Integral Shielding Connector for Power Cable Earthing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shielding connectors for power cables require additional braids or leads for earthing connections, which complicates installation and increases costs, while also lacking a robust and watertight sealing mechanism.
Innovation Solution
A shielding connector with a clamping element and integral strips that can be bent to form a close contact with the power cable, eliminating the need for separate braids or leads, and featuring a sealing portion for watertight sealing, along with a connection portion for earthing, all produced through cost-efficient stamping and bending of metallic sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate braids or leads are used for earthing connections, then electrical connection to shielding is achieved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines the clamping element and earthing strips into a single integral connector body made from one piece of conductive material. This eliminates the need for separate braids or leads, reducing structural complexity while maintaining reliable electrical connection to the cable shielding through the integrated clamping and conductive paths.
Solution Approach 2:
The shielding connector serves multiple functions simultaneously: it provides mechanical clamping onto the cable shielding, establishes electrical contact through the clamping element, and creates earthing connections through the integrated strips. This multi-functionality eliminates the need for separate components for each function.
2Reliability
If multiple separate components are used for shielding connection, then electrical connection is established, but ease of manufacture and cost efficiency deteriorate
Solution Approach 1:
The connector is manufactured as a single integral piece from one sheet of conductive material using stamping and bending processes. This eliminates the need to manufacture and assemble multiple separate components, significantly improving ease of manufacture and reducing production costs while maintaining reliable electrical connection.
Solution Approach 2:
The manufacturing process transforms a flat sheet of conductive material into a three-dimensional connector with specific geometric parameters through stamping and bending. This allows complex integral structures to be created from simple starting materials, improving manufacturability.
3Area of stationary object
If clamping element is bent around bending axis, then contact area with cable increases, but manufacturing precision requirements increase
Solution Approach 1:
The bend radius of the clamping element is specifically designed and adjusted to match the diameter of the power cable. This parameter matching ensures optimal contact area while the integral manufacturing process from a single sheet provides sufficient precision control for the bending operation.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A shielding connector (100, 200, 300) for contacting a shielding (273) of a power cable (270),the shielding connector (100, 200, 300) comprising a clamping element (110, 210, 310) and a plurality of strips (130, 230, 330) extending from the clamping element (110, 210, 310), wherein the clamping element (110, 210, 310) and the strips (130, 230, 330) are formed integrally.