CN107369545A - A kind of non-crystaline amorphous metal magnetic core current transformer - Google Patents
A kind of non-crystaline amorphous metal magnetic core current transformer Download PDFInfo
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- CN107369545A CN107369545A CN201710666895.6A CN201710666895A CN107369545A CN 107369545 A CN107369545 A CN 107369545A CN 201710666895 A CN201710666895 A CN 201710666895A CN 107369545 A CN107369545 A CN 107369545A
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- amorphous metal
- crystaline amorphous
- magnetic core
- metal magnetic
- transformer
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
-
- 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
- H01F1/14—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 metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
-
- 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
- H01F27/02—Casings
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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
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/288—Shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a kind of non-crystaline amorphous metal magnetic core current transformer; including non-crystaline amorphous metal magnetic core; the non-crystaline amorphous metal magnetic core includes magnetic band around ring, magnetic core protective film, transformer secondary side winding and transformer shielding protection film; the magnetic band is wound into ring-type around ring by non-crystaline amorphous metal magnetic band; the magnetic band is coated with the magnetic core protective film around ring; the transformer secondary side winding is wound with the magnetic core protective film, the surface of the transformer secondary side winding is also enclosed with the transformer shielding protection film；The non-crystaline amorphous metal magnetic band includes following element：Silicon 4%~6%, boron 2%~3%, aluminium 1.0%~1.5%, cobalt 0.8%~1.1%, yttrium 0.05%~0.10%, molybdenum 0.2%~0.4%, the iron of gallium 0.10%~0.15% and surplus.The present invention has preferable electromagnetic performance, exciting power relatively low, meets actual operation requirements.
Description
Technical field
The present invention relates to a kind of accuracy transformer product technical field, particularly a kind of non-crystaline amorphous metal magnetic core Current Mutual Inductance
Device.
Background technology
Non-crystaline amorphous metal magnetic band has excellent magnetic property, be mainly used in the small-sized high-accuracy property magnetic core of transformer of coiling,
The product such as current transformer core and voltage transformer magnetic core；Using the magnetic core of non-crystaline amorphous metal magnetic band manufacture relative to silicon
The magnetic core of steel disc manufacture, 60%~80% can be saved, and preparation process pollution is low, therefore non-crystaline amorphous metal magnetic band is a kind of
The more material of energy-conserving and environment-protective.Fe-based amorphous alloy material is the alloy material being made up of elements such as iron, silicon, boron, its
The various aspects of performance such as high saturated magnetic induction, magnetic conductivity, exciting curent and iron loss are better than silicon steel sheet.
In Fe-based amorphous alloy system in addition to essential element iron, generally also need to add boron, silicon, aluminium, chromium, vanadium, niobium, zirconium,
The elements such as tungsten, molybdenum, yttrium, scandium, dysprosium, holmium, erbium, hafnium, gallium, these are used for the composition for replacing ferro element in the alloy, are to be used to improve
The non crystalline structure Forming ability of Fe-based amorphous alloy system.But a large amount of presence of these elements, also so that the saturation magnetic of elemental iron
Change intensity to be greatly reduced, cause the magnetic performance of Fe-based amorphous alloy system to reduce.
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of non-crystaline amorphous metal magnetic core current transformer, have compared with
Electromagnetic performance well, relatively low exciting power, working loss is low, meets actual operation requirements.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of non-crystaline amorphous metal magnetic core current transformer, including non-crystaline amorphous metal magnetic core, the non-crystaline amorphous metal magnetic core include magnetic band
Around ring, magnetic core protective film, transformer secondary side winding and transformer shielding protection film, the magnetic band is around ring by non-
Peritectic alloy magnetic band is wound into ring-type, and the magnetic band is coated with the magnetic core protective film, the magnetic around ring
It is wound with the transformer secondary side winding on core protective film, the surface of the transformer secondary side winding is also enclosed with described
Transformer shielding protection film；The non-crystaline amorphous metal magnetic band includes the element of following mass percent：Element silicon 4%~6%,
Boron element 2%~3%, aluminium element 1.0%~1.5%, cobalt element 0.8%~1.1%, yttrium 0.05%~0.10%, molybdenum element 0.2%
~0.4%, gallium element 0.10%~0.15% and the ferro element of surplus.
As the further improvement of above-mentioned technical proposal, in addition to for encapsulating the transformer envelope of the non-crystaline amorphous metal magnetic core
Casing, the transformer package casing includes annular bottom wall, lower end connects the inside cylindrical of the annular bottom wall inside edge
Wall, lower end connect the outside cylindrical wall of the annular bottom wall outer ledge；The annular bottom wall, the inside cylindrical wall and described
Outside cylindrical wall is coaxial；The non-crystaline amorphous metal magnetic core is arranged above the annular bottom wall, and the non-crystaline amorphous metal magnetic core position
Between the inside cylindrical wall and the outside cylindrical wall；Epoxy resin is filled with the transformer package casing.
As the further improvement of above-mentioned technical proposal, first annular limit is provided with the outside of the upper end of the inside cylindrical wall
Position is raised, is provided with the second annular stop projection on the outside of the upper end of the outside cylindrical wall, the first annular spacing preiection and
The second annular stop projection is coplanar.The structure is easy to infusion epoxy resin, and the non-crystaline amorphous metal magnetic core is not easy to float, from
And be advantageous to improve the qualification rate of transformer.
As the further improvement of above-mentioned technical proposal, the non-crystaline amorphous metal magnetic band includes following mass percent
Element：Element silicon 6%, boron element 3%, aluminium element 1.2%, cobalt element 0.9%, yttrium 0.08%, molybdenum element 0.3%, gallium element
0.13% and the ferro element of surplus.
As the further improvement of above-mentioned technical proposal, the thickness of the non-crystaline amorphous metal magnetic band is 35~40 microns,
The width of the non-crystaline amorphous metal magnetic band is 6~12 millimeters.
As the further improvement of above-mentioned technical proposal, the preparation method of the non-crystaline amorphous metal magnetic band is：By raw material
Put into and melting mixing is heated in smelting furnace, band then is made with single-roller rapid quenching with quenching, and the aluminium alloy contact fast quenching list melted
Temperature during roller is 1250~1300 DEG C, and temperature when non-crystaline amorphous metal magnetic band leaves fast quenching list roller surface is less than or equal to 320
~350 DEG C.
As the further improvement of above-mentioned technical proposal, the magnetic core protective film is polytetrafluoroethylene film.
As the further improvement of above-mentioned technical proposal, the transformer shielding protection film is that aluminium foil wraps up the mutual inductance
Device secondary side winding forms, and the aluminium foil contacts and polytetrafluoroethylene (PTFE) painting is coated with the face of the transformer secondary side winding
Layer.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of non-crystaline amorphous metal magnetic core current transformer provided by the present invention, have it is simple in construction, be easily assembled to produce, protect knot
The advantages of structure is reasonable, service life is long, good weatherability, good anti-tampering property；Its non-crystaline amorphous metal magnetic band saturation magnetic induction be 2.0~
Exciting power when 2.4 T, 1.35T/50Hz is 0.30~0.38 VA/kg, therefore working loss is low.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation of non-crystaline amorphous metal magnetic core current transformer of the present invention.
Embodiment
Reference picture 1, Fig. 1 are the structural representations of a specific embodiment of the invention.
As shown in figure 1, a kind of non-crystaline amorphous metal magnetic core current transformer, including non-crystaline amorphous metal magnetic core, the non-crystaline amorphous metal magnetic
Core includes magnetic band around ring 1, magnetic core protective film 2, transformer secondary side winding 3 and transformer shielding protection film 4, institute
State magnetic band and ring-type is wound into by non-crystaline amorphous metal magnetic band around ring 1, the magnetic band is described around being coated with for ring 1
Magnetic core protective film 2, the transformer secondary side winding 3, the transformer secondary side are wound with the magnetic core protective film 2
The surface of winding 3 is also enclosed with the transformer shielding protection film 4；The magnetic core protective film 2 is polytetrafluoroethylene film；
The transformer shielding protection film 4 is that the aluminium foil parcel transformer secondary side winding 3 forms, and described in aluminium foil contact
Polytetrafluorethylecoatings coatings are coated with the face of transformer secondary side winding 3.
Also include being used for the transformer package casing for encapsulating the non-crystaline amorphous metal magnetic core, the transformer package casing includes
Annular bottom wall 5, lower end connect the inside cylindrical wall 6 of the inside edge of annular bottom wall 5, lower end is connected outside the annular bottom wall 5
The outside cylindrical wall 7 of lateral edges；The annular bottom wall 5, the inside cylindrical wall 6 and the outside cylindrical wall 7 are coaxial；It is described
Non-crystaline amorphous metal magnetic core is arranged at the top of annular bottom wall 5, and the non-crystaline amorphous metal magnetic core is located at the inside cylindrical wall 6 and institute
State between outside cylindrical wall 7；Epoxy resin is filled with the transformer package casing.Outside the upper end of the inside cylindrical wall 6
Side is provided with first annular spacing preiection 8, and the second annular stop projection 9, institute are provided with the outside of the upper end of the outside cylindrical wall 7
State first annular spacing preiection 8 and second annular stop projection 9 is coplanar.
The non-crystaline amorphous metal magnetic band includes the element of following mass percent：Element silicon 4%~6%, boron element 2%~
3%th, aluminium element 1.0%~1.5%, cobalt element 0.8%~1.1%, yttrium 0.05%~0.10%, molybdenum element 0.2%~0.4%, gallium member
The ferro element of element 0.10%~0.15% and surplus.The thickness of the non-crystaline amorphous metal magnetic band is 35~40 microns, described non-
The width of peritectic alloy magnetic band is 6~12 millimeters.The preparation method of the non-crystaline amorphous metal magnetic band is：Raw material is put into
Melting mixing is heated in smelting furnace, is then made band with single-roller rapid quenching with quenching, and melt aluminium alloy contact fast quenching list roller when
Temperature is 1250~1300 DEG C, and temperature when non-crystaline amorphous metal magnetic band leaves fast quenching list roller surface is less than or equal to 320~350
℃。
Based on the above, there is provided following three specific embodiments, three specific embodiments remove the non-crystaline amorphous metal magnetic
The element composition of band is different outer, and remaining structure, technique are identical.
Specific embodiment 1
The non-crystaline amorphous metal magnetic band that the present embodiment provides includes the element of following mass percent：Element silicon 6%, boron member
Plain 3%, the iron member of aluminium element 1.2%, cobalt element 0.9%, yttrium 0.08%, molybdenum element 0.3%, gallium element 0.13% and surplus
Element.
The non-crystaline amorphous metal magnetic band saturation magnetic induction that the present embodiment provides is 2.4 T, excitatory during 1.35T/50Hz
Power is 0.30 VA/kg.
Specific embodiment 2
The non-crystaline amorphous metal magnetic band that the present embodiment provides includes the element of following mass percent：Element silicon 4%, boron member
Plain 2%, the iron member of aluminium element 1.5%, cobalt element 1.1%, yttrium 0.10%, molybdenum element 0.2%, gallium element 0.10% and surplus
Element.
The non-crystaline amorphous metal magnetic band saturation magnetic induction that the present embodiment provides is 2.2 T, excitatory during 1.35T/50Hz
Power is 0.38 VA/kg.
Specific embodiment 3
The non-crystaline amorphous metal magnetic band that the present embodiment provides includes the element of following mass percent：Element silicon 5%, boron member
Plain 2.5%, the iron of aluminium element 1.0%, cobalt element 0.8%, yttrium 0.05%, molybdenum element 0.4%, gallium element 0.15% and surplus
Element.
The non-crystaline amorphous metal magnetic band saturation magnetic induction that the present embodiment provides is 2.0 T, excitatory during 1.35T/50Hz
Power is 0.34 VA/kg.
The preferable implementation to the present invention is illustrated above, and certainly, the present invention can also use and above-mentioned implementation
The different form of mode, the equivalent conversion that those skilled in the art are made on the premise of without prejudice to spirit of the invention
Or corresponding change, it should all belong in protection scope of the present invention.
Claims (8)
- A kind of 1. non-crystaline amorphous metal magnetic core current transformer, it is characterised in that：Including non-crystaline amorphous metal magnetic core, the non-crystaline amorphous metal magnetic core Including magnetic band around ring（1）, magnetic core protective film（2）, transformer secondary side winding（3）And transformer shielding protection film （4）, the magnetic band is around ring（1）Ring-type is wound into by non-crystaline amorphous metal magnetic band, the magnetic band is around ring（1）Surface It is enclosed with the magnetic core protective film（2）, the magnetic core protective film（2）On be wound with the transformer secondary side winding（3）, The transformer secondary side winding（3）Surface be also enclosed with the transformer shielding protection film（4）；The non-crystaline amorphous metal magnetic Property band includes the element of following mass percent：Element silicon 4%~6%, boron element 2%~3%, aluminium element 1.0%~1.5%, cobalt Element 0.8%~1.1%, yttrium 0.05%~0.10%, molybdenum element 0.2%~0.4%, gallium element 0.10%~0.15%, Yi Jiyu The ferro element of amount.
- A kind of 2. non-crystaline amorphous metal magnetic core current transformer according to claim 1, it is characterised in that：Also include being used to encapsulate The transformer package casing of the non-crystaline amorphous metal magnetic core, the transformer package casing include annular bottom wall（5）, lower end connection institute State annular bottom wall（5）The inside cylindrical wall of inside edge（6）, lower end connect the annular bottom wall（5）The outside circle of outer ledge Barrel（7）；The annular bottom wall（5）, the inside cylindrical wall（6）With the outside cylindrical wall（7）It is coaxial；The amorphous closes Golden magnetic core is arranged at the annular bottom wall（5）Top, and the non-crystaline amorphous metal magnetic core is located at the inside cylindrical wall（6）With it is described Outside cylindrical wall（7）Between；Epoxy resin is filled with the transformer package casing.
- A kind of 3. non-crystaline amorphous metal magnetic core current transformer according to claim 2, it is characterised in that：The inside cylindrical wall （6）Upper end on the outside of be provided with first annular spacing preiection（8）, the outside cylindrical wall（7）Upper end on the outside of be provided with second Annular stop is raised（9）, the first annular spacing preiection（8）It is raised with second annular stop（9）It is coplanar.
- A kind of 4. non-crystaline amorphous metal magnetic core current transformer according to claim 1, it is characterised in that：The non-crystaline amorphous metal magnetic Property band includes the element of following mass percent：Element silicon 6%, boron element 3%, aluminium element 1.2%, cobalt element 0.9%, yttrium 0.08%th, the ferro element of molybdenum element 0.3%, gallium element 0.13% and surplus.
- A kind of 5. non-crystaline amorphous metal magnetic core current transformer according to claim 4, it is characterised in that：The non-crystaline amorphous metal magnetic Property band thickness be 35~40 microns, the width of the non-crystaline amorphous metal magnetic band is 6~12 millimeters.
- A kind of 6. non-crystaline amorphous metal magnetic core current transformer according to claim 5, it is characterised in that：The non-crystaline amorphous metal magnetic The preparation method of property band is：Raw material is put into melting mixing is heated in smelting furnace, band then is made with single-roller rapid quenching with quenching, And the temperature during aluminium alloy contact fast quenching list roller of melting is 1250~1300 DEG C, non-crystaline amorphous metal magnetic band leaves fast quenching list roller Temperature during surface is less than or equal to 320~350 DEG C.
- A kind of 7. non-crystaline amorphous metal magnetic core current transformer according to claim 1, it is characterised in that：The magnetic core protection is thin Film（2）For polytetrafluoroethylene film.
- A kind of 8. non-crystaline amorphous metal magnetic core current transformer according to claim 1, it is characterised in that：The transformer shielding Protective film（4）The transformer secondary side winding is wrapped up for aluminium foil（3）Form, and the aluminium foil contact transformer is secondary Side winding（3）Face on be coated with polytetrafluorethylecoatings coatings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666895.6A CN107369545B (en) | 2017-08-07 | 2017-08-07 | A kind of amorphous alloy magnetic core current transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666895.6A CN107369545B (en) | 2017-08-07 | 2017-08-07 | A kind of amorphous alloy magnetic core current transformer |
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| Publication Number | Publication Date |
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| CN107369545A true CN107369545A (en) | 2017-11-21 |
| CN107369545B CN107369545B (en) | 2019-03-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930004A (en) * | 2018-07-21 | 2018-12-04 | 芜湖君华材料有限公司 | A kind of transformer core iron-base amorphous alloy material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4037407A1 (en) * | 1989-12-05 | 1991-06-06 | Asea Brown Boveri | Clip-on transformer giving improved measuring repeatability - uses self-aligning interlocking joints in toroidal core |
| CN101432827A (en) * | 2006-04-28 | 2009-05-13 | 日立金属株式会社 | Magnetic core for current transformer, current transformer, and watt-hour meter |
| CN202996512U (en) * | 2012-12-24 | 2013-06-12 | 秦皇岛市燕秦纳米科技有限公司 | Amorphous alloy core |
| CN205828127U (en) * | 2016-06-24 | 2016-12-21 | 福建创四方电子有限公司 | A kind of threephase current transformer |
-
2017
- 2017-08-07 CN CN201710666895.6A patent/CN107369545B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4037407A1 (en) * | 1989-12-05 | 1991-06-06 | Asea Brown Boveri | Clip-on transformer giving improved measuring repeatability - uses self-aligning interlocking joints in toroidal core |
| CN101432827A (en) * | 2006-04-28 | 2009-05-13 | 日立金属株式会社 | Magnetic core for current transformer, current transformer, and watt-hour meter |
| CN202996512U (en) * | 2012-12-24 | 2013-06-12 | 秦皇岛市燕秦纳米科技有限公司 | Amorphous alloy core |
| CN205828127U (en) * | 2016-06-24 | 2016-12-21 | 福建创四方电子有限公司 | A kind of threephase current transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930004A (en) * | 2018-07-21 | 2018-12-04 | 芜湖君华材料有限公司 | A kind of transformer core iron-base amorphous alloy material |
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