US 12,142,414 B2
Coil component
Kaori Takezawa, Nagaokakyo (JP); Shigeto Yamamoto, Nagaokakyo (JP); Shingo Nakamoto, Nagaokakyo (JP); and Yukinobu Masuda, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Feb. 18, 2022, as Appl. No. 17/675,724.
Claims priority of application No. 2021-033448 (JP), filed on Mar. 3, 2021.
Prior Publication US 2022/0285086 A1, Sep. 8, 2022
Int. Cl. H01F 27/29 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01)
CPC H01F 27/29 (2013.01) [H01F 27/24 (2013.01); H01F 27/2823 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coil component comprising:
a winding core part having a central axis;
a first flange part connected to a first end, in a direction along the central axis, of the winding core part;
a second flange part connected to a second end, which is on an opposite side from the first end, of the winding core part;
a first terminal electrode and a second terminal electrode located on a surface of the first flange part;
a third terminal electrode and a fourth terminal electrode located on a surface of the second flange part;
a first wire including a part that extends in a spiral shape along a peripheral surface of the winding core part with the central axis being an axis of rotation of the first wire, the first wire having a first end that is connected to the first terminal electrode and a second end, which is on an opposite side from the first end, that is connected to the third terminal electrode; and
a second wire including a part that extends in a spiral shape outside the peripheral surface of the winding core part in a radial direction centered on the central axis with the central axis being an axis of rotation of the second wire, the second wire having a first end that is connected to the second terminal electrode and a second end, which is on an opposite side from the first end, that is connected to the fourth terminal electrode,
wherein the second wire includes an inner part that extends continuously in a spiral shape through a range greater than 360 degrees along the peripheral surface of the winding core part and an outer part that extends in a spiral shape outside the inner part in the radial direction, and
when, out of the part of the first wire that is wound around the winding core part, a first turn closest to the first end of the first wire on a wire path of the first wire is referred to as a first turn and a final turn closest to the second end of the first wire on the wire path of the first wire is referred to as an M-th turn, and L is an integer from 1 to M−1,
the inner part is located between an L-th turn and an (L+1)-th turn of the first wire.