Magnetic Assembly Heat Dissipation via Segmented Core
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of multiple magnetic elements in a planar structure leads to poor heat dissipation, affecting the service life and safety of magnetic assemblies used in switching power supplies and server applications.
Innovation Solution
A magnetic assembly design featuring a magnetic core with multiple winding posts and side posts, forming multiple heat dissipation channels through strategically placed gaps, enhancing heat dissipation by creating both strip-shaped and annular channels for effective heat removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple magnetic elements are integrated in a planar structure to reduce size, then the volume of the magnetic assembly is reduced, but the heat dissipation performance deteriorates
Solution Approach 1:
The magnetic core is segmented into multiple independent magnetic elements (first magnetic element, second magnetic element, third magnetic element, fourth magnetic element) arranged in a three-dimensional configuration rather than a planar structure. Each magnetic element has its own winding posts and is surrounded by side posts, creating spatial separation that enables independent heat dissipation paths for each element, thus maintaining compact volume while improving heat dissipation performance.
Solution Approach 2:
The patent transitions from a two-dimensional planar integration to a three-dimensional structure by arranging magnetic elements vertically and horizontally with side posts extending in the height direction. The first and second cover plates are positioned at opposite ends of the height direction, creating heat dissipation channels that extend through the third dimension, effectively utilizing vertical space for both compactness and thermal management.
2Volume of moving object
If multiple magnetic elements are integrated to reduce size, then the volume is reduced, but the service life and safety deteriorate due to poor heat dissipation
Solution Approach 1:
The magnetic core is divided into multiple independent magnetic elements (first, second, third, and fourth magnetic elements) with separate winding posts and side posts surrounding each element. This segmentation creates independent heat dissipation channels for each magnetic element, preventing heat accumulation and improving reliability while maintaining compact volume.
Solution Approach 2:
Side posts are introduced as intermediary structures surrounding each magnetic element and extending between the first and second cover plates. These side posts create heat dissipation channels that act as thermal pathways, facilitating heat removal from each magnetic element and thereby improving service life and safety without increasing overall volume.
3Volume of moving object
If magnetic elements are integrated in a planar structure, then the volume is reduced, but heat dissipation channels are insufficient
Solution Approach 1:
The patent employs three-dimensional arrangement of magnetic elements and side posts, with side posts extending in the height direction between first and second cover plates. This vertical dimensionality creates multiple heat dissipation channels that extend through the height of the assembly, providing efficient thermal pathways without requiring increased planar footprint, thus maintaining compact volume while enhancing heat dissipation capability.
Solution Approach 2:
Each magnetic element is nested within a structure formed by surrounding side posts, with the side posts creating heat dissipation channels that enclose each magnetic element. This nested configuration allows multiple heat dissipation channels to be compactly arranged within the overall assembly volume, providing complex thermal management functionality without proportionally increasing device volume.
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 significantly improves heat dissipation, extending the service life and ensuring the safety of magnetic assemblies by providing multiple heat dissipation channels, thus addressing the issue of poor heat dissipation in integrated magnetic elements.
Implementation Method 1
a magnetic core and a winding. The magnetic core comprises a first cover plate, a second cover plate, a plurality of winding posts and a plurality of side posts arranged around the plurality of winding posts
Data Source
AI summary
The present application provides a magnetic assembly, a power module and a switching power supply. The magnetic assembly includes a magnetic core and a winding, wherein the magnetic core includes a first cover plate, a second cover plate, a plurality of winding posts and a plurality of side posts arranged around the plurality of winding posts, the number of the winding posts is at least 2, and the number of the side posts is at least 4; the first cover plate and the second cover plate of the magnetic core are respectively connected to top and bottom surfaces of the plurality of winding posts and the plurality of side posts of the magnetic core. The application can solve the problem of poor heat dissipation after integration of a plurality of magnetic elements.