element (159) is multipart. A first part (131) of the shielding element (159) is in electrically connecting abutment against the housing (148), and can be electroconductively connected to the cable shield (157) by at least one further part (135, 137) of the shielding element (159).