CN202018873U - Drawstring support plate device of resin-insulation pouring dry-type transformer - Google Patents
Drawstring support plate device of resin-insulation pouring dry-type transformer Download PDFInfo
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- CN202018873U CN202018873U CN2011200786529U CN201120078652U CN202018873U CN 202018873 U CN202018873 U CN 202018873U CN 2011200786529 U CN2011200786529 U CN 2011200786529U CN 201120078652 U CN201120078652 U CN 201120078652U CN 202018873 U CN202018873 U CN 202018873U
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- drawstring
- support plate
- drawstring support
- iron core
- folder
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Abstract
The utility model discloses a drawstring support plate device of a resin-insulation pouring dry-type transformer, which relates to the field of manufacture of dry-type transformers and comprises clamp parts, an iron core, drawstring support plates and an insulation drawstring. The iron core is clamped between the clamp parts, the drawstring support plates are fixed on the clamp parts, the insulation drawstring is connected with the drawstring support plates via bolts, the drawstring support plates comprise a first drawstring support plate and a second drawstring support plate, the first drawstring support plate is fixed at one end, which is close to the iron core, of a side end of each clamp part, the second drawstring support plate is fixed at the other end, which is far away from the iron core, of the side end of each clamp part, an included angle between each drawstring support plate and the side end surface of each clamp part ranges from 45 degrees to 90 degrees, the upper ends of the drawstring support plates are arc-shaped, and the support plates are in welding connection with the side ends of the clamp parts. The actual distance between each drawstring support plate and a coil can be enlarged, pressure resistance strength between each clamp part and the coil is improved, the drawstring can be perpendicular to the drawstring support plates, deformation of the drawstring can be reduced to the utmost extent, and clamping strength of the clamp parts is guaranteed.
Description
Technical field:
The utility model relates to transformer manufacture technology, and a kind of drawstring that relates in particular to assembling resin insulation pouring dry-type transformer iron core props up panel assembly.
Background technology:
The insulation resin casting dry type transformer of domestic production at present, particularly a lot of enterprises are in order to reduce material cost, most employings cross section is oblong iron core and loop construction, the iron core of this form, often main all narrower than the main of circular iron core, change thick, in order to guarantee chuck strength, the bigger often again channel-section steel that folder adopts so just causes folder and annex smaller to the insulation distance of transformer coil end; Equally in order to guarantee chuck strength, guarantee that again folder can be not crooked, the punching on iron core and folder of a lot of enterprises is promptly adopted and is drawn screw rod punching structure to fix, though this method has solved the problem that clamps, but owing to need punching on the iron core silicon steel sheet, the magnetic line of force has not only increased noise bending, distort through here the time, and no-load performance also can variation, simultaneously, punching on the iron core silicon steel sheet also can increase production cost.
Another method is exactly to adopt the method for drawstring to increase clamping force, and drawstring is by being welded on drawstring support plate on the folder as supporting.A lot of enterprises are rectangular drawstring support plate on vertical welding on the folder directly, and the drawstring support plate is the nearest metallic object of off-line circle.In the transformer manufacture test, industrial frequency withstand voltage is a very important pilot project, the safe operation of transformer after being directly connected to.And the height that distance between electrified body and the non-live metal body and electrode shape are directly determining electric strength, distance is far away more, and electrode is smooth more, and the discharge voltage between them is just high more, and just electric strength is high more.
In order to overcome the above problems, a lot of enterprises take to increase the way of widening core dimensions, and its shortcoming has increased cost exactly, and no-load loss has also increased a lot, and these have all reduced Enterprises'Competitiveness undoubtedly, and the increase of loss does not meet the energy saving policy of country yet.
The utility model content:
In order to address the above problem, the utility model provide a kind of simple in structure, safe and reliable, reduce cost, guarantee that the drawstring of product quality props up panel assembly, be used for substituting the square support plate that uses in the present clamping device.
The technical scheme that adopts of the present utility model is: insulation resin casting dry type transformer drawstring props up panel assembly, comprise folder, be clamped in iron core between the folder, be fixed on the folder the drawstring support plate and with the bolted insulation drawstring of drawstring support plate, described drawstring support plate comprises the first drawstring support plate and the second drawstring support plate, the described first drawstring support plate is fixed on the end of folder side near iron core, the second drawstring support plate is fixed on the end of folder side away from iron core, and described drawstring support plate and folder side end face angle are 45 °～90 °.
The upper end of described drawstring support plate is circular-arc, and support plate and folder side are welded to connect.
The described first drawstring support plate is fixed on the two stem centers of folder side near iron core, and the described second drawstring support plate is fixed on the two stem centers of folder side away from iron core.
Described drawstring support plate and folder side end face angle are 70 °.
Be lined with the Silicon-On-Insulator rubber cushion between described drawstring and the iron core.
The beneficial effects of the utility model are: the upper end of drawstring support plate is circular-arc, is welded to connect with the folder side, and no corner angle and wedge angle can improve the compressive resistance between folder and the coil; Support plate and folder side end face be at 45～90 ° angle, and the first, can increase the actual range of drawstring support plate and coil; The second, can make drawstring become plumbness with the drawstring support plate, reduce the distortion of drawstring to greatest extent, guarantee the chuck strength of folder; The described second drawstring support plate is adjacent with coil, and the second drawstring support plate is fixed on the end of folder side away from iron core, also can strengthen drawstring support plate outer rim to the insulation distance between the coil, improves compressive resistance.
Description of drawings:
Fig. 1 is mounting structure state diagram of the present utility model.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, insulation resin casting dry type transformer drawstring props up panel assembly, comprise folder 3, be clamped in iron core 6 between the folder 3, be fixed on drawstring support plate on the folder 3, with bolted insulation drawstring 1 of drawstring support plate and coil 7, described drawstring support plate comprises the first drawstring support plate 2 and the second drawstring support plate 4, the described first drawstring support plate 2 is fixed on the end of folder 3 sides near iron core 6, the second drawstring support plate 4 is fixed on the end of folder 3 sides away from iron core 6, and described drawstring support plate and folder 3 side end face angles are 45 °～90 °.Described coil 7 is near the second drawstring support plate 4, and the upper end of described drawstring support plate is circular-arc, is welded to connect with the folder side, and no corner angle and wedge angle can improve the compressive resistance between folder 3 and the coil 7; The described first drawstring support plate 2 is fixed on the iron core two stem centers of folder 3 sides near iron core 6, the described second drawstring support plate 4 is fixed on the iron core two stem centers of folder 3 sides away from iron core 6, drawstring support plate and folder 3 side end face angles are 70 °, the first, can increase the actual range of drawstring support plate and coil 7; The second, can make drawstring become plumbness with the drawstring support plate, reduce the distortion of drawstring to greatest extent, guarantee the chuck strength of folder 3.Be lined with Silicon-On-Insulator rubber cushion 5 between described drawstring and the iron core 6.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. insulation resin casting dry type transformer drawstring props up panel assembly, comprise folder, be clamped in iron core between the folder, be fixed on the folder the drawstring support plate and with the bolted insulation drawstring of drawstring support plate, it is characterized in that: described drawstring support plate comprises the first drawstring support plate and the second drawstring support plate, the described first drawstring support plate is fixed on the end of folder side near iron core, the second drawstring support plate is fixed on the end of folder side away from iron core, and described drawstring support plate and folder side end face angle are 45 °～90 °.
2. drawstring according to claim 1 props up panel assembly, it is characterized in that: the upper end of described drawstring support plate is circular-arc, and support plate and folder side are welded to connect.
3. drawstring according to claim 1 props up panel assembly, it is characterized in that: the described first drawstring support plate is fixed on the two stem centers of folder side near iron core, and the described second drawstring support plate is fixed on the two stem centers of folder side away from iron core.
4. drawstring according to claim 1 and 2 props up panel assembly, it is characterized in that: described drawstring support plate and folder side end face angle are 70 °.
5. drawstring according to claim 1 props up panel assembly, it is characterized in that: be lined with the Silicon-On-Insulator rubber cushion between described drawstring and the iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200786529U CN202018873U (en) | 2011-03-23 | 2011-03-23 | Drawstring support plate device of resin-insulation pouring dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200786529U CN202018873U (en) | 2011-03-23 | 2011-03-23 | Drawstring support plate device of resin-insulation pouring dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018873U true CN202018873U (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200786529U Expired - Fee Related CN202018873U (en) | 2011-03-23 | 2011-03-23 | Drawstring support plate device of resin-insulation pouring dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018873U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969133A (en) * | 2012-11-23 | 2013-03-13 | 中国西电电气股份有限公司 | Magnetic shunt compaction device of tightening belt structure |
| CN104934197A (en) * | 2015-06-26 | 2015-09-23 | 镇江天力变压器有限公司 | Clamping and noise reducing structure for epoxy cast dry-type transformer core |
| CN106847479A (en) * | 2016-12-13 | 2017-06-13 | 国家电网公司 | A kind of main transformer device compressing structure and its installation method |
-
2011
- 2011-03-23 CN CN2011200786529U patent/CN202018873U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969133A (en) * | 2012-11-23 | 2013-03-13 | 中国西电电气股份有限公司 | Magnetic shunt compaction device of tightening belt structure |
| CN102969133B (en) * | 2012-11-23 | 2015-04-22 | 中国西电电气股份有限公司 | Magnetic shunt compaction device of tightening belt structure |
| CN104934197A (en) * | 2015-06-26 | 2015-09-23 | 镇江天力变压器有限公司 | Clamping and noise reducing structure for epoxy cast dry-type transformer core |
| CN106847479A (en) * | 2016-12-13 | 2017-06-13 | 国家电网公司 | A kind of main transformer device compressing structure and its installation method |
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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 |
Granted publication date: 20111026 Termination date: 20160323 |
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| CF01 | Termination of patent right due to non-payment of annual fee |