Coil device
AssigneeTDK Corporation
InventorsKazunori Arimitsu, Nobuo Kitajima, Fuyuki Miura, Takehiko Narisawa, Kiichi Fujisawa
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Abstract
A highly reliable coil device is provided. An inductor 1 includes a coil 2 formed of a flat wire, a first terminal 4a including a first wire connecting portion 42a formed with a first accommodation recessed portion 421a in which a first lead-out portion 3a of the coil 2 is accommodated, and a second terminal 4b including a second wire connecting portion 42b formed with a second accommodation recessed portion 421b in which a second lead-out portion 3b of the coil 2 is accommodated, in which the first accommodation recessed portion 421a and the second accommodation recessed portion 421b are displaced from each other along a winding axis direction of the coil 2.
Claims11
A coil device, comprising:
- a coil formed of a flat wire;
- a first terminal including a first wire connecting portion formed with a first accommodation recessed portion accommodating a first lead-out portion of the coil;
- and
- a second terminal including a second wire connecting portion formed with a second accommodation recessed portion accommodating a second lead-out portion of the coil, wherein
- the first accommodation recessed portion and the second accommodation recessed portion are displaced from each other along a winding axis direction of the coil,
- the first wire connecting portion and the second wire connecting portion extend along the winding axis direction at different positions,
- a length of the first wire connecting portion along the winding axis direction is longer than a length of the second wire connecting portion along the winding axis direction,
- the first accommodation recessed portion notches a first tip of the first wire connecting portion along the winding axis direction,
- the second accommodation recessed portion notches a second tip of the second wire connecting portion along the winding axis direction, and
- a length from a position of the first tip to a position of a bottom of the first accommodation recessed portion along the winding axis direction is shorter than a length from the position of the first tip to a position of a bottom of the second accommodation recessed portion along the winding axis direction.
A coil device, comprising:
- an element body;
- a coil formed of a flat wire and embedded in the element body;
- a first terminal including a first wire connecting portion connected a first lead-out portion of the coil, the first wire connecting portion being disposed inside the element body;
- and a second terminal including a second wire connecting portion connected a second lead-out portion of the coil, the second wire connecting portion being disposed inside the element body, wherein a first accommodation recessed portion accommodating the first lead-out portion is formed in the first wire connecting portion, and a second accommodation recessed portion accommodating the second lead-out portion is formed in the second wire connecting portion, at least one of the first lead-out portion and the second lead-out portion is led out to a first side surface of the element body, the first wire connecting portion has a first main surface facing to the first side surface, the second wire connecting portion has a second main surface facing to the first side surface, a length of the first wire connecting portion facing the first side is longer than a length of the second wire connecting portion facing the first side, the first accommodation recessed portion penetrates the first wire connecting portion in a direction perpendicular to the first main surface, and the second accommodation recessed portion penetrates the second wire connecting portion in a direction perpendicular to the second main surface.
Dependencies are inferred from the claim text.