CN205211559U - Dry -type transformer - Google Patents
Dry -type transformer Download PDFInfo
- Publication number
- CN205211559U CN205211559U CN201521023772.3U CN201521023772U CN205211559U CN 205211559 U CN205211559 U CN 205211559U CN 201521023772 U CN201521023772 U CN 201521023772U CN 205211559 U CN205211559 U CN 205211559U
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- CN
- China
- Prior art keywords
- fixture block
- cushion block
- coil
- voltage coil
- cushion
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Abstract
The utility model provides a dry -type transformer, includes the cushion, descends cushion, high -pressure coil and low voltage coil, going up the cushion and being umbrella skirt structure with cushion down, the upper surface of going up the cushion is provided with the rectangular channel, is equipped with the rectangle briquetting in the rectangular channel, is fixed with on the rectangle briquetting to press the nail, is fixed with the folder on pressing the nail, and go up the cushion lower part and be provided with the last fixture block that is used for fixing and cutting apart high -pressure coil and low voltage coil, down the cushion lower surface is provided with the long slot bore, and lower folder is through long protruding fixed with the long slot bore cooperation, is provided with on the upper surface of lower cushion to be used for fixedly and to cut apart high -pressure coil and low voltage coil's lower fixture block, and low voltage coil is fixed to be set up in the last fixture block and the left side of fixture block down, and the fixed setting of high -pressure coil is on the right side of last fixture block under and, and the low voltage coil right side is provided with many the polyester film that are used for the insulation, the utility model discloses simple structure avoids overcast and rainy weather to discharge or climb electric phenomena taking place, and is fixed reliable, simplifies working process, puies forward the high heat dissipating ability, reduces the winding temperature rise.
Description
Technical field
The utility model relates to electrical equipment, specifically a kind of dry-type transformer.
Background technology
In recent years, along with the innovation progress of transformer device structure design, loop construction oneself progressively to Long Circle transition, iron core diameter progressively diminishes, thus it is more and more nearer to result in distance between coil and folder from top to bottom, and during power frequency withstand test, creepage phenomenon occurs repeatedly.In addition, the fluctuating range of material price is increasing, and this just requires the main material ratio that will adjust transformer when design of transformer in real time, to reach best cost ratio.The problem that structural adjustment directly causes is exactly the annex of dry-type transformer, and the variation frequency of such as cushion block structure increases thereupon.And dry-type transformer upper lower cushion block used is all formed by die casting, variation structure just must change casting mold, thus result in a large amount of moulds and overstock, and drastically increases the cost of annex, has had a strong impact on renewal speed and the delivery cycle of product; In addition, between existing dry-type transformer high-low pressure winding, for ensureing withstand voltage insulation level, usually between high-low pressure winding, add one deck insulating cylinder, assembly process is complicated, and fluting fixes insulating cylinder on resin cushion block, but, on resin cushion block, fluting can reduce the mechanical strength of cushion block entirety, and insulating cylinder is by separated for high and low pressure coil, reduces the heat dispersion of winding.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, avoids rainy weather to discharge or creepage phenomenon generation, fixing reliable, and simplify operation, improve heat dispersion, the dry-type transformer of minimizing winding temperature rise, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of dry-type transformer, comprise cushion block, lower cushion block, high-tension coil and low-voltage coil, described upper cushion block and lower cushion block are umbrella skirt construction, the upper surface of upper cushion block is provided with rectangular channel, rectangle briquetting is provided with in rectangular channel, rectangle briquetting is fixed with nail pressing, nail pressing is fixed with upper clamping piece, upper cushion block bottom is provided with and is used for fixing and splits the upper fixture block of high-tension coil and low-voltage coil, described lower cushion block lower surface is provided with long slot bore, lower clamping piece coordinates fixing by long projection with long slot bore, the upper surface of lower cushion block is provided with and is used for fixing and splits the lower fixture block of high-tension coil and low-voltage coil, low-voltage coil is fixedly installed on the left side of fixture block and lower fixture block, high-tension coil is fixedly installed on the right side of fixture block and lower fixture block, multiple polyester films for insulating are provided with on the right side of low-voltage coil, polyester film upper end is plugged between low-voltage coil and upper fixture block, polyester film lower end is plugged between low-voltage coil and lower fixture block, high-tension coil upside and lower side are respectively arranged with the soft corner-ring contacted with lower fixture block with upper fixture block.
Further, described soft corner-ring is formed by stacking by multi-layered polyester film.
Further, described upper cushion block lower surface all arranges with lower cushion block upper surface the buffer plate contacted with high-tension coil or low-voltage coil.
Further, described upper clamping piece is fixed in nail pressing by the short clamping plate of upper and lower setting and nut.
Further, described soft corner-ring entirety is arranged in " L " type.
Compared with prior art, the beneficial effects of the utility model are: be provided with multiple polyester films for insulating on the right side of low-voltage coil, polyester film upper end is plugged between low-voltage coil and upper fixture block, and polyester film improves insulation level; High-tension coil upside and lower side are respectively arranged with the soft corner-ring contacted with lower fixture block with upper fixture block, and the soft corner-ring that multi-layered polyester film is formed by stacking can effectively prevent high and low pressure coil from producing phenomenon that is creepage or electric discharge by upper cushion block or lower cushion block; Setting like this, upper cushion block or lower cushion block do not need fluting to place insulating cylinder, improve the mechanical strength of cushion block or lower cushion block, meanwhile, improve heat dispersion, reduce the temperature rise of coil, simplify assembly process; Upper and lower cushion block is arranged to the umbrella skirt construction being with notch, adds creepage distance, avoids the electric discharge phenomena that rainy weather air humidity causes greatly; When coil height changes, by regulating the block number of buffer plate to regulate thickness, thus ensure that the relatively fixing of cushion block or lower cushion block height.When changing at coil pressure-bearing position, lower cushion block position location is carried out front and back by long slot bore and is regulated, and upper cushion block rectangle briquetting regulates by carrying out front and back in the notch of cushion block, and to ensure upper cushion block or lower cushion block uniform force fully, entirety uses stability and safety.The utility model structure is simple, avoids rainy weather to discharge or creepage phenomenon generation, fixing reliable, simplifies operation, improves heat dispersion, minimizing winding temperature rise.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of dry-type transformer.
In figure: the upper cushion block of 1-, 2-lower cushion block, the upper fixture block of 3-, fixture block under 4-, 5-rectangle briquetting, 6-rectangular channel, 7-nail pressing, 8-upper clamping piece, 9-long slot bore, 10-lower clamping piece, 11-buffer plate, 12-high-tension coil, 13-low-voltage coil, 14-polyester film, 15-soft corner-ring.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of dry-type transformer, comprise cushion block 1, lower cushion block 2, high-tension coil 12 and low-voltage coil 13, described upper cushion block 1 and lower cushion block 2 are umbrella skirt construction, the upper surface of upper cushion block 1 is provided with rectangular channel 6, rectangle briquetting 5 is provided with in rectangular channel 6, rectangle briquetting 5 is fixed with nail pressing 7, nail pressing 7 is fixed with upper clamping piece 8, upper cushion block 1 bottom is provided with and is used for fixing and splits the upper fixture block 3 of high-tension coil 12 and low-voltage coil 13, described lower cushion block 2 lower surface is provided with long slot bore 9, lower clamping piece 10 coordinates fixing by long projection with long slot bore 9, the upper surface of lower cushion block 2 is provided with and is used for fixing and splits the lower fixture block 4 of high-tension coil 12 and low-voltage coil 13, low-voltage coil 13 is fixedly installed on the left side of fixture block 3 and lower fixture block 4, high-tension coil 12 is fixedly installed on the right side of fixture block 3 and lower fixture block 4, multiple polyester films 14 for insulating are provided with on the right side of low-voltage coil 13, polyester film 14 upper end is plugged between low-voltage coil 13 and upper fixture block 3, polyester film 14 lower end is plugged between low-voltage coil 13 and lower fixture block 4, high-tension coil 12 upside and lower side are respectively arranged with the soft corner-ring 15 contacted with lower fixture block 4 with upper fixture block 3.
In embodiment, described soft corner-ring 15 is formed by stacking by multi-layered polyester film.
In embodiment, described upper cushion block 1 lower surface all arranges with lower cushion block 2 upper surface the buffer plate 11 contacted with high-tension coil 12 or low-voltage coil 13, and regulating winding height is convenient.
In embodiment, described upper clamping piece 8 is fixed in nail pressing 7 by the short clamping plate of upper and lower setting and nut.
In embodiment, described soft corner-ring 15 entirety is arranged in " L " type, and parts install laminating more closely.
Operation principle of the present utility model is: be provided with multiple polyester films 14 for insulating on the right side of low-voltage coil 13, polyester film 14 upper end is plugged between low-voltage coil 13 and upper fixture block 3, and polyester film 14 improves insulation level; High-tension coil 12 upside and lower side are respectively arranged with the soft corner-ring 15 contacted with lower fixture block 4 with upper fixture block 3, and the soft corner-ring 15 that multi-layered polyester film 14 is formed by stacking can effectively prevent high and low pressure coil from producing phenomenon that is creepage or electric discharge by upper cushion block 1 or lower cushion block 2; Setting like this, upper cushion block 1 or lower cushion block 2 do not need fluting to place insulating cylinder, improve the mechanical strength of cushion block 1 or lower cushion block 2, meanwhile, improve heat dispersion, reduce the temperature rise of coil, simplify assembly process; Upper and lower cushion block is arranged to the umbrella skirt construction being with notch, adds creepage distance, avoids the electric discharge phenomena that rainy weather air humidity causes greatly; When coil height changes, by regulating the block number of buffer plate 11 to regulate thickness, thus ensure that the relatively fixing of cushion block 1 or lower cushion block 2 height.When changing at coil pressure-bearing position, lower cushion block 2 position location is carried out front and back by long slot bore 9 and is regulated, upper cushion block 1 rectangle briquetting 5 regulates by carrying out front and back in the notch of cushion block, to ensure upper cushion block 1 or lower cushion block 2 uniform force fully, and overall use stability and safety.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a dry-type transformer, comprise cushion block, lower cushion block, high-tension coil and low-voltage coil, it is characterized in that, described upper cushion block and lower cushion block are umbrella skirt construction, the upper surface of upper cushion block is provided with rectangular channel, rectangle briquetting is provided with in rectangular channel, rectangle briquetting is fixed with nail pressing, nail pressing is fixed with upper clamping piece, upper cushion block bottom is provided with and is used for fixing and splits the upper fixture block of high-tension coil and low-voltage coil, described lower cushion block lower surface is provided with long slot bore, lower clamping piece coordinates fixing by long projection with long slot bore, the upper surface of lower cushion block is provided with and is used for fixing and splits the lower fixture block of high-tension coil and low-voltage coil, low-voltage coil is fixedly installed on the left side of fixture block and lower fixture block, high-tension coil is fixedly installed on the right side of fixture block and lower fixture block, multiple polyester films for insulating are provided with on the right side of low-voltage coil, polyester film upper end is plugged between low-voltage coil and upper fixture block, polyester film lower end is plugged between low-voltage coil and lower fixture block, high-tension coil upside and lower side are respectively arranged with the soft corner-ring contacted with lower fixture block with upper fixture block.
2. a kind of dry-type transformer according to claim 1, is characterized in that, described soft corner-ring is formed by stacking by multi-layered polyester film.
3. a kind of dry-type transformer according to claim 1, is characterized in that, described upper cushion block lower surface all arranges with lower cushion block upper surface the buffer plate contacted with high-tension coil or low-voltage coil.
4. a kind of dry-type transformer according to claim 1, is characterized in that, described upper clamping piece is fixed in nail pressing by the short clamping plate of upper and lower setting and nut.
5. a kind of dry-type transformer according to claim 1, is characterized in that, described soft corner-ring entirety is arranged in " L " type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023772.3U CN205211559U (en) | 2015-12-11 | 2015-12-11 | Dry -type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023772.3U CN205211559U (en) | 2015-12-11 | 2015-12-11 | Dry -type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211559U true CN205211559U (en) | 2016-05-04 |
Family
ID=55849259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521023772.3U Expired - Fee Related CN205211559U (en) | 2015-12-11 | 2015-12-11 | Dry -type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783091A (en) * | 2016-12-12 | 2017-05-31 | 江苏扬动电气有限公司 | A kind of soft corner-ring between the high-voltage coil and low-voltage coil for amorphous transformer |
-
2015
- 2015-12-11 CN CN201521023772.3U patent/CN205211559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783091A (en) * | 2016-12-12 | 2017-05-31 | 江苏扬动电气有限公司 | A kind of soft corner-ring between the high-voltage coil and low-voltage coil for amorphous transformer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20171211 |