Murata Manufacturing Co., Ltd.

Shingo Nakamoto

Kaori Takezawa

Shigeto Yamamoto

Yukinobu Masuda

A coil component has a structure capable of suppressing disconnection of a center wire material of a wire and reducing inconvenience due to deterioration of an insulating film. A slope is provided at a boundary portion between a mounting surface and an inner end face of a flange portion. A terminal electrode includes a first electrode portion provided along the mounting surface, and a second electrode portion provided along the slope so as to extend from a first electrode portion to the middle of the slope. A wire is electrically and mechanically connected in both the first electrode portion and the second electrode portion. A diameter of the wire on a winding core portion is larger than a dimension of the second electrode portion in a height direction, but a dimension of the slope in a depth direction is larger than the diameter of the wire.

Coil component

Heat is less likely to transfer from a terminal electrode to a wire. A coil component includes a core, a first terminal electrode provided on a first flange of the core, a winding portion wound around a winding core of the core, and a first wire having a first end. The first end of the first wire is electrically connected to the first terminal electrode. A part of the first end is spaced apart from the first terminal electrode.

A coil component comprises a first wire including a winding portion wound around a winding core portion of a core, a first end portion electrically connected to a terminal electrode provided in a first flange portion, and a first extended portion connecting the winding portion and the first end portion. In a first direction, the first end portion is positioned on a first side with respect to a central axis of the winding core portion, and a first boundary portion which is a boundary portion between the first extended portion and the winding portion is positioned on a second side with respect to the central axis. A corner of the winding core portion is positioned between the first boundary portion and the first end portion in a circumferential direction. A gap is interposed between the first extended portion and the corner.

Coil component and manufacturing method of coil component

In a coil component, a first wire has a part that extends in a spiral shape along a peripheral surface of a winding core part with a central axis being the axis of rotation. A second wire has a part that extends in a spiral shape outside the peripheral surface of the winding core in a radial direction centered on the central axis with the central axis being the axis of rotation. The second wire includes an outer part and an inner part. The inner part extends continuously along the peripheral surface of the winding core part in a spiral shape through a range greater than 360 degrees. The outer part extends in a spiral shape outside the inner part in a radial direction centered on the central axis. The inner part is located between the L-th turn and the (L+1)-th turn of the first wire.

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Nagaokakyo, Japan

Shingo Nakamoto