Segmented Thin-Wall Connection Terminal for Ultrasonic Bonding
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Solution Overview
Problem
Existing connection terminals with thin-walled portions for improved workability suffer from reduced strength, making them vulnerable to damage from ultrasonic bonding vibrations, and require costly joining materials and methods to enhance durability.
Innovation Solution
A connection terminal design featuring thin-walled portions strategically arranged along bending parts to enhance workability while increasing durability against ultrasonic bonding vibrations, allowing for cost-effective welding methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a thin-walled portion is provided continuously along the bending part to improve workability, then the bending workability is improved, but the strength of the bending part decreases making it vulnerable to ultrasonic bonding vibrations
Solution Approach 1:
The continuous thin-walled portion is divided into multiple discrete thin-walled portions arranged at intervals along the bending part. This segmentation maintains bending workability while the intervals between portions preserve sufficient strength to resist ultrasonic bonding vibrations.
Solution Approach 2:
The thin-walled portions are strategically positioned only at specific locations along the bending part where bending flexibility is most needed, rather than making the entire bending part thin-walled. This localized approach maintains strength in critical areas while improving workability where required.
2Strength
If the joining material and method of welding are changed to satisfy the strength requirement, then the strength for ultrasonic bonding is sufficient, but the cost becomes high
Solution Approach 1:
The box unit structure itself provides the necessary strength through its geometric configuration and the strategic arrangement of thin-walled portions, eliminating the need for additional expensive joining materials or complex welding methods to achieve sufficient strength.
Solution Approach 2:
The invention changes the structural parameters of the box unit (thickness distribution, arrangement of thin-walled portions) to achieve the required strength, rather than changing the material properties or joining methods which would increase cost.
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 terminal achieves improved workability and durability against ultrasonic bonding, reducing the risk of breakage and enabling cost-effective bonding processes.
Implementation Method 1
an electric wire connection part to which an electric wire is electrically connected by ultrasonic bonding
Data Source
AI summary
A connection terminal includes an electric wire connection part to which an electric wire is electrically connected by ultrasonic bonding, and an electric connection part integrated with the electric wire connection part and electrically connected to a mating terminal. The electric connection part includes a box unit which is formed in a cylindrical shape by bending a plurality of bending parts and into which the mating terminal is capable of being inserted, and a thin-walled portion having a thickness less than other parts of the box unit is provided and a plurality of thin-walled portions is arranged on at least one of the bending parts along the bending part.