CN201522924U - Three-dimensional reel iron core dry-type transformer insulation structure - Google Patents
Three-dimensional reel iron core dry-type transformer insulation structure Download PDFInfo
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- CN201522924U CN201522924U CN2009201856381U CN200920185638U CN201522924U CN 201522924 U CN201522924 U CN 201522924U CN 2009201856381 U CN2009201856381 U CN 2009201856381U CN 200920185638 U CN200920185638 U CN 200920185638U CN 201522924 U CN201522924 U CN 201522924U
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- insulation structure
- insulation
- type transformer
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Abstract
The utility model discloses a three-dimensional reel iron core dry-type transformer insulation structure. An insulation sleeve is fixed on a low-voltage coil or a high-voltage coil, wherein the insulation sleeve is formed by winding a thin insulation plate and pre-soaking insulation material. The insulation sleeve is supported and fixed by more than three support bars; the coil is pressed by more than three cushion blocks which are uniformly distributed on the circumference of the upper end face and the lower end face of each coil pair and are fixed by compression screws fixed on a transformer clamp. The reel iron core dye-type transformer solves the technical problem that an intact insulation sleeve can not sheathed between the high-voltage coils because the iron core is sealed, and the thickness and the cost of the insulation sleeve are reduced by 70%. The three-dimensional reel iron core dry-type transformer insulation structure has the advantages of simplified manufacture process of the insulation sleeve, insulation performance improvement, short production period, low manufacture cost, attractive appearance, and uniform force distribution on the coil by changing the distribution of soft/hard blocks on the circumference on the upper end and the lower end of the coils, thereby enhancing the product stability and the resistance to sudden short circuit.
Description
Technical field
The utility model relates to a kind of device body insulation structure of three-phase transformer, belongs to electrical equipment technical field.
Background technology
Traditional laminated type dry-type transformer is earlier the height coil to be enclosed within on the stem stem that iron core iron yoke can be opened together with insulating cylinder around intact back, and the iron core of 3 D stereo volume iron core (also comprising plane formula volume iron core) dry-type transformer seals, the height coil must adopt the directly coiling on iron core of special-purpose coil winding machine, and complete insulating cylinder can't be enclosed between coil and the location.Common way is: with two can half-and-half cutting respectively by mutual sheathing finished product 3-4mm heavy insulation tube of designing, be enclosed within on the iron core column again, two insulating cylinder seams staggered mutually 90 ° to increase creepage distance again.So not only complex process, insulation property are poor, the production cycle is long, cost is high but also not attractive in appearance.
The coil location of traditional dry-type transformer and to compress mainly be that cushion block by being distributed on the coil upper and lower end parts circumference is realized by the pressure screw on the folder, but make the coil discontinuity, poor stability, the anti-sudden short circuit ability of product.
The utility model content
The purpose of this utility model is: for the device body insulation of the most critical that solves 3 D stereo coil iron core dry-type transformer machine body structure and the problem of coil discontinuity, thereby simplify technology, improve insulation property, shorten production cycle length, reduce manufacturing cost height, pleasing aesthetic appearance, change the distribution of the cushion block on the coil upper and lower end parts circumference, make coil stressed evenly, improve product stability and anti-sudden short circuit ability.
The utility model is realized by following scheme: at fixed insulation tube on the low-voltage coil or on the high-tension coil, insulating cylinder is reeled and is formed by insulating thin, preimpregnation insulating material.
The utility model insulating cylinder is by the stay support fixation more than three.
Impregnating resin insulating paper or cloth that preimpregnation insulating material described in the utility model is the semi-solid preparation shape also can be the impregnating resin insulating tape of semi-solid preparation shape.
The utility model coil compresses by the cushion block more than three, and is distributed on the circumference of upper and lower end face of every pair of coil, is fixed by the pressure screw in compression that is fixed on the transformer folder.
Support on a pair of coil of the utility model on the same stem stem and to compress coil briquetting number evenly be four, and the fourth class all distributes, the formed line of vertical view with the composition surface of two single frame iron cores on the volume iron core stem stem is the Y-axis of plane right-angle coordinate, the direction vertical with Y-axis is X-axis, and the center of briquetting overlaps with four positive and negative axles of X, Y-axis respectively.
The utility model has solved coil iron core dry-type transformer because the iron core envelope is close, the insulating cylinder of complete not opening can't be enclosed within the technical barrier between high-tension coil, reduced insulating cylinder thickness 70%, reduced insulating cylinder cost 70%, and not only simplified insulating cylinder manufacturing process, improved insulation property, shortened the production cycle long, reduced manufacturing cost height, pleasing aesthetic appearance, change the distribution of the soft/lump on the coil upper and lower end parts circumference, make coil stressed evenly, improved product stability and anti-sudden short circuit ability.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is fixed on the utility model embodiment 2 structural representations on the high-tension coil for stay:
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing utility model is elaborated.
Embodiment 1: 3 D stereo volume dry type appendiron core transformer, stay is fixed on the low-voltage coil
Referring to Fig. 1, the insulator body structure of this implementation column is made of 3 D stereo volume iron core 1, high-tension coil 2, low-voltage coil 3, insulating thin 4, preimpregnation insulating material 5, stay 6, the cushion piece 7 that supports and compress coil, hard packing piece 8, pressure screw 9.With special-purpose spooling equipment coiling low-voltage coil, insulating thin 4, preimpregnation insulating material 5 are supported and fixed on by stay 6 form insulating cylinder or insulating thin 4 on the low-voltage coil again, preimpregnation insulating material 5 is fixed on by stay and forms insulating cylinder on the high-tension coil after the transformation iron core is finished.The former directly is supported on lapped insulation thin plate 4 on the low-voltage coil, preimpregnation insulating material 5 formation insulating cylinders by stay 6 after the low coil coiling.Coil is heating and curing after finishing and carries out the assembling of device body again, the briquetting fourth class that will support and compress coil respectively around four couple on a pair of coil on the same stem stem is divided equally on the circumference of the upper and lower end face of every pair of coil, press 9 to fasten by the pressure screw that is fixed on the transformer folder, assurance high-voltage coil and low-voltage coil, insulating cylinder and iron core column are assembled with core.Briquetting comprises cushion piece 7, hard packing piece 8, the support on a pair of coil on the same stem stem and cushion block (soft, the hard packing piece) fourth class that the compresses coil position that all distributes is: the formed line of vertical view with the composition surface of two single frame iron cores on the volume iron core stem stem is the Y-axis of plane right-angle coordinate, the direction vertical with Y-axis is X-axis, and the center of four pairs of soft/hard briquettings overlaps with four positive and negative axles of X, Y-axis respectively
Embodiment 2: the dry-type transformer of non-sealing (cake formula) coil
Referring to Fig. 2, present embodiment before the high-tension coil coiling on winding former lapped insulation thin plate 4, preimpregnation insulating material 5 form insulating cylinders, again by stay coiling high-tension coil, generally be used for the dry-type transformer of non-sealing (cake formula) coil.Preimpregnation material 5 can be the impregnating resin insulating paper or the cloth of the wide semi-solid preparation shape of insulating cylinder, also can be the impregnating resin insulating tape of the semi-solid preparation shape of certain width.Other structure is identical with embodiment 1.
The utility model is suitable for the oil-filled transformer of other type equally.The structure of insulating cylinder also is suitable for the plane formula reel iron core transformer.
Claims (6)
1. the device body insulation structure of a 3 D stereo reel iron core transformer is characterized in that: at fixed insulation tube on the low-voltage coil or on the high-tension coil, insulating cylinder is reeled and is formed by insulating thin, preimpregnation insulating material.
2. the device body insulation structure of 3 D stereo coil iron core dry-type transformer according to claim 1 is characterized in that: insulating cylinder is by plural stay support fixation.
3. the device body insulation structure of 3 D stereo reel iron core transformer according to claim 1 and 2 is characterized in that: the preimpregnation insulating material is the impregnating resin insulating paper or the cloth of semi-solid preparation shape, also can be the impregnating resin insulating tape of semi-solid preparation shape.
4. the device body insulation structure of 3 D stereo reel iron core transformer according to claim 1 and 2, it is characterized in that: coil compresses by the cushion block more than three, and be distributed on the circumference of upper and lower end face of every pair of coil, fix by the pressure screw in compression that is fixed on the transformer folder.
5. the device body insulation structure of 3 D stereo coil iron core dry-type transformer according to claim 2 is characterized in that: the support on a pair of coil on the same stem stem is distributed on the circumference of every pair of coil upper and lower end face.
6. according to the device body insulation structure of claim 2 or 5 described 3 D stereo reel iron core transformers, it is characterized in that: the support on a pair of coil on the same stem stem and compress the briquetting of coil, number on the upper and lower end face is four, the formed line of vertical view with the composition surface of two single frame iron cores on the volume iron core stem stem is the Y-axis of plane right-angle coordinate, the direction vertical with Y-axis is X-axis, and the center of briquetting overlaps with four positive and negative axles of X, Y-axis respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201856381U CN201522924U (en) | 2009-06-30 | 2009-06-30 | Three-dimensional reel iron core dry-type transformer insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201856381U CN201522924U (en) | 2009-06-30 | 2009-06-30 | Three-dimensional reel iron core dry-type transformer insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522924U true CN201522924U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201856381U Expired - Lifetime CN201522924U (en) | 2009-06-30 | 2009-06-30 | Three-dimensional reel iron core dry-type transformer insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630582B (en) * | 2009-06-30 | 2012-07-04 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN103730243A (en) * | 2012-10-14 | 2014-04-16 | 黄上立 | Shell type wound-iron-core three-phase three-dimensional transformer |
-
2009
- 2009-06-30 CN CN2009201856381U patent/CN201522924U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630582B (en) * | 2009-06-30 | 2012-07-04 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN103730243A (en) * | 2012-10-14 | 2014-04-16 | 黄上立 | Shell type wound-iron-core three-phase three-dimensional 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 |
Owner name: JIANGXI HAN'S POWER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGXI HAN'S POWER TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 330096 No. seven, No. 918, hi tech Zone, Nanchang hi tech Zone, Jiangxi Patentee after: JIANGXI HAN'S POWER TECHNOLOGY CORP., LTD. Address before: 330029 seven hi tech road 918, national hi tech Development Zone, Jiangxi, Nanchang Patentee before: JiangXi Han's Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |