Patent ID: 11955276
Assignee: TAIYO YUDEN CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A coil component, comprising:
an insulator part constituted by an electrical insulation material and being no more than 600 μm long in a length direction and no more than 600 μm high in a height direction; and
a coil part wound around one axis spirally in the one axis direction perpendicular to the length direction and the height direction and embedded inside the insulator part, wherein a central part which is inside the winding of the coil part as viewed from the one axis direction is constituted by the electrical insulation material, and an external part which is outside the winding of the coil part as viewed from the one axis direction is constituted by the said electrical insulation material,
wherein the central part of the coil part is an opening part when solely the coil part is viewed from the one axis direction, wherein the opening part is defined by an inner periphery of the winding of the coil part, wherein the inner periphery of the opening part is constituted by straight line parts and chamfered-corner line parts and whose shape is a closed approximate quadrangle formed by four sides each constituted by a portion of the straight line parts and a portion of the chamfered-corner parts as viewed from the one axis direction, wherein a line length of the chamfered-corner line parts along the inner periphery of the opening part is 20% or more but no more than 40% of a line length of the inner periphery of the opening part, and
wherein each chamfered-corner line part is an angled part positioned at each point of intersection between lines extended from the straight line parts that are adjacent to each other, where an angle formed by the extended lines is a sharp angle of less than 90 degrees or an obtuse angle over 90 degrees.