CN210429524U - Energy-saving and environment-friendly transformer - Google Patents
Energy-saving and environment-friendly transformer Download PDFInfo
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- CN210429524U CN210429524U CN201921439063.1U CN201921439063U CN210429524U CN 210429524 U CN210429524 U CN 210429524U CN 201921439063 U CN201921439063 U CN 201921439063U CN 210429524 U CN210429524 U CN 210429524U
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Abstract
The utility model discloses an energy-saving and environment-friendly transformer, which comprises a box body, an iron core, a low-voltage coil, a high-voltage coil, a stay curtain, a high-voltage lead, a line terminal, a clamping piece and an insulation assembly, wherein an inner chamber is formed in the box body, the iron core is positioned in the inner chamber, the low-voltage coil is wound on the iron core, the high-voltage coil is wound on the low-voltage coil, the stay curtain is arranged between the high-voltage coil and the low-voltage coil, an insulation oil duct for holding transformer oil is formed on the stay curtain, a crepe paper layer is arranged on one side of the stay curtain close to the low-voltage coil, the crepe paper layer is formed by winding a plurality of piled crepe papers around a cladding; the high-voltage coil is connected with the wire outlet terminal through a high-voltage lead, the clamping piece is arranged at one end of the iron core, and the high-voltage lead is arranged on the clamping piece through the insulating assembly. The utility model discloses can avoid welding process to cause the influence to workman's occupational health, improve production efficiency, reduce material and cost of labor are favorable to energy-concerving and environment-protective.
Description
Technical Field
The utility model relates to a transformer field especially relates to energy-concerving and environment-protective transformer.
Background
As shown in fig. 1 and 2, the high-voltage lead structure of the conventional transformer requires welding a support plate 2 on a clip 1, generally, 2 support plates 2 need to be welded, a lead clamp 3 is fixed on the support plate 2, a high-voltage lead 4 is fixed on the lead clamp 3, and a clip insulator 8 is provided between the clip 1 and an iron core 7. The disadvantages of such an arrangement are:
1. the 2 supporting plates 2 need to be welded on the clamp 1, the material and labor cost is high, the production efficiency is low, the welding process is not beneficial to the occupational health of workers, and the clamp is not environment-friendly;
2. a clamp insulation 8 needs to be arranged between the clamp 1 and the iron core 7, the structure of the clamp insulation 8 is relatively complex, and the production efficiency is low due to the fact that procedures such as plate shearing, punching and pasting are needed;
3. the lead clamp 3 needs to be manufactured, and the lead clamp 3 needs to be manufactured by professional personnel with professional equipment, so that the material cost and the labor cost are high.
In addition, the insulation structure of the transformer coil is an important parameter for checking the electrical performance and the service life of the transformer. The existing transformer comprises a low-voltage coil and a high-voltage coil, and generally, an insulating paper board with larger thickness is arranged in an insulating oil passage between the high-voltage coil and the low-voltage coil, and the height of the insulating paper board is higher than that of the end part of the coil, so that the purpose of increasing creepage distance and avoiding creepage is achieved. However, the radial increase of the high-voltage coil can be caused by the insulation structure, the outer diameter of the coil is increased after winding, the raw material cost of the coil is increased, the cost of the transformer is increased, the material consumption is high, and the energy-saving and environment-friendly effects are not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims to provide an energy-concerving and environment-protective transformer can avoid welding process to cause the influence to workman's occupational health, improves production efficiency, reduces material and cost of labor, is favorable to energy-concerving and environment-protective.
The purpose of the utility model is realized by adopting the following technical scheme:
the energy-saving and environment-friendly transformer comprises a box body, an iron core, a low-voltage coil, a high-voltage coil, a stay curtain, a high-voltage lead, a lead-out terminal, a clamping piece and an insulation assembly, wherein an inner chamber is formed in the box body, the iron core is positioned in the inner chamber, the low-voltage coil is wound on the iron core, the high-voltage coil is wound on the low-voltage coil, the stay curtain is arranged between the high-voltage coil and the low-voltage coil, an insulation oil duct for containing transformer oil is formed in the stay curtain, a crepe paper layer is arranged on one side of the stay curtain close to the low-voltage coil, the crepe paper layer is formed by wrapping the low-voltage coil by a plurality of pieces of piled crepe paper in a surrounding mode; the high-voltage coil is connected with the wire outlet terminal through a high-voltage lead wire, the clamping piece is arranged at one end of the iron core, and the high-voltage lead wire is arranged on the clamping piece through an insulating assembly;
the insulating assembly comprises a first insulating plate, a second insulating plate, a fixing ribbon and a limiting ribbon, wherein the first insulating plate is located between the clamping piece and the iron core, the first insulating plate is sleeved outside the clamping piece, the second insulating plate is located between the high-voltage lead and the clamping piece, the second insulating plate is fixed on the high-voltage lead through the fixing ribbon, a containing gap for the second insulating plate to enter is formed between the first insulating plate and the clamping piece, the second insulating plate is fixed on the first insulating plate through the limiting ribbon, and therefore the insulating area of the containing clamping piece is enclosed between the second insulating plate and the first insulating plate.
Furthermore, the crepe paper layer is formed by wrapping at least 4 layers of piled crepe paper around the low-voltage coil.
Furthermore, the crepe paper layer is fixed between the low-voltage coil and the stay curtain through the rhomb paper in an adhesion mode.
Furthermore, two end parts of the low-voltage coil are respectively provided with a first insulating layer.
Furthermore, two end parts of the high-voltage coil are respectively provided with a second insulating layer.
Compared with the prior art, the beneficial effects of the utility model reside in that:
through being equipped with insulating assembly, can play the insulating effect of preferred between messenger's high-voltage lead wire and the folder, compare with prior art, need not to use welding process to weld the extension board on the folder, also need not to adopt the wire clamp and the folder of complicated structure is insulating, not only is of value to workman's occupational health, still can improve production efficiency, reduces material and cost of labor, is favorable to energy-concerving and environment-protective. In addition, the corrugated paper layer is arranged on the stay curtain between the low-voltage coil and the high-voltage coil, so that the height of the corrugated paper layer is higher than that of the high-voltage coil and the low-voltage coil, the creepage phenomenon is avoided, and meanwhile, the raw material cost of the coil can be reduced, so that the cost of the transformer is reduced, and the transformer is beneficial to energy conservation and environmental protection.
Drawings
FIG. 1 is a schematic diagram of a transformer in the prior art;
FIG. 2 is a schematic diagram of a partial structure of a transformer in the prior art;
FIG. 3 is a schematic structural view of the present invention;
fig. 4 is a schematic view of a partial structure of the present invention;
fig. 5 is a schematic structural view of each phase of high-voltage coil and low-voltage coil in the present invention;
fig. 6 is a schematic structural view of a creped paper layer according to the present invention;
fig. 7 is an enlarged schematic view of fig. 6.
In the figure: 1. a clamp; 2. a support plate; 3. a wire clamp; 4. a high voltage lead; 5. a high-voltage coil; 6. a box wall; 7. an iron core; 8. insulating the clamping piece; 9. a low-voltage coil; 10. a stay curtain; 11. a creped paper layer; 12. a first insulating plate; 13. a second insulating plate; 14. fixing the binding belt; 15. a limiting binding belt; 16. a first insulating layer; 17. a second insulating layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 to 7, the energy-saving and environment-friendly transformer disclosed in this embodiment relates to a three-phase transformer.
The energy-saving and environment-friendly transformer comprises a box body, an iron core 7, a low-voltage coil 9, a high-voltage coil 5, a stay curtain 10, a high-voltage lead 4, a wire outlet terminal, a clamp 1 and an insulation assembly, wherein an inner chamber is formed in the box body, the iron core 7 is positioned in the inner chamber, the low-voltage coil 9 is wound on the iron core 7, the high-voltage coil 5 is wound on the low-voltage coil 9, the stay curtain 10 is arranged between the high-voltage coil 5 and the low-voltage coil 9, an insulation oil duct for containing transformer oil is formed in the stay curtain 10, a crepe paper layer 11 is arranged on one side of the stay curtain 10 close to the low-voltage coil 9, the crepe paper layer 11 is formed by wrapping the low-voltage coil 9 by a plurality of stacked crepe; the high-voltage coil 5 is connected with an outlet terminal through a high-voltage lead 4, the clamping piece 1 is arranged at one end of the iron core 7, and the high-voltage lead 4 is arranged on the clamping piece 1 through an insulating assembly;
the insulating assembly comprises a first insulating plate 12, a second insulating plate 13, a fixing cable tie 14 and a limiting cable tie 15, the first insulating plate 12 is located between the clamping piece 1 and the iron core 7, the first insulating plate 12 is sleeved outside the clamping piece 1, the second insulating plate 13 is located between the high-voltage lead wire 4 and the clamping piece 1, the second insulating plate 13 is fixed on the high-voltage lead wire 4 through the fixing cable tie 14, an accommodating gap for the second insulating plate 13 to enter is formed between the first insulating plate 12 and the clamping piece 1, the second insulating plate 13 is fixed on the first insulating plate 12 through the limiting cable tie 15, and therefore an insulating area for accommodating the clamping piece 1 is enclosed between the second insulating plate 13 and the first insulating plate 12.
Compared with the prior art, in the embodiment, an insulating plate, namely, the first insulating plate 12 and the second insulating plate 13, is respectively placed on the inner side and the outer side of the clamp 1, the second insulating plate 13 plays an insulating role between the clamp 1 and the high-voltage lead 4, small holes are formed in the first insulating plate 12 and the second insulating plate 13, then the high-voltage lead 4 is tightly tied on the second insulating plate 13 by using the fixing tie 14, the second insulating plate 13 is tightly tied on the first insulating plate 12 by using the limiting tie 15, so that the iron core and the clamp 1 can play an insulating role, and the high-voltage lead 4 and the clamp 1 can play an insulating role.
In this embodiment, the material of each insulating plate is preferably insulating paper.
This embodiment need not to use the wire to press from both sides 3 and the folder of the complicated structure is insulating 8, and structure simple process, production efficiency is higher, high-voltage lead wire 4 is directly tightened on second insulation board 13 with fixed ribbon 14, be favorable to reducing the width dimension of tank wall 6, and then reduce the overall dimension of transformer, thereby can reduce the area of transformer, reduce the weight of tank wall 6 and transformer oil, can effectively reduce material cost, be of value to energy-concerving and environment-protective, and owing to cancelled wire clamp 3 and the folder of fixed high-voltage lead wire 4 and insulating 8, material and labour cost have been reduced, production efficiency is higher. It should be emphasized that the support plate 2 does not need to be welded on the clamping piece 1 in the embodiment, so that the influence of the welding process on the occupational health of workers can be avoided, the production efficiency is improved, the material and labor cost is reduced, and the energy conservation and the environmental protection are facilitated.
As a preferred embodiment in this embodiment, the crepe paper layer 11 is formed by wrapping the low-voltage coil 9 with at least 4 layers of crepe paper stacked one on another.
Preferably, the crepe paper has a specification of 0.25 × 320 mm, wherein the thickness is 0.25 mm and the length is 320 mm. Compared with the insulating paperboard with the thickness of 4-6 mm adopted in the prior art, the thickness of the crepe paper is smaller than that of the insulating paper, so that the raw material cost of the coil can be reduced while the creepage phenomenon can be avoided by the crepe paper layer 11 in the embodiment, the cost of the transformer is reduced, and the energy conservation and the environmental protection are facilitated.
The crepe paper layer 11 is adhered and fixed between the low-voltage coil 9 and the stay curtain 10 by the diamond paper.
It is worth mentioning that the two end parts of the low-voltage coil 9 are respectively provided with the first insulating layers 16, the two end parts of the low-voltage coil 9 are protected by strengthening, the insulating strength of the coil end part is improved, the creepage distance is greatly increased, the electrical performance of the product is improved, and the service life of the transformer is prolonged.
The better embodiment is that the two end parts of the high-voltage coil 5 are respectively provided with the second insulating layers 17, the two end parts of the high-voltage coil 5 are protected in an enhanced manner, so that the insulating strength of the coil end part is improved, the creepage distance is greatly increased, the electrical performance of the product is improved, and the service life of the transformer is prolonged.
Compared with the prior art, the high-voltage lead 4 and the clamping piece 1 can be insulated better by arranging the insulating assembly, the support plate 2 does not need to be welded on the clamping piece 1 by using a welding process, the lead clamp 3 and the clamping piece insulator 8 with a complex structure do not need to be adopted, the occupation health of workers is benefited, the production efficiency can be improved, the material cost and the labor cost are reduced, and the energy conservation and the environmental protection are facilitated. In addition, the corrugated paper layer 11 is arranged on the stay curtain 10 between the low-voltage coil 9 and the high-voltage coil 5, so that the height of the corrugated paper layer 11 is higher than that of the high-voltage coil 5 and the low-voltage coil 9, the creepage phenomenon is avoided, and meanwhile, the raw material cost of the coils can be reduced, so that the cost of the transformer is reduced, and the energy conservation and the environmental protection are facilitated.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (5)
1. Energy-concerving and environment-protective transformer, its characterized in that: the transformer oil tank comprises a tank body, an iron core, a low-voltage coil, a high-voltage coil, a stay curtain, a high-voltage lead, a wire outlet terminal, a clamp and an insulation assembly, wherein an inner chamber is formed in the tank body, the iron core is positioned in the inner chamber, the low-voltage coil is wound on the iron core, the high-voltage coil is wound on the low-voltage coil, the stay curtain is arranged between the high-voltage coil and the low-voltage coil, an insulation oil duct for containing transformer oil is formed in the stay curtain, a crepe paper layer is arranged on one side of the stay curtain close to the low-voltage coil, the crepe paper layer is formed by wrapping the low-voltage coil with a plurality of pieces of crepe paper in a surrounding mode, and the height; the high-voltage coil is connected with the wire outlet terminal through a high-voltage lead wire, the clamping piece is arranged at one end of the iron core, and the high-voltage lead wire is arranged on the clamping piece through an insulating assembly;
the insulating assembly comprises a first insulating plate, a second insulating plate, a fixing ribbon and a limiting ribbon, wherein the first insulating plate is located between the clamping piece and the iron core, the first insulating plate is sleeved outside the clamping piece, the second insulating plate is located between the high-voltage lead and the clamping piece, the second insulating plate is fixed on the high-voltage lead through the fixing ribbon, a containing gap for the second insulating plate to enter is formed between the first insulating plate and the clamping piece, the second insulating plate is fixed on the first insulating plate through the limiting ribbon, and therefore the insulating area of the containing clamping piece is enclosed between the second insulating plate and the first insulating plate.
2. The energy-saving environment-friendly transformer according to claim 1, characterized in that: the crepe paper layer is formed by wrapping the low-voltage coil with at least 4 layers of piled crepe paper in a surrounding way.
3. The energy-saving and environment-friendly transformer according to claim 1 or 2, characterized in that: the crepe paper layer is fixed between the low-voltage coil and the stay curtain through the adhesion of the diamond paper.
4. The energy-saving environment-friendly transformer according to claim 1, characterized in that: and two end parts of the low-voltage coil are respectively provided with a first insulating layer.
5. The energy-saving and environment-friendly transformer according to claim 1 or 4, characterized in that: and the two end parts of the high-voltage coil are respectively provided with a second insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439063.1U CN210429524U (en) | 2019-08-29 | 2019-08-29 | Energy-saving and environment-friendly transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439063.1U CN210429524U (en) | 2019-08-29 | 2019-08-29 | Energy-saving and environment-friendly transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210429524U true CN210429524U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921439063.1U Active CN210429524U (en) | 2019-08-29 | 2019-08-29 | Energy-saving and environment-friendly transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210429524U (en) |
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2019
- 2019-08-29 CN CN201921439063.1U patent/CN210429524U/en active Active
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