Integrated Magnetic Assembly for Core Positioning and Insulation
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Solution Overview
Problem
Existing integrated magnetic components face challenges in manufacturing, particularly in positioning common mode and differential mode magnetic cores to avoid saturation and ensure electrical insulation, with components often shifting during potting, leading to asymmetric gaps and insulation distances.
Innovation Solution
An integrated magnetic component design featuring a baseplate with an integral cavity portion and sidewalls that house and surround the differential mode core and winding, providing reliable insulation and separation distances, and through-holes for coil terminations to secure component positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If components are positioned manually during manufacturing, then flexibility in assembly is maintained, but positioning precision and consistency of insulation distances deteriorate
Solution Approach 1:
The baseplate is segmented into functional zones: a cavity portion for housing the differential mode core and sidewalls for positioning the common mode core and winding. This segmentation allows each zone to serve its specific purpose while maintaining overall manufacturing precision.
Solution Approach 2:
The baseplate acts as an intermediary structure between the magnetic cores and the external environment. It provides a stable platform with integrated positioning features that ensure consistent spacing and insulation distances without requiring complex external fixtures or manual adjustment mechanisms.
2Stability of the object's composition
If components are secured rigidly to prevent movement, then positioning stability is improved, but manufacturing ease and component accessibility deteriorate
Solution Approach 1:
The baseplate is designed with pre-formed cavity portions and sidewalls that create positioning features before components are assembled. The cavity portion houses the differential mode core in a predetermined position, and the sidewalls extend to provide ready-made positioning surfaces for the common mode core and winding, eliminating the need for post-assembly adjustments.
Solution Approach 2:
The cavity portion of the baseplate nestedly houses the differential mode core, while the sidewalls create nested positioning structures for the common mode core and winding. This nesting arrangement provides stable positioning while maintaining ease of assembly, as components are simply placed into their respective nested spaces rather than requiring complex fastening operations.
Data Source
AI summary
The disclosure concerns an integrated magnetic component, comprising a common mode inductance formed by a common mode core and winding wound around the common mode core; a differential mode inductance formed by a differential mode core and the winding, an axial direction being defined as parallel to a substantial longitudinal extension of the differential mode core; and a baseplate which holds the common mode inductance and the differential mode inductance, wherein the baseplate integrally comprises a cavity portion housing the differential mode core and at least one sidewall at least partially surrounding an outer surface of the winding and/or of the common mode core opposite the differential mode core along a radial direction perpendicular to the axial direction.