Electrical Connector Ground Spring Selective Shielding
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Solution Overview
Problem
Conventional electrical connectors with grounding functions for high noise resistance often have complex structures that compromise shielding performance and size versatility, as they require multiple members for electromagnetic wave blocking and grounding, making it difficult to selectively enable or disable the grounding feature without affecting shielding.
Innovation Solution
An electrical connector design featuring a ground spring member that can be mounted or unmounted to provide grounding functionality, eliminating the need for cut-out spaces and additional shielding members, thus maintaining shielding performance while allowing for size reduction and manufacturing cost efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple members are provided for blocking electromagnetic waves and grounding, then shielding performance is maintained, but device complexity increases and size reduction becomes difficult
Solution Approach 1:
The patent combines the grounding function and electromagnetic wave blocking function into a single integrated ground spring member. This member simultaneously serves as a grounding element and as an electromagnetic shield, eliminating the need for separate shielding members and reducing overall structural complexity while maintaining shielding performance.
Solution Approach 2:
The ground spring member is designed to perform multiple functions: it provides grounding connectivity, blocks electromagnetic waves, and maintains mechanical stability. This multi-functional design allows a single component to replace what would traditionally require multiple separate components, thereby simplifying the overall structure.
2Reliability
If multiple members are provided for blocking electromagnetic waves and grounding, then shielding performance is maintained, but the size of the electrical connector increases
Solution Approach 1:
By merging the grounding function and electromagnetic wave blocking function into a single ground spring member, the patent reduces the total volume occupied by multiple separate components. The integrated design eliminates gaps and overlaps between separate members, allowing for a more compact overall connector size.
3Ease of operation
If cut-out spaces are formed in shield cases to create grounding contact pieces, then grounding function is achieved, but shielding performance decreases
Solution Approach 1:
Instead of creating cut-out spaces in the shield case, the patent extracts the grounding function to a separate ground spring member that attaches to the exterior surface of the shield case. This approach maintains the integrity and continuity of the shield case structure, preserving its electromagnetic wave blocking capability while still providing effective grounding.
4Reliability
If the grounding function is always included, then noise resistance is improved, but the connector cannot be easily adapted when high noise resistance is not required
Solution Approach 1:
The ground spring member is designed with elastic properties that allow it to be easily attached and detached. This dynamic characteristic enables the grounding function to be selectively activated or deactivated based on the application requirements, providing versatility while maintaining the capability for high noise resistance when needed.
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 design enables selective grounding without compromising shielding performance, resulting in a simplified structure, smaller size, and reduced manufacturing costs, while ensuring stable grounding even under vibration.
Implementation Method 1
a ground spring member configured to ground the shield member... enabling stable grounding even under vibration
Data Source
AI summary
A housing holds a contact. A shield member is held in the housing and blocks electromagnetic waves, and the contact is arranged inside the shield member. The housing is provided with a ground spring mount portion, which is a portion to which the ground spring member is to be mounted. The ground spring member electrically connects the shield member and an external grounding member when the ground spring member is mounted to the ground spring mount portion.