US 12,224,109 B2
Coil component
Takanori Yoshizawa, Tokyo (JP); Masanori Okawara, Tokyo (JP); and Hideharu Suzuki, Tokyo (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Oct. 11, 2021, as Appl. No. 17/498,370.
Claims priority of application No. 2020-187208 (JP), filed on Nov. 10, 2020.
Prior Publication US 2022/0148795 A1, May 12, 2022
Int. Cl. H01F 17/04 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01)
CPC H01F 27/292 (2013.01) [H01F 27/255 (2013.01); H01F 27/2828 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A coil component comprising:
a core including a mounting surface extending from one end to the other end along a one-axis direction, a recessed portion connected to the one end of the mounting surface in the one-axis direction and recessed from the mounting surface, and an end surface connected to the recessed portion;
a conductive wire wound around the core with one end disposed at the recessed portion; and
a solder portion provided at the recessed portion to be electrically connected to the one end of the conductive wire, the solder portion having a curved surface, the solder portion including a peak projecting from the mounting surface, the solder portion being configured such that a distance between the curved surface of the solder portion and a plane passing through the mounting surface of the core is longest at the peak, the solder portion being sectioned into an inner region and an outer region by a border line extending through the peak in a direction perpendicular to the mounting surface, the inner region located farther from the end surface than the border line in the one-axis direction, and the outer region located closer to the end surface than the border line in the one-axis direction and having a larger volume than the inner region.