CN2505959Y - Functional material composite structure magnetic core - Google Patents
Functional material composite structure magnetic core Download PDFInfo
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- CN2505959Y CN2505959Y CN 01227200 CN01227200U CN2505959Y CN 2505959 Y CN2505959 Y CN 2505959Y CN 01227200 CN01227200 CN 01227200 CN 01227200 U CN01227200 U CN 01227200U CN 2505959 Y CN2505959 Y CN 2505959Y
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- magnetic
- magnetic core
- vallecular cavity
- ring
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Abstract
The utility model relates to a functional material composite structure magnetic core, which is mainly formed by magnetic cores in regular geometry shape and made by magnetic material and comprises a box provided with a groove cavity and a through hole and a built-in magnetic core arranged in the groove cavity; the utility model is characterized in that the groove cavity is provided with a plurality of partition layers which divide the groove cavity into a plurality of ring grooves communicated mutually; the ring grooves are respectively provided with a plurality of built-in magnetic cores. The utility model has the advantages that the application frequency band is wide, the applicable temperature scope is big, electromagnetic compatibility features are extended and the continuously constant and stable electromagnetic features and break can meet the requirements of the electronic technology; the general excellent performance and corresponding matching features are reflected in induction transfer of power transmission signal and noise wave control. Different performance requirements can be realized by only simple structure transfer, such as changing cover or built-in magnetic core, which is hard to win in the prior art.
Description
Technical field
The utility model relates to a kind of magnetic device, particularly a kind of functional material composite construction magnetic core.
Background technology
The used magnetic device is that single magnetic material is made mostly in fields such as power electronics and communication at present, as soft magnetic materials such as ferrite, ferrocart core, permalloy, non-crystalline material, micro crystal material, silicon steel, also useful two kinds of different magnetic materials are made sheet and are stacked and make magnetic core together.No matter be homogenous material or two kinds of different magnetic materials stack together magnetic core, all can not effectively bring into play the combination property of multiple material.Saturated magnetic induction as the ferrite of high magnetic permeability and nickel zinc high frequency ferrite is not high, and permeability is lower, and temperature stability is general, and Curie point is lower, but the frequency of utilization wide ranges, up to the megahertz level, stress sensitivity is little, low price; The ferrocart core permeability is low, and stress sensitivity is little, and saturated magnetic induction is higher, and price is also cheap; Silicon steel low frequency DC and AC characteristics is all good, and stress sensitivity is little, low price; Permalloy has excellent low frequency, the comprehensive soft magnet performance of intermediate frequency, but the price height, stress sensitivity is strong; Amorphous and microcrystallizing alloy soft magnetic material have more excellent low frequency, intermediate frequency soft magnetic characteristic, but stress sensitivity is stronger, and price is higher.The performance of various homogenous materials is always both advantageous and disadvantageous, as making their advantage complementation, just it need be used in combination, variation by combining structure reaches B-H magnetic hysteresis loop change of shape, thereby cause that corresponding electromagnetic property parameter changes, obtain continuously or the electromagnetic property of sudden change, with the power electronics that adapts to continuous development and the various requirement of mechanics of communication.
Summary of the invention
Technical problem to be solved in the utility model is at the above-mentioned deficiency of prior art, and to provide a kind of usefulness functional material composite construction magnetic core that one or more magnetic materials are made, by simple structural change realization multiple use.
Above-mentioned technical problem of the present utility model is realized by following technical scheme.
A kind of functional material composite construction magnetic core mainly is the magnetic core with regular geometric shapes that is made of magnetic material, comprising: one contains the box with through hole of vallecular cavity, and internal magnetic core is loaded in the vallecular cavity of this box body; It is characterized in that: be provided with a plurality of interlayers in this vallecular cavity, interlayer is separated the annular groove that vallecular cavity becomes a plurality of connections; A plurality of internal magnetic cores are housed respectively in this annular groove.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
This box with through hole that contains vallecular cavity is that the cross section is the tubular ring flask of rectangle vallecular cavity, and this tubular ring flask is a circular ring type or oval ring-like or square is ring-like, the centre bore that said through hole promptly encircles.
This box with through hole that contains vallecular cavity is the double walled globoid, and this globoid is provided with the through hole that is communicated with the ectonexine wall, constitutes the vallecular cavity that is interconnected between the hole wall of through hole and the ectonexine wall, and above-mentioned a plurality of interlayers are to be the setting of homocentric sphere wall.
This cross section is made up of a U-loop groove shape box body and the ring-type lid that is covered on the U-shaped opening of this U-loop groove shape box body by the tubular ring flask of rectangle vallecular cavity.
The ring-type box of this rectangular tubular section is made up of the ring-type lid of a U-loop groove shape box body and a U-loop groove shape, and the ring-type lid of this U-loop groove shape is fastened on this U-loop groove shape box body.
The a plurality of internal magnetic cores that are loaded in these a plurality of annular grooves are that one or more layers is made of different magnetic materials or same magnetic material.
This box body and lid are to be made by high magnetic conduction ferrite or power ferrite or ferrocart core; This internal magnetic core is to be made by high magnetic conduction ferrite, power ferrite, ferrocart core, permalloy, amorphous magnetic material, crystallite magnetic material.
The outside of containing the box with through hole of vallecular cavity is surrounded by insulating barrier, is provided with insulating barrier between internal magnetic core and the vallecular cavity.
Have magnetic or insulating washer on each internal magnetic core.
Internal magnetic core is provided with opening, is provided with wide magnetic or insulation spacer in opening part.
Advantage of the present utility model is: application band broadening, temperature limit expansion, electromagnetic compatibility characteristic enlarge, the lasting steady and the sudden change of electromagnetic property more can be satisfied the requirement of electronic technology; Power becomes aspects such as feed signals inductive transfer, the ripple control of making an uproar and demonstrates comprehensive excellent properties and corresponding matching properties, only need simple mapped structure, such as, lid or internal magnetic core changed, can realize different performance requirements, this is difficult to accomplish in the prior art.
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:
Description of drawings
Fig. 1 is that the master of annular boxlike core structure looks schematic diagram.
Fig. 2 is the cross-sectional schematic of overlooking of annular boxlike core structure.
Fig. 3 is that the master of square annular boxlike core structure looks schematic diagram.
Fig. 4 is the cross-sectional schematic of overlooking of square annular boxlike core structure.
Fig. 5 is that the master of oval annular boxlike core structure looks schematic diagram.
Fig. 6 is the cross-sectional schematic of overlooking of oval annular boxlike core structure.
Embodiment
Shown in Fig. 1,2,3,4,5,6, a kind of functional material composite construction magnetic core provided by the utility model, mainly be the magnetic core with regular geometric shapes that is made of magnetic material, wherein: one contains the box with through hole of vallecular cavity, and internal magnetic core 3 is loaded in the vallecular cavity of this box; It is characterized in that: be provided with a plurality of interlayers 5 in this vallecular cavity, interlayer 5 is separated the annular groove that vallecular cavity becomes a plurality of connections; A plurality of internal magnetic cores 3 are housed respectively in this annular groove.
This box with through hole that contains vallecular cavity is that the cross section is the tubular ring flask of rectangle vallecular cavity, this tubular ring flask is circular ring type (as shown in Figure 1, 2) or oval ring-like (shown in Fig. 3,4) or square ring-like (shown in Fig. 5,6), the centre bore that said through hole promptly encircles.
This box with through hole that contains vallecular cavity also can be the double walled globoid, and this globoid is provided with the through hole that is communicated with the ectonexine wall, constitutes the vallecular cavity that is interconnected between the hole wall of through hole and the ectonexine wall, and above-mentioned a plurality of interlayers are to be the setting of homocentric sphere wall.
This cross section is made up of a U-loop groove shape box body 1 and the ring-type lid 2 that is covered on the U-shaped opening of this U-loop groove shape box body 1 by the tubular ring flask of rectangle vallecular cavity.
The ring-type box of this rectangular tubular section is made up of the ring-type lid 2 ' institute of a U-loop groove shape box body 1 and a U-loop groove shape, and the ring-type lid 2 ' of this U-loop groove shape is fastened on this U-loop groove shape box body 1.
The a plurality of internal magnetic cores 3 that are loaded in these a plurality of annular grooves are that one or more layers is made of different magnetic materials or same magnetic material.
This contains the box with through hole of vallecular cavity, and box body 1 wherein and lid 2,2 ' are to be made by high magnetic conduction ferrite or power ferrite or ferrocart core; This internal magnetic core 3 is to be made by high magnetic conduction ferrite or power ferrite or ferrocart core or permalloy or amorphous magnetic material or crystallite magnetic material or silicon steel.
The outside of containing the box with through hole of vallecular cavity is surrounded by insulating barrier 4, is provided with insulating barrier 4 ' between internal magnetic core 3 and the vallecular cavity.
Have the packing ring 7 of magnetic material or insulating material on each internal magnetic core 3.
Internal magnetic core 3 is provided with opening, is provided with the pad 6 of wide magnetic material or insulating material in opening part.
Enumerate concrete application example of the present utility model below, so that the utility model is had further understanding.
Embodiment 1: as shown in Figure 1, 2: adopt high magnetic conductivity ferrite TL5 initial permeability 50000 to do the annular box body 1 and the lid 2 of function material composite cores with the utility model technology, external diameter Φ 34mm, internal diameter Φ 18, ring box wall thickness 2mm, the high 9mm of box, cover thick 4mm, do insulating barrier with thick 0.5mm nylon 66 annuluss 4, do internal magnetic core 3 with ultracrystallite (nanocrystalline) initial permeability＞5000, turn to common mode inductance, the upper and lower magnetic insulation material of internal magnetic core packing ring 7 is applied to the EMI anti-interference filter, also can be used for making the capability correction device.
Embodiment 3: shown in Fig. 5,6: ring box body 1, the ring lid 2 of making oval annular of ferrocart core, in the centre of ring box groove the concentric Long Circle interlayer cell wall 5 of one circle is arranged, thickness is 1mm, set thereon, the interlayer cell wall degree of depth is identical with groove depth, respectively ultracrystallite is housed and amorphous magnetic material is made magnetic core in two Long Circle annular grooves, ring radius R 20mm in the oval ring box, outer shroud radius R 49mm, centre-to-centre spacing 50mm; The high 25mm of box, the thick 25mm of lid, the same to being fastened as complete box.Be used for DC output anti-current device magnetic core, wherein amorphous magnetic material Long Circle magnetic core can be a closed hoop, also can add pad 6 as the figure opening.
The utility model is when being used for the common mode electromagnetism sense magnetic core of EMI, single use high magnetic conductivity ferrite of past, though below the low-frequency range 100KHz, initial permeability is up to 15000, but more than low many of the initial permeability 60000-120000 of ultracrystallite internal magnetic core, low frequency noise reduction filtering effect is many than latter difference also, and the ultracrystallite internal magnetic core, but drop to a few kilogauss/oersteds of hundreds of at high band 100KHz to 500KHz or above initial permeability, and this frequency range FERRITE CORE initial permeability can maintain about 5000, like this two kinds of soft magnetic materials are combined in turn to common mode inductance in the composite construction should just can be in the 500KHz scope in the EMI anti-interference filter, effectively improve the insertion loss of interference filter, strengthen the noise reduction filtering effect, this composite construction has overcome the strong weakness of ultracrystallite soft magnetic material stress sensitivity simultaneously, and the price of composite cores is not high, the bright prospects that have market to use, and this kind magnetic core also can be used for making the capability correction device.
Use the ferrite composite construction, suit ultracrystallite, amorphous, permalloy internal magnetic core are made power transformer and are being adapted under the cooling condition, and power output is kept constant under different frequency range and field intensity.
During as outputting inductance, ferrite, ferrocart core, controlled micro crystallization amorphous internal magnetic core composite construction magnetic core can produce very big electric induction when the DC bias current changes, cause in the low current amount during than maximum current flow, inductance value has more more than 10-40 times, and this feature is exported the anti-current device of great use for the DC that makes switching power supply, and this class component is kept ongoing operation when extremely hanging down load and on some EMI purposes.
The utility model functional material composite construction magnetic core, simple in structure, easy restructures, just can realize different performance requirements, can utilize the specificity of multiple magnetic material, form comprehensive soft magnet performance excellence, the lasting steady of the composite component that Electro Magnetic Compatibility is strong, electromagnetic property and sudden change more can be satisfied the requirement of electronic technology, value and vast market prospect have a wide range of applications.
Claims (10)
1, a kind of functional material composite construction magnetic core mainly is the magnetic core with regular geometric shapes that is made of magnetic material, comprising: one contains the box with through hole of vallecular cavity, and internal magnetic core is loaded in the vallecular cavity of this box; It is characterized in that: be provided with a plurality of interlayers in this vallecular cavity, interlayer is separated the annular groove that vallecular cavity becomes a plurality of connections; A plurality of internal magnetic cores are housed respectively in this annular groove.
2, functional material composite construction magnetic core according to claim 1, it is characterized in that: this box with through hole that contains vallecular cavity is that the cross section is the tubular ring flask of rectangle vallecular cavity, this tubular ring flask is a circular ring type or oval ring-like or square is ring-like, the centre bore that said through hole promptly encircles.
3, functional material composite construction magnetic core according to claim 1, it is characterized in that: this box with through hole that contains vallecular cavity is the double walled globoid, this globoid is provided with the through hole that is communicated with the ectonexine wall, constitute the vallecular cavity that is interconnected between the hole wall of through hole and the ectonexine wall, above-mentioned a plurality of interlayers are to be the setting of homocentric sphere wall.
4, functional material composite construction magnetic core according to claim 2 is characterized in that: this cross section is made up of a U-loop groove shape box body and the ring-type lid that is covered on the U-shaped opening of this U-loop groove shape box body by the tubular ring flask of rectangle vallecular cavity.
5, functional material composite construction magnetic core according to claim 2, it is characterized in that: the ring-type box of this rectangular tubular section is made up of the ring-type lid of a U-loop groove shape box body and a U-loop groove shape, and the ring-type lid of this U-loop groove shape is fastened on this U-loop groove shape box body.
6, according to claim 1 or 2 or 3 or 4 or 5 described functional material composite construction magnetic cores, it is characterized in that: a plurality of internal magnetic cores that are loaded in these a plurality of annular grooves are that one or more layers is made of different magnetic materials or same magnetic material.
7, according to claim 1 or 2 or 3 or 4 described functional material composite construction magnetic cores, it is characterized in that: this box body and on the lid that fastened be to make by high magnetic conduction ferrite or power ferrite or ferrocart core; This internal magnetic core is to be made by high magnetic conduction ferrite, power ferrite, ferrocart core, permalloy, amorphous magnetic material, crystallite magnetic material and silicon steel.
8, according to claim 1 or 2 or 3 or 4 or 5 described functional material composite construction magnetic cores, it is characterized in that: the outside of containing the box with through hole of vallecular cavity is surrounded by insulating barrier, is provided with insulating barrier between internal magnetic core and the vallecular cavity.
9, according to claim 1 or 2 or 3 or 4 described functional material composite construction magnetic cores, it is characterized in that: have magnetic or insulating washer on each internal magnetic core.
10, according to claim 1 or 2 or 3 or 4 described functional material composite construction magnetic cores, it is characterized in that: internal magnetic core is provided with opening, is provided with wide magnetic or insulation spacer in opening part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227200 CN2505959Y (en) | 2001-06-18 | 2001-06-18 | Functional material composite structure magnetic core |
| US10/126,881 US6774756B2 (en) | 2001-04-24 | 2002-04-22 | Functional material-composite structural magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227200 CN2505959Y (en) | 2001-06-18 | 2001-06-18 | Functional material composite structure magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505959Y true CN2505959Y (en) | 2002-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01227200 Expired - Fee Related CN2505959Y (en) | 2001-04-24 | 2001-06-18 | Functional material composite structure magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505959Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202496B (en) * | 2006-10-06 | 2011-12-14 | 施耐德东芝换流器欧洲公司 | Common-mode filtering device and speed variator comprising such a device |
| CN102427625A (en) * | 2011-09-20 | 2012-04-25 | 美的集团有限公司 | Power choke coil and electromagnetic induction heating device using the same |
| CN108736655A (en) * | 2018-07-17 | 2018-11-02 | 北京新能源汽车股份有限公司 | A kind of filtering magnet ring group device and automobile |
-
2001
- 2001-06-18 CN CN 01227200 patent/CN2505959Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202496B (en) * | 2006-10-06 | 2011-12-14 | 施耐德东芝换流器欧洲公司 | Common-mode filtering device and speed variator comprising such a device |
| CN102427625A (en) * | 2011-09-20 | 2012-04-25 | 美的集团有限公司 | Power choke coil and electromagnetic induction heating device using the same |
| CN102427625B (en) * | 2011-09-20 | 2015-07-15 | 美的集团股份有限公司 | Power choking coil and electromagnetic induction heater adopting same |
| CN108736655A (en) * | 2018-07-17 | 2018-11-02 | 北京新能源汽车股份有限公司 | A kind of filtering magnet ring group device and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |