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Coil component

專利號
US10867743B2
公開日期
2020-12-15
申請人
TAIYO YUDEN CO., LTD.(JP Tokyo)
發(fā)明人
Takayuki Sekiguchi; Ichiro Yokoyama; Masuo Yatabe; Noriyuki Mabuchi; Tomoyuki Oyoshi
IPC分類
H01F27/29; H01F17/00; H01F27/28; H01F27/32; H01F41/04
技術領域
conductor,face,conductors,inductor,body,insulative,in,coil,external,element
地域: Chuo-ku, Tokyo

摘要

In an embodiment, a coil component includes: an element body part 10; a coil conductor 36 constituted by first conductors 32 extending along the pair of end faces 16 and orthogonally to a bottom face 14, as well as second conductors 34 extending from one side, to the other side, of the pair of end faces and thereby connecting the multiple first conductors 32; lead conductor parts 38 electrically connected to two ends of the coil conductor, respectively; and a pair of external electrodes 50 electrically connected to the lead conductor parts; wherein at least one end of the coil conductor is electrically connected, via the lead conductor, to the external electrode at a top face 12 of the element body part; and the coil conductor extends from the at least the one end, using a second conductor, along and near the top face.

說明書

The Q-value of the inductor 100 in Example 1 became higher probably because of the reason described below. To be specific, the inductor 500 in Comparative Example 1 has its coil conductor 36 electrically connected to the external electrodes 50, via the lead conductor parts 38, at the end faces 16 of the element body part 10. Under this constitution, the lead conductor parts 38, and the parts of the external electrodes 50 provided on the top face 12 of the element body part 10, are positioned so that they become roughly parallel with each other, and thus form a parallel plate, and therefore a relatively large parasitic capacitance generates. Similarly, the inductor 600 in Comparative Example 2 also generates a relatively large parasitic capacitance between the lead conductor parts 38 and the parts of the external electrodes 50 provided on the bottom face 14 of the element body part 10. In Example 1, on the other hand, the lead conductor parts 38 are connected to the parts of the external electrodes 50 provided on the top face 12 of the element body part 10, from a roughly vertical direction, and therefore the parasitic capacitance can be kept smaller than in Comparative Examples 1 and 2. This is probably why the Q-value became higher in Example 1 than in Comparative Example 1 or Comparative Example 2.

權利要求

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