Magnetic component

Patent metadata

Field	Value
Publication number	US-12494318-B2
Application number	US-202117551628-A
Country	US
Kind code	B2
Filing date	Dec 15, 2021
Priority date	Dec 24, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A magnetic component includes two covers, two magnetic columns between the two covers, a winding frame and windings. Each of the magnetic columns includes at least three magnetic blocks. Spacers are arranged between two adjacent magnetic blocks and/or between the magnetic block and the cover. The spacers form air gaps of a magnetic circuit of the magnetic component. The winding frame includes two extension parts and base arranged at ends of the two extension parts. A limiting part is provided on the base. The windings are arranged around the extension parts, each of the windings includes a winding wire and at least one lead terminal at an end of the winding wire. The winding wire of the winding is a flat wire, and a winding mode of the flat wire around the extension part is a vertical winding; the at least one lead terminal is limited by the limiting part.

First claim

What is claimed is:

1 . A magnetic component, comprising:
two covers; two magnetic columns arranged between the two covers, wherein each of the magnetic columns comprises at least three magnetic blocks, spacers are arranged between two adjacent magnetic blocks and/or between the magnetic block and the cover, and the spacers form air gaps of a magnetic circuit of the magnetic component; a winding frame comprising two extension parts and a single base arranged at ends of the two extension parts, wherein the two extension parts are arranged on the single base and are perpendicular to the single base, a limiting part is provided in the single base, each of the two extension parts has a through channel through which the magnetic column passes; and windings arranged around the two extension parts respectively, wherein each winding comprises a winding wire and at least one lead terminal at an end of the winding wire, the winding wire of the winding is a flat wire, and a winding mode of the flat wire around the two extension parts are a vertical winding, wherein the at least one lead terminal after being bent is limited by the limiting part; wherein the magnetic component is a power factor correction inductor, and a current flowing through the winding includes a line frequency current and a high frequency current.

2 . The magnetic component according to claim 1 , wherein the single base comprises a supporting part connected to one end of the extension part, and the limiting part is arranged at one side of the supporting part.

3 . The magnetic component according to claim 2 , wherein the limiting part is provided with a through hole or a groove through which the lead terminal vertically pass, wherein the groove is formed by extending an outer edge of the limiting part to an inner direction of the limiting part.

4 . The magnetic component according to claim 3 , wherein a protrusion for pressing and fixing the lead terminal is arranged within the groove.

5 . The magnetic component according to claim 1 , wherein the spacer comprises an insulation sheet or a granular adhesive.

6 . The magnetic component according to claim 1 , wherein the at least three magnetic blocks have the same size.

7 . The magnetic component according to claim 1 , wherein the cross-sectional of the winding is contoured as a circular, a racetrack-shape or a rectangular with chamfers.

8 . The magnetic component according to claim 1 , wherein the magnetic component comprises two windings which are respectively arranged around the two extension parts, and the two windings are formed by winding one winding wire and the two windings totally have two lead terminals, wherein at least one of the two lead terminals is limited by the limiting part of the base.

9 . The magnetic component according to claim 1 , wherein the magnetic component comprises two windings which are respectively arranged around the two extension parts, and each of the two windings is formed by winding one winding wire and the two windings totally have four lead terminals, wherein at least one of the lead terminals of each of the windings is limited by the limiting part of the single base.

Assignees

• Delta Electronics Shanghai Co

Inventors

• Hong Tianding
• Lu Zengyi
• Yang Haijun
• Zhang Jinfa

Classifications

• H01F27/325

  Coil bobbins (formers for coils in general H01F5/02) · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H02M1/0064

  Magnetic structures combining different functions, e.g. storage, filtering or transformation · CPC title

• H01F27/2866

  Combination of wires and sheets · CPC title

• H02M1/42

  Circuits or arrangements for compensating for or adjusting power factor in converters or inverters · CPC title