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An inductor composed of multiple unequal-length air-gap columns

An inductor and column technology, applied in the field of inductors, can solve the problem of fast inductance falling

Active Publication Date: 2021-04-16
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide an inductor composed of a plurality of unequal-length air gap columns, which is used to solve the problem that the inductance drop speed of traditional inductors is too fast

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  • An inductor composed of multiple unequal-length air-gap columns
  • An inductor composed of multiple unequal-length air-gap columns

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Embodiment Construction

[0021] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0022] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to an inductor composed of a plurality of air-gap columns with unequal lengths, and belongs to the technical field of inductors. The sensor is composed of a magnetic core and a winding; the magnetic core is composed of an upper yoke, a lower yoke, a main column and a plurality of side columns; the winding is wound on the main column; a plurality of side columns and the main column are arranged in parallel, and the The two ends are respectively fixed on the upper yoke piece and the lower yoke piece. As the current increases, the inductor in the present invention saturates side columns with different numbers of air gaps in sequence, forming inductance drop, and the speed of inductance drop can be adjusted by changing the number of air gaps in the side columns.

Description

technical field [0001] The invention belongs to the technical field of inductors, and relates to an inductor composed of a plurality of columns with air gaps of unequal lengths. Background technique [0002] With the rapid development of power electronics technology, various power electronic devices are more and more widely used in power systems, transportation, industry and other fields, not only to solve the problem of current harmonics, but also have certain requirements for inductance drop. The traditional inductance formed based on the DC offset curve of magnetic materials has a slow drop speed, and sometimes cannot meet the drop requirements; while the traditional silicon steel sheet air gap structure, the inductance does not drop before the core is saturated, and once the core is saturated, the inductance value Immediately dropped to 10% of the initial inductance, the drop rate is too fast. [0003] Therefore, a new magnetic core structure is needed to form a suitabl...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/245
Inventor 井光辉张鹏何敏唐亮罗彦江吕永军李伟强王晓东冶青学丁学通赵迎朱海鹏石明全焦海波徐泽宇李道远陈惠张霞陈昭明邹劲松
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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