CN204257390U - The high and low pressure coil die of casting dry type transformer - Google Patents
The high and low pressure coil die of casting dry type transformer Download PDFInfo
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- CN204257390U CN204257390U CN201420764689.0U CN201420764689U CN204257390U CN 204257390 U CN204257390 U CN 204257390U CN 201420764689 U CN201420764689 U CN 201420764689U CN 204257390 U CN204257390 U CN 204257390U
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- 238000005266 casting Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000051 modifying effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 229910000976 Electrical steel Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
A kind of high and low pressure coil die of casting dry type transformer, comprise high and low pressure coil die, internal mold is placed in external mold and forms elliptical cylinder-shape housing, it is characterized in that: the cross sectional shape of high and low pressure coil die all forms Long Circle by two long straight lines and two circular arcs, and parallel lines length is less than the arc length continued at parallel lines two ends; The outer coiling of internal mold of high-tension coil mould is placed in external mold, form an overall cylindroid high-tension coil casting mold, external mold one end is corresponding Long Circle, distinguishing characteristics to be the camber line other end be two-section camber line continues mutually with the respective straight line respectively axially open formed, by porose panel capping axially open.Two kinds of design modifyings elliptical shape ratio of original two kinds of coil dies, parallel lines length is obviously greater than arc length, and this is the key solving " swollen bag " problem.Meeting under coil turn prerequisite, making girth the shortest, namely solving the swollen bag of coiling, transformer coil cost can also be reduced.
Description
Technical field
The utility model relates to casting dry type transformer production facility, a kind of high and low pressure coil die of casting dry type transformer.
Background technology
High and low pressure coil material therefor is the one of main of casting dry type transformer cost, and people are exploring each approach always, the material consumption of reduction coil by every possible means.Coil die end surface shape is in the past the ellipsoidal structure of two short lines and two semicircle compositions, see Fig. 8, visible semi arch line length is greater than more than straight length one times, prove that its girth is not the shortest, but the shortest circular coil of girth has been eliminated already, by current national coil die standard, it can only be adjustment ellipse ratio.On existing this mould during coiling copper cash, because straight line portion is short, be easily coiled into circle, jargon swollen bag, so, than the many consumption copper cash pressing mould theory calculate.Simultaneously because the swollen bag of coiling makes coil shape lack of standardization, also bring difficulty to transformer assembling.
Summary of the invention
The purpose of this utility model is to provide a kind of high and low pressure coil die of casting dry type transformer, the elliptical shape ratio of adjustment two kinds of coil dies, meeting under technical requirement prerequisite, making girth the shortest, namely solving the swollen bag of coiling, transformer coil cost can also be reduced.
A kind of high and low pressure coil die of casting dry type transformer, high-tension coil mould and the low-voltage coil mould wherein held, both have radial spacing, are all the elliptical cylinder-shape housings that steel plate is made, cross section is all to be continued the Long Circle formed by parallel long straight line and two terminal circle camber line, it is characterized in that:
The cross sectional shape of A, low-voltage coil mould is: parallel lines length is less than the arc length continued at parallel lines two ends; Radius of curvature R, decides the position of width between parallel lines, two ends arc centers a;
The external mold of B, high-tension coil mould and internal mold form an overall high-tension coil casting mold, it is characterized in that cross sectional shape: internal mold is Long Circle, and parallel lines length is less than the arc length continued at parallel lines two ends; The Long Circle size of external mold is greater than internal mold, and one end is corresponding Long Circle, and distinguishing characteristics is camber line one end is two-section camber line, and continue with respective straight line formation axially open respectively mutually, by porose panel capping axially open.
The high and low pressure coil of transformer is enclosed within the core limb of three-phase, because two designs of the present utility model become Long Circle structure mold, the girth of mould is shortened, therefore with the coil of this mould coiling, when the number of turn is identical, copper cash overall length used is just short, can reduce the consumption of copper cash like this, namely solve swollen bag problem, also assures that the outer limit size of coil.Meanwhile, because such as Fig. 7 the design coil die is elongated circle, the M0 direction of three-phase transformer is shortened, and therefore the consumption of electrical steel sheet also correspondingly reduces.The girth of the oval mould of technology Fig. 8 shortens than ever, and coiling copper cash on mould is shortened.For 2000KVA, the design differs 34mm with original low pressure mould girth, it is taller that every layer of girth shortens coil quantity accordingly, coil is not by length gauge, but press turn indicator, particularly high-tension coil, saving just more, because the high-tension coil number of turn is many, Belt-type tools is will around 591 circles.In addition, because coil becomes elongated circle, also the length of Double layer iron yoke unshakable in one's determination is shortened, therefore reduce the large class material cost of casting dry type transformer main two, namely the consumption of copper material and silicon steel sheet is decreased, meanwhile, also solve and cause the swollen bag of coiling due to oval mould in the past and multiplex copper cash, assemble nonstandard problem.
Become example so that SCB10-2000/10 cast is dry, after adopting novel die, 20.5kg saved by high pressure and low-voltage coil copper material, 20kg saved by silicon steel sheet, and by current price, copper cash saves 20.5x55=1127.5 unit, 20x15=300 unit saved by silicon steel sheet, and every platform saves 1427.5 yuan altogether.Annual output by 100 calculating, is then about 140,000 more than.
Accompanying drawing explanation
Fig. 1 is low-voltage coil mold sections figure of the present utility model;
Fig. 2 a is the front view of Fig. 1 low-voltage coil mould;
Fig. 2 b is the vertical view of Fig. 1 low-voltage coil mould;
Fig. 3 is the sectional view of high-tension coil mould;
Fig. 4 a is high-tension coil mode host visual pattern of the present utility model;
Fig. 4 b is the vertical view of Fig. 3 high-tension coil mould;
Fig. 5 is the upper and lower end circle front view of high-tension coil mould;
Fig. 6 is high-tension coil mold panel schematic diagram;
Fig. 7 is the new shape low-voltage coil sectional dimension figure of the design;
Fig. 8 is original technology low-voltage coil sectional dimension figure.
Embodiment
A high and low pressure coil die for casting dry type transformer, comprises high-tension coil mould and low-voltage coil mould, is all the elliptical cylinder-shape housing that steel plate is made, and cross section is all to be continued the Long Circle formed by parallel long straight line and two terminal circle camber line, it is characterized in that:
The cross sectional shape of embodiment A, low-voltage coil mould 1 is: see Fig. 1 ~ 2, and being continued by parallel long straight line and two ends circular arc forms Long Circle, and parallel lines length is less than the arc length continued at parallel lines two ends; Radius of curvature R, decides the position of width and two ends arc centers a between parallel lines; The shape and size of low-voltage coil mould 1 decide the size of the shape of its high-tension coil 2.C=parallel lines length in Fig. 1, the parallel lines interval width that b=is determined by radian r, a is the center of circle starting point of camber line r, after a=parallel lines length c deducts a.As seen from Figure 1, parallel lines length is obviously greater than arc length, and this is the key solving " swollen bag " problem.
The outer coiling of internal mold 3 of Embodiment B, high-tension coil mould 2 is placed in external mold, external mold 4 and internal mold 3 form an overall cylindroid high-tension coil casting mold 2, cross sectional shape: see Fig. 3 ~ 4, the cross section of internal mold 3 is also Long Circle, the size corresponding with above-mentioned low-voltage coil mould 1 cross sectional shape, size is greater than low-voltage coil mould 1 cross section; External mold 4 makes of corrosion resistant plate, and external mold 4 one end is corresponding Long Circle, and distinguishing characteristics is external mold 4 other end is two-section camber line, and continue with respective straight line axially open respectively mutually that formed, by porose panel 5 capping axially open.Internal mold length L1 shown in Fig. 3, circular arc R 1, width B 1 and external mold line length L2, circular arc R 2, width B 2 are all not identical depending on different transformer capacity.
The design relates to high and low pressure coil and will use simultaneously.The high and low pressure coil section of transformer is all identical with core section, is share core limb with one heart, first low-voltage coil is enclosed within core limb, then high-tension coil is placed on outside low-voltage coil, so high-tension coil sectional dimension is greater than low-voltage coil.
During use:
1. low-voltage coil mould
Be placed in by low-voltage coil mould 1 on foil winding equipment or coil winding machine, then Copper Foil or copper cash carried out coiling on low pressure mould 1, after coiling completes, extracted out by low pressure mould, low-voltage coil is produced complete.
2. high-tension coil mould
The internal mold of high-tension coil mould 2 is placed on coil winding machine, then copper cash is carried out coiling on the internal mold 3 of high-tension coil mould, mould is not extracted out after high pressure internal mold 3 coiling completes, again high pressure external mold 4 is enclosed within mold line to wrap, other accessory is installed: inside and outside mould 3,4 end face edge flexible for Fig. 5 upper and lower end circle 7 being embedded respectively high-tension coil mould, supporting plate 6 is padded at the bottom of lower end turn, and panel 5 is positioned on high-tension coil mould external mold 4 axially open integrator.High-tension coil, after complete matched moulds, carries out resin-cast, is removed by the inside and outside mould 3,4 of high-tension coil mould 2, namely complete the production of high-tension coil after complete.
Claims (2)
1. the low-voltage coil mould of a casting dry type transformer, the elliptical cylinder-shape housing be made up of steel plate, to be continued the Long Circle formed by parallel long straight line and two terminal circle camber line in cross section, it is characterized in that the cross sectional shape of low-voltage coil mould is: parallel lines length is less than the arc length continued at parallel lines two ends; Radius of curvature R, decides the position of width and two ends arc centers a between parallel lines.
2. the high-tension coil mould of a casting dry type transformer, external mold and internal mold are all the elliptical cylinder-shape housings be made up of steel plate, internal mold is placed in the high-tension coil casting mold that in external mold, formation one is overall, it is characterized in that cross sectional shape: internal mold is Long Circle, and parallel lines length is less than the arc length continued at parallel lines two ends; The Long Circle size of external mold is greater than internal mold, and external mold one end is corresponding Long Circle, and distinguishing characteristics is the external mold other end is two-section camber line, and continue with respective straight line formation axially open respectively mutually, by porose panel capping axially open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764689.0U CN204257390U (en) | 2014-12-04 | 2014-12-04 | The high and low pressure coil die of casting dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764689.0U CN204257390U (en) | 2014-12-04 | 2014-12-04 | The high and low pressure coil die of casting dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204257390U true CN204257390U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420764689.0U Active CN204257390U (en) | 2014-12-04 | 2014-12-04 | The high and low pressure coil die of casting dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204257390U (en) |
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2014
- 2014-12-04 CN CN201420764689.0U patent/CN204257390U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Pintuo Technology Co.,Ltd. Assignor: SHENYANG TIANTONG ELECTRIC POWER EQUIPMENT Co.,Ltd. Contract record no.: X2023980042722 Denomination of utility model: High and low voltage coil molds for casting dry-type transformers Granted publication date: 20150408 License type: Common License Record date: 20231007 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Longhua Technology Group Co.,Ltd. Assignor: SHENYANG TIANTONG ELECTRIC POWER EQUIPMENT Co.,Ltd. Contract record no.: X2023980045325 Denomination of utility model: High and low voltage coil molds for casting dry-type transformers Granted publication date: 20150408 License type: Common License Record date: 20231102 |