CN103714946A - Magnetic integrated inductor with mixed magnetic circuit - Google Patents
Magnetic integrated inductor with mixed magnetic circuit Download PDFInfo
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- CN103714946A CN103714946A CN201410025014.9A CN201410025014A CN103714946A CN 103714946 A CN103714946 A CN 103714946A CN 201410025014 A CN201410025014 A CN 201410025014A CN 103714946 A CN103714946 A CN 103714946A
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- 230000035699 permeability Effects 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 229910002796 Si–Al Inorganic materials 0.000 claims description 6
- 235000013312 flour Nutrition 0.000 claims description 6
- 239000006247 magnetic powder Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 5
- 230000001808 coupling effect Effects 0.000 abstract description 4
- 239000011162 core material Substances 0.000 description 133
- 239000002360 explosive Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- 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
- H01F27/255—Magnetic cores made from particles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention relates to a magnetic integrated inductor with a mixed magnetic circuit. The magnetic integrated inductor comprises a magnetic core and two groups of coils, wherein the magnetic core is formed by tightly assembling two flatbed magnetic cores which are positioned at the upper side and the lower side of the magnetic core, two first magnetic core columns which are positioned between the two flatbed magnetic cores, positioned at the left ends and the right ends of the flatbed magnetic cores and used for winding the two groups of coils, and two second magnetic core columns which are respectively positioned at the middle of the upper edge and the lower edge of an overlooking angle of the flatbed magnetic cores. The magnetic integrated inductor not only can be used for maintaining a high coupling effect but also can be used for improving the self-coupling inductance of the coils to a maximum extent.
Description
Technical field
The present invention relates to inductor, relate in particular to a kind of mixed magnetic circuit magnetic integrated inductor.
Background technology
In prior art, the core material of magnetic integrated inductor adopts the FERRITE CORE that high frequency characteristics is good, loss ratio is lower and relative permeability is higher conventionally, and general relative permeability is more than 2000H/m.Yet, because the core material at each position of magnetic circuit is the same, magnetic permeability is high, magnetic core is very easily saturated, for preventing the generation of this problem, in the triangle core post of coil windings inner magnet stem stem and winding outside, be provided with a plurality of fine air gaps, to attempt to reach the object that prevents that magnetic core is saturated and reduce air gap periphery leakage field.
Although said structure can be avoided winding coil around a large amount of flux leakages and the phenomenon of the sensed heating of coil that causes to a great extent, complex structure, is unfavorable for volume production; Simultaneously owing to there being the air gap of certain physical size, cannot essence ground solve magnetic core leakage field and the problem of the coil eddy current loss brought.
In order effectively to address the above problem, the physical size of controlling air gap is zero or reaches minimum limit, can avoid again magnetic resistance in magnetic circuit to decline simultaneously and the magnetic core saturation problem brought, the present invention proposes the new method of a set of head it off.
Summary of the invention
For solving above-mentioned technical problem of the prior art, thereby the present invention realizes different magnetic permeabilitys by changing the material formation of magnetic core in magnetic integrated inductor, and a kind of brand-new mixed magnetic circuit magnetic integrated inductor is provided.
The invention provides a kind of mixed magnetic circuit magnetic integrated inductor, comprise magnetic core and two groups of coils, magnetic core is closely assembled by following part: two dull and stereotyped magnetic cores, and two dull and stereotyped magnetic cores are positioned at the both sides up and down of magnetic core; Two the first core post, two the first core post are between two dull and stereotyped magnetic cores and lay respectively at the two ends, left and right of dull and stereotyped magnetic core, and two the first core post are for two groups of coils of coiling; And two the second core post, two the second core post lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core depression angle; Wherein, dull and stereotyped magnetic core consists of the Ferrite Material of the first magnetic permeability, the first magnetic permeability is higher than 1000H/m, whole or a part of metal crimp powder materials by the second magnetic permeability of the first core post form, the second magnetic permeability is lower than 500H/m, the second core post consists of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.
According to an aspect of the present invention, the cross section of dull and stereotyped magnetic core is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, and wherein, two the second core post are between two dull and stereotyped magnetic cores.
According to an aspect of the present invention, the cross section of dull and stereotyped magnetic core is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, but the center position on the upper and lower both sides of hexagon is respectively equipped with the breach mating completely with the shape of the second core post, wherein, the side close fit of the side of the close coil of two the second core post and breach.
According to an aspect of the present invention, the core of the above-below direction of the first core post consists of metal crimp powder material, and remainder consists of Ferrite Material.
According to an aspect of the present invention, the first core post is shaped as cylinder, cylindroid or polygon prism.
According to an aspect of the present invention, the second core post is shaped as triangular prism.
According to an aspect of the present invention, the side of the close coil of two the second core post is that the circular-arc concave surface or the many ribs that parallel with coil are recessed.
According to an aspect of the present invention, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.
According to an aspect of the present invention, the first magnetic permeability is in the scope of 1000～4000H/m.
According to an aspect of the present invention, the second magnetic permeability and the 3rd magnetic permeability are in the scope of 20～300H/m.
Should be appreciated that more than the present invention generality is described and the following detailed description is all exemplary and explanat, and be intended to the further explanation that the invention provides for as claimed in claim.
Accompanying drawing explanation
Comprise that accompanying drawing is for providing, the present invention further to be understood, they are included and form the application's a part, and accompanying drawing shows embodiments of the invention, and with together with this specification, play the effect of explaining the principle of the invention.In accompanying drawing:
Fig. 1 is according to the three-dimensional explosive view of the magnetic core in the mixed magnetic circuit magnetic integrated inductor of first embodiment of the invention.
Fig. 2 is according to the three-dimensional explosive view of the magnetic core in the mixed magnetic circuit magnetic integrated inductor of second embodiment of the invention.
Fig. 3 (a) is according to the three-dimensional explosive view of the magnetic core in the mixed magnetic circuit magnetic integrated inductor of third embodiment of the invention.
Fig. 3 (b) is according to the end view of the magnetic core in the mixed magnetic circuit magnetic integrated inductor of third embodiment of the invention.
Embodiment
With detailed reference to accompanying drawing, embodiments of the invention are described now.
Fig. 1 is according to the three-dimensional explosive view of the magnetic core 100 in the mixed magnetic circuit magnetic integrated inductor of first embodiment of the invention.As shown in Figure 1, the magnetic core 100 in mixed magnetic circuit magnetic integrated inductor of the present invention is closely assembled by following part: 110, two dull and stereotyped magnetic cores 110 of two dull and stereotyped magnetic cores are positioned at the both sides up and down of magnetic core 100; 120, two the first core post 120 of two the first core post are between two dull and stereotyped magnetic cores 110 and lay respectively at the two ends, left and right of dull and stereotyped magnetic core 110, and two the first core post 120 are for two groups of coils of coiling; And 130, two the second core post 130 of two the second core post lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core 110 depression angles.Dull and stereotyped magnetic core 110 consists of the Ferrite Material of the first magnetic permeability, and the first magnetic permeability is higher than 1000H/m.The first core post 120 consists of the metal crimp powder material of the second magnetic permeability, and the second magnetic permeability is lower than 500H/m.The second core post 130 consists of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.The magnetic core each several part closely junction of assembling does not have air gap or has the thin air gap that is less than 1 millimeter.Such design, when two groups of coils that can coiling on guaranteeing two the first core post 120 have ideal coupling effect, has avoided again the saturated of two the second core post 130 and has reduced to greatest extent coil air gap leakage field problem around.
In one embodiment, the first magnetic permeability is in the scope of 1000～4000H/m.In one embodiment of the invention, the cross section of dull and stereotyped magnetic core 110 is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, but the center position on the upper and lower both sides of hexagon is respectively equipped with the breach mating completely with the shape of the second core post 130, wherein, the side of the close coil of two the second core post 130 and the side close fit of breach.The second core post this damascene structures of 130 use and dull and stereotyped magnetic core 110 are assembled, and have greatly improved the bonded area of two magnetic cores, can prevent that little the caused ferrite of contact area of dull and stereotyped magnetic core 110 and the second core post 130 is saturated at contact-making surface place.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20～300H/m.Can conveniently regulate the coupling coefficient of two coils and obtain to greatest extent larger self coupling inductance.In one embodiment of the invention, the first core post 120 is shaped as cylinder, cylindroid or polygon prism.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20～300H/m.In one embodiment of the invention, the second core post 130 is shaped as triangular prism.In one embodiment, the side of the close coil of two the second core post 130 is that the circular-arc concave surface or the many ribs that parallel with coil are recessed.
Fig. 2 is according to the three-dimensional explosive view of the magnetic core 200 in the mixed magnetic circuit magnetic integrated inductor of second embodiment of the invention.As shown in Figure 2, the magnetic core 200 in mixed magnetic circuit magnetic integrated inductor of the present invention is closely assembled by following part: 210, two dull and stereotyped magnetic cores 210 of two dull and stereotyped magnetic cores are positioned at the both sides up and down of magnetic core 200; 220, two the first core post 220 of two the first core post are between two dull and stereotyped magnetic cores 210 and lay respectively at the two ends, left and right of dull and stereotyped magnetic core 210, and two the first core post 220 are for two groups of coils of coiling; And 230, two the second core post 230 of two the second core post lay respectively at the center position on the both sides up and down of dull and stereotyped magnetic core 210 depression angles between two dull and stereotyped magnetic cores 210.Dull and stereotyped magnetic core 210 consists of the Ferrite Material of the first magnetic permeability, and the first magnetic permeability is higher than 1000H/m.The first core post 220 consists of the metal crimp powder material of the second magnetic permeability, and the second magnetic permeability is lower than 500H/m.The second core post 230 consists of the metal crimp powder material of the 3rd magnetic permeability, and the 3rd magnetic permeability is lower than 500H/m and lower than the second magnetic permeability.The magnetic core each several part closely junction of assembling does not have air gap or has the thin air gap that is less than 1 millimeter.Such design, when two groups of coils that can coiling on guaranteeing two the first core post 120 have ideal coupling effect, has avoided again the saturated of two the second core post 130 and has reduced to greatest extent coil air gap leakage field problem around.
In one embodiment, the first magnetic permeability is in the scope of 1000～4000H/m.
With shape and the assembled relation difference of the dull and stereotyped magnetic core 110 shown in Fig. 1 and the second core post 130 be, the cross section of the dull and stereotyped magnetic core 210 shown in Fig. 2 is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, and opening is not established on the upper and lower both sides of this hexagon.Two the second core post 230 are between two dull and stereotyped magnetic cores 210.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20～300H/m.Can conveniently regulate the coupling coefficient of two coils and obtain to greatest extent larger self coupling inductance.In one embodiment of the invention, the first core post 220 is shaped as cylinder, cylindroid or polygon prism.
In one embodiment, metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.In one embodiment, the second magnetic permeability is in the scope of 20～300H/m.In one embodiment of the invention, the second core post 230 is shaped as triangular prism.In one embodiment, the side of the close coil of two the second core post 230 is that the circular-arc concave surface or the many ribs that parallel with coil are recessed.
Magnetic core 200 forms mixed magnetic circuit magnetic integrated inductor of the present invention together with two groups of coils, and wherein, two groups of coils are respectively in two the first core post 220.Coil is coiled into by copper cash, copper-clad aluminum conductor or aluminum steel.
Fig. 3 (a) is according to the three-dimensional explosive view of the magnetic core 300 in the mixed magnetic circuit magnetic integrated inductor of third embodiment of the invention.Fig. 3 (b) is according to the end view of the magnetic core 300 in the mixed magnetic circuit magnetic integrated inductor of third embodiment of the invention.With reference to Fig. 3 (a) and 3(b) visible, and the first core post 120 differences shown in Fig. 1 are, a part for the first core post 320 consists of the metal crimp powder material of the second magnetic permeability, and remainder consists of Ferrite Material.All the other compositions of the magnetic core 300 of Fig. 3 (a) are identical with the magnetic core 100 shown in Fig. 1, do not repeat them here.
In one embodiment, the core 322 of the above-below direction of the first core post 320 consists of metal crimp powder material, and remainder 324 consists of Ferrite Material.The remainder 324 of the first core post 320, owing to being all Ferrite Material with dull and stereotyped magnetic core 310, therefore also can be considered as being a part for dull and stereotyped magnetic core 310, one-body molded.By the part that metal crimp powder material in the first core post 320 is formed, shorten and be placed on upper and lower center, and adopting identical shaped Ferrite Material at remainder 324.Such structure can regulate, promote the equivalent relative permeability of the first core post 320 of coil inside, make equivalent relative permeability well beyond only using metal crimp powder material to form the resulting magnetic permeability of the first core post, thereby, the relative permeability for the relative permeability of the first core post 320 of coiling considerably beyond the second core post 330 of non-winding section.Those of ordinary skill in the art can understand, use the length of the part of different materials to carry out various adjustment according to needed magnetic permeability, the part that metal crimp powder material forms be not limited to Fig. 3 (a) and (b) shown in position and length, can be also other position or length.The magnetic integrated inductor forming in this way can either keep high coupling effect, can promote to greatest extent again the inductance value of coil self coupling.
Those skilled in the art can be obvious, can carry out various modifications and variations and without departing from the spirit and scope of the present invention to above-mentioned exemplary embodiment of the present invention.Therefore, be intended to that the present invention is covered and drop within the scope of appended claims and equivalence techniques scheme thereof to modification of the present invention and modification.
Claims (10)
1. a mixed magnetic circuit magnetic integrated inductor, comprises magnetic core and two groups of coils, and described magnetic core is closely assembled by following part:
Two dull and stereotyped magnetic cores, two described dull and stereotyped magnetic cores are positioned at the both sides up and down of described magnetic core;
Two the first core post, two described the first core post are between two described dull and stereotyped magnetic cores and lay respectively at the two ends, left and right of described dull and stereotyped magnetic core, and two described the first core post are for two groups of coils described in coiling; And
Two the second core post, two described the second core post lay respectively at the center position on the both sides up and down of described dull and stereotyped magnetic core depression angle;
Wherein,
Described dull and stereotyped magnetic core consists of the Ferrite Material of the first magnetic permeability, and described the first magnetic permeability is higher than 1000H/m,
Whole or a part of metal crimp powder materials by the second magnetic permeability of described the first core post form, and described the second magnetic permeability is lower than 500H/m,
Described the second core post consists of the metal crimp powder material of the 3rd magnetic permeability, and described the 3rd magnetic permeability is lower than 500H/m and lower than described the second magnetic permeability.
2. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the cross section of described dull and stereotyped magnetic core is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, and wherein, two described the second core post are between two described dull and stereotyped magnetic cores.
3. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, it is characterized in that, the cross section of described dull and stereotyped magnetic core is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides, but the center position on the upper and lower both sides of described hexagon is respectively equipped with the breach mating completely with the shape of described the second core post, wherein, the side close fit of the side of the close described coil of two described the second core post and described breach.
4. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, the core of the above-below direction of described the first core post consists of metal crimp powder material, and remainder consists of Ferrite Material.
5. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, described the first core post be shaped as cylinder, cylindroid or polygon prism.
6. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, described the second core post be shaped as triangular prism.
7. mixed magnetic circuit magnetic integrated inductor as claimed in claim 6, is characterized in that, the side of the close described coil of two described the second core post is that the circular-arc concave surface or the many ribs that parallel with described coil are recessed.
8. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, described metal crimp powder material is iron silica flour core, iron Si-Al Magnetic Powder Core or amorphous core.
9. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, described the first magnetic permeability is in the scope of 1000～4000H/m.
10. mixed magnetic circuit magnetic integrated inductor as claimed in claim 1, is characterized in that, described the second magnetic permeability and described the 3rd magnetic permeability are in the scope of 20～300H/m.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025014.9A CN103714946B (en) | 2014-01-20 | 2014-01-20 | Mixed magnetic circuit magnetic integrated inductor |
| PCT/CN2014/089966 WO2015106594A1 (en) | 2014-01-20 | 2014-10-31 | Hybrid excitation magnetic integrated inductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025014.9A CN103714946B (en) | 2014-01-20 | 2014-01-20 | Mixed magnetic circuit magnetic integrated inductor |
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| CN103714946A true CN103714946A (en) | 2014-04-09 |
| CN103714946B CN103714946B (en) | 2016-02-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103971894A (en) * | 2014-05-27 | 2014-08-06 | 田村（中国）企业管理有限公司 | Magnetic coupling inductor and magnetic core thereof |
| CN106205967A (en) * | 2016-06-21 | 2016-12-07 | 广东电网有限责任公司电力科学研究院 | A kind of core construction, saturation type current limiter and saturable reactor |
| CN107045927A (en) * | 2016-02-05 | 2017-08-15 | 胜美达集团株式会社 | Magnetic parts |
| CN107705957A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | New integrated inductor |
| CN110277224A (en) * | 2019-05-31 | 2019-09-24 | 华为技术有限公司 | A kind of power inductance magnetic core and power inductance |
| CN115583832A (en) * | 2022-09-09 | 2023-01-10 | 华为数字能源技术有限公司 | Magnetic core and preparation method thereof, common-mode inductor and electronic device |
| CN117594333A (en) * | 2023-12-12 | 2024-02-23 | 山东艾诺智能仪器有限公司 | High-power magnetic integrated LLC high-frequency inductance transformer and three-phase bidirectional LLC circuit |
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| CN103971894B (en) * | 2014-05-27 | 2016-08-31 | 田村（中国）企业管理有限公司 | magnetically coupled inductors and magnetic core thereof |
| CN107045927A (en) * | 2016-02-05 | 2017-08-15 | 胜美达集团株式会社 | Magnetic parts |
| CN106205967A (en) * | 2016-06-21 | 2016-12-07 | 广东电网有限责任公司电力科学研究院 | A kind of core construction, saturation type current limiter and saturable reactor |
| CN107705957A (en) * | 2016-08-08 | 2018-02-16 | 杭州中恒电气股份有限公司 | New integrated inductor |
| CN110277224A (en) * | 2019-05-31 | 2019-09-24 | 华为技术有限公司 | A kind of power inductance magnetic core and power inductance |
| CN115583832A (en) * | 2022-09-09 | 2023-01-10 | 华为数字能源技术有限公司 | Magnetic core and preparation method thereof, common-mode inductor and electronic device |
| CN115583832B (en) * | 2022-09-09 | 2023-09-29 | 华为数字能源技术有限公司 | Magnetic core, preparation method thereof, common-mode inductor and electronic device |
| CN117594333A (en) * | 2023-12-12 | 2024-02-23 | 山东艾诺智能仪器有限公司 | High-power magnetic integrated LLC high-frequency inductance transformer and three-phase bidirectional LLC circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103714946B (en) | 2016-02-24 |
| WO2015106594A1 (en) | 2015-07-23 |
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