CN209471817U - A kind of inexpensive resistance to shorting loop construction of transformer - Google Patents
A kind of inexpensive resistance to shorting loop construction of transformer Download PDFInfo
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- CN209471817U CN209471817U CN201822158796.XU CN201822158796U CN209471817U CN 209471817 U CN209471817 U CN 209471817U CN 201822158796 U CN201822158796 U CN 201822158796U CN 209471817 U CN209471817 U CN 209471817U
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Abstract
The utility model belongs to field transformer, is related to a kind of inexpensive resistance to shorting loop construction of transformer.Including high-strength insulating cylinder, low voltage winding in transformers, transformer high-voltage coil, the shape of the high-strength insulating cylinder is class rectangle；The low voltage winding in transformers and the opposite two sides of the transformer high-voltage coil are by being suppressed into linear；Coil copper bar is respectively welded in the first floor and tail layer of the low voltage winding in transformers, and the first copper bar backing plate and the second copper bar backing plate are respectively set between the gap formed between coil copper bar two sides and low-voltage coil；The other side opposite with the coil copper bar is arranged in third copper bar backing plate.The high-strength insulating cylinder of the utility model middle line coil structures uses class rectangle, can reduce cost；It is leveled up at coil copper bar, copper bar gets up to lateral coil respective pads, guarantees that coiling is compact.
Description
Technical field
The utility model belongs to transformer technology field, and in particular to a kind of inexpensive resistance to shorting coil knot of transformer
Structure.
Background technique
In the prior art, there are following technical problems for the coil of distribution transformer: coil is round or oval, cost mistake
It is high；Existing coil mesolow copper bar protrusion, easy to damage insulating layer big to next layer of end insulation crushing strength；Existing loop construction
Inside lacks support, and anti-short circuit capability is poor；Outer stay spacing is identical in existing oil duct, because there is protrusion at copper bar, will cause
The phenomenon that stay outside interior cause by that cannot be aligned；The white space that a triangle is had after existing copper bar coiling, is unfavorable for transformation
Device anti-short circuit capability；The coil of copper bar opposite side can exist in the presence of rebound, a sky after coiling because no copper bar supports and not be bonded phenomenon.
Utility model content
In view of the above technical problems, the utility model provides a kind of inexpensive resistance to shorting loop construction of transformer.
The utility model is achieved through the following technical solutions:
A kind of inexpensive resistance to shorting loop construction of transformer, including high-strength insulating cylinder, low voltage winding in transformers, transformation
Device high-tension coil；The shape of the high-strength insulating cylinder is class rectangle, and four angles are right angle inside the high-strength insulating cylinder,
External four angles are arc chord angle；
The low voltage winding in transformers and the transformer high-voltage coil are successively wound on the outer of the high-strength insulating cylinder
Portion；
The low voltage winding in transformers and the opposite two sides of the transformer high-voltage coil are by being suppressed into linear；
It is respectively provided in the opposite other two sides of the low voltage winding in transformers and the transformer high-voltage coil for providing the support of oil circuit
Bar curtain；
Coil copper bar is respectively welded in the first floor and tail layer of the low voltage winding in transformers, in coil copper bar two sides and institute
It states in the gap of low-voltage coil formation and the first copper bar backing plate and the second copper bar backing plate is respectively set；In coil copper bar opposite side
A third copper bar backing plate is respectively set in the first floor and tail layer of low voltage winding in transformers.
Further, the high-strength insulating cylinder uses glass reinforced plastic or resinae insulating materials.
Further, the low voltage winding in transformers carries out coiling using copper foil or aluminium foil；Between every layer of copper foil or
Insulation board prepared by isolation material is set between every layer of aluminium foil.
Further, the transformer high-voltage coil uses copper or aluminum electromagnetic wire coiling.
Further, the stay curtain aligned in layers is arranged, and stay curtain quantity is consistent in every layer of stay curtain, often from the inside to the outside
Spacing in layer stay curtain between adjacent stay curtain gradually broadens, the stay of corresponding position on innermost layer to outermost different layers
Curtain is in line setting, and in every layer of stay curtain stay curtain setting width less than between two end-coil circular arc portions away from
From；The stay curtain is pasted by gummed paper and strip insulating board or plank.
Further, the end face of the first copper bar backing plate and the second copper bar backing plate is the strip plate knot of wedge shape
Structure, material use high-strength insulating material.
Further, the end face of third copper bar backing plate is isosceles trapezoid, and material uses high-strength insulating material.
The advantageous effects of the utility model:
(1) high-strength insulating cylinder uses class rectangle in loop construction provided by the utility model, high-intensitive by limiting
Four angles are right angle inside insulating cylinder, can be avoided damage amorphous alloy core, and the presence because of circular arc is avoided to lead to transformation
Device is difficult to the case where being set with；It is arc chord angle by limiting four angles outside high-strength insulating cylinder, effect is guaranteed in height
The coil of 1 outside coiling of strength dielectric cylinder will not generate boss failure insulating part in four corners transitions smooth.
(2) it in loop construction provided by the utility model, is formed between coil copper bar two sides and low-voltage coil
Gap between the first copper bar backing plate and the second copper bar backing plate is respectively set；First copper bar backing plate and the second copper bar backing plate point
Dian not be in sequence copper bar two sides, transition that can be mellow and full when making coil winding at copper bar, without copper bar protrusion, and make coil by
Power damages insulation in turn, while can play the effect for making coil winding tighter.
(3) in loop construction provided by the utility model, the support of corresponding position on innermost layer to outermost different layers
Bar curtain is in line setting, and the low voltage winding in transformers and the transformer high-voltage coil can be guaranteed by inwardly and outwardly
Short-circuit force when, end can smoothly transmit short-circuit force by strip insulation board aligned in stay curtain, reach
Anti-short circuit capability.
Detailed description of the invention
Fig. 1 is a kind of inexpensive resistance to shorting loop construction schematic diagram of transformer in the utility model embodiment；
Appended drawing reference: 1. high-strength insulating cylinders；2. low-voltage coil；3. high-tension coil；4. stay curtain；5. the first copper bar pad
Plate；6. coil copper bar；7. the second copper bar backing plate；8. third copper bar backing plate.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is explained in further detail the utility model.It should be appreciated that specific embodiment described herein is used only for explaining
The utility model is not used to limit the utility model.
On the contrary, the utility model cover it is any be defined by the claims do in the spirit and scope of the utility model
Substitution, modification, equivalent method and scheme.Further, right below in order to make the public have a better understanding the utility model
It is detailed to describe some specific detail sections in the datail description of the utility model.Do not have for a person skilled in the art
The utility model can also be understood completely in the description of these detail sections.
As shown in Figure 1, the present embodiment provides a kind of inexpensive resistance to shorting loop construction of transformer, including high-strength insulating
Cylinder 1, low voltage winding in transformers 2, transformer high-voltage coil 3；The shape of the high-strength insulating cylinder 1 is class rectangle, described high-strength
Spending four angles inside insulating cylinder is right angle, and external four angles are arc chord angle；In the present embodiment, high-intensitive exhausted by limiting
1 four angles in inside of edge cylinder are right angle, can be avoided damage amorphous alloy core, and the presence because of circular arc is avoided to lead to transformer
It is difficult to the case where being set with；It is arc chord angle by limiting 1 four angles in outside of high-strength insulating cylinder, effect is guaranteed high-strength
The coil of 1 outside coiling of insulating cylinder is spent in four corners transitions smooth, will not generate boss failure insulating part.
The low voltage winding in transformers 2 and the transformer high-voltage coil 3 are successively wound on the high-strength insulating cylinder 1
It is external；
It is linear that the low voltage winding in transformers 2 and the opposite two sides of the transformer high-voltage coil 3 pass through compacting；
Specifically, by after the completion of 3 coiling of the low voltage winding in transformers 2 and the transformer high-voltage coil, it is pressed in two sides, with
Guarantee that two sides are straight line, and then makes the perimeter of low voltage winding in transformers 2 and transformer high-voltage coil 3 can be effectively
Less than circular coil, materials are substantially reduced to reduce cost；
It is respectively provided in the opposite other two sides of the low voltage winding in transformers 2 and the transformer high-voltage coil 3 for mentioning
The stay curtain 4 of oil passage；Wherein, stay curtain 4 can mention for the low voltage winding in transformers 2 and the transformer high-voltage coil 3
For enough oil circuits, the low voltage winding in transformers 2 and the transformer high-voltage coil 3 is made there are enough heat dissipation areas to avoid it
Temperature is excessively high.
In the present embodiment, 4 aligned in layers of stay curtain is arranged, and 4 quantity of stay curtain is consistent in every layer of stay curtain 4, by
Spacing in interior to outer every layer of stay curtain between adjacent stay curtain 4 gradually broadens, corresponding on innermost layer to outermost different layers
The stay curtain 4 of position is in line setting, and in every layer of stay curtain stay curtain 4 setting width less than two end-coil circular arcs
The distance between part；The stay curtain is pasted by gummed paper and strip insulating board or plank.Wherein, innermost layer arrives
The stay curtain 4 of corresponding position is in line setting on outermost different layers, can guarantee the low voltage winding in transformers 2 and described
When transformer high-voltage coil 3 is by short-circuit force inwardly and outwardly, end can pass through length aligned in stay curtain 4
Bar shaped insulation board smoothly transmits short-circuit force, reaches anti-short circuit capability.
The setting width of stay curtain 4, can less than the distance between two end-coil circular arc portions in every layer of stay curtain
Guarantee to be not provided with stay curtain in coil circular arc portion, and then avoids damaging the insulation performance of coil in circular arc.
Coil copper bar 6 is respectively welded in the first floor and tail layer of the low voltage winding in transformers 2, in 6 two sides of coil copper bar
The first copper bar backing plate 5 and the second copper bar backing plate 7 is respectively set in the gap formed with the low-voltage coil 2；In the coil copper
A third copper bar backing plate 8 is respectively set in the first floor and tail layer for arranging the low voltage winding in transformers 2 of 6 opposite sides.
Wherein, coil copper bar 6 is respectively welded in the first floor and tail layer of the low voltage winding in transformers 2, is to reach and draw
The purpose of wiring out.The first copper bar is respectively set between the gap formed between 6 two sides of coil copper bar and low-voltage coil
Backing plate 5 and the second copper bar backing plate 7, the first copper bar backing plate 5 and the second copper bar backing plate 7 are padded respectively in 6 copper bar two sides of sequence, make copper
Transition that can be mellow and full when coil winding at row without copper bar protrusion, and makes coil stress and then damages insulation, while can
To play the effect for making coil winding tighter.
In the present embodiment, the end face of the first copper bar backing plate 5 and the second copper bar backing plate 7 is the strip of wedge shape
Plate construction, material use high-strength insulating material.Preferably, high-density layer pressed wood or high density cardboard are selected.
In the present embodiment, third copper bar backing plate 8 is arranged in the other side opposite with the coil copper bar 6, and end face is etc.
Waist is trapezoidal, and material uses high-strength insulating material.Preferably, high-density layer pressed wood or high density cardboard are selected.Third copper bar pad
Plate 8 can play a part of coiling it is more compact and with copper bar lateral coil symmetrical shape.
In the present embodiment, the high-strength insulating cylinder 1 uses glass reinforced plastic or resinae insulating materials.High-strength insulating cylinder
1 is prepared using above-mentioned material, can guarantee coil winding when on high-strength insulating cylinder 1, when coil is by short-circuit force, high intensity
Insulating cylinder 1, which can give the enough supports of coil, keeps its indeformable.
In the present embodiment, the low voltage winding in transformers 2 carries out coiling using copper foil or aluminium foil；Between every layer of copper foil
Or insulation board prepared by isolation material is set between every layer of aluminium foil.The transformer high-voltage coil 3 uses copper or aluminum electromagnetism
Line coiling.
Claims (7)
1. a kind of inexpensive resistance to shorting loop construction of transformer, including high-strength insulating cylinder (1), low voltage winding in transformers (2),
Transformer high-voltage coil (3)；It is characterized in that, the shape of the high-strength insulating cylinder (1) is class rectangle, the high-strength insulating
Internal four angles of cylinder are right angle, and external four angles are arc chord angle；
The low voltage winding in transformers (2) and the transformer high-voltage coil (3) are successively wound on the high-strength insulating cylinder (1)
Outside；
It is linear that the low voltage winding in transformers (2) and the opposite two sides of the transformer high-voltage coil (3) pass through compacting；
It is respectively provided in the opposite other two sides of the low voltage winding in transformers (2) and the transformer high-voltage coil (3) for providing oil
The stay curtain (4) on road；
Coil copper bar (6) are respectively welded in the first floor and tail layer of the low voltage winding in transformers (2), in the coil copper bar (6) two
The first copper bar backing plate (5) and the second copper bar backing plate (7) is respectively set in the gap that side and the low-voltage coil (2) are formed；Institute
A third copper bar backing plate (8) is respectively set in the first floor and tail layer for stating the low voltage winding in transformers (2) of coil copper bar (6) opposite side.
2. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that the high intensity
Insulating cylinder (1) uses glass reinforced plastic or resinae insulating materials, high-density layer pressboard plank or PVC.
3. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that the transformer
Low-voltage coil (2) carries out coiling using copper foil or aluminium foil；Isolation material is set between every layer of copper foil or between every layer of aluminium foil
The insulation board of preparation.
4. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that the transformer
High-tension coil (3) uses copper or aluminum electromagnetic wire coiling.
5. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that the stay curtain
(4) aligned in layers is arranged, and stay curtain (4) quantity is consistent in every layer of stay curtain (4), from the inside to the outside adjacent stay in every layer of stay curtain
Spacing between curtain (4) gradually broadens, and the stay curtain (4) of corresponding position, which is in line, on innermost layer to outermost different layers sets
Set, and in every layer of stay curtain stay curtain (4) setting width less than the distance between two end-coil circular arc portions；It is described
Stay curtain is pasted by gummed paper and strip insulating board or plank.
6. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that first bronze medal
The end face for arranging backing plate (5) and the second copper bar backing plate (7) is wedge-shaped strip plate construction, and material uses high-strength insulating
Material.
7. the inexpensive resistance to shorting loop construction of a kind of transformer according to claim 1, which is characterized in that third copper bar pad
The end face of plate (8) is isosceles trapezoid, and material uses high-strength insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822158796.XU CN209471817U (en) | 2018-12-21 | 2018-12-21 | A kind of inexpensive resistance to shorting loop construction of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822158796.XU CN209471817U (en) | 2018-12-21 | 2018-12-21 | A kind of inexpensive resistance to shorting loop construction of transformer |
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| Publication Number | Publication Date |
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| CN209471817U true CN209471817U (en) | 2019-10-08 |
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| CN201822158796.XU Active CN209471817U (en) | 2018-12-21 | 2018-12-21 | A kind of inexpensive resistance to shorting loop construction of transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292953A (en) * | 2020-03-13 | 2020-06-16 | 河南泰隆电力设备股份有限公司 | Manufacturing process of burst short circuit resistant amorphous alloy transformer coil |
| CN113284718A (en) * | 2021-05-19 | 2021-08-20 | 云南电网有限责任公司电力科学研究院 | Long-circle transformer winding and method for checking short-circuit-resistant bearing capacity thereof |
-
2018
- 2018-12-21 CN CN201822158796.XU patent/CN209471817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292953A (en) * | 2020-03-13 | 2020-06-16 | 河南泰隆电力设备股份有限公司 | Manufacturing process of burst short circuit resistant amorphous alloy transformer coil |
| CN113284718A (en) * | 2021-05-19 | 2021-08-20 | 云南电网有限责任公司电力科学研究院 | Long-circle transformer winding and method for checking short-circuit-resistant bearing capacity thereof |
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