Inductor

Abstract

This application proposes an inductor. The inductor includes a magnetic core structure and a coil. The magnetic core structure includes a core body, at least three spacers, and multiple spindles. The core body has a mounting surface. At least three spacers are disposed on the mounting surface. The multiple spindles and at least three spacers are arranged in a straight line along the core body. Each spindle is connected between two adjacent spacers. The configuration of the core structure and coil can generate two impedance peaks corresponding to different frequencies, which allows the inductor to operate simultaneously in different frequency bands. The inductor of this application can replace at least two existing inductors.

Claims

1. An inductor comprising: a magnetic core structure including: a magnetic core body having a mounting surface; at least three spacer walls disposed on the mounting surface; and a plurality of spindles, the at least three spacer walls being arranged in a straight line along the magnetic core body, each of the plurality of spindles being connected between two adjacent spacer walls; and a coil wound around the plurality of spindles; wherein the coil includes a plurality of winding groups and at least one connecting wire, wherein the plurality of winding groups are respectively wound around the plurality of spindles and connected in series via the at least one connecting wire, and two of the plurality of winding groups have different numbers of turns.

2. The inductor as claimed in claim 1, further comprising: a plurality of adhesive layers disposed between the at least three spacer walls and the magnetic core body; wherein the plurality of adhesive layers are made of a non-magnetic insulating material.

3. The inductor as claimed in claim 2, wherein two of the plurality of adhesive layers have different thicknesses.

4. The inductor of claim 2, wherein each of the plurality of adhesive layers comprises an adhesive and a plurality of rigid particles, wherein the plurality of rigid particles are distributed in the adhesive.

5. The inductor of claim 4, wherein the plurality of adhesive layers comprises a first adhesive layer and a second adhesive layer, the thickness of the first adhesive layer is less than the thickness of the second adhesive layer, and the average particle size of the plurality of rigid particles in the first adhesive layer is less than the average particle size of the plurality of rigid particles in the second adhesive layer.

6. The inductor as claimed in claim 1, wherein two of the plurality of mandrels have different radial diameters.

7. The inductor as claimed in claim 1, wherein the at least one connecting line crosses one of the at least three spacer walls.

8. The inductor of claim 7, wherein each of the at least three spacer walls has a connecting surface facing the core body; wherein the at least one connecting line does not cross the connecting surface of each of the at least three spacer walls.

9. The inductor of claim 1, further comprising: two electrodes disposed on two of the at least three spacer walls and electrically connected to a common winding end and a common winding end of the coil, respectively.

Images