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Square inkslab type magnetic core

A magnetic core and square inkstone technology, which is applied in the direction of magnetic core/yoke, transformer/inductor magnetic core, inorganic material magnetism, etc., can solve the requirements of high performance of the magnetic core, low saturation magnetic flux density, and outlet mode Single and other problems, to achieve the effect of good DC superposition performance, high saturation magnetic flux density, and multiple outlet methods

Active Publication Date: 2004-12-22
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the miniaturization of inductors and rectifier components, the requirements for magnetic cores are getting higher and higher, and the existing E-type magnetic cores have been unable to meet the requirements due to defects such as large volume, low saturation magnetic flux density, and single outlet method. Various high-performance requirements for magnetic cores under high current

Method used

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  • Square inkslab type magnetic core
  • Square inkslab type magnetic core
  • Square inkslab type magnetic core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Production and fabrication of a square inkstone-shaped magnetic core with a wire outlet direction of 90°

[0029] The square inkstone magnetic core with the outlet direction of 9° is composed of E piece and I piece. In the center of E piece, there is a magnetic column 1 for winding coils. The angle of the coil outlet is set at 9°; , is provided with a notch corresponding to the coil outlet angle of the E piece with a 90° angle.

[0030] The composition formula of the square inkstone magnetic core with the outlet direction of 90 is (weight ratio%):

[0031] Pure iron powder: 58%

[0032] Carbonyl iron powder: 40%

[0033] Resin: 1.8%

[0034] Zinc stearate: 0.2%

[0035] Production process:

[0036] 1. 58% pure iron powder and 40% carbonyl iron powder are supplemented with 1.8% resin and 0.2% zinc stearate by weight, and stirred in a mixer for 30-60 minutes to make a base material.

[0037] 2. Use a 30-100 mesh sieve to gr...

Embodiment 2

[0041] Embodiment 2: Production and fabrication of a square inkstone-shaped magnetic core with an outlet direction of 180°

[0042] The square inkstone magnetic core with the outlet direction of 180 is composed of E piece and I piece. In the center of E piece, there is a magnetic column 1 for winding coils. The angle of the coil outlet is set at 180; , is provided with a notch corresponding to the coil outlet angle of the E piece with an angle of 180°.

[0043] The composition formula of the square inkstone magnetic core with the outlet direction of 180 is (weight ratio%):

[0044] Pure iron powder: 68%

[0045] Carbonyl iron powder: 30%

[0046] Resin: 1.8%

[0047] Zinc stearate: 0.2%

[0048] Production process:

[0049] 1. 68% pure iron powder and 30% carbonyl iron powder are supplemented with 1.8% resin and 0.2% zinc stearate by weight, and stirred in a mixer for 30-60 minutes to make a base material.

[0050] 2. Use a 30-100 mesh sie...

Embodiment 3

[0054] Embodiment 3: Production and fabrication of a square inkstone-shaped magnetic core with an outlet direction of 270

[0055] The square inkstone magnetic core with the outlet direction of 27° is composed of E piece and I piece. In the center of E piece, there is a magnetic column 1 for winding coils. The angle of the coil outlet is set at 27°; , a notch corresponding to the coil outlet angle of 270 is provided with the E piece.

[0056] The composition formula of the square inkstone magnetic core with the outlet direction of 270 is (weight ratio%):

[0057] Pure iron powder: 78%

[0058] Carbonyl iron powder: 20%

[0059] Resin: 1.8%

[0060] Zinc stearate: 0.2%

[0061] Production process:

[0062] 1. 58% pure iron powder and 40% carbonyl iron powder are supplemented with 1.8% resin and 0.2% zinc stearate by weight, and stirred in a mixer for 30-60 minutes to make a base material.

[0063] 2. Use a 30-100 mesh sieve to granulate th...

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Abstract

The invention discloses a square-inkstone type magnetic core, composed of an E-shaped piece and an I-shaped piece, designing four outlet modes on the E-shaped piece at angles of 90 deg. 180 deg., 270 deg. and 360 deg., respectively, and designing the gaps at outlet angles corresponding to those of the E-shaped piece on the I-shaped piece. And it improves component formula and producing technique of magnetic core material, thus effectively enhancing the magnetic property of magnetic cores.

Description

1. Technical field [0001] The invention relates to a magnetic core used in components such as inductance and rectification in electrical equipment, and belongs to the technical field of magnetic material manufacturing. 2. Background technology [0002] The magnetic core is the heart of components such as inductors and rectifiers in electrical equipment. With the miniaturization of inductors and rectifier components, the requirements for magnetic cores are getting higher and higher. However, the existing E-type magnetic cores cannot meet the requirements due to the defects of large volume, low saturation magnetic flux density, and single outlet method. Various high performance requirements for the magnetic core under high current. 3. Contents of the invention [0003] In view of the above-mentioned problems, the purpose of the present invention is to provide a square inkstone-shaped magnetic core with small volume, high saturation ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/14H01F3/00H01F27/24H01F41/02
Inventor 何时金郭晓东周勇明
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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