CN105845423A - Manufacturing method of integrated inductor and integrated inductor manufactured thereby - Google Patents
Manufacturing method of integrated inductor and integrated inductor manufactured thereby Download PDFInfo
- Publication number
- CN105845423A CN105845423A CN201610440720.9A CN201610440720A CN105845423A CN 105845423 A CN105845423 A CN 105845423A CN 201610440720 A CN201610440720 A CN 201610440720A CN 105845423 A CN105845423 A CN 105845423A
- Authority
- CN
- China
- Prior art keywords
- powder
- integrated inductor
- mesh
- product
- gained
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 238000002161 passivation Methods 0.000 claims abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229960004643 cupric oxide Drugs 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 235000015173 baked goods and baking mixes Nutrition 0.000 claims 2
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000411 inducer Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- 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
- H01F1/42—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of organic or organo-metallic materials, e.g. graphene
-
- 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
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- 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)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a manufacturing method of an integrated inductor; the manufacturing method is simplified in technology and controllable in technological parameters, and can be used for obtaining high-quality products. The manufacturing method comprises the following steps: A. manufacturing an iron core ring-shaped object; B. putting the iron core ring-shaped object obtained in the step A into a polishing machine for grinding to obtain powder particles with particle sizes not exceeding 200 meshes; C. carrying out oxidization and insulation treatment to obtain oxidized and insulated powder; D. obtaining a mixture; E. putting a coil and a lead copper frame into a mould; pouring the mixture obtained in the step D into the mould for pressure casting to obtain an integrated structure; F. baking the integrated structure obtained in the step E, and then cooling to obtain a baked product; G. putting the baked product obtained in the step F into a passivation solution for passivating, and then carrying out aftertreatment on the passivated product to obtain the integrated inductor. The invention also discloses the integrated inductor manufactured by the method; the product is good in performances and less in damage to the manufacturing mould.
Description
Technical field
The present invention relates to inductors technique field, be specifically related to the manufacture method of a kind of integrated inductor and use the method institute
Obtain integrated inductor.
Background technology
Inductor product is broadly divided into three classes: one is, processes electromagnetic interference inductance；Two are, process signal inductance；Three are,
Power inductance.
The operation voltage of general consumption electronic products is the unidirectional current of low pressure, is obtaining the alternating current power supply that Utilities Electric Co. provides
After, electronic product needs rectification and transformation can obtain the direct current of needs and the power supply of relatively low pressure for circuit work.Impedance is
With the product of frequency and inductance value is directly proportional, and inductance value with the number of turns square, magnetic circuit sectional area is directly proportional, the work of circuit
Make and run necessarily to obtain the impedance of needs to be allocated.
Required by people, the function of electronic product gets more and more, and causes electronic circuit also to become increasingly complex, and because of existing electricity
Sub-product many employings manual work, product quality wayward (as big in volume, magnetic losses is big, quick heating and height during work,
It is easily saturated and noise is big etc.), cause the performance of product to be unable to reach requirement.
The technique making inducer in prior art there is also following defect: phosphoric acid, resin, acetone are added on one by (1)
Rising and be stirred, dry after stirring, product strength is low and high-temperature resistant result is poor；(2) in manufacturing process, powder
Granularity is uneven, is easily caused product height and differs, and then has influence on the characteristic of product, simultaneously also can major injury mould；
(3) mouldability of product is poor, needs to use bigger pressure to carry out die casting, and intensified pressure is easily caused shaped inner material
Impaired, thus bring the unstable and great abnormal possibility of characteristic of product.
In sum, it is badly in need of that a kind of manufacture method is simplified, technological parameter is easily controlled and the integrated inductance of good product performance
Device is to solve problems of the prior art.
Summary of the invention
Present invention aim at providing a kind of technique to simplify, process parameter control and obtain high-quality product integrated inductance
The manufacture method of device, concrete technical scheme is as follows:
The manufacture method of a kind of integrated inductor, it is characterised in that comprise the steps:
Step A, making iron core cycle object, specifically: carry out mixed powder solidifying to sinter i.e. obtaining iron core cycle object,
Wherein: described mixed powder includes the following raw material in terms of mass fraction: carbonyl iron dust 45-60 part, reduced powder 30-40 part,
Magnesia powder 2-3 part, cupric oxide powder 0.03-0.04 part, stone powder 0.5-0.7 part and ferrous alloy 6-8 part；Solidify sintered
Temperature in journey is 800-900 degree, and the time is 4-6 hour；
Step B, step A gained iron core cycle object is put into polishing machine grind, it is thus achieved that particle diameter is less than the powder of 200 mesh
End granule；
Step C, oxide isolated process, specifically: by step B gained powder particle, carbonyl iron dust, silicon dioxide, phosphorus
Acid and acetone are sequentially added in blender and are uniformly mixing to obtain stirring material；It is filled with air, makes the acetone within blender complete
Full discharge；Take out stirring material to put in the baking tray of 95 °-110 ° and toast 2.5-4.0 hour；Aoxidized after being cooled to room temperature
The powder of insulation processing；Described powder particle, carbonyl iron dust, silicon dioxide, phosphoric acid and acetone proportioning by weight is
1000:1000:8.5-12.5:20-35:150-200；Described blender is air-tight state, stir speed (S.S.) be 180-300 turn/
Minute, mixing time is 1.8-2.5 hour；
Step D, pour the powder that step C gained oxide isolated processes into blender, add acetone soln and epoxy resin stirs
Mix and uniformly obtain stirring mixture, wherein: powder, acetone soln and epoxy resin that described oxide isolated processes are with weight
The proportioning of meter is 1000:150-200:70-145；Speed of agitator is 36-45 rev/min, and mixing time is 0.5-1.5 hour,
Whipping temp is 40 °-50 °；Stirring mixture is crossed 60 mesh sieves and obtains the particle diameter granulate mixture less than 60 mesh；Will
Granulate mixture toasts in the baking oven of 80 °-90 ° and obtains baked products in 2.0-3.0 hour；By baked products, zinc stearate,
Releasing agent and the hard resin mixing and stirring of 1000:2.5-3:1.0-2.2:30-50 by weight ratio, obtains mixture
Material, wherein: stir speed (S.S.) is 36-45 rev/min, mixing time is 15-20 minute；
Step E, coil and wire copper frame are positioned in mould；Step D gained mixed material is poured in mould and presses
Casting, obtains integrated formed structure；
Step F, step E gained integrated formed structure is put into baking box that temperature is 120 °-220 ° toast 2-3 hour；
Baked goods is obtained after being cooled to room temperature；
Step G, step F gained baked goods is put in passivating solution passivation within 3-5 minute, obtain being passivated product, then will passivation
Product carries out post processing and i.e. obtains integrally-formed inductor.
In above technical scheme preferably, the emery wheel grinding use in described step B is 500 mesh, after grinding, uses 200
Eye mesh screen screens, and the 200 above powder of mesh carries out extruding again and pulverizes, it is ensured that powder particle can reach 200 mesh or more
Little granule, without caking object.
In above technical scheme preferably, in described step C, mixing time is 2.0 hours, and stir speed (S.S.) is 200 revs/min；
Baking temperature is 100 DEG C, and baking time is 3.0 hours；Described powder particle, carbonyl iron dust, silicon dioxide, phosphoric acid with
And the proportioning that acetone is by weight is 1000:1000:9:25:170.
In above technical scheme preferably, in described step E, press pressure is 45-55 ton.
In above technical scheme preferably, the passivating solution in described step G is antirust oil；Described post processing includes making wire
Terminal step, cutting step and pressing step.
Application technical scheme, has the advantages that (1) prepares iron core cycle object according to routine techniques,
Technology maturation, it is simple to produce；(2) iron core bulk object is polished machine and grinds acquisition granule uniformly, improve product
Homogeneity；(3) surface of powder particle carries out oxide isolated process, and making between granule and granule is insulator, makes carbonyl
Granule after base ferrum and the pulverizing of iron core block reaches the effect of insulation；(4) powder after being processed by oxide isolated pours blender into
In, add acetone soln and epoxy resin, it is ensured that well-bonded between powder, uniformity is good；(5) coil and wire copper
Frame separately processes, then by one-body molded to coil, wire copper frame and powder, easy to make, and guarantees the mouldability of product,
Pressure selects rationally, do not interfere with the performance of product and mould is caused damage；(6) present invention additionally comprises post processing step
Suddenly, use high-precision cutting equipment and tool, cut along wire copper frame edge, by excess wire conductor excision and not
Can there is gap with plane, then use cam Bearing to slide up and down mode, product wire copper frame is curved U-shape state, then
Again by cutting equipment by the excess wire parallel excision of copper frame, re-use briquetting and flatten, obtain high performance inductance finished product.
The present invention also provides for the integrally-formed inductor that a kind of said method prepares, and structure is simplified, and performance is good.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.Under
Face will be with reference to figure, and the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the illustrative examples of the present invention
And explanation is used for explaining the present invention, it is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the integrated molding inducer of the preferred embodiment of the present invention 1；
Wherein, 1, inductance main body, 2, conductor terminal.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can according to claim limit and
The multitude of different ways covered is implemented.
Embodiment 1:
See Fig. 1, a kind of integrated inductor, including inductance main body 1, be embedded in the coil within described inductance main body 1 and
Wire copper frame and conductor terminal 2, described conductor terminal 2 is connected with described coil.
The manufacture method of above-mentioned integrated inductor, comprises the steps:
Step A, making iron core cycle object, specifically: carry out mixed powder solidifying to sinter i.e. obtaining iron core cycle object,
Wherein: described mixed powder includes the following raw material in terms of mass fraction: carbonyl iron dust 55.46 parts, reduced powder 34.2 parts,
Magnesia powder 2.96 parts, cupric oxide powder 0.036 part, stone powder 0.65 part and ferrous alloy 6.20 parts；Solidification sintering (Gu
Change sintering detailed process can refer to ferrum ferro-silico aluminium oxysome solid sintering procedure in prior art) temperature be 850 DEG C, the time
It it is 5.2 hours；
Step B, step A gained iron core cycle object is put into polishing machine grind, it is thus achieved that particle diameter is less than the powder of 200 mesh
End granule, wherein: grinding the emery wheel used is 500 mesh, after grinding, uses 200 eye mesh screens to screen, by 200 mesh
Above powder carries out extruding again and pulverizes, it is ensured that powder particle can reach 200 mesh or less granule, without caking object；
Step C, oxide isolated process, specifically: by step B gained powder particle, carbonyl iron dust, silicon dioxide, phosphorus
Acid and acetone soln are sequentially added in blender and are uniformly mixing to obtain stirring material；It is filled with air, makes third within blender
Ketone is completely exhausted out；Take out stirring material to put in the baking tray of 100 ° and toast 3.0 hours；Oxidation is obtained absolutely after being cooled to room temperature
The powder that edge processes；Described powder particle, carbonyl iron dust, silicon dioxide, phosphoric acid and acetone soln proportioning by weight
For 1000:1000:11.5:28:178；Described blender is air-tight state, and stir speed (S.S.) is 200 revs/min, stirring
Time is 2.2 hours；
Step D, pour the powder that step C gained oxide isolated processes into blender, add acetone soln and epoxy resin stirs
Mix and uniformly obtain stirring mixture, wherein: powder, acetone soln and epoxy resin that described oxide isolated processes are with weight
The proportioning of meter is 1000:176:123；Speed of agitator is 40 revs/min, and mixing time is 1.0 hours, and whipping temp is
48°；Stirring mixture is crossed 60 mesh sieves and obtains the particle diameter granulate mixture less than 60 mesh；By granulate mixture at 85 °
Baking oven in baking within 2.5 hours, obtain baked products (in baking process, acetone can volatilize according to temperature, thus causes
There is no content of acetone in powder, and in baking process, epoxy resin can stick on powder particle according to temperature, thus cause
Powder particle surface is all with one layer of epoxy resin, and epoxy resin plays the cementation between granule and granule)；Will baking
Product, zinc stearate, releasing agent and the hard resin mixing and stirring of 1000:3.0:2.0:38 by weight ratio,
To mixed material, wherein: stir speed (S.S.) is 40 revs/min, mixing time is 20 minutes；
Step E, coil and wire copper frame are positioned in mould；Step D gained mixed material is poured in mould and presses
Casting, obtains integrated formed structure, wherein: press pressure is 48 tons, and pressing process is without operation of heating；
Step F, step E gained integrated formed structure is put into baking box that temperature is 21 ° toast 2.5 hours；It is cooled to
Baked goods is obtained after room temperature；
Step G, step F gained baked goods is put in passivating solution passivation within 4 minutes, obtain being passivated product, then by passivation product
Product carry out post processing and i.e. obtain integrally-formed inductor, and described post processing includes making conductor terminal step, cutting step and pressure
Flat step, concrete operations can refer to prior art.Passivating solution is ultra-thin fast-drying type, conveniently use, solvent type anti-herein
Rust oil, the shortcoming that oil film is tangibly dry film, avoid oiliness surface easily inhales ash, it is provided that adverse circumstances (salt fog,
High temperature etc.) in anti-corrosion protection.The producer of this passivating solution is Tianjin antirust technology company limited, and model is 33CD-9.
Raw material used in said process, Details as Follows: uses analytically pure acetone soln, and its concentration is 99.9%；Carbonyl
The model of base iron powder is SW-S；The granularity of reduced powder is 500 mesh；Use the magnesia powder of high-purity heavy；Use super
Thin cupric oxide powder；The model of stone powder is ATT-125；The model of ferrous alloy is H11-500；Use high-purity titanium dioxide
Silicon；Use high-purity phosphoric acid；The model of epoxy resin is #203, and its producer is that Taiwan Nan Bao resin chemical factory share is limited
Company；The model of zinc stearate is SAK-ZS-PLB；The model of releasing agent is MK-TD；The model of hard resin is
729-SS20, its producer is Dadong Resin Chemical Co., Ltd..
In above-mentioned steps E, the consumption of mixed material is as shown in table 1 with the corresponding table of the specification of made integrated inductor, tool
Body enumerates the parameter of seven kinds of (A1-A7) products:
Relation between the size of table 1 integrated inductor, mixed material consumption and prepared product
| Product type parameter | Weight/the g of mixed material | Product length/cm | Product width/cm | Product thickness/cm |
| A1 | 0.65-0.7g | 6.95±0.35 | 6.60±0.20 | 2.80±0.20 |
| A2 | 0.36-0.4g | 5.40±0.35 | 5.20±0.20 | 2.80±0.20 |
| A3 | 0.88-0.92g | 6.95±0.35 | 6.60±0.20 | 3.80±0.20 |
| A4 | 1.84-1.95g | 11.15±0.35 | 10.00±0.30 | 3.80±0.20 |
| A5 | 3.55-3.75g | 13.45±0.35 | 12.6±0.20 | 4.80±0.20 |
| A6 | 4.85-5.05g | 13.45±0.35 | 12.6±0.20 | 5.80±0.20 |
| A7 | 9.5-10.2g | 18.00±0.30 | 17.00±0.30 | 6.80±0.20 |
Above-mentioned coil and wire copper frame are air core coil and wire copper frame carries out the product of spot welding (air core coil material is enamel-cover
Line, copper is red copper, and wire copper frame material is red copper, and surface carries out cloudy surface electrotinning), use inversion type spot-welding machine or laser
Air core coil lead portion is welded in wire copper frame by welding equipment, and for convenience of operation raising efficiency, air core coil is that employing is many
Individual connected mode operation, will be cut into single, during how air core coil winding mode has, be referred to Application No. after die casting
The patent application of 20081006667.7, specifically: monolayer, two-layer, three layers, four layers, its air core coil coiling goes out foot mode
Going out to connect wire copper frame for feet on parallel lines, during air core coil bipod is further around system, first coiling innermost circle, then by second
Layer parcel, to inner ring, carries out the number of plies of coiling needs the most again, after coiling ranks accordingly according to the different number of turns,
The number of plies is two-layer beyond 2 circles, and two-layer, three layers, four layers of number of turns ranking generally innermost circle circle more not a half than outer ring, three layers have one
Going out that to go out foot with another after foot needs bending parallel, the part of three layers of bending leg, outlet position is outermost after processing rotates plug
Side layer, four layer line circles also must go out foot be parallel go out foot mode, stop line footpath and weigh wounded mutually, cause broken skin, pressure performance low
Deng；Go out foot parallel facilitate follow-up welding lead copper frame welding after coil parallel with wire copper frame, this part can be multiple employing also
The mode that connection connects, so that coil is in parastate in press casting procedure and promotes in press casting procedure, promotes and puts welding
Rear coil efficiency, improves production capacity and the concordance of improving product.
Using present implementation and art methods respectively to produce 5 integrally-formed inductors with batch, product specification refers to table
2, the performance parameter (measuring method of performance parameter is with reference to prior art) of product is shown in Table 2:
Table 2 prior art and the inventive method produce the parametric statistics table of product
Data from table 2 understand: have the effect that
(1) prior art is because of product length value (7.09-7.21), width value (6.66-6.68) and one-tenth-value thickness 1/10 (2.73-.96)
Excursion the biggest, the mould of equal operation can cause that upper and lower diel is different in size, mould punching head mould tool is pliable
Bent deformation, thus cause drift and middle mold coordinate poor and fretting wear, the situation such as cause that precision cannot be keeped in repair more greatly；This
Inventive method product length value (7.17-7.23), width value (6.65-6.66) and one-tenth-value thickness 1/10 (2.79-2.86) difference are all
Smaller, little on mould impact.
(2) DC-Bias value (20.40%-28.51%), Lo value (4.025-5.546), Li (6.5A) in prior art
The excursion of value (3.204-3.965) and DCR value (32.12-33.76m Ω) is the biggest, has a strong impact on the property of product
Energy；And DC-Bias value (21.60%-23.63%), Lo value (4.523-4.899), Li (6.5A) in the inventive method
The excursion of value (3.546-3.812) and DCR value (31.95-32.78m Ω) is the least, properties of product good stability.
In the present invention, LCR represents inductance value, and DCR is represented as coil resistance, and Lo is represented as initial inductance, and Li is represented as powering up
Inductance after stream, DC-Bias represents saturated or superposition.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For Yuan, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. the manufacture method of an integrated inductor, it is characterised in that comprise the steps:
Step A, making iron core cycle object, specifically: carry out mixed powder solidifying to sinter i.e. obtaining iron core cycle object,
Wherein: described mixed powder includes the following raw material in terms of mass fraction: carbonyl iron dust 55.46 parts, reduced powder 30-40 part,
Magnesia powder 2-3 part, cupric oxide powder 0.03-0.04 part, stone powder 0.5-0.7 part and ferrous alloy 6-8 part；Solidification sintering
Temperature is 800-900 DEG C, and the time is 4-6 hour；
Step B, step A gained iron core cycle object is put into polishing machine grind, it is thus achieved that particle diameter is less than the powder of 200 mesh
End granule；
Step C, oxide isolated process, specifically: by step B gained powder particle, carbonyl iron dust, silicon dioxide, phosphorus
Acid and acetone are sequentially added in blender and are uniformly mixing to obtain stirring material；It is filled with air, makes the acetone within blender complete
Full discharge；Take out stirring material to put in the baking tray of 95 °-110 ° and toast 2.5-4.0 hour；Aoxidized after being cooled to room temperature
The powder of insulation processing；Described powder particle, carbonyl iron dust, silicon dioxide, phosphoric acid and acetone proportioning by weight is
1000:1000:8.5-12.5:20-35:150-200；Described blender is air-tight state, stir speed (S.S.) be 180-300 turn/
Minute, mixing time is 1.8-2.5 hour；
Step D, pour the powder that step C gained oxide isolated processes into blender, add acetone soln and epoxy resin stirs
Mix and uniformly obtain stirring mixture, wherein: powder, acetone soln and epoxy resin that described oxide isolated processes are with weight
The proportioning of meter is 1000:150-200:70-145；Speed of agitator is 36-45 rev/min, and mixing time is 0.5-1.5 hour,
Whipping temp is 40 °-50 °；Stirring mixture is crossed 60 mesh sieves and obtains the particle diameter granulate mixture less than 60 mesh；Will
Granulate mixture toasts in the baking oven of 80 °-90 ° and obtains baked products in 2.0-3.0 hour；By baked products, zinc stearate,
Releasing agent and the hard resin mixing and stirring of 1000:2.5-3:1.0-2.2:30-50 by weight ratio, obtains mixed material,
Wherein: stir speed (S.S.) is 36-45 rev/min, mixing time is 15-20 minute；
Step E, coil and wire copper frame are positioned in mould；Step D gained mixed material is poured in mould and presses
Casting, obtains integrated formed structure；
Step F, step E gained integrated formed structure is put into baking box that temperature is 120 °-220 ° toast 2-3 hour；
Baked goods is obtained after being cooled to room temperature；
Step G, step F gained baked goods is put in passivating solution passivation within 3-5 minute, obtain being passivated product, then will passivation
Product carries out post processing and i.e. obtains integrally-formed inductor.
The manufacture method of integrated inductor the most according to claim 1, it is characterised in that grind in described step B
The emery wheel used is 500 mesh, after grinding, uses 200 eye mesh screens to screen, is extruded by the 200 above powder of mesh again
Pulverize, it is ensured that powder particle can reach 200 mesh or less granule, without caking object.
The manufacture method of integrated inductor the most according to claim 1, it is characterised in that stir in described step C
The time of mixing is 2.0 hours, and stir speed (S.S.) is 200 revs/min；Baking temperature is 100 DEG C, and baking time is 3.0 hours；
Described powder particle, carbonyl iron dust, silicon dioxide, phosphoric acid and acetone proportioning by weight is 1000:1000:9:
25:170.
The manufacture method of integrated inductor the most according to claim 1, it is characterised in that press in described step E
Machine pressure is 45-55 ton.
The manufacture method of integrated inductor the most according to claim 1, it is characterised in that in described step G
Passivating solution is antirust oil；Described post processing includes making conductor terminal step, cutting step and flattening step.
6. use the integrated inductor obtained by manufacture method as described in claim 1-5 any one, its feature
It is: include inductance main body (1), be embedded in the internal coil of described inductance main body (1) and wire copper frame and conductor terminal
(2), described conductor terminal (2) is connected with described coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440720.9A CN105845423B (en) | 2016-06-17 | 2016-06-17 | Integrated inductor obtained by the preparation method and use the method for integrated inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440720.9A CN105845423B (en) | 2016-06-17 | 2016-06-17 | Integrated inductor obtained by the preparation method and use the method for integrated inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845423A true CN105845423A (en) | 2016-08-10 |
| CN105845423B CN105845423B (en) | 2018-01-19 |
Family
ID=56576284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440720.9A Active CN105845423B (en) | 2016-06-17 | 2016-06-17 | Integrated inductor obtained by the preparation method and use the method for integrated inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105845423B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887642A (en) * | 2019-03-04 | 2019-06-14 | 合肥博微田村电气有限公司 | Insulating wrapped agent, integrated inductance preparation method |
| WO2020207687A1 (en) * | 2019-04-08 | 2020-10-15 | Robert Bosch Gmbh | Inductive component and method for producing an inductive component |
| CN112614686A (en) * | 2020-11-26 | 2021-04-06 | 天长市盛泰磁电科技有限公司 | Ultra-thin type soft magnet oxidation magnetic core forming die |
| CN112768176A (en) * | 2020-12-30 | 2021-05-07 | 庆邦电子元器件(泗洪)有限公司 | Novel precise power inductor and processing technology thereof |
| CN114999815A (en) * | 2022-07-15 | 2022-09-02 | 横店集团东磁股份有限公司 | Compression molding inductor and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700368A (en) * | 2005-05-27 | 2005-11-23 | 罗计添 | Soft-magnetic composite material and process for making magnetic conduction component by using same |
| CN101226807A (en) * | 2007-09-05 | 2008-07-23 | 湖州科达磁电有限公司 | Soft magnetic composite organically/inorganically compound insulation coating powdered iron and preparation method thereof |
| CN101958192A (en) * | 2009-07-20 | 2011-01-26 | 富士康(昆山)电脑接插件有限公司 | Manufacture method of magnetic core and inductor manufactured by using magnetic core |
| CN104900365A (en) * | 2015-04-24 | 2015-09-09 | 马鞍山科信咨询有限公司 | High-performance soft magnet ferrite for LED lighting and display screen and preparation method thereof |
| CN105355408A (en) * | 2015-11-18 | 2016-02-24 | 韵升控股集团有限公司 | Moulding surface mounting inductor manufacture method |
-
2016
- 2016-06-17 CN CN201610440720.9A patent/CN105845423B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700368A (en) * | 2005-05-27 | 2005-11-23 | 罗计添 | Soft-magnetic composite material and process for making magnetic conduction component by using same |
| CN101226807A (en) * | 2007-09-05 | 2008-07-23 | 湖州科达磁电有限公司 | Soft magnetic composite organically/inorganically compound insulation coating powdered iron and preparation method thereof |
| CN101958192A (en) * | 2009-07-20 | 2011-01-26 | 富士康(昆山)电脑接插件有限公司 | Manufacture method of magnetic core and inductor manufactured by using magnetic core |
| CN104900365A (en) * | 2015-04-24 | 2015-09-09 | 马鞍山科信咨询有限公司 | High-performance soft magnet ferrite for LED lighting and display screen and preparation method thereof |
| CN105355408A (en) * | 2015-11-18 | 2016-02-24 | 韵升控股集团有限公司 | Moulding surface mounting inductor manufacture method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887642A (en) * | 2019-03-04 | 2019-06-14 | 合肥博微田村电气有限公司 | Insulating wrapped agent, integrated inductance preparation method |
| WO2020207687A1 (en) * | 2019-04-08 | 2020-10-15 | Robert Bosch Gmbh | Inductive component and method for producing an inductive component |
| CN113614862A (en) * | 2019-04-08 | 2021-11-05 | 罗伯特·博世有限公司 | Inductive component and method for producing an inductive component |
| CN112614686A (en) * | 2020-11-26 | 2021-04-06 | 天长市盛泰磁电科技有限公司 | Ultra-thin type soft magnet oxidation magnetic core forming die |
| CN112768176A (en) * | 2020-12-30 | 2021-05-07 | 庆邦电子元器件(泗洪)有限公司 | Novel precise power inductor and processing technology thereof |
| CN114999815A (en) * | 2022-07-15 | 2022-09-02 | 横店集团东磁股份有限公司 | Compression molding inductor and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105845423B (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105845423A (en) | Manufacturing method of integrated inductor and integrated inductor manufactured thereby | |
| CN101511511B (en) | Powder magnetic core and iron-base powder for powder magnetic core | |
| EP3118868B1 (en) | Powder magnetic core manufacturing method | |
| CN106373694B (en) | A kind of preparation method of Fe base amorphous soft magnet composite core | |
| CN107424713B (en) | A kind of soft magnetic composite powder and its application | |
| KR20050015563A (en) | Method for Making Fe-Based Amorphous Metal Powder and Method for Making Soft Magnetic Core Using the Same | |
| CN103730224B (en) | The preparation method with the Fe-based amorphous powder core of superhigh magnetic conductivity | |
| CN111063501B (en) | Preparation method of low-loss powder for producing integrally-formed inductor | |
| JP5924480B2 (en) | Magnetic powder material, low-loss composite magnetic material including the magnetic powder material, and magnetic element including the low-loss composite magnetic material | |
| CN100541678C (en) | The manufacture method of the Fe-Si-Al magnetic core of magnetic permeability μ=125 | |
| CN108242309A (en) | Improve the material preparation method of direct current biasing characteristic and the preparation method of powder core | |
| CN106663513A (en) | Magnetic core, method for producing magnetic core, and coil component | |
| CN114255952B (en) | Low-loss powder for integrally formed inductor and preparation method thereof | |
| CN106856141A (en) | Compressed-core and magnetic element | |
| CN105702410A (en) | Method for preparing soft magnetic powder core | |
| CN103745791A (en) | Production method of ultrahigh magnetic permeability of iron-based nanocrystalline magnetic powder core | |
| JP6107804B2 (en) | Coating liquid, dust core, powder for magnetic core and method for producing the same | |
| CN112908677A (en) | Preparation method of high-permeability low-loss integrated inductance material | |
| CN100530454C (en) | Method of preparing iron silicon aluminum magnetic powder core with magnetic-conductivity [Mu] of 26 | |
| CN112408970A (en) | High-frequency wide-temperature low-loss soft magnetic ferrite material and preparation method thereof | |
| CN109103010A (en) | A kind of material and its method improving powder core insulating layer consistency | |
| CN107507689A (en) | The preparation method of high magnetic permeability absorbing material | |
| CN106163701B (en) | The screening technique of iron powder for dust core and iron powder for dust core | |
| CN116190093A (en) | Soft magnetic powder core and preparation method thereof | |
| CN101958192A (en) | Manufacture method of magnetic core and inductor manufactured by using magnetic core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |