CN203690040U - Amorphous common-mode inductor - Google Patents
Amorphous common-mode inductor Download PDFInfo
- Publication number
- CN203690040U CN203690040U CN201320886862.XU CN201320886862U CN203690040U CN 203690040 U CN203690040 U CN 203690040U CN 201320886862 U CN201320886862 U CN 201320886862U CN 203690040 U CN203690040 U CN 203690040U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- core layer
- ring
- amorphous alloy
- amorphous
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an amorphous common-mode inductor which comprises a pedestal and a magnetic core ring. The bottom of the pedestal is provided with a pin, and the pedestal is provided with a fixed support which is provided with the circular magnetic core ring in a passing-through manner. The magnetic core ring comprises an inner insulating layer, an iron-based amorphous-alloy magnetic core layer, an NiCuZn ferrite nanocrystalline magnetic core layer, a cobalt-based amorphous-alloy magnetic core layer, and an outer insulating layer. Two sides of the magnetic core ring are symmetrically wound by a plurality of turns of inductive coil, and an end part of the inductive coil is connected with the pin on the pedestal. The common-mode inductor provided by the utility model is small in size, is low in iron loss, is high in magnetic conductivity, is good in stability of temperature, is excellent in resistance to DC magnetic bias saturability, and the like. The magnetic core of the common-mode inductor is a soft magnet with low power consumption and anti-electromagnetic interference, is formed by the stacking of various types of materials, can inhibit common-mode noise well, can filter out EMI harmonic waves, can absorb the peak generated by a switching power supply, can prevent surge from damaging devices, reduces the size of a circuit, and improves the stability and reliability of a system.
Description
Technical field
The utility model relates to a kind of inductance element, especially relates to a kind of amorphous common mode inductance.
Background technology
Electronic component in working order time, is an electromagnetic interference object, is again an interference source.Electromagnetic interference can be divided into two classes: series mode interference and common mode disturbances.The series mode interference function of current is between two signal line, its conduction orientation is consistent with waveform and signal code, the common mode disturbances function of current is between signal line and ground wire, and disturbance current respectively flows through 1/2nd and in the same way in two signal line, and take ground wire as common return.If common mode current filters without decay, common mode disturbances electric current is just easy to produce electromagnetic radiation so.U.S. FCC, international wireless electrical interference special commission's the standard criterion such as CISPR22 and the GB9254 of China all has relevant limit to common mode conducted interference and the radiation of Information Technology Equipment.Traditional common mode inductance magnetic core generally adopts silicon steel sheet preparation, and ferrite cost is low, but its saturation induction density is low, and adjusting range is narrow, and temperature stability is poor, has limited the range of application of common mode inductance.
Non-crystalline material is a kind of new function material, to utilize the technique of preparing amorphous, once form the strip of approximately 30 microns of thickness. when the molten steel of melting adopts advanced chilling rapid solidification, liquid metal is formed to the solid strip of thickness as 0.03mm left and right take 1 × 10-6 ℃/sec cooling rate, obtain thering is shortrange order in atomic arrangement combination, the amorphous structure feature of the unordered feature of long-range, do not possess the crystal structure of conventional alloys material Here it is non-crystaline amorphous metal. when to be cooled fast to like this thickness be only the metal sheet band of tens microns, the atomic disorder arrangement architecture that molten steel has just " is freezed ", form so-called " amorphous alloy ".
Summary of the invention
The utility model object is to provide a kind of amorphous common mode inductance, to solve the technical problems such as existing common mode inductance saturation induction density is low, adjusting range is narrow, temperature stability is poor, range of application is restricted.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of amorphous common mode inductance, comprises base, magnetic core ring; Described base bottom is provided with pin, is provided with fixed support on base, places circular magnetic core ring on fixed support; Described magnetic core ring comprises the inner insulating layer that is positioned at ring, inner insulating layer is arranged with Fe-based amorphous alloy core layer outward, Fe-based amorphous alloy core layer is arranged with the brilliant core layer of NiCuZn ferrite nano outward, the brilliant core layer of NiCuZn ferrite nano is arranged with cobalt base amorphous alloy core layer outward, and cobalt base amorphous alloy core layer is arranged with external insulation layer outward; Be arranged with some circle inductance coils in magnetic core ring bilateral symmetry, the end of inductance coil is connected with the pin on base.
As preferably, described magnetic core ring is arranged with shell outward, is compounded with magnetic sheet coated inductance coil in shell.
As preferably, described Fe-based amorphous alloy core layer, the brilliant core layer of NiCuZn ferrite nano, cobalt base amorphous alloy core layer Thickness Ratio are 3:1:1.
As preferably, described fixed support comprises top braces ring, bottom support ring, and the holding of bottom support ring is on base, and top braces ring is connected by connecting plate with bottom support ring.
As preferably, described Fe-based amorphous alloy core layer is the loop configuration being turned to by Fe-based amorphous nanometer band.
As preferably, described cobalt base amorphous alloy layer is the loop configuration being turned to by cobalt base amorphous alloy band.
The utlity model has the advantages such as size is little, iron loss is little, magnetic permeability is high, inductance is high, temperature stability is good, anti-DC-bias saturability is good.The magnetic core of this common mode inductance is the soft magnetic bodies of a kind of low-power consumption, anti-electromagnetic interference, is to be formed by stacking by various material, and Fe-based amorphous alloy core layer magnetic is strong, low price, and the performances such as magnetic permeability, exciting curent and iron loss are better than silicon steel sheet.The brilliant core layer of NiCuZn ferrite nano has high magnetic permeability, high saturation magnetization and low-coercivity, but also has the features such as low-loss, high resistivity.Cobalt base amorphous alloy core layer magnetic permeability is high, iron loss is low, coercive force is low.The utility model amorphous common mode inductance combines the advantage of various materials, can well suppress common-mode noise, filtering EMI harmonic wave, absorb the spike that Switching Power Supply produces, avoid surge voltage to damage device, reduce circuit size, improve stability and the reliability of system.Product is mainly used in high-tech sector, as digital communication, electromagnetic compatibility (EMC), rf broadband, anti-electromagnetic interference (EMI), high definition demonstration, automotive electronics, high-fidelity, high sensitivity, low-power consumption electro-acoustic element etc. are applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of common mode inductance;
Fig. 3 is support bracket fastened structural representation.
Fig. 4 is support bracket fastened left view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the structural representation of common mode inductance, and Fig. 3 is support bracket fastened structural representation, and Fig. 4 is support bracket fastened left view.
As seen from the figure, this amorphous common mode inductance, comprises base 1, magnetic core ring 3.Its base 1 bottom is provided with pin 12, is provided with fixed support 2 on base 1, and fixed support 2 comprises top braces ring 21, bottom support ring 22, and 22 holdings of bottom support ring are on base 1, and top braces ring 21 is connected by connecting plate 23 with bottom support ring 22.
On fixed support 2, place circular magnetic core ring 3, magnetic core ring 3 comprises the inner insulating layer 4 that is positioned at ring, the outer Fe-based amorphous alloy core layer 5 that is arranged with of inner insulating layer 4, the outer brilliant core layer 6 of NiCuZn ferrite nano that is arranged with of Fe-based amorphous alloy core layer 5, the outer cobalt base amorphous alloy core layer 7 that is arranged with of the brilliant core layer 6 of NiCuZn ferrite nano, the outer external insulation layer 8 that is arranged with of cobalt base amorphous alloy core layer 7, each layer bonding by jelly.Wherein, Fe-based amorphous alloy core layer 5, the brilliant core layer 6 of NiCuZn ferrite nano, cobalt base amorphous alloy core layer 7 Thickness Ratios are 3:1:1.
Be arranged with some circle inductance coils 9 in magnetic core ring 3 bilateral symmetry, the end of inductance coil 9 is connected with the pin 12 on base 1.Magnetic core ring 3 is outer is arranged with shell 10, in shell 10, is compounded with magnetic sheet coated inductance coil 9 11.
The brilliant core layer 6 of NiCuZn ferrite nano can adopt the brilliant material of existing NiCuZn ferrite nano to make, also can prepare with reference to following methods: by ferrous sulfate, zinc nitrate, nickel nitrate, copper nitrate in proportion (as Ni0.3, Cu0.13, Zn0.56, Fe2.01) add distilled water to be configured to the metal ion solution of 1mol/L, solution is heated to 80 ℃ and constantly stirring, take a certain amount of ammonium oxalate and be configured to 2mol/L solution as precipitation reagent, then add the ethylene glycol of ammonium oxalate solution weight 1%, metal ion solution in stirring is splashed in precipitant solution, titration finishes rear maintenance temperature and stirs 1 hour, make it abundant reaction, stop titration, ageing 2 hours, finally solution is cooled to room temperature, with deionized water and absolute ethanol washing repeatedly, put into after oven drying, obtain NiCuZn ferrite presoma, then presoma is risen to 180 ℃ by room temperature, programming rate is 10 ℃/min, be incubated 10 hours, then be warming up to 800 ℃ by 180 ℃, programming rate is 30 ℃/min, temperature retention time is 150min, last air cooling is to room temperature, obtain nanometer crystalline Ni CuZn ferrite powder, be pressed into circular rings sheet low-temperature sintering and obtain the brilliant core layer of NiCuZn ferrite nano.
Fe-based amorphous alloy core layer 5 is the loop configuration that turned to by the Fe-based amorphous nanometer band of thickness 25-30um.
Cobalt base amorphous alloy layer 7 is the loop configuration that turned to by cobalt base amorphous alloy band.
This amorphous common mode inductance selects soft magnetic material to be composited, and Fe-based amorphous nanometer magnetic core permeability, exciting curent and iron loss are all better than ordinary silicon steel disc, are suitable for manufacturing high-power inductance.The brilliant magnetic core of NiCuZn ferrite nano has high magnetic permeability and operating frequency, and magnetic permeability is very little with the variation of magnetic flux density and temperature, the common mode inductance that adopts nanometer crystalline Ni CuZn FERRITE CORE to make, only need little coil turn, can obtain very large inductance, thereby reduce copper loss, save wire rod, simplify circuit structure, reduce the volume and weight of inductance, in very wide frequency range, suppress common mode disturbances.Cobalt base amorphous alloy magnetic core magnetic is weak but magnetic permeability is high, can greatly improve adaptability and the reliability of element to environment.The common mode inductance that adopts above-mentioned material to make can well suppress common-mode noise, and filtering EMI harmonic wave absorbs the spike that Switching Power Supply produces, and avoids surge voltage to damage device, reduces circuit size size.
Following table is the Character Comparison of the utility model common mode inductance magnetic core ring and existing silicon sheet core:
Iron core prepared by table 1 the utility model and the contrast of ferrite iron core magnetic property
Known by data in table, the magnetic core ring that the utility model adopts Fe-based amorphous alloy core layer, the brilliant core layer of NiCuZn ferrite nano, cobalt base amorphous alloy core layer composite material to prepare, its density is little compared with silicon steel sheet, characteristic is better than current material, can reduce production costs, reduce power consumption, improve the performance of common mode inductance.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-mentioned embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all should think and belong to protection range of the present utility model.
Claims (6)
1. an amorphous common mode inductance, comprises base, magnetic core ring; It is characterized in that described base bottom is provided with pin, on base, be provided with fixed support, on fixed support, place circular magnetic core ring; Described magnetic core ring comprises the inner insulating layer that is positioned at ring, inner insulating layer is arranged with Fe-based amorphous alloy core layer outward, Fe-based amorphous alloy core layer is arranged with the brilliant core layer of NiCuZn ferrite nano outward, the brilliant core layer of NiCuZn ferrite nano is arranged with cobalt base amorphous alloy core layer outward, and cobalt base amorphous alloy core layer is arranged with external insulation layer outward; Be arranged with some circle inductance coils in magnetic core ring bilateral symmetry, the end of inductance coil is connected with the pin on base.
2. amorphous common mode inductance according to claim 1, is characterized in that described magnetic core ring is arranged with shell outward, is compounded with in shell magnetic sheet coated inductance coil.
3. amorphous common mode inductance according to claim 1, is characterized in that described Fe-based amorphous alloy core layer, the brilliant core layer of NiCuZn ferrite nano, cobalt base amorphous alloy core layer Thickness Ratio are 3:1:1.
4. amorphous common mode inductance according to claim 1, is characterized in that described fixed support comprises top braces ring, bottom support ring, and the holding of bottom support ring is on base, and top braces ring is connected by connecting plate with bottom support ring.
5. amorphous common mode inductance according to claim 1, is characterized in that described Fe-based amorphous alloy core layer is the loop configuration being turned to by Fe-based amorphous nanometer band.
6. amorphous common mode inductance according to claim 1, is characterized in that described cobalt base amorphous alloy layer is the loop configuration being turned to by cobalt base amorphous alloy band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886862.XU CN203690040U (en) | 2013-12-31 | 2013-12-31 | Amorphous common-mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886862.XU CN203690040U (en) | 2013-12-31 | 2013-12-31 | Amorphous common-mode inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690040U true CN203690040U (en) | 2014-07-02 |
Family
ID=51011914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886862.XU Expired - Fee Related CN203690040U (en) | 2013-12-31 | 2013-12-31 | Amorphous common-mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680818A (en) * | 2013-12-31 | 2014-03-26 | 周涛 | Amorphous common mode inductor |
| CN104157394A (en) * | 2014-08-28 | 2014-11-19 | 东莞市大忠电子有限公司 | Amorphous magnetic ring inductor facilitating wire winding |
-
2013
- 2013-12-31 CN CN201320886862.XU patent/CN203690040U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680818A (en) * | 2013-12-31 | 2014-03-26 | 周涛 | Amorphous common mode inductor |
| CN103680818B (en) * | 2013-12-31 | 2016-04-20 | 湖北智权专利技术应用开发有限公司 | A kind of amorphous common mode inductance |
| CN104157394A (en) * | 2014-08-28 | 2014-11-19 | 东莞市大忠电子有限公司 | Amorphous magnetic ring inductor facilitating wire winding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202839232U (en) | Magnetic core and magnetic element | |
| CN103680818B (en) | A kind of amorphous common mode inductance | |
| CN103107013B (en) | A kind of preparation technology of alloy soft magnetic powder core | |
| CN103310937B (en) | A kind of high saturated magnetic induction iron cobalt-based nano-crystal soft-magnetic powder core and preparation method thereof | |
| CN203690040U (en) | Amorphous common-mode inductor | |
| CN102360725A (en) | Magnetic differential mode and common mode integrated inductor | |
| CN102969107A (en) | Nano-crystalline magnetic powder core with magnetic conductivity of mu=60 | |
| CN204695902U (en) | Interleaving PFC integrating electro sensor | |
| CN204651128U (en) | A kind of mixed magnetic circuit inductor | |
| CN104240890B (en) | A kind of powder core | |
| CN206134404U (en) | Nanocrystalline magnetic core of iron -based | |
| CN203607208U (en) | Shielding type power chip inductor | |
| CN202110928U (en) | Large-current magnetic shielding inductor | |
| CN202049839U (en) | Ferrite core | |
| CN212874227U (en) | Difference-common mode integrated inductor and EMI filter | |
| CN110379578B (en) | Low-cost rare earth-free magnetic material and preparation method thereof | |
| CN205542267U (en) | Variable frequency air conditioner high frequency PFC inductance | |
| CN204315356U (en) | Inductor | |
| CN203690061U (en) | Output filter reactor | |
| CN102693827A (en) | High-performance nanocrystal magnetic core | |
| CN103760399A (en) | Method for manufacturing Hall current sensor by using ferrite and Hall current sensor | |
| CN221040799U (en) | Amorphous magnetic ring vehicle-mounted audio frequency inductor | |
| CN217214352U (en) | Element structure of inductance transformer | |
| CN212847924U (en) | Magnetic core, magnetic integrated device and circuit board, domestic appliance thereof | |
| CN103021628B (en) | A kind of common mode inductance, common-mode filter and Switching Power Supply electromagnetism compatible circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20211231 |