CN205666124U - High -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit - Google Patents
High -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit Download PDFInfo
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- CN205666124U CN205666124U CN201620481995.2U CN201620481995U CN205666124U CN 205666124 U CN205666124 U CN 205666124U CN 201620481995 U CN201620481995 U CN 201620481995U CN 205666124 U CN205666124 U CN 205666124U
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- iron core
- yoke
- magnetic circuit
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Abstract
The utility model provides a high -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit, is provided with upper yoke, lower indisputable yoke respectively including the three iron core post that is 120 symmetrical arrangements on three iron core post, upper yoke, lower indisputable yoke and three iron core support connnection an organic whole, the cross -section of iron core post is archimedes spiral. The utility model discloses a three -phase symmetry magnetic circuit reactor iron core, because the close structure of upper and lower indisputable yoke can eliminate the higher harmonic in the iron core effectively, the iron core all can form through mechanized book system, and production efficiency obtains very big improvement, and the cross sectional area of packing was big, has the electrical efficiency height owing to the adoption of iron core column section is archimedes spiral's form the while. And the noise is low when using, no -load loss is stable. Because that adopts does not have oriented magnetic materials, so have good economic benefits. Simultaneously the utility model discloses an iron core also can be used to other electromagnetism products such as transformer, can reach same effect.
Description
Technical field
This utility model relates to a kind of three-phase symmetrical magnetic circuit efficient material-saving core of reactor.
Background technology
In current domestic and international all kinds of power electronic equipments and power supply, the reactor iron core structure of application is as shown in Figure 1.From figure
1 can intuitively find out；This flat shape is the iron core of current conventional structure, by seeing in figure that iron core column is that rectangle cuts intuitively
Face, certainly than circle many consumptions winding material of same area.The especially each phase magnetic circuit in A, B, C three-phase magnetic circuit；
AB=BC ＜ AC.Between this structures shape three-phase magnetic circuit, length is unequal, thus result in reactor each phase segment core post
Leakage field size of gaps in magnetic circuit, directly contributes the difference between each phase reactance value, the unequal and iron core of three-phase magnetic circuit
Internal higher hamonic wave directly influences all technical in reactor and power electronic equipment and power supply and stability.
Once occurring the structure of three-phase symmetrical the beginning of the seventies, three iron core column are 120 ° of symmetric arrays, but its iron core
Column section typically all use ladder circle, radioactive form, cause the effective area in cross section to reduce, cause high loss and
Under efficiency reduces.Another cross section uses the structure of involute, but complex manufacturing technology, cause time cost and system
Make cost to increase, cannot be widely used and die young at all, and be formed without mass production, quickly be abandoned by people.
Utility model content
For the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of three-phase symmetrical magnetic circuit
Efficient material-saving core of reactor, it is possible to mechanization production, filling area of section big and noise is low, open circuit loss is stable.
For solving above-mentioned technical problem, the technical solution of the utility model is, a kind of three-phase symmetrical magnetic circuit core of reactor,
Including three iron core column in 120 ° of symmetric arrays, three iron core column are respectively arranged with upper yoke, lower yoke, described upper ferrum
Yoke, lower yoke and three iron core column are integrally connected, and the cross section of described iron core column is Archimedes spiral.
Optimizing, described upper yoke, lower yoke cross section are equilateral triangle.Core limb cross section is Archimedes spiral
Optimizing, described upper yoke, lower yoke use No yield point permeability magnetic material；Iron core column uses No yield point magnetic conduction material
Expect or have orientation permeability magnetic material.
Optimizing, described No yield point permeability magnetic material is non-oriented silicon steel sheet, has orientation permeability magnetic material for there being grain-oriented Si steel sheet.
Optimizing, described upper yoke, lower yoke and iron core column can also be for powder pressure knot permeability magnetic material and amorphous magnetic conductions
Material.
The beneficial effects of the utility model are, the three-phase symmetrical upper and lower iron yoke of magnetic circuit reactor of the present utility model and iron core column
Can be formed by rolling of mechanization, assembling is simple, and efficiency is greatly improved, simultaneously because what iron core column cross section used
Being the form of Archimedes spiral, the area of section of filling is big, and efficiency is high.And noise is low in use, open circuit loss is stable, with
Sample can be with mechanization roll-forming.Owing to using No yield point permeability magnetic material, there is good economic benefit.This practicality simultaneously
Novel iron core can also be used for other electricity products such as transformator, it is possible to reaches same effect.
Accompanying drawing explanation
The utility model is described in more detail with embodiment below in conjunction with the accompanying drawings；
Fig. 1 is current existing reactor iron core structure schematic diagram；
Fig. 2 is the structural representation of the square-section of current existing core of reactor iron core column；
Fig. 3 be current existing core of reactor iron core column cross section be ladder circle structural representation；
Fig. 4 is the structural representation of this utility model three-phase symmetrical magnetic circuit core of reactor embodiment；
Fig. 5 is the sectional view of the iron core column of this utility model three-phase symmetrical magnetic circuit core of reactor embodiment；
Fig. 6 is the upper yoke of this utility model three-phase symmetrical magnetic circuit core of reactor embodiment, the structural representation of lower yoke
Figure.
Detailed description of the invention
It is the structural representation of current existing reactor as shown in Figure 1, 2, can be seen intuitively by figure, at A, B, C
Each phase magnetic circuit in three-phase magnetic circuit；AB=BC ＜ AC.Between this structures shape three-phase magnetic circuit, length is unequal, thus causes
In reactor each phase segment core post magnetic circuit, leakage field size of gaps, directly contributes the difference between each phase reactance value,
The unequal all technical directly influenced in power electronic equipment and power supply of three-phase magnetic circuit and stability.This structure
The defects such as iron core is compared, and has high loss, a high cost, higher harmonics, inefficient and bulky, so it is not appropriate for being applied to
In power electronic equipment and all kinds of power supply.
As shown in Figure 4,5, 6, a kind of three-phase symmetrical magnetic circuit core of reactor, including three iron cores in 120 ° of symmetric arrays
Post 1, is respectively arranged with upper yoke 2, lower yoke 3, described upper yoke 2, lower yoke 3 and three iron core column 1 in three iron core column 1
Being integrally connected, the cross section of described iron core column 1 is Archimedes spiral.Described upper yoke 2, lower yoke 3 cross section are equilateral triangle.
Described upper yoke 2, lower yoke 3 use No yield point permeability magnetic material；Iron core column 1 uses No yield point permeability magnetic material or has orientation magnetic conduction material
Material.Described No yield point permeability magnetic material is non-oriented silicon steel sheet, has orientation permeability magnetic material for there being grain-oriented Si steel sheet, is simultaneously applicable to
No yield point permeability magnetic material is orientated permeability magnetic material mixing application with having.Described upper yoke 2, lower yoke 3 and iron core column 1 are alternatively powder
End pressure knot permeability magnetic material and amorphous permeability magnetic material manufacture.
Iron core of the present utility model plant equipment can roll and form, and mechanization production, improves the efficiency of making, rolls up simultaneously
The iron core of system due to iron core column cross section be Archimedes spiral, the area of section of filling is big, has electrical efficiency high.And
During use, noise is low, open circuit loss is stable.
Can be seen intuitively by Fig. 4；This core structure is three-dimensional equilateral triangle shape, and A, B, C three-phase magnetic circuit is respectively in 120 °
Distribution, its magnetic circuit；AB=BC=AC, therefore the distance between three-phase magnetic circuit is impartial, due to the equalization of three-phase magnetic circuit length,
So the leakage field size of gaps in segment core post is equal, it is effectively guaranteed the absolute consistency of reactor each phase reactance value,
The structure of this symmetrical triangle breaches the planar alignment ideograph 1 of conventional three-phase reactor, reliably ensure that reactor and
Power electronic equipment and all technical of power supply and stability.
The more important thing is: due to the closing structure of the upper and lower iron yoke of tri-phase iron core, can effectively eliminate core interior high order humorous
Ripple.
Iron yoke the most of the present utility model is equilateral triangle, only needs machinery to roll according to stalloy manufacture, and iron yoke and
Iron core column is also applied for pressing to be formed integral blocks sprills permeability magnetic material and carries out rolling of splicing application and amorphous permeability magnetic material.
As it is shown in figure 5, iron core column cross section of the present utility model is Archimedes spiral formula, with prior art (Fig. 1) phase
Ratio, when circle is equal with the sectional area of rectangle, the girth of circular iron core post is obviously short than the girth of rectangular iron stem stem to be permitted
Many.Thus derive calculating；When the length-width ratio of rectangular iron stem stem is in 0.9:1 ~ 1:2 scope, caused by the relation of its girth difference,
So this patent use circular iron core post can effectively save winding conductive material (copper or aluminum) 6.94% ~ 13.53% and more than.With same
Fig. 1 structure of capacity is compared, iron core can effectively save permeability magnetic material 21-27% and more than.To sum up add up to the former of only iron core and winding
Material can decline in gross mass 27.94%-40.53% and more than, so this utility model have be greatly lowered raw material with
Purchase cost., owing to manufacturing the minimizing of material, its every loss objective and volume also can decline the most simultaneously and improve undoubtedly
Every electric property and reduction are lost and improve electrical efficiency.
The iron core of the present utility model iron core column under the conditions of equivalent diameter；The sectional area of Archimedes spiral and 5 ~ 8 grades
The sectional area of ladder circle (Fig. 3) of permeability magnetic material combination is compared, and its sectional area can be effectively increased 5% ~ 9%.The increase of area can
Effectively to make iron core column diameter reduce once again, its girth is reduced the most accordingly undoubtedly, certainly；Winding in manufacture
Material (copper or aluminum) has been got back further decline.Iron yoke in the structure of this utility model patent and employing Archimedes's spiral shell
During the segment core post of line structure, practicable mechanization rolls production, eliminates the Step Circular (Fig. 3) of many gauge sheet shape combination
Or the closed assembly operation of rectangular iron stem stem (Fig. 1), so it is simple to have assembling, effectively reduce manufacturing cost.This utility model simultaneously
Material typically use non-oriented silicon steel sheet or other No yield point permeability magnetic material manufactures, between itself and grain-oriented Si steel sheet permeability magnetic material
Actual purchase price difference, this is also a very important economic benefit！
As it has been described above, we are illustrated fully according to objective of the present utility model, but this utility model not limits to
In above-described embodiment and implementation.The scope that the practitioner of correlative technology field can permit at technological thought of the present utility model
Inside carry out different changes and enforcement.
Claims (5)
1. a three-phase symmetrical magnetic circuit efficient material-saving core of reactor, including three iron core column in 120 ° of symmetric arrays, three
Being respectively arranged with upper yoke, lower yoke in individual iron core column, described upper yoke, lower yoke and three iron core column are integrally connected, and it is special
Levy and be: the cross section of described iron core column is that Archimedes spiral rolls.
Three-phase symmetrical magnetic circuit efficient material-saving core of reactor the most according to claim 1, it is characterised in that: described upper ferrum
Yoke, lower yoke cross section are equilateral triangle.
Three-phase symmetrical magnetic circuit efficient material-saving core of reactor the most according to claim 2, it is characterised in that: described upper ferrum
Yoke, lower yoke use No yield point permeability magnetic material；Iron core column uses No yield point permeability magnetic material or has orientation permeability magnetic material.
Three-phase symmetrical magnetic circuit efficient material-saving core of reactor the most according to claim 3, it is characterised in that: described No yield point
Permeability magnetic material is non-oriented silicon steel sheet, has orientation permeability magnetic material for there being grain-oriented Si steel sheet.
Three-phase symmetrical magnetic circuit efficient material-saving core of reactor the most according to claim 1, it is characterised in that: described upper ferrum
Yoke, lower yoke and iron core column are powder pressure knot permeability magnetic material and amorphous permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481995.2U CN205666124U (en) | 2016-05-25 | 2016-05-25 | High -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481995.2U CN205666124U (en) | 2016-05-25 | 2016-05-25 | High -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666124U true CN205666124U (en) | 2016-10-26 |
Family
ID=57160923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620481995.2U Expired - Fee Related CN205666124U (en) | 2016-05-25 | 2016-05-25 | High -efficient material -saving reactor iron core of three -phase symmetry magnetic circuit |
Country Status (1)
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| CN (1) | CN205666124U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863397A (en) * | 2020-06-22 | 2020-10-30 | 上海电机学院 | Integrated winding-formed three-dimensional transformer iron core |
| CN113517118A (en) * | 2021-08-24 | 2021-10-19 | 宁波宁变电力科技股份有限公司 | Iron core reactor with good linearity |
| 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 |
-
2016
- 2016-05-25 CN CN201620481995.2U patent/CN205666124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863397A (en) * | 2020-06-22 | 2020-10-30 | 上海电机学院 | Integrated winding-formed three-dimensional transformer iron core |
| CN113517118A (en) * | 2021-08-24 | 2021-10-19 | 宁波宁变电力科技股份有限公司 | Iron core reactor with good linearity |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20200525 |