Coil Terminal Layout That Preserves Second Core Volume
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coil devices with a connecting portion in the second core compromise the volume of the second core, leading to unsatisfactory inductance characteristics, particularly when size reduction or current increase is required.
Innovation Solution
A coil device design where the terminal is disposed on the upper surface of a base portion, allowing the second core to cover both the coil and terminal, eliminating the need for a connecting portion within the second core, thus ensuring sufficient volume and enhancing inductance characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the connecting portion is disposed in the second core, then the terminal can be firmly fixed to the second core, but the volume of the second core decreases and satisfactory inductance characteristics cannot be ensured
Solution Approach 1:
The terminal is repositioned from being fixed within the second core to being disposed on the upper surface of the base portion, utilizing the vertical dimension and external surface space. This dimensional relocation allows the second core to maintain its full volume for magnetic flux while the terminal achieves firm fixing through contact with both the base portion and second core from different spatial perspectives.
2Volume of moving object
If the coil device is reduced in size, then miniaturization is achieved, but inductance characteristics deteriorate without sufficient second core volume
Solution Approach 1:
By relocating the terminal to the upper surface of the base portion, the design optimizes spatial utilization in the vertical dimension. This allows the second core to maintain adequate volume relative to the coil for satisfactory inductance characteristics, while the overall device footprint is reduced through efficient arrangement of components in three-dimensional space.
3Power
If the current is increased, then higher power handling is achieved, but inductance characteristics deteriorate without sufficient second core volume
Solution Approach 1:
The terminal repositioning enables the second core to maintain sufficient volume for handling increased currents while preserving satisfactory inductance characteristics. The terminal achieves firm fixing through its position on the base portion upper surface, allowing the second core to be optimized for magnetic performance without compromising current handling capability.
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
This design allows for improved inductance characteristics, particularly noticeable in size-reduced or high-current applications, while protecting the connecting wire and preventing positional deviations, thereby enhancing the coil device's stability and mounting strength.
Implementation Method 1
a coil; a first core having a columnar portion and a base portion, a coil being disposed around the columnar portion
Implementation Method 2
a first core where the coil is wound around a columnar portion, and a second core covering a part of the terminal together with the coil
Data Source
AI summary
An inductor includes: a coil; terminals connected to end portions of the coil; a first core having a columnar portion where the coil is disposed and a base portion having an upper surface where the columnar portion is formed; and a second core covering the upper surface of the base portion together with the coil. The terminals are disposed on the upper surface of the base portion.