CN221079788U - Layered structure voltage regulating coil - Google Patents
Layered structure voltage regulating coil Download PDFInfo
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- CN221079788U CN221079788U CN202323096095.5U CN202323096095U CN221079788U CN 221079788 U CN221079788 U CN 221079788U CN 202323096095 U CN202323096095 U CN 202323096095U CN 221079788 U CN221079788 U CN 221079788U
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- voltage regulating
- coil
- layered structure
- voltage
- wires
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 50
- 239000000123 paper Substances 0.000 claims description 10
- 239000011111 cardboard Substances 0.000 claims description 5
- 239000011087 paperboard Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a layered structure voltage regulating coil which is arranged outside a coil of a transformer and comprises a hard paper tube wrapped outside the coil of the transformer, wherein a plurality of voltage regulating wires are wound outside the hard paper tube, a wrapping layer is arranged on the outermost layer of the plurality of voltage regulating wires far away from the hard paper tube, the plurality of voltage regulating wires are closely distributed one by one in the vertical direction, and no insulating cushion block is arranged between the voltage regulating wires. Compared with a spiral or continuous voltage regulating coil, the voltage regulating coil with the layered structure has more uniform voltage distribution; the layered structure voltage regulating coil is simpler in structure, does not adopt an insulating cushion block, and is smaller in volume; the layered structure voltage regulating coil has less material consumption, simpler and more convenient processing and lower production cost.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a layered structure voltage regulating coil.
Background
The transformer is a device for changing alternating voltage by utilizing electromagnetic induction principle, and is widely applied to high-voltage power transmission and transformation stations to play roles of voltage transformation, current transformation, impedance transformation, isolation and voltage stabilization. The transformer generally consists of an iron core, and a low-voltage coil and a high-voltage coil wound around the outside of the iron core.
The voltage transformation regulating function of the transformer is realized by a regulating coil arranged on the transformer, and the existing regulating coil is generally in a spiral or continuous structure. The existing voltage regulating coil is generally formed by spirally or continuously forming 8 groups of copper wires, then the upper and lower 16 outgoing heads are correspondingly connected into 9 outgoing wires up and down according to the head marks, and 10 outgoing wires are connected into a load switch together with the lower outgoing head of the high-voltage coil, so that the voltage regulating function is realized. However, the spiral or continuous structure needs to adopt an oil duct cushion block, the radial diameter is larger, so that the overall transformer is larger in size, the upper and lower 16 heads of the transformer are troublesome to butt joint, each head needs to be twisted into a chicken claw or a twist according to the reference number, and the operation is complex.
In summary, the existing voltage-regulating coils have the defects of uneven voltage distribution, complex structure, large occupied space and higher production cost, and the existing voltage-regulating coil structure needs to be improved in the field.
Disclosure of utility model
Therefore, the utility model aims to provide a layered structure voltage regulating coil, which adopts a vertically stacked wire set, improves the uniformity of voltage distribution, reduces the volume, and improves the winding strength and the insulation safety by arranging a wrapping layer.
In order to achieve the above purpose, the utility model provides a layered structure voltage regulating coil which is arranged outside a coil of a transformer and comprises a hard paper tube wrapped outside the coil of the transformer, wherein a plurality of voltage regulating wires are wound outside the hard paper tube, a wrapping layer is arranged on the outermost layer of the hard paper tube far away from the voltage regulating wires, the voltage regulating wires are closely distributed one by one along the vertical direction, and no insulating cushion block is arranged between the voltage regulating wires.
Preferably, the voltage regulating wire is a paper-coated wire.
Preferably, the wrapping layer is a heat shrink tape or a paper board.
Preferably, a supporting strip is arranged between the pressure regulating wires and the cardboard tube.
Preferably, the top ends and the bottom ends of the voltage regulating wires are respectively provided with an insulating end ring, and the insulating end rings are positioned between the supporting strips and the wrapping layers.
Compared with the prior art, the voltage regulating coil with the layered structure has the advantages that: compared with a spiral or continuous voltage regulating coil, the voltage regulating coil with the layered structure has more uniform voltage distribution; the layered structure voltage regulating coil is simpler in structure, does not adopt an insulating cushion block, and is smaller in volume; the layered structure voltage regulating coil has less material consumption, simpler and more convenient processing and lower production cost.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a sectional view of a layer-structured voltage regulating coil according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the voltage regulating coil with the layered structure is arranged outside a coil of a transformer, specifically, the transformer comprises an iron core 10, the outside of the iron core 10 sequentially surrounds a low-voltage coil 11 and a high-voltage coil 12, the voltage regulating coil with the layered structure comprises a hard paper drum 21 wrapped outside the coil of the transformer, a plurality of voltage regulating wires 23 are wound outside the hard paper drum 21, the voltage regulating wires 23 are far away from an outermost wrapping layer 25 of the hard paper drum 21, and the voltage regulating wires 23 are closely distributed one by one in the vertical direction. The voltage regulating wires 23 are vertically stacked, no insulating cushion blocks are arranged between the voltage regulating wires 23, the voltage distribution is more uniform, the structure is more compact, the production and processing efficiency is higher, and the production cost is lower.
Specifically, the voltage-regulating wire 23 is a paper-covered wire, and according to the high-voltage running current of the transformer, the voltage-regulating wire 23 can be a paper-covered single wire, a paper-covered combined wire or a paper-covered transposed wire.
Preferably, a supporting bar 22 is arranged between the plurality of voltage regulating wires 23 and the hard paper drum 21, and the whole shape of the voltage regulating coil can be kept by arranging the supporting bar 22, so that the service life is prolonged.
The wrapping layer 25 is a heat shrinkage belt or a paper coaming, and can improve the overall winding strength and insulation safety through the wrapping layer, avoid discharging caused by insulation problem, and strengthen the mechanical strength of the voltage regulating coil.
The top and bottom ends of the voltage regulating wires 23 are respectively provided with an insulating end ring 24, and the insulating end rings 24 are positioned between the supporting strips 22 and the wrapping layer 25. Insulation safety can be further improved by providing the insulating end ring 24.
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 (5)
1. The utility model provides a layer-type structure voltage regulation coil, sets up in the coil outside of transformer, its characterized in that, including the cardboard tube of parcel outside the coil of transformer, cardboard tube outside coiling a plurality of voltage regulation wires, a plurality of the voltage regulation wire is kept away from the outermost layer of cardboard tube sets up the parcel layer, a plurality of voltage regulation wire is closely arranged along vertical one by one, there is not insulating pad between the voltage regulation wire.
2. The layered structure voltage regulating coil of claim 1, wherein the voltage regulating wire is a paper coated wire.
3. The layered structure voltage regulating coil of claim 1, wherein the wrapping layer is a heat shrink tape or a paper board.
4. The layered structure voltage regulating coil of claim 1, wherein a plurality of said voltage regulating wires and said cardboard tube are provided with support strips therebetween.
5. The layered structure voltage regulating coil of claim 4, wherein the top and bottom ends of the plurality of voltage regulating wires are respectively provided with an insulating end ring, and the insulating end rings are positioned between the supporting strips and the wrapping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323096095.5U CN221079788U (en) | 2023-11-16 | 2023-11-16 | Layered structure voltage regulating coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323096095.5U CN221079788U (en) | 2023-11-16 | 2023-11-16 | Layered structure voltage regulating coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221079788U true CN221079788U (en) | 2024-06-04 |
Family
ID=91272127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323096095.5U Active CN221079788U (en) | 2023-11-16 | 2023-11-16 | Layered structure voltage regulating coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221079788U (en) |
-
2023
- 2023-11-16 CN CN202323096095.5U patent/CN221079788U/en active Active
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