CN102456474A - Transformer coil structure adopting copper foil - Google Patents
Transformer coil structure adopting copper foil Download PDFInfo
- Publication number
- CN102456474A CN102456474A CN2010105135219A CN201010513521A CN102456474A CN 102456474 A CN102456474 A CN 102456474A CN 2010105135219 A CN2010105135219 A CN 2010105135219A CN 201010513521 A CN201010513521 A CN 201010513521A CN 102456474 A CN102456474 A CN 102456474A
- Authority
- CN
- China
- Prior art keywords
- coil
- transformer
- copper foil
- loss
- coil structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000011889 copper foil Substances 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000011162 core material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to a transformer coil structure adopting copper foil, comprising: n turns of coils; the shape of the coil is an elliptical structure; covering a copper foil on the coil; the invention has the beneficial effects that: the material of the iron core is reduced, and the no-load loss of the transformer is reduced.
Description
Technical field
The present invention relates to a kind of transformer, relate in particular to a kind of coil of transformer.
Background technology
Transformer is a kind of static electrical equipment.Utilize electromagnetic induction principle between two or more coils, convert a kind of voltage and current of grade to voltage and current with the another kind of grade of screen rate, and electric energy transmitting.
Coil is the basic element of character of transformer voltage of transformation, and coil is made up of the different numbers of turn, because every circle voltage of different coils is the same, therefore, need make coil that the different numbers of turn is arranged, and reaches different voltages with different.
Insulation at transformer coil in service also will sustain instantaneous atmospheric over-voltage, internal overvoltage (containing switching overvoltage) and long-term work voltage.Atmospheric over-voltage is even more serious to the influence of coil.
Transformer is when operation, and through electric current, the loss that in coil-conductor, has a resistance can cause the efficient of generating heat and reducing transformer in the coil.Coil uses the high metal of conductivity to make for this reason, and conductor commonly used is a copper.
Load loss comprises the stray loss of circulation loss and structural member between eddy current loss and the column wire in winding D.C. resistance loss, the lead in transformer.
The effective ways that reduce the winding D.C. resistance loss are to increase sectional area of wire.
Visible by Fig. 1: because coil 1 of the prior art is circular, volume ratio is bigger, and used copper material is many.The space that winding volume occupies greatly is also big, because coil is enclosed within on the core limb, the volume increase of coil also causes unshakable in one's determination the increase.
Replace copper cash to increase the sectional area of lead with Copper Foil, reduce the direct current loss in the winding, strengthen the overload capability of transformer.
And the no-load performance of transformer core is one of main performance index of transformer.No-load performance comprises no-load loss, no-load current etc.Each item index and the core volume of no-load performance unshakable in one's determination, design is made and core material has relation.
During transformer work, pass through the alternating flux of the sinusoidal variations identical in the iron core with the power supply panel rate.In the electrical steel sheet,, eddy current loss and magnetic hysteresis loss are arranged in silicon steel sheet through the alternating flux of sinusoidal variations.No-load loss is the loss in the lamination more than 99%.
No-load loss is calculated:
No-load loss=supplementary load loss coefficient * (specific loss+stem of stem and iron yoke and iron yoke weight)
How to reduce size unshakable in one's determination, just how designing a kind of loop construction is the problem that the technical staff will solve.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of transformer coil structure that adopts Copper Foil, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
The present invention includes: N circle coil; The shape of described coil is the elliptical shape structure; On described coil, cover Copper Foil.
Compared with prior art, the invention has the beneficial effects as follows: reduce material unshakable in one's determination and also reduced transformer noload losses simultaneously.
Description of drawings
Fig. 1 is the loop construction sketch map of transformer in the prior art;
Fig. 2 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
Visible by Fig. 2: as to the present invention includes: N circle coil 10; The shape of described coil 10 is elliptical shape structures; On described coil 10, cover Copper Foil.
With SCB9-500KVA/10KV is example, and the no-load loss of national Specification transformer is 1305W, through improving, is modified into the ellipse coil to original round coil, can be reduced to 1160W to no-load loss, reaches SCB10 series.
The present invention has been dwindled the volume of coil, makes original prototype coil into the ellipse coil, has dwindled the volume of coil like this; The coil copper consumption has been reduced, replace traditional lead as copper conductor with whole Copper Foil, its compact conformation; Volume is little; Coil can together roll with layer insulation on roll-leaf equipment fast simultaneously, and each layer is a circle, and technique for coiling simple production efficient is high.It is little to release winding volume according to the formula on background technology, and it is little to occupy the space, has also reduced transformer noload losses simultaneously at the material that reduces iron core like this.
Claims (1)
1. a transformer coil structure that adopts Copper Foil comprises: N circle coil; It is characterized in that: the shape of described coil is the elliptical shape structure; On described coil, cover Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105135219A CN102456474A (en) | 2010-10-20 | 2010-10-20 | Transformer coil structure adopting copper foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105135219A CN102456474A (en) | 2010-10-20 | 2010-10-20 | Transformer coil structure adopting copper foil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102456474A true CN102456474A (en) | 2012-05-16 |
Family
ID=46039546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105135219A Pending CN102456474A (en) | 2010-10-20 | 2010-10-20 | Transformer coil structure adopting copper foil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102456474A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508753U (en) * | 2009-09-25 | 2010-06-16 | 济南法奥电气有限责任公司 | Oil immersion-type rectifier transformer specially used for frequency conversion |
| CN201975217U (en) * | 2010-10-20 | 2011-09-14 | 中变集团上海变压器有限公司 | Transformer coil structure adopting copper foils |
-
2010
- 2010-10-20 CN CN2010105135219A patent/CN102456474A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508753U (en) * | 2009-09-25 | 2010-06-16 | 济南法奥电气有限责任公司 | Oil immersion-type rectifier transformer specially used for frequency conversion |
| CN201975217U (en) * | 2010-10-20 | 2011-09-14 | 中变集团上海变压器有限公司 | Transformer coil structure adopting copper foils |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |