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US 12,260,988 B2Granted
Coil device
AssigneeTDK Corporation
InventorsKatsuhiro Ishigaki, Hideaki Harata, Shoichi Tani
Life of this patent
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Abstract
A coil device includes a coil portion and a bobbin. The coil portion includes wires connectable to terminals. The bobbin includes a first terminal block and a second terminal block formed on both sides in a winding axis direction of a cylindrical portion for forming the coil portion around the cylindrical portion. A length of the first terminal block in a width direction perpendicular to the winding axis direction is larger than that of the second terminal block in the width direction.
Claims10
A coil device comprising:
- a coil portion including wires connectable to terminals;
- and
- a bobbin including a first terminal block and a second terminal block formed on both sides in a winding axis direction of a cylindrical portion for forming the coil portion around the cylindrical portion,
- wherein a length of the first terminal block in a width direction perpendicular to the winding axis direction is larger than that of the second terminal block in the width direction, and
- the lead portion of at least one of the wires has a resonance frequency of 2000 Hz or higher.
2 more elements
A coil device comprising:
- a coil portion including wires connectable to terminals;
- and
- a bobbin including a first terminal block and a second terminal block formed on both sides in a winding axis direction of a cylindrical portion for forming the coil portion around the cylindrical portion,
- wherein a length of the first terminal block in a width direction perpendicular to the winding axis direction is larger than that of the second terminal block in the width direction,
- a lead portion of at least one of the wires drawn from the coil portion to at least one of the terminals is divided into a plurality of free portions, and
- the free portions have a largest length of 10 mm or less.
3 more elements
A coil device comprising:
- a coil portion including wires connectable to terminals;
- and
- a bobbin including a first terminal block and a second terminal block formed on both sides in a winding axis direction of a cylindrical portion for forming the coil portion around the cylindrical portion, wherein
- a length of the first terminal block in a width direction perpendicular to the winding axis direction is larger than that of the second terminal block in the width direction,
- the first terminal block includes an extension section protruding outward from an outline of the coil portion in the width direction,
- at least one of the terminals is attached to the extension section,
- the terminal includes a center-side terminal provided at the extension section and an extension-side terminal provided at the extension section which is located at an outer side than the center-side terminal in the width direction,
- the center-side terminal and the extension-side terminal are attached to an outer surface of the extension section,
- the extension section located between the center-side terminal and the extension-side terminal includes a first protrusion portion,
- the first protrusion portion protrudes inwardly from the outer surface of the first terminal block in the winding axis direction, and
- the first protrusion portion includes a first contact portion that changes a drawing direction of a lead portion of at least one of the wires.
8 more elements
Dependencies are inferred from the claim text.