US 12,217,897 B2
Multilayer coil component
Yuya Oshima, Tokyo (JP); Junichi Otsuka, Tokyo (JP); Shinichi Kondo, Tokyo (JP); Yohei Tadaki, Tokyo (JP); Kazuo Iwai, Tokyo (JP); Masayuki Suzuki, Yurihonjo (JP); Emiri Matsuhashi, Tokyo (JP); and Takuya Niibori, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Jul. 6, 2021, as Appl. No. 17/368,332.
Prior Publication US 2022/0013278 A1, Jan. 13, 2022
Int. Cl. H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01); H01F 41/04 (2006.01)
CPC H01F 27/2804 (2013.01) [H01F 27/29 (2013.01); H01F 27/323 (2013.01); H01F 41/041 (2013.01); H01F 2027/2809 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multilayer coil component comprising:
an element body including a plurality of insulator layers laminated in a first direction and having a pair of end surfaces opposing each other in a second direction orthogonal to the first direction;
a first coil and a second coil disposed in the element body and respectively having coil axes along the second direction; and
a pair of external electrodes disposed on the pair of end surfaces and electrically connected to both ends of the first coil and the second coil, wherein
the first coil includes a first conductor layer, a second conductor layer, and a first through hole conductor extending in the first direction and connecting the first conductor layer and the second conductor layer,
the second coil includes a third conductor layer, a fourth conductor layer, and a second through hole conductor extending in the first direction and connecting the third conductor layer and the fourth conductor layer,
the first coil and the second coil are electrically connected in parallel between the pair of external electrodes,
the coil axis of the first coil is disposed inside the second coil,
the first conductor layer and the third conductor layer are separated from each other in the first direction and intersect with each other when viewed from the first direction,
a fifth conductor layer is arranged between the first conductor layer and the third conductor layer in the first direction, and
wherein the fifth conductor layer is configured to supply current to both the first conductor layer and the third conductor layer.