Electrical Connector X-Like Contact Impedance Matching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical connectors are not suitable for high-speed and high-frequency transmission due to their structural limitations.
Innovation Solution
The electrical connector features an insulative housing with vertically extending passageways and contacts that include a main body with X-like fixing sections and resilient contacting arms with oblique and vertical sections, along with extension arms for impedance matching, allowing for effective mating with CPUs and PCBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional contacts with planar main bodies and simple retaining bars are used, then manufacturing is simple, but impedance matching for high frequency transmission cannot be achieved
Solution Approach 1:
The contact structure implements local quality by creating an X-like shape with fixing sections at specific locations on the main body, and adding extension arms with specific width relationships. The oblique section width is designed to be larger than the vertical section width but essentially the same as the distance between extension arms, creating localized geometric features that achieve impedance matching without requiring complete structural redesign
Solution Approach 2:
The invention transitions from a simple planar contact structure to a three-dimensional configuration by adding extension arms that protrude from the main body in a direction perpendicular to the vertical plane. This dimensional addition creates new geometric relationships (the distance between extension arms) that can be used to control impedance characteristics
2Reliability
If contacts with simple structures are used, then device complexity is low, but transmission performance for high speed applications is insufficient
Solution Approach 1:
The invention achieves improved transmission performance by carefully controlling geometric parameters of the contact structure. Specifically, the width of the oblique section is designed to be larger than the vertical section width but essentially the same as the distance between extension arms. This parameter relationship creates the necessary impedance characteristics for high-frequency transmission while maintaining a relatively compact structure
3Manufacturing precision
If conventional contact geometries are used, then manufacturing is easy, but impedance matching cannot be achieved for high frequency applications
Solution Approach 1:
The contact structure implements local quality by creating an X-like shape with fixing sections at specific locations on the main body, and adding extension arms with specific width relationships. The oblique section width is designed to be larger than the vertical section width but essentially the same as the distance between extension arms, creating localized geometric features that achieve impedance matching without requiring complete structural redesign
Solution Approach 2:
The invention transitions from a simple planar contact structure to a three-dimensional configuration by adding extension arms that protrude from the main body in a direction perpendicular to the vertical plane. This dimensional addition creates new geometric relationships (the distance between extension arms) that can be used to control impedance characteristics
Data Source
AI summary
A plurality of contacts are disposed within the corresponding passageways of the housing of the electrical connector, respectively. Each contact includes a main body extending in a vertical plane with two pairs of fixing sections on two opposite lateral sides to form an X-like shape, and a pair of resilient contacting arms extending from opposite upper and lower ends of the main body for mating with the CPU and PCB. A pair of extension arms extend from the waist section of the main body in a direction perpendicular to the vertical plane. The contacting arm includes a vertical section coplanar with the main body, an oblique section extending from an upper end of the vertical section with a bulged and narrowed contacting section at the free end. Each pair of fixing sections are located by two sides of the vertical section of the corresponding contacting arm.