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Soft magnetic ferrite magnetic core component and formation method thereof

A technology of soft ferrite and magnetic core components, applied in electrical components, magnetic core/yoke, inductor/transformer/magnet manufacturing, etc. Problems such as poor glue removal can improve the grinding efficiency, prevent collision damage, and improve the pass rate.

Inactive Publication Date: 2017-07-21
江西尚朋电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many technical and quality problems occurred subsequently, such as poor degluement of the columns in the fired magnetic core components, or mutual adhesion caused by the dense accumulation of the products during sintering, which caused cracks in the fired magnetic core components. or deformation defects
At the same time, due to the easy collision and damage of the corners during transportation, the product qualification rate is low

Method used

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  • Soft magnetic ferrite magnetic core component and formation method thereof
  • Soft magnetic ferrite magnetic core component and formation method thereof
  • Soft magnetic ferrite magnetic core component and formation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, it is a front view of a soft ferrite magnetic core element blank prepared by the molding method of the present invention. The magnetic core element blank 1 includes a magnetic core bottom plate 2, and two ends of the magnetic core bottom plate 2 are respectively provided with two sides. Leg post 5,501, on the magnetic core bottom plate 2 between both sides leg posts 5,501, be provided with magnetic core middle post 6, described magnetic core middle post 6 is set as garden cylindrical structure, on the magnetic core of garden cylindrical shape The other end of the central column 6 connected to the magnetic core bottom plate 2 is provided with a cross-shaped groove 3 on the top surface of the central column 6 of the magnetic core. An arc-shaped groove 10 is provided on the plane connecting the magnetic core bottom plate 2 and the center column 6 between the two ends of the base plate 2 without side leg columns, and the maximum depth of the arc-s...

Embodiment 2

[0045] The specific embodiment of this implementation is another structural magnetic core component product, using another structural embodiment;

[0046] Such as Figure 8-10 As shown, the two ends of the magnetic core base plate 2 are respectively provided with one leg column 5, 501, and the magnetic core base plate 2 between the leg columns 5, 501 on both sides is provided with a rounded square column magnetic core middle column 601. One end of the column 601 of the square columnar magnetic core is connected to the magnetic core base plate 2, and the longest side of the column 601 of the rounded square columnar magnetic core is smaller than the shortest side of the magnetic core base plate 2, on the magnetic core base plate 2 There are two arc-shaped grooves 1001 at the place where the center column 601 of the rounded square column magnetic core is connected, and a small step 402 is respectively provided at the four corners of the magnetic core bottom plate 2, and the leg c...

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Abstract

The invention provides a formation method of a soft magnetic ferrite magnetic core component. A magnetic core component blank is fabricated by taking soft magnetic ferrite magnetic core powder as a raw material and by employing a die pressing formation process, the magnetic core component blank is sintered to form a soft magnetic ferrite magnetic core component product, the soft magnetic ferrite magnetic core component blank comprises a magnetic core bottom plate, an edge leg post is arranged at each of two end parts of a magnetic core bottom plate, an intermediate post is arranged between the two edge leg posts on the magnetic core bottom plate, the magnetic core component blank is placed in a sintering device for sintering in a mode that the magnetic core component blank is laminated and tightly stacked, and grooves and / or steps or miniature step structures in different shapes are arranged in an intermediate post end surface, the edge leg posts, edge leg post corners and / or a bottom plate end surface of the magnetic core component blank. By arranging miniature steps on the edge leg corners of the magnetic core component, the leg corners can be prevented from being collided and damaged during transportation, and the qualified rate is improved; by arranging the miniature steps on the edge leg posts of the magnetic core component, mutual adhesion and deformation during sintering can be effectively improved; the intermediate post density of the magnetic core component can be improved, and the problem of small size of the intermediate post after sintering is effectively solved; and the grinding surface of the magnetic core component is reduced, the grinding efficiency can be improved, the loss of a grinding wheel is reduced, and the cost is reduced.

Description

[0001] Technical field: [0002] The invention relates to a magnetic core component of an electronic component and a preparation method thereof, in particular to a soft ferrite magnetic core component and a forming method thereof. [0003] Background technique: [0004] As an important basic functional material in the electronic field of the national economy, magnetic materials have become an important support for the development of a country's electronic information industry in terms of output and production technology. Soft magnetic ferrite is an important part of magnetic materials, and its application range is wide. Large and fast growing. High-performance MnZn soft magnetic ferrite core components have the characteristics of low loss, high saturation magnetic flux density and high efficiency at high frequencies, and various inductors, transformers, choke coils, and filters based on them are made , Inverters, etc., are widely used in smart home appliances, communications, ...

Claims

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Application Information

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IPC IPC(8): H01F41/02H01F3/08H01F27/255
CPCH01F41/0246H01F3/08H01F27/255
Inventor 王宏窦海之
Owner 江西尚朋电子科技有限公司
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