CN213150532U - Single-frame amorphous alloy iron core, amorphous alloy three-dimensional wound iron core and transformer - Google Patents
Single-frame amorphous alloy iron core, amorphous alloy three-dimensional wound iron core and transformer Download PDFInfo
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- CN213150532U CN213150532U CN202021334774.5U CN202021334774U CN213150532U CN 213150532 U CN213150532 U CN 213150532U CN 202021334774 U CN202021334774 U CN 202021334774U CN 213150532 U CN213150532 U CN 213150532U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 110
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 239000005300 metallic glass Substances 0.000 abstract description 27
- 238000005096 rolling process Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000007704 transition Effects 0.000 description 6
- 238000003475 lamination Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a single frame metallic glass is unshakable in one's determination, including the many layers cake unshakable in one's determination that stacks together, every layer the cake unshakable in one's determination includes two first frame limits and two second frame limits, first frame limit is used for forming the unshakable in one's determination core post of single frame metallic glass, the second frame limit is used for forming the indisakable indisputable yoke of single frame, and the interior limit of first frame limit is the straight flange, and the interior limit of: r is more than or equal to 500 and less than or equal to 3000 mm. The utility model discloses still disclose the three-dimensional iron core of rolling up of amorphous alloy including above-mentioned single frame amorphous alloy iron core and contain the three-dimensional transformer of rolling up unshakable in one's determination of above-mentioned amorphous alloy. The utility model discloses single frame metallic glass iron core has lower no-load loss.
Description
Technical Field
The utility model belongs to the technical field of the transformer, concretely relates to single frame metallic glass is unshakable in one's determination, contains this single frame metallic glass unshakable in one's determination metallic glass three-dimensional book unshakable in one's determination and contain this metallic glass three-dimensional transformer of rolling up unshakable in one's determination.
Background
The amorphous alloy three-dimensional wound core transformer is different from a planar wound core structure of a traditional amorphous alloy transformer, can combine the low cost advantage of the three-dimensional wound core with the low loss characteristic of the amorphous alloy, meets the development requirements of energy-saving and consumption-reducing policies proposed by the state, and is widely concerned by the transformer industry at present.
However, because the manufacturing level of the domestic amorphous alloy three-dimensional wound iron core is not mature, the current amorphous alloy three-dimensional wound iron core at least has the defects of high no-load loss, poor short-circuit resistance, high noise, low production efficiency, higher cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned not enough that exists among the prior art, provide a single frame metallic glass iron core, contain this single frame metallic glass iron core metallic glass three-dimensional book iron core and contain this metallic glass three-dimensional transformer of rolling up iron core, this single frame metallic glass iron core has lower no-load loss.
According to an aspect of the utility model, a single frame metallic glass is unshakable in one's determination is provided, its technical scheme as follows:
a single-frame amorphous alloy iron core comprises a plurality of iron core cakes which are laminated together,
each layer of the iron core cake is provided with two first frame edges and two second frame edges, the first frame edges are used for forming a core column of the single-frame amorphous alloy iron core, the second frame edges are used for forming an iron yoke of the single-frame amorphous alloy iron core,
the interior limit of first frame limit is the straight flange, and the interior limit of second frame limit is the arc limit, and the radius R on this arc limit is: r is more than or equal to 500 and less than or equal to 3000 mm.
Preferably, the inner edge of the first frame edge and the inner edge of the second frame edge are connected by an arc, and the radius r of the arc is: r is more than or equal to 2 and less than or equal to 20 mm.
Preferably, the stem has a cross-section that approximates a semi-circle in shape, the semi-circle cross-section including a joggle step edge, a first peripheral step edge, and a second peripheral step edge,
the splicing step edge comprises a plurality of first steps, the top points of the first steps are positioned on the same straight line, and the straight line forms the diameter of the cross section of the stem;
the first peripheral step edge comprises a plurality of second steps, the second peripheral step edge comprises a plurality of third steps, the top point of each second step and the top point of each third step are positioned on the same arc surface, and the arc forms a semicircle of the cross section of the stem.
Preferably, the core cake comprises an amorphous strip formed by winding and a support member wrapped on the surface of the amorphous strip,
the amorphous strip is made of an iron-based amorphous alloy material, the thickness of the amorphous strip is 0.01-0.03mm, and the width of the amorphous strip is 10-100 mm;
the support is made of silicon steel strips, and the thickness of the support is 0.1-1 mm.
Preferably, the single-frame amorphous alloy core further comprises a solidified layer, and the solidified layer is arranged between the core cakes and wrapped outside the core cakes.
The utility model discloses a beneficial effect unshakable in one's determination of single frame metallic glass as follows:
(1) the iron yoke is in arc transition, can reduce the internal stress of the amorphous strip and reduce the damage to the amorphous strip in the winding process, thereby reducing the no-load loss of the amorphous strip, also reducing the finishing process in the winding process, being beneficial to improving the production efficiency, and in addition, the single-frame amorphous alloy iron core formed by arc transition more meets the design requirement and has more attractive appearance.
(2) The iron yoke and the core column are in arc transition, so that the internal stress of the amorphous strip can be further reduced, the damage to the amorphous strip in the winding process can be reduced, the no-load loss of the amorphous strip can be reduced, the trimming process in the lamination process of the iron core cakes can be reduced, and the lamination efficiency can be improved.
(3) The iron core cake is made by winding the amorphous alloy strip, compared with the traditional splicing mode, the number of the inner joints can be reduced, and the noise generated by the iron core joints is reduced.
According to another aspect of the utility model, a three-dimensional book of metallic glass iron core is provided, its technical scheme as follows:
the amorphous alloy three-dimensional wound core comprises more than three single-frame amorphous alloy cores which are spliced two by two to form the core column.
Preferably, the three single-frame amorphous alloy cores are arranged in a regular triangle,
the cross section of the core column of each single-frame amorphous alloy iron core is approximately semicircular, the semicircular cross section comprises a splicing step edge, a peripheral step edge and a second peripheral step edge, the splicing step edge comprises a plurality of first steps, the peripheral step edge comprises a plurality of second steps, and the second peripheral step edge comprises a plurality of third steps;
and for the two spliced single-frame amorphous alloy iron cores, the vertex of the first step of one single-frame amorphous alloy iron core is connected with the vertex of the first step of the other single-frame amorphous alloy iron core.
Preferably, the included angle between the splicing surfaces for splicing every two in each single-frame amorphous alloy iron core and the iron yoke thereof is 30 degrees.
Preferably, the amorphous alloy three-dimensional wound core further comprises an insulating member, and the insulating member is arranged between the splicing surfaces of every two spliced single-frame amorphous alloy cores.
The utility model discloses a three-dimensional book of metallic glass iron core has adopted above-mentioned single frame metallic glass iron core, and no-load loss is low, and small in noise, and anti short circuit ability reinforce, can effectively improve the safety in utilization.
According to another aspect of the present invention, there is provided a transformer, which comprises:
a transformer comprises an iron core, wherein the iron core adopts the amorphous alloy three-dimensional wound iron core.
The utility model discloses a transformer has adopted the three-dimensional iron core of rolling up of above-mentioned metallic glass, and it is low to have no-load loss, small in noise, advantages such as anti short circuit ability reinforce to, because the iron core post is similar cylindrical, the packing fraction is high, other material use amounts such as reducible copper line, transformer oil, reduction in production cost.
Drawings
Fig. 1 is a schematic structural view of a single-frame amorphous alloy rolled core in embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
fig. 3 is a schematic cross-sectional view of a core post of a single-frame amorphous alloy rolled iron core in embodiment 1 of the present invention;
fig. 4 is a schematic cross-sectional view of an iron yoke of a single-frame amorphous alloy wound core according to embodiment 1 of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 1;
fig. 6 is a schematic structural view of an iron core cake in embodiment 1 of the present invention;
FIG. 7 is a schematic view of the core cake of FIG. 6 prior to forming;
fig. 8 is a schematic structural view of an amorphous alloy three-dimensional wound core according to embodiment 2 of the present invention;
fig. 9 is a schematic cross-sectional view of an iron core column of an amorphous alloy three-dimensional wound core according to embodiment 2 of the present invention;
fig. 10 is a cross-sectional view C-C of fig. 8.
In the figure: 1-a support; (ii) a 2-amorphous ribbon; 3-a first frame edge; 4-a second frame edge; 5-a grounding member; 6-splicing step edges; 71-a first peripheral step edge; 72-a second peripheral step edge; 8-an insulator; 9-single frame amorphous alloy iron core; 10-iron core cake; 30-a stem; 40-iron yoke.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and specific embodiments of the present invention.
Aiming at the problems of large no-load loss and the like of the amorphous alloy three-dimensional wound iron core in the prior art, the utility model provides a single-frame amorphous alloy iron core, which comprises a plurality of iron core cakes which are laminated together,
the longitudinal section of each layer of the iron core cake is provided with two first frame edges and two second frame edges, the first frame edges are used for forming a core column of the single-frame amorphous alloy iron core, the second frame edges are used for forming an iron yoke of the single-frame amorphous alloy iron core,
the interior limit of first frame limit is the straight flange, and the interior limit of second frame limit is the arc limit, and the radius R on this arc limit is: r is more than or equal to 500 and less than or equal to 3000 mm.
Correspondingly, the utility model also provides a three-dimensional book of metallic glass iron core, including the iron core post, the iron core post is by more than three two liang of concatenations of single frame metallic glass iron core form.
Correspondingly, the utility model also provides a contain the three-dimensional transformer of rolling up unshakable in one's determination of above-mentioned metallic glass.
Example 1
As shown in fig. 1 to 7, the present embodiment discloses a single frame amorphous alloy core including a plurality of laminated core cakes 10. Each layer of the iron core cake 10 is provided with two first frame edges 3 and two second frame edges 4, the first frame edges 3 are used for forming a core column 30 of the single-frame amorphous alloy iron core, the core column 30 is used for winding coils, the second frame edges are used for forming an iron yoke 40 of the single-frame amorphous alloy iron core, and the iron yoke 40 mainly plays a role in closing a magnetic circuit. The interior limit of first frame limit 3 is the straight flange, and the interior limit of second frame limit 4 is the arc limit, and the indisputable yoke that single frame metallic glass unshakable in one's determination adopts the circular arc to pass through promptly to reduce the no-load loss unshakable in one's determination, and, the radius R on this arc limit is: r is more than or equal to 500mm and less than or equal to 3000mm, so that the phenomenon that the internal stress of the iron core cake 10 in the winding forming process is overlarge due to the fact that the distance between the two first frame edges 3 is too small because R is too small is avoided, the phenomenon that the yoke of the single-frame amorphous alloy iron core is too long due to the fact that R is overlarge is avoided, and the size of the formed single-frame amorphous alloy iron core meets the design requirement better.
Further, the inner edge of the first frame edge 3 and the inner edge of the second frame edge 4 are connected through an arc to reduce the generation of internal stress in the single-frame amorphous alloy iron core forming process, so that no-load loss is further reduced, and the radius r of the arc is as follows: r is more than or equal to 2 and less than or equal to 20mm, so that the trimming process in the forming process of the single-frame amorphous alloy iron core can be reduced, and the production efficiency can be improved.
Specifically, the radius R of the arc edge (i.e., the inner edge of the second frame edge 4) may be 500mm, 1000mm, 1500mm, 1000mm, 2000mm, 2500mm, 3000mm, or any other value within a range of 500mm to 3000mm, and may be specifically selected according to the capacity of the transformer to which the arc edge is applied.
Specifically, the radius r of the arc (i.e., the arc-shaped connection point between the inner edge of the first frame 3 and the inner edge of the second frame 4) may be equal to or any other value within the range of 2mm to 20mm, such as 2mm, 5mm, 10mm, 15mm, or 20mm, and may be specifically selected according to the capacity of the transformer to which the arc is applied.
Further, the stem 30 has a cross-section that is approximately semi-circular in shape, the semi-circular cross-section including a joggle step leg 6, a first peripheral step leg 71, and a second peripheral step leg 72, the joggle step leg 6 including a plurality of first steps. The apexes of the first steps are on the same line which constitutes the diameter of the cross-section of the stem 30. The first peripheral step edge 71 includes a plurality of second steps, the second peripheral step edge 72 includes a plurality of third steps, and the vertex of each second step and the vertex of each third step are located on the same arc surface, which forms a semicircle of the cross section of the stem 30.
Specifically, as shown in fig. 2, 3, 4, and 5, the distances from the inner edge to the outer edge of the first frame 3 of each layer of the core cake 10 (i.e., the widths of the first frame 3) are different for the first frame 3 of each layer of the core cake 10 constituting the single-frame amorphous alloy core leg. In this embodiment, the number of wound layers of each core cake is 1 to 20. As shown in fig. 3, the widths of the first frame edges 3 of the core cakes 10 constituting the core pillars 30 are gradually increased from the outer side to the middle part, the edges of the inner edges of the first frame edges 3 of the core cakes constituting the core pillars 30 are on the same arc surface, and the cross section of the core pillar 30 of the single-frame amorphous alloy core is approximately semicircular as shown in fig. 3. The inner edges of the first frame edges 3 of the laminated iron core cakes are distributed in a step shape to form second peripheral step edges 72, the inner edges of the first frame edges 3 of the iron core cakes forming the second peripheral step edges 72 are third steps, the top points of the third steps are positioned on the same arc surface, and the arc surface is the outer contour of the core column 30 of the single-frame amorphous alloy iron core and is similar to a semi-cylinder. The edges of the outer edges of the first frame edges 3 of the iron core cakes of each layer are also distributed in a step shape to form a splicing step edge 6 and a first peripheral step edge 71, wherein: the outer edge of the first frame edge 3 of each layer of iron core cake forming the splicing step edge 6 is a first step, and the top point of the first step is positioned on the same straight line; the outer edge of the first frame edge 3 of each layer of the iron core cake forming the first peripheral step edge 71 is the second step, the vertex of the second step and the vertex of the third step are positioned on the same arc surface, namely the vertex of the second step is also positioned on the outer contour of the core column 30 of the single-frame amorphous alloy iron core.
In this embodiment, the clear height of the first rim 3 (i.e. the length of the inner edge of the first rim 3, also referred to as the inner height of the core column of the single-frame amorphous alloy core) of each layer of the core cake 10 is the same, and the clear height of the first rim 3 is preferably 50-2000 mm. The radius of the inner edge of the second frame edge 4 of each layer of the core cake 10 is the same, so that the inner edges of the yokes 40 of the single-frame amorphous alloy core are positioned on the same arc surface, and the cross section of the yoke 40 is as shown in fig. 4.
In this embodiment, the number of the core cakes 10 in the single-frame amorphous alloy core can be selected according to the capacity of the transformer produced by using the single-frame amorphous alloy core, for example, the number of the core cakes 10 can be 3-100, and the net thickness of the single-frame amorphous alloy core (i.e., the height of the lamination of the plurality of core cakes) is 50-1000 mm.
Further, as shown in fig. 6, each layer of the core cake 10 includes an amorphous ribbon formed by winding and a supporting member wrapped on the surface of the amorphous ribbon, more precisely, the supporting member is disposed on the inner side and the outer side of the amorphous ribbon formed by winding, and the supporting member 1 can perform supporting and protecting functions, thereby improving the overall strength of the core cake. Each layer of iron core cake 10 is annular, two first frame edges 3 are symmetrically arranged, and two second frame edges 4 are symmetrically arranged.
In the embodiment, the amorphous strip 2 is preferably made of an iron-based amorphous alloy material, the thickness of the amorphous strip 2 is preferably 0.01-0.03mm, and the width of the amorphous strip 2 is preferably 10-100 mm.
In this embodiment, the number of winding layers of each core cake 10 in the single-frame amorphous alloy core is preferably 1 to 20. The number of winding layers of the amorphous strip affects the distance from the inner edge to the outer edge of the first frame 3 (i.e. the width of the first frame 3), and the number of winding layers of each layer of the core cake increases from the outer layer (i.e. the middle part) in the same core column.
In the practical implementation, the supporting member 1 is made of a silicon steel strip or similar metal material, the thickness of the supporting member is 0.1-1mm, and the width of the supporting member is adapted to the width of the amorphous strip 2 in the layer of the iron core cake 10.
In the process of producing the iron core cake, 1-3 layers of silicon steel bands are wound as a support piece 1, then amorphous strips 2 with the required number of layers are wound outside the support piece 1, and finally 1-3 layers of silicon steel bands are wound outside the amorphous strips 2 as supports to obtain the iron core cake 10.
In some alternative embodiments, the silicon steel strip is wound into a circular support, then the amorphous strip with the required number of layers is wound on the outer side of the circular support, then the silicon steel strip is wound on the outer side of the wound amorphous strip to obtain an annular iron core cake (as shown in fig. 7), and then the square annular iron core cake 10 shown in fig. 6 is obtained through a round-supporting square process.
Further, the single-frame amorphous alloy core of the present embodiment further includes a cured layer (not shown in the figure), and the cured layer is disposed between the iron core cakes 10 and wrapped outside the iron core cakes 10, so that the iron core cakes are cured into a whole. In this embodiment, the cured layer may be formed by curing a resin adhesive.
In this embodiment, the single-frame amorphous alloy core further includes a grounding member 5, and the grounding member 5 is disposed on the yoke 40 and is used for grounding when the transformer is assembled, so as to ensure the safety of the transformer.
The single-frame amorphous alloy iron core has the following beneficial effects:
(1) the iron yoke is in arc transition, can reduce the internal stress of the amorphous strip and reduce the damage to the amorphous strip in the winding process, thereby reducing the no-load loss of the amorphous strip, also reducing the finishing process in the winding process, being beneficial to improving the production efficiency, and in addition, the single-frame amorphous alloy iron core formed by arc transition more meets the design requirement and has more attractive appearance.
(2) The iron yoke and the core column are in arc transition, so that the internal stress of the amorphous strip can be further reduced, the damage to the amorphous strip in the winding process can be reduced, the no-load loss of the amorphous strip can be reduced, the trimming process in the lamination process of the iron core cakes can be reduced, and the lamination efficiency can be improved.
(3) The iron core is manufactured by adopting a winding mode, compared with the traditional splicing mode, the number of internal joints can be reduced, and the noise generated by the iron core joints is reduced.
Example 2
The embodiment discloses an amorphous alloy three-dimensional wound core, which comprises core columns, wherein the core columns are formed by splicing the single-frame amorphous alloy cores 9 in three embodiments 1 in pairs.
Specifically, the three single-frame amorphous alloy cores 9 are identical, each single-frame amorphous alloy core 9 has two splicing surfaces (i.e., splicing table edges 6), the two splicing surfaces of the same single-frame amorphous alloy core are respectively spliced with the splicing surfaces of the other two single-frame amorphous alloy cores, and the three-dimensional amorphous alloy rolled core obtained by splicing is of a three-phase three-column three-dimensional structure, as shown in fig. 8, the cross section of the three-dimensional amorphous alloy rolled core is triangular.
Further, for the two spliced single-frame amorphous alloy cores 9, the vertex of the first step of one single-frame amorphous alloy core is connected with the vertex of the first step of the other single-frame amorphous alloy core.
Furthermore, the included angle between the splicing surfaces used for splicing every two of each single-frame amorphous alloy iron core and the iron yoke 40 is 30 degrees, the splicing surfaces of the two single-frame amorphous alloy iron cores used for splicing are mutually symmetrical, so that the cross section of the amorphous alloy three-dimensional rolled iron core obtained after the three single-frame amorphous alloy iron cores 9 are spliced is in a regular triangle shape (as shown in figure 10), the cross section of the iron core column obtained after splicing is in an approximate circle shape (as shown in figure 9), the filling rate of the iron core column can be improved, the subsequent required winding length and the transformer oil quantity are reduced, and the production cost of the amorphous alloy three-dimensional rolled iron core and the transformer can be further reduced.
Further, the three-dimensional iron core of rolling up of metallic glass still includes insulating part 8, and insulating part 8 is located between the concatenation face of per two single frame metallic glass unshakable in one's determination to two adjacent single frame metallic glass unshakable in one's determination direct contact of preventing the concatenation avoids the multiple spot ground connection that direct contact caused, prevents that the transformer from burning out in service.
Further, a curing layer (not shown) is also arranged between the single-frame amorphous alloy iron cores and on the surface of the single-frame amorphous alloy iron cores to fill the gaps, so that the single-frame amorphous alloy iron cores 9 are cured into a whole, the strength and the short-circuit resistance of the amorphous alloy three-dimensional wound iron core are improved, and the noise of the amorphous alloy three-dimensional wound iron core is reduced. In this embodiment, the cured layer is preferably formed by curing a resin paint or a resin adhesive, and in an actual production process, the cured layer may be obtained by curing the resin paint or the resin adhesive by using a dipping, brushing, coating, or the like.
In this embodiment, the amorphous alloy three-dimensional wound core may further include a fixing member (not shown in the figure). The mounting can adopt the ligature area, and the ligature area adopts insulating material to make, and has certain tensile strength, and the ligature area ligature can further improve the bulk strength after a plurality of single frame metallic glass iron core combination concatenations on the iron yoke 40 that the concatenation obtained the iron-cored post and each single frame metallic glass iron core.
The amorphous alloy three-dimensional wound core adopts the single-frame amorphous alloy core, has low no-load loss, low noise and strong short-circuit resistance, and can effectively improve the operation safety.
The embodiment also discloses a transformer which comprises an iron core, wherein the iron core adopts the amorphous alloy three-dimensional wound iron core.
The transformer can be an oil-immersed transformer, a dry-type transformer or other types of transformers. The capacity range of the transformer is 50 kVA-10000 kVA.
In this embodiment, the capacity of the transformer is preferably 2500kVA, the corresponding arc edge R is preferably 2000mm, and the corresponding arc R is preferably 5 mm.
The transformer of the embodiment has the advantages of low no-load loss, low noise, strong short-circuit resistance and the like because the amorphous alloy three-dimensional wound core is adopted, and can reduce the usage amount of other materials such as copper wires, transformer oil and the like and reduce the production cost because the core column is approximately cylindrical and has high filling rate.
It will be understood that the above description is only of the preferred embodiments of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and such modifications and improvements are considered to be within the scope of the invention.
Claims (10)
1. A single-frame amorphous alloy core is characterized by comprising a plurality of laminated core cakes (10),
each layer of the iron core cake is provided with two first frame edges (3) and two second frame edges (4), the first frame edges are used for forming a core column of the single-frame amorphous alloy iron core, the second frame edges are used for forming an iron yoke of the single-frame amorphous alloy iron core,
the interior limit of first frame limit is the straight flange, and the interior limit of second frame limit is the arc limit, and the radius R on this arc limit is: r is more than or equal to 500 and less than or equal to 3000 mm.
2. The single-frame amorphous alloy core according to claim 1, wherein the inner edge of the first frame and the inner edge of the second frame are connected by an arc having a radius r: r is more than or equal to 2 and less than or equal to 20 mm.
3. The single-frame amorphous alloy core according to claim 1, wherein a cross-section of the leg has a semicircular shape including a spliced step edge (6), a first peripheral step edge (71), and a second peripheral step edge (72),
the splicing step edge comprises a plurality of first steps, the top points of the first steps are positioned on the same straight line, and the straight line forms the diameter of the cross section of the stem;
the first peripheral step edge comprises a plurality of second steps, the second peripheral step edge comprises a plurality of third steps, the top point of each second step and the top point of each third step are positioned on the same arc surface, and the arc forms a semicircle of the cross section of the stem.
4. The single-frame amorphous alloy core as recited in any one of claims 1 to 3, wherein said core cake comprises a wound amorphous strip and a support member wrapped on a surface of said amorphous strip,
the amorphous strip is made of an iron-based amorphous alloy material, the thickness of the amorphous strip is 0.01-0.03mm, and the width of the amorphous strip is 10-100 mm;
the support is made of silicon steel strips, and the thickness of the support is 0.1-1 mm.
5. The single-frame amorphous alloy core as recited in any one of claims 1 to 3, further comprising a cured layer disposed between each layer of the core pieces and wrapped outside each of the core pieces.
6. An amorphous alloy three-dimensional wound core, comprising core legs, characterized in that the core legs are formed by splicing three single-frame amorphous alloy cores (9) according to any one of claims 1 to 5 in pairs.
7. The amorphous alloy three-dimensional wound core according to claim 6, wherein three single-frame amorphous alloy cores are arranged in a regular triangle,
the cross section of the core column of each single-frame amorphous alloy iron core is semicircular, the semicircular cross section comprises a splicing step edge (6), a peripheral step edge (71) and a second peripheral step edge (72), the splicing step edge comprises a plurality of first steps, the peripheral step edge comprises a plurality of second steps, and the second peripheral step edge comprises a plurality of third steps;
and for the two spliced single-frame amorphous alloy iron cores, the vertex of the first step of one single-frame amorphous alloy iron core is connected with the vertex of the first step of the other single-frame amorphous alloy iron core.
8. The stereoscopic amorphous alloy wound core according to claim 6, wherein an angle between a splicing surface for splicing two by two in each single-frame amorphous alloy core and an iron yoke thereof is 30 °.
9. The amorphous alloy three-dimensional wound core according to any one of claims 6 to 8, characterized in that the amorphous alloy three-dimensional wound core further comprises an insulating member (8), and the insulating member is arranged between splicing surfaces of every two spliced single-frame amorphous alloy cores.
10. A transformer comprising a core, wherein the core is the amorphous alloy three-dimensional wound core according to any one of claims 6 to 9.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628849A (en) * | 2021-07-16 | 2021-11-09 | 中铁第一勘察设计院集团有限公司 | Transformer core and transformer |
| CN113921259A (en) * | 2020-07-09 | 2022-01-11 | 特变电工智能电气有限责任公司 | Amorphous alloy three-dimensional wound iron core and its manufacturing method, transformer |
| CN115223784A (en) * | 2022-06-06 | 2022-10-21 | 天津珠峰硅钢股份有限公司 | Method for forming single-frame iron core |
| CN115497717A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Three-phase three-column planar iron core, manufacturing method thereof, and transformer |
| CN115497716A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Transformer iron core and transformer |
| CN115497735A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Method for manufacturing transformer iron core |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921259A (en) * | 2020-07-09 | 2022-01-11 | 特变电工智能电气有限责任公司 | Amorphous alloy three-dimensional wound iron core and its manufacturing method, transformer |
| CN115497717A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Three-phase three-column planar iron core, manufacturing method thereof, and transformer |
| CN115497716A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Transformer iron core and transformer |
| CN115497735A (en) * | 2021-06-17 | 2022-12-20 | 特变电工智能电气有限责任公司 | Method for manufacturing transformer iron core |
| CN113628849A (en) * | 2021-07-16 | 2021-11-09 | 中铁第一勘察设计院集团有限公司 | Transformer core and transformer |
| CN115223784A (en) * | 2022-06-06 | 2022-10-21 | 天津珠峰硅钢股份有限公司 | Method for forming single-frame iron core |
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