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Magnetic core for avoiding rapid direct current saturation and attenuation and preparation method thereof

A technology of magnetic core and permeability, applied in magnetic core manufacturing, transformer/inductor core, inductor/transformer/magnet manufacturing, etc., can solve problems such as attenuation and single permeability of magnetic core

Inactive Publication Date: 2018-09-25
INNOTRANS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to solve the problem that the magnetic core in the prior art only has a single magnetic permeability after sintering, and will cause rapid attenuation when the current is saturated.

Method used

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  • Magnetic core for avoiding rapid direct current saturation and attenuation and preparation method thereof
  • Magnetic core for avoiding rapid direct current saturation and attenuation and preparation method thereof
  • Magnetic core for avoiding rapid direct current saturation and attenuation and preparation method thereof

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Embodiment Construction

[0025] Detailed description and technical content of the present invention, now just explain as follows with respect to matching drawing:

[0026] see figure 1 and figure 2 The present invention provides a magnetic core 10 that avoids rapid DC saturation attenuation. The magnetic core 10 is formed by one-time sintering, that is, the magnetic core 10 is formed by integral sintering. The magnetic core 10 has a central column 11, two side columns 12 and a base 13, each of the side columns 12 is arranged at a distance from the central column 11, each of the side columns 12 is parallel to the central column 11, The base 13 is connected to the central column 11 and the two side columns 12 . Further, in the present invention, the central column 11 has a first magnetic permeability, and the two side columns 12 respectively have a second magnetic permeability lower than the first magnetic permeability. Moreover, the base 13 has a first connecting portion 131 connecting the central ...

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Abstract

The invention discloses a magnetic core for avoiding rapid direct current saturation and attenuation and a preparation method thereof. The magnetic core is formed by an integral sintering manner; themagnetic core has a middle column, two side columns and a base; each side column is spaced apart from the middle column at a distance, and is parallel to the middle column; the base is connected to the middle column and the two side columns; the middle column has a first magnetic conductivity, the two side columns have a second magnetic conductivity, and the first magnetic conductivity is less than the second magnetic conductivity; the base has a first interconnecting piece connected to the middle column, two second interconnecting pieces corresponding to the side columns, and two first wing parts which are extended from the first interconnecting piece and connected to the second interconnecting pieces; and the first interconnecting piece and each first wing part have the first magnetic conductivity, and the second interconnecting pieces have second magnetic conductivity.

Description

technical field [0001] The invention relates to a magnetic core which avoids rapid DC saturation attenuation and a preparation method thereof, in particular to a magnetic core with a relatively low magnetic permeability in the central column part after integral sintering and a preparation method thereof. Background technique [0002] In many implementations, the inductor needs to accept a relatively high DC current, such as a current of 10 amperes. Moreover, in addition to the high DC current, the inductor will also be implemented at a high operating frequency. However, an inductor is composed of a winding with at least one turn and a magnetic core (also known as an iron core). The magnetic core generally only has a single magnetic permeability, and when the inductor is implemented in a high DC current, Once the magnetic core enters a saturated state, the overall performance of the inductor will be attenuated, which is not conducive to implementation. [0003] In this regar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F41/02
CPCH01F27/24H01F41/0206
Inventor 周宗汉
Owner INNOTRANS TECH
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