CN107393688A - Magnetic core and the inductance device for having the magnetic core - Google Patents
Magnetic core and the inductance device for having the magnetic core Download PDFInfo
- Publication number
- CN107393688A CN107393688A CN201610321768.8A CN201610321768A CN107393688A CN 107393688 A CN107393688 A CN 107393688A CN 201610321768 A CN201610321768 A CN 201610321768A CN 107393688 A CN107393688 A CN 107393688A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- pellet
- magnetic
- glue
- pellets
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 97
- 239000008188 pellet Substances 0.000 claims abstract description 45
- 239000003292 glue Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000004323 axial length Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 206010054949 Metaplasia Diseases 0.000 abstract description 3
- 230000015689 metaplastic ossification Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- -1 iron aluminum silicon Chemical compound 0.000 description 2
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000005300 metallic glass Substances 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011863 silicon-based powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
A kind of magnetic core, it includes at least two pellets and at least two pellet is connected to the tack coat to form an entirety.Because magnetic core is separately to be prepared to be bonded to an entirety again by least two pellets; and then longer dimension, high density, the needs of good magnetic electricity performance can be met; it is higher than integrally formed magnetic core density; magnetic electricity performance is more excellent; it can significantly extend press die service life simultaneously; production cost is reduced, is adapted to the magnetic core of the lot-size metaplasia production different length under normal pressures.The invention further relates to a kind of inductance device for having the magnetic core.
Description
Technical field
The present invention relates to a kind of magnetic core and has the inductance device of the magnetic core.
Background technology
The inductance core of high current often uses metal magnetic powder core.With the increase of power, required inductance core size also constantly increases.Metal magnetic powder core is to be molded directly into type by metal magnetic, due to not having sintering densification process, in order to obtain density is high, performance is good magnetic core, it is necessary to which high compaction pressures ensure high density.Powder core size is bigger, and required pressure is also higher, does not otherwise just reach required magnetic property.However, improving pressure easily causes burn failure or explosion.
The content of the invention
In view of this, it is necessary to which a kind of magnetic core for avoiding above mentioned problem and the inductance device with the magnetic core are provided.
A kind of magnetic core, the magnetic core include at least two pellets and at least two pellet are connected to the tack coat to form an entirety.
Further, the magnetic core is cylinder.
Further, at least two pellet is the consistent sector structure of size shape, and the radian of the pellet is 2 π/N, and wherein N is that the quantity of pellet is the integer more than or equal to 2.
Further, the edge of each pellet is provided with chamfering.
Further, the pellet along the direction application pressure pressed metal magnetic perpendicular with the axial direction of the magnetic core by forming.
Further, the ratio of the axial length of the magnetic core and transverse width is more than 1.
Further, the tack coat is the glue-line that glue curing forms.
Further, the glue is magnetic glue.
Further, the surface coating antirust liquid layer of the pellet.
A kind of inductance device, it includes magnetic core as described above, and the coil being sheathed on the magnetic core.
Relative to prior art, magnetic core provided by the invention and the inductance device for having the magnetic core, the magnetic core includes at least two pellets, and an entirety is bonded to by tack coat between the pellet, because magnetic core is separately to be prepared to be bonded to an entirety again by least two pellets, and then longer dimension can be met, high density, the needs of good magnetic electricity performance, it is higher than integrally formed magnetic core density, magnetic electricity performance is more excellent, it can significantly extend press die service life simultaneously, reduce production cost, it is adapted to the magnetic core of the lot-size metaplasia production different length under normal pressures.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the inductance device of first embodiment of the invention.
Fig. 2 is the diagrammatic cross-section of II-II along Fig. 1 inductance device.
Main element symbol description
| Inductance device | 100 |
| Magnetic core | 20 |
| Pellet | 22 |
| Top surface | 221 |
| Bottom surface | 223 |
| Cambered surface | 225 |
| Joint face | 227 |
| Tack coat | 24 |
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.In the case where not conflicting, the feature in following embodiment and embodiment can be mutually combined.
It should be noted that in the present invention, when a component is considered as with another component " being connected ", it can be joined directly together with another component or be indirectly connected by component placed in the middle and another component.
Unless otherwise defined, all of technologies and scientific terms used here by the article is identical with belonging to the implication that the those skilled in the art of the present invention are generally understood that.Term used in the description of the invention herein is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.
Refer to shown in Fig. 1, first embodiment of the invention provides a kind of inductance device 100, and the inductance device 100 includes magnetic core 20 and the coil 40 being sheathed on the magnetic core 20.
Refer to shown in Fig. 2, the magnetic core 20 is generally cylindrical body, and it includes two pellets 22 and tack coat 24.Each pellet 22 is substantially in semicylinder shape, and it includes top surface 221, bottom surface 223, cambered surface 225 and joint face 227.The top surface 221 and the bottom surface 223 are oppositely arranged.The cambered surface 225 is connected between the top surface 221 and the bottom surface 223 and is connected between the top surface 221 and the bottom surface 223 and is connected with the cambered surface 225 positioned at the outside of the magnetic core 20, the joint face 227.The edge that the top surface 221 is connected with the cambered surface 225, and the edge that the bottom surface 223 is connected with the cambered surface 225 forms chamfering 27, to avoid under larger briquetting pressure, easily cause stress concentration in blank edge, product is caused to ftracture, and the processing of chamfering is advantageous to discharge internal stress rapidly, the yield rate of product is improved.The quantity of the pellet 22 can be three or more than three, and the quantity of the pellet 22 is set into N number of, and the radian of the pellet 22 is 2 π/N, wherein：N is the integer more than or equal to 2, and the radius of the pellet 22 is consistent with the radius of the magnetic core 20, and the quantity of pellet 22 is set to six as will be described, and six pellets 22 are sector structure, and the radian of six pellets 22 is identical.It is appreciated that the size of at least two pellets 22 can be with unequal.
Described two pellets 22 are connected to form a complete cylinder by the tack coat 24 between the joint face 227 of two pellets 22.
In present embodiment, a diameter of 100mm of the magnetic core 20, the tack coat 24 is glue-line；The tack coat 24 is that magnetic glue curing forms, the magnetic glue is the magnetic glue of Ferrious material alloy soft magnetic epoxy-resin systems, it is the mixture of magnetic base material and bonding substrates, the magnetic base material is metallic iron silicochromium (FeSiCr) alloyed powder.The bonding substrates are one kind in epoxy resin, silicones, silica gel, polyester, acrylic resin；The pellet 22 is formed by metal magnetic compacting, the ratio of the axial length of the magnetic core 20 and the diameter of the magnetic core 20 is more than 1, the metal magnetic is metallic iron silicochromium (FeSiCr) alloyed powder, the metal magnetic is alternatively other materials, such as iron nickel 50 (FeNi50) alloyed powder, carbonyl iron dust, permalloy (MPP) powder, non-crystaline amorphous metal powder, nanometer crystal alloy powder, iron silica flour, one kind of iron aluminum silicon powder, the granularity of the metal magnetic is 200 mesh；The magnetic base material is alternatively other metal magnetics, such as iron nickel 50 (FeNi50) alloyed powder, carbonyl iron dust, permalloy (MPP) powder, non-crystaline amorphous metal powder, nanometer crystal alloy powder, iron silica flour, one kind of iron aluminum silicon powder.
Tradition is prepared in magnetic core technique, and the axial direction that briquetting pressure prepares magnetic core needed for applies, and is caused in the longer cylinder magnetic core of preparation length, obtained magnetic core density does not reach requirement, influences the magnetic property of magnetic core.It is appreciated that all edges of the pellet 22 can carry out chamfering.
Further, antirust solution is coated on the cambered surface 225, the top surface 221 and the bottom surface 223, prevents the magnetic core 20 from getting rusty.
In present embodiment, when preparing the pellet 22, axially direction of the briquetting pressure along the substantially vertical magnetic core 20 applies, the pellet 22 is prepared, magnetic glue is coated on the joint face 227 of two pellets 22, two pellets 22 bond pressing and form magnetic core 20, and the pellet 22 is formed because briquetting pressure edge applies pressure pressed metal magnetic with the perpendicular direction of the axial direction of the magnetic core 20, the density of pellet 22 can be ensured, and then ensure the good magnetic property of the magnetic core 20.
In the present invention; highdensity pellet 22 is pieced together to required magnetic core 20; large scale magnetic core high density, the needs of good magnetic electricity performance can be met; it is higher than integrally formed magnetic core density; magnetic electricity performance is more excellent; press die service life can significantly be extended simultaneously, reduce production cost, be adapted to the lot-size metaplasia under normal pressures to produce various sizes of magnetic core.
It is appreciated that the magnetic core 20 is not limited to as cylinder, it can be other shapes, such as cuboid, round platform shape, the pellet 22 is not limited to semicylinder, and it can be the shapes such as cuboid, and the axial length of the magnetic core 20 and the ratio of transverse width are more than 1.
It is appreciated that the diameter of the magnetic core 20 is not limited to the size that the present invention discloses, it can carry out setting preparation according to being actually needed.
Formed it is appreciated that the tack coat 24 can not also be magnetic glue curing, it can be formed by other glue or adhesive, such as one kind in epoxy resin, silicones, silica gel, polyester, acrylic resin.
It is understood that those skilled in the art can also do the design that other changes etc. are used in the present invention in spirit of the invention, without departing from the technique effect of the present invention.These changes done according to present invention spirit, it should all be included within scope of the present invention.
Claims (10)
- A kind of 1. magnetic core, it is characterised in that：The magnetic core includes at least two pellets and at least two pellet is connected to the tack coat to form an entirety.
- 2. magnetic core as claimed in claim 1, it is characterised in that：The magnetic core is cylinder.
- 3. magnetic core as claimed in claim 1, it is characterised in that：At least two pellet is the consistent sector structure of size shape, and the radian of the pellet is 2 π/N, and wherein N is the quantity of pellet and is the integer more than or equal to 2.
- 4. magnetic core as claimed in claim 1, it is characterised in that：The edge of each pellet is provided with chamfering.
- 5. magnetic core as claimed in claim 1, it is characterised in that：The pellet along the direction application pressure pressed metal magnetic perpendicular with the axial direction of the magnetic core by forming.
- 6. magnetic core as claimed in claim 1, it is characterised in that：The axial length of the magnetic core and the ratio of transverse width are more than 1.
- 7. magnetic core as claimed in claim 1, it is characterised in that：The tack coat is the glue-line that glue curing forms.
- 8. magnetic core as claimed in claim 7, it is characterised in that：The glue is magnetic glue.
- 9. magnetic core as claimed in claim 1, it is characterised in that：The surface coating antirust liquid layer of the pellet.
- 10. a kind of inductance device, it includes the magnetic core as described in claim 1 to claim 9 any one, and the coil being sheathed on the magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321768.8A CN107393688B (en) | 2016-05-16 | 2016-05-16 | Magnetic core and inductance device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321768.8A CN107393688B (en) | 2016-05-16 | 2016-05-16 | Magnetic core and inductance device with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393688A true CN107393688A (en) | 2017-11-24 |
| CN107393688B CN107393688B (en) | 2024-06-18 |
Family
ID=60337696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610321768.8A Active CN107393688B (en) | 2016-05-16 | 2016-05-16 | Magnetic core and inductance device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107393688B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190830A1 (en) * | 2001-03-23 | 2002-12-19 | Tokin Corporation | Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same |
| JP2007281186A (en) * | 2006-04-06 | 2007-10-25 | Hitachi Metals Ltd | Composite magnetic core and reactor |
| CN101697309A (en) * | 2009-10-27 | 2010-04-21 | 深圳顺络电子股份有限公司 | Coil element of winding inductor and manufacturing method thereof |
| CN201655472U (en) * | 2009-10-27 | 2010-11-24 | 深圳顺络电子股份有限公司 | Winding inductance coil part |
| CN102176367A (en) * | 2011-01-20 | 2011-09-07 | 唐山尚新融大电子产品有限公司 | Method for manufacturing metal magnetic powder core can-type magnetic core and magnetic core with high direct current superposition characteristics |
| CN102770921A (en) * | 2009-12-04 | 2012-11-07 | 原子能与替代能源委员会 | Nuclear fuel rod and method for manufacturing pellets for such a fuel rod |
| CN102942886A (en) * | 2012-11-16 | 2013-02-27 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Magneto-conductivity gluewater and application thereof |
| CN203931744U (en) * | 2014-06-16 | 2014-11-05 | 横店集团东磁股份有限公司 | A kind of big column metal magnetic powder core |
| CN104700984A (en) * | 2009-07-09 | 2015-06-10 | 乾坤科技股份有限公司 | Chocker |
| CN105206389A (en) * | 2015-09-30 | 2015-12-30 | 广东威灵电机制造有限公司 | Inductor |
| CN205050677U (en) * | 2015-08-28 | 2016-02-24 | 深圳市铂科新材料股份有限公司 | Novel cylindrical combination magnetic core |
-
2016
- 2016-05-16 CN CN201610321768.8A patent/CN107393688B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190830A1 (en) * | 2001-03-23 | 2002-12-19 | Tokin Corporation | Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same |
| JP2007281186A (en) * | 2006-04-06 | 2007-10-25 | Hitachi Metals Ltd | Composite magnetic core and reactor |
| CN104700984A (en) * | 2009-07-09 | 2015-06-10 | 乾坤科技股份有限公司 | Chocker |
| CN101697309A (en) * | 2009-10-27 | 2010-04-21 | 深圳顺络电子股份有限公司 | Coil element of winding inductor and manufacturing method thereof |
| CN201655472U (en) * | 2009-10-27 | 2010-11-24 | 深圳顺络电子股份有限公司 | Winding inductance coil part |
| CN102770921A (en) * | 2009-12-04 | 2012-11-07 | 原子能与替代能源委员会 | Nuclear fuel rod and method for manufacturing pellets for such a fuel rod |
| CN102176367A (en) * | 2011-01-20 | 2011-09-07 | 唐山尚新融大电子产品有限公司 | Method for manufacturing metal magnetic powder core can-type magnetic core and magnetic core with high direct current superposition characteristics |
| CN102942886A (en) * | 2012-11-16 | 2013-02-27 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Magneto-conductivity gluewater and application thereof |
| CN203931744U (en) * | 2014-06-16 | 2014-11-05 | 横店集团东磁股份有限公司 | A kind of big column metal magnetic powder core |
| CN205050677U (en) * | 2015-08-28 | 2016-02-24 | 深圳市铂科新材料股份有限公司 | Novel cylindrical combination magnetic core |
| CN105206389A (en) * | 2015-09-30 | 2015-12-30 | 广东威灵电机制造有限公司 | Inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107393688B (en) | 2024-06-18 |
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