Insulation Displacement Contact With Staged Flex for Wide Wire Sizes
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Solution Overview
Problem
Current IDC technology is limited in the range of wire diameters it can securely terminate and is susceptible to deformation fatigue due to blade weakening with repeated use.
Innovation Solution
The IDC design incorporates two or more distinct flex regions with mechanical stops to sequence deformation, allowing it to securely terminate a wide range of conductor diameters while preventing deformation fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IDC blades are made more elastic to accommodate a wider range of wire diameters, then adaptability improves, but blade strength and reliability deteriorate due to increased deformation stress
Solution Approach 1:
The blade is divided into multiple distinct flex regions (first flex region, second flex region, etc.) that sequentially absorb deformation stress. Each flex region has controlled elasticity to handle specific deformation stages, allowing the blade to accommodate various wire diameters without compromising overall structural integrity.
Solution Approach 2:
Different portions of the blade have different mechanical properties - the flex regions are designed with specific elastic characteristics to accommodate deformation, while other portions maintain higher strength. This localized differentiation allows the blade to be both adaptable and reliable.
2Adaptability or versatility
If IDC blades are designed to accommodate larger wire diameters, then adaptability improves, but deformation fatigue increases with repeated use
Solution Approach 1:
The blade structure is segmented into multiple flex regions that sequentially engage during deformation. This segmentation distributes the cumulative deformation stress across multiple regions, preventing any single region from experiencing excessive fatigue and extending the overall service life of the IDC.
Solution Approach 2:
The flex regions are pre-designed with controlled elastic properties to absorb deformation stress before it reaches critical levels. This beforehand cushioning prevents deformation fatigue by dissipating stress energy in predetermined regions, thereby extending the duration of action.
3Reliability
If mechanical stops are added to limit deformation in flex regions, then blade reliability improves, but device complexity increases
Solution Approach 1:
The mechanical stop feature is merged directly into the blade structure itself, forming an integrated design. The stop is formed as part of the blade geometry rather than being a separate component, which maintains reliability through deformation control while minimizing additional structural complexity.
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 accommodates a wide range of wire diameters, ensuring reliable electrical connections and minimizing deformation stress on the blades, even with repeated terminations.
Implementation Method 1
the mechanical stress or deformation absorbed by the blades is sequenced through the flex regions in a staged manner
Data Source
AI summary
An insulation displacement contact (IDC) is capable of securely terminating wires having a wide range of diameters. The IDC is also designed to withstand repeated terminations of wires having diameters at the large end of the supported size range while remaining capable of securely terminating wires having diameters at the small end of the range. To these ends, the IDC comprises two or more distinct flex regions. At least one of the flex regions has an associated mechanical stop that limits the degree of deformation that can be applied to that region as a wire is being terminated on the IDC. If the diameter of the wire being terminated on the IDC is large enough to deflect the first flex region to the end of its deflection range, the mechanical stop is engaged, causing further deflection to be transferred to the next flex region.