Angled Electrical Connector Contact Impedance Control
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Solution Overview
Problem
Existing electrical contacts with CPU connectors experience unwanted deviations from the regulated impedance due to the positions and dimensions of the contacting and tail sections, leading to suboptimal performance.
Innovation Solution
The design features an electrical connector with an insulative housing and angled contact bodies, where a resilient contacting section extends upwardly from one body and a soldering tail extends from the other, with a slit between two blades to adjust impedance, and a widened contacting section to minimize deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the positions and dimensions of the contacting section and tail section are adjusted to improve retention force, then the retention force is enhanced, but the impedance deviation increases
Solution Approach 1:
The contact is divided into functionally independent segments: the contacting section for electrical connection, the tail section for retention, and the connecting section linking them. This segmentation allows each part to be optimized independently - the contacting section dimensions can be tuned for impedance control while the tail section provides retention force, resolving the contradiction between these two requirements.
Solution Approach 2:
Different sections of the contact have different structural characteristics optimized for their specific functions. The contacting section has specific width and thickness for impedance control, the connecting section has intermediate dimensions for mechanical linkage, and the tail section has dimensions optimized for retention. This local differentiation allows simultaneous optimization of retention force and impedance control without mutual interference.
2Manufacturing precision
If the contacting section dimensions are modified to control impedance, then the impedance regulation is improved, but the structural stability deteriorates
Solution Approach 1:
The connecting section provides mechanical flexibility and stress distribution, allowing the contacting section to have precise dimensions for impedance control without compromising overall structural stability. The gradual transition in the connecting section absorbs mechanical stresses, maintaining stability while enabling precise impedance regulation in the contacting section.
Solution Approach 2:
The contact utilizes a composite structural design where the contacting section, connecting section, and tail section form a composite system with different dimensional characteristics. This composite structure allows the contacting section to be optimized for impedance while the connecting and tail sections provide structural support and stability, resolving the contradiction between impedance precision and structural stability.
Data Source
AI summary
A plurality of contact are received within the corresponding passageways of the insulative housing of an electrical connector, respectively. Each contact has juxtaposed first body and second body angled with each other via a connecting section linked therebetween. A resilient contacting section extends upwardly from the first body. The bottom portion of the second body forms sideward spaced first blade and second blade with a slit therebetween, wherein a soldering tail further extends from the first blade, and the second blade is sideward farther from the first body than the first blade is. The bottom edge of the first body is lower than the bottom edge of the connecting sections o as to form another slit between the first body and the second body under the connection section.