Electrical Connector Yield Space Design for Pin Stability
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Solution Overview
Problem
The existing electrical connectors suffer from short-circuit issues due to lack of yield space between adjacent pins, leading to pin fatigue and unstable contact with the chip, as the flexible arms easily contact each other and the pins are prone to bending when pressed.
Innovation Solution
The electrical connector design incorporates a yield space between pins with a flexible arm structure featuring multiple bend portions and yield spaces, preventing contact between adjacent pins and reducing the slope of the flexible arm to minimize bending and fatigue, ensuring stable contact and extended usage life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connection portion extends upwards directly from the bend portion, then the structure is simplified, but the conducting pin is easily bent when pressed
Solution Approach 1:
The patent introduces a curved connection portion that extends upwards from the bend portion at an angled trajectory rather than a straight vertical line. This curved geometry distributes the pressing force more evenly along the pin structure, reducing stress concentration and preventing pin bending while maintaining structural simplicity.
2Device complexity
If the connection portion extends upwards directly from the bend portion, then the structure is simpler, but the press distance is larger causing pin fatigue
Solution Approach 1:
The curved connection portion reduces the effective press distance by creating an optimized force transmission path. The angled and curved geometry allows the pressing force to be applied more efficiently, reducing the total distance over which the flexible arm must deform during repeated pressing operations, thereby minimizing fatigue and extending pin service life.
Data Source
AI summary
An electrical connector includes an insulting main body having a plurality of receiving holes, and a plurality of pins located in the receiving holes. Each pin has a base portion, a welding portion and a flexible arm. The flexible arm has a first bend portion bent and extended upwards from the base portion, a second bend portion bended from the first bend portion, a first yield space above the second bend portion, a third bend portion bent slantedly and extended upwards from the second bend portion and a second yield space below the third bend portion. A contact portion is located at the end of the flexible arm. Due to the pin structure with the first yield space and the second yield space, the two flexible arms will not easily contact each other to prevent the short circuit problem or the interference problem from occurring.