CN103632818A - Dry type transformer - Google Patents
Dry type transformer Download PDFInfo
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- CN103632818A CN103632818A CN201310574077.5A CN201310574077A CN103632818A CN 103632818 A CN103632818 A CN 103632818A CN 201310574077 A CN201310574077 A CN 201310574077A CN 103632818 A CN103632818 A CN 103632818A
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- voltage coil
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- type transformer
- transformer
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Abstract
The invention discloses a dry type transformer, and belongs to the field of transformer equipment. A high-voltage coil and a low-voltage coil are coaxially arranged on a transformer iron core, the low-voltage coil is located inside the high-voltage coil, the high-voltage coil and the low-voltage coil are integrally arranged inside an epoxy resin insulating layer which is formed through vacuum pouring, and a cooling air duct is arranged on the portion, between the high-voltage coil and the low-voltage coil, of the epoxy resin insulating layer. Four insulating cushion blocks are arranged at the upper end of the high-voltage coil, the lower end of the high-voltage coil, the upper end of the low-voltage coil and the lower end of the low-voltage coil respectively. The dry type transformer is small in size and high in overload resistance capacity. Activated silica powder materials are added to the epoxy resin insulating layer, and therefore the impact prevention force and the heat resistance of epoxy resin are effectively enhanced, and the insulating performance of the transformer is improved. The insulating cushion blocks are made of BMC composite materials, the surface is bright and clean, and the heat resistance and the fire resistance are high. The contact area between the zigzag cooling air duct and air is large, the heat dissipation effect is good, and therefore the dynamic stability performance and the overload running capacity of the dry type transformer are improved.
Description
Technical field
The present invention relates to a kind of dry-type transformer.
Background technology
Along with the needs of socio-economic development, dry-type transformer is widely used in numerous occasions, and for example, airport, hospital or market etc. need the place of a large amount of power supplies.Yet the Insulation Problems of dry-type transformer is the special concern of researcher institute.In prior art, mostly adopt the method in the epoxy resins insulation layer that high-tension coil and low-voltage coil whole installation are formed in cast, solve Insulation Problems.The weak point of this method is: one, due to the difference of the coefficient of expansion, when temperature rises, epoxy resin itself and coil copper conductor can produce larger internal stress between the two, easily cause epoxy resin cracking, distortion, affect the dependability of transformer; They are two years old, the large shock-resistant damage ability of fragility of epoxy resin, heat resistance is also relatively poor, and when transformer overload is worked, generates heat larger, temperature is higher, the heat conductivility of epoxy resin itself is ungood, and therefore, the radiating effect of existing Cast Resin Dry-Type Transformer compares poor, therefore, limited the ability of transformer overload operation.
Summary of the invention
This problem to be solved is: a kind of good heat resistance, perfect heat-dissipating, volume is little, anti-overload ability is strong dry-type transformer are provided.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of dry-type transformer, comprises the iron core that a plurality of iron plates form; Described iron core coaxially arranges high-tension coil and low-voltage coil; Described low-voltage coil is positioned at high-tension coil inner side, in the epoxy resins insulation layer that described high-tension coil and low-voltage coil whole installation form in vacuum pouring; Described epoxy resins insulation layer adds active micro silicon powder material; In described epoxy resins insulation layer, between high-tension coil and low-voltage coil, be provided with cooling air channel; Described cooling air channel inner surface indention; The lower upper two ends of described high-tension coil and low-voltage coil arrange respectively four cross-over blocks.
Described cross-over block material is BMC composite material; Described BMC composite material is by GF(special yarn), UP(unsaturated-resin), low shrinkage additive, MD(filler) and various auxiliary agent form.
Beneficial effect
Volume of the present invention is little, anti-overload ability is strong.By by pollution-free, temperature tolerance good, the active micro silicon powder Material Addition of high insulation, low bulk, stable chemical performance is in epoxy resins insulation layer, impact resistance and the thermal endurance of epoxy resin have effectively been strengthened, reduce dilatancy, improved the insulation property of transformer; The cross-over block that adopts BMC composite material and make, any surface finish, good looking appearance, thermal endurance, anti-flammability are strong, and the mechanical performance of cross-over block is good; And the area that zigzag cooling air channel contacts with air is large, can make air take away more heats, the heated temperature of air is high simultaneously, pull out wind scorpion strong, the air-flow rate of climb is fast, good heat dissipation effect, thereby the ability of raising dry-type transformer dynamic stability and overlond running.
Accompanying drawing explanation
Fig. 1: be the structural representation of dry-type transformer of the present invention;
In figure: 1, iron core, 2, low-voltage coil, 3, high-tension coil, 4, epoxy resins insulation layer, 5, cross-over block, 6, cooling air channel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
A kind of dry-type transformer as shown in Figure 1, comprises the iron core 1 that a plurality of iron plates form; Described iron core 1 coaxially arranges high-tension coil 3 and low-voltage coil 2; Described low-voltage coil 2 is positioned at high-tension coil 3 inner sides, in the epoxy resins insulation layer 4 that high-tension coil 3 and low-voltage coil 2 whole installations form in vacuum pouring; 4 layers of interpolation active micro silicon powder material of described epoxy resins insulation; In described epoxy resins insulation layer 4, between high-tension coil 3 and low-voltage coil 2, be provided with cooling air channel 6; Described cooling air channel 6 inner surface indentions; The lower upper two ends of described high-tension coil 3 and low-voltage coil 2 arrange respectively four cross-over blocks 5.
Described cross-over block 5 materials are BMC composite material; Described BMC composite material is by GF(special yarn), UP(unsaturated-resin), low shrinkage additive, MD(filler) and various auxiliary agent form.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (2)
1. a dry-type transformer, comprises the iron core that a plurality of iron plates form, and it is characterized in that: described iron core coaxially arranges high-tension coil and low-voltage coil; Described low-voltage coil is positioned at high-tension coil inner side, in the epoxy resins insulation layer that described high-tension coil and low-voltage coil whole installation form in vacuum pouring; Described epoxy resins insulation layer adds active micro silicon powder material; In described epoxy resins insulation layer, between high-tension coil and low-voltage coil, be provided with cooling air channel; Described cooling air channel inner surface indention; The lower upper two ends of described high-tension coil and low-voltage coil arrange respectively four cross-over blocks.
2. a kind of dry-type transformer according to claim 1, is characterized in that: described cross-over block material is BMC composite material; Described BMC composite material is by GF(special yarn), UP(unsaturated-resin), low shrinkage additive, MD(filler) and various auxiliary agent form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574077.5A CN103632818A (en) | 2013-11-15 | 2013-11-15 | Dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574077.5A CN103632818A (en) | 2013-11-15 | 2013-11-15 | Dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103632818A true CN103632818A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310574077.5A Pending CN103632818A (en) | 2013-11-15 | 2013-11-15 | Dry type transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN103632818A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332287A (en) * | 2014-11-14 | 2015-02-04 | 重庆红岢电力绝缘配件有限责任公司 | Dry-type transformer insulation pad and fabrication method thereof |
| CN105810412A (en) * | 2016-05-23 | 2016-07-27 | 江苏中容科技有限公司 | Resin-cast dry type transformer air flue structure |
| CN108880285A (en) * | 2018-08-14 | 2018-11-23 | 江苏保丽洁环境科技股份有限公司 | Boosting rectification module in dry-type high-voltage transformer |
| CN109545519A (en) * | 2018-11-22 | 2019-03-29 | 济南西电特种变压器有限公司 | A kind of transformer for flexible DC transmission |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201224333Y (en) * | 2008-04-28 | 2009-04-22 | 北京华泰变压器有限公司 | Direct current traction power supply equipment for city track traffic |
| JP2009203262A (en) * | 2008-02-26 | 2009-09-10 | Panasonic Corp | Thermally conductive material, heat dissipation substrate using it, and manufacturing method of heat dissipation substrate |
| CN102360835A (en) * | 2011-08-03 | 2012-02-22 | 扬州华鼎电器有限公司 | Epoxy resin pouring dry type transformer |
| CN102982981A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Epoxy resin insulating transformer |
| CN202977084U (en) * | 2012-11-07 | 2013-06-05 | 天津市承刚科技发展有限公司 | Dry-type transformer |
-
2013
- 2013-11-15 CN CN201310574077.5A patent/CN103632818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009203262A (en) * | 2008-02-26 | 2009-09-10 | Panasonic Corp | Thermally conductive material, heat dissipation substrate using it, and manufacturing method of heat dissipation substrate |
| CN201224333Y (en) * | 2008-04-28 | 2009-04-22 | 北京华泰变压器有限公司 | Direct current traction power supply equipment for city track traffic |
| CN102360835A (en) * | 2011-08-03 | 2012-02-22 | 扬州华鼎电器有限公司 | Epoxy resin pouring dry type transformer |
| CN202977084U (en) * | 2012-11-07 | 2013-06-05 | 天津市承刚科技发展有限公司 | Dry-type transformer |
| CN102982981A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Epoxy resin insulating transformer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332287A (en) * | 2014-11-14 | 2015-02-04 | 重庆红岢电力绝缘配件有限责任公司 | Dry-type transformer insulation pad and fabrication method thereof |
| CN105810412A (en) * | 2016-05-23 | 2016-07-27 | 江苏中容科技有限公司 | Resin-cast dry type transformer air flue structure |
| CN105810412B (en) * | 2016-05-23 | 2017-06-23 | 江苏中容科技有限公司 | A kind of air channel structure of resin casting dry-type transformer |
| CN108880285A (en) * | 2018-08-14 | 2018-11-23 | 江苏保丽洁环境科技股份有限公司 | Boosting rectification module in dry-type high-voltage transformer |
| CN108880285B (en) * | 2018-08-14 | 2024-06-04 | 江苏保丽洁环境科技股份有限公司 | Boost rectifying module in dry-type high-voltage transformer |
| CN109545519A (en) * | 2018-11-22 | 2019-03-29 | 济南西电特种变压器有限公司 | A kind of transformer for flexible DC transmission |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |