CN107492428B - A kind of amorphous alloy mutual inductor containing nanometer iron powder - Google Patents
A kind of amorphous alloy mutual inductor containing nanometer iron powder Download PDFInfo
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- CN107492428B CN107492428B CN201710688911.1A CN201710688911A CN107492428B CN 107492428 B CN107492428 B CN 107492428B CN 201710688911 A CN201710688911 A CN 201710688911A CN 107492428 B CN107492428 B CN 107492428B
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- amorphous alloy
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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
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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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
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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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
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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
- H01F27/25—Magnetic cores made from strips or ribbons
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
Abstract
The invention discloses a kind of amorphous alloy mutual inductor containing nanometer iron powder, including mutual inductor composite cores, the mutual inductor composite cores include the amorphous alloy magnetic core of ring structure and are coated on the nanometer iron powder on amorphous alloy magnetic core surface, and the nanometer iron powder includes the element of following mass percent: neodymium element 12%~14%, boron element 2.2%~2.5%, dysprosium element 0.05%~0.10%, cobalt element 0.6%~0.8%, copper 0.5%~0.6%, gallium element 0.35%~0.45%, zr element 0.6%~0.7%, titanium elements 0.2%~1.5%, surplus ferro element.The present invention provides a kind of amorphous alloy mutual inductor containing nanometer iron powder, can make the spacing between secondary winding and amorphous alloy magnetic core balanced, and initial permeability with higher.
Description
Technical field
The present invention relates to a kind of accuracy mutual inductor product technical field, especially a kind of amorphous alloy containing nanometer iron powder
Mutual inductor.
Background technique
Current transformer is mainly used for high current scaling transformation into standard small electric current, in order to realize measuring instrumentss,
Protect the standardization or miniaturization of equipment and automatic control equipment；In structure, current transformer is mainly by the one of mutually insulated
The components such as secondary winding, secondary winding, iron core and framework, shell, connecting terminal are constituted.For the purpose for realizing anti-DC component,
The magnetic core of amorphous alloy magnetic magnetic material manufacture mutual inductor is generallyd use, but there are initial magnetic conductances for amorphous alloy magnetic core mutual inductor
The lower problem of rate.
106783115 A of Chinese patent literature CN discloses a kind of anti-DC component current transformer of double-iron core, using receiving
The structure of rice brilliant magnetic core and amorphous alloy magnetic core bimag, provides higher initial permeability by nanocrystalline magnet core, non-to overcome
The lower problem of peritectic alloy magnetic core beginning magnetic conductivity.But its existing deficiency is: nanocrystalline magnet core and amorphous alloy magnetic core
The overall volume that bimag structure will lead to magnetic core is larger, and since nanocrystalline magnet core and amorphous alloy magnetic core are coaxial packages
, therefore the spacing circulation change between secondary winding and nanocrystalline magnet core and amorphous alloy magnetic core, to increase excitation function
Rate is unfavorable for reducing the operating power consumption of current transformer.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of amorphous alloy mutual inductor containing nanometer iron powder, energy
Enough make the spacing between secondary winding and amorphous alloy magnetic core balanced, and initial permeability with higher.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of amorphous alloy mutual inductor containing nanometer iron powder, including mutual inductor composite cores, the mutual inductor composite cores
Amorphous alloy magnetic core including ring structure and the nanometer iron powder for being coated on amorphous alloy magnetic core surface, the nanometer iron powder
Element comprising following mass percent: neodymium element 12%~14%, boron element 2.2%~2.5%, dysprosium element 0.05%~0.10%,
Cobalt element 0.6%~0.8%, copper 0.5%~0.6%, gallium element 0.35%~0.45%, zr element 0.6%~0.7%, titanium elements
0.2%~1.5%, the ferro element of surplus.
As a further improvement of the above technical scheme, the nanometer iron powder the preparation method comprises the following steps: by acetylacetone,2,4-pentanedione neodymium, second
Acyl acetone iron and borogen are dissolved in dehydrated alcohol obtained solution A, with nothing of the water dissolution containing remaining element in addition to neodymium, iron, boron
Machine salt obtained solution B, it is 8~10 that weak aqua ammonia is added after solution A and solution B are mixed and adjusts pH, and it is small to be sufficiently stirred rear static 24
When more than gel, to gel dehydration be placed in vacuum tightness furnace, heat 2~4 hours at 500~600 DEG C, then heat up
To 700~800 DEG C, and it is passed through the gaseous mixture of hydrogen and argon gas, hydrogen volume ratio is 5% in gaseous mixture, continues 30~60 points
Then clock cools down.
As a further improvement of the above technical scheme, the amorphous alloy magnetic core is wound by amorphous alloy magnetism band and is made
At the amorphous alloy magnetism band includes the element of following mass percent: element silicon 8%~12%, boron element 5%~8%, manganese
Element 1.0%~1.8%, cobalt element 0.5%~1.3%, vanadium 1.2%~2.2%, carbon 2.5%~4.0%, the iron of surplus are first
Element.
As a further improvement of the above technical scheme, the amorphous alloy magnetism band the preparation method comprises the following steps: will be with institute
It states amorphous alloy magnetism band element and matches identical alloy mother ingot and put into smelting furnace and be heated to 1300~1350 DEG C, sufficiently
Band is made with single-roller rapid quenching with quenching after melting, after being wound into the amorphous alloy magnetic core, it is heated to 390 in vacuum annealing furnace~
It 450 DEG C, is gradually cooled down after maintaining temperature to heat 1.5~2.5 hours.
As a further improvement of the above technical scheme, the amorphous alloy magnetism band with a thickness of 35~40 microns,
The width of the amorphous alloy magnetism band is 6~12 millimeters.
As a further improvement of the above technical scheme, it is provided in magnetic core isolation on the outside of the mutual inductor composite cores
Shell is wound with mutual inductor secondary side winding on the outside of the magnetic core isolation inner casing；The side wall of the magnetic core isolation inner casing, roof and
Several raised limit points are provided on the inside of bottom wall, the amorphous alloy magnetic core is set in the magnetic core isolation inner casing,
The nanometer iron powder is filled in the gap between the magnetic core isolation inner casing and the amorphous alloy magnetic core.The structure can
Keep the spacing between secondary winding and amorphous alloy magnetic core balanced.
It as a further improvement of the above technical scheme, further include for being encapsulated on the outside of the mutual inductor secondary side winding
Mutual inductor package casing, the mutual inductor package casing includes that annular bottom wall, lower end connect the annular bottom wall inside edge
Inside cylindrical wall, lower end connect the outside cylindrical wall of the annular bottom wall outer ledge, the annular bottom wall, inside circle
Barrel and the outside cylindrical wall are coaxial；Epoxy resin is filled in the mutual inductor package casing.
As a further improvement of the above technical scheme, first annular limit is provided on the outside of the upper end of the inside cylindrical wall
Position protrusion, is provided with the second annular stop protrusion on the outside of the upper end of the outside cylindrical wall, the first annular retention bead and
The second annular stop protrusion is coplanar.The structure is convenient for infusion epoxy resin, prevents the mutual inductor composite cores from floating.
Compared with prior art, the beneficial effects of the present invention are:
A kind of amorphous alloy mutual inductor containing nanometer iron powder provided by the present invention, can make secondary winding and amorphous alloy
Spacing between magnetic core is balanced, to reduce exciting power, advantageously reduces the operating power consumption of current transformer.It is used to receive
Rice iron powder initial permeability with higher, and the heat resistance of remanent magnetism is good；Used amorphous alloy magnetic core has preferable
Comprehensive performance: saturation magnetic induction degree is higher, and the parameters such as coercivity, exciting power and iron-loss per unit weight are lower.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of amorphous alloy mutual inductor containing nanometer iron powder of the present invention.
Specific embodiment
Referring to Fig.1, Fig. 1 is the structural schematic diagram of a specific embodiment of the invention.
As shown in Figure 1, a kind of amorphous alloy mutual inductor containing nanometer iron powder, including mutual inductor composite cores, the mutual inductance
Device composite cores include the amorphous alloy magnetic core 1 of ring structure and the nanometer iron powder for being coated on 1 surface of amorphous alloy magnetic core
2。
Specifically, the nanometer iron powder 2 includes the element of following mass percent: neodymium element 12%~14%, boron element
2.2%~2.5%, dysprosium element 0.05%~0.10%, cobalt element 0.6%~0.8%, copper 0.5%~0.6%, gallium element 0.35%~
0.45%, zr element 0.6%~0.7%, titanium elements 0.2%~1.5%, surplus ferro element.The preparation method of the nanometer iron powder 2
Are as follows:
Acetylacetone,2,4-pentanedione neodymium, ferric acetyl acetonade and borogen are dissolved in dehydrated alcohol obtained solution A, is contained with water dissolution and is removed
The inorganic salts obtained solution B of remaining element other than neodymium, iron, boron, it is 8 that weak aqua ammonia is added after solution A and solution B are mixed and adjusts pH
~10, gel is sufficiently stirred latter static 24 hours or more to obtain, gel dehydration is placed in vacuum tightness furnace, at 500~600 DEG C
Lower heating 2~4 hours, then heats to 700~800 DEG C, and be passed through the gaseous mixture of hydrogen and argon gas, hydrogen in gaseous mixture
Product continues 30~60 minutes, then cools down than being 5%.
The performance parameter of the nanometer iron powder 2 are as follows:
Room temperature remanent magnetism is 1.1~1.4 T, and remanent magnetism reduces 0.7%~2.5% after 120 DEG C plus 2 hours.
Specifically, the amorphous alloy magnetic core 1 is made of amorphous alloy magnetism band winding, the amorphous alloy magnetic recording tape
Material includes the element of following mass percent: element silicon 8%~12%, boron element 5%~8%, manganese element 1.0%~1.8%, cobalt element
0.5%~1.3%, the ferro element of vanadium 1.2%~2.2%, carbon 2.5%~4.0%, surplus.The amorphous alloy magnetic recording tape
Material the preparation method comprises the following steps:
Identical alloy mother ingot will be matched with the amorphous alloy magnetism band element and put into smelting furnace be heated to
1300~1350 DEG C, band sufficiently is made with single-roller rapid quenching with quenching after melting, after being wound into the amorphous alloy magnetic core 1, in vacuum
It is heated to 390~450 DEG C in annealing furnace, is gradually cooled down after maintaining temperature to heat 1.5~2.5 hours.The amorphous alloy
Magnetic band with a thickness of 35~40 microns, the width of the amorphous alloy magnetism band is 6~12 millimeters.
The performance parameter of the amorphous alloy magnetism band are as follows:
Saturation magnetic induction is 1.8~2.1 T, and exciting power when coercivity 2.5~2.9 A/m, 1.35T/50Hz is 0.30
Iron-loss per unit weight when~0.35 VA/kg, 1.35T/50Hz is 0.11~0.15 W/kg.
Specifically, it is provided with magnetic core isolation inner casing 3 on the outside of the mutual inductor composite cores, the magnetic core isolation inner casing 3
Outside is wound with mutual inductor secondary side winding 4；It is respectively provided on the inside of the side wall of the magnetic core isolation inner casing 3, roof and bottom wall
There are several raised limit points 5, the amorphous alloy magnetic core 1 is set in the magnetic core isolation inner casing 3, and the nanometer iron powder 2 is filled out
It fills in the gap between the magnetic core isolation inner casing 3 and the amorphous alloy magnetic core 1.It further include for being encapsulated in the mutual inductance
The mutual inductor package casing in 4 outside of device secondary side winding, the mutual inductor package casing include annular bottom wall 6, lower end connection institute
State the inside cylindrical wall 7 of 6 inside edge of annular bottom wall, lower end connects the outside cylindrical wall 8 of 6 outer ledge of annular bottom wall,
The annular bottom wall 6, the inside cylindrical wall 7 and the outside cylindrical wall 8 are coaxial；It is filled in the mutual inductor package casing
There is epoxy resin 9.First annular retention bead 10, the outside cylindrical wall 8 are provided on the outside of the upper end of the inside cylindrical wall 7
Upper end on the outside of be provided with the second annular stop protrusion 11, the first annular retention bead 10 and second annular stop are convex
It is coplanar to play 11.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also use and above-mentioned implementation
The different form of mode, those skilled in the art's made equivalent transformation on the premise of without prejudice to spirit of the invention
Or corresponding change, all it should belong in protection scope of the present invention.
Claims (7)
1. a kind of amorphous alloy mutual inductor containing nanometer iron powder, it is characterised in that: including mutual inductor composite cores, the mutual inductor
Composite cores include the amorphous alloy magnetic core (1) of ring structure and the Nanoscale Iron for being coated on amorphous alloy magnetic core (1) surface
Powder (2), the nanometer iron powder (2) they include the element of following mass percent: neodymium element 12%~14%, boron element 2.2%~
2.5%, dysprosium element 0.05%~0.10%, cobalt element 0.6%~0.8%, copper 0.5%~0.6%, gallium element 0.35%~0.45%,
Zr element 0.6%~0.7%, titanium elements 0.2%~1.5%, surplus ferro element；Magnetic is provided on the outside of the mutual inductor composite cores
Core insulation inner casing (3) is wound with mutual inductor secondary side winding (4) on the outside of the magnetic core isolation inner casing (3)；The magnetic core isolation
Several raised limit points (5), the amorphous alloy magnetic core (1) are provided on the inside of the side wall of inner casing (3), roof and bottom wall
Be set in the magnetic core isolation inner casing (3), the nanometer iron powder (2) be filled in the magnetic core isolation inner casing (3) with it is described non-
In gap between peritectic alloy magnetic core (1).
2. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 1, it is characterised in that: the Nanoscale Iron
Powder (2) the preparation method comprises the following steps: acetylacetone,2,4-pentanedione neodymium, ferric acetyl acetonade and borogen are dissolved in dehydrated alcohol obtained solution A, use water
Weak aqua ammonia is added after mixing solution A and solution B in inorganic salts obtained solution B of the dissolution containing remaining element in addition to neodymium, iron, boron
Adjusting pH is 8~10, and gel is sufficiently stirred latter static 24 hours or more to obtain, and is placed in vacuum tightness furnace to gel dehydration,
It is heated 2~4 hours at 500~600 DEG C, then heats to 700~800 DEG C, and be passed through the gaseous mixture of hydrogen and argon gas, mixed
Hydrogen volume ratio is 5% in gas, continues 30~60 minutes, is then cooled down.
3. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 1, it is characterised in that: the amorphous closes
Golden magnetic core (1) is made of amorphous alloy magnetism band winding, and the amorphous alloy magnetism band includes following mass percent
Element: element silicon 8%~12%, boron element 5%~8%, manganese element 1.0%~1.8%, cobalt element 0.5%~1.3%, vanadium 1.2%
~2.2%, carbon 2.5%~4.0%, surplus ferro element.
4. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 3, it is characterised in that: the amorphous closes
Golden magnetism band the preparation method comprises the following steps: will be matched with the amorphous alloy magnetism band element identical alloy mother ingot put into it is molten
It is heated to 1300~1350 DEG C in furnace, band sufficiently is made with single-roller rapid quenching with quenching after melting, is wound into the amorphous alloy magnetic
After core (1), 390~450 DEG C are heated in vacuum annealing furnace, gradually cooling is after maintaining temperature to heat 1.5~2.5 hours
It can.
5. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 4, it is characterised in that: the amorphous closes
Golden magnetism band with a thickness of 35~40 microns, the width of the amorphous alloy magnetism band is 6~12 millimeters.
6. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 1, it is characterised in that: further include being used for
The mutual inductor package casing being encapsulated on the outside of the mutual inductor secondary side winding (4), the mutual inductor package casing include annular
Bottom wall (6), lower end connect the inside cylindrical wall (7) of annular bottom wall (6) inside edge, lower end connects the annular bottom wall
(6) the outside cylindrical wall (8) of outer ledge, the annular bottom wall (6), the inside cylindrical wall (7) and the outside cylindrical wall
(8) coaxial；Epoxy resin (9) are filled in the mutual inductor package casing.
7. a kind of amorphous alloy mutual inductor containing nanometer iron powder according to claim 6, it is characterised in that: the inside circle
It is provided with first annular retention bead (10) on the outside of the upper end of barrel (7), is provided on the outside of the upper end of the outside cylindrical wall (8)
Second annular stop protrusion (11), the first annular retention bead (10) and second annular stop raised (11) are coplanar.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2781691C1 (en) * | 2022-01-14 | 2022-10-17 | Першина Светлана Сергеевна | Measuring current transformer |
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| CN203218076U (en) * | 2013-04-19 | 2013-09-25 | 上海日港置信非晶体金属有限公司 | Three-phase and three-column type amorphous alloy dry-type transformer and iron cores thereof |
| CN204303508U (en) * | 2014-07-15 | 2015-04-29 | 青岛菲尔泰科电子有限公司 | A kind of novel inductor structure |
| CN105280366A (en) * | 2015-10-23 | 2016-01-27 | 珠海拓普智能电气股份有限公司 | I-shaped current transformer |
| CN106486259A (en) * | 2015-08-25 | 2017-03-08 | 桐乡市伟达电子有限公司 | A kind of anti-mutual inductor with direct-current component and preparation method thereof |
| CN106783116A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of high reliability cobalt-based ferromagnetic core current transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9257895B2 (en) * | 2004-06-17 | 2016-02-09 | Grant A. MacLennan | Distributed gap inductor filter apparatus and method of use thereof |
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|---|---|---|---|---|
| CN203218076U (en) * | 2013-04-19 | 2013-09-25 | 上海日港置信非晶体金属有限公司 | Three-phase and three-column type amorphous alloy dry-type transformer and iron cores thereof |
| CN204303508U (en) * | 2014-07-15 | 2015-04-29 | 青岛菲尔泰科电子有限公司 | A kind of novel inductor structure |
| CN106486259A (en) * | 2015-08-25 | 2017-03-08 | 桐乡市伟达电子有限公司 | A kind of anti-mutual inductor with direct-current component and preparation method thereof |
| CN105280366A (en) * | 2015-10-23 | 2016-01-27 | 珠海拓普智能电气股份有限公司 | I-shaped current transformer |
| CN106783116A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of high reliability cobalt-based ferromagnetic core current transformer |
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Effective date of registration: 20201211 Address after: 241000 No.39, Yinhu North Road, economic and Technological Development Zone, Wuhu City, Anhui Province Patentee after: Zhuo Zhijie Address before: 241080 No.1 xiajiahu Road, Sanshan Economic Development Zone, Wuhu City, Anhui Province Patentee before: ANHUI JUNHUA SHUNYI ENJIA AMORPHOUS MATERIAL Co.,Ltd. |
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Effective date of registration: 20210112 Address after: 224400 No.20, Xiexin Avenue, Funing Economic Development Zone, Yancheng City, Jiangsu Province Patentee after: Jiangsu Funing Haitian Jinning Sanhuan Electronic Co.,Ltd. Address before: 241000 No.39, Yinhu North Road, economic and Technological Development Zone, Wuhu City, Anhui Province Patentee before: Zhuo Zhijie |