CN203706768U - Amorphous combined magnetic powder core - Google Patents
Amorphous combined magnetic powder core Download PDFInfo
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- CN203706768U CN203706768U CN201320793746.3U CN201320793746U CN203706768U CN 203706768 U CN203706768 U CN 203706768U CN 201320793746 U CN201320793746 U CN 201320793746U CN 203706768 U CN203706768 U CN 203706768U
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- powder core
- magnetic
- core
- powder
- amorphous
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- 239000006247 magnetic powder Substances 0.000 title abstract description 8
- 239000000843 powder Substances 0.000 claims description 87
- 230000035699 permeability Effects 0.000 claims description 48
- 239000000696 magnetic material Substances 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000243 solution Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model belongs to the manufacturing field of metal soft magnetic materials, and particularly relates to an amorphous combined magnetic powder core. A vertical view of the amorphous combined magnetic powder core is a hollow rectangle or square, and is formed by splicing four cubic magnetic powder cores with equal height; two of the four magnetic powder cores have the same magnetic conductivity, the other two of the four magnetic powder cores have the same magnetic conductivity, and the difference of the two magnetic conductivities is more than 200. The amorphous combined magnetic powder core has the characteristics of low loss and high efficiency.
Description
Technical field
The utility model belongs to metal soft magnetic material and manufactures field, is specifically related to a kind of amorphous combination powder core.
Background technology
Metal magnetic powder core is to be mixed a kind of soft magnetic material that compacting forms with dielectric by ferromagnetism powder, and its special soft magnet performance makes it have in many application scenarios the advantage that other magnetic materials hardly match.Since 21 century, scientific and technological progress needs various high performance electronic devices, thus powder core is had higher requirement.Amorphous FeSiB powder core has that quality factor are high, high-frequency loss is low, lower-price characteristic, is with a wide range of applications in high-frequency inductor iron core field.
Composite type soft magnet core is that two kinds of soft magnetic materials that utilize magnetic permeability to differ larger are spliced, be spliced into rectangular iron core and form magnetic flux short circuit on high magnetic permeability limit, reduce effective magnetic circuit, reach same electrical sensibility reciprocal compared with conventional soft magnet core time, coil used is still less, greatly cost-saving.Conventional normally iron sial, iron silicon etc. and ferritic combination of composite type soft magnet core at present, but the effective contact-making surface in its junction of this combination of different materials iron core is less, different materials possesses different saturation induction density (Bs) and causes this assembling iron core to produce in use more heat, makes that core loss increases, Efficiency Decreasing simultaneously.Therefore how to reduce assembling iron core loss, raise the efficiency be combination powder core a major issue.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide one to have the high efficiency amorphous combination of low-loss powder core.
The technical solution of the utility model is: a kind of amorphous combination powder core, its vertical view is rectangle or the square of hollow, and be spliced by four contour cube shaped powder cores, in described four powder cores, two magnetic permeabilitys are identical, remain two magnetic permeabilitys identical, described two kinds of magnetic permeabilitys differ more than 200.
Optimize, described two kinds of magnetic permeabilitys are respectively 30 and 300.
Optimize, the long limit of the powder core that two magnetic permeabilitys are 30 forms two parallel opposite side of combination powder core, the minor face structure of the powder core that the long limit of the powder core that the parallel opposite side of two other of combination powder core is 300 by magnetic permeability respectively and two magnetic permeabilitys are 30.
The beneficial effects of the utility model are: 1, by adopting non-crystalline material of the same race to prepare assembling iron core, the effective contact-making surface in iron core junction is increased greatly, loss reduction, efficiency improve; 2, by adopting magnetic permeability to differ assembling iron core prepared by more than 200 different amorphous powder cores, reduced effective magnetic circuit, reach same electrical sensibility reciprocal compared with conventional soft magnet core time, coil used is still less, greatly cost-saving.
Accompanying drawing explanation
The schematic diagram of the combination powder core that Fig. 1 provides for embodiment 1;
The schematic diagram of the combination powder core that Fig. 2 provides for comparative example 1;
The schematic diagram of the combination powder core that Fig. 3 provides for comparative example 2;
The schematic diagram of the combination powder core that Fig. 4 provides for comparative example 3.
Embodiment
Illustrate the utility model below in conjunction with drawings and embodiments.
Embodiment 1
The technical scheme of the present embodiment is: a kind of amorphous combination powder core, its vertical view is rectangle or the square of hollow, and be spliced by four contour cube shaped powder cores, in described four powder cores, two magnetic permeabilitys are identical, remain two magnetic permeabilitys identical, described two kinds of magnetic permeabilitys differ more than 200.
Wherein, described two kinds of magnetic permeabilitys are respectively 30 and 300.
Wherein, the long limit of the powder core that two magnetic permeabilitys are 30 forms two parallel opposite side of combination powder core, the minor face structure of the powder core that the long limit of the powder core that the parallel opposite side of two other of combination powder core is 300 by magnetic permeability respectively and two magnetic permeabilitys are 30.
The preparation method of above-mentioned amorphous combination powder core, comprises the steps:
Step 1, prepares respectively magnetic permeability and differs two kinds of more than 200 powder cores, and the profile of described powder core is contour cube shaped, and the powder core of every kind of magnetic permeability is prepared respectively two;
Step 2, is spliced into combination powder core by four powder cores with magnetic-conductive adhesive, rectangle or square that the vertical view of combination powder core is hollow, and adopt the connecting method connected powder core of different magnetic permeabilitys.
Wherein, the preparation method of powder core is for adopting mechanical crushing method that amorphous band is ground into powder, sieve out different grain size, powder is mixed, soak and do 120 ℃ of oven dry after Passivation Treatment, washed with de-ionized water with Phosphating Solution, adopt glass dust as insulating compound, epoxy resin, acetone mixed solution are as binding agent, micro mist wax carries out insulating wrapped compressing as lubricant, after heat treatment soaks insulating varnish.
Wherein, the magnetic permeability of described two kinds of powder cores is respectively 30 and 300.
Wherein, the particle size of the powder core that described magnetic permeability is 30 and weight proportion thereof are: 170 ~ 200 order 5%-10%, 200-270 order 35%-40%, 270-325 order 45%-55%, 325-400 order 10%-20%; Its passivating conditions is to soak 1h in 10% Phosphating Solution.
Wherein, the particle size of the powder core that described magnetic permeability is 300 and weight proportion thereof are: 140-170 order 45%-55%, 170-200 order 35%-40%, 270-325 order 10%-15%; 325-400 order 5%-10%; Its passivating conditions is to soak 3h in 7% Phosphating Solution.
The amorphous powder pressing that wherein magnetic permeability is 30 becomes the rectangular of 70*20*20, and the amorphous powder pressing that magnetic permeability is 300 becomes the rectangular of 100*20*20, and pressed density is consistent; The non-crystal bar that compacting is obtained under inert gas shielding atmosphere through 450 ℃ of heat treatment 1h, cooling rear immersion insulating varnish 120 ℃ of oven dry.
Wherein, described connecting method is: the long limit of the powder core that two magnetic permeabilitys are low forms two parallel opposite side of combination powder core, and the long limit of two powder cores that magnetic permeability is high is two parallel opposite side of minor face formation of the powder core low with two magnetic permeabilitys respectively.
Comparative example 1
The combination powder core that this comparative example provides a kind of amorphous powder core that is 30 by four magnetic permeabilitys to form, its preparation method, comprises the steps:
Step 1, prepares magnetic permeability and is four powder cores of 30, and the profile of described powder core is contour cube shaped.
Step 2, is spliced into combination powder core by four powder cores with magnetic-conductive adhesive, the square that the vertical view of combination powder core is hollow, and adopt end to end powder core connecting method.
Wherein, the preparation method of powder core is for adopting mechanical crushing method that amorphous band is ground into powder, sieve out different grain size, powder is mixed, soak and do 120 ℃ of oven dry after Passivation Treatment, washed with de-ionized water with Phosphating Solution, adopt glass dust as insulating compound, epoxy resin, acetone mixed solution are as binding agent, micro mist wax carries out insulating wrapped compressing as lubricant, after heat treatment soaks insulating varnish.
Wherein, the particle size of the powder core that described magnetic permeability is 30 and weight proportion thereof are: 170 ~ 200 order 5%-10%, 200-270 order 35%-40%, 270-325 order 45%-55%, 325-400 order 10%-20%; Its passivating conditions is to soak 1h in 10% Phosphating Solution.
The amorphous powder pressing that wherein magnetic permeability is 30 becomes the rectangular of 70*20*20, and pressed density is consistent; The non-crystal bar that compacting is obtained under inert gas shielding atmosphere through 450 ℃ of heat treatment 1h, cooling rear immersion insulating varnish 120 ℃ of oven dry.
Comparative example 2
The difference of this comparative example and comparative example 1 is: the combination powder core that provides a kind of amorphous powder core that is 300 by four magnetic permeabilitys to form, it is four powder cores of 300 that the difference of its preparation method and comparative example 1 is to prepare in step 1 magnetic permeability, described magnetic permeability is that particle size and the weight proportion thereof of 300 powder core is: 140-170 order 45%-55%, 170-200 order 35%-40%, 270-325 order 10%-15%; 325-400 order 5%-10%; Its passivating conditions is to soak 3h in 7% Phosphating Solution; Magnetic permeability is that 300 amorphous powder pressing becomes that 100*20*20's is rectangular.
Comparative example 3
The assembling iron core of this comparative example adopts iron sial and the 2 ferrite iron core formations that magnetic permeability is 300 that 2 magnetic permeabilitys are 30, wherein the long limit of two blocks of iron sial forms two parallel opposite side of combination powder core, and two ferritic long limits form two parallel opposite side with the minor face of two blocks of iron sial respectively.Wherein iron sial is pressed into the rectangular of 70*20*20, and ferrite is pressed into the rectangular of 100*20*20.
Combination powder core prepared by embodiment 1 and comparative example 1-3 uses respectively enamelled wire around the corresponding number of turns, measures its inductance, in the time that initial inductance reaches 32000 μ H, adds up the coil turn of every kind of sample; Test dynamic permeadility (μ) and the unit volume loss (Pcv) of the powder core making by B-H analyzer, adopt LCR instrument to test its direct current biasing (DCBias), and by the grain size proportion of four examples and performance inventory in table 1.
Table 1
From table 1, can see, by compared with ferrite iron sial assembling iron core, the combination powder core that the utility model provides has the advantages that the low while direct current biasing of loss is more or less the same with comparative example 3; Be compared with the combination powder core that forms of 300 powder core with only adopting magnetic permeability, the combination powder core that the utility model provides has the mutually high feature of the low while direct current biasing of loss; Be compared with the combination powder core that forms of 30 powder core with only adopting magnetic permeability, the combination powder core that the utility model provides has and while reaching identical inductances, uses the feature that coil is few.
The beneficial effect of present embodiment is: 1, by adopting non-crystalline material of the same race to prepare assembling iron core, the effective contact-making surface in iron core junction is increased greatly, loss reduction, efficiency improve; 2, by adopting magnetic permeability to differ assembling iron core prepared by more than 200 different amorphous powder cores, reduce effective magnetic circuit, in the time reaching same electrical sensibility reciprocal, used coil few, reduced cost.
Claims (3)
1. an amorphous combination powder core, it is characterized in that: the rectangle that its vertical view is hollow or square, and be spliced by four contour cube shaped powder cores, in described four powder cores, two magnetic permeabilitys are identical, remain two magnetic permeabilitys identical, described two kinds of magnetic permeabilitys differ more than 200.
2. amorphous combination powder core according to claim 1, is characterized in that: described two kinds of magnetic permeabilitys are respectively 30 and 300.
3. amorphous combination powder core according to claim 2, it is characterized in that: the long limit of the powder core that two magnetic permeabilitys are 30 forms two parallel opposite side of combination powder core, the minor face of the powder core that the long limit of the powder core that the parallel opposite side of two other of combination powder core is 300 by magnetic permeability respectively and two magnetic permeabilitys are 30 forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793746.3U CN203706768U (en) | 2013-12-06 | 2013-12-06 | Amorphous combined magnetic powder core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793746.3U CN203706768U (en) | 2013-12-06 | 2013-12-06 | Amorphous combined magnetic powder core |
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| Publication Number | Publication Date |
|---|---|
| CN203706768U true CN203706768U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320793746.3U Expired - Lifetime CN203706768U (en) | 2013-12-06 | 2013-12-06 | Amorphous combined magnetic powder core |
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| Country | Link |
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| CN (1) | CN203706768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531423A (en) * | 2016-12-30 | 2017-03-22 | 青岛云路新能源科技有限公司 | Rectangular metal powder core inductor |
-
2013
- 2013-12-06 CN CN201320793746.3U patent/CN203706768U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531423A (en) * | 2016-12-30 | 2017-03-22 | 青岛云路新能源科技有限公司 | Rectangular metal powder core inductor |
| CN106531423B (en) * | 2016-12-30 | 2019-04-09 | 青岛云路新能源科技有限公司 | A kind of rectangular metal powder core inductance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190507 Address after: 266232 No. 7 Xinyuan East Road, Lancun Town, Jimo City, Qingdao, Shandong Province Patentee after: QINGDAO YUNLU ADVANCED MATERIALS TECHNOLOGY Co.,Ltd. Address before: 266232 West Industrial Park, Lancun Town, Jimo City, Qingdao City, Shandong Province Patentee before: QINGDAO YUNLU ENERGY TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |