Chip Inductor Coil Support Structure for Low-Profile Compression
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Solution Overview
Problem
Existing coil components face challenges in preventing deformation during the stacking and compressing of magnetic composite sheets, which can lead to defects and hinder the miniaturization and efficiency of chip inductor components.
Innovation Solution
A coil component design that includes a body with a support member featuring a support portion and stopper portions at the corners, which helps to prevent coil deformation by dispersing stress evenly during the stacking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If magnetic composite sheets are stacked and compressed to thin the coil component, then the profile height is reduced, but the coil may deform during the process
Solution Approach 1:
A support member is introduced as an intermediary element between the coil and the magnetic composite sheets. This support member includes a support portion that directly supports the coil and stopper portions that extend to the side surfaces of the body, preventing excessive compression and distributing the stacking stress evenly, thereby preventing coil deformation during the thinning process
Solution Approach 2:
The support member is positioned and fixed in advance before the stacking and compression process begins. The stopper portions are预先 disposed at locations that will prevent coil deformation during subsequent compression, allowing the coil to be protected before the harmful compression force is applied
2Manufacturing precision
If the coil is protected from deformation using support structures, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The support member is divided into functionally distinct segments: a support portion that contacts and supports the coil, and stopper portions that extend to the side surfaces to prevent excessive compression. This segmentation allows each part to perform its specific function efficiently while keeping the overall structure relatively simple
Solution Approach 2:
The support member serves multiple functions simultaneously: it supports the coil during stacking, distributes compression stress evenly, prevents coil deformation, and restricts excessive compression through its stopper portions. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity
Data Source
AI summary
A coil component includes a body having a first surface, a second surface opposing the first surface in a first direction, and a plurality of side surfaces connecting the first surface and the second surface, a coil embedded in the body, and a support member embedded in the body and including a support portion supporting the coil and at least one stopper portion disposed at a corner formed by two or more of the plurality of side surfaces of the body in an outer region of the support portion.