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A new manufacturing method of high-density integrated molded inductor

A manufacturing method and high-density technology, applied in the manufacture of inductors/transformers/magnets, circuits, electrical components, etc., can solve the problems of poor electromagnetic performance of inductors, poor heat dissipation, large size, etc. , small size effect

Active Publication Date: 2016-04-13
POCO HLDG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The invention proposes a method for manufacturing an inductor, which solves the problem of poor electromagnetic performance, low density, large volume, and poor heat dissipation effect of the inductor in the prior art, and solves the damage to the coil caused by the mechanical stress in the original integral molding, that is, it does not damage or destroy the coil. Insulation capacity of the primary coil

Method used

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  • A new manufacturing method of high-density integrated molded inductor

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Embodiment 1

[0044] A method for manufacturing a novel high-density integrated molded inductor, comprising the following steps:

[0045] (1) Through the automatic winding machine, the enameled wire coil is wound in a spiral shape;

[0046] (2) Mechanically compress the first ferromagnetic powder to a density of 6.5g / cm 3 The magnetic core, the first ferromagnetic powder is iron silicon powder;

[0047] (3) packing the magnetic core into the hollow cavity of the enameled wire coil;

[0048] (4) packing the enameled wire coil with the magnetic core into the injection mold;

[0049](5) Mix and stir the modified epoxy silicone resin, mercaptopropylmethyldimethoxysilane, and m-xylylenediamine in a weight ratio of 7:1:2 to obtain a high-temperature resin glue;

[0050] (6) Mix and stir the second ferromagnetic powder and the high-temperature resin glue according to the weight ratio of 94:6 to obtain a magnetic composite material. The second ferromagnetic powder is composed of -100 mesh to 200...

Embodiment 2

[0055] A method for manufacturing a novel high-density integrated molded inductor, comprising the following steps:

[0056] (1) Through the automatic winding machine, the enameled wire coil is wound in a spiral shape;

[0057] (2) The first ferromagnetic powder is mechanically pressed to a density of 6.2g / cm 3 The magnetic core, the first ferromagnetic powder is iron silicon powder;

[0058] (3) packing the magnetic core into the hollow cavity of the enameled wire coil;

[0059] (4) packing the enameled wire coil with the magnetic core into the injection mold;

[0060] (5) Mix and stir the modified epoxy silicone resin, mercaptopropylmethyldimethoxysilane, and m-xylylenediamine in a weight ratio of 75:7:18 to obtain a high-temperature resin glue;

[0061] (6) Mix and stir the second ferromagnetic powder and the high-temperature resin glue in a weight ratio of 9:1 to obtain a magnetic composite material. The second ferromagnetic powder is composed of -100 mesh to 200 mesh, -...

Embodiment 3

[0066] A method for manufacturing a novel high-density integrated molded inductor, comprising the following steps:

[0067] (1) Through the automatic winding machine, the enameled wire coil is wound in a spiral shape;

[0068] (2) Mechanically compress the first ferromagnetic powder to a density of 6.9g / cm 3 The magnetic core, the first ferromagnetic powder is iron silicon powder;

[0069] (3) packing the magnetic core into the hollow cavity of the enameled wire coil;

[0070] (4) packing the enameled wire coil with the magnetic core into the injection mold;

[0071] (5) Epoxy silicone resin, mercaptopropylmethyldimethoxysilane, and m-xylylenediamine are mixed and stirred evenly in a weight ratio of 80:5:15 to obtain a high-temperature resin glue;

[0072] (6) Mix and stir the second ferromagnetic powder and the high-temperature resin glue according to the weight ratio of 88:12 to obtain a magnetic composite material. The second ferromagnetic powder is composed of -100 mesh...

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Abstract

The invention discloses a novel high density integrated electric inductance manufacturing method, which comprises: (1) winding an varnished wire coil into a spiral shape; (2) making first iron magnetic powers into a magnetic core through mechanical pressing; (3) packing the magnetic core into a hollow cavity of the varnished wire coil; (4) packing the varnished wire coil packed with the magnetic core into an injection mold; (5) uniformly mixing and blending resin adhesive, coupling agent and accelerant to obtain high temperature resin adhesive; (6) uniformly mixing and blending the second iron magnetic powers and the high temperature resin adhesive to obtain magnetism composite material; (7) injecting the magnetism composite material into a mold cavity of the injection mold to mold, and solidifying to obtain external magnetic body; and (8) cooling and stripping to obtain molded electric inductance. According to the invention, the volume of the electric inductance manufactured with the method provided herein is small; the density is high; the relative magnetic conductivity is high; the cooling performance is good; the service life is long; the electric inductance is molded as a whole; and the manufacturing method of the electric inductance is simple, thus reducing the production cost.

Description

technical field [0001] The invention relates to the technical field of inductance components, in particular to a method for manufacturing a novel high-density integrally formed inductance. Background technique [0002] With the development of the electronics industry, filters, choke coils, transformers and reactors are widely used in circuit control systems in various switching power supplies, UPS, photovoltaic inverters, wind energy and other power supplies. Filtering, rectification, and inverter can all be applied to inductive components. [0003] The use of inductors or reactors plays a vital role in the development of the modern electronics industry. The components made by traditional techniques are gradually not fully suitable for the development of miniaturization in the future. To develop a high-performance miniaturized inductor or reactor It is of great significance to adapt to the rapid development of modern electronic technology. [0004] The manufacturing proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/00H01F41/02H01F1/147
Inventor 郭雄志肖强阮佳林邱俊刘志达罗涛刘元来
Owner POCO HLDG CO LTD
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