Shielded Cable Connector With External Grounding Confirmation
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Solution Overview
Problem
Conventional electromagnetic shield connectors have a complex multi-layer structure, making them larger and difficult to confirm if the shield shell is reliably grounded.
Innovation Solution
An electromagnetic shield connector with a simplified structure featuring a conductive metal outer housing that accommodates an insulating inner housing and a shield sleeve, allowing for easy external grounding confirmation and size reduction, while maintaining electromagnetic shielding effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a multi-layer structure with shield shell and outer housing is used, then electromagnetic shielding function is achieved, but device complexity and size increase
Solution Approach 1:
The patent merges the shield shell and outer housing into a single integrated outer housing structure. The outer housing directly accommodates the terminal-equipped shielded cable and provides both mechanical protection and electromagnetic shielding, eliminating the need for a separate shield shell layer. This integration maintains the electromagnetic shielding function while significantly simplifying the overall configuration.
Solution Approach 2:
The outer housing is designed to perform multiple functions simultaneously: it serves as the structural enclosure, provides electromagnetic shielding, and incorporates the grounding portion for electrical connection. By making the outer housing multi-functional, the patent eliminates the need for separate dedicated shield components, thereby reducing configuration complexity while maintaining shielding effectiveness.
2Object-affected harmful factors
If a multi-layer structure with shield shell and outer housing is used, then electromagnetic shielding function is achieved, but the connector size increases
Solution Approach 1:
The patent merges the shield shell and outer housing into a single integrated outer housing structure. The outer housing directly accommodates the terminal-equipped shielded cable and provides both mechanical protection and electromagnetic shielding, eliminating the need for a separate shield shell layer. This integration maintains the electromagnetic shielding function while significantly simplifying the overall configuration.
Solution Approach 2:
The outer housing is designed to perform multiple functions simultaneously: it serves as the structural enclosure, provides electromagnetic shielding, and incorporates the grounding portion for electrical connection. By making the outer housing multi-functional, the patent eliminates the need for separate dedicated shield components, thereby reducing configuration complexity while maintaining shielding effectiveness.
3Object-affected harmful factors
If a conventional multi-layer structure is used, then electromagnetic shielding is provided, but grounding confirmation from outside becomes difficult
Solution Approach 1:
The patent extracts the grounding verification function from the internal multi-layer structure and places it on the external surface of the outer housing. The grounding portion is specifically designed to be accessible from outside, allowing direct visual or physical confirmation of grounding connection without disassembling or penetrating the housing structure.
Solution Approach 2:
The grounding portion serves as an intermediary element that bridges the internal shielding structure and the external environment. It provides a visible and accessible interface that mediates between the internal grounding connections and external verification, allowing users to confirm grounding status without direct access to internal components.
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 compact, easily verifiable grounding system for shielded cables, enhancing assemblability and electromagnetic wave suppression without the need for a shield shell, ensuring reliable insulation and effective noise reduction.
Implementation Method 1
an outer housing made of conductive metal, including a second terminal fitting opening and a second wire insertion opening, configured to accommodate the inner housing and to be connected to the shield sleeve
Data Source
AI summary
An electromagnetic shield connector is provided with a terminal-equipped shielded cable formed by mounting a terminal on an end of a shielded cable, an insulating inner housing including a first terminal fitting opening and a first wire insertion opening and configured to accommodate the terminal of the terminal-equipped shielded cable, a shield sleeve to be connected to a shield member of the shielded cable on the shielded cable and to be externally mounted on the shielded cable further on the side of the shielded cable than the terminal, an outer housing made of conductive metal, including a second terminal fitting opening and a second wire insertion opening, configured to accommodate the inner housing and to be connected to the shield sleeve, and a grounding portion provided on the outer housing and connectable to an external grounding member.