CN203552881U - Photovoltaic power generation transformer - Google Patents
Photovoltaic power generation transformer Download PDFInfo
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- CN203552881U CN203552881U CN201320309227.5U CN201320309227U CN203552881U CN 203552881 U CN203552881 U CN 203552881U CN 201320309227 U CN201320309227 U CN 201320309227U CN 203552881 U CN203552881 U CN 203552881U
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- iron core
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- generation transformer
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Abstract
The utility model relates to a photovoltaic power generation transformer which is characterized by comprising a three-phase iron core arranged in a triangular mode. Each phase of the iron core is formed by coiling silicon steel sheets continuously, and a low-voltage coil and a high-voltage coil are respectively wound around the exterior of each phase of the iron core so that a three-phase coil arranged in a delta shape can be formed. The low-voltage coil and the high-voltage coil of each phase are divided in the axial direction and are separated through a silicon pad and a divided magnetic circuit. Two ends of a vertically-pulling screw are respectively connected with one installing support. A locating structure locates the three-phase coil between the two installing supports, and leading-out bars connected with the three-phase coil are fixed on the installing supports. The photovoltaic power generation transformer is high in impedance and low in energy consumption and is efficient.
Description
Technical field
The utility model relates to a kind of axial split high impedance low loss transformer with magnetic shunt, for photovoltaic generation current transformer, belongs to three-phase low-voltage AC transformer technical field.
Background technology
In traditional photovoltaic generation current transformer, use the structure of reactor and transformer combination or with the transformer device structure of secondary iron, reactor is for filtering, transformer is for electrical isolation.Which kind of structure no matter, transformer all adopts radial division.Therefore list impedance with regard to transformer is low, can not play the effect of filtering high order harmonic component, and harmonic wave must be eliminated by reactor.
Summary of the invention
The technical problems to be solved in the utility model is to provide the highly effective transformer of a kind of high impedance, low energy consumption.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of photovoltaic generation transformer, it is characterized in that: comprise that the three-phase being triangularly arranged is unshakable in one's determination, every iron core is mutually formed by silicon steel sheet continuous reeling, thereby be at every coiling low-voltage coil respectively unshakable in one's determination outer mutually and high-tension coil formation the three-phase coil that isosceles triangle is arranged, the low-voltage coil of each phase and high-tension coil circle divide vertically, between the low-voltage coil of each phase and high-tension coil, by silicagel pad and magnetic shunt, separate, upper drop-down screw rod two ends are connected with a mounting bracket respectively, by location structure, three-phase coil is positioned between two mounting brackets, the row of drawing being connected with three-phase coil is fixed on mounting bracket.
Preferably, described iron core comprises stem, upper yoke and the lower yoke of one, and upper yoke and lower yoke lay respectively at the two ends up and down of stem.
Preferably, described every magnetic circuit closed, flow direction unshakable in one's determination mutually and silicon steel sheet grain orientation are in full accord, and the length of magnetic path of three-phase iron core is completely equal, three-phase magnetic circuit full symmetric.
Preferably, described location structure comprises the collets that are arranged in described three-phase coil both sides, between collets and three-phase coil, is provided with silicagel pad, by the nail pressing being connected with described mounting bracket, described three-phase coil is pressed between the collets of both sides.
The utlity model has following advantage:
The first, fundamentally seam loss, no-load current increase and the noise increase etc. that due to seam, cause have been eliminated.Therefore three-phase no-load electric current complete equipilibrium, no-load current are little, and silicon steel sheet can be saved approximately 20% silicon steel sheet, 2～3% copper material after cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing, and reduces no-load current approximately 70～80%, and noise can reduce approximately 7～8dB.Iron yoke part unshakable in one's determination reduces approximately 25% by material amount than traditional laminated core, and the angle weight of minimizing accounts for gross weight unshakable in one's determination approximately 6%.
The second, short-circuit impedance can be accomplished more than 20% easily.
Three, improved the leakage field of end winding, reduced due to the loss of axial leakage field at end winding, thereby improved efficiency.
Four, due to the about 30-40K of the Double layer iron yoke temperature difference, produce strong cross-ventilation, cold air is from supplementing toward central passage below, and heat radiate from inclined-plane in upper yoke, takes away rapidly the heat that transformer produces in natural circulation.
Five, 3 D stereo iron core makes product with compact structure, rationally distributed, and device body plane area occupied reduces 10-15% than traditional product, and device height degree reduces 10-20%.
Six, adopt triangle volume iron core to reduce iron loss, saved wire rod, heat radiation and overload capacity are stronger, compact conformation volume is little, and integrated transformers efficiency can be reached more than 99%.
Accompanying drawing explanation
A kind of photovoltaic generation that Fig. 1 provides for the utility model structural representation of transformer.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
A kind of photovoltaic generation transformer that Fig. 1 provides for the utility model, every iron core mutually of this transformer comprises upper yoke 1, stem 2 and lower yoke 13, upper yoke 1, stem 2 and lower yoke 13 adopt a continuous silicon steel sheet continuous reeling to form an integral body, magnetic circuit closed, flow direction unshakable in one's determination and silicon steel sheet grain orientation are in full accord, three-phase magnetic circuit length is completely equal, three-phase magnetic circuit length sum is the shortest, three-phase magnetic circuit full symmetric.And there is no seam between stem 2 and upper yoke 1 and lower yoke 13, fundamentally eliminated seam loss, no-load current increase and the noise increase etc. that due to seam, cause.Therefore three-phase no-load electric current complete equipilibrium, no-load current are little, and silicon steel sheet can be saved approximately 20% silicon steel sheet, 2～3% copper material after cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing, and reduces no-load current approximately 70～80%, and noise can reduce approximately 7～8dB.Iron yoke part unshakable in one's determination reduces 25% by material amount than traditional laminated core, and the angle weight of minimizing accounts for gross weight unshakable in one's determination approximately 6%.The every mutually unshakable in one's determination assembled bonding three-phase volume that obtains being triangularly arranged of winding is unshakable in one's determination.
The 3 D stereo iron core that the utility model adopts makes product with compact structure, rationally distributed, and device body plane area occupied reduces 10-15% than traditional product, and device height degree reduces 10-20%.And, adopt triangle volume iron core to reduce iron loss, saved wire rod, heat radiation and overload capacity are stronger, compact conformation volume is little, and integrated transformers efficiency can be reached more than 99%.
After three-phase volume iron core completes, three-phase is rolled up to iron core and be placed on coiling on triangle tri-dimensional wound.First on a stem unshakable in one's determination 2 around low-voltage coil 3, again around high-tension coil 4, high-tension coil 4 and low-voltage coil 3 divide vertically after complete.Suitably strengthen the distance between high-tension coil 4 and low-voltage coil 3, reduce the radial size of high-tension coil 4 and low-voltage coil 3 and increase the number of turn and just can improve impedance.Short-circuit impedance can be accomplished more than 20% easily.Between high-tension coil 4 and low-voltage coil 3, by silicagel pad 11 and magnetic shunt 12, separate.Between high-tension coil 4 and low-voltage coil 3, with magnetic shunt isolation, improved the leakage field of end winding, reduced due to the loss of axial leakage field at end winding, thereby improved efficiency.After a complete phase coil, rotate three-phase framework unshakable in one's determination again around another phase, until all around complete, form the three-phase coil that isosceles triangle is arranged, between coil, form the natural air flue in center of a up/down perforation---" exhausting chimney ", due to the about 30-40K of the Double layer iron yoke temperature difference, produce strong cross-ventilation, cold air is from supplementing toward central passage below, heat radiate from inclined-plane in upper yoke, takes away rapidly the heat that transformer produces in natural circulation.
Then by nail pressing 8 and collets 9, silicagel pad 10, be positioned on support 6 and base 14, fix three-phase coil.By connection set requirement, draw row's connection of 5, and will the row of drawing 5 be arranged on support 6 and complete assembling.
Claims (4)
1. a photovoltaic generation transformer, it is characterized in that: comprise that the three-phase being triangularly arranged is unshakable in one's determination, every iron core is mutually formed by silicon steel sheet continuous reeling, outside every iron core mutually, distinguish coiling low-voltage coil (3) and high-tension coil (4) thereby form and be the three-phase coil that isosceles triangle is arranged, the low-voltage coil of each phase (3) divides vertically with high-tension coil (4), between the low-voltage coil (3) of each phase and high-tension coil (4), by silicagel pad (11) and magnetic shunt (12), separate, upper drop-down screw rod (7) two ends are connected with a mounting bracket (6) respectively, by location structure, three-phase coil is positioned between two mounting brackets (6), the row of drawing being connected with three-phase coil is fixed on mounting bracket (6).
2. a kind of photovoltaic generation transformer as claimed in claim 1, it is characterized in that: described iron core comprises stem (2), upper yoke (1) and the lower yoke (13) of one, upper yoke (1) and lower yoke (13) lay respectively at the two ends up and down of stem (2).
3. a kind of photovoltaic generation transformer as claimed in claim 1, is characterized in that: described every magnetic circuit closed, flow direction unshakable in one's determination mutually and silicon steel sheet grain orientation are in full accord, and the length of magnetic path of three-phase iron core is completely equal, three-phase magnetic circuit full symmetric.
4. a kind of photovoltaic generation transformer as claimed in claim 1, it is characterized in that: described location structure comprises the collets (9) that are arranged in described three-phase coil both sides, between collets (9) and three-phase coil, be provided with silicagel pad (10), by the nail pressing (8) being connected with described mounting bracket (6), described three-phase coil be pressed between the collets (9) of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309227.5U CN203552881U (en) | 2013-05-31 | 2013-05-31 | Photovoltaic power generation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309227.5U CN203552881U (en) | 2013-05-31 | 2013-05-31 | Photovoltaic power generation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552881U true CN203552881U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320309227.5U Expired - Lifetime CN203552881U (en) | 2013-05-31 | 2013-05-31 | Photovoltaic power generation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552881U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258625A (en) * | 2013-05-31 | 2013-08-21 | 上海鹰峰电子科技有限公司 | Photovoltaic power generation transformer |
| CN108597823A (en) * | 2018-05-28 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of novel axial transformer with split winding |
| CN109148098A (en) * | 2018-10-09 | 2019-01-04 | 苏州康开电气有限公司 | Single phase ac current-limiting transformer |
-
2013
- 2013-05-31 CN CN201320309227.5U patent/CN203552881U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258625A (en) * | 2013-05-31 | 2013-08-21 | 上海鹰峰电子科技有限公司 | Photovoltaic power generation transformer |
| CN108597823A (en) * | 2018-05-28 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of novel axial transformer with split winding |
| CN109148098A (en) * | 2018-10-09 | 2019-01-04 | 苏州康开电气有限公司 | Single phase ac current-limiting transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201604 Shanghai Songjiang District Shihudang Industrial Park Tang Road, No. 158 Patentee after: SHANGHAI EAGTOP ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 201604 Shanghai Songjiang District Shihudang Industrial Park Tang Road, No. 158 Patentee before: SHANGHAI EAGTOP ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |