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Amorphous magnetic material high-frequency transformer iron core and manufacturing method thereof

A technology of high-frequency transformers and magnetic materials, applied in the field of high-frequency transformers, can solve the problems of fragility, increase the cost of use, and brittle texture, and achieve the effects of improving the working magnetic flux density, being conducive to miniaturization, and improving power density.

Pending Publication Date: 2021-10-01
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When ferrite is used in 1kHz-200kHz high-frequency power supply, due to the low saturation magnetic flux density and low volume specific power density, it is not conducive to the miniaturization of equipment
Its brittle and fragile characteristics make the high-frequency transformer made of ferrite easy to damage during transportation, and it is necessary to use better protective materials for the device, which increases the cost of use

Method used

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  • Amorphous magnetic material high-frequency transformer iron core and manufacturing method thereof
  • Amorphous magnetic material high-frequency transformer iron core and manufacturing method thereof
  • Amorphous magnetic material high-frequency transformer iron core and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0032] The original width of amorphous ribbon 142mm cross cut single length of 142mm square piece of amorphous material. The cut single sheets 600-2000 amorphous material are laminated together, by vacuum impregnation techniques thermosetting resin is pressed into the gap between the single sheets of amorphous material.

[0033] Thermosetting resin composed of the following components: 84 parts of a bisphenol A type epoxy resin, 12 parts of butyl glycidyl ether, 1 part of 3-aminopropyl triethoxysilane, 3 parts of diethyl tetramethyl imidazole ; bisphenol A type epoxy, butyl glycidyl ether, and 3-aminopropyl triethoxysilane mixing evenly, tetramethyl diethyl imidazole was heated to 50 ℃, and the mixture was stirred uniformly and in vacuo defoaming.

[0034] The amorphous material with a wire cutting block is cut E-shaped core, such image 3 , In which an uneven portion, a smooth portion 2, 3 is the convex portion, a concave portion 4, wire cutting molybdenum wire diameter of 180um, ...

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Abstract

The invention relates to the technical field of high-frequency transformers, and particularly relates to an amorphous magnetic material high-frequency transformer iron core and a manufacturing method thereof. The amorphous magnetic material high-frequency transformer iron core comprises a plurality of same amorphous magnetic material sheets, the amorphous magnetic material sheets are stacked into an amorphous magnetic material block, and the contact surfaces of every two adjacent amorphous magnetic material sheets are coated with a thermosetting resin composition. The manufacturing process comprises the working procedures of strip shearing, iron core forming, heating curing, cutting, grinding, forming and the like, on one hand, the amorphous magnetic material high-frequency transformer iron core can improve the working magnetic flux density applied to a high-frequency transformer of 10 kHz to 200 kHz, the power density of the high-frequency transformer is remarkably improved, and equipment miniaturization is facilitated; and on the other hand, the amorphous material has better toughness than ferrite and is not easy to damage in the transportation and use processes so that the reliability of equipment is improved.

Description

Technical field [0001] The present invention relates to a high-frequency transformer technology, and particularly relates to a high-frequency magnetic material is an amorphous core transformer and its manufacturing method. Background technique [0002] Amorphous soft magnetic alloy has short-range order disordered long-range structural characteristics that make the microstructure has excellent soft magnetic properties. Amorphous soft magnetic alloy strip is the largest global scale production and application of amorphous alloy material, widely used in power frequency transformers, transformers and electrical and other industries. Performance good market prospect in distribution transformers, rotary wing unmanned aerial vehicles and other fields. [0003] Conventional high-frequency transformers generally used ferrite magnetic material, the main advantage is that the resistivity of the ferrite magnetic material is much greater than the metal, this feature suppresses generation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/26H01F27/245H01F1/153H01F41/02
CPCH01F27/263H01F27/245H01F1/153H01F41/0233H01F41/0206
Inventor 沈军魏宇余得贵谢顺德
Owner SHENZHEN UNIV
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