CN105914003B - Inductor and preparation method thereof - Google Patents
Inductor and preparation method thereof Download PDFInfo
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- CN105914003B CN105914003B CN201610395765.9A CN201610395765A CN105914003B CN 105914003 B CN105914003 B CN 105914003B CN 201610395765 A CN201610395765 A CN 201610395765A CN 105914003 B CN105914003 B CN 105914003B
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- magnaglo
- inductor
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- conducting wire
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- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 82
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 34
- 239000000853 adhesive Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 20
- 230000035699 permeability Effects 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000006247 magnetic powder Substances 0.000 claims description 11
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910000632 Alusil Inorganic materials 0.000 claims description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 5
- 229910052737 gold Inorganic materials 0.000 claims 5
- 239000010931 gold Substances 0.000 claims 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 235000013339 cereals Nutrition 0.000 description 46
- 238000002474 experimental method Methods 0.000 description 16
- 238000004804 winding Methods 0.000 description 16
- 230000008859 change Effects 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 229910001092 metal group alloy Inorganic materials 0.000 description 6
- 229910000676 Si alloy Inorganic materials 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CUSYNMFNZNIMLF-UHFFFAOYSA-N [Ni].[Fe].[Au] Chemical compound [Ni].[Fe].[Au] CUSYNMFNZNIMLF-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
Abstract
The invention relates to a kind of inductor and preparation method thereof, which includes a magnetic substance and a conducting wire.Magnetic substance includes one first Magnaglo and one second Magnaglo, wherein the Vickers hardness of the first Magnaglo is more than the Vickers hardness of the second Magnaglo, and first the average grain diameter of Magnaglo be more than the average grain diameter of the second Magnaglo, the first Magnaglo mixes with the second Magnaglo.
Description
It is on May 27th, 2009 that the present invention, which is the applying date, application No. is 200910143076.9, entitled " inductance
The divisional application of the Chinese patent application of device and its making side ".
Technical field
The present invention relates to a kind of magnetic elements and preparation method thereof, more particularly to a kind of inductor and preparation method thereof.
Background technology
The function of inductor is the electric current in stabilizing circuit and achievees the effect that filtering noise information, acts on and capacitor class
Seemingly, be equally to store, the electric energy in release circuit to adjust the stability of electric current be with electric field (electricity compared to capacitance
Lotus) form store electric energy, inductor is reached in the form of magnetic field.Inductor is upper in application, has the energy of conducting wire
The energy loss (commonly referred to as magnetic loss, core loss) of amount loss and magnetic stamen.
A kind of conducting wire of inductor in existing known techniques be it is interior be embedded in magnetic substance, and form the side of such inductor
Method is first conducting wire to be placed in mold, and the comparable iron powder of particle size with adhesive agent is filled in mold, with cladding
Then conducting wire recycles pressure forming that iron powder is pressed into magnetic substance, later, heat adhesive agent, so that it cures.Due to
Iron powder as magnetic substance inductor in the high frequency of 10KHz or more, magnetic permeability can fall sharply.Therefore, existing known inductor
It can not be as the application of high frequency.
It can be seen that above-mentioned existing inductor and preparation method thereof is upper in product structure, production method and use, it is clear that
There are still there is inconvenient and defect, and need to be further improved.Above-mentioned in order to solve the problems, such as, relevant manufactures there's no one who doesn't or isn't take
Conscientious think of seeks solution, but for a long time has no that applicable design is developed completion always, and common product and method
Not appropriate structure and method can solve the above problems again, this is clearly the problem of correlation dealer is suddenly to be solved.Therefore such as
What can found a kind of new inductor and preparation method thereof, real to belong to one of current important research and development project, also as current industry pole
Need improved target.
Invention content
It is an object of the present invention to overcome defect existing for existing inductor, and a kind of new inductor is provided,
The technical issues of solution is that its magnetic substance is made to contain different hardness and a variety of Magnaglos of different average grain diameters, to promote inductance
The magnetic permeability of device, is very suitable for practicality.
Another object of the present invention is to, overcome defect existing for the production method of existing inductor, and provide a kind of
The production method of new inductor uses a variety of of different hardness and different average grain diameter the technical problem to be solved is that it is made
Magnaglo forms magnetic substance, to promote the magnetic permeability of inductor, thus more suitable for practicality.
The object of the invention to solve the technical problems is realized using following technical scheme.It proposes according to the present invention
A kind of inductor include a magnetic substance and a conducting wire.Magnetic substance includes one first Magnaglo and one second Magnaglo,
The Vickers hardness (Vicker ' s Hardness) of wherein the first Magnaglo is more than the Vickers hardness of the second Magnaglo, and the
The average grain diameter of one Magnaglo is more than the average grain diameter of the second Magnaglo, and the first Magnaglo is mutually mixed with the second Magnaglo
It closes.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
In one embodiment of this invention, the Vickers hardness of the first Magnaglo is greater than or equal to 150, and the second magnetic powder
The Vickers hardness at end is less than or equal to 100.
In one embodiment of this invention, the Vickers hardness of the first Magnaglo is greater than or equal to 250, and the second magnetic powder
The Vickers hardness at end is less than or equal to 80.
In one embodiment of this invention, the average grain diameter of the first Magnaglo is essentially 10 microns to 40 microns.
In one embodiment of this invention, the average grain diameter of the second Magnaglo is less than or equal to 10 microns.
In one embodiment of this invention, the average grain diameter of the second Magnaglo is essentially less than or equal to 4 microns.
In one embodiment of this invention, the average grain diameter of the first Magnaglo and the average grain diameter of the second Magnaglo
Ratio is more than 2.
In one embodiment of this invention, the average grain diameter of the first Magnaglo and the average grain diameter of the second Magnaglo
Ratio is 2.5 to 10.
In one embodiment of this invention, the material of the first Magnaglo includes metal alloy.
In one embodiment of this invention, the material of the first Magnaglo includes siderochrome silicon alloy, iron-nickel alloy, noncrystalline
Alloy, ferro-silicium or iron alusil alloy.
In one embodiment of this invention, the material of the second Magnaglo includes iron or ferroalloy.
In one embodiment of this invention, the material of the first Magnaglo includes amorphous alloy, and the second Magnaglo
Material include iron.
In one embodiment of this invention, the weight of the first Magnaglo and the ratio of the weight of the second Magnaglo are
0.25 to 4.
In one embodiment of this invention, when the material of the first Magnaglo includes amorphous alloy, and the second magnetic powder
When the material at end includes iron, the ratio of the weight of the first Magnaglo and the weight of the second Magnaglo is 0.67 to 1.5.
In one embodiment of this invention, when the material of the first Magnaglo includes siderochrome silicon alloy, and the second magnetic powder
When the material at end includes iron, the ratio of the weight of the first Magnaglo and the weight of the second Magnaglo is 1.5 to 4.
In one embodiment of this invention, inductor further includes an adhesive agent, engages the first Magnaglo and the second magnetic
Property powder, the content of adhesive agent is 2 weight percent (wt%)~3wt% of the total weight of magnetic substance.
In one embodiment of this invention, the material of adhesive agent is thermosetting resin.
In one embodiment of this invention, conducting wire be embedded in one in magnetic substance in bury portion or be wound in magnetic with one
Winding section on property body.
In one embodiment of this invention, magnetic substance using a moulding process (i.e. processing procedure, herein referred to as technique) shape
At the briquetting pressure of moulding process is 6 tons every square centimeter to 11 tons every square centimeter.
In one embodiment of this invention, magnetic substance imposes a heating process, and the temperature of heating process is 300 DEG C or less.
The object of the invention to solve the technical problems is also realized using following technical scheme.It proposes according to the present invention
A kind of production method of inductor is as described below.First, one conducting wire is provided.Then, a mixture is provided, mixture includes one the
One Magnaglo, one second Magnaglo and an adhesive agent, wherein the Vickers hardness of the first Magnaglo is more than the second magnetic powder
The Vickers hardness at end, and the average grain diameter of the first Magnaglo is more than the average grain diameter of the second Magnaglo.Adhesive agent with this
One Magnaglo and the second magnetic powder powder mix.Then, a moulding process is carried out to mixture, it is magnetic to form one
Body.Later, cure adhesive agent.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
In one embodiment of this invention, cure adhesive agent in such a way that one heats, the temperature of heating is 300 DEG C or less.
In one embodiment of this invention, in moulding process, apply a briquetting pressure in mixture, briquetting pressure 6
Every square centimeter to 11 tons of ton is every square centimeter.
In one embodiment of this invention, to mixture carry out moulding process in, magnetic substance coated wire one in bury portion.
In one embodiment of this invention, after curing adhesive agent, a winding section of conducting wire is made to be wound on magnetic substance.
By above-mentioned technical proposal, inductor of the present invention and preparation method thereof at least has following advantages and advantageous effect：
The present invention is to form magnetic substance using the different Magnaglo of average grain diameter, and therefore, in moulding process, average grain diameter is small
Magnaglo can be filled up in the gap between the big Magnaglo of average grain diameter, and so that pressed density increases, and then promote electricity
The magnetic permeability of sensor.In addition, the present invention is to form magnetic substance using the different Magnaglo of hardness, therefore Magnaglo is being molded
Generated strain is greatly reduced in technique, and then can reduce the magnetic loss of the inductor of the present invention.In addition, avoidable couple of the present invention
Inductor carries out high-temperature heat treatment can prevent conducting wire because that can not bear high temperature due to asking for aoxidizing to eliminate the strain of Magnaglo
Topic.
In conclusion inductor of the present invention and preparation method thereof, which includes a magnetic substance and a conducting wire.It is magnetic
Body includes one first Magnaglo and one second Magnaglo, wherein the Vickers hardness of the first Magnaglo is more than the second magnetic powder
The Vickers hardness at end, and the average grain diameter of the first Magnaglo is more than the average grain diameter of the second Magnaglo, the first Magnaglo
It is mixed with the second Magnaglo.The present invention technically has significant progress, and has apparent good effect, really new for one
Grain husk, progress, practical new design.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is painted the sectional view of the inductor of one embodiment of the invention.
Fig. 2A~Fig. 2 D are the process section of the inductor of Fig. 1 of the present invention.
Fig. 3 is painted the schematic diagram of the inductor of another embodiment of the present invention.
Fig. 4 is painted the sectional view of the inductor of further embodiment of this invention.
Fig. 5 A~Fig. 5 C are the process section of the inductor of Fig. 4 of the present invention.
Fig. 6 is painted the schematic diagram of the inductor of yet another embodiment of the invention.
When Fig. 7 is painted the ratio change of the first Magnaglo and the second Magnaglo in magnetic substance, inductor is at two kinds
The variation situation schematic diagram of inductance value under frequency.
When Fig. 8 is painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor is two
The variation situation schematic diagram of inductance value under kind frequency.
Fig. 9 is painted the inductance value change curve of the inductor of the conducting wire using different line footpaths.
When Figure 10 A are painted the ratio change of the first Magnaglo and the second Magnaglo in magnetic substance, the electricity of inductor
The variation situation schematic diagram of inductance value and magnetic volume density.
When Figure 10 B are painted the ratio change of the first Magnaglo and the second Magnaglo in magnetic substance, the magnetic of inductor
The variation situation schematic diagram of property volume density and magnetic permeability.
When Figure 11 A are painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor
Inductance value changes situation, and is painted the inductance value that inductor applies at two kinds under frequency and changes situation schematic diagram.
When Figure 11 B are painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor
Inductance value changes situation, and is painted the inductance value variation situation schematic diagram that inductor is formed by with two kinds of briquetting pressures.
When Figure 12 is painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor is two
The variation situation schematic diagram of inductance value under kind frequency.
100、200、300：Inductor 110,210,310,410：Magnetic substance
112：First Magnaglo 114：Second Magnaglo
116：Adhesive agent 120,320,420：Conducting wire
122、222：Inside bury portion 222a：Bending structure
124、322、422：Winding section 312：Center pillar
314：First plate body 316：Second plate body
312a、312b：End 330：Magnetic material
412：First surface 414：Second surface
416：Perforation 418：Third surface
C：Winding space
D1、D2：Average grain diameter E1, E2：End
G：Slit M：Mixture
S1、S2：Side wall S3：Side
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the inductor that proposes according to the present invention and preparation method thereof its specific implementation mode, structure, side
Method, step, feature and its effect are described in detail as after.
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to the preferable reality of schema
Applying in the detailed description of example can clearly appear from.By the explanation of specific implementation mode, when predetermined mesh can be reached to the present invention
The technological means taken and effect obtain one more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say
It is bright to be used, it is not intended to limit the present invention.
Fig. 1 is painted the sectional view of the inductor of one embodiment of the invention.Fig. 1 is please referred to, the inductor 100 of the present embodiment wraps
Include a magnetic substance 110 and a conducting wire 120.Magnetic substance 110 includes one first Magnaglo 112 and one second Magnaglo 114,
And first Magnaglo 112 mixed with the second Magnaglo 114.Wherein, magnetic substance 110 is formed using moulding process.The
The Vickers hardness (Vicker ' s Hardness) of one Magnaglo 112 is more than the Vickers hardness of the second Magnaglo 114.First
The Vickers hardness of Magnaglo 112 is, for example, to be greater than or equal to 150, preferably, the Vickers hardness of the first Magnaglo 112 is more than
Or it is equal to 250.The Vickers hardness of second Magnaglo 114 is, for example, to be less than or equal to 100, preferably, the second Magnaglo 114
Vickers hardness be less than or equal to 80.
Average grain diameter (Mean particle diameter) D1 of first Magnaglo 112 is more than the second Magnaglo
The average grain diameter D2 of 114 average grain diameter D2, the second Magnaglo 114 are less than or equal to 10 microns.
The average grain diameter D1 of first Magnaglo 112 substantially can be 10 microns to 40 microns, and the second Magnaglo 114
Average grain diameter D2 substantially may be less than or be equal to 4 microns.The average grain diameter D1 and the second magnetic powder of first Magnaglo 112
The ratio of the average grain diameter D2 at end 114 be, for example, be more than 2, preferably, the ratio of average grain diameter D1 and average grain diameter D2 be 2.5 to
10。
The material of first Magnaglo 112 is, for example, metal alloy, and metal alloy is, for example, siderochrome silicon alloy, the conjunction of iron nickel Gold, noncrystalline (Amorphous) alloy, ferro-silicium or iron alusil alloy.The material of second Magnaglo 114 be, for example, iron or
Ferroalloy.Preferably,The material of first Magnaglo 112 is, for example, amorphous alloy, and the material example of the second Magnaglo 114 Such as it is iron.Magnetic substance 110 further includes an adhesive agent (not being painted), and adhesive agent and the first Magnaglo 112 and the second magnetic powder
End 114 mixes.First Magnaglo 112 can be interconnected with the second Magnaglo 114 by adhesive agent.The material of adhesive agent
Can be thermosetting resin, such as epoxy resin.The content of adhesive agent is 2 weight percent of the total weight of magnetic substance 110
(wt%)~3wt%,The content of first Magnaglo 112 and the second Magnaglo 114 is the total weight of magnetic substance 110 98wt%~97wt%.And the weight ratio of the first Magnaglo is 20wt%~80wt% and the ratio of the second Magnaglo is The ratio of the weight of 80wt%~20wt%, the i.e. weight of the first Magnaglo 112 and the second Magnaglo 114 can be 0.25 to 4。
There are conducting wire 120 interior two ends buried portion 122 and bury portion 122 in respectively being embedded in one in magnetic substance 110 to prolong
Two end E1, E2 of magnetic stamen 110 are stretched out, end E1, E2 are suitable for being electrically connected with other electronic components (not being painted).In detail and
Speech, magnetic substance 110 are a cuboid, and end E1, E2 can extend to magnetism along opposite two side wall S1, S2 of magnetic substance 110 respectively
The side S3 of body 110, thus, which inductor 100 can be electrically connected to other electronic components in a manner of surface mount.It leads
Line 120 is, for example, a copper conductor, and interior portion 122 of burying is, for example, a coiled coil.
It is worth noting that, the average grain diameter and hardness of the first Magnaglo 112 that the present embodiment uses are all higher than second The average grain diameter and hardness of Magnaglo 114, therefore, in moulding process, the second Magnaglo 114 can be easy to fill up in first In gap between Magnaglo 112, and the 112 mutual strain for squeezing and generating of the second Magnaglo 114 and the first Magnaglo Also it can reduce, so that pressed density increase andThe magnetic permeability for being formed by inductor can be promoted, and can avoid using larger
Briquetting pressure and high-temperature heat treatment promote pressed density and magnetic permeability.
Furthermore due to including magnetic loss first Magnaglo 112 low compared with iron powder in magnetic substance 110, therefore compared to existing habit Know all using iron powder as the inductor of magnetic substance, the present embodiment can provide magnetic loss lower inductor, and make inductor Improved efficiency.Furthermore using can comprising the first Magnaglo 112 and the magnetic substance 110 of the second Magnaglo 114 its material cost
Relatively all with metal alloy making magnetic substance, the cost of material is low.
Fig. 2A~Fig. 2 D are the process section of the inductor of Fig. 1 of the present invention.The detailed system of inductor 100 in relation to Fig. 1
Flow is made, Fig. 2A~Fig. 2 D are please referred to.First, Fig. 2A is please referred to, a conducting wire 120 is provided.Then, Fig. 2 B are please referred to, provide one
Mixture M, mixture M include the first Magnaglo 112, the second Magnaglo 114 and adhesive agent (not being painted).Later, please join
According to Fig. 2 C, it is configured at portion 122 is buried in the one of conducting wire 120 in die cavity (not shown), and two end E1, E2 of conducting wire 120 extend
Go out outside die cavity, then mixture M is filled in die cavity.Later, a moulding process is carried out to mixture M, to be formed in a cladding
The magnetic substance 110 in portion 122 is buried, moulding process is, for example, to apply a briquetting pressure to mixture M, to press the first Magnaglo
112, the second Magnaglo 114 and adhesive agent.In the present embodiment, the moulding process carried out to mixture M is pressure forming
Technique, and the pressure for being applied to mixture M is, for example, 6 tons every square centimeter to 11 tons every square centimeter.In other embodiments,
Moulding process also can be the suitable moulding process such as cast shaping process or injection molding.Later, such as with the side of heating
Formula cures adhesive agent, and the temperature heated is equal to or slightly higher than the solidification temperature of adhesive agent, and for example, 300 DEG C hereinafter, be worth note
It anticipates, the temperature of the heating used in the present embodiment is only suitable for solidification adhesive agent.Finally, Fig. 2 D are please referred to, folded end E1,
E2, so that end E1, E2 extend to the side S3 of magnetic substance 110 along opposite two side wall S1, S2 of magnetic substance 110 respectively.
Fig. 3 is the schematic diagram for the inductor for being painted another embodiment of the present invention.Fig. 3 is please referred to, it is in the present embodiment, magnetic
The material of body 210 is identical as the material of magnetic stamen 110 in Fig. 1, and details are not described herein.The inductor 200 of the present embodiment is with Fig. 1's
It is in place of the difference of inductor 100, multiple bending structure 222a can be had by inside burying portion 222, and these bending structures 222a is real
It is generally aligned in the same plane in matter.
Fig. 4 is painted the sectional view of the inductor of further embodiment of this invention.Please refer to Fig. 4, in the present embodiment, magnetic substance
310 material is identical as the material of magnetic stamen 110 in Fig. 1, and details are not described herein.The electricity of the inductor 300 and Fig. 1 of the present embodiment
It is that the magnetic substance 310 of the present embodiment is a drum type structure in place of the difference of sensor 100, and conducting wire 320 is to be located at magnetic substance 310
Outside.The magnetic substance 310 of the present embodiment includes a center pillar 312, one first plate body 314 and one second plate body 316, wherein in
Both ends 312a, 312b of column 312 are separately connected the first plate body 314 and the second plate body 316, and conducting wire 320 is wound in center pillar
On 312.Specifically, a winding space C is formed between the first plate body 314, the second plate body 316 and center pillar 312, and conducting wire
320 have two end E1, E2 and the winding section 322 between two end E1, E2.Winding section 322 is located in winding space C and twines
Be around on center pillar 312, and two end E1, E2 by winding space C internal stretches to winding space C outside, with other electronics
Element (not being painted) is electrically connected.In addition, can also optionally fill a magnetic material 330 or a tree in winding space C
Fat material (not shown), to fill up the winding section 322 of winding space C and coated wire 320.
Fig. 5 A~Fig. 5 C are the process section of the inductor of Fig. 4 of the present invention.The detailed system of inductor 300 in relation to Fig. 4
Flow is made, Fig. 5 A~Fig. 5 C are please referred to.First, Fig. 5 A are please referred to, a mixture M is provided, the material of mixture M is identical to Fig. 2 B
Mixture M material.Then, Fig. 5 B are please referred to, a moulding process are carried out to mixture M, to form magnetic substance 310.At this
In embodiment, moulding process includes pressure molding, cast shaping process or injection molding, and in pressure molding
In, the pressure for being applied to mixture M is, for example, 6 tons every square centimeter to 11 tons every square centimeter.Later, such as with the side of heating
Formula cures adhesive agent (not being painted), and the temperature heated is equal to or slightly higher than the solidification temperature of adhesive agent, for example, 300 DEG C with
Under, it is notable that the temperature of the heating used in the present embodiment is only suitable for solidification adhesive agent.Finally, Fig. 5 C are please referred to, it will
The winding section 322 of conducting wire 320 is wound on magnetic substance 310.
Fig. 6 is painted the schematic diagram of the inductor of yet another embodiment of the invention.Please refer to Fig. 6, in the present embodiment, magnetic substance
410 material is identical as the material of magnetic substance 110 in Fig. 1, and details are not described herein.In the present embodiment, magnetic substance 410 has
One first surface 412, one runs through first surface 412 and second surface relative to the second surface 414 and one of first surface 412
414 perforation 416.Conducting wire 420 is, for example, an additional conductive strips, and conducting wire 420 has two end E1, E2 and is located at two end E1, E2
Between winding section 422.Perforation 416 is run through in winding section 422, and end E1, E2 are respectively along first surface 412 and second surface 414
Extend to a third surface 418 of magnetic substance 410.Third surface 418 is connected between first surface 412 and second surface 414.
The slit G that magnetic substance 410 optionally runs through third surface 418 with one and is connected to perforation 416.
100,300 institute of inductor of the first Magnaglo to different proportion and the second Magnaglo described below
It doesThe result of electrical testing。
【Experiment 1】
The structure of the inductor of experiment 1 is identical to the structure of the inductor 100 of Fig. 1, and the line footpath A of conducting wire 120 is 0.32
The diameter B of millimeter, coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic substance 110 is 11 tons and often puts down
Square centimetre.The main component, average grain diameter and hardness of first Magnaglo and the second Magnaglo used by experiment 1 all arrange in detail
In table 1.
Table 1
As shown in Table 1, the ratio of D1 and D2 is 2.5.Fig. 7 is painted the first Magnaglo and the second Magnaglo in magnetic substance
In ratio change when, the variation situation of inductance value of the inductor under two kinds of frequencies (25KHz and 100KHz).Fig. 7 is please referred to,The inductance value of inductor when the ratio of first Magnaglo is 20wt%~80wt% is all higher than the first Magnaglo or second The inductance value of inductor when the ratio of Magnaglo is 100wt%.Preferably the ratio of the first Magnaglo is The ratio of 60wt% and the second Magnaglo is 40wt%, i.e. the weight of the weight of the first Magnaglo and the second Magnaglo
Ratio is 1.5, eitherThe ratio of first Magnaglo is 60wt%~80wt% and the ratio of the second Magnaglo is 40wt%~20wt%, the i.e. weight of the first Magnaglo and the ratio of the weight of the second Magnaglo are 1.5 to 4。
【Experiment 2】
The structure of the inductor of experiment 2 is identical to the structure of the inductor 100 of Fig. 1, and the line footpath A of conducting wire 120 is 0.32
The diameter B of millimeter, coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic substance 110 is 11 tons and often puts down
Square centimetre.The main component, average grain diameter and hardness of first Magnaglo and the second Magnaglo used by experiment 2 all arrange in detail
In table 2.
Table 2
When Fig. 8 is painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor is in two
The variation situation of inductance value under kind frequency.Fig. 8 is please referred to, when the ratio that the composition of the second Magnaglo is iron and D1 and D2 is
When 10, the inductance value of the inductor when ratio of the first Magnaglo is 20wt%~80wt% be all higher than the first Magnaglo or
The inductance value of inductor when the ratio of second Magnaglo is 100wt%.The preferably ratio of the first Magnaglo
Ratio for 40wt% and the second Magnaglo is 60wt%, i.e. the weight of the weight of the first Magnaglo and the second Magnaglo
Ratio be 0.67 or first the ratio of Magnaglo be 40wt%~60wt% and the ratio of the second Magnaglo is
60wt%~40wt%, the i.e. weight of the first Magnaglo and the ratio of the weight of the second Magnaglo are 0.67 to 1.5.
And when the ratio that the composition of the second Magnaglo is siderochrome silicon alloy and D1 and D2 is 4, the first Magnaglo
The inductance when ratio that the inductance value of inductor when ratio is 20wt%~80wt% is more than the first Magnaglo is 100wt%
The inductance value of device, and the inductance value of inductor when the ratio of the first Magnaglo is 20wt%~40wt% is slightly above the second magnetic
Property powder inductor of ratio when being 100wt% inductance value, it is therefore advantageous to the case where be that the ratio of the first Magnaglo is
The ratio of 20wt%~40wt% and the second Magnaglo is 80wt%~60wt%, the i.e. weight of the first Magnaglo and second
The ratio of the weight of Magnaglo is 0.25 to 0.67.
From the foregoing, it will be observed that with identical first Magnaglo of the second Magnaglo collocation of different average grain diameters, can be put down
Equal grain size is smaller, and the effect for promoting the inductance value of inductor is preferable.
It is real to be carried out containing the magnetic substance of 40 microns of amorphous alloy 40wt% and 4 microns of iron powder 60wt% below
It tests.Table 3 lists the variation situation of magnetic loss, and table 4 lists the variation situation of efficiency, and Fig. 9 is painted the electricity of the conducting wire using different line footpaths
The inductance value change curve of sensor.The frequency of the experiment of table 3 is 300KHz, magnetic induction intensity 30mT.The application electric current of table 4
It is 2 amperes.
Table 3
Table 4
As shown in Table 3, use 40 microns of amorphous alloy for the first Magnaglo in the present embodiment, 4 microns of iron powder
For the second Magnaglo, and the ratio of the first Magnaglo is 40wt%, and the ratio of the second Magnaglo is 60wt%, gained
To magnetic loss can be 100wt% compared with iron powder ratio, amorphous alloy ratio is 100wt% and amorphous alloy ratio is
100wt% (high-temperature heat treatment is carried out after forming technology) is low, and the bigger magnetic loss of briquetting pressure is lower.Therefore, it can be verified that this reality Applying example transmission suitably selects the first Magnaglo of different average grain diameters and hardness and the second Magnaglo magnetic substance that can be not required to It carries out obtaining lower magnetic loss under high-temperature heat treatment, therefore high temperature heat treatment step can be saved, and simplify technique.And using comprising
Its material cost can be first Magnaglo 112 compared with the ratio of the first Magnaglo with the magnetic substance 110 of the second Magnaglo 114
The cost of material is low by 100wt%.
As shown in Table 4,For frequency in 25KHz, the efficiency of the present embodiment inductor is up to 76% or more, and frequency exists
When 300KHz,The efficiency of the present embodiment inductor is up to 90% or more, it is seen that the inductor of the present embodiment has splendid efficiency
Performance.It is notably that briquetting pressure is good in 8.5 tons of efficiency every square centimeter efficiency every square centimeter compared with 11 tons.
As shown in Figure 9, at identical coil diameter B and the number of turns, the line footpath of conducting wire is smaller, and the inductance value of inductor is cured
It is high.Therefore, the inductance value of inductor can be adjusted by the line footpath for changing conducting wire.
【Experiment 3】
The structure of the inductor of experiment 3 is identical to the structure of the inductor 100 of Fig. 1, and the line footpath A of conducting wire 120 is 0.32
The diameter B of millimeter, coil is 2.4 millimeters, and the number of turns of coil is 13.5 circles, and the briquetting pressure of magnetic substance 110 is 11 tons and often puts down
Square centimetre.The main component, average grain diameter and hardness of first Magnaglo and the second Magnaglo used by experiment 3 all arrange in detail
In table 5.
Table 5
As shown in Table 5, the ratio of D1 and D2 is 5.Figure 10 A are painted the first Magnaglo and the second Magnaglo in magnetic substance
In ratio when changing, the variation situation of the inductance value of inductor and magnetic volume density.Figure 10 B are painted the first Magnaglo and
When ratio of two Magnaglos in magnetic substance changes, the magnetic volume density of inductor and the variation situation of magnetic permeability.
Please refer to Figure 10 A and Figure 10 B, the inductance of the inductor when ratio of the first Magnaglo is 20wt%~60wt%
The inductance when ratio that value, magnetic volume density and magnetic permeability are all higher than the first Magnaglo or the second Magnaglo is 100wt%
The inductance value of device, magnetic volume density and magnetic permeability.Preferably the ratio of the first Magnaglo is 40wt% and the second magnetic
Property powder ratio be 60wt%, i.e. the ratio of the weight of the weight of the first Magnaglo and the second Magnaglo is 0.67, or
Person is that the ratio of the first Magnaglo is 40wt%~60wt% and the ratio of the second Magnaglo is 60wt%~40wt%, i.e.,
The weight of first Magnaglo and the ratio of the weight of the second Magnaglo are0.67 to 1.5。
Table 6 list the inductor of the present embodiment in same current (2 amperes), (11 tons every square li of identical briquetting pressure
Rice) and two kinds of frequencies under efficiency performance.
Table 6
As shown in Table 6,The ratio of amorphous alloy be 20wt%~40wt% and the ratio of iron powder be 80wt%~ Inductor when 60wt%, when frequency is in 25KHz, efficiency is up to 75% or more,And frequency, when 300KHz, efficiency is reachable 90% or more, it is seen that there is the inductor of the present embodiment splendid efficiency to show.
【Experiment 4】
The structure of the inductor of experiment 4 is identical to the structure of the inductor 300 of Fig. 4, and the line footpath A of conducting wire 320 is 0.32
The diameter B of millimeter, coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic substance 310 is 8 or 11 tons every
Square centimeter.The main component, average grain diameter and hardness of first Magnaglo and the second Magnaglo used by experiment 4 are all detailed
It is shown in Table 7.
Table 7
As shown in Table 7, the ratio of D1 and D2 is 2.5.Figure 11 A, which are painted, works as the first Magnaglo and the second Magnaglo in magnetic
Property body in ratio when changing, the inductance value of inductor changes situation, and is painted inductor and applies inductance under frequency at two kinds
Value variation situation.When Figure 11 B are painted the change of the ratio when the first Magnaglo and the second Magnaglo in magnetic substance, inductor
Inductance value change situation, and be painted with two kinds of briquetting pressures be formed by inductor inductance value change situation.
By Figure 11 A it is found that the inductance value of the inductor when ratio of the first Magnaglo is 20wt%~80wt% is big The inductance value of inductor when the ratio of the first Magnaglo or the second Magnaglo is 100wt%.Preferably The ratio of one Magnaglo is 60wt% and the ratio of the second Magnaglo is 40wt%, i.e. the weight of the first Magnaglo and the The ratio of the weight of two Magnaglos be 1.5 or first the ratio of Magnaglo be 60wt%~80wt% and the second magnetic Property powder ratio be 40wt%~20wt%, i.e. the weight of the first Magnaglo and the ratio of the weight of the second Magnaglo is 1.5 to 4.In addition, by Figure 11 B it is found that when briquetting pressure is bigger, the magnetic permeability of inductor is bigger.It therefore, can be by being changed to
Type pressure adjusts the magnetic permeability of inductor.
【Experiment 5】
The structure of the inductor of experiment 5 is identical to the structure of the inductor 300 of Fig. 4, and the line footpath A of conducting wire 320 is 0.32
The diameter B of millimeter, coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic substance 310 is 11 tons and often puts down
Square centimetre.The main component, average grain diameter and hardness of first Magnaglo and the second Magnaglo used by experiment 5 all arrange in detail
In table 8.
Table 8
Figure 12 is please referred to, when the ratio that the composition of the second Magnaglo is iron and D1 and D2 is 10, the first Magnaglo
The inductance value of inductor of ratio when being 20wt%~80wt% be all higher than the ratio of the first Magnaglo or the second Magnaglo
The inductance value of inductor when example is 100wt%.PreferablyThe ratio of first Magnaglo is 40wt% and the second magnetic Property powder ratio be 60wt%, i.e. the ratio of the weight of the first Magnaglo and the weight of the second Magnaglo is 0.67, or
Person is that the ratio of the first Magnaglo is 40wt%~60wt% and the ratio of the second Magnaglo is 60wt%~40wt%, i.e.,
The ratio of the weight of first Magnaglo and the weight of the second Magnaglo is 0.67 to 1.5.
And when the ratio that the composition of the second Magnaglo is siderochrome silicon alloy and D1 and D2 is 4, the first Magnaglo
The inductance when ratio that the inductance value of inductor when ratio is 20wt%~80wt% is more than the first Magnaglo is 100wt%
The inductance value of device, and the ratio of the first Magnaglo be 20wt%~40wt% when inductor inductance value be slightly larger than the second magnetic
Property powder ratio be 100wt% when inductor inductance value, therefore,Preferably the ratio of the first Magnaglo is The ratio of 20wt%~40wt% and the second Magnaglo is 80wt%~60wt%, i.e. the weight of the first Magnaglo and second
The ratio of the weight of Magnaglo is 0.25 to 0.67.
From the foregoing, it will be observed that with identical first Magnaglo of the second Magnaglo collocation of different average grain diameters, can be put down
Equal grain size is smaller, and the effect for promoting the inductance value of inductor is preferable.
In conclusion the present invention at least has following advantages：
1. the present invention is to form magnetic substance using the different Magnaglo of average grain diameter, therefore, in moulding process, put down
The equal small Magnaglo of grain size can be filled up in the gap between the big Magnaglo of average grain diameter, and so that pressed density increases,
And then promote the magnetic permeability of inductor.
2. the present invention is to form magnetic substance, and the Magnaglo appearance that average grain diameter is small using the different Magnaglo of hardness
Easily fill up in the gap between the big Magnaglo of average grain diameter, thus Magnaglo forming pressure needed for moulding process with
And generated strain is greatly reduced, and then the magnetic loss of the inductor of the present invention can be reduced.Also, the present invention can avoid to inductance
Device carry out high-temperature heat treatment eliminate the strain of Magnaglo and the problem of can prevent conducting wire from being aoxidized because high temperature can not be born.
3.The present invention is to make magnetic substance using the first Magnaglo and the second Magnaglo, therefore the inductor of the present invention In the case of high-frequency (25KHz or 100KHz), magnetic permeability and corresponding inductance value is more existing known is made of iron powder Magnetic substance is high。
4. the present invention is to make magnetic substance using the first Magnaglo and the second Magnaglo of metal alloy powders,
Material cost can more all with metal alloy powders, to make magnetic substance, the cost of material is low.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the method and technique content using the disclosure above make it is a little more
Equivalent embodiment that is dynamic or being modified to equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the present invention
Technical spirit still falls within technical solution of the present invention to any simple modification, equivalent change and modification made by above example
In the range of.
Claims (12)
1. a kind of inductor, which is characterized in that it includes：
One first Magnaglo；
One second Magnaglo, first Magnaglo are mixed with second Magnaglo, wherein first Magnaglo
The ratio of average grain diameter and the average grain diameter of second Magnaglo is more than 2, and the average grain diameter of second Magnaglo is less than
Or it is equal to 10 microns, the Vickers hardness of first Magnaglo is more than the Vickers hardness of second Magnaglo and has a hardness
Difference；And
One conducting wire with insulating layer, wherein first Magnaglo mixed and second Magnaglo and interior being embedded in wherein
Should with insulating layer conducting wire by the hardness difference can be integrally formed under the fusing point less than the insulating layer of the conducting wire with
A magnetic substance is formed, wherein second Magnaglo is filled up in the gap between the first Magnaglo, to increase the magnetic substance
Density, to promote the magnetic permeability of the inductor.
2. inductor according to claim 1, which is characterized in that the average grain diameter of first Magnaglo is 10 microns
To 40 microns.
3. inductor according to claim 1, which is characterized in that the material of first Magnaglo includes that siderochrome silicon closes
Gold, iron-nickel alloy, amorphous alloy, ferro-silicium or iron alusil alloy.
4. inductor according to claim 1, which is characterized in that the material of second Magnaglo includes that iron or iron close
Gold.
5. inductor according to claim 1, which is characterized in that the material of first Magnaglo includes that noncrystalline closes
Gold, and the material of second Magnaglo includes iron.
6. inductor according to claim 1, which is characterized in that the weight of first Magnaglo and second magnetic powder
The ratio of the weight at end is between 0.25 to 4.
7. inductor according to claim 1, which is characterized in that when the material of first Magnaglo includes that noncrystalline closes
Gold, and when the material of second Magnaglo includes iron, the weight of the weight of first Magnaglo and second Magnaglo
Ratio between 0.67 to 1.5.
8. inductor according to claim 1, which is characterized in that when the material of first Magnaglo includes that siderochrome silicon closes
Gold, and when the material of second Magnaglo includes iron, the weight of the weight of first Magnaglo and second Magnaglo
Ratio between 1.5 to 4.
9. a kind of inductor, which is characterized in that it includes：
One first Magnaglo；
One second Magnaglo, first Magnaglo are mixed with second Magnaglo, wherein first Magnaglo
The ratio of the average grain diameter of average grain diameter and second Magnaglo is more than 2, and the material of second Magnaglo includes iron, this
The Vickers hardness of one Magnaglo is more than the Vickers hardness of second Magnaglo and has a hardness difference；And
One coil, the coil are formed by the conducting wire with insulating layer, wherein first Magnaglo mixed with this
Two Magnaglos and it is interior be embedded in the coil therein can be under the fusing point less than the insulating layer of the conducting wire by the hardness difference
It is integrally formed to form a magnetic substance, wherein second Magnaglo is filled up in the gap between the first Magnaglo, to increase
The density for adding the magnetic substance, to promote the magnetic permeability of the inductor.
10. a kind of inductor, which is characterized in that it includes：
One first Magnaglo；
One second Magnaglo, first Magnaglo are mixed with second Magnaglo, wherein first Magnaglo
The ratio of average grain diameter and the average grain diameter of second Magnaglo between 2.5 to 10, put down by second Magnaglo
Equal grain size is less than or equal to 10 microns, the Vickers hardness of first Magnaglo be more than the Vickers hardness of second Magnaglo and
With a hardness difference；And
One coil, the coil are formed by the conducting wire with insulating layer, wherein first Magnaglo mixed with this
Two Magnaglos and it is interior be embedded in the coil therein can be under the fusing point less than the insulating layer of the conducting wire by the hardness difference
It is integrally formed to form a magnetic substance, wherein second Magnaglo is filled up in the gap between the first Magnaglo, to increase
The density for adding the magnetic substance, to promote the magnetic permeability of the inductor.
11. a kind of inductor, which is characterized in that it includes：
One first Magnaglo；
One second Magnaglo, first Magnaglo are mixed with second Magnaglo, wherein first Magnaglo
The ratio of average grain diameter and the average grain diameter of second Magnaglo is more than 2, and the Vickers hardness of first Magnaglo is more than should
The Vickers hardness of second Magnaglo and have a hardness difference, wherein the average grain diameter of second Magnaglo is less than or waits
In 4 microns；And
One conducting wire with insulating layer, wherein first Magnaglo mixed and second Magnaglo and interior being embedded in wherein
Should with insulating layer conducting wire by the hardness difference can be integrally formed under the fusing point less than the insulating layer of the conducting wire with
A magnetic substance is formed, wherein second Magnaglo is filled up in the gap between the first Magnaglo, to increase the magnetic substance
Density, to promote the magnetic permeability of the inductor.
12. a kind of production method of inductor, which is characterized in that include the following steps：
One conducting wire with insulating layer is provided；
A mixture is provided, which includes：
One first Magnaglo；
One second Magnaglo, first Magnaglo are mixed with second Magnaglo, wherein first Magnaglo
The ratio of average grain diameter and the average grain diameter of second Magnaglo is more than 2, and the Vickers hardness of first Magnaglo is more than should
The Vickers hardness of second Magnaglo and have a hardness difference；And
One adhesive agent is mixed with first Magnaglo and second Magnaglo；
One moulding process is carried out to the conducting wire and the mixture, wherein first Magnaglo mixed and second magnetic powder
It is last and it is interior be embedded in it is therein should conducting wire with insulating layer can be in the molten of the insulating layer less than the conducting wire by the hardness difference
Point is lower to be integrally formed to form a magnetic substance, wherein second Magnaglo is filled up in the gap between the first Magnaglo,
To increase the density of the magnetic substance, to promote the magnetic permeability of the inductor；And
Cure the adhesive agent.
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| KR20130123252A (en) * | 2012-05-02 | 2013-11-12 | 삼성전기주식회사 | Layered inductor and manufacturing method fo the same |
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| KR20150007766A (en) * | 2013-07-12 | 2015-01-21 | 삼성전기주식회사 | Inductor and method for manufacturing the same |
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| JP7078016B2 (en) * | 2019-06-17 | 2022-05-31 | 株式会社村田製作所 | Inductor parts |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101901668A (en) | 2010-12-01 |
| CN105914002B (en) | 2018-08-31 |
| CN101901668B (en) | 2016-07-13 |
| CN105914003A (en) | 2016-08-31 |
| CN105914002A (en) | 2016-08-31 |
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