US 2019/0378643 A1Published application

Magnetic component and power module

AssigneeDelta Electronics (Shanghai) Co., Ltd.

InventorsJinping Zhou, Mingzhun Zhang

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Abstract

A magnetic component and a power module using the same are provided. The magnetic component includes a magnetic core, a first winding set and a second winding set. The magnetic core includes two connecting portions connected through three magnetic columns to form two opposite sides. Each connecting portion includes a pair of first air gaps spaced apart by the middle magnetic column. The first winding set and the second winding set are made by a flat conductive body, respectively, and spaced apart at a distance. The first winding set includes two first conducting portions connected through a first horizontal portion. The second winding set includes two second conducting portions connected through a second horizontal portion. The first horizontal portion and the second horizontal portion are exposed to the first side, and the two first conducting portions and the two second conducting portions are extended to the second side.

Claims20

Dependent claims

A magnetic component comprising:

a magnetic core comprising a first magnetic column, a second magnetic column, a third magnetic column, a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are connected with each other through the first magnetic column, the second magnetic column and the third magnetic column to form a first side and a second side, wherein the first side and the second side are opposite to each other, the first magnetic column is located between the second magnetic column and the third magnetic column, wherein each of the first connecting portion and the second connecting portion comprises a pair of first air gaps, respectively, and the pair of first air gaps spatially correspond to two opposite lateral sides of the first magnetic column, respectively;
and
a first winding set and a second winding set respectively made by a flat conductive body in flatwise winding on the first magnetic column, and spaced apart with each other at a distance, wherein the first winding set comprises a first horizontal portion and two first conducting portions, and the two first conducting portions are connected to each other through the first horizontal portion;
wherein the second winding set comprises a second horizontal portion and two second conducting portions, and the two second conducting portions are connected to each other through the second horizontal portion, wherein the first horizontal portion and the second horizontal portion are at least partially exposed to the first side, and the two first conducting portions and the two second conducting portions are extended to the second side to form two surface mounting pads of the first winding set and two mounting pads of the second winding set, respectively.

1 more element

A magnetic component comprising:

a magnetic core comprising a first magnetic column, a second magnetic column, a third magnetic column, a first connecting portion, a second connecting portion and a third connecting portion, wherein the first connecting portion and the second connecting portion are connected with each other through the first magnetic column, the second magnetic column and the third magnetic column to form a first side and a second side, the first side and the second side are opposite to each other, the first magnetic column is located between the second magnetic column and the third magnetic column, and the third connecting portion is located between the first connecting portion and the second connecting portion, wherein the third connecting portion has a relative permeability lower than that of each of the first magnetic column, the second magnetic column, the third magnetic column, the first connecting portion and the second connecting portion;
and
a first winding set and a second winding set disposed on the first magnetic column of the magnetic core, and spaced apart by the third connecting portion, wherein the first winding set comprises a first horizontal portion and two first conducting portions, and the two first conducting portions are connected to each other through the first horizontal portion;
wherein the second winding set comprises a second horizontal portion and two second conducting portions, and the two second conducting portions are connected to each other through the second horizontal portion, wherein the first horizontal portion and the second horizontal portion are at least partially exposed to the first side, and the two first conducting portions and the two second conducting portions are extended to the second side, wherein the first winding set and the second winding set are made by a flat conductive body, respectively.

1 more element

A power module comprising:

a magnetic component comprising:
a magnetic core comprising a first magnetic column, a second magnetic column, a third magnetic column, a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are connected with each other through the first magnetic column, the second magnetic column and the third magnetic column to form a first side and a second side, wherein the first side and the second side are opposite to each other, the first magnetic column is located between the second magnetic column and the third magnetic column, wherein each of the first connecting portion and the second connecting portion comprises a pair of first air gaps, respectively, and the pair of first air gaps spatially correspond to two opposite lateral sides of the first magnetic column, respectively;
and
a first winding set and a second winding set respectively made by a flat conductive body in flatwise winding on the first magnetic column, and spaced apart with each other at a distance, wherein the first winding set comprises a first horizontal portion and two first conducting portions, and the two first conducting portions are connected to each other through the first horizontal portion;
wherein the second winding set comprises a second horizontal portion and two second conducting portions, and the two second conducting portions are connected to each other through the second horizontal portion, wherein the first horizontal portion and the second horizontal portion are at least partially exposed to the first side, the two first conducting portions are extended to the second side to form a first connection terminal and a second connection terminal of the first winding set, and the two second conducting portions are extended to the second side to form a first connection terminal and a second connection terminal of the second winding set, respectively;
and
a first switch unit and a second switch unit, wherein the first connection terminal of the first winding set is connected to the first switch unit, and the first connection terminal of the second winding set is connected to the second switch unit, wherein when a first current flows through the second winding set from the first connection terminal to the second connection terminal and a second current flows through the first winding set from the first connection terminal to the second connection terminal, respectively, two magnetic fluxes are generated to have directions opposite to each other in the first magnetic column;
wherein a connection point of the second connection terminal of the first winding set and the second connection terminal of the second winding set is served as an output terminal of the power module.

5 more elements

A power module comprising:

a magnetic component comprising:
a magnetic core comprising a first magnetic column, a second magnetic column, a third magnetic column, a first connecting portion, a second connecting portion and a third connecting portion, wherein the first connecting portion and the second connecting portion are connected with each other through the first magnetic column, the second magnetic column and the third magnetic column to form a first side and a second side, the first side and the second side are opposite to each other, the first magnetic column is located between the second magnetic column and the third magnetic column, and the third connecting portion is located between the first connecting portion and the second connecting portion, wherein the third connecting portion has a relative permeability lower than that of each of the first magnetic column, the second magnetic column, the third magnetic column, the first connecting portion and the second connecting portion;
and
a first winding set and a second winding set disposed on the first magnetic column of the magnetic core, and spaced apart by the third connecting portion, wherein the first winding set comprises a first horizontal portion and two first conducting portions, and the two first conducting portions are connected to each other through the first horizontal portion;
wherein the second winding set comprises a second horizontal portion and two second conducting portions, and the two second conducting portions are connected to each other through the second horizontal portion, wherein the first horizontal portion and the second horizontal portion are at least partially exposed to the first side, and the two first conducting portions and the two second conducting portions are extended to the second side, wherein the first winding set and the second winding set are made by a flat conductive body, respectively;
and
a first switch unit and a second switch unit, wherein a first connection terminal of the first winding set is connected to the first switch unit, and a first connection terminal of the second winding set is connected to the second switch unit, wherein when a first current flows through the second winding set from the first connection terminal to a second connection terminal and a second current flows through the first winding set from the first connection terminal to a second connection terminal, respectively, two magnetic fluxes are generated to have directions opposite to each other in the first magnetic column;
wherein a connection point of the second connection terminal of the first winding set and the second connection terminal of the second winding set is served as an output terminals of the power module.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/527,829Filed 31 Jul 2019
Priority: CN 201610969989.628 Oct 2016
Published: 12 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01F 17/04
Fixed inductances of the signal type: with magnetic core
H01F 27/2804
Coils; Windings; Conductive connections: printed windings
H01F 3/14
Composite arrangements of magnetic circuits: constrictions; Gaps, e.g. air-gaps
H01F 27/24
Details of transformers or inductances, in general: magnetic cores

Family

Application15/784,864Continuation in part · filed 16 Oct 2017
Application15/920,548Continuation in part · filed 14 Mar 2018
Application16/259,721Continuation in part · filed 28 Jan 2019
Application16/527,829Continuation in part
US 10,062,499 B2Related patent
US 10,242,791 B2Related patent
US 10,438,736 B2Related patent
US 10,643,782 B2Related patent
US 2018/0122562 A1Published application
US 2018/0204666 A1Published application
US 2019/0172629 A1Published application
US 2019/0378643 A1This patent

From the US filing history. Foreign family members aren’t listed.

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