CN220400377U - Single-phase two-frame three-column iron core structure of transformer - Google Patents
Single-phase two-frame three-column iron core structure of transformer Download PDFInfo
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- CN220400377U CN220400377U CN202321490489.6U CN202321490489U CN220400377U CN 220400377 U CN220400377 U CN 220400377U CN 202321490489 U CN202321490489 U CN 202321490489U CN 220400377 U CN220400377 U CN 220400377U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000003475 lamination Methods 0.000 claims abstract description 15
- 239000011087 paperboard Substances 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 30
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004804 winding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
A single-phase two-frame three-column iron core structure of a transformer belongs to the technical field of transformers and comprises two iron core frames, wherein the two iron core frames are horizontally arranged and are clamped with an iron core column oil duct, and the two iron core frames are completely symmetrical with the iron core column oil duct and form a complete iron core; the stacked stage of the iron core adopts a longitudinal stepping structure, the iron core adopts four-stage full-oblique joint type lamination, the first stage to the third stage adopt four joints, the second stage adopts two joints, the iron core is not subjected to chamfering, the iron core sheet of the iron core is a trapezoid sheet and has no V-shaped notch; the outside of two iron core frames is equipped with the outside post that corresponds each other, and the inboard of two iron core frames is equipped with the inboard post of mutual symmetry, and two inboard post clamp stem oil duct can constitute the stem of iron core. The single-phase two-frame three-column iron core structure of the transformer has the advantages of reasonable design, simple structure, convenience in assembly, capability of effectively improving the production efficiency of iron core laminations and the utilization rate of silicon steel sheets, good economic benefit and suitability for popularization.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a single-phase two-frame three-column iron core structure of a transformer.
Background
The transformer is a device for changing an ac voltage by using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core. The single-phase vertical core type iron core is commonly adopted in the traction transformer field, the common single-phase core type iron core has two structural forms of single-phase double columns and single-phase three columns, the section of the iron core is in a graded cylindrical shape, a winding surrounds the core column, and the diameter of the iron core column is in direct proportion to the capacity of the transformer. The single-phase double-column structure has the defects of large winding quantity, small radial direction, poor short circuit resistance, large workload of winding procedures, low safety and the like.
The prior art discloses a single-phase three-limb iron core and a transformer, wherein the iron core comprises side column sheets positioned at two sides, a middle column sheet arranged between the two side column sheets, two upper yoke sheets arranged at the upper ends of the side column sheets and the middle column sheet, and two lower yoke sheets arranged at the lower ends of the side column sheets and the middle column sheet; the outer edges of the upper yoke piece, the lower yoke piece and the side column piece are enclosed into a rectangle; one side of the middle column sheet and one of the side column sheets, the upper yoke sheet and the lower yoke sheet form a hollow large window, and the other side of the middle column sheet and the other side column sheet, the upper yoke sheet and the lower yoke sheet form a hollow small window, wherein the windows of the large window and the small window are rectangular; the side column piece, the upper yoke piece and the lower yoke piece are isosceles trapezoids with the bottom angle of 45 degrees, and the middle column piece is a hexagon formed by splicing long bottom edges of the two isosceles trapezoids with the bottom angle of 45 degrees.
Although the above-mentioned prior art can solve the problem of low safety, the following technical problems still exist in the actual assembly process: the iron core sheet has the advantages of complex overall structure, large usage amount of the iron core sheet and troublesome blanking, greatly increased assembly difficulty, low production efficiency and greatly reduced utilization rate of the silicon steel sheet.
Disclosure of Invention
The utility model aims to overcome the defects of low production efficiency, low silicon steel sheet utilization rate and the like in the prior art, and provides a single-phase two-frame three-column iron core structure of a transformer, which has the advantages of reasonable design, simple structure and convenient assembly, can effectively improve the production efficiency of iron core lamination and the utilization rate of the silicon steel sheet, has better economic benefit and is suitable for popularization.
The utility model is realized by the following technical scheme: the single-phase two-frame three-column iron core structure of the transformer comprises two iron core frames, wherein the two iron core frames are horizontally arranged, an iron core column oil duct is clamped between the two iron core frames, and the two iron core frames are completely symmetrical through the iron core column oil duct and form a complete iron core; the stacked stage of the iron core adopts a longitudinal stepping structure, the iron core adopts four-stage full-oblique joint type lamination, the first stage to the third stage adopt four joints, the second stage adopts two joints, the iron core is not subjected to chamfering, the iron core sheet of the iron core is a trapezoid sheet and has no V-shaped notch; the outside of two iron core frames is provided with the outside post that corresponds each other, and the inboard of two iron core frames is provided with the inboard post of mutual symmetry, and two inboard post clamp core post oil duct can constitute the heart post of iron core.
The iron core adopts a longitudinal stepping structure when in lamination, the iron core adopts four-stage full-oblique joint lamination, four joints are adopted from the first stage to the third stage, two joints are adopted from the second stage, the iron core is not subjected to chamfering, the iron core sheet of the iron core is a trapezoid sheet, and a V-shaped notch is avoided. The two outer side columns are side columns of the iron core, and the core column formed by clamping the core column oil channels by the two inner side columns is the middle column of the iron core. The structure of the two frames and three columns solves the problems of more iron core sheets and complicated blanking of the iron core sheets of the transformer, greatly optimizes the production efficiency of the iron core lamination and improves the utilization rate of the silicon steel sheets.
According to the utility model, the two iron core frames are formed by stacking iron core sheets with different widths, and the sectional areas of the double side columns of the iron core frames and the upper iron yoke and the lower iron yoke are the same. The structure is more reasonable and convenient to assemble.
The utility model further improves that connecting pieces are inserted at the middle-stage iron core pieces at the two sides of the core column oil duct, and the exposed parts of the connecting pieces are insulated. The insertion depth of the connecting sheet is at least 150mm. The structure is more reliable, and the stability of the stem oil duct can be greatly improved.
The utility model further improves that the stem oil duct adopts a structure of an insulating paperboard bonding pad block, and comprises an insulating paperboard, a stay and a pad block; the stay is uniformly arranged on the insulating paperboard and forms a stem oil duct, and one end of the stay, which is convex, extends out of the insulating paperboard and is matched with the insulating opening of the pull plate to fix the position of the stem oil duct; the cushion blocks are arranged at two ends of the insulating paper board, and the cushion blocks limit the insulating paper board to be not rocked in the iron core oil duct at the position where the pull plates are not fixed in an insulating way. The stem oil duct with the structure is convenient to assemble and has better stability.
The utility model further improves that the section of the outer column is elliptical, the section of the inner column is semicircular, and the two semicircular inner columns are clamped by the central column oil duct to form a central column with a circular section. The structure of the outer side column and the inner side column is convenient for assembly, and can improve the working efficiency.
From the technical scheme, the beneficial effects of the utility model are as follows: the iron core adopts a longitudinal stepping structure when in lamination, the iron core adopts four-stage full-oblique joint lamination, four joints are adopted from the first stage to the third stage, two joints are adopted from the second stage, the iron core is not subjected to chamfering, the iron core sheet is a trapezoid sheet, and a V-shaped notch is avoided. The two outer side columns are side columns of the iron core, and the core column formed by clamping the core column oil channels by the two inner side columns is the middle column of the iron core. The structure of the two frames and three columns solves the problems of more iron core sheets and complicated blanking of the iron core sheets of the transformer, greatly optimizes the production efficiency of the iron core lamination and improves the utilization rate of the silicon steel sheets.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an iron core frame and a stem oil duct according to the present utility model.
Fig. 2 is a schematic structural view of an embodiment of the present utility model.
Fig. 3 is an enlarged view of a portion a in fig. 2.
1. A core frame; 2. a stem oil passage; 3. a core; 4. an outer column; 5. an inner column; 6. a fixed beam; 7. a side-pulling screw; 8. a connecting sheet; 9. the pulling plate is insulated; 10. and (5) cushion blocks.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.
Referring now to fig. 1-3, in connection with the specific embodiments, the following is described: the utility model relates to a single-phase two-frame three-column iron core structure of a transformer, which comprises two iron core frames 1, wherein the two iron core frames 1 are horizontally arranged, an iron core column oil duct 2 is clamped between the two iron core frames 1, and the two iron core frames 1 are completely symmetrical through the iron core column oil duct 2 and form a complete iron core 3; the lamination stage of the iron core 3 adopts a longitudinal stepping structure, the iron core 3 adopts four-stage full-oblique joint lamination, the first stage to the last third stage adopt four joints, the latter two stages adopt two joints, the iron core 3 is not subjected to chamfering, the iron core sheet of the iron core is a trapezoid sheet and has no V-shaped notch; the outer sides of the two iron core frames 1 are provided with outer side columns 4 corresponding to each other, the inner sides of the two iron core frames 1 are provided with inner side columns 5 symmetrical to each other, and the two inner side columns 5 are clamped with the core column oil duct 2 to form a core column of the iron core 3.
The application principle of the utility model is as follows: during assembly, the two iron core frames 1 are clamped and fixed through insulating pieces such as the fixed beam 6, the foot pads, the side pull screw rods 7 and the clamping pieces. The iron core is stacked in a longitudinal stepping structure, the iron core 3 is stacked in a four-stage full-oblique joint mode, four joints are adopted from the first stage to the third to last stage, two joints are adopted from the last stage, the iron core 3 is not subjected to chamfering, and the iron core sheet of the iron core 3 is a trapezoid sheet and has no V-shaped notch. The two outer side columns 4 are side columns of the iron core 3, and the core column formed by sandwiching the core column oil duct 2 by the two inner side columns 5 is a center column of the iron core 3. The structure of the two frames and three columns solves the problems of more iron core sheets and complicated blanking of the iron core sheets of the transformer, greatly optimizes the production efficiency of the iron core lamination and improves the utilization rate of the silicon steel sheets.
In one embodiment, the two iron core frames 1 are formed by stacking iron core sheets with different widths, and the sectional areas of the two side columns of the iron core frames 1 and the upper iron yoke and the lower iron yoke are the same. The structure is more reasonable and convenient to assemble.
In one embodiment, connecting pieces 8 are inserted at the middle-stage core pieces on two sides of the core column oil duct 2, and exposed parts of the connecting pieces 8 are insulated. The insertion depth of the connecting piece 8 is at least 150mm. The structure is more reliable, and the stability of the stem oil duct 2 can be greatly improved.
In one embodiment, the stem oil duct 2 adopts a structure of an insulating paperboard sticky block and comprises an insulating paperboard, a stay and a block 10; the stay is uniformly arranged on the insulating paperboard and forms a stem oil duct 2, and one end of the stay, which is convex, extends out of the insulating paperboard and is matched with the opening of the pull plate insulation 9 to fix the position of the stem oil duct 2; the cushion blocks 10 are arranged at two ends of the insulating paper board, and the cushion blocks 10 limit the insulating paper board to not shake in the iron core oil duct at the position where the pull plate-free insulation 9 is fixed. The stem oil duct 2 with the structure is convenient to assemble and has better stability.
In one embodiment, the section of the outer side column 4 is elliptical, the section of the inner side column 5 is semicircular, and the two semicircular inner side columns 5 sandwich the core column oil duct 2 to form a center column with a circular section. The structure of the outer side column 4 and the inner side column 5 is convenient for assembly, and can improve the working efficiency.
In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments are only required to be referred to each other.
The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a single-phase two frame three post iron core structures of transformer, includes two iron core frame (1), its characterized in that: the two iron core frames (1) are horizontally arranged, an iron core column oil duct (2) is clamped between the two iron core frames (1), and the two iron core frames (1) are completely symmetrical through the iron core column oil duct (2) and form a complete iron core (3); the lamination stage of the iron core (3) adopts a longitudinal stepping structure, the iron core (3) adopts four-stage full-oblique joint lamination, four joints are adopted from the first stage to the third to last stage, the second joint is adopted from the last stage, the iron core (3) is not subjected to corner removal, and the iron core sheet of the iron core (3) is a trapezoid sheet and has no V-shaped notch; the outer sides of the two iron core frames (1) are provided with corresponding outer side columns (4), the inner sides of the two iron core frames (1) are provided with inner side columns (5) which are symmetrical to each other, and the two inner side columns (5) are clamped with the core column oil channels (2) to form the core column of the iron core (3).
2. The single-phase two-frame three-leg core structure of a transformer according to claim 1, wherein: the two iron core frames (1) are formed by stacking iron core sheets with different widths, and the sectional areas of the double side columns and the upper iron yoke and the lower iron yoke of the iron core frames (1) are the same.
3. The single-phase two-frame three-leg core structure of a transformer according to claim 1, wherein: connecting pieces (8) are inserted at the middle-stage iron core pieces at the two sides of the core column oil duct (2), and exposed parts of the connecting pieces (8) are insulated.
4. A single-phase two-frame three-leg core structure of a transformer according to claim 3, wherein: the insertion depth of the connecting piece (8) is at least 150mm.
5. The single-phase two-frame three-leg core structure of a transformer according to claim 1, wherein: the stem oil duct (2) adopts a structure of an insulating paperboard bonding pad and comprises an insulating paperboard, a stay and a pad (10); the stay evenly arranges on insulating cardboard and constitutes stem oil duct (2), and the stay has convex one end to stretch out insulating cardboard and with arm-tie insulation (9) trompil cooperation in order to fix the position of stem oil duct (2), and both ends of insulating cardboard are arranged in to cushion (10).
6. The single-phase two-frame three-leg core structure of a transformer according to claim 1, wherein: the section of the outer side column (4) is elliptical, the section of the inner side column (5) is semicircular, and the two semicircular inner side columns (5) are clamped with the core column oil duct (2) to form a middle column with a circular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490489.6U CN220400377U (en) | 2023-06-12 | 2023-06-12 | Single-phase two-frame three-column iron core structure of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490489.6U CN220400377U (en) | 2023-06-12 | 2023-06-12 | Single-phase two-frame three-column iron core structure of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220400377U true CN220400377U (en) | 2024-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321490489.6U Active CN220400377U (en) | 2023-06-12 | 2023-06-12 | Single-phase two-frame three-column iron core structure of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220400377U (en) |
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2023
- 2023-06-12 CN CN202321490489.6U patent/CN220400377U/en active Active
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