Integrally molded inductor and manufacturing method thereof

A production method and inductor technology, which is applied in the manufacture of inductors/transformers/magnets, transformer/inductor cores, circuits, etc., can solve problems such as component gaps, achieve improved current resistance performance, stable inductor structure, and increase service time Effect

Active Publication Date: 2016-12-21
重庆金籁科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the shortcomings of open magnetic components, the market often adopts the method of adding a cover outside the magnetic core, commonly known as combined magnetic core components (DrumCore), but this design still has the problem of component gaps (Gap), and this part of the gap Will cause more than 50% magnetic loss

Method used

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  • Integrally molded inductor and manufacturing method thereof
  • Integrally molded inductor and manufacturing method thereof
  • Integrally molded inductor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Copper wire is wound into a coil, and its two ends are electrically connected to the first electrode pin and the second electrode pin respectively; the reduced iron powder and liquid silica gel are mixed evenly according to the weight ratio of 100:2 to form a filler, and the filler is heated at a temperature of 70 Keep warm for 0.5h under the condition of ℃; place the coil connected with the first electrode pin and the second electrode pin in the mold, wherein the inside of the mold is provided with a marking area, inject the filler into the mold, and stamp it to form an integrated inductor. Wherein, the filler forms a magnetic core in the middle of the coil, an outer magnet is formed outside the coil, and the magnetic core and the outer magnet are integrally formed to wrap the coil. Use glass sand to wash the surface of the above-mentioned one-piece inductor for 15 seconds, and then bake the one-piece inductor after sand washing at 78°C for 0.5h; then bake it at 140°C f...

Embodiment 2

[0042] Copper wire is wound into a coil, and its two ends are electrically connected to the first electrode pin and the second electrode pin respectively; carbon-based iron powder, liquid silica gel and γ-aminopropylmethyldimethoxysilane are evenly mixed to obtain a filler , wherein the weight ratio of carbon-based iron powder to liquid silica gel is 100:10, and the weight ratio of γ-aminopropylmethyldimethoxysilane filler to liquid silica gel is 1:99; Keep warm for 0.3h; place the coil connected with the first electrode pin and the second electrode pin in the mold, wherein the inside of the mold is provided with a marking area, inject the filler into the mold, and punch to form an integrated inductor, wherein, The filler forms a magnetic core in the middle of the coil, an outer magnet is formed outside the coil, and the magnetic core and the outer magnet are integrally formed to wrap the coil. Use nylon sand to wash the surface of the above-mentioned one-piece inductor for 30...

Embodiment 3

[0044] Copper wire is wound into a coil, and its two ends are electrically connected to the first electrode pin and the second electrode pin respectively; the iron-based amorphous alloy and liquid silica gel are mixed evenly according to the weight ratio of 100:3 to form a filler, and the filler is heated at temperature Insulate for 1 hour at 76°C; place the coil connected with the first electrode pin and the second electrode pin in a mold, inject the filler into the mold, and stamp it to form an integrated inductor, wherein the filler forms a magnetic coil in the middle of the coil. An outer magnet is formed outside the coil, and the magnetic core and the outer magnet are integrally formed to wrap the coil. Then bake the integrated inductor at 80°C for 0.5h; then bake it at 137°C for 0.52h; finally bake it at 164°C for 1h to completely cure the integrated inductor; then bake the cured integrated inductor The first electrode pin and the second electrode pin are wrapped with ad...

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Abstract

The invention provides a manufacturing method of an integrally molded inductor, and belongs to the technical field of inductance elements. The method comprises the steps of winding a copper wire into a coil and electrically connecting the coil and an electrode pin; mixing a magnetic-conducting material with liquid silicone gel evenly at the mass ratio of 100:(2-15) to form a filler and carrying out heat preservation on the filler under the condition that the temperature is 70-80 DEG C for 0.2-1 hour; and putting the coil connected with the electrode pin into a mold, filling the mold with the filler and carrying out integral stamping to form the integrally molded inductor. The manufacturing method is simple; and the technological process is saved. Furthermore, the invention further provides the integrally molded inductor manufactured by the manufacturing method. The current resistance of the integrally molded inductor is significantly improved; the inductor is stable in structure; the magnetic loss can be reduced; and the noise at work can be reduced.

Description

technical field [0001] The invention relates to the technical field of inductance elements, and in particular to an integrally formed inductor and a manufacturing method thereof. Background technique [0002] The inductance element is an extremely important component in the electronics industry. The traditional inductance element is made by winding a magnetic material element, or wrapping a magnetic material on the outside of the coil to form an inductance element. The traditional inductance element is composed of two magnetic cores, one upper and one lower, and a coil. The lower magnetic core has a groove for accommodating the coil. The upper magnetic core is covered with its corresponding cover, and then bonded by dispensing , baking and other processes, so that the two cores are combined into a cladding body. This kind of inductance element, there will be a gap at the combination of the two magnetic cores, which is a large magnetic permeability defect, which will generat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F27/24
CPCH01F27/24H01F41/02H01F41/0246
Inventor 范超
Owner 重庆金籁科技股份有限公司
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