CN101901668B - Inducer and preparation method thereof - Google Patents
Inducer and preparation method thereof Download PDFInfo
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- CN101901668B CN101901668B CN200910143076.9A CN200910143076A CN101901668B CN 101901668 B CN101901668 B CN 101901668B CN 200910143076 A CN200910143076 A CN 200910143076A CN 101901668 B CN101901668 B CN 101901668B
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- magnaglo
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- 239000000411 inducer Substances 0.000 title claims abstract description 142
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 230000005291 magnetic effect Effects 0.000 claims abstract description 106
- 238000000034 method Methods 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 239000000853 adhesive Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 27
- 238000000465 moulding Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 21
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910000676 Si alloy Inorganic materials 0.000 claims description 7
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229910000632 Alusil Inorganic materials 0.000 claims description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 5
- 230000008859 change Effects 0.000 description 27
- 238000004804 winding Methods 0.000 description 17
- 238000002474 experimental method Methods 0.000 description 16
- 230000035699 permeability Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000002075 main ingredient Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design 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
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005253 cladding Methods 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
- 230000006698 induction Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Composite Materials (AREA)
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to a kind of inducer and preparation method thereof, this inducer includes a magnetic and a wire.Magnetic 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 mean diameter of Magnaglo more than the mean diameter of the second Magnaglo, the first Magnaglo and the second Magnaglo mix mutually.
Description
Technical field
The present invention relates to a kind of magnetics and preparation method thereof, particularly relate to a kind of inducer and preparation method thereof.
Background technology
The function of inducer is in that the electric current in stabilizing circuit and reaches the effect of filtering noise information, act on similar with capacitor, it is to regulate the stability of electric current equally with the electric energy in storage, release circuit, and compared to electric capacity be the form with electric field (electric charge) to store electric energy, inducer is then reach with the form in magnetic field.Inducer, in application, has the energy loss of wire and the energy loss (being commonly referred to as magnetic loss, coreloss) of magnetic stamen.
The wire of a kind of inducer in existing known techniques is embedded in magnetic in being, and the method forming this kind of inducer is first to be placed in mould by wire, and iron powder suitable for the size with adhesive agent is filled in mould, with coated wire, then, iron powder is pressed into magnetic by recycling pressure forming, afterwards, heating adhesive agent, so that it solidifies.Owing to the inducer using iron powder as magnetic is when the high frequency of more than 10KHz, permeability can fall sharply.Therefore, existing known inducer cannot as the application of high frequency.
As can be seen here, above-mentioned existing inducer and preparation method thereof is in product structure, manufacture method and use, it is clear that has still suffered from inconvenience and defect, and has urgently been further improved.In order to solve above-mentioned Problems existing, relevant manufactures there's no one who doesn't or isn't seeks solution painstakingly, but have no applicable design for a long time to be developed always, and common product and method do not have appropriate structure and method to can solve the problem that the problems referred to above, this is clearly the anxious problem being intended to solve of relevant dealer.Therefore how to found a kind of new inducer and preparation method thereof, one of current important research and development problem of real genus, also become the target that current industry pole need to be improved.
Summary of the invention
It is an object of the invention to, overcoming the defect that existing inducer exists, and provide a kind of new inducer, to be solved technical problem is that makes its magnetic contain different hardness and the multiple Magnaglo of different mean diameter, to promote the permeability of inducer, it is very suitable for practicality.
Another object of the present invention is to, overcome the defect that the manufacture method of existing inducer exists, and the manufacture method of a kind of new inducer is provided, to be solved technical problem is that makes it adopt the multiple Magnaglo of different hardness and different mean diameter to form magnetic, to promote the permeability of inducer, thus more suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of inducer proposed according to the present invention includes a magnetic and a wire.Magnetic includes one first Magnaglo and one second Magnaglo, wherein the Vickers hardness (Vicker ' sHardness) of the first Magnaglo is more than the Vickers hardness of the second Magnaglo, and first the mean diameter of Magnaglo more than the mean diameter of the second Magnaglo, the first Magnaglo and the second Magnaglo mix mutually.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In one embodiment of this invention, the Vickers hardness of the first Magnaglo is more than or equal to 150, and the Vickers hardness of the second Magnaglo is less than or equal to 100.
In one embodiment of this invention, the Vickers hardness of the first Magnaglo is more than or equal to 250, and the Vickers hardness of the second Magnaglo is less than or equal to 80.
In one embodiment of this invention, the mean diameter of the first Magnaglo is essentially 10 microns to 40 microns.
In one embodiment of this invention, the mean diameter of the second Magnaglo is less than or equal to 10 microns.
In one embodiment of this invention, the mean diameter of the second Magnaglo is essentially less than or equal to 4 microns.
In one embodiment of this invention, the mean diameter of the first Magnaglo and the ratio of the mean diameter of the second Magnaglo are more than 2.
In one embodiment of this invention, the mean diameter of the first Magnaglo is 2.5 to 10 with the ratio of the mean diameter of the second Magnaglo.
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, amorphous alloy, ferro-silicium or ferrum alusil alloy.
In one embodiment of this invention, the material of the second Magnaglo includes ferrum or ferroalloy.
In one embodiment of this invention, the material of the first Magnaglo includes amorphous alloy, and the material of the second Magnaglo includes ferrum.
In one embodiment of this invention, the weight of the first Magnaglo is 0.25 to 4 with the ratio of the weight of the second Magnaglo.
In one embodiment of this invention, when the material of the first Magnaglo includes amorphous alloy, and when the material of the second Magnaglo includes ferrum, the ratio of the weight of the weight of the first Magnaglo and 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 when the material of the second Magnaglo includes ferrum, the ratio of the weight of the weight of the first Magnaglo and the second Magnaglo is 1.5 to 4.
In one embodiment of this invention, inducer more includes an adhesive agent, and it engages the first Magnaglo and the second Magnaglo, and the content of adhesive agent is 2 percentage by weights (the wt%)～3wt% of the gross weight of magnetic.
In one embodiment of this invention, the material of adhesive agent is thermosetting resin.
In one embodiment of this invention, wire buries portion or has a winding section being wound on magnetic in having in one to be embedded in magnetic.
In one embodiment of this invention, magnetic utilizes a moulding process (i.e. processing procedure, herein referred to as technique) to be formed, and 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 imposes a heating technique, and the temperature of heating technique is less than 300 DEG C.
The object of the invention to solve the technical problems also realizes by the following technical solutions.Manufacture method according to a kind of inducer of present invention proposition is as described below.First, it is provided that a wire.Then, one mixture is provided, mixture includes one first Magnaglo, one second Magnaglo and an adhesive agent, and wherein the Vickers hardness of the first Magnaglo is more than the Vickers hardness of the second Magnaglo, and the mean diameter of the first Magnaglo is more than the mean diameter of the second Magnaglo.Adhesive agent mixes mutually with this first Magnaglo and this second magnetic powder powder.Then, mixture is carried out a moulding process, to form a magnetic.Afterwards, adhesive agent is solidified.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In one embodiment of this invention, solidifying adhesive agent in the way of a heating, the temperature of heating is less than 300 DEG C.
In one embodiment of this invention, in moulding process, applying a briquetting pressure in mixture, briquetting pressure is 6 tons every square centimeter to 11 tons every square centimeter.
In one embodiment of this invention, mixture is shaped in technique, in the one of magnetic coated wire, buries portion.
In one embodiment of this invention, after solidifying adhesive agent, a winding section of wire is made to be wound on magnetic.
By technique scheme, inducer of the present invention and preparation method thereof at least has following advantages and beneficial effect: the present invention adopts the different Magnaglo of mean diameter to form magnetic, therefore, in moulding process, the Magnaglo that mean diameter is little can be filled up in the space between the Magnaglo that mean diameter is big, and pressed density is increased, and then promote the permeability of inducer.Additionally, the present invention adopts the different Magnaglo of hardness to form magnetic, therefore Magnaglo produced strain in moulding process is greatly reduced, and then can reduce the magnetic loss of the inducer of the present invention.Additionally, the present invention can avoid inducer is carried out the problem that high-temperature heat treatment can prevent wire from aoxidizing because bearing high temperature to eliminate the strain of Magnaglo.
In sum, inducer of the present invention and preparation method thereof, this inducer includes a magnetic and a wire.Magnetic 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 mean diameter of Magnaglo more than the mean diameter of the second Magnaglo, the first Magnaglo and the second Magnaglo mix mutually.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, and in order to the above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 illustrates the profile of the inducer of one embodiment of the invention.
Fig. 2 A～Fig. 2 D is the process section of the inducer of Fig. 1 of the present invention.
Fig. 3 illustrates the schematic diagram of the inducer of another embodiment of the present invention.
Fig. 4 illustrates the profile of the inducer of further embodiment of this invention.
Fig. 5 A～Fig. 5 C is the process section of the inducer of Fig. 4 of the present invention.
Fig. 6 illustrates the schematic diagram of the inducer of yet another embodiment of the invention.
When Fig. 7 illustrates the ratio change in magnetic of the first Magnaglo and the second Magnaglo, the change situation schematic diagram of inducer inductance value under two kinds of frequencies.
Fig. 8 illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the change situation schematic diagram of inducer inductance value under two kinds of frequencies.
Fig. 9 illustrates the inductance value change curve of the inducer of the wire adopting different wire diameter.
When Figure 10 A illustrates the ratio change in magnetic of the first Magnaglo and the second Magnaglo, the change situation schematic diagram of the inductance value of inducer and magnetic density.
When Figure 10 B illustrates the ratio change in magnetic of the first Magnaglo and the second Magnaglo, the change situation schematic diagram of the magnetic density of inducer and permeability.
Figure 11 A illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the inductance value change situation of inducer, and illustrates inducer at two kinds of inductance value change situation schematic diagrams applied under frequency.
Figure 11 B illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the inductance value change situation of inducer, and illustrates the inductance value change situation schematic diagram of the inducer formed with two kinds of briquetting pressures.
Figure 12 illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the change situation schematic diagram of inducer inductance value under two kinds of frequencies.
100,200,300: inducer 110,210,310,410: magnetic
112: the first Magnaglo 114: the second Magnaglos
116: adhesive agent 120,320,420,320: wire
122,222: inside bury portion 222a: bending structure
124,322,422,322: winding section 312: center pillar
314: the first plate body 316: the second plate bodys
312a, 312b: end 330: magnetic material
412: first surface 414: second surface
416: perforation 418: the three surface
310: molded body C: winding space
D1, D2: mean diameter E1, E2: end
G: slit M: mixture
S1, S2: sidewall S3: side
Detailed description of the invention
For further setting forth that the present invention reaches technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to inducer and preparation method thereof its detailed description of the invention, structure, method, step, feature and effect thereof of proposing according to the present invention, describe in detail as after.
For the present invention aforementioned and other technology contents, feature and effect, can clearly appear from following cooperation is with reference to the detailed description of graphic preferred embodiment.By the explanation of detailed description of the invention, when can be reach technological means that predetermined purpose takes and effect obtains one more deeply and concrete understanding to the present invention, however institute's accompanying drawings be only to provide with reference to and purposes of discussion, be not used for the present invention is any limitation as.
Fig. 1 illustrates the profile of the inducer of one embodiment of the invention.Refer to Fig. 1, the inducer 100 of the present embodiment includes magnetic 110 and a wire 120.Magnetic 110 includes one first Magnaglo 112 and one second Magnaglo 114, and the first Magnaglo 112 mixes with the second Magnaglo 114 phase.Wherein, magnetic 110 utilizes moulding process to be formed.The Vickers hardness of the first Magnaglo 112 (Vicker ' sHardness) is more than the Vickers hardness of the second Magnaglo 114.The Vickers hardness of the first Magnaglo 112 is such as greater than or equal to 150, it is preferred that, the Vickers hardness of the first Magnaglo 112 is more than or equal to 250.The Vickers hardness of the second Magnaglo 114 is such as less than or equal to 100, it is preferred that, the Vickers hardness of the second Magnaglo 114 is less than or equal to 80.
Mean diameter (Meanparticlediameter) D1 of the first Magnaglo 112 is more than the mean diameter D2 of the second Magnaglo 114, and the mean diameter D2 of the second Magnaglo 114 is less than or equal to 10 microns.
The mean diameter D1 of the first Magnaglo 112 can be substantially 10 microns to 40 microns, and the mean diameter D2 of the second Magnaglo 114 substantially may be less than or is equal to 4 microns.The proportionality of the mean diameter D1 of the first Magnaglo 112 and the mean diameter D2 of the second Magnaglo 114 is as being greater than 2, it is preferred that, the ratio of mean diameter D1 and mean diameter D2 is 2.5 to 10.
The material of the first Magnaglo 112 is such as metal alloy, and metal alloy is such as siderochrome silicon alloy, iron-nickel alloy, noncrystalline (Amorphous) alloy, ferro-silicium or ferrum alusil alloy.The material of the second Magnaglo 114 is such as ferrum or ferroalloy.It is preferred that the material of the first Magnaglo 112 is such as amorphous alloy, and the material of the second Magnaglo 114 is such as ferrum.Magnetic 110 more includes an adhesive agent (not illustrating), and adhesive agent and the first Magnaglo 112 mix with the second Magnaglo 114 phase.First Magnaglo 112 and the second Magnaglo 114 can be bonded with each other by adhesive agent.The material of adhesive agent can be thermosetting resin, for instance epoxy resin.The content of adhesive agent is 2 percentage by weights (the wt%)～3wt% of the gross weight of magnetic 110, the 98wt%～97wt% of the gross weight that content is magnetic 110 of the first Magnaglo 112 and the second Magnaglo 114.And the ratio that the part by weight of the first Magnaglo is 20wt%～80wt% and the second Magnaglo is 80wt%～20wt%, namely the weight of the first Magnaglo 112 can be 0.25 to 4 with the ratio of the weight of the second Magnaglo 114.
Wire 120 bury in having in one to be embedded in magnetic 110 portion 122 and respectively from bury two ends in portion 122 and extend two end E1, E2 of magnetic stamen 110, end E1, E2 are suitable to the electronic component (not illustrating) with other and are electrically connected.Specifically, magnetic 110 is a cuboid, and end E1, E2 can extend to the side S3 of magnetic 110 respectively along relative two sidewall S1, S2 of magnetic 110, consequently, it is possible to inducer 100 mode of surface mount can be electrically connected to other electronic component.Wire 120 is such as a copper conductor, and in bury the coil that portion 122 is such as a winding.
It should be noted that, the mean diameter of the first Magnaglo 112 that the present embodiment adopts and hardness are all higher than mean diameter and the hardness of the second Magnaglo 114, therefore, in moulding process, second Magnaglo 114 can easily be filled up in the space between the first Magnaglo 112, and second the strain that mutually extrudes and produce of Magnaglo 114 and the first Magnaglo 112 also can reduce, so that pressed density increases and can promote the permeability of the inducer formed, and can avoid utilizing bigger briquetting pressure and high-temperature heat treatment to promote pressed density and permeability.
Furthermore, first Magnaglo 112 low compared with iron powder owing to comprising magnetic loss in magnetic 110, therefore compared to existing known whole inducers using iron powder as magnetic, the present embodiment can provide the inducer that magnetic loss is relatively low, and makes the improved efficiency of inducer.Furthermore, the cost of material is low to adopt its material cost of magnetic 110 comprising the first Magnaglo 112 and the second Magnaglo 114 relatively all can make magnetic with metal alloy.
Fig. 2 A～Fig. 2 D is the process section of the inducer of Fig. 1 of the present invention.About the detailed manufacturing process of the inducer 100 of Fig. 1, refer to Fig. 2 A～Fig. 2 D.First, refer to Fig. 2 A, it is provided that a wire 120.Then, refer to Fig. 2 B, it is provided that a mixture M, mixture M includes first Magnaglo the 112, second Magnaglo 114 and adhesive agent (not illustrating).Afterwards, refer to Fig. 2 C, be configured at burying portion 122 in the one of wire 120 in die cavity (not shown), and two end E1, E2 of wire 120 extend outside die cavity, then mixture M is filled in die cavity.Afterwards, mixture M being carried out a moulding process, to form the magnetic 110 burying portion 122 in a cladding, moulding process is such as that mixture M applies a briquetting pressure, with pressing the first Magnaglo the 112, second Magnaglo 114 and adhesive agent.In the present embodiment, the moulding process that mixture M is carried out is pressure molding, and the pressure putting on mixture M is such as 6 tons every square centimeter to 11 tons every square centimeter.In other embodiments, moulding process also can be the moulding process that cast shaping process or jetting formation process etc. are suitable for.Afterwards, for instance in the way of heating, solidify adhesive agent, and the temperature of heating equal to or slightly above the solidification temperature of adhesive agent, for instance be less than 300 DEG C, it is notable that the temperature of the heating adopted in the present embodiment is only suitable to solidify adhesive agent.Finally, refer to Fig. 2 D, folded end E1, E2, so that end E1, E2 extend to the side S3 of magnetic 110 respectively along relative two sidewall S1, S2 of magnetic 110.
Fig. 3 is the schematic diagram of the inducer illustrating another embodiment of the present invention.Refer to Fig. 3, in the present embodiment, the material of magnetic 210 is identical with the material of the magnetic stamen 110 in Fig. 1, does not repeat them here.The inducer 200 of the present embodiment is in that with the difference part of the inducer 100 of Fig. 1, inside buries portion 222 and can have multiple bending structure 222a, and these bending structures 222a is positioned essentially at same plane.
Fig. 4 illustrates the profile of the inducer of further embodiment of this invention.Refer to Fig. 4, in the present embodiment, the material of magnetic 310 is identical with the material of the magnetic stamen 110 in Fig. 1, does not repeat them here.The inducer 300 of the present embodiment and the difference part of the inducer 100 of Fig. 1 are in that the magnetic 310 of the present embodiment is a drum type structure, and wire 320 is in outside magnetic 310.The magnetic 310 of the present embodiment includes center pillar 312,1 first plate body 314 and one second plate body 316, and wherein two ends 312a, 312b of center pillar 312 connects the first plate body 314 and the second plate body 316 respectively, and wire 320 is wound on center pillar 312.Specifically, form a winding space C between first plate body the 314, second plate body 316 and center pillar 312, and wire 320 has two end E1, E2 and is positioned at the winding section 322 between two end E1, E2.Winding section 322 is positioned at winding space C and is wound on center pillar 312, and two end E1, E2 are by extending to outside winding space C inside winding space C, to be electrically connected with other electronic component (not illustrating).Additionally, also can optionally fill magnetic material 330 or a resin material (not shown) in winding space C, to fill up the winding section 322 of winding space C coated wire 320.
Fig. 5 A～Fig. 5 C is the process section of the inducer of Fig. 4 of the present invention.About the detailed manufacturing process of the inducer 300 of Fig. 4, refer to Fig. 5 A～Fig. 5 C.First, refer to Fig. 5 A, it is provided that a mixture M, the material of mixture M is same as the material of the mixture M of Fig. 2 B.Then, refer to Fig. 5 B, mixture M is carried out a moulding process, to form magnetic 310.In the present embodiment, moulding process includes pressure molding, cast shaping process or jetting formation process, and in pressure molding, the pressure putting on mixture M is such as 6 tons every square centimeter to 11 tons every square centimeter.Afterwards, such as in the way of heating, solidify adhesive agent (not illustrating), and the temperature of heating equal to or slightly above the solidification temperature of adhesive agent, for instance be less than 300 DEG C, it should be noted that the temperature of the heating adopted in the present embodiment is only suitable to solidify adhesive agent.Finally, refer to Fig. 5 C, the winding section 322 of wire 320 is wound on magnetic 310.
Fig. 6 illustrates the schematic diagram of the inducer of yet another embodiment of the invention.Refer to Fig. 6, in the present embodiment, the material of magnetic 410 is identical with the material of the magnetic 110 in Fig. 1, does not repeat them here.In the present embodiment, magnetic 410 has a first surface 412, and runs through the perforation 416 of first surface 412 and second surface 414 relative to the second surface 414 and of first surface 412.Wire 420 is such as an additional conductive strips, and wire 420 has two end E1, E2 and is positioned at the winding section 422 between two end E1, E2.Perforation 416 is run through in winding section 422, and end E1, E2 extend to one the 3rd surface 418 of magnetic 410 respectively along first surface 412 and second surface 414.3rd surface 418 is connected between first surface 412 and second surface 414.Magnetic 410 optionally has one and runs through the 3rd surface 418 the slit G connected with perforation 416.
The result of the testing electrical property that the inducer 100,300 of the first Magnaglo and the second Magnaglo to having different proportion described below does.
[experiment 1]
The structure of the inducer of experiment 1 is same as the structure of the inducer 100 of Fig. 1, and the wire diameter A of wire 120 is 0.32 millimeter, and the diameter B of coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic 110 is 11 tons every square centimeter.The first Magnaglo and the main component of the second Magnaglo, mean diameter and hardness that experiment 1 adopts are listed in table 1 all in detail.
Table 1
| Main Ingredients and Appearance | Mean diameter (D50) | Hardness (Hv) | |
| First Magnaglo | Ferrum-chromium-silicon | 10μm | 250 |
| Second Magnaglo | Ferrum | 4μm | 30～80 |
As shown in Table 1, the ratio of D1 and D2 is 2.5.When Fig. 7 illustrates the ratio change in magnetic of the first Magnaglo and the second Magnaglo, the change situation of inducer inductance value under two kinds of frequencies (25KHz and 100KHz).Refer to Fig. 7, the ratio of the first Magnaglo is the inductance value that ratio is inducer during 100wt% that the inductance value of inducer during 20wt%～80wt% is all higher than the first Magnaglo or the second Magnaglo.Preferably the ratio of the first Magnaglo is the ratio of 60wt% and the second Magnaglo is 40wt%, namely the weight of the first Magnaglo is 1.5 with the ratio of the weight of the second Magnaglo, or first the ratio that ratio is 60wt%～80wt% and the second Magnaglo of Magnaglo be 40wt%～20wt%, namely the weight of the first Magnaglo is 1.5 to 4 with the ratio of the weight of the second Magnaglo.
[experiment 2]
The structure of the inducer of experiment 2 is same as the structure of the inducer 100 of Fig. 1, and the wire diameter A of wire 120 is 0.32 millimeter, and the diameter B of coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic 110 is 11 tons every square centimeter.The first Magnaglo and the main component of the second Magnaglo, mean diameter and hardness that experiment 2 adopts are listed in table 2 all in detail.
Table 2
| Main Ingredients and Appearance | Mean diameter (D50) | Hardness (Hv) | |
| First Magnaglo | Amorphous alloy | 40μm | 900～1,000 |
| Second Magnaglo | Ferrum | 4μm | 30～80 |
| Second Magnaglo | Ferrum-chromium-silicon | 10μm | 250 |
Fig. 8 illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the change situation of inducer inductance value under two kinds of frequencies.Refer to Fig. 8, when the ratio that composition is ferrum and D1 and D2 of the second Magnaglo is 10, the ratio of the first Magnaglo is the inductance value that ratio is inducer during 100wt% that the inductance value of inducer during 20wt%～80wt% is all higher than the first Magnaglo or the second Magnaglo.Preferably the ratio of the first Magnaglo is the ratio of 40wt% and the second Magnaglo is 60wt%, namely the weight of the first Magnaglo is 0.67 with the ratio of the weight of the second Magnaglo, or first the ratio that ratio is 40wt%～60wt% and the second Magnaglo of Magnaglo be 60wt%～40wt%, namely the weight of the first Magnaglo is 0.67 to 1.5 with the ratio of the weight of the second Magnaglo.
And when the ratio that composition is siderochrome silicon alloy and D1 and D2 of the second Magnaglo is 4, the ratio of the first Magnaglo is the inductance value inductance value that ratio is inducer during 100wt% more than the first Magnaglo of inducer during 20wt%～80wt%, and the inductance value that the ratio of the first Magnaglo is inducer during 20wt%～40wt% is slightly above the inductance value that ratio is inducer during 100wt% of the second Magnaglo, therefore, preferably the ratio of the first Magnaglo is the ratio of 20wt%～40wt% and the second Magnaglo is 80wt%～60wt%, namely the weight of the first Magnaglo is 0.25 to 0.67 with the ratio of the weight of the second Magnaglo.
From the foregoing, it will be observed that with identical the first Magnaglo of the second Magnaglo collocation of different mean diameters, can obtain mean diameter more little, the effect of the inductance value promoting inducer is better.
Test with the magnetic of the iron powder 60wt% containing amorphous alloy 40wt% and 4 micron of 40 microns below.The change situation of magnetic loss listed by table 3, and the change situation of efficiency listed by table 4, and Fig. 9 illustrates the inductance value change curve of the inducer of the wire adopting different wire diameter.The frequency of the experiment of table 3 is 300KHz, and magnetic induction is 30mT.The applying electric current of table 4 is 2 amperes.
Table 3
Table 4
| Briquetting pressure 11 (tons every square centimeter) | Briquetting pressure 8.5 (tons every square li Rice) | |
| During 25KHz, efficiency (%) | 76.59 | 77.28 |
| During 300KHz, efficiency (%) | 90.18 | 90.09 |
As shown in Table 3, the amorphous alloy adopting 40 microns in the present embodiment is the first Magnaglo, the iron powder of 4 microns is the second Magnaglo, and first the ratio of Magnaglo be 40wt%, and the ratio of the second Magnaglo is 60wt%, obtained magnetic loss can iron powder ratio to be 100wt%, amorphous alloy ratio be 100wt% and amorphous alloy ratio be relatively that 100wt% (carrying out high-temperature heat treatment after forming technology) is low, and the more big magnetic loss of briquetting pressure is more low.Therefore, it can be verified that the present embodiment can not need to carry out obtaining under high-temperature heat treatment relatively low magnetic loss through the first Magnaglo and the second Magnaglo magnetic suitably selecting different mean diameter and hardness, therefore can save high temperature heat treatment step, Simplified flowsheet.And adopting its material cost of magnetic 110 comprising the first Magnaglo 112 and the second Magnaglo 114 can be that the cost of material is low for 100wt% compared with the ratio of the first Magnaglo.
As shown in Table 4, frequency is when 25KHz, and the efficiency of the present embodiment inducer is up to more than 76%, and frequency is when 300KHz, and the efficiency of the present embodiment inducer is up to more than 90%, it is seen that the inducer of the present embodiment has splendid efficiency performance.Notably, briquetting pressure is good in efficiency compared with 11 tons every square centimeter of the efficiency of 8.5 tons every square centimeter.
As shown in Figure 9, under identical coil diameter B with the number of turns, the wire diameter of wire is less, and the inductance value of inducer is higher.Therefore, the inductance value of inducer can be adjusted by the wire diameter changing wire.
[experiment 3]
The structure of the inducer of experiment 3 is same as the structure of the inducer 100 of Fig. 1, and the wire diameter A of wire 120 is 0.32 millimeter, and the diameter B of coil is 2.4 millimeters, and the number of turns of coil is 13.5 circles, and the briquetting pressure of magnetic 110 is 11 tons every square centimeter.The first Magnaglo and the main component of the second Magnaglo, mean diameter and hardness that experiment 3 adopts are listed in table 5 all in detail.
Table 5
| Main Ingredients and Appearance | Mean diameter (D50) | Hardness (Hv) | |
| First Magnaglo | Amorphous alloy | 20μm | 900～1,000 |
| Second Magnaglo | Ferrum | 4μm | 30～80 |
As shown in Table 5, the ratio of D1 and D2 is 5.When Figure 10 A illustrates the ratio change in magnetic of the first Magnaglo and the second Magnaglo, the change situation of the inductance value of inducer and magnetic density.Figure 10 B illustrates ratio in magnetic of the first Magnaglo and the second Magnaglo when changing, the magnetic density of inducer and the change situation of permeability.
Refer to Figure 10 A and Figure 10 B, the ratio of the first Magnaglo is that to be all higher than the ratio of the first Magnaglo or the second Magnaglo be the inductance value of inducer during 100wt%, magnetic density and permeability for the inductance value of inducer during 20wt%～60wt%, magnetic density and permeability.Preferably the ratio of the first Magnaglo is the ratio of 40wt% and the second Magnaglo is 60wt%, namely the weight of the first Magnaglo is 0.67 with the ratio of the weight of the second Magnaglo, or first the ratio that ratio is 40wt%～60wt% and the second Magnaglo of Magnaglo be 60wt%～40wt%, namely the weight of the first Magnaglo is 0.67 to 1.5 with the ratio of the weight of the second Magnaglo.
The performance of the efficiency under same current (2 amperes), identical briquetting pressure (11 tons every square centimeter) and two kinds of frequencies of the inducer of the present embodiment listed by table 6.
Table 6
| Amorphous alloy 20% + iron powder 80% | Amorphous alloy 40% + iron powder 60% | |
| During 25KHz, efficiency (%) | 75.44 | 75.57 |
| During 300KHz, efficiency (%) | 90.9 | 90.61 |
As shown in Table 6, the ratio of amorphous alloy is the ratio of 20wt%～40wt% and iron powder is inducer during 80wt%～60wt%, frequency in 25KHz time, efficiency is up to more than 75%, and frequency is when 300KHz, efficiency is up to more than 90%, it is seen that the inducer of the present embodiment has splendid efficiency performance.
[experiment 4]
The structure of the inducer of experiment 4 is same as the structure of the inducer 300 of Fig. 4, and the wire diameter A of wire 320 is 0.32 millimeter, and the diameter B of coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic 310 is 8 or 11 tons every square centimeter.The first Magnaglo and the main component of the second Magnaglo, mean diameter and hardness that experiment 4 adopts are listed in table 7 all in detail.
Table 7
| Main Ingredients and Appearance | Mean diameter (D50) | Hardness (Hv) | |
| First Magnaglo | Ferrum-chromium-silicon | 10μm | 250 9 --> |
| Second Magnaglo | Ferrum | 4μm | 30～80 |
As shown in Table 7, the ratio of D1 and D2 is 2.5.Figure 11 A illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the inductance value change situation of inducer, and illustrates inducer two kinds of inductance value change situations applied under frequency.Figure 11 B illustrates when the first Magnaglo and the second Magnaglo ratio in magnetic changes, the inductance value change situation of inducer, and illustrates the inductance value change situation of the inducer formed with two kinds of briquetting pressures.
By Figure 11 A it can be seen that the inductance value that the ratio of the first Magnaglo is inducer during 20wt%～80wt% is all higher than the inductance value that ratio is inducer during 100wt% of the first Magnaglo or the second Magnaglo.Preferably the ratio of the first Magnaglo is the ratio of 60wt% and the second Magnaglo is 40wt%, namely the weight of the first Magnaglo is 1.5 with the ratio of the weight of the second Magnaglo, or first the ratio that ratio is 60wt%～80wt% and the second Magnaglo of Magnaglo be 40wt%～20wt%, namely the weight of the first Magnaglo is 1.5 to 4 with the ratio of the weight of the second Magnaglo.Additionally, by Figure 11 B it can be seen that when briquetting pressure is bigger, the permeability of inducer is bigger.Therefore, the permeability of inducer can be adjusted by change briquetting pressure.
[experiment 5]
The structure of the inducer of experiment 5 is same as the structure of the inducer 300 of Fig. 4, and the wire diameter A of wire 320 is 0.32 millimeter, and the diameter B of coil is 2.4 millimeters, and the number of turns of coil is 11.5 circles, and the briquetting pressure of magnetic 310 is 11 tons every square centimeter.The first Magnaglo and the main component of the second Magnaglo, mean diameter and hardness that experiment 5 adopts are listed in table 8 all in detail.
Table 8
| Main Ingredients and Appearance | Mean diameter (D50) | Hardness (Hv) | |
| First Magnaglo | Amorphous alloy | 40μm | 900～1,000 |
| Second Magnaglo | Ferrum | 4μm | 30～80 |
| Second Magnaglo | Ferrum-chromium-silicon | 10μm | 250 |
Refer to Figure 12, when the ratio that composition is ferrum and D1 and D2 of the second Magnaglo is 10, the ratio of the first Magnaglo is the inductance value that ratio is inducer during 100wt% that the inductance value of inducer during 20wt%～80wt% is all higher than the first Magnaglo or the second Magnaglo.Preferably the ratio of the first Magnaglo is the ratio of 40wt% and the second Magnaglo is 60wt%, namely the weight of the first Magnaglo is 0.67 with the ratio of the weight of the second Magnaglo, or first the ratio that ratio is 40wt%～60wt% and the second Magnaglo of Magnaglo be 60wt%～40wt%, namely the weight of the first Magnaglo is 0.67 to 1.5 with the ratio of the weight of the second Magnaglo.
And when the ratio that composition is siderochrome silicon alloy and D1 and D2 of the second Magnaglo is 4, the ratio of the first Magnaglo is the inductance value inductance value that ratio is inducer during 100wt% more than the first Magnaglo of inducer during 20wt%～80wt%, and the inductance value that the ratio of the first Magnaglo is inducer during 20wt%～40wt% is slightly larger than the inductance value that ratio is inducer during 100wt% of the second Magnaglo, therefore, preferably the ratio of the first Magnaglo is the ratio of 20wt%～40wt% and the second Magnaglo is 80wt%～60wt%, namely the weight of the first Magnaglo is 0.25 to 0.67 with the ratio of the weight of the second Magnaglo.
From the foregoing, it will be observed that with identical the first Magnaglo of the second Magnaglo collocation of different mean diameters, can obtain mean diameter more little, the effect of the inductance value promoting inducer is better.
In sum, the present invention at least has the advantage that
1. the present invention adopts the different Magnaglo of mean diameter to form magnetic, therefore, in moulding process, the Magnaglo that mean diameter is little can be filled up in the space between the Magnaglo that mean diameter is big, and pressed density is increased, and then promote the permeability of inducer.
2. the present invention adopts the different Magnaglo of hardness to form magnetic, and the little Magnaglo of mean diameter easily fills up in the space between the Magnaglo that mean diameter is big, therefore the forming pressure required in moulding process of Magnaglo and produced strain are greatly reduced, and then the magnetic loss of the inducer of the present invention can be reduced.Further, the present invention can avoid inducer is carried out the problem that high-temperature heat treatment can prevent wire from aoxidizing because bearing high temperature to eliminate the strain of Magnaglo.
3. the present invention adopts the first Magnaglo and the second Magnaglo to make magnetic, therefore the inducer of the present invention is in altofrequency (25KHz or 100KHz) when, the more existing known employing iron powder of inductance value of permeability and correspondence makes magnetic height.
4. the present invention adopts the first Magnaglo of metal alloy powders and the second Magnaglo to make magnetic, and its material cost relatively all can make magnetic with metal alloy powders, and the cost of material is low.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, without departing within the scope of technical solution of the present invention, when method and the technology contents of available the disclosure above make a little Equivalent embodiments changing or being modified to equivalent variations, in every case it is the content without departing from technical solution of the present invention, according to any simple modification that above example is made by the technical spirit of the present invention, equivalent variations and modification, all still fall within the scope of technical solution of the present invention.
Claims (23)
1. an inducer, it is characterised in that comprising:
One first Magnaglo；
One second Magnaglo, wherein the Vickers hardness of this first Magnaglo more than the Vickers hardness of this second Magnaglo and has a hardness difference, and the mean diameter of this first Magnaglo is more than the mean diameter of this second Magnaglo, this first Magnaglo mixes mutually with this second Magnaglo；And
One wire with insulating barrier, this first Magnaglo wherein mixed mutually and this second Magnaglo and in be embedded in this wire with insulating barrier therein can be one-body molded to form a magnetic under the fusing point lower than the insulating barrier of this wire by this hardness difference.
2. inducer according to claim 1, it is characterised in that the Vickers hardness of the first wherein said Magnaglo is more than or equal to 150, and the Vickers hardness of this second Magnaglo is less than or equal to 100.
3. inducer according to claim 1, it is characterised in that the Vickers hardness of the first wherein said Magnaglo is more than or equal to 250, and the Vickers hardness of this second Magnaglo is less than or equal to 80.
4. inducer according to claim 1, it is characterised in that the mean diameter of the first wherein said Magnaglo is 10 microns to 40 microns.
5. inducer according to claim 1, it is characterised in that the mean diameter of the second wherein said Magnaglo is less than or equal to 10 microns.
6. inducer according to claim 1, it is characterised in that the mean diameter of the second wherein said Magnaglo is less than or equal to 4 microns.
7. inducer according to claim 1, it is characterised in that wherein the mean diameter of this first Magnaglo and the ratio of the mean diameter of this second Magnaglo are more than 2.
8. inducer according to claim 1, it is characterised in that wherein the mean diameter of this first Magnaglo is 2.5 to 10 with the ratio of the mean diameter of this second Magnaglo.
9. inducer according to claim 1, it is characterised in that the material of the first wherein said Magnaglo includes metal alloy.
10. inducer according to claim 1, it is characterised in that the material of the first wherein said Magnaglo includes siderochrome silicon alloy, iron-nickel alloy, amorphous alloy, ferro-silicium or ferrum alusil alloy.
11. inducer according to claim 1, it is characterised in that the material of the second wherein said Magnaglo includes ferrum or ferroalloy.
12. inducer according to claim 1, it is characterised in that the material of the first wherein said Magnaglo includes amorphous alloy, and the material of this second Magnaglo includes ferrum.
13. inducer according to claim 1, it is characterised in that wherein the weight of this first Magnaglo is 0.25 to 4 with the ratio of the weight of this second Magnaglo.
14. inducer according to claim 1, it is characterized in that wherein when the material of this first Magnaglo includes amorphous alloy, and the material of this second Magnaglo is when including ferrum, the ratio of the weight of this first Magnaglo and the weight of this second Magnaglo is 0.67 to 1.5.
15. inducer according to claim 1, it is characterized in that wherein when the material of this first Magnaglo includes siderochrome silicon alloy, and the material of this second Magnaglo is when including ferrum, the ratio of the weight of this first Magnaglo and the weight of this second Magnaglo is 1.5 to 4.
16. inducer according to claim 1, it is characterised in that it more includes an adhesive agent, engaging this first Magnaglo and this second Magnaglo, the content of this adhesive agent is the 2wt%～3wt% of the gross weight of this magnetic.
17. inducer according to claim 16, it is characterised in that the material of wherein said adhesive agent is thermosetting resin.
18. inducer according to claim 1, it is characterised in that the wire being embedded in this magnetic in wherein said has the shape of a coiling.
19. inducer according to claim 1, it is characterised in that wherein said magnetic utilizes a moulding process to be formed, and the briquetting pressure of this moulding process is 6 tons every square centimeter to 11 tons every square centimeter.
20. inducer according to claim 1, it is characterised in that wherein said magnetic imposes a heating technique, the temperature of this heating technique is less than 300 DEG C.
21. the manufacture method of an inducer, it is characterised in that it comprises the following steps:
One wire with insulating barrier is provided；
Thering is provided a mixture, this mixture includes:
One first Magnaglo；
One second Magnaglo, wherein the Vickers hardness of this first Magnaglo more than the Vickers hardness of this second Magnaglo and has a hardness difference, and the mean diameter of this first Magnaglo is more than the mean diameter of this second Magnaglo；And
One adhesive agent, mixes mutually with this first Magnaglo and this second Magnaglo；
This wire and this mixture are carried out a moulding process, this first Magnaglo wherein mixed mutually and this second Magnaglo and in be embedded in this wire therein can be one-body molded to form a magnetic under the fusing point lower than the insulating barrier of this wire by this hardness difference；And
Solidify this adhesive agent.
22. the manufacture method of inducer according to claim 21, it is characterised in that wherein solidifying this adhesive agent in the way of a heating, the temperature of this heating is less than 300 DEG C.
23. the manufacture method of inducer according to claim 21, it is characterised in that wherein in this moulding process, applying a briquetting pressure in this mixture, this briquetting pressure is 6 tons every square centimeter to 11 tons every square centimeter.
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| KR20150007766A (en) * | 2013-07-12 | 2015-01-21 | 삼성전기주식회사 | Inductor and method for manufacturing the same |
| US9719159B2 (en) * | 2014-09-24 | 2017-08-01 | Cyntec Co., Ltd. | Mixed magnetic powders and the electronic device using the same |
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| JP6583627B2 (en) * | 2015-11-30 | 2019-10-02 | Tdk株式会社 | Coil parts |
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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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|---|---|---|---|---|
| CN105914003A (en) * | 2009-05-27 | 2016-08-31 | 乾坤科技股份有限公司 | Inductor and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105914002B (en) | 2018-08-31 |
| CN105914003A (en) | 2016-08-31 |
| CN105914003B (en) | 2018-09-04 |
| CN101901668A (en) | 2010-12-01 |
| CN105914002A (en) | 2016-08-31 |
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