Multi-Column Magnetic Component for Low-Loss High-Current Output
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Solution Overview
Problem
Existing magnetic components for low voltage and large current output are complex in structure and difficult to optimize, leading to increased size and loss.
Innovation Solution
A magnetic component with a specific core structure that includes multiple winding columns and side columns, arranged to form a closed magnetic flux loop, where the magnetic flux direction of the middle winding column is opposite to that of the other two winding columns, reducing size and loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple sub-transformers are designed discretely for low voltage and large current output, then the transmission power can be parallelized, but the structure becomes complicated and the magnetic core size and loss increase
Solution Approach 1:
The patent combines multiple sub-transformers into a single integrated magnetic component with a unified magnetic core. The core includes multiple winding columns (first, second, third winding columns) that can accommodate primary and secondary windings for multiple transformers. This merging approach maintains the parallel power transmission capability while eliminating the complexity of discrete designs and reducing overall magnetic core size and losses.
2Power
If multiple sub-transformers are designed discretely, then the transmission power can be parallelized, but the magnetic core size increases
Solution Approach 1:
The patent merges multiple sub-transformers into one integrated structure sharing a common magnetic core. The core includes first, second, and third winding columns that can be efficiently utilized. By sharing the magnetic core and flux paths among multiple transformers, the total magnetic core volume is reduced compared to having separate cores for each sub-transformer, while still supporting the required parallel power transmission.
3Power
If multiple sub-transformers are designed discretely, then the transmission power can be parallelized, but the magnetic core loss increases
Solution Approach 1:
The patent combines multiple sub-transformers into a single magnetic component, reducing the total magnetic core loss. By integrating the transformers and optimizing the magnetic flux paths through the shared core with multiple winding columns, the patent reduces redundant magnetic flux and associated losses that would occur in discrete designs. The unified magnetic circuit improves efficiency while maintaining parallel power transmission 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
The proposed magnetic component effectively reduces size and loss by integrating multiple inductors or transformers into a single magnetic component, optimizing the magnetic flux configuration.
Implementation Method 1
the first cover plate and the second cover plate are disposed respectively above and below the first winding column, the second winding column, the third winding column, the first side column and the second side column to form a closed magnetic flux loop; wherein a magnetic flux of the first winding column and a magnetic flux of the third winding column have a first direction, and a magnetic flux of the second winding column has a second direction opposite to the first direction
Data Source
AI summary
A magnetic component and a switch power supply device are disclosed. The magnetic component includes a magnetic core and at least three windings, the magnetic core including at least three winding columns, at least one side columns, a first cover plate and a second cover plate opposite to each other, wherein the at least three winding columns are sequentially arranged in adjacent, the first cover plate and the second cover plate are respectively at upper parts or lower parts of the at least three winding columns and the at least one side column to form a closed magnetic flux loop; the at least three windings are wound on the at least three winding columns, respectively; wherein magnetic flux direction of the middle winding column in adjacent three winding columns is opposite to magnetic fluxes direction of the other two winding columns in adjacent three winding columns.