Multiphase direct-current uncoupling integrated inductor

Abstract

The invention relates to a multiphase direct-current uncoupling integrated inductor which comprises an iron core, inductive windings and magnetic barriers. The iron core of a vertical structure is formed by laminating laminations. The n-phase inductive windings are laid on n iron core columns on the two sides of the iron core respectively. The n magnetic barriers are arranged in the vertical structure of the iron core. The n magnetic barriers are located over the n-phase inductive windings. Anti-saturation air gaps in the iron core are used as the magnetic barriers at the same time, the numerical values of the magnetic barriers are reasonably selected, magnetic flux linkages generated by the inductive windings are separated, and the uncoupling between a plurality of inductor bodies of the same iron core is achieved. The problems that according to the independent inductor bodies, when each inductor body is wound by one independent magnetic core, the number of the magnetic cores is large, and the size is larger are solved. Due to the adoption of the multiphase direct-current uncoupling integrated inductor, the size of the magnetic core is reduced, the size and the weight of the inductor are reduced, meanwhile, the cost of the inductor is greatly reduced, and the more the number of phases of the uncoupling direct-current integrated inductor is, the more obvious the benefits are.

Description

technical field [0001] The invention relates to an inductor, in particular to a multi-phase DC non-coupling integrated inductor. Background technique [0002] In modern power electronic equipment, many independent DC inductors are often required, such as multiple DC conversion circuits, which require multiple independent inductors. However, when each inductor is wound with a separate magnetic core, the number of magnetic cores is large, which increases the size of the device. Compared with multiple independent inductors, multi-phase DC integrated inductors have advantages such as small size and light weight, and will be widely used. [0003] As we all know, the magnetic field can flow through the non-magnetic medium, which makes the decoupling and isolation of the magnetic circuit relatively complicated than the circuit. Therefore, the DC multi-phase uncoupled DC integrated inductor has certain technical advantages. This multi-phase non-coupling DC integrated inductor ado...

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Problems solved by technology

[0005] The present invention is aimed at the problem of large volume and heavy equipment caused by inductance in the use of multiple independent inductance equipment, and proposes a multi-phase DC non-coupling integrated inductor, which uses the anti-saturation air gap of the iron core structure as a magnetic barrier at the same time, Reasonably select the magnetic barrier value to isolate the flux linkage generated by each inductor winding, and realize the decoupling between multiple inductors of the same core

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