Coil component

Patent metadata

Field	Value
Publication number	US-2024331911-A1
Application number	US-202418404288-A
Country	US
Kind code	A1
Filing date	Jan 4, 2024
Priority date	Mar 30, 2023
Publication date	Oct 3, 2024
Grant date	—

Abstract

A multilayer coil component includes an element body, a coil disposed in the element body, terminal electrodes disposed in the element body, and a first connection conductor and a second connection conductor that connect the coil and the terminal electrodes. A plurality of first pores are provided in the coil, a plurality of second pores are provided in the first connection conductor and the second connection conductor, and an area of the second pore per unit area in the first connection conductor and the second connection conductor is larger than an area of the first pore per unit area in the coil.

First claim

What is claimed is:

1 . A coil component comprising:
an element body; a coil disposed in the element body; a terminal electrode disposed in the element body; and a connection conductor connecting the coil and the terminal electrode, wherein a plurality of first holes are provided in the coil, a plurality of second holes are provided in the connection conductor, and an area of the second hole per unit area in the connection conductor is larger than an area of the first hole per unit area in the coil.

2 . The coil component according to claim 1 , wherein an average size of the second holes per unit area in the connection conductor is larger than an average size of the first holes per unit area in the coil.

3 . The coil component according to claim 1 , wherein resin is disposed in at least a part of the second holes.

4 . The coil component according to claim 1 , wherein, in the connection conductor, the second holes are disposed in a central region inside a surface of the connection conductor.

Assignees

• Tdk Corp

Inventors

• Nagai Yusuke
• Sato Takahiro
• Yoshino Makoto
• Umeda Hidenobu
• Takahashi Masaki
• ISHIMA Yuya
• Ito Kosuke
• Yasuda Keito
• Sasaki Takato
• Miyashita Takuya

Classifications

• H01F27/34

  Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields · CPC title

• H01F27/28

  Coils; Windings; Conductive connections · CPC title

• H01F27/29 Primary

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F2017/048

  with encapsulating core, e.g. made of resin and magnetic powder · CPC title

• H01F27/292

  Surface mounted devices · CPC title