CN220604477U - Coil structure for enhancing short circuit resistance of multi-voltage amorphous alloy dry-type transformer - Google Patents
Coil structure for enhancing short circuit resistance of multi-voltage amorphous alloy dry-type transformer Download PDFInfo
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- CN220604477U CN220604477U CN202322349658.0U CN202322349658U CN220604477U CN 220604477 U CN220604477 U CN 220604477U CN 202322349658 U CN202322349658 U CN 202322349658U CN 220604477 U CN220604477 U CN 220604477U
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 19
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 114
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a coil structure for enhancing short circuit resistance of a multi-voltage amorphous alloy dry-type transformer, which comprises an iron core, a low-voltage winding sleeved on the iron core, and a high-voltage winding sleeved outside the low-voltage winding; the iron core adopts an amorphous alloy iron core, and is a rectangular columnar body; the iron core is sleeved with a plurality of layers of low-voltage windings, a large number of resin stays are clamped between two adjacent layers of low-voltage windings, and a certain gap is formed between two adjacent resin stays for ventilation and heat dissipation; a large number of support plates are clamped between the innermost low-voltage winding and the iron core, and a certain gap is also formed between every two adjacent support plates; the outside of the low-voltage winding at the outermost side is sleeved with an insulating cylinder, the outside of the insulating cylinder is sleeved with a high-voltage winding, and the high-voltage winding comprises a plurality of wire cakes which are axially arranged. The utility model has the beneficial effects that the double low-voltage windings adopt a sleeve winding structure, the iron core adopts an amorphous strip three-column structure, the energy-saving safe and reliable operation of the transformer is ensured, and the double low-voltage winding is mainly applied to a multi-voltage amorphous alloy ventilation dry-type transformer structure.
Description
Technical Field
The utility model belongs to the technical field of transformers, relates to a coil structure for enhancing short circuit resistance of a multi-voltage amorphous alloy dry-type transformer, and particularly relates to a winding structure of a multi-voltage low-voltage winding.
Background
Along with the development of national science and technology, electric equipment is rapidly increased, and complicated and diversified power consumption voltages are accompanied, multiple voltages are needed in unified factories or test places, if transformers with various voltages are purchased, the cost, the occupation of space, the cost of equipment maintenance and the like are increased, and the problem is well solved by the appearance of the multi-voltage transformers.
However, the plurality of coils of the transformer are wound separately and assembled finally, so that the overall mechanical strength is weakened, and the die cost is increased; the low-voltage windings are wound separately, enough assembly space is needed to be reserved, and the windings are mutually independent after being sleeved, so that the short-circuit resistance is weak; due to the structural problem, the space left between windings is large, which causes the problems of increased cost, weak mechanical strength, poor short circuit resistance and the like.
Disclosure of Invention
The utility model provides a coil structure for enhancing short circuit resistance of a multi-voltage amorphous alloy dry-type transformer, which aims to make up for the defects of the prior art.
The utility model is realized by the following technical scheme:
the utility model provides a strengthen coil structure of anti short circuit of multi-voltage amorphous alloy dry-type transformer, includes iron core, the low voltage winding of cover on the iron core, the high voltage winding of cover in the low voltage winding outside, its characterized in that: the iron core adopts an amorphous alloy iron core, and is a rectangular columnar body; the iron core is sleeved with a plurality of layers of low-voltage windings, a large number of resin stays are clamped between two adjacent layers of low-voltage windings, and a certain gap is formed between two adjacent resin stays for ventilation and heat dissipation; a large number of support plates are clamped between the innermost low-voltage winding and the iron core, and a certain gap is also formed between every two adjacent support plates; the outside of the low-voltage winding at the outermost side is sleeved with an insulating cylinder, the outside of the insulating cylinder is sleeved with a high-voltage winding, and the high-voltage winding comprises a plurality of wire cakes which are axially arranged.
The low-voltage winding comprises a first low-voltage winding and a second low-voltage winding which are sleeved together, lead heads of the first low-voltage winding and the second low-voltage winding are arranged oppositely, the lead heads of the 2 coils of the second low-voltage winding, namely, an inner side copper bar and an outer side copper bar, are positioned at one side of the upper end of the winding, and the lead heads of the 2 coils of the first low-voltage winding, namely, the inner side copper bar and the outer side copper bar, are positioned at the other side of the upper end of the winding; the low-voltage winding I and the low-voltage winding II are separated by a resin stay; insulating end rings are arranged at the upper end and the lower end of each low-voltage winding.
The iron core is formed by fixing four identical rectangular columns together, and a rubber pad or an insulating plate is clamped between every two adjacent rectangular columns.
The lead head of the high-voltage winding is positioned at one side of the high-voltage winding; the high-voltage winding is molded and solidified into a whole by resin.
The coil structure of the multi-voltage amorphous alloy dry-type transformer has the advantages that the double low-voltage windings are of a sleeve winding structure, two or more low-voltage windings share one die for winding, the inner ring winding and the outer ring winding are mutually supported, the material cost investment is reduced, and the overall mechanical strength of the transformer is enhanced. The iron core adopts an amorphous strip three-column structure, so that the energy-saving safe and reliable operation of the transformer is ensured.
According to the scheme, the insulation distance between the low-voltage multiple windings can be effectively reduced, the whole structure is compact, the investment of winding time and die cost is saved, the consumable cost is reduced by about 5% according to comparison, and the performances of short circuit resistance, vibration resistance and the like of the transformer are improved. The method is mainly applied to the structure of the multi-voltage amorphous alloy ventilation dry-type transformer.
Drawings
FIG. 1 is a schematic top view of a winding structure of the present utility model;
fig. 2 is a schematic front view (cross-sectional view) of the winding structure of the present utility model.
In the figure: the high-voltage winding comprises an iron core 1, a high-voltage winding 2, a resin stay 3, a gap 4, a supporting plate 5, an insulating cylinder 6, a wire cake 7, a lead head 8 of the high-voltage winding, a first low-voltage winding 9, a second low-voltage winding 10, an inner copper bar 11 of the second low-voltage winding, an outer copper bar 12 of the second low-voltage winding, an inner copper bar 13 of the first low-voltage winding, an outer copper bar 14 of the first low-voltage winding, a rubber pad 15, an insulating plate 16 and an insulating end ring 17.
Detailed Description
The drawings illustrate one embodiment of the utility model.
The utility model relates to a coil structure for enhancing short circuit resistance of a multi-voltage amorphous alloy dry-type transformer, which comprises an iron core 1, a low-voltage winding sleeved on the iron core, and a high-voltage winding 2 sleeved on the outer side of the low-voltage winding, wherein the iron core adopts an amorphous alloy iron core, and the iron core is a rectangular columnar body; a plurality of layers of low-voltage windings are sleeved on the iron core, a large number of resin stays 3 are clamped between two adjacent layers of low-voltage windings, and a certain gap 4 is formed between two adjacent resin stays for ventilation and heat dissipation; a plurality of support plates 5 are clamped between the innermost low-voltage winding and the iron core, and a certain gap 4 is also formed between the adjacent support plates; the outside of the low-voltage winding at the outermost side is sleeved with an insulating cylinder 6, the outside of the insulating cylinder is sleeved with a high-voltage winding, and the high-voltage winding comprises a plurality of wire cakes 7 which are axially arranged.
The low-voltage winding comprises a first low-voltage winding 9 and a second low-voltage winding 10 which are sleeved together, lead heads of the two low-voltage windings are arranged oppositely, the lead heads of the 2 coils of the second low-voltage winding, namely an inner copper bar 11 and an outer copper bar 12, are positioned at one side of the upper end of the winding, and the lead heads of the 2 coils of the first low-voltage winding, namely an inner copper bar 13 and an outer copper bar 14, are positioned at the other side of the upper end of the winding; the low-voltage winding I and the low-voltage winding II are separated by a resin stay 3; insulating end rings 17 are mounted at the upper and lower ends of each low voltage winding.
The iron core is formed by fixing four identical rectangular columns together, and a rubber pad 15 or an insulating plate 16 is clamped between two adjacent rectangular columns.
The lead wire head 8 of the high-voltage winding is positioned at one side of the high-voltage winding; the high-voltage winding is molded and solidified into a whole by resin.
The coil structure of the multi-voltage amorphous alloy dry-type transformer provided by the utility model has the advantages that two or more low-voltage windings share one low-voltage die, copper bars connected by leads of the first low-voltage winding and the second low-voltage winding are arranged oppositely, and the first low-voltage winding and the second low-voltage winding are separated by a resin stay to replace the prior main channel insulation. The inner ring winding and the outer ring winding are mutually supported, so that the material cost investment is reduced, and the integral mechanical strength of the transformer is enhanced. The iron core adopts an amorphous strip three-column structure, so that the energy-saving safe and reliable operation of the transformer is ensured.
Claims (4)
1. The utility model provides a strengthen coil structure of anti short circuit of multi-voltage amorphous alloy dry-type transformer, includes iron core, the low voltage winding of cover on the iron core, the high voltage winding of cover in the low voltage winding outside, its characterized in that: the iron core adopts an amorphous alloy iron core, and is a rectangular columnar body; the iron core is sleeved with a plurality of layers of low-voltage windings, a large number of resin stays are clamped between two adjacent layers of low-voltage windings, and a certain gap is formed between two adjacent resin stays for ventilation and heat dissipation; a large number of support plates are clamped between the innermost low-voltage winding and the iron core, and a certain gap is also formed between every two adjacent support plates; the outside of the low-voltage winding at the outermost side is sleeved with an insulating cylinder, the outside of the insulating cylinder is sleeved with a high-voltage winding, and the high-voltage winding comprises a plurality of wire cakes which are axially arranged.
2. The coil structure for enhancing the short circuit resistance of a multi-voltage amorphous alloy dry-type transformer according to claim 1, wherein: the low-voltage winding comprises a first low-voltage winding and a second low-voltage winding which are sleeved together, lead heads of the first low-voltage winding and the second low-voltage winding are arranged oppositely, the lead heads of the 2 coils of the second low-voltage winding, namely, an inner side copper bar and an outer side copper bar, are positioned at one side of the upper end of the winding, and the lead heads of the 2 coils of the first low-voltage winding, namely, the inner side copper bar and the outer side copper bar, are positioned at the other side of the upper end of the winding; the low-voltage winding I and the low-voltage winding II are separated by a resin stay; insulating end rings are arranged at the upper end and the lower end of each low-voltage winding.
3. The coil structure for enhancing the short circuit resistance of the multi-voltage amorphous alloy dry-type transformer according to claim 1 or 2, characterized in that: the iron core is formed by fixing four identical rectangular columns together, and a rubber pad or an insulating plate is clamped between every two adjacent rectangular columns.
4. The coil structure for enhancing the short circuit resistance of the multi-voltage amorphous alloy dry-type transformer according to claim 1 or 2, characterized in that: the lead head of the high-voltage winding is positioned at one side of the high-voltage winding; the high-voltage winding is molded and solidified into a whole by resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349658.0U CN220604477U (en) | 2023-08-31 | 2023-08-31 | Coil structure for enhancing short circuit resistance of multi-voltage amorphous alloy dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349658.0U CN220604477U (en) | 2023-08-31 | 2023-08-31 | Coil structure for enhancing short circuit resistance of multi-voltage amorphous alloy dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220604477U true CN220604477U (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322349658.0U Active CN220604477U (en) | 2023-08-31 | 2023-08-31 | Coil structure for enhancing short circuit resistance of multi-voltage amorphous alloy dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220604477U (en) |
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2023
- 2023-08-31 CN CN202322349658.0U patent/CN220604477U/en active Active
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