Multi-phase symmetrical integrated magnetic component of magnet yoke closed type

A closed type, magnetic yoke technology, applied in the direction of electrical components, transformer/inductor cores, transformer/inductor components, etc., can solve the problems of unequal inductance parameters of each phase, asymmetric structure of inductance parameters, and unequal current of each phase. Phase and other issues, to achieve the effect of low current fluctuation, high response speed, and reduce core loss

Pending Publication Date: 2020-06-02
杨玉岗
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the present invention provides a multi-phase integrated magnetic part (including a multi-phase transformer and a multi-phase coupled inductor) with a closed yoke and symmetrical structure and parameters to solve the problems in the existing multi-phase parallel switching power supply equipment. Due to the unequal inductance parameters of multi-phase discrete magnetic

Method used

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  • Multi-phase symmetrical integrated magnetic component of magnet yoke closed type
  • Multi-phase symmetrical integrated magnetic component of magnet yoke closed type
  • Multi-phase symmetrical integrated magnetic component of magnet yoke closed type

Examples

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Embodiment 1

[0024] Refer to attached figure 1 , in order to solve the problem of unequal inductance parameters of three-phase transformers, a magnetic integrated transformer with closed yoke three-phase structure and symmetrical inductance parameters is proposed, which is composed of iron core and three-phase primary and secondary windings, characterized in that the The iron core is composed of a yoke 1, three main magnetic columns 2 and three auxiliary magnetic columns 5; the yoke 1 is circular, and the three main magnetic columns 2 have the same material and structure and are equal in size. One end of the three main magnetic columns 2 is connected, and the other ends of the three main magnetic columns 2 are respectively connected to the yoke 1, and the included angles between the three main magnetic columns 2 are equal, all of which are 120° The three auxiliary magnetic columns 5 are symmetrically located between the three main magnetic columns 2, and one end of the three auxiliary magn...

Embodiment 2

[0026] Refer to attached figure 2, a three-phase transformer with symmetrical structure and parameters, characterized in that the annular yoke 1 in Embodiment 1 is changed to a regular hexagonal annular yoke 6, and one end of the three main magnetic columns 2 is connected, The other ends of the three main magnetic columns 2 are respectively connected to the central positions of the three sides of the regular hexagonal yoke which are separated by two pairs, and one of the ends of the three auxiliary magnetic columns is connected to the three sides. One ends of the three main magnetic columns are connected, and the other ends of the three auxiliary magnetic columns are symmetrically connected to the centers of the other three sides of the regular hexagonal ring yoke.

Embodiment 3

[0028] Refer to attached image 3 , removing the secondary winding 4 of each phase in Embodiment 1 to form a coupled inductor with a three-phase structure and symmetrical parameters.

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Abstract

The invention provides a multi-phase structure and parameter symmetrical integrated magnetic component of a magnet yoke closed type, and relates to the technical field of power electronics application. The transformer comprises an iron core, a multi-phase primary winding and a multi-phase secondary winding; the iron core comprises a magnet yoke, a plurality of main magnetic columns and auxiliary magnetic columns. The magnet yoke is of a closed symmetrical loop structure. One ends of the plurality of main magnetic columns are connected, and the other ends of the plurality of main magnetic columns are respectively connected with the magnet yoke; included angles among the plurality of main magnetic columns are equal, the plurality of auxiliary magnetic columns are symmetrically positioned among the plurality of main magnetic columns, and the multiphase primary side winding and the multiphase secondary side winding are symmetrically wound on the plurality of main magnetic columns. The beneficial effects of the invention are that the multi-phase structure and parameter symmetrical integrated magnetic component is used for magnetic coupling integration of multi-phase inductors and transformers in power conversion circuits of various non-isolated multi-phase parallel switching power supplies and isolated multi-phase parallel switching power supplies, structural symmetry and equal parameters of the multi-phase magnetic integrated inductor and the transformer are achieved, and high-power output of the multi-phase parallel switching power supplies and automatic balance of currents ofall phases are achieved.

Description

technical field [0001] The invention relates to a multi-phase integrated magnetic part, in particular to an integrated magnetic part with closed yoke multi-phase structure and parameter symmetry (including transformer with multi-phase structure and parameter symmetry) for various multi-phase parallel power conversion circuits , coupled inductors, integrated magnetics for transformers and inductors). [0002] technical background [0003] In recent years, switching power supplies that provide electrical energy for various electrical equipment are developing in the direction of low voltage, high current, small size, light weight, high efficiency, thinness and integration, including for the central processing unit (Central Processing Unit) of computers. , CPU) and Digital Signal Processing (Digital Signal Processing, DSP) and other high-precision, high-speed microprocessors to provide precision power supply voltage adjustment modules, as well as widely used in electric vehicles,...

Claims

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Application Information

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IPC IPC(8): H01F27/24H01F27/245H01F27/255H01F27/28
CPCH01F27/24H01F27/245H01F27/255H01F27/2823H01F27/2847
Inventor 杨玉岗
Owner 杨玉岗
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