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US 12,609,236 B2Granted
Coil component
AssigneeTDK Corporation
InventorsHokuto Eda, Hitoshi Ohkubo, Masazumi Arata, Masataro Saito, Kohei Takahashi, Takamasa Iwasaki
Life of this patent
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Abstract
In a coil component, heat radiation around a through conductor is improved. In the coil component, since the cross-sectional area of the inner end portion of the planar coil is designed to be relatively large, heat generated in the through conductor is easily transferred to the inner end portion. Since heat is efficiently transferred from the through conductor to the inner end portion, high heat radiation around the through conductor is achieved.
Claims8
A coil component comprising:
- an element body;
- an insulating substrate having an opening and provided in the element body;
- and
- a pair of coil portions including a pair of planar coils wound around the opening alongside with each other on the insulating substrate and a pair of through conductors respectively overlapping inner end portions of the planar coils adjacent to each other at an edge on the same side with respect to the opening and penetrating the insulating substrate;
- wherein in a cross section orthogonal to the insulating substrate, a cross-sectional area of the inner end portion of the planar coil is larger than a cross-sectional area of a portion of the planar coil located outside the inner end portion, and is larger than a cross-sectional area of the through conductor, and
- wherein in the cross section orthogonal to the insulating substrate, thicknesses of the inner end portions of the pair of planar coils in a direction away from the insulating substrate are different from each other.
3 more elements
Dependencies are inferred from the claim text.