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Inductor, manufacturing method of inducer, and forming die for pressing inductor

A technology of pressing molding and manufacturing methods, which is applied in the manufacture of inductors/transformers/magnets, inductors, fixed inductors, etc., and can solve problems affecting the performance of inductors, affecting the magnetic induction performance of inductors, and mold ejection cracking.

Pending Publication Date: 2017-12-26
ZHUHAI GRP INNOVATION NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above scheme, due to the influence of the coil, the molding density of the hollow coil in the one-piece press-molded inductor is low, which affects the magnetic induction effect and further affects the performance of the inductor.
At the same time, the existing integrated inductor is to put the air-core coil and the magnetic powder into the mold cavity for pressing and molding, then remove the mold and then bake and solidify. The cold pressure is easy to damage the coil insulation and cause the cracking of the mold, which further affects the magnetic induction performance of the inductor.

Method used

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  • Inductor, manufacturing method of inducer, and forming die for pressing inductor
  • Inductor, manufacturing method of inducer, and forming die for pressing inductor
  • Inductor, manufacturing method of inducer, and forming die for pressing inductor

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Embodiment 1

[0051] Such as Figure 10 As shown, an inductor includes a magnet and a coil 3, the magnet includes a magnet prefabricated part 2 and the magnet prefabricated part 2 nested with the coil 3 is placed in a molding die and added with a magnetic material and / or a non-magnetic material for compression molding The magnet press-molded part 1. In the present invention, the magnetic material and / or nonmagnetic material mixture includes carbonyl iron powder or alloy iron powder, resin and lubricant, wherein the weight of the carbonyl iron powder or alloy iron powder accounts for the weight of the magnetic material and / or nonmagnetic material mixture 95-97% of the total. In addition, the magnetic material and / or non-magnetic material can also be one of iron powder, sendust powder, high magnetic flux powder, permalloy powder, ferrite, amorphous and nanocrystalline alloy or any suitable material or Several kinds.

[0052] Such as figure 1 , figure 2As shown, the coil 3 is an air-core...

Embodiment 2

[0065] Such as Figure 11 As shown, an inductor includes a magnet and a coil 3, the magnet includes a magnet prefabricated part 2 and the magnet prefabricated part 2 nested with the coil 3 is placed in a molding die and added with a magnetic material and / or a non-magnetic material for compression molding The magnet press-molded part 1. In the present invention, the magnetic material and / or nonmagnetic material mixture includes carbonyl iron powder or alloy iron powder, resin and lubricant, wherein the weight of the carbonyl iron powder or alloy iron powder accounts for the weight of the magnetic material and / or nonmagnetic material mixture 95-97% of the total. In addition, the magnetic material and / or non-magnetic material can also be one of iron powder, sendust powder, high magnetic flux powder, permalloy powder, ferrite, amorphous and nanocrystalline alloy or any suitable material or Several kinds.

[0066] Such as image 3 , Figure 4 As shown, the coil 3 is an air-cor...

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Abstract

The invention discloses an inductor, a manufacturing method of the inductor, and a forming die for pressing the inductor. The inductor comprises a magnet and a coil, and the magnet comprises a magnet prefabricating and forming part and a magnet pressing forming part which is formed by placing the magnet prefabricating and forming part which is sleeved with the coil into a hot-press forming die and adding a magnetic material and / or non-magnetic material into the mixture to be subjected to dry-type hot-press; the forming die comprises an upper die plate and a lower die plate, an upper die cavity and a lower die cavity are arranged in the upper die plate and the lower die plate respectively, and a heating tube and / or a thermocouple are / is arranged in the upper die plate and the lower die plate. The inductor has the advantages of being good in magnet magnetic inducing effect and good in performance.

Description

technical field [0001] The invention belongs to the field of electronic equipment, and in particular relates to an inductor, a manufacturing method of the inductor, and a molding die for pressing the inductor. Background technique [0002] Inductors are components that can convert electrical energy into magnetic energy and store it. Inductors are similar in construction to transformers, but with only one winding. Inductors have a certain inductance, which only resists changes in current. If the inductor is in a state where there is no current flowing, it will try to block the current flow through it when the circuit is on; if the inductor is in a state where current is passing, it will try to maintain the current when the circuit is off. Inductors are also called chokes, reactors, and dynamic reactors. [0003] Chinese patent application 200710157136.3 discloses an integrated inductor and its manufacturing method. It includes a pressed metal magnetic powder block and an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/04H01F27/29H01F41/00B22F3/03
CPCH01F17/04H01F27/292H01F41/00B22F3/03H01F2017/048
Inventor 苏立良
Owner ZHUHAI GRP INNOVATION NEW MATERIALS TECH CO LTD
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