CN107919217B - Stepping iron core and manufacturing method thereof - Google Patents
Stepping iron core and manufacturing method thereof Download PDFInfo
- Publication number
- CN107919217B CN107919217B CN201711106176.5A CN201711106176A CN107919217B CN 107919217 B CN107919217 B CN 107919217B CN 201711106176 A CN201711106176 A CN 201711106176A CN 107919217 B CN107919217 B CN 107919217B
- Authority
- CN
- China
- Prior art keywords
- silicon steel
- steel sheet
- outer ring
- iron core
- lining plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 88
- 238000004804 winding Methods 0.000 claims abstract description 10
- 238000000137 annealing Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
- H01F27/2455—Magnetic cores made from sheets, e.g. grain-oriented using bent laminations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- 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
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
- H01F41/024—Manufacturing of magnetic circuits made from deformed sheets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a stepping iron core which comprises a closed inner lining plate, an inner silicon steel sheet and a plurality of outer ring silicon steel sheets, wherein the inner lining plate is arranged on the inner lining plate; the inner silicon steel sheet is arranged on the outer side of the inner lining plate; a plurality of stepped bosses are arranged on the inner-layer silicon steel sheet and are connected with one end of the outer-ring silicon steel sheet; the outer ring silicon steel sheet surrounds the inner lining plate at least one circle; each outer ring silicon steel sheet with each circle contains at least one notch; the notch connection is provided with a gap, and the gaps of different circles are not on the same cross section. The invention also discloses a manufacturing method of the stepping iron core, which comprises the steps of cutting the stepping iron core in the process of winding the silicon steel sheet, and finally shaping and annealing the stepping iron core by using a die. The invention has the advantages of compact structure, small iron loss, good excitation characteristic and strong load carrying capacity.
Description
Technical Field
The invention relates to an iron core, in particular to a stepping iron core and a manufacturing method of the stepping iron core.
Background
The core is the main magnetic circuit part in the transformer. Is generally formed by laminating hot-rolled or cold-rolled silicon steel sheets with high silicon content and insulating paint coated on the surfaces. The silicon steel sheet iron core can be divided into a stacked iron core and a rolled iron core according to a manufacturing method, wherein the stacked iron core is formed by stacking silicon steel sheets one by one, and the rolled iron core is formed by winding the used silicon steel sheets. The iron core and the coil wound on the iron core form a complete electromagnetic induction system. The actual transformer always operates in an ac state, and power loss is generated not only in the resistance of the coil but also in the core magnetized by the alternating current.
The conventional wound iron core is formed by overlapping the silicon steel sheets one by one, and has large iron loss and a compact structure, so that improvement is necessary.
Disclosure of Invention
In order to solve the technical problems, the invention provides a stepping iron core, which comprises a closed inner lining plate, an inner silicon steel sheet and a plurality of outer ring silicon steel sheets;
the inner silicon steel sheet is arranged on the outer side of the inner lining plate; a plurality of stepped bosses are arranged on the inner-layer silicon steel sheet and can be connected with one end of the outer-ring silicon steel sheet; the outer ring silicon steel sheet surrounds the inner lining plate at least one circle; each outer ring silicon steel sheet with each circle contains at least one notch; the notch connection is provided with a gap, and the gaps of different circles are not on the same cross section.
Further, the size of the incision gap may be the same or different.
Further, the distances between two adjacent slits may be the same or different.
Further, the slits are provided on the same side of the core.
Further, the interior lining panels include rectangular, circular, and other shapes.
Further, the length of the inner layer silicon steel sheet is not longer than the circumference of the inner lining plate.
Correspondingly, the invention also provides a manufacturing method of the stepping iron core, which comprises the following steps:
1) The inner lining plate is fixedly arranged on the rotating shaft;
2) Fixing an inner silicon steel sheet on the outer side of the inner lining plate;
3) One end of an outer ring silicon steel sheet is connected with the inner layer silicon steel sheet, and is wound around the inner lining plate;
4) In the winding process, cutting the outer ring silicon steel sheet;
5) After winding, shaping and annealing the iron core by using a die, and spot-welding and fixing the outermost ring of the iron core.
The embodiment of the invention has the advantages of small iron core loss, good excitation characteristic and strong load carrying capacity, and the iron core is provided with the inner silicon steel sheet, so that the invention also has the advantage of compact structure.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions and advantages of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first embodiment of a stepping iron core according to the present invention.
Wherein, the reference numerals in the figures are as follows: 1-an inner liner; 2-an inner layer silicon steel sheet; 201-a first boss; 202-a second boss; 203-a third boss; 3-an outer ring silicon steel sheet; 301-a first outer ring silicon steel sheet; 302-a second silicon steel sheet; 303-a third silicon steel sheet; 4-slit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It will be apparent that the described embodiments are merely one embodiment of the invention, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
Embodiment one:
as shown in fig. 1, the present embodiment provides a stepped iron core, which includes a closed inner liner plate 1, an inner silicon steel sheet 2 and a plurality of outer ring silicon steel sheets 3;
the inner silicon steel sheet 2 is arranged on the outer side of the inner lining plate 1; a plurality of stepped bosses are arranged on the inner-layer silicon steel sheet 2 and are connected with one end of the outer-ring silicon steel sheet 3; the outer ring silicon steel sheet 3 surrounds the inner lining plate 1 at least one circle; each outer ring silicon steel sheet 3 which is separated by one circle comprises at least one notch; the joint of the incisions is provided with slits 4, and the slits 4 of different circles are not on the same cross section.
Specifically, the inner liner 1 is a closed rectangle.
Further, the inner silicon steel sheet 2 is disposed on the long side of the left side of the inner liner 1.
Specifically, the inner silicon steel sheet 2 has three steps, namely a first boss 201, a second boss 202 and a third boss 203.
Specifically, the outer ring silicon steel sheets 3 have three pieces, namely a first outer ring silicon steel sheet 301, a second outer ring silicon steel sheet 302 and a third outer ring silicon steel sheet 303.
Further, one end of the first outer ring silicon steel sheet 301 is connected to the first boss 201, one end of the second outer ring silicon steel sheet 302 is connected to the second boss 202, and one end of the third outer ring silicon steel sheet 303 is connected to the third boss 203.
Further, the sizes of the slit 4 may be the same or different.
Further, the distances between two adjacent slits 4 may be the same or different.
Further, the slits 4 are all disposed on the left side of the core.
Correspondingly, the invention also provides a manufacturing method of the stepping iron core, which mainly comprises the following steps of,
1) The inner lining plate 1 is fixedly arranged on the rotating shaft;
2) Fixing an inner silicon steel sheet 2 on the outer side of the long side of the left side of the inner lining plate 1;
3) One end of 3 outer ring silicon steel sheets 3 is respectively connected with the 3 bosses, and is wound around the inner lining plate 1;
4) In the winding process, cutting the outer ring silicon steel sheet 3;
5) After winding, shaping and annealing the iron core by using a die, and spot-welding and fixing the outermost ring of the iron core.
Embodiment two:
as shown in fig. 1, the present embodiment provides a stepping iron core, which includes a closed inner liner plate 1, an inner silicon steel sheet 2 and a plurality of outer ring silicon steel sheets 3;
the inner silicon steel sheet 2 is arranged on the outer side of the inner lining plate 1; a plurality of stepped bosses are arranged on the inner-layer silicon steel sheet 2 and are connected with one end of the outer-ring silicon steel sheet 3; the outer ring silicon steel sheet 3 surrounds the inner lining plate 1 at least one circle; each outer ring silicon steel sheet 3 which is separated by one circle comprises at least one notch; the joint of the incisions is provided with slits 4, and the slits 4 of different circles are not on the same cross section.
In particular, the inner liner 1 is a closed circular shape.
Specifically, the inner silicon steel sheet 2 has three steps, namely a first boss 201, a second boss 202 and a third boss 203.
Specifically, the outer ring silicon steel sheets 3 have three pieces, namely a first outer ring silicon steel sheet 301, a second outer ring silicon steel sheet 302 and a third outer ring silicon steel sheet 303.
Further, one end of the first outer ring silicon steel sheet 301 is connected to the first boss 201, one end of the second outer ring silicon steel sheet 302 is connected to the second boss 202, and one end of the third outer ring silicon steel sheet 303 is connected to the third boss 203.
Further, the sizes of the slit 4 may be the same or different.
Further, the distances between two adjacent slits 4 may be the same or different.
Further, the gap 4 is arranged at one side of any semicircle of the iron core.
Correspondingly, the invention also provides a manufacturing method of the stepping iron core, which mainly comprises the following steps of,
1) The inner lining plate 1 is fixedly arranged on the rotating shaft;
2) Fixing an inner silicon steel sheet 2 on the outer side of the long side of the left side of the inner lining plate 1;
3) One end of 3 outer ring silicon steel sheets 3 is respectively connected with the 3 bosses, and is wound around the inner lining plate 1;
4) In the winding process, cutting the outer ring silicon steel sheet 3;
5) After winding, shaping and annealing the iron core by using a die, and spot-welding and fixing the outermost ring of the iron core.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (7)
1. The stepping iron core is characterized by comprising a closed inner lining plate (1), an inner silicon steel sheet (2) and a plurality of outer ring silicon steel sheets (3);
the inner layer silicon steel sheet (2) is arranged on the outer side of the inner lining plate (1), the inner lining plate (1) comprises a rectangle and a circle, and the length of the inner layer silicon steel sheet (2) is not longer than the circumference of the inner lining plate (1); a plurality of stepped bosses are arranged on the inner layer silicon steel sheet (2), and the stepped bosses are connected with one end of the outer ring silicon steel sheet (3); the inner layer silicon steel sheet (2) is provided with three layers of steps, namely a first boss (201), a second boss (202) and a third boss (203); the outer ring silicon steel sheets (3) are respectively a first outer ring silicon steel sheet (301), a second outer ring silicon steel sheet (302) and a third outer ring silicon steel sheet (303); one end of the first outer ring silicon steel sheet (301) is connected with the first boss (201), one end of the second outer ring silicon steel sheet (302) is connected with the second boss (202), and one end of the third outer ring silicon steel sheet (303) is connected with the third boss (203);
the outer ring silicon steel sheet (3) surrounds the inner lining plate (1) at least one circle; each outer ring silicon steel sheet (3) which is separated by one circle comprises at least one notch; the joint of the incisions is provided with slits (4), and the slits (4) of different circles are not on the same cross section.
2. A stepped iron core according to claim 1, characterized in that the slit slits (4) are of the same size.
3. A stepped iron core according to claim 1, characterized in that the size of the slit (4) is different.
4. A stepped iron core according to claim 1, characterized in that the distance between two adjacent slits (4) is the same.
5. A stepped iron core according to claim 1, characterized in that the distance between two adjacent slits (4) is different.
6. A stepped iron core according to any one of claims 1-5, characterized in that said slits (4) are arranged on the same side of said iron core.
7. A manufacturing method of a stepping iron core is characterized by comprising the following steps,
1) Fixedly arranging the inner lining plate (1) on the rotating shaft;
2) Fixing an inner silicon steel sheet (2) on the outer side of the inner lining plate (1);
3) One end of an outer ring silicon steel sheet (3) is connected with the inner layer silicon steel sheet (2) and is wound around the inner lining plate (1);
4) In the winding process, cutting the outer ring silicon steel sheet (3);
5) After winding, shaping and annealing the iron core by using a die, and spot-welding and fixing the outermost ring of the iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106176.5A CN107919217B (en) | 2017-11-10 | 2017-11-10 | Stepping iron core and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106176.5A CN107919217B (en) | 2017-11-10 | 2017-11-10 | Stepping iron core and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107919217A CN107919217A (en) | 2018-04-17 |
| CN107919217B true CN107919217B (en) | 2024-03-19 |
Family
ID=61895338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711106176.5A Active CN107919217B (en) | 2017-11-10 | 2017-11-10 | Stepping iron core and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107919217B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275698U (en) * | 2011-09-23 | 2012-06-13 | 孙晖 | Planar three-phase four-frame double-opening coiled iron core |
| JP2013062410A (en) * | 2011-09-14 | 2013-04-04 | Mitsubishi Electric Corp | Wound core for transformer |
| CN104835630A (en) * | 2015-05-07 | 2015-08-12 | 江苏扬动电气有限公司 | Fold-fin combined wound core |
| JP2016201489A (en) * | 2015-04-13 | 2016-12-01 | 株式会社ダイヘン | Junction separation method for wound core, and outermost peripheral steel-plate cutting device for wound core |
| CN107316739A (en) * | 2017-06-19 | 2017-11-03 | 广东紫光电气有限公司 | A kind of collapsible formula transformer core preparation method |
-
2017
- 2017-11-10 CN CN201711106176.5A patent/CN107919217B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013062410A (en) * | 2011-09-14 | 2013-04-04 | Mitsubishi Electric Corp | Wound core for transformer |
| CN202275698U (en) * | 2011-09-23 | 2012-06-13 | 孙晖 | Planar three-phase four-frame double-opening coiled iron core |
| JP2016201489A (en) * | 2015-04-13 | 2016-12-01 | 株式会社ダイヘン | Junction separation method for wound core, and outermost peripheral steel-plate cutting device for wound core |
| CN104835630A (en) * | 2015-05-07 | 2015-08-12 | 江苏扬动电气有限公司 | Fold-fin combined wound core |
| CN107316739A (en) * | 2017-06-19 | 2017-11-03 | 广东紫光电气有限公司 | A kind of collapsible formula transformer core preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107919217A (en) | 2018-04-17 |
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