CN102592791A - Dry-type transformer - Google Patents
Dry-type transformer Download PDFInfo
- Publication number
- CN102592791A CN102592791A CN2012100501434A CN201210050143A CN102592791A CN 102592791 A CN102592791 A CN 102592791A CN 2012100501434 A CN2012100501434 A CN 2012100501434A CN 201210050143 A CN201210050143 A CN 201210050143A CN 102592791 A CN102592791 A CN 102592791A
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- iron core
- dry
- type transformer
- adjacent
- steel sheets
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Abstract
The invention discloses a dry-type transformer with good cooling effect, comprising an iron core, an upper clamping member, a lower clamping member and a coil; wherein the upper clamping member and the lower clamping member are used for clamping the iron core, and the coil is wound on the iron core; the iron core is formed by a plurality of silicon-steel sheets through superposition; a plurality of pieces of epoxy cloth plates are arranged between two adjacent superposed silicon-steel sheets at the middle part of the iron core; and cooling channels which are used for communicating the outer part and the inner part of the iron core are formed between adjacent epoxy cloth plates and the adjacent silicon-steel sheets. The dry-type transformer has the advantages that after the epoxy cloth plates are arranged at the middle part of the iron core, a gap is generated between the two adjacent silicon-steel sheets in the middle, and a plurality of cooling channels which are used for communicating the inner part and the outer part of the iron core are formed, so that the cooling area is increased, and the using efficiency of the dry-type transformer is improved.
Description
Technical field
The present invention relates to a kind of dry-type transformer.
Background technology
The heat radiation of dry-type transformer iron core mainly relies on natural air cooled.At present the structure of dry-type transformer is as shown in Figure 1: two pairs of folders 2 up and down that comprise iron core 1, iron core 1 grasped and be wound on the coil 3 on the iron core 1, iron core 1 is formed by stacking some silicon steel sheets 4.The iron core 1 main mobile heat of taking away iron core 1 generation that relies on surrounding air.The shortcoming of this structure is, when the Capacity Ratio of dry-type transformer was bigger, iron core 1 also will correspondingly increase, and caloric value also sharply increases simultaneously, what does not increase and the radiating surface of iron core 1 is corresponding.Make the heat accumulation that produces because of coil 3 inner iron cores 1 that the temperature of coil 3 is affected, thereby influence the useful life of coil 3.In actual production, often accelerate the heat radiation of iron core 1, so all can increase the cost of manufacturing through increasing coil 3 internal diameters or installation shaft flow fan.
Summary of the invention
Technical problem to be solved by this invention is: the dry-type transformer that a kind of good heat dissipation effect is provided.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of dry-type transformer; Two pairs of folders up and down that comprise iron core, iron core is grasped and be wound on the coil on the iron core; Iron core is formed by stacking some silicon steel sheets, is provided with some epoxy fabric swatch between adjacent two silicon steel sheets of said stack at iron core middle part, heat dissipation channel that is communicated with core interior and iron core exterior of formation between adjacent epoxy fabric swatch and this adjacent silicon steel disc.
The invention has the beneficial effects as follows: after the iron core middle part is provided with the epoxy fabric swatch; Produce the gap between adjacent two silicon steel sheets in the middle of making; And form a plurality of connection core interior and the outside heat dissipation channel of iron core, and increase area of dissipation, improve the service efficiency of dry-type transformer.
Description of drawings
Fig. 1 is the structural representation of dry-type transformer in the background technology;
Fig. 2 is the structural representation of dry-type transformer of the present invention;
Fig. 3 is an A-A cutaway view among Fig. 2.
Among the figure: 1, iron core, 2, folder, 3, coil, 4, silicon steel sheet, 5, the epoxy fabric swatch, 6, heat dissipation channel.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
Like Fig. 2, shown in Figure 3; Dry-type transformer of the present invention; Two pairs of folders 2 up and down that comprise iron core 1, iron core 1 is grasped and be wound on the coil 3 on the iron core 1; Iron core 1 is formed by stacking some silicon steel sheets 4, is provided with some epoxy fabric swatch 5 between adjacent two silicon steel sheets 4 of said stack at iron core 1 middle part, forms a heat dissipation channel 6 that is communicated with inner and iron core 1 exterior of iron core 1 between adjacent epoxy fabric swatch 5 and this adjacent silicon steel disc 4.The epoxy fabric swatch 5 that is positioned at iron core two ends about in the of 1 is vertically placed, and is parallel to each other in the horizontal direction, in iron core 5 oblique placements of the epoxy fabric swatch between the two ends and being parallel to each other about in the of 1.After iron core 1 middle part is provided with epoxy fabric swatch 5; Produce the gap between adjacent two silicon steel sheets 4 in the middle of making; And form the heat dissipation channel that a plurality of connection iron cores 1 are inner and iron core 1 is outside, and increasing area of dissipation, the while does not influence the volume of iron core 1 again; Practice thrift production cost, improved the service efficiency of dry-type transformer.
Claims (1)
1. dry-type transformer; Two pairs of folders up and down that comprise iron core, iron core is grasped and be wound on the coil on the iron core; Iron core is formed by stacking some silicon steel sheets; It is characterized in that: be provided with some epoxy fabric swatch between adjacent two silicon steel sheets of said stack at iron core middle part, heat dissipation channel that is communicated with core interior and iron core exterior of formation between adjacent epoxy fabric swatch and this adjacent silicon steel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100501434A CN102592791A (en) | 2012-02-29 | 2012-02-29 | Dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100501434A CN102592791A (en) | 2012-02-29 | 2012-02-29 | Dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102592791A true CN102592791A (en) | 2012-07-18 |
Family
ID=46481295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100501434A Pending CN102592791A (en) | 2012-02-29 | 2012-02-29 | Dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102592791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449045A (en) * | 2016-08-27 | 2017-02-22 | 卧龙电气集团股份有限公司 | Iron core structure of reel iron core transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162811U (en) * | 1978-05-08 | 1979-11-14 | ||
| JPH04298011A (en) * | 1991-03-27 | 1992-10-21 | Toshiba Corp | Core for stationary induction apparatus |
| CN1536592A (en) * | 2003-04-10 | 2004-10-13 | 飞瑞股份有限公司 | Radiating method of taminated iron core and its structure |
| CN2864936Y (en) * | 2005-12-13 | 2007-01-31 | 中电电气集团有限公司 | Transformer core with air flue |
| CN201210435Y (en) * | 2008-04-30 | 2009-03-18 | 保定天威集团有限公司 | Iron-core cooling air flue |
| CN202443834U (en) * | 2012-02-29 | 2012-09-19 | 张家港新特变科技有限公司 | Dry type transformer |
-
2012
- 2012-02-29 CN CN2012100501434A patent/CN102592791A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162811U (en) * | 1978-05-08 | 1979-11-14 | ||
| JPH04298011A (en) * | 1991-03-27 | 1992-10-21 | Toshiba Corp | Core for stationary induction apparatus |
| CN1536592A (en) * | 2003-04-10 | 2004-10-13 | 飞瑞股份有限公司 | Radiating method of taminated iron core and its structure |
| CN2864936Y (en) * | 2005-12-13 | 2007-01-31 | 中电电气集团有限公司 | Transformer core with air flue |
| CN201210435Y (en) * | 2008-04-30 | 2009-03-18 | 保定天威集团有限公司 | Iron-core cooling air flue |
| CN202443834U (en) * | 2012-02-29 | 2012-09-19 | 张家港新特变科技有限公司 | Dry type transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449045A (en) * | 2016-08-27 | 2017-02-22 | 卧龙电气集团股份有限公司 | Iron core structure of reel iron core transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |