Cantilever Contact Structure With Shorter Current Path
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Solution Overview
Problem
The existing contact design with a resilient deformation portion as a cantilever spring is prone to plastic deformation and deterioration of spring characteristics due to its structure, leading to potential damage when resiliently deformed.
Innovation Solution
A contact design with a cantilever-shaped resilient deformation portion that includes a first contact portion, a second contact portion, and a third contact portion, where the second and third contact portions are brought into contact in a lateral direction upon deformation, thereby shortening the current path and preventing excessive deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the resilient deformation portion is formed as a cantilever to act as a soft spring, then the spring characteristics are improved, but the current path length increases and the structure becomes prone to plastic deformation
Solution Approach 1:
The resilient deformation portion is divided into multiple segments: a first resilient deformation portion and a second resilient deformation portion. This segmentation allows each portion to have optimized length and deformation characteristics, reducing the total current path length while maintaining spring functionality. The first portion provides initial resilience and the second portion provides additional deformation capacity, together achieving both short current path and good spring characteristics.
Solution Approach 2:
The invention introduces lateral deformation capability in addition to vertical deformation. The second resilient deformation portion is configured to deform laterally when the first portion deforms vertically. This multi-dimensional deformation approach reduces the vertical current path length while distributing mechanical stress across different deformation modes, improving reliability and reducing plastic deformation risk.
2Reliability
If the resilient deformation portion is formed as a cantilever to act as a soft spring, then the spring characteristics are improved, but the structure is prone to plastic deformation and damage
Solution Approach 1:
The resilient deformation portion is divided into multiple segments: a first resilient deformation portion and a second resilient deformation portion. This segmentation allows each portion to have optimized length and deformation characteristics, reducing the total current path length while maintaining spring functionality. The first portion provides initial resilience and the second portion provides additional deformation capacity, together achieving both short current path and good spring characteristics.
Solution Approach 2:
The invention introduces lateral deformation capability in addition to vertical deformation. The second resilient deformation portion is configured to deform laterally when the first portion deforms vertically. This multi-dimensional deformation approach reduces the vertical current path length while distributing mechanical stress across different deformation modes, improving reliability and reducing plastic deformation risk.
3Length of stationary object
If the second contact portion is brought into contact with the third contact portion to shorten the current path, then the current path length is reduced, but the resilient deformation portion acts as a both ends supported spring and its spring characteristics deteriorate
Solution Approach 1:
The resilient deformation portion is divided into multiple segments: a first resilient deformation portion and a second resilient deformation portion. This segmentation allows each portion to have optimized length and deformation characteristics, reducing the total current path length while maintaining spring functionality. The first portion provides initial resilience and the second portion provides additional deformation capacity, together achieving both short current path and good spring characteristics.
Solution Approach 2:
The invention introduces lateral deformation capability in addition to vertical deformation. The second resilient deformation portion is configured to deform laterally when the first portion deforms vertically. This multi-dimensional deformation approach reduces the vertical current path length while distributing mechanical stress across different deformation modes, improving reliability and reducing plastic deformation risk.
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 design suppresses deterioration of spring characteristics and reduces the length of the current path, enhancing the resilience and durability of the contact.
Implementation Method 1
the resilient deformation portion 14 is formed as a cantilever and acts as a soft spring
Data Source
AI summary
A contact has a mounting portion, a resilient deformation portion with a cantilever shape and an expansion portion. The resilient deformation portion is provided with a first contact portion and a second contact portion located between the first contact portion and the mounting portion. The expansion portion is provided with a third contact portion. Resilient deformation of the resilient deformation portion allows the second contact portion to be brought into contact with the third contact portion. In a state where the second contact portion is brought into contact with the third contact portion, a first current path from the first contact portion to the mounting portion via the resilient deformation portion is shorter than a second current path from the first contact portion to the mounting portion via the third contact portion.