Connector Shielding With Elastic Resin Spring Securing
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Solution Overview
Problem
Conventional connectors with a double shield structure struggle to secure the connector housing when mating with a plug-type connector featuring a flat insulating plate with parallel arrays of conductive terminals, as the inner shield case coverage interferes with the securing projections, compromising the shielding effect.
Innovation Solution
A connector design incorporating a body with insertion openings, contacts with terminal portions, and an inner shield cover with press-fractured engaging portions, utilizing resin springs that elastically open and restore to secure the connector member to the case, maintaining a high shielding effect without large openings or tabs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the inner shield case covers the outer walls of the connector housing to maintain shielding effect, then the shielding performance is improved, but the securing projections cannot fit into the grooves of the main housing, causing the connector housing to become unsecured
Solution Approach 1:
The inner shield case is divided into two functional parts: a cover portion that provides shielding and an engaging portion that provides securing function. This segmentation allows each part to fulfill its specific function independently, resolving the contradiction between shielding and securing.
Solution Approach 2:
The engaging portions are integrated into the inner shield case structure, merging the shielding function and securing function into a single component. This eliminates the need for separate securing mechanisms that would compromise shielding.
2Reliability
If large tabs are provided in the inner shield case to fit into the grooves for securing, then the securing reliability is improved, but the shielding effect is reduced
Solution Approach 1:
The inner shield case is segmented into a cover portion for shielding and an engaging portion for securing, allowing each to be optimized for its specific function without compromising the other.
Solution Approach 2:
Different parts of the inner shield case have different local qualities: the cover portion maintains continuous shielding structure, while the engaging portion has localized structural features for securing, each optimized for its specific function.
3Reliability
If large openings are made in the inner shield case to expose the securing projections, then the securing reliability is improved, but the shielding effect is compromised
Solution Approach 1:
The inner shield case is segmented into a cover portion that maintains shielding continuity and an engaging portion that provides securing function without requiring large openings, thus preserving shielding effectiveness.
Solution Approach 2:
The engaging portions extend in a direction perpendicular to the main shielding surface, allowing securing function to be achieved through a different spatial dimension without compromising the shielding structure in the primary plane.
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 connector is securely fastened while maintaining a high shielding effect, even with a plug-type connector having flat insulating plates, eliminating the need for large tabs or openings in the inner shield cover, and enhancing the overall shielding performance.
Implementation Method 1
resin springs are disposed inside the tube-shaped insulator and extend toward the back; and fixing stops are disposed at free ends of the resin springs, and their thickness increases inward from back to front. When the connector member is inserted into the case from the back of the case, the resin springs are opened out elastically; when the connector member is inserted until the fixing stops reach the engaging portions, the resin springs restore their original states, and the fixing stops engage with the engaging portions of the inner shield cover
Data Source
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AI summary
A connector is provided in which a connector member is secured to a case and a shielding effect can be maintained even if a mating plug-type connector to be engaged therewith has a flat insulating plate with connecting portions on both of its faces, forming mutually parallel arrays of pluralities of upper terminals and lower terminals, which are strips of conductive segments. The connector member and the case are included. The connector member includes an inner shield cover that includes engaging portions having press-fractured faces, formed in its rear end. The case has resin springs which are disposed inside the tube-shaped portion of the case and extend toward the back and fixing stops which are disposed at free ends of the resin springs and increase in thickness inward from back to front. When the connector member is inserted from the back of the case, the resin springs are elastically opened out, and when the connector member is inserted until the fixing stops reach the engaging portions, the resin springs restore their original states, and the fixing stops engage with the engaging portions of the inner shield cover.