Terminal Pinching Portions with Segmented Pressing Mechanism
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Solution Overview
Problem
Existing methods for connecting terminals to wires require significant facility investment and increase manufacturing costs due to the need for molds, and they face inefficiencies due to the high pressing force required to reduce contact resistance, making the operation less efficient.
Innovation Solution
A terminal design with a wire connecting portion featuring pinching portions and a sliding portion with pressing portions that are distributed to reduce contact area and allow easier movement, enabling the pinching portions to deform along the wire's shape with reduced pressing force, thus improving the efficiency of the connection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If molds are used to crimp the terminal to the wire core, then the connection reliability is improved, but the facility investment and manufacturing cost increase
Solution Approach 1:
The patent extracts the essential crimping function from complex mold equipment and implements it through a simple terminal structure with integrated pinching portions. The terminal itself becomes the crimping tool, eliminating the need for separate mold facilities while maintaining connection reliability.
Solution Approach 2:
The terminal structure performs the crimping operation on its own without requiring external mold equipment. The pinching portions of the terminal directly engage and crimp the wire core when the terminal is installed, making the system self-sufficient and eliminating facility investment.
2Reliability
If a slide with pressing portions is used to press the pinching portions toward the core, then the contact resistance is reduced, but the pressing force required makes it difficult to slide
Solution Approach 1:
The pressing portions are divided into multiple segments arranged side by side at intervals. This segmentation distributes the pressing force across multiple contact points, reducing the force required at each point and making the sliding operation easier while still achieving sufficient contact pressure to reduce contact resistance.
Solution Approach 2:
The pressing portions are arranged in a dimensional pattern (side by side at intervals) rather than a single linear arrangement. This spatial distribution transforms the pressing mechanism from a single-point high-force application to a multi-point distributed force application, reducing sliding resistance.
3Reliability
If the pinching portions are pressed with large force to reduce contact resistance, then the electrical connection is improved, but the efficiency of the connecting operation decreases
Solution Approach 1:
The pinching portions are segmented and distributed, allowing the crimping force to be applied across multiple points simultaneously. This distributes the total force requirement and enables easier application of sufficient pressing force to reduce contact resistance without compromising operation efficiency.
Solution Approach 2:
The patent changes the geometric parameters of the pinching portions and their arrangement to optimize the force distribution. By adjusting the shape, size, and spacing of the pinching portions, the system achieves sufficient electrical contact with reduced pressing force requirements, improving operation efficiency.
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 enhances the efficiency of the connecting operation by allowing smoother movement of the sliding portion and reducing the necessary pressing force, thereby improving the connection efficiency between the terminal and the wire.
Implementation Method 1
the pinching portion pressed by the pressing portions is deformed along the outer shape of the wire
Data Source
AI summary
A female terminal (12) to be connected to an end of a wire (11) is provided with a wire connecting portion (19) including a base (22) and first and second pinching portions (14, 15) extending along an extending direction from the base (22) and configured to pinch the wire (11), and a sliding portion (18) movable along the extending direction and including first pressing portions (16A, 16B) and second pressing portions (17A, 17B) for pressing the first and second pinching portions (14, 15) toward the wire (11) by coming into contact with the first and second pinching portions (14, 15). The first pressing portions (16A, 16B) and the second pressing portions (17A, 17B) project toward the first and second pinching portions (14, 15) and are side by side at an interval in a direction intersecting the extending direction.