Magnetic Component Unit with Nested Core Fixing Structure
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Solution Overview
Problem
Conventional magnetic component units experience an increase in size and volume due to the growth of coil components, leading to an excessive increase in the area and volume of the magnetic component unit, which is inefficient and impractical for electronic devices.
Innovation Solution
The magnetic component unit incorporates a metal magnetic core fixing portion with a holding, engaging, and pressing structure that reduces the need for additional fixing members, utilizing a U-shaped engaging portion and a columnar press fixing portion to securely attach the coil component to a metal heat dissipator, minimizing the area required on the heat dissipator and optimizing heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If coil component size increases to handle higher electricity, then power handling capability improves, but plan view area and volume of magnetic component unit increase excessively
Solution Approach 1:
The magnetic core fixing portion is nested within the space between the coil component and heat dissipator, utilizing otherwise wasted space. The fixing portion includes a holding portion that contacts the coil component, an engaging portion that hooks onto the heat dissipator, and a pressing portion that applies pressure, all contained within the vertical space rather than expanding horizontal footprint.
Solution Approach 2:
The fixing structure transitions from horizontal expansion to vertical utilization. The engaging portion extends in the vertical direction to hook onto the heat dissipator, and the pressing portion applies force in the vertical direction, converting a two-dimensional area problem into a three-dimensional space utilization solution.
2Reliability
If additional fixing members are added to secure coil component, then fixation reliability improves, but device complexity and volume increase
Solution Approach 1:
The magnetic core fixing portion combines multiple functions into a single integrated component: the holding portion secures the coil component, the engaging portion attaches to the heat dissipator, and the pressing portion applies fixation pressure. This merged structure replaces what would traditionally require multiple separate fixing members.
Solution Approach 2:
The magnetic core fixing portion serves multiple functions simultaneously: it acts as a mechanical connector, a pressure applicator, and a structural support element. This multi-functional design eliminates the need for dedicated fixing members, reducing overall device complexity while maintaining reliability.
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 configuration effectively reduces the plan view area and volume of the magnetic component unit while maintaining secure fixation and efficient heat dissipation, even as the coil component size increases, thereby improving the unit's compactness and thermal management.
Implementation Method 1
a heat dissipator on which the coil component is mounted and which has an engagement fixing portion and a press fixing portion and is made of metal
Data Source
AI summary
A magnetic component unit in the present disclosure includes: a coil component; a heat dissipator which has an engagement fixing portion and a press fixing portion; and a magnetic core fixing portion. The magnetic core fixing portion includes: a holding portion that presses against the coil component; an engaging portion that extends from a first end part of the holding portion toward the heat dissipator and has a turned-back end part; and a pressing portion that extends from a second end part of the holding portion toward the heat dissipator and has an end part bent into an L-shape. The engagement fixing portion has a U-shape, and one end and the other end of the engagement fixing portion are connected to a peripheral edge portion of the heat dissipator. The press fixing portion has a columnar shape and is provided vertically protruding from the heat dissipator.