Magnetic Separation in Dual-Core Coil Components
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing coil components with integrated primary and secondary windings face difficulties in adjusting the coupling coefficient due to the presence of a common magnetic path, making it challenging to achieve the desired coupling coefficient between the two coils.
Innovation Solution
A coil component design where the first and second cores are arranged magnetically separated from each other, allowing a part of the first coil to be wound on the second core, enabling adjustment of the coupling coefficient by varying the winding ratio without considering the influence of a common magnetic path, and utilizing a nonmagnetic coupling member for separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the core portions with primary and secondary windings are integrated in a single core, then the structural complexity is reduced, but the adjustment of coupling coefficient becomes difficult due to the common magnetic path
Solution Approach 1:
The patent divides the integrated core into separate first and second cores. The primary winding is wound on the first core, and the secondary winding is wound on the second core. This segmentation eliminates the common magnetic path between the two windings, allowing independent control and easy adjustment of the coupling coefficient without increasing overall structural complexity.
2Ease of operation
If separate cores are used for primary and secondary windings to eliminate common magnetic path, then the adjustment of coupling coefficient becomes easy, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into the separate core structure: the first and second cores not only provide magnetic paths for their respective windings but also work together to establish the coupling coefficient. The cores are positioned and coupled in a way that integrates the magnetic separation function with the coupling adjustment function, reducing the need for additional components.
3Reliability
If a nonmagnetic coupling member is used to couple the first and second cores, then the magnetic separation is achieved, but the number of parts increases
Solution Approach 1:
The nonmagnetic coupling member serves multiple functions simultaneously: it mechanically couples the first and second cores together, maintains their relative positions, and provides magnetic separation by preventing magnetic flux coupling between the cores. This multi-functionality reduces the need for additional separate components for positioning and alignment.
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
Facilitates easy adjustment of the coupling coefficient between the coils, eliminating the need to account for common magnetic paths and allowing for precise attainment of the desired coupling coefficient, while minimizing the number of parts and enabling efficient mass production.
Implementation Method 1
a part of the first coil wound on the winding core portion of the first core is also wound on the winding core portion of the second core, whereby the first coil and the second coil are magnetically coupled to each other
Implementation Method 2
the first core and the second core are arranged as magnetically separated from each other
Data Source
AI summary
A coil component has a first core with a winding core portion, a second core with a winding core portion, a first coil wound on the winding core portion of the first core, and a second coil wound on the winding core portion of the second core. A part of the first coil is wound on the winding core portion of the second core. The first core and the second core are arranged as magnetically separated from each other.