Patent ID: 11901106
Assignee: TAIYO YUDEN CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 15:
16. A coupling coil element having a rectangular parallelepiped shape and having a principal surface including long sides and short sides, the coupling coil element comprising:
a drum core including a first flange, a second flange, and a winding core connecting between the first flange and the second flange;
a first winding wound around the winding core;
a second winding wound around the winding core;
a first external electrode electrically connected to one end of the first winding; and
a second external electrode electrically connected to the other end of the first winding,
a third external electrode electrically connected to one end of the second winding;
a fourth external electrode electrically connected to the other end of the second winding; and
a covering portion covering at least a part of the winding core,
wherein the winding core extends along the short sides of the principal surface;
wherein the coil element has a height less than 0.85 mm, the height being a dimension of the first flange of the coil element in a direction perpendicular to the principal surface; and
wherein the coil element has a width, the width being a dimension of the coil element in the direction parallel to the short sides of the principal surface and parallel to a central axis of the winding core, and the central axis of the winding core extends along the short sides of the principal surface,
wherein the first flange is provided at one end of the winding core in the direction parallel to the short sides of the principal surface and parallel to the central axis of the winding core, and the second flange is provided at another end of the winding core in the direction parallel to the short sides of the principal surface and parallel to the central axis of the winding core; and
wherein the width in the direction parallel to the short sides of the principal surface is greater than the height.