CN208753121U - A kind of signal filtering EMI inductor - Google Patents
A kind of signal filtering EMI inductor Download PDFInfo
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- CN208753121U CN208753121U CN201821535916.7U CN201821535916U CN208753121U CN 208753121 U CN208753121 U CN 208753121U CN 201821535916 U CN201821535916 U CN 201821535916U CN 208753121 U CN208753121 U CN 208753121U
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- magnetic core
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- 238000001914 filtration Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000004544 sputter deposition Methods 0.000 claims description 11
- 238000004070 electrodeposition Methods 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 2
- 239000013039 cover film Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 23
- 239000012774 insulation material Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical class CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
- Filters And Equalizers (AREA)
Abstract
The utility model provides a kind of signal filtering EMI inductor, it includes soft magnetic core, soft magnetic core is in the shape of an " I " or " I " font, coiling has coil on its center pillar, soft magnetic core surface forms insulating layer by insulator-coating, two end surfaces of soft magnetic core are equipped with electrode, and coil is connect with electrode, and soft magnetic core bottom is equipped with bottom plate.The utility model is after adopting the above scheme, coil automatic winding machine coiling and direct spot welding on I-shaped soft magnetic core, it is high-efficient, coil enamel-cover film is damaged, the inlet-outlet line of convolute coil is directly welded on four electrodes of soft magnetic core simultaneously, the Base (pedestal) or Case (rubber shell) for being used for device soft magnetic core are reduced, few materials is dropped, finally reduces production cost.
Description
Technical field
The utility model relates to inductors, refer in particular to a kind of signal filtering EMI inductor.
Background technique
Soft magnetic core used in the EMI inductance of signal filtering at present is round bead, since bead is in threading process
It easily causes the coat of paint of enamelled wire surface damaged, eventually leads to and form short circuit between coil enameled wire, while threading mostly uses manually
With Semi-automatic device, inefficiency, poor quality.
Summary of the invention
The purpose of this utility model is to provide a kind of structurally reasonable, good product consistency signals to filter EMI inductor.
To achieve the above object, technical solution provided by the utility model are as follows: a kind of signal filtering EMI inductor, it
It include soft magnetic core, soft magnetic core is in the shape of an " I " or " I " font, and coiling has coil on center pillar, and soft magnetic core surface is logical
It crosses insulator-coating and forms insulating layer, two end surfaces of soft magnetic core are equipped with electrode, and coil is connect with electrode, soft magnetic core bottom
Equipped with bottom plate.
The electrode is plated by water or PVD vacuum sputtering is formed in surface of insulating layer.
The soft magnetic core material is made of nickel-zinc ferrite or MnZn ferrite material.
The I-shaped or " I " font that the soft magnetic core is made of center pillar and end plate, end plate are located at center pillar both ends, end
The convex formation electrode position in both ends at the top of plate, electrode are in " 7 " font, and cross wall is located at electrode position surface, and perpendicular wall is located on the outside of end plate
On wall.
The utility model is after adopting the above scheme, coil automatic winding machine coiling and straight on I-shaped soft magnetic core
Contact weldering, high-efficient, coil enamel-cover film is damaged, reaches cost efficiency, while improving product quality, while convolute coil
Inlet-outlet line is directly welded on four electrodes of soft magnetic core, reduces the Base (pedestal) or Case (glue for being used for device soft magnetic core
Shell), few materials are dropped, production cost is finally reduced.
Detailed description of the invention
Fig. 1 is the combination diagram of the utility model.
Fig. 2 is the fractionation schematic diagram of the utility model.
Specific embodiment
Lower right combines all attached drawings, and the utility model is described in further detail, the preferred embodiment of the utility model are as follows: ginseng
See attached drawing 1 and attached drawing 2, it includes soft magnetic core 1 that signal described in the present embodiment, which filters EMI inductor, and soft magnetic core material is adopted
It is made of nickel-zinc ferrite or MnZn ferrite material, soft magnetic core 1 is in the shape of an " I " or " I " font, and soft magnetic core 1 is by center pillar
The I-shaped or " I " font constituted with end plate, end plate are located at center pillar both ends, the convex formation electrode position in both ends at the top of end plate, electricity
Pole 4 is in " 7 " font, and cross wall is located at electrode position surface, and perpendicular wall is located on end plate lateral wall；Coiling has coil 2, soft magnetism on center pillar
When magnetic core 1 is made of manganese-zinc ferrite, surface forms insulating layer 3,1 liang of end surfaces of soft magnetic core by insulator-coating
Equipped with electrode 4, coil 2 is connect with electrode 4, and 1 bottom of soft magnetic core is equipped with bottom plate 5.
The preparation process of above-mentioned inductor are as follows: soft magnetic core surface insulation processing-soft magnetic core Electrode treatment-is full-automatic
Dispensing-assembling I piece-automatic testing package of drying glue-lettering on coiling spot welding-I-type magnetic core.
The insulating layer 3 is formed by high voltage withstanding insulator-coating, is plated using water plating or PVD vacuum sputtering
Film mode carries out Electrode treatment, specifically: high pressure resistant insulation material is coated with I type surface magnetic core is I-shaped, then to I-shaped
Type MnZn ferrite material carries out four point electrode processing, and the high pressure resistant insulation material layer is by silicon, ethyl cellulose
And add minor metallic element and be dissolved in butyl and slurry is made, which is coated on entire soft magnetic core ontology appearance
Face, baking sintering after form the high pressure resistant insulation material layer, high pressure resistant insulation material layer temperature resistant range at 700 DEG C~900 DEG C,
It is a kind of inorganic insulation layer；The silicon, ethyl cellulose, butyl weight percent be respectively 50-
70%,2-20%,15-40%；Or the high pressure resistant insulation material layer is by high-temperature resin, N-methyl pyrrolidones and to be added few
Amount special resin is dissolved in methylisobutylketone and slurry is made, which is coated entire soft magnetic core body outer surface, baking sintering
After form the high pressure resistant insulation material layer, high pressure resistant insulation material layer temperature resistant range is a kind of organic at 350 DEG C~450 DEG C
Insulating layer；The fire resistant resin: N-methyl pyrrolidones: the weight percent of methylisobutylketone is respectively 2-15%:50-
75%:15-41%；
Electrode 4 is plated by water or PVD vacuum sputtering is formed on 3 surface of insulating layer；The PVD vacuum sputtering coating, first
Vacuum sputtering chromium material layer, again the vacuum sputtering nickel material layer in chromium material layer in high pressure resistant insulation material layer, finally in nickel
Vacuum sputtering silver material layer in material layer；Or in vacuum sputtering layer of aluminum in high pressure resistant insulation material layer, it is located at aluminum material
Vacuum sputtering nickel material layer on layer is located at vacuum sputtering tin material layer on nickel material layer.
The embodiment of the above is only the preferred embodiment of the utility model, and the reality of the utility model is not limited with this
It applies range, therefore all shapes according to the utility model, changes made by principle, should all cover in the protection scope of the utility model
It is interior.
Claims (4)
1. a kind of signal filters EMI inductor, it is characterised in that: it includes soft magnetic core (1), and soft magnetic core (1) is in " work "
Font or " I " font, coiling has coil (2) on center pillar, and soft magnetic core (1) surface forms insulating layer by insulator-coating
(3), (1) two end surfaces of soft magnetic core are equipped with electrode (4), and coil (2) is connect with electrode (4), and soft magnetic core (1) bottom is equipped with bottom
Plate (5).
2. a kind of signal according to claim 1 filters EMI inductor, it is characterised in that: electrode (4) by water plating or
PVD vacuum sputtering is formed on insulating layer (3) surface.
3. a kind of signal according to claim 1 filters EMI inductor, it is characterised in that: soft magnetic core (1) material uses
Nickel-zinc ferrite or MnZn ferrite material are made.
4. a kind of signal according to claim 1 filters EMI inductor, it is characterised in that: soft magnetic core (1) by center pillar and
The I-shaped or " I " font that end plate is constituted, end plate are located at center pillar both ends, the convex formation electrode position in both ends at the top of end plate, electrode
It (4) is in " 7 " font, cross wall is located at electrode position surface, and perpendicular wall is located on end plate lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821535916.7U CN208753121U (en) | 2018-09-20 | 2018-09-20 | A kind of signal filtering EMI inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821535916.7U CN208753121U (en) | 2018-09-20 | 2018-09-20 | A kind of signal filtering EMI inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753121U true CN208753121U (en) | 2019-04-16 |
Family
ID=66083611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821535916.7U Active CN208753121U (en) | 2018-09-20 | 2018-09-20 | A kind of signal filtering EMI inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208753121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206643A (en) * | 2022-05-17 | 2022-10-18 | 东莞市三体微电子技术有限公司 | Integrated small-size power inductor and manufacturing method thereof |
-
2018
- 2018-09-20 CN CN201821535916.7U patent/CN208753121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206643A (en) * | 2022-05-17 | 2022-10-18 | 东莞市三体微电子技术有限公司 | Integrated small-size power inductor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231211 Address after: 417009 Taihe Industrial Park, Loudi Economic Development Zone, Hunan Province Patentee after: CYGE ELECTRONIC TECHNOLOGY (HUNAN) Co.,Ltd. Address before: Unit 3, 7th Floor, Convention and Exhibition Center, No. 1 Software Park Road, Tangjiawan Town, High tech Zone, Zhuhai City, Guangdong Province, 519080 Patentee before: Zhuhai Group Innovation New Materials Technology Co.,Ltd. |