CN204720295U - A kind of tangent round type coil - Google Patents
A kind of tangent round type coil Download PDFInfo
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- CN204720295U CN204720295U CN201520370778.1U CN201520370778U CN204720295U CN 204720295 U CN204720295 U CN 204720295U CN 201520370778 U CN201520370778 U CN 201520370778U CN 204720295 U CN204720295 U CN 204720295U
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- Prior art keywords
- coil
- tangent
- round type
- iron core
- small arc
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000011888 foil Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 230000001131 transforming effect Effects 0.000 claims description 5
- 239000000123 paper Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a kind of tangent round type coil, comprise coil body, described coil body is wrapped on the Long Circle iron core of transformer, the cross section of described coil body is that class is oval, such ellipse is by two small arc-shapeds and two orthodromes are tangent connects and composes, the radius of described small arc-shaped is less than the radius of orthodrome, described two small arc-shapeds lay respectively at the iron core left and right sides, there is gap in the center of circle of described small arc-shaped and the center of iron core, described two orthodromes lay respectively at the upper and lower two ends of iron core, the tangent connection of adjacent small arc-shaped and the end of orthodrome, to make circle and the circular arc smooth transition of whole class ellipse.This device remains the advantage of Long Circle coil, makes transformer device structure compacter, reduces cost.
Description
Technical field
The utility model relates to a kind of tangent round type coil.
Background technology
Long Circle coil has another name called racetrack-type rotor coil, as the term suggests be exactly by circular coil dimidiation, centre adds one section of straight line portion, what be similar in sports ground is run-track shaped, so gain the name.Compared to traditional circular coil transformer, after adopting Long Circle coil (main also correspondingly thickeies by iron core), the centre-to-centre spacing of transformer is corresponding can be reduced, the window width of iron core narrows, amass at identical core section, iron core window high, transformer size is in the longitudinal direction compacter, use silicon steel sheet less, when silicon steel sheet iron-loss per unit weight is identical, the no-load loss of transformer whole is also minimized.
What present transformer generally adopted is circular coil, but circular coil exists the higher problem of cost.Therefore started to adopt Long Circle coil to replace circular coil in middle-size and small-size distribution transforming, as shown in Figure 1, Long Circle coil takies less space under identical capacity, and the consumption of silicon steel sheet and copper is less, and cost is reduced greatly.But Long Circle coil 5 is due to marginal existence straight line portion, and there is wedge angle by curving into straight line, around not consolidation, can need limit, around limit, wire is beaten consolidation, adding manpower and materials, extending the coiling time in winding process.The more important thing is owing to there is gap, the width of coil to nargin need to stay comparatively large, generally get 8%, waste space, add cost.Coil winding is complete also needs radial oven dry guarantee design size with pressure, adds manufacturing time and cost, brings very large pressure to Workshop Production.
Summary of the invention
The utility model makes improvement for above-mentioned prior art Problems existing, namely technical problem to be solved in the utility model is to provide a kind of tangent round type coil, makes transformer device structure compacter, reduces cost, save the coiling cycle, coil mechanical strength can also have been strengthened.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present utility model is: a kind of tangent round type coil, comprise coil body, described coil body is wrapped on the Long Circle iron core of transformer, the cross section of described coil body is that class is oval, such ellipse is by two small arc-shapeds and two orthodromes are tangent connects and composes, the radius of described small arc-shaped is less than the radius of orthodrome, described two small arc-shapeds lay respectively at the iron core left and right sides, there is gap in the center of circle of described small arc-shaped and the center of iron core, described two orthodromes lay respectively at the upper and lower two ends of iron core, the tangent connection of adjacent small arc-shaped and the end of orthodrome, to make circle and the circular arc smooth transition of whole class ellipse.
Further, described tangent round type coil is applicable to wire wound coil in distribution transforming and foil coil.
Further, when described tangent round type coil is used in wire wound coil, when the upper and lower two ends of coil meet temperature increase requirement, the heat radiation oil duct at coil both ends flattens to save space.
Further, when described tangent round type coil is used in foil coil, weld copper bar owing to will do on Copper Foil, a low-pressure side of described coil should flatten for placing lead-in wire.
Further, the internal diameter 3mm larger than iron core external diameter of described innermost layer coil, fills up with cardboard or some gummed paper in this 3mm gap.
In order to solve the problems of the technologies described above, another kind of technical scheme of the present utility model is: a kind of manufacture method of tangent round type coil, carries out according to the following steps:
(1) winding mould makes: the cross section of this winding mould is that class is oval, such ellipse is by two small arc-shapeds and two orthodromes are tangent connects and composes, the radius of described small arc-shaped is less than the radius of orthodrome, described two small arc-shapeds lay respectively at the left and right sides of winding mould central point, there is gap in the center of circle and the winding mould central point of described small arc-shaped, described two orthodromes lay respectively at the upper and lower two ends of winding mould central point, the tangent connection of adjacent small arc-shaped and the end of orthodrome, to make circle and the circular arc smooth transition of whole class ellipse;
(2) tangent round type coil makes: insert in winding mould by copper cash or Copper Foil, produce satisfactory tangent round type coil, then is taken off by coil and be set on Long Circle iron core.
Further, the tangent round type coil in step (2) is applicable to wire wound coil in distribution transforming and foil coil.
Further, when described tangent round type coil is used in wire wound coil, when the upper and lower two ends of coil meet temperature increase requirement, the heat radiation oil duct at coil both ends flattens to save space.
Further, when described tangent round type coil is used in foil coil, weld copper bar owing to will do on Copper Foil, a low-pressure side of described coil should flatten for placing lead-in wire.
Further, when described coil is set on iron core, be positioned at the internal diameter 3mm larger than iron core external diameter of innermost layer coil, fill up with cardboard or some gummed paper in this 3mm gap.
Compared with prior art, the utility model has following beneficial effect:
1, remain the advantage of Long Circle coil, make transformer device structure compacter, reduce cost;
2, circle and arc transition nature, there is not wedge angle and straight line portion, wire coiling is compact, not only reduces and the loaded down with trivial details operation such as to beat, saved the coiling cycle, can also strengthen coil mechanical strength;
3, when the reduction in gap can reduce design, the width of coil is to nargin, 3 ~ 4% are reduced to by original 8%, make the structure compact and reasonable more of transformer, reduce cost of manufacture, coil winding is complete simultaneously does not need radial oven dry with pressure just can ensure design size, shorten the product manufacturing cycle, product competitiveness is stronger.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the organigram of original Long Circle coil.
Fig. 2 is the organigram that the utility model embodiment tangent circle coil is used in wire wound coil.
Fig. 3 is the organigram that the utility model embodiment tangent circle coil is used in foil coil.
In figure: 1-Long Circle iron core, 2-wire wound coil, 3-foil coil, 31-copper bar, 4-heat radiation oil duct, 5-Long Circle coil, the radius of R1-small arc-shaped, the radius of R2-orthodrome, the distance of A-small arc-shaped and core center.
Embodiment
Embodiment one: as shown in Fig. 2 ~ 3, a kind of tangent round type coil, comprise coil body, described coil body is wrapped on the Long Circle iron core 1 of transformer, the cross section of described coil body is that class is oval, such ellipse connects and composes by the orthodrome of two radiuses to be the small arc-shaped of R1 and two radiuses be R2 is tangent, described R1<R2, described two small arc-shapeds lay respectively at iron core 1 left and right sides, there is distance A in the center of circle of described small arc-shaped and the center of iron core, described two orthodromes lay respectively at the upper and lower two ends of iron core, the tangent connection of adjacent small arc-shaped and the end of orthodrome, to make circle and the circular arc smooth transition of whole class ellipse.
In the present embodiment, described tangent round type coil is applicable to wire wound coil in distribution transforming and foil coil.
In the present embodiment, as shown in Figure 2, when described tangent round type coil is used in wire wound coil 2, when the upper and lower two ends of coil meet temperature increase requirement, the heat radiation oil duct 4 at coil both ends flattens to save space.
In the present embodiment, as shown in Figure 3, when described tangent round type coil is used in foil coil 3, weld copper bar 31 owing to will do on Copper Foil, a low-pressure side of described coil should flatten for placing lead-in wire.
In the present embodiment, the internal diameter 3mm larger than iron core external diameter of described innermost layer coil, fills up with cardboard or some gummed paper in this 3mm gap.
We compare Long Circle coil and tangent round type coil below.For model S13-M-50/10 distribution transformer.Selected equivalent diameter close when designing, about 122mm, and total weight unshakable in one's determination is equal, is all the core dimensions of 132kg, the low-voltage coil wire weight calculating two is all about 29kg.Therefore, under identical design size, two kinds of coil material therefors are substantially suitable.Fig. 1 is Long Circle coil.
Two kinds of form coils no matter major axis or short-axis direction size is all close to equal can be found out.But tangent round type coil has two advantages: (1) tangent round type loop construction is compacter, transition nature consolidation during technique coiling.This has hereinbefore mentions in detail; (2) as shown in the figure, under same size, an oil duct in tangent round type coil, is added.The effect of oil duct is the area of dissipation increasing coil, reduces winding to the temperature rise of oil.The degree of aging of coil insulation greatly can be reduced like this for the reduction of temperature rise the isallobaric device of high overload.So under same size, tangent round type coil dispels the heat better structure compact and reasonable more.
In sum, contrast profile and the performance of these two kinds of coils, tangent round type coil has very large development space.The shortening in product manufacturing cycle and performance are all increased.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a tangent round type coil, comprise coil body, described coil body is wrapped on the Long Circle iron core of transformer, it is characterized in that: the cross section of described coil body is that class is oval, such ellipse is by two small arc-shapeds and two orthodromes are tangent connects and composes, the radius of described small arc-shaped is less than the radius of orthodrome, described two small arc-shapeds lay respectively at the iron core left and right sides, there is gap in the center of circle of described small arc-shaped and the center of iron core, described two orthodromes lay respectively at the upper and lower two ends of iron core, the tangent connection of adjacent small arc-shaped and the end of orthodrome, to make circle and the circular arc smooth transition of whole class ellipse.
2. tangent round type coil according to claim 1, is characterized in that: described tangent round type coil is applicable to wire wound coil in distribution transforming and foil coil.
3. tangent round type coil according to claim 2, is characterized in that: when described tangent round type coil is used in wire wound coil, and when the upper and lower two ends of coil meet temperature increase requirement, the heat radiation oil duct at coil both ends flattens to save space.
4. tangent round type coil according to claim 2, is characterized in that: when described tangent round type coil is used in foil coil, weld copper bar owing to will do on Copper Foil, a low-pressure side of described coil should flatten for placing lead-in wire.
5. the tangent round type coil according to claim 3 or 4, is characterized in that: the internal diameter 3mm larger than iron core external diameter of described innermost layer coil, fills up in this 3mm gap with cardboard or some gummed paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370778.1U CN204720295U (en) | 2015-06-02 | 2015-06-02 | A kind of tangent round type coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370778.1U CN204720295U (en) | 2015-06-02 | 2015-06-02 | A kind of tangent round type coil |
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| Publication Number | Publication Date |
|---|---|
| CN204720295U true CN204720295U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520370778.1U Expired - Fee Related CN204720295U (en) | 2015-06-02 | 2015-06-02 | A kind of tangent round type coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867665A (en) * | 2015-06-02 | 2015-08-26 | 国家电网公司 | Tangent circle type coil and manufacturing method thereof |
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2015
- 2015-06-02 CN CN201520370778.1U patent/CN204720295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867665A (en) * | 2015-06-02 | 2015-08-26 | 国家电网公司 | Tangent circle type coil and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 |
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| CF01 | Termination of patent right due to non-payment of annual fee |