Coil component
By designing a specific biased coil end and lead-out structure on the insulating substrate, combined with resin covering containing metallic magnetic powder, the problem of low coupling coefficient in the coil component was solved, achieving a higher coupling coefficient and improved component characteristics.
CN115691964BActive Publication Date: 2026-07-24TDK CORP
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TDK CORP
- Filing Date
- 2022-07-19
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
In existing coil components, the coupling coefficient is low, which affects the component characteristics.
Method used
By designing the coil structure on the insulating substrate, the ends of the first and second planar coils are offset at specific positions of the lead-out portion, shortening the length of the non-parallel portion, and an insulator is placed between the insulating substrate and the lead-out portion. The coil structure is then covered with resin containing metallic magnetic powder to improve the coupling coefficient.
Benefits of technology
A high coupling coefficient was achieved for the coil component, improving the component characteristics.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115691964B_ABST
Abstract
Provided is a coil component capable of improving a coupling coefficient. In the coil component, an outer end portion of a first planar coil is offset to a second lead portion side from a center line of a first lead portion at a joining position of the first planar coil and the first lead portion. Thus, a length of a second planar coil that is not parallel to an outermost turn of the first planar coil can be shortened. By shortening the length of the second planar coil, the coupling coefficient between the first coil portion and the second coil portion can be improved.
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