CN105405614A - Oil-immersed amorphous alloy core transformer - Google Patents
Oil-immersed amorphous alloy core transformer Download PDFInfo
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- CN105405614A CN105405614A CN201510863876.3A CN201510863876A CN105405614A CN 105405614 A CN105405614 A CN 105405614A CN 201510863876 A CN201510863876 A CN 201510863876A CN 105405614 A CN105405614 A CN 105405614A
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Abstract
The invention discloses an oil-immersed amorphous alloy core transformer, which comprises three coils, eight iron cores and a cover board, wherein insulating cylinders are arranged on the inner walls of the three coils; the top view of the three insulating sleeves is in a shape like a Chinese character 'tian'; the coils tightly wind the outer side surfaces of the insulating sleeves; a pressing strip is arranged at the middle part of the bottom surface of the cover board; the three coils are sequentially arranged; a gap is reserved between the adjacent coils; the gaps are reserved between the iron cores and the insulating sleeves; the gaps are also reserved between the adjacent iron cores; and the pressing strip of the cover board passes through the gap between the front and rear two rows of iron cores and is pressed at the middle parts of the three coils. The insulating cylinders are high in strength and do not deform; and the unexpected technical effect of reducing the heights of the iron cores is brought.
Description
Technical field
The present invention relates to core structure design and the coil envelope pressure technology of oil immersed type transformer with amorphous alloy made iron core, be specifically related to a kind of oil immersed type transformer with amorphous alloy made iron core.
Background technology
Current oil immersed type transformer with amorphous alloy made iron core, as shown in figures 1 and 3, the vertical view of insulating cylinder b is square shape, and four iron core c are through an insulating cylinder, and four exist gap between iron core and insulating cylinder.When transformer normally works, coil a deformable squeeze insulating cylinder, insulating cylinder produces micro-strain, does not affect iron core.When transformer generation single-phase short circuit, coil shrinks extruding insulation cylinder, and insulating cylinder distortion is larger, as shown in Figure 2, insulating cylinder surrounding central point is the weakest for its stressing conditions, when deflection exceedes the space between insulating cylinder and iron core, extruding iron core, iron core is out of shape, and the zero load of transformer sharply increases.
In order to solve the problems of the technologies described above, generally the enlarged in thickness of insulating cylinder, but the increase of insulating cylinder thickness, cause the internal diameter of coil to increase, the distance between coil increases, and the internal diameter of iron core increases, therefore, cause transformer material to increase, the series of problems such as volume increase.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of oil immersed type transformer with amorphous alloy made iron core, the intensity of insulating cylinder is large, indeformable, and brings the unforeseeable technique effect reducing iron core height.
The scheme that the present invention solves the problems of the technologies described above is as follows:
Oil immersed type transformer with amorphous alloy made iron core, comprises 3 coils, 8 iron cores and cover plate,
The inwall of described 3 coils is provided with insulating cylinder, and the vertical view of 3 insulating cylinders is matrix pattern, and coil is closely wound on the lateral surface of insulating cylinder;
A compression bar is provided with in the middle part of the bottom surface of described cover plate;
Described 3 coils are arranged in order, and adjacent coil leaves gap;
Described first iron core winding is through the left back through hole of the first insulating cylinder, second iron core winding is through the left front through hole of the first insulating cylinder, 3rd iron core winding is through the right back through hole of the first insulating cylinder and the left back through hole of the second insulating cylinder, 4th iron core winding is through the right front through hole of the first insulating cylinder and the left front through hole of the second insulating cylinder, 5th iron core winding is through the right back through hole of the second insulating cylinder and the left back through hole of the 3rd insulating cylinder, 6th iron core winding is through the right front through hole of the second insulating cylinder and the left front through hole of the 3rd insulating cylinder, 7th iron core winding is through the right back through hole of the 3rd insulating cylinder, 8th iron core winding is through the right front through hole of the 3rd insulating cylinder,
All leave gap between described iron core and insulating cylinder, between adjacent iron cores, also leave gap;
The compression bar of described cover plate is pressed in the middle part of 3 coils through the gap of front two rows iron core.
The present invention has following advantage relative to prior art:
1, the vertical view of insulating cylinder is matrix pattern, and add intensity, insulating cylinder is indeformable, does not affect iron core, specifically sees embodiment part labor by reference to the accompanying drawings.
2, the change of insulating barrel structure, brings the unforeseeable technique effect reducing iron core height, specifically sees embodiment part labor by reference to the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the vertical view of prior art coil.
Fig. 2 be prior art insulating cylinder stressed after vertical view.
Fig. 3 is the front view of prior art transformer.
Fig. 4 is the vertical view of prior art transformer.
Fig. 5 is the vertical view of prior art cover plate.
Fig. 6 is the left view of prior art cover plate and pressing plate coil pressing.
Fig. 7 is the vertical view of coil of the present invention.
Fig. 8 be insulating cylinder of the present invention stressed after vertical view.
Fig. 9 is the front view of transformer of the present invention.
Figure 10 is the vertical view of transformer of the present invention.
Figure 11 is the A-A cutaway view of Fig. 9.
Figure 12 is the vertical view of cover plate of the present invention.
Figure 13 is the left view of cover plate coil pressing of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Oil immersed type transformer with amorphous alloy made iron core as shown in Fig. 7-Figure 13, comprises 3 coils, 1,8 iron cores 2 and cover plate 3,
The inwall of 3 coils 1 is provided with insulating cylinder 4, and the vertical view of 3 insulating cylinders 4 is matrix pattern, and coil 1 is closely wound on the lateral surface of insulating cylinder 4;
A compression bar 5 is provided with in the middle part of the bottom surface of cover plate 3;
3 coils 1 are arranged in order, and adjacent coil 1 leaves gap;
First iron core 2-1 coiling is through the left back through hole of the first insulating cylinder 4-1, second iron core 2-2 coiling is through the left front through hole of the first insulating cylinder 4-1, 3rd iron core 2-3 coiling is through the right back through hole of the first insulating cylinder 4-1 and the left back through hole of the second insulating cylinder 4-2, 4th iron core 2-4 coiling is through the right front through hole of the first insulating cylinder 4-1 and the left front through hole of the second insulating cylinder 4-2, 5th iron core 2-5 coiling is through the right back through hole of the second insulating cylinder 4-2 and the left back through hole of the 3rd insulating cylinder 4-3, 6th iron core 2-6 coiling is through the right front through hole of the second insulating cylinder 4-2 and the left front through hole of the 3rd insulating cylinder 4-3, 7th iron core 2-7 coiling is through the right back through hole of the 3rd insulating cylinder 4-3, 8th iron core 2-8 coiling is through the right front through hole of the 3rd insulating cylinder 4-3,
All leave gap between iron core 2 and insulating cylinder 4, between adjacent iron cores 2, also leave gap;
The compression bar 5 of cover plate 3 is pressed in the middle part of 3 coils 1 through the gap of front two rows iron core 2.
one, the insulating cylinder of prior art and insulating cylinder of the present invention, contrast as follows:
1, as shown in figures 1 and 3, when transformer normally works, coil a deformable squeeze insulating cylinder b, insulating cylinder b produces micro-strain, does not affect iron core c.When transformer generation single-phase short circuit, coil a shrinks extruding insulation cylinder b, insulating cylinder b is out of shape larger, its stressing conditions as shown in Figure 2, insulating cylinder b surrounding central point is the weakest, when deflection exceedes the space between insulating cylinder b and iron core c, and extruding iron core c, iron core c is out of shape, and the zero load of transformer sharply increases.
2, as shown in figures 7 and 9, the present invention adds " ten " word fagging in the centre of insulating cylinder 4, the vertical view of insulating cylinder 4 is matrix pattern, major part force localization is on middle cross fagging, resistance to bending is originally changed into crush resistance, the crush resistance of same material is far longer than resistance to bending, and its stressing conditions as shown in Figure 8.When transformer generation single-phase short circuit, insulating cylinder 4 can bear the extruding of coil 1 substantially, can not extrude iron core 2, ensure that the anti-short circuit capability of transformer.
Through overtesting, the non-deformability of insulating cylinder of the present invention, is equivalent to the non-deformability of 3.5 times of thickness of existing insulating cylinder.
two, the change of insulating barrel structure of the present invention, brings " simplification pressing plate " and " reducing iron core height "
two unforeseeable technique effects:
(1), " simplification pressing plate "
1, as shown in Fig. 3,4,5,6, all very close to each other between existing transformer 8 iron cores, cover plate e can only be compressed the both sides of coil and middle part by pressing plate d, were it not for pressing plate d, then cannot compress the middle part of coil a.
2, as shown in Fig. 9,10,11,12,13, insulating cylinder 4 center is decussate texture, all gap is left between iron core 2 and insulating cylinder 4, also gap is left between adjacent iron cores 2, the compression bar 5 of cover plate 3 can be pressed in the middle part of 3 coils 1 through the gap of front two rows iron core 2, the two ends of iron core 2 are directly compressed by cover plate 3, simplify compressing structure, without the need to arranging pressing plate.
(2), " iron core height is reduced "
1, as shown in Figure 3, owing to have employed pressing plate d, the height of iron core c must increase, and for pressing plate d reserves through the space with placement, because this increasing the material of iron core c, adds the cost of transformer, volume and weight.
2, as shown in Figure 9, because the present invention is without the need to arranging pressing plate, the height of iron core 2 can reduce, and therefore reduces the material of iron core 2, reduces the cost of transformer, reduces volume and weight.
Above-mentioned is the present invention's preferably execution mode; but embodiments of the present invention are not by the restriction of foregoing; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (1)
1. oil immersed type transformer with amorphous alloy made iron core, is characterized in that: comprise 3 coils, 8 iron cores and cover plate,
The inwall of described 3 coils is provided with insulating cylinder, and the vertical view of 3 insulating cylinders is matrix pattern, and coil is closely wound on the lateral surface of insulating cylinder;
A compression bar is provided with in the middle part of the bottom surface of described cover plate;
Described 3 coils are arranged in order, and adjacent coil leaves gap;
Described first iron core winding is through the left back through hole of the first insulating cylinder, second iron core winding is through the left front through hole of the first insulating cylinder, 3rd iron core winding is through the right back through hole of the first insulating cylinder and the left back through hole of the second insulating cylinder, 4th iron core winding is through the right front through hole of the first insulating cylinder and the left front through hole of the second insulating cylinder, 5th iron core winding is through the right back through hole of the second insulating cylinder and the left back through hole of the 3rd insulating cylinder, 6th iron core winding is through the right front through hole of the second insulating cylinder and the left front through hole of the 3rd insulating cylinder, 7th iron core winding is through the right back through hole of the 3rd insulating cylinder, 8th iron core winding is through the right front through hole of the 3rd insulating cylinder,
All leave gap between described iron core and insulating cylinder, between adjacent iron cores, also leave gap;
The compression bar of described cover plate is pressed in the middle part of 3 coils through the gap of front two rows iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510863876.3A CN105405614A (en) | 2015-11-30 | 2015-11-30 | Oil-immersed amorphous alloy core transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510863876.3A CN105405614A (en) | 2015-11-30 | 2015-11-30 | Oil-immersed amorphous alloy core transformer |
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| Publication Number | Publication Date |
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| CN105405614A true CN105405614A (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510863876.3A Pending CN105405614A (en) | 2015-11-30 | 2015-11-30 | Oil-immersed amorphous alloy core transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957697A (en) * | 2016-07-27 | 2016-09-21 | 吴江变压器有限公司 | Amorphous ally transformer winding structure with high short circuit resistance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11345725A (en) * | 1998-06-02 | 1999-12-14 | Hitachi Ltd | Amorphous iron-core transformer |
| CN102664091A (en) * | 2012-05-31 | 2012-09-12 | 上海置信电气非晶有限公司 | Framework structure of amorphous alloy transformer |
| CN202632979U (en) * | 2012-05-23 | 2012-12-26 | 江苏宏源电气有限责任公司 | Axially-compressed amorphous alloy oil-immersed transformer |
| CN103093942A (en) * | 2011-11-01 | 2013-05-08 | 株式会社日立产机系统 | Amorphous core transformer |
| CN204760204U (en) * | 2015-05-11 | 2015-11-11 | 上海飞晶电气股份有限公司 | Metallic glass transformer ware body structure with short circuit carrying capacity |
| CN205282255U (en) * | 2015-11-30 | 2016-06-01 | 广州广高高压电器有限公司 | Oily formula metallic glass iron core transformer |
-
2015
- 2015-11-30 CN CN201510863876.3A patent/CN105405614A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11345725A (en) * | 1998-06-02 | 1999-12-14 | Hitachi Ltd | Amorphous iron-core transformer |
| CN103093942A (en) * | 2011-11-01 | 2013-05-08 | 株式会社日立产机系统 | Amorphous core transformer |
| CN202632979U (en) * | 2012-05-23 | 2012-12-26 | 江苏宏源电气有限责任公司 | Axially-compressed amorphous alloy oil-immersed transformer |
| CN102664091A (en) * | 2012-05-31 | 2012-09-12 | 上海置信电气非晶有限公司 | Framework structure of amorphous alloy transformer |
| CN204760204U (en) * | 2015-05-11 | 2015-11-11 | 上海飞晶电气股份有限公司 | Metallic glass transformer ware body structure with short circuit carrying capacity |
| CN205282255U (en) * | 2015-11-30 | 2016-06-01 | 广州广高高压电器有限公司 | Oily formula metallic glass iron core transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957697A (en) * | 2016-07-27 | 2016-09-21 | 吴江变压器有限公司 | Amorphous ally transformer winding structure with high short circuit resistance |
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Application publication date: 20160316 |