Electric Connector Contact Layout for Short Current Paths and Reliability
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Solution Overview
Problem
Reducing the current path length of a contact in an electric connector leads to hardening, which degrades connection reliability.
Innovation Solution
Incorporating a housing with contacts that have a fixed part, a soldering part, and an elastic deformation part acting as a cantilever, allowing for a shorter current path length without degrading connection reliability by using an elastic deformation mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the current path length of a contact is reduced, then the resistance value in the current path is smaller, but the contact hardens which degrades the connection reliability
Solution Approach 1:
The contact is divided into multiple segments: a fixed part, an elastic deformation part (cantilever), and a soldering part. This segmentation allows the current path to be shortened through the elastic deformation part while the fixed part maintains connection reliability. The elastic deformation part acts as a separate functional element that provides both electrical conduction and mechanical flexibility.
Solution Approach 2:
The contact incorporates an elastic deformation part that can dynamically adjust its shape through elastic deformation. When the first contact part comes into contact with the first conductor, the elastic deformation part elastically deforms, allowing the second contact part to come into contact with the third conductor. This dynamic capability enables the contact to maintain reliability while achieving a shorter current path.
2Reliability
If the current path length of a contact is reduced, then the resistance value in the current path is smaller, but the contact hardens which degrades the connection reliability
Solution Approach 1:
The contact is divided into multiple segments: a fixed part, an elastic deformation part (cantilever), and a soldering part. This segmentation allows the current path to be shortened through the elastic deformation part while the fixed part maintains connection reliability. The elastic deformation part acts as a separate functional element that provides both electrical conduction and mechanical flexibility.
Solution Approach 2:
The contact incorporates an elastic deformation part that can dynamically adjust its shape through elastic deformation. When the first contact part comes into contact with the first conductor, the elastic deformation part elastically deforms, allowing the second contact part to come into contact with the third conductor. This dynamic capability enables the contact to maintain reliability while achieving a shorter current path.
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 solution maintains connection reliability while reducing current path length, achieving high-frequency transmission characteristics and compatibility between high-frequency transmission and connection reliability.
Implementation Method 1
an elastic deformation part which is a cantilever extending from the fixed part 80. The elastic deformation part 82 includes a first contact part 85 configured to come into contact with a corresponding first conductor 10; and a second contact part 87 configured to come into contact with a third conductor 16 provided on the board 4
Data Source
AI summary
When an upper contact part is not in contact with a signal pad, a lower contact part is not in contact with a short-circuiting pad, and when the upper contact part comes into contact with the signal pad and an elastic deformation part is elastically deformed, the lower contact part comes into contact with the short-circuiting pad. The current path length from the upper contact part to the lower contact part is shorter than the current path length from the upper contact part to a soldering part.