Inductor

WO2026133680A1PCT designated stage Publication Date: 2026-06-25MURATA MFG CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MURATA MFG CO LTD
Filing Date
2025-10-03
Publication Date
2026-06-25

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Abstract

The present invention facilitates improvement of electrical characteristics of an inductor.　One aspect according to the present invention is an inductor comprising: an element body including a core and a coil embedded in the core; and an external terminal provided on the surface of the element body. The coil includes a winding part in which a conducting wire is alpha-wound, and a lead-out part led out from the winding part and connected to the external terminal. The core includes a columnar part inside the winding part. The center of the columnar part is at a position offset from the center of the element body as viewed along a winding axis of the winding part.
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Claims

1. An inductor comprising: a body having a core and a coil embedded in the core; and an external terminal provided on the surface of the body, wherein the coil has a winding portion in which a conductor is alpha-wound and a lead portion drawn out from the winding portion and connected to the external terminal; the core has a columnar portion inside the winding portion, and the center of the columnar portion is offset from the center of the body when viewed along the winding axis of the winding portion.

2. The inductor according to claim 1, wherein the number of turns in the winding portion is odd, and the center of the columnar portion is located offset from the center of the base body in the longitudinal direction of the base body when viewed along the winding shaft.

3. The inductor according to claim 1, wherein the number of turns in the winding portion is even, and the center of the columnar portion is offset from the center of the base body in the width direction of the base body when viewed along the winding shaft.

4. The inductor according to any one of claims 1 to 3, wherein, when viewed along the winding shaft, the center of the columnar portion is located at a position offset from the center of the body by an amount of 10% to 150% of the thickness of the conductor in the longitudinal direction or the width direction of the body.