Connector With Segmented Projection Accommodating Portion
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Solution Overview
Problem
Existing connectors face difficulties in smoothly connecting to flexible conductors with insufficient stretchability, leading to redundant portions and impaired electrical reliability due to inadequate contact pressure.
Innovation Solution
The connector design features a housing with recesses and a base member with projections that accommodate flexible substrates, incorporating elliptical protrusions and gaps within the projection accommodating portions to allow for deformation and receive redundant portions, ensuring reliable electrical contact regardless of stretchability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the projection 6 is made with a smaller diameter to prevent redundant portions from being caught, then the connection smoothness is improved, but the contact pressure of the flexible conductor becomes insufficient, impairing electrical connection reliability
Solution Approach 1:
The projection accommodating portion is segmented into multiple functional zones: an insertion portion with a larger diameter for smooth insertion of the projection and flexible substrate, and a contact portion with a smaller diameter for applying contact pressure to the flexible conductor. This segmentation allows the structure to simultaneously achieve smooth connection and reliable electrical contact.
Solution Approach 2:
Different portions of the projection accommodating portion are given different local qualities: the insertion portion has a larger diameter to facilitate smooth insertion, while the contact portion has a smaller diameter to ensure adequate contact pressure. This local differentiation resolves the contradiction between connection smoothness and electrical reliability.
2Adaptability or versatility
If the flexible substrate and flexible conductor have insufficient stretchability, then the connection process becomes difficult due to redundant portions being caught, but reducing the projection diameter to prevent this compromises contact pressure
Solution Approach 1:
The projection accommodating portion is divided into an insertion portion with larger diameter that accommodates redundant portions of inflexible flexible substrates and conductors during insertion, and a contact portion with smaller diameter that ensures adequate contact pressure for reliable electrical connection. This segmentation allows the connector to adapt to flexible conductors with insufficient stretchability while maintaining electrical reliability.
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
A connector (11, 11A) includes a pushing member (14, 51) having a projection (15, 41), and a contact (13, 31) having a projection accommodating portion (13D, 31D), the projection accommodating portion having a protruding portion (13E, 31E) that is situated in an inner surface of the projection accommodating portion with protruding from the inner surface of the projection accommodating portion toward an inside of the projection accommodating portion and approaches a lateral surface of the projection when the projection (15, 41) is inserted into the projection accommodating portion, and a gap forming portion (13F, 31F) that is situated in the inner surface of the projection accommodating portion around the protruding portion and forms a predetermined gap (G2) between the gap forming portion and the lateral surface of the projection when the projection is inserted into the projection accommodating portion, the predetermined gap being wider than a distance between the protruding portion and the lateral surface of the projection.