CN219658521U - Parallel wire winding structure of transformer coil - Google Patents
Parallel wire winding structure of transformer coil Download PDFInfo
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- CN219658521U CN219658521U CN202320628821.4U CN202320628821U CN219658521U CN 219658521 U CN219658521 U CN 219658521U CN 202320628821 U CN202320628821 U CN 202320628821U CN 219658521 U CN219658521 U CN 219658521U
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- 238000004804 winding Methods 0.000 title claims abstract description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000012771 pancakes Nutrition 0.000 claims description 22
- 239000004020 conductor Substances 0.000 abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Abstract
A winding structure of parallel wires of a transformer coil relates to the technical problem of the transformer coil, solves the problem of overlarge distribution current of local wire groups caused by different impedances of different positions of the parallel wires of the transformer coil, and comprises the following steps: the transformer iron core is provided with a winding window, a plurality of groups of wire groups are arranged on the winding window and connected in parallel, each wire group comprises 2 cake wires, the 2 cake wires of each wire group are respectively arranged on the winding windows with different heights, the 1 st cake wire of each adjacent wire group is arranged at the adjacent position of the winding window, and the 2 nd cake wire of each adjacent wire group is arranged at the adjacent position of the winding window; the 2 cake conductors of the conductor sets are respectively positioned at different height positions of the winding window, and the corresponding conductors of the adjacent conductor sets are positioned at adjacent positions of the winding window, so that the impedance of the different conductor sets is basically consistent, the current balance degree is improved, and the occurrence of the condition that the conductor sets are discolored or burnt out is avoided when the transformer runs under full load.
Description
Technical Field
The utility model relates to the technical field of transformer coils, in particular to a parallel wire winding structure of a transformer coil.
Background
The transformer coil is a coil, and the coil is needed inside the transformer to operate. The phase numbers are as follows: (1) single-phase transformers: for single-phase loads and three-phase transformer banks. (2) a three-phase transformer: the method is used for rising and falling voltages of a three-phase system. The method comprises the following steps of: the coil of a small transformer is generally made of round copper wire with insulation, and the coil of a large transformer is made of flat copper wire with insulation.
Coils are generally classified into two types, layer and pancake. The turns of the coil are sequentially arranged and continuously wound in layers along the axial direction, and are called layer-type coils. Each layer is cylindrical, which is considered to have good mechanical strength, not easy to deform and convenient to wind. A coil consisting of two layers is called a double-layer cylinder; consisting of multiple layers, known as multi-layer cylinders. After the turns of the coil are continuously wound into wire cakes (wire segments) along the radial direction, the coil formed by axially arranging a plurality of wire cakes is called a pancake coil. Such as continuous and intertwined coils, are all of such coil forms. In addition to the two coil forms described above, the coil interposed between the layer and pancake coil is also a pancake coil, a foil coil, or the like.
When producing some special transformers, a plurality of cakes of wires are required to be connected in parallel, the winding structure in the prior art is shown in figure 2, and the 1 st cake and the 2 nd cake are a group; cake 3 and cake 4 are a small group; cake 5 and cake 6 are a small group; cake 7 and cake 8 are a small group; the 4 subgroups are connected in parallel. The group consisting of the 1 st cake and the 2 nd cake is positioned at the end part of the iron core window, the transverse magnetic leakage of the iron core is larger, and the impedance of the group is high. The group consisting of the 7 th cake and the 8 th cake is positioned in the middle of the height of the iron core window, the transverse magnetic leakage of the iron core is small, and the impedance of the group is low. The 4 groups are connected in parallel, the voltages at the two ends are the same, the passing current with high impedance is smaller, and the passing current with low impedance is larger. When the core is shorter and the difference is larger, a group of wires with larger distribution current may be discolored or burnt out when the transformer is operated at full load.
Disclosure of Invention
Aiming at the problem that the distribution current of local wire groups is overlarge due to different impedances of different positions of parallel wires of a transformer coil in the prior art, the utility model provides a winding structure of the parallel wires of the transformer coil, which ensures that two cakes of each group are positioned at different positions of a core window, and the heights of the core windows of each group are approximately the same, so that the impedances are basically consistent.
The utility model provides a winding structure of parallel wires of a transformer coil, which comprises the following components: and the transformer core is provided with a winding window, a plurality of groups of wire groups are arranged on the winding window and connected in parallel, each wire group comprises 2 cake wires, the 2 cake wires of each wire group are respectively arranged on the winding windows with different heights, the 1 st cake wires of the adjacent wire groups are arranged at adjacent positions of the winding window, and the 2 nd cake wires of the adjacent wire groups are arranged at adjacent positions of the winding window. The 2 cake conductors of the conductor sets are respectively positioned at different height positions of the winding window, and the corresponding conductors of the adjacent conductor sets are positioned at adjacent positions of the winding window, so that the impedance of the different conductor sets is basically consistent, the current balance degree is improved, and the occurrence of the condition that the conductor sets are discolored or burnt out is avoided when the transformer runs under full load.
Further, the wire sets are set to 4 sets, and the effect of consistent impedance of the wire sets is better.
Further, the first group of wires includes a 1 st cake wire and a 2 nd cake wire, the 1 st cake wire and the 2 nd cake wire are arranged on winding windows with different heights, and a 3 rd cake wire can be arranged between the 1 st cake wire and the 2 nd cake wire.
Further, the second group of wires includes 3 rd cake wire and 4 th cake wire, and 3 rd cake wire sets up in the lower part of 1 st cake wire, and 4 th cake wire sets up in the lower part of 2 nd cake wire.
Further, the third group of wires includes a 5 th cake wire and a 6 th cake wire, the 5 th cake wire is disposed at a lower portion of the 3 rd cake wire, and the 6 th cake wire is disposed at a lower portion of the 4 th cake wire.
Further, the fourth group of wires includes a 7 th cake wire and an 8 th cake wire, the 7 th cake wire is disposed at a lower portion of the 5 th cake wire, and the 8 th cake wire is disposed at a lower portion of the 6 th cake wire.
The utility model has the beneficial effects that: the two cakes of each group are positioned at different positions of the iron core window, so that the positions of each group at the iron core window are approximately the same, and the impedance is basically consistent; the 2 cake conductors of the conductor sets are respectively positioned at different height positions of the winding window, and the corresponding conductors of the adjacent conductor sets are positioned at adjacent positions of the winding window, so that the impedance of the different conductor sets is basically consistent, the current balance degree is improved, and the occurrence of the condition that the conductor sets are discolored or burnt out is avoided when the transformer runs under full load.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 shows a winding structure of a parallel wire of a transformer coil according to the present utility model.
Fig. 2 is a winding structure of a parallel wire of a prior art transformer coil.
In the figure, 1, a transformer core, 2, a winding window, 3, a first group of wire groups, 4, a second group of wire groups, 5, a third group of wire groups, 6, a fourth group of wire groups, I, 1 st cake wire, II, 2 nd cake wire, III, 3 rd cake wire, IV, 4 th cake wire, V, 5 th cake wire, VI, 6 th cake wire, VII, 7 th cake wire, VIII, 8 th cake wire.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1 and 2, a parallel wire winding structure of a transformer coil includes: the transformer core 1, the transformer core 1 is provided with wire winding window 2, is provided with multiunit wire group on the wire winding window 2, multiunit wire group parallel connection, and wire group includes 2 cake wires, and the 2 cake wires of single wire group set up respectively on the wire winding window of co-altitude, and the 1 st cake wire of adjacent wire group sets up in wire winding window's adjacent position, and the 2 nd cake wire of adjacent wire group sets up in wire winding window's adjacent position. The 2 cake conductors of the conductor sets are respectively positioned at different height positions of the winding window, and the corresponding conductors of the adjacent conductor sets are positioned at adjacent positions of the winding window, so that the impedance of the different conductor sets is basically consistent, the current balance degree is improved, and the occurrence of the condition that the conductor sets are discolored or burnt out is avoided when the transformer runs under full load.
The wire group is set to 4 groups, the effect of the consistent impedance of the wire group is better, the first group of wire group 3 comprises a 1 st cake wire I and a 2 nd cake wire II, the 1 st cake wire I and the 2 nd cake wire II are arranged on winding windows with different heights, and 3 cake wires can be arranged between the 1 st cake wire I and the 2 nd cake wire II; the second group of wires 4 comprises a 3 rd cake wire III and a 4 th cake wire IV, wherein the 3 rd cake wire III is arranged at the lower part of the 1 st cake wire I, and the 4 th cake wire IV is arranged at the lower part of the 2 nd cake wire II; the third group of wires 5 comprises a 5 th cake wire V and a 6 th cake wire VI, wherein the 5 th cake wire V is arranged at the lower part of the 3 rd cake wire III, and the 6 th cake wire VI is arranged at the lower part of the 4 th cake wire IV; the fourth group of wires 6 comprises a 7 th cake wire VII and an 8 th cake wire VIII, wherein the 7 th cake wire VII is arranged at the lower part of the 5 th cake wire V, and the 8 th cake wire VIII is arranged at the lower part of the 6 th cake wire VI.
The utility model has the beneficial effects that: the two cakes of each group are positioned at different positions of the iron core window, so that the positions of each group at the iron core window are approximately the same, and the impedance is basically consistent; the 2 cake conductors of the conductor sets are respectively positioned at different height positions of the winding window, and the corresponding conductors of the adjacent conductor sets are positioned at adjacent positions of the winding window, so that the impedance of the different conductor sets is basically consistent, the current balance degree is improved, and the occurrence of the condition that the conductor sets are discolored or burnt out is avoided when the transformer runs under full load.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims.
Claims (6)
1. A parallel wire winding structure for a transformer coil, comprising: the transformer iron core is provided with the wire winding window, is provided with multiunit wire group on the wire winding window, multiunit wire group parallel connection, and wire group includes 2 cake wires, and its characterized in that, the 2 cake wires of single wire group set up respectively on the wire winding window of co-altitude, and the 1 st cake wire of adjacent wire group sets up in the adjacent position of wire winding window, and the 2 nd cake wire of adjacent wire group sets up in the adjacent position of wire winding window.
2. The parallel wire winding structure of a transformer coil according to claim 1, wherein the wire groups are arranged in 4 groups.
3. The parallel wire winding structure of a transformer coil according to claim 2, wherein the first wire group includes a 1 st cake wire and a 2 nd cake wire, the 1 st cake wire and the 2 nd cake wire are disposed on winding windows of different heights, and a 3 rd cake wire is disposed at a distance between the 1 st cake wire and the 2 nd cake wire.
4. A parallel wire winding structure of a transformer coil according to claim 3, wherein the second group of wires comprises a 3 rd pancake wire and a 4 th pancake wire, the 3 rd pancake wire being disposed at a lower portion of the 1 st pancake wire, and the 4 th pancake wire being disposed at a lower portion of the 2 nd pancake wire.
5. The parallel wire winding structure of a transformer coil according to claim 4, wherein the third wire group comprises a 5 th pancake wire and a 6 th pancake wire, the 5 th pancake wire being disposed at a lower portion of the 3 rd pancake wire, the 6 th pancake wire being disposed at a lower portion of the 4 th pancake wire.
6. The parallel wire winding structure of a transformer coil according to claim 5, wherein the fourth wire group comprises a 7 th pancake wire and an 8 th pancake wire, the 7 th pancake wire being disposed at a lower portion of the 5 th pancake wire, and the 8 th pancake wire being disposed at a lower portion of the 6 th pancake wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320628821.4U CN219658521U (en) | 2023-03-23 | 2023-03-23 | Parallel wire winding structure of transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320628821.4U CN219658521U (en) | 2023-03-23 | 2023-03-23 | Parallel wire winding structure of transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658521U true CN219658521U (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320628821.4U Active CN219658521U (en) | 2023-03-23 | 2023-03-23 | Parallel wire winding structure of transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658521U (en) |
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2023
- 2023-03-23 CN CN202320628821.4U patent/CN219658521U/en active Active
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