CN109148121A - Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting - Google Patents
Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting Download PDFInfo
- Publication number
- CN109148121A CN109148121A CN201811250426.7A CN201811250426A CN109148121A CN 109148121 A CN109148121 A CN 109148121A CN 201811250426 A CN201811250426 A CN 201811250426A CN 109148121 A CN109148121 A CN 109148121A
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- Prior art keywords
- coil
- phase
- phase coil
- iron core
- iron
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Abstract
The invention discloses the fastening structure for solving the problems, such as amorphous alloy transformer resistance to shorting, including horizontally disposed three-phase coil, tri-phase iron core, iron core has two layers；The exterior portion of A phase coil, the exterior portion of C phase coil are equipped with iron pressing plate, and iron pressing plate is arranged between two layers of iron core；A phase coil, B phase coil, C phase coil inner-diameter portion be equipped with epoxy plate, epoxy plate is arranged between two layers of iron core；The outside of iron core is equipped with side folder, and side folder is equipped with nail pressing nut, the nail pressing for resisting iron pressing plate is equipped in nail pressing nut；Every phase high-tension coil and low-voltage coil are tightened by binding strap.The present invention is pressed 3 phase coils at an entirety by iron pressing plate, intensifier coil width to outer diameter constraint, the epoxy plate stretching internal coil diameter that internal coil diameter position is placed, intensifier coil width to internal diameter constraint, every phase high-tension coil and low-voltage coil are tightened with binding strap, guarantee coil axial constraint power, while intensifier coil width is to the restraining force of internal-and external diameter.
Description
Technical field
The present invention relates to field transformer, specifically a kind of fastening knot for solving the problems, such as amorphous alloy transformer resistance to shorting
Structure.
Background technique
SH15 type amorphous alloy transformer is with compared with capacity S11 type distribution transforming, and no-load loss has dropped 60%~70%, section
Energy effect is very significant, meets the energy-saving policy of country.
Amorphous alloy transformer coil is rectangle, and iron core is unable to stress, these structure and material features make amorphous alloy
Transformer coil fastens difficulty in structure, therefore short-circuit ability to bear is very poor, and energy is born in amorphous alloy transformer short circuit in industry
It is extremely low that power tests percent of pass, such as SBH15-400/10 transformer, according to test unit's incomplete statistics, even across special
The product of design and processing, test percent of pass are only about 25%.
In order to enhance the anti-short circuit capability of amorphous product, prior art has:
Scheme 1:1, coil paint-dipping improve the mechanical strength of coil；2, the hard iron core of amorphous iron core japanning, so that iron core
Top and side have certain rigidity, have certain restraining force on top and side to coil.
Scheme 2:1, three-phase coil are beaten together with strap, cushioning 10mm thickness epoxy plate on the outside of A, C phase, with strap with
Coil is packaged with, such intensifier coil width to axial restraining force.
1 disadvantage of scheme: 1, the mechanical strength of coil is still insufficient, and anti-short circuit capability is still poor, such as SBH15-
400/10 transformer, test percent of pass are lower than 25%；2, coil paint-dipping --- (1) increases the cost of insulated paint, (2) paint-dipping process
Complexity, the used time is more, production efficiency bottom, and insulated paint used in (3) has certain harm to producers' health due to containing toluene；
3, amorphous iron core japanning hard iron core --- the processing power consumption of (1) hard iron core is big, processing time consuming low efficiency, so iron core at
This height and supply of material is slow, is not suitable for producing in batches；(2) hard iron core retainer plate dress is difficult, production efficiency bottom.
2 disadvantage of scheme: 1, three-phase coil is beaten together with strap, excessive to width due to being packaged width, to coil axial direction
Restraining force is with regard to insufficient, and high-tension coil is easy axial deformation without being able to satisfy resistance to shorting after short circuit；2, strap is relied only on to line
The fastening of circle, is limited by the intensity of strap, strap fracture is often occurred when short-circuit test and winding deformation, is not able to satisfy anti-
Short circuit；3, cushioning 10mm thickness epoxy plate on the outside of A, C phase increases iron core window width size 10mm, increases cost, increases unloaded damage
Consumption.
Summary of the invention
For the defect for solving the above-mentioned prior art, the present invention provides a kind of amorphous alloy transformer resistance to shorting that solves the problems, such as
Fastening structure, the present invention are pressed 3 phase coils at an entirety by iron pressing plate, effective intensifier coil width to outer diameter constraint,
Epoxy plate is placed at internal coil diameter position between two layers of iron core, in the middle part of stretching internal coil diameter, intensifier coil width to internal diameter constraint；Often
Phase high-tension coil and low-voltage coil are tightened with binding strap, ensure that coil axial constraint power, while it is inside to enhance coil width again
The restraining force of outer diameter.
To realize the above-mentioned technical purpose, the invention adopts the following technical scheme: solving amorphous alloy transformer resistance to shorting
The fastening structure of problem, including horizontally disposed three-phase coil and tri-phase iron core, the coil include A phase coil, B phase line
Circle, C phase coil, wherein A phase coil it is adjacent with B phase coil abut, B phase coil and C phase coil is adjacent abuts；The A phase coil,
B phase coil, C phase coil respectively include the low-voltage coil positioned at the high-tension coil in outside and positioned inside, and the iron core is equipped with
Two layers；The exterior portion of the A phase coil, the exterior portion of C phase coil are equipped with iron pressing plate, and the iron pressing plate is arranged at two layers
Between iron core；
The A phase coil, B phase coil, C phase coil inner-diameter portion be equipped with epoxy plate, the epoxy plate is arranged two
Between layer iron core；
The outside of the iron core is equipped with side folder, and the side folder is equipped with nail pressing nut, is equipped in the nail pressing nut
For resisting the nail pressing of iron pressing plate；
High-tension coil described in every phase and low-voltage coil are tightened by binding strap.
By using above-mentioned technical proposal, iron core of the present invention has 2 layers, between two layers of iron core, internal coil diameter position place ring
Oxygen plate, in the middle part of stretching internal coil diameter, intensifier coil width to internal diameter constraint.The exterior portion of A phase coil, C phase coil
Exterior portion is equipped with iron pressing plate, and iron pressing plate is arranged between two layers of iron core, and iron pressing plate separates two layers of iron core.On the folder of side
Iron pressing plate is pressed with nail pressing, iron pressing plate is clipped between two layers of iron core, and the outer path length of A phase coil, C phase coil is pressed by iron pressing plate
Side, by the press of 3 phase coils at an entirety, effective intensifier coil width to outer diameter constraint.The high-tension coil of every phase coil and low
Crimping circle is tightened with binding strap, and ensure that coil axially has enough restraining forces；And coil width is enhanced simultaneously to internal-and external diameter
Restraining force.
Preferably, the iron pressing plate is wrapped up with tectorial paper and being insulated between iron core.
Preferably, the binding strap uses insulband.
In conclusion the present invention achieves following technical effect:
1, iron pressing plate is pressed with nail pressing on the folder of side, the outer diameter long side of A, C phase coil is pressed by iron pressing plate, by 3 phase lines
Circle press at an entirety, effective intensifier coil width to outer diameter restraining force；
2, the present invention uses 2 layers of iron core, and internal coil diameter places epoxy plate between 2 layers of iron core, plays stretching internal coil diameter
Effect；
3, the long side of every phase high-voltage coil and low-voltage coil of the invention is tightened with binding strap, ensure that coil axially and have it is enough about
Beam force, and restraining force of the coil width to internal-and external diameter is enhanced simultaneously；
4, invention increases the mechanical strengths of amorphous alloy transformer anti-short circuit capability.
Detailed description of the invention
Fig. 1 is main view of the present invention；
Fig. 2 is top view of the present invention；
Fig. 3 is every phase coil schematic diagram；
Fig. 4 is nail pressing and iron pressing plate relation schematic diagram；
In figure, 1, side folder, 2, nail pressing nut, 3, nail pressing, 4, iron pressing plate, 5, iron core, 6, coil, 61, A phase coil, 62,
B phase coil, 63, C phase coil, 7, epoxy plate, 8, high-tension coil, 9, low-voltage coil.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Embodiment:
After transformer short-circuit, coil will lead to transformation if fruit product anti-short circuit capability is insufficient by huge electric power
Device performance data is exceeded or directly burns.The electric power that coil is subject to can be decomposed into axial force and width to power, wherein high-voltage line
For circle by outside width to power, low-voltage coil receives inside width to power.
As shown in Figure 1 and Figure 2, the fastening structure of amorphous alloy transformer resistance to shorting, including horizontally disposed three are solved the problems, such as
Phase coil 6 and tri-phase iron core 5, coil 6 include A phase coil 61, B phase coil 62, C phase coil 63, wherein A phase coil 61 and B
Phase coil 62 is adjacent, which to be abutted, B phase coil 62 is adjacent with C phase coil 63 abuts；A phase coil 61, B phase coil 62, C phase coil 63 divide
It does not include the low-voltage coil 9 positioned at the high-tension coil 8 in outside and positioned inside, iron core 5 is equipped with two layers；Outside A phase coil 61
Side section, C phase coil 63 exterior portion be equipped with iron pressing plate 4, iron pressing plate 4 is arranged between two layers of iron core 5；
As shown in Fig. 2, the inner-diameter portion of A phase coil 61, B phase coil 62, C phase coil 63 is equipped with epoxy plate 7, epoxy plate
7 are arranged between two layers of iron core 5；
As shown in figure 4, the outside of iron core 5 is equipped with side folder 1, side folder 1 is equipped with nail pressing nut 2, sets in nail pressing nut 2
There is the nail pressing 3 for resisting iron pressing plate 4；
As shown in figure 3, every phase high-tension coil 8 and low-voltage coil 9 are tightened by binding strap 10.
Iron core 5 of the present invention has 2 layers, between two layers of iron core 5, internal coil diameter position place epoxy plate 7, in stretching coil
In the middle part of diameter, intensifier coil width to internal diameter constraint.The exterior portion of A phase coil 61, the exterior portion of C phase coil 63 are equipped with iron
Pressing plate 4, iron pressing plate 4 are arranged between two layers of iron core 5, and iron pressing plate 4 separates two layers of iron core 5.Nail pressing nut is set on side folder 1
2, nail pressing nut 2 is screwed in nail pressing 3 when assembly, presses iron pressing plate 4 with nail pressing 3, iron pressing plate 4 is clipped between two layers of iron core 5, passes through
Iron pressing plate 4 presses the outer diameter long side of A phase coil 61, C phase coil 63, and 3 phase coils are pressed into an entirety, effective intensifier coil
Width to outer diameter constraint.The high-tension coil 8 and low-voltage coil 9 of every phase coil are tightened with binding strap, ensure that coil axially has
Enough restraining forces；And restraining force of the coil width to internal-and external diameter is enhanced simultaneously.
Iron pressing plate 4 is wrapped up with tectorial paper to insulate between iron core 5.
The long side of every phase high and low pressure coil is tightened with binding strap 10, and binding strap 10 uses insulband in the present embodiment
PET。
The present invention presses iron pressing plate 4 with nail pressing 3 on side folder 1, and the outer path length of A, C phase coil is pressed by iron pressing plate 4
Side, by the press of 3 phase coils at an entirety, effective intensifier coil width to outer diameter restraining force；The present invention uses 2 layers of iron core 5,2
Internal coil diameter places epoxy plate 7 between layer iron core 5, plays the role of stretching internal coil diameter；Every phase high-voltage coil and low-voltage coil of the invention
Long side tightened with binding strap, ensure that coil axially has enough restraining forces, and enhances coil width simultaneously to internal-and external diameter
Restraining force；Invention increases the mechanical strengths of amorphous alloy transformer anti-short circuit capability.
This invention ensures that coil is axial to all have enough restraining forces to internal-and external diameter with width, amorphous alloy variable pressure is met
The mechanical strength of device anti-short circuit capability, and do not increase material utilization amount, control product cost.
The above is only not to make limit in any form to the present invention to better embodiment of the invention
System, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (3)
1. solving the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting, including horizontally disposed three-phase coil (6) and three
Phase iron core (5), the coil (6) include A phase coil (61), B phase coil (62), C phase coil (63), wherein A phase coil (61)
It is adjacent with B phase coil (62) abut, B phase coil (62) is adjacent with C phase coil (63) abuts；The A phase coil (61), B phase line
Circle (62), C phase coil (63) respectively include the low-voltage coil (9) positioned at the high-tension coil (8) in outside and positioned inside,
It is characterized by: the iron core (5) is equipped with two layers；The exterior portion of the A phase coil (61), C phase coil (63) it is outer
Side section is equipped with iron pressing plate (4), and the iron pressing plate (4) is arranged between two layers of iron core (5)；
The A phase coil (61), B phase coil (62), C phase coil (63) inner-diameter portion be equipped with epoxy plate (7), the epoxy
Plate (7) is arranged between two layers of iron core (5)；
The outside of the iron core (5) is equipped with side folder (1), and the side folder (1) is equipped with nail pressing nut (2), the nail pressing spiral shell
The nail pressing (3) for resisting iron pressing plate (4) is equipped in female (2)；
High-tension coil described in every phase (8) and low-voltage coil (9) are tightened by binding strap.
2. the fastening structure according to claim 1 for solving the problems, such as amorphous alloy transformer resistance to shorting, it is characterised in that: institute
It states iron pressing plate (4) and is wrapped up with tectorial paper and insulated between iron core (5).
3. the fastening structure according to claim 1 for solving the problems, such as amorphous alloy transformer resistance to shorting, it is characterised in that: institute
Binding strap is stated using insulband.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250426.7A CN109148121A (en) | 2018-10-25 | 2018-10-25 | Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250426.7A CN109148121A (en) | 2018-10-25 | 2018-10-25 | Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109148121A true CN109148121A (en) | 2019-01-04 |
Family
ID=64809570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811250426.7A Pending CN109148121A (en) | 2018-10-25 | 2018-10-25 | Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting |
Country Status (1)
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| CN (1) | CN109148121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517772A (en) * | 2020-04-10 | 2021-10-19 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Suspension propulsion and guide integrated module and magnetic suspension track system |
| CN113517773A (en) * | 2020-04-10 | 2021-10-19 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Integrated suspension propulsion module |
| CN114284046A (en) * | 2021-11-15 | 2022-04-05 | 上海置信电气非晶有限公司 | Oil-immersed transformer body |
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| CN206098118U (en) * | 2016-09-19 | 2017-04-12 | 上海南桥变压器有限责任公司 | Metallic glass iron core transformer insulation system |
| CN206098119U (en) * | 2016-09-19 | 2017-04-12 | 上海南桥变压器有限责任公司 | Metallic glass transformer bearing structure |
| CN206907602U (en) * | 2017-05-05 | 2018-01-19 | 特变电工智能电气有限责任公司 | Resistance to shorting amorphous alloy transformer |
| CN207082417U (en) * | 2017-07-28 | 2018-03-09 | 佛山市中研非晶科技股份有限公司 | A kind of amorphous alloy dry-type transformer of noise reduction and anti-sudden short circuit |
| CN208781673U (en) * | 2018-10-25 | 2019-04-23 | 无锡市电力变压器有限公司 | Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting |
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| WO2014132450A1 (en) * | 2013-03-01 | 2014-09-04 | 株式会社日立産機システム | Oil-filled transformer |
| CN203552898U (en) * | 2013-09-25 | 2014-04-16 | 衢州巨变电气设计有限公司 | Body structure of amorphous alloy transformer |
| CN205104338U (en) * | 2015-10-30 | 2016-03-23 | 江苏华鹏变压器有限公司 | Problem of anti short circuit of metallic glass transformer is solved from clamping structure |
| CN206098118U (en) * | 2016-09-19 | 2017-04-12 | 上海南桥变压器有限责任公司 | Metallic glass iron core transformer insulation system |
| CN206098119U (en) * | 2016-09-19 | 2017-04-12 | 上海南桥变压器有限责任公司 | Metallic glass transformer bearing structure |
| CN206907602U (en) * | 2017-05-05 | 2018-01-19 | 特变电工智能电气有限责任公司 | Resistance to shorting amorphous alloy transformer |
| CN207082417U (en) * | 2017-07-28 | 2018-03-09 | 佛山市中研非晶科技股份有限公司 | A kind of amorphous alloy dry-type transformer of noise reduction and anti-sudden short circuit |
| CN208781673U (en) * | 2018-10-25 | 2019-04-23 | 无锡市电力变压器有限公司 | Solve the problems, such as the fastening structure of amorphous alloy transformer resistance to shorting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517772A (en) * | 2020-04-10 | 2021-10-19 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Suspension propulsion and guide integrated module and magnetic suspension track system |
| CN113517773A (en) * | 2020-04-10 | 2021-10-19 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Integrated suspension propulsion module |
| CN114284046A (en) * | 2021-11-15 | 2022-04-05 | 上海置信电气非晶有限公司 | Oil-immersed transformer body |
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