Shielded Multi-Core Cable Connector with Automatic Spring Contact
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Solution Overview
Problem
Existing cable connection devices struggle to simplify the connection of shielded multi-core cables, particularly in requiring special preparation of the shielding for reliable electrical contact, which increases installation complexity and costs.
Innovation Solution
A cable connection component with a two-part splicing part, comprising a cable-holder part and a wire-guiding part, featuring latching arms and inwardly bent inner spring arms for automatic shielding contact, and outwardly bent outer spring arms for multi-point connection to the metallic connecting body, eliminating the need for special shielding preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct soldering of shielding to plug sleeve is used, then reliable electrical connection is achieved, but installation cost and complexity increase
Solution Approach 1:
The patent introduces a shielding element as an intermediary component between the cable shielding and the metallic plug sleeve. This shielding element features spring arms that automatically contact the braided shielding when the cable is inserted, eliminating the need for direct soldering while ensuring reliable electrical connection. The intermediary component simplifies installation while maintaining connection reliability.
2Reliability
If shielding preparation steps are added, then electrical contact reliability improves, but installation time and cost increase
Solution Approach 1:
The shielding element is pre-configured with spring arms in a retracted position before cable insertion. When the cable is inserted, the spring arms automatically extend and contact the shielding without requiring any preparatory steps. This preliminary configuration eliminates installation time for shielding preparation while ensuring reliable contact.
Solution Approach 2:
The spring arms are designed to automatically extend and contact the cable shielding through the mechanical action of cable insertion itself. The system uses the insertion force to activate the shielding contact mechanism, requiring no additional manual operations. This self-service mechanism reduces installation time while maintaining contact reliability.
3Reliability
If complex shielding connection mechanisms are used, then electrical connection reliability improves, but ease of operation deteriorates
Solution Approach 1:
The shielding element acts as a mediator that simplifies the interaction between the installer and the cable shielding. Instead of requiring complex manual manipulation of the shielding, the spring arms automatically perform the contact function. This intermediary component maintains reliable electrical connection while dramatically improving ease of operation.
Solution Approach 2:
The shielding connection mechanism performs its own function automatically through the mechanical insertion process. The spring arms extend and contact the shielding without requiring manual activation or complex操作步骤. This self-service characteristic makes the installation process simple and intuitive while ensuring reliable shielding connection.
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
Facilitates a simple and reliable electrical connection of shielded cables by automatically contacting the shielding upon insertion, reducing installation complexity and costs, while ensuring high interference immunity and mechanical protection.
Implementation Method 1
multiple inner spring arms extending from the central section in the direction of the side facing the wire-guiding part, and multiple outer spring arms extending from the central section in the direction of the side facing away from the wire-guiding part. The inner spring arms are thereby bent inwardly in the direction of the longitudinal axis of the cable connection component such that their ends contact the shielding of a connected cable
Implementation Method 2
a union nut having an internal thread, comprising a splicing part made of insulating material and having a series of notches for separating the wires of the cable. When the union nut is screwed onto an electrically conductive connecting body provided with an external thread corresponding to the internal thread, the wire insulation of the wire ends inserted into the splicing part is separated from insulation displacement terminals arranged in the connecting body
Data Source
AI summary
A cable connection component for electrical connection of a shielded multi-core cable, having a union nut with an internal thread, a splicing part made of insulating material and having a plurality of notches for separating the wires of the cable, and a shielding element for contacting the shielding of the cable. The splicing part has a cable holder part and a wire guiding part. The cable holder part has a plurality of latching arms facing the wire guiding part, and the wire guiding part has an inwardly projecting latching catch corresponding to the latching arms facing the cable holder part. The shielding element has an annular central section, a plurality of inner spring arms extending from the central section toward the side facing the wire guiding part, and a plurality of outer spring arms extending from the central section toward the side remote form the wire guiding part.