CN105869858A - Energy-saving reel iron core transformer body structure for electrified railway - Google Patents
Energy-saving reel iron core transformer body structure for electrified railway Download PDFInfo
- Publication number
- CN105869858A CN105869858A CN201610396413.5A CN201610396413A CN105869858A CN 105869858 A CN105869858 A CN 105869858A CN 201610396413 A CN201610396413 A CN 201610396413A CN 105869858 A CN105869858 A CN 105869858A
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- China
- Prior art keywords
- iron core
- coil
- transformer body
- body structure
- energy
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention provides an energy-saving reel iron core transformer body structure for an electrified railway and relates to a transformer body structure. At present, a transformer iron core of a stacked iron core structure is large in no-load loss and large in no-load current. The structure comprises an iron core, a coil, an insulating element and a fastening device. The iron core is of a three-post double-frame reel iron core structure or four-post three-frame reel iron core structure, and one or two middle posts and two lateral posts are formed. The structure is characterized in that the iron core comprises a plurality of iron core units which are closed single-frame reel iron core bodies, the middle post is formed by splicing the iron core units, and the cross section of the middle post is larger than the section of the lateral posts; the coil is only wound on the middle post of the iron core. According to the technical scheme, a reel iron core splicing mode is adopted, so that the section face of the middle post is larger than that of the lateral posts, the structure has the advantages that no-load loss is low, no-load current is small, noise is small, the energy-saving effect is obvious, insulating strength is high, and overload and anti-short circuit capacity are high, and the power supply requirement of the railway can be met.
Description
Technical field
The present invention relates to a kind of structure of transformer body, especially a kind of energy-saving reel iron core transformer of electric railway
Machine body structure.
Background technology
Transformer invention has been one hundred years of history so far, although transformer efficiency is high, but because its quantity is many, capacity
Greatly, loss is big, and waste is serious, and it is imperative for therefore reducing transformer loss.The most in recent years, China's electric railway
Develop rapidly, tractive transformer comes into operation in a large number, due to railway power supply no-load transformer long operational time, open circuit loss
Greatly, the waste brought is the biggest.Open circuit loss in transformer loss, i.e. iron loss, occur mainly in transformer core lamination, main
If the loss brought because the magnetic line of force of alternation produces magnetic hysteresis and eddy current by iron core.Transformer core used folded iron core in the past
Structure, due to reasons such as structure, material, techniques, the open circuit loss causing transformer is big, no-load current big, and noise is big, folded iron core
Structure transformer is difficult to meet the Special use requirements such as the low-loss of rail traction circuit, low noise, high overload, frequently short circuit.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to carry out prior art improving and improving,
There is provided a kind of electric railway energy-saving roll core transformer body structure, to reach to reduce the purpose of open circuit loss.To this end,
The present invention takes techniques below scheme.
A kind of electric railway is by energy-saving roll core transformer body structure, including iron core, coil, insulating part and fastening
Device；Described iron core is the double frame coiled core of three posts or four post three frame coiled cores, forms one or two intermediolateral columns
With two other posts；It is characterized in that: described iron core includes the single frame volume that multiple iron core unit, described iron core unit are Guan Bi
Iron core, described intermediolateral column is spliced to form by multiple iron core unit, and the sectional dimension of intermediolateral column is more than the sectional dimension of other post；Line
Circle is only wound on the intermediolateral column of iron core.When iron core is the double frame coiled core of three posts, form an intermediolateral column and two sides
Post；When iron core is four post three frame coiled cores, form two intermediolateral columns and two other posts；The technical program uses volume iron core to spell
The mode connect, makes intermediolateral column cross section more than other post, and open circuit loss is low, no-load current is little, noise is little, energy-saving effect is obvious, insulation
The features such as intensity height, overload and anti-short circuit capability are strong, can meet the requirement of railway power supply.
As improving further and supplementing technique scheme, present invention additionally comprises following additional technical feature.
The correspondence of iron yoke up and down of iron core places upper clamping piece and lower clamping piece, and folder from top to bottom connects fastening by stretching screw；With
Coil, iron core and insulating part are compacted into an overall structure by the hold down gag that upper clamping piece connects.Hold down gag by coil, iron core,
Insulating part pressure is integral, and the iron core unit of multiple splicings is particularly connected to become entirety further, connects reliable.
Described iron core unit is rolled by silicon steel sheet and forms, the cross section semicircular in shape of iron core unit or circle, and intermediolateral column cuts
Face is rounded, and the cross section of other post is rounded.When the cross section semicircular in shape of iron core unit, intermediolateral column is spliced by two iron core unit
Forming, when the cross section of iron core unit is rounded, intermediolateral column is spliced by four iron core unit.
Described iron core unit is rolled continuously by the silicon steel sheet of annealed process and forms.Silicon steel sheet is flexible, after annealing,
Improving product quality, reduce difficulty of processing, iron core unit is rolled continuously by silicon steel sheet, and working (machining) efficiency is high, constant product quality.
Each iron core unit of composition iron core is the most identical.Convenient processing and splicing.
Stitching portion between adjacent iron cores unit is provided with iron core oil duct, and after adjacent iron cores unit spliced, periphery binding strap is tied up
Prick and form an overall structure.Iron core oil duct between adjacent iron cores unit, is effectively improved radiating effect, accelerates heat radiation.Band is tied up
Prick, improve intensity.
It is around in outward low-voltage coil, high-tension coil and voltage regulation coil that the coil of intermediolateral column includes being arranged concentrically from the inside to the outside.
All placing the first insulating part between iron core and coil and between adjacent windings, it is exhausted that the upper and lower two ends of coil all place second
Edge part.
Beneficial effect: the open circuit loss of the technical program is than folded appendiron core transformer open circuit loss reduction about 40%, unloaded electricity
Stream, noise etc. are significantly reduced, and energy-saving effect is notable, is electric railway irreplaceable energy saving transformer equipment；Simultaneously
The capability of overload and the anti-short circuit capability that also improve transformer are strong, meet the particular/special requirement of electric railroad.
Accompanying drawing explanation
Fig. 1 is the device body assembling structure sectional view of invention；
Fig. 2 is the double frame core structure figure of single-phase three posts of invention；
Fig. 3 is the single-phase four post three frame core structure figures of invention；
Fig. 4 be invention cross section be semicircle iron core-closed structure chart；
Fig. 5 be invention cross section be circular closure core structure figure；
In figure: 1-hold down gag；2-upper clamping piece；3-iron core；301-cross section is semicircle iron core-closed structure；302-cross section is
Circular closure core structure；303-iron core unit；304-intermediolateral column；The other post of 305-；4-the second insulating part；5-stretching screw；6-
Voltage regulation coil；7-the first insulating part；8-high-tension coil；9-low-voltage coil；10-lower clamping piece；11-binding strap；12-iron core oil duct.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in further detail.
Embodiment one:
As shown in Fig. 1,2,4, the present invention includes iron core 3, coil and fastener；Described iron core 3 is three posts double frame volume iron cores
Structure, forms an intermediolateral column 304 and two other posts 305；Described iron core 3 includes two iron core unit 303, described iron core
Unit 303 is the single frame volume iron core of Guan Bi, and described intermediolateral column 304 is spliced to form by two iron core unit 303, intermediolateral column 304
Sectional dimension more than the sectional dimension of other post 305；Coil is only wound on the intermediolateral column 304 of iron core 3.It is around in outward intermediolateral column
The coil of 304 includes low-voltage coil 9, high-tension coil 8 and the voltage regulation coil 6 being arranged concentrically from the inside to the outside.For improving dielectric level,
All placing the first insulating part 7 between iron core 3 and coil and between adjacent windings, the second insulating part 4 is all placed at the upper and lower two ends of coil.
Reliable for connecting, the upper and lower iron yoke correspondence of iron core 3 places upper clamping piece 2 and lower clamping piece 10, upper clamping piece 2, lower clamping piece 10
Between by stretching screw 5 connect fastening；Coil, iron core 3 and insulating part are compacted into by the hold down gag 1 being connected with upper clamping piece 2
One overall structure.Coil, iron core, insulating part are pressed integral, particularly by the iron core unit 303 of multiple splicings by hold down gag
It is connected to become entirety further, connects reliable.
For convenience of splicing, described iron core unit 303 is rolled by silicon steel sheet and forms, and the cross section of iron core unit 303 is semicircle
Shape, intermediolateral column 304 cross section is rounded, and the cross section of other post 305 is rounded.
For improving product quality, described iron core unit 303 is rolled continuously by the silicon steel sheet of annealed process and forms.Silicon steel
Sheet is flexible, after annealing, improves product quality, reduces difficulty of processing, and iron core unit 303 is rolled continuously by silicon steel sheet, processing
Efficiency is high, constant product quality.
For convenience of processing and splicing, each iron core unit 303 of composition iron core 3 is the most identical.
For accelerating heat radiation, extending the life-span of product, the stitching portion between adjacent iron cores unit 303 is provided with iron core oil duct 12,
After adjacent iron cores unit 303 splicing, periphery binding strap 11 colligation forms an overall structure.Iron between adjacent iron cores unit 303
Core oil road, is effectively improved radiating effect, accelerates heat radiation.Band colligation, good integrity, it is simple to assembling, concurrently facilitate raising strong
Degree.
Embodiment two:
It is with embodiment one difference: as it is shown on figure 3, iron core 3 is four post three frame coiled cores, form two intermediolateral columns
304 and two other posts 305.To adapt to different needs.Three cross sections be semicircular iron core unit 303 at length direction successively
Connect, just can form four post three frame coiled cores；Or the iron core unit 303 being circular by six cross sections is spliced, two
Individual iron core unit 303 is spliced to form one group of iron core unit 303 at width, and three groups of iron core unit 303 are spliced at length direction
Form four post three frame coiled cores.It is enclosed within outside coil on intermediolateral column 304.
Embodiment three:
It is with embodiment one difference: as it is shown in figure 5, the cross section of iron core unit 303 is rounded；Intermediolateral column 304 is by four
Iron core unit 303 is spliced, and two iron core unit 303 are oppositely arranged formation one group at width, and two groups of iron core unit 303 exist
Length direction docking forms iron core, the most just can form criss-cross iron core oil duct on intermediolateral column 304.Accelerate heat radiation, especially
It is applicable to large-scale iron core.
Assembling process:
1, the cross section rolled into the most successively by the silicon steel sheet of two or more annealed process is semicircle iron core-closed knot
Structure 301 or the iron core-closed structure 302 of circle, being spliced into intermediolateral column 304 cross section for circular, Pang Zhu305 cross section, both sides is semicircle
Shape structure.It is provided with iron core oil duct 12, by the binding strap 11 integral structure of colligation after splicing at iron core 3 Mosaic face.
2, coil is the most once wound on the intermediolateral column 304 of iron core 3, and first coiling low-voltage coil 9, further around high-tension coil processed
8, last coiling voltage regulation coil 6.It is designed with radial insulating part 7 between each coil and between coil and iron core 3, plays insulation and dissipate
Heat effect.The two ends up and down of coil are designed with axial dielectric part 4, it is simple to insulate and compress.
3, after coil winding completes, placing upper clamping piece 2 and lower clamping piece 10 respectively at iron core 3 two ends, two folders are by tension
Screw rod 5 connects fixing.
4, finally place the hold down gag 1 being connected with upper clamping piece 2 in axial dielectric part 4 upper surface coil is compressed,
Coil, iron core 3 is made to become a structure of transformer body entirety, during preventing transformer transporting and running overload process
In, owing to device body loosens the operation troubles brought, it is effectively increased anti-short circuit capability and the capability of overload of transformer.
A kind of electric railway shown in figure 1 above-5 tool that energy-saving roll core transformer body structure is the present invention
Body embodiment, has embodied substantive distinguishing features of the present invention and progress, can be according to actual use needs, in the enlightenment of the present invention
Under, it is carried out the equivalent modifications of the aspect such as shape, structure, all at the row of protection domain of this programme.
Claims (8)
1. electric railway is by an energy-saving roll core transformer body structure, including iron core (3), coil, insulating part and tight
It is fixedly mounted with and puts；Described iron core (3) is the double frame coiled core of three posts or four post three frame coiled cores, in forming one or two
Studding (304) and two other posts (305)；It is characterized in that: described iron core (3) includes multiple iron core unit (303), described
Iron core unit (303) is the single frame volume iron core of Guan Bi, and described intermediolateral column (304) is spliced to form by multiple iron core unit (303),
The sectional dimension of intermediolateral column (304) is more than the sectional dimension of other post (305)；Coil is only wound on the intermediolateral column (304) of iron core (3)
On.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 1 exist
In: the correspondence of iron yoke up and down of iron core (3) places upper clamping piece (2) and lower clamping piece (10), and upper and lower folder (2,10) passes through stretching screw
(5) fastening is connected；Coil, iron core (3) and insulating part are compressed integral knot by the hold down gag (1) being connected with upper clamping piece (2)
Structure.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 1 exist
Rolled by silicon steel sheet in: described iron core unit (303) and form, the cross section semicircular in shape of iron core unit (303) or circle, in
Studding (304) cross section is rounded, and the cross section of other post (305) is rounded.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 3 exist
Rolled continuously by the silicon steel sheet of annealed process in: described iron core unit (303) and form.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 1 exist
In: each iron core unit (303) of composition iron core (3) is the most identical.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 1 exist
In: the stitching portion between adjacent iron cores unit (303) is provided with iron core oil duct (12), periphery after adjacent iron cores unit (303) splicing
An overall structure is formed with binding strap (11) colligation.
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 1 exist
In: it is around in outward low-voltage coil (9), high-tension coil (8) and pressure regulation that the coil of intermediolateral column (304) includes being arranged concentrically from the inside to the outside
Coil (6).
A kind of electric railway energy-saving roll core transformer body structure, its feature the most according to claim 7 exist
In: all placing the first insulating part (7) between iron core (3) and coil and between adjacent windings, the upper and lower two ends of coil all place second
Insulating part (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610396413.5A CN105869858A (en) | 2016-06-07 | 2016-06-07 | Energy-saving reel iron core transformer body structure for electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610396413.5A CN105869858A (en) | 2016-06-07 | 2016-06-07 | Energy-saving reel iron core transformer body structure for electrified railway |
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| Publication Number | Publication Date |
|---|---|
| CN105869858A true CN105869858A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610396413.5A Pending CN105869858A (en) | 2016-06-07 | 2016-06-07 | Energy-saving reel iron core transformer body structure for electrified railway |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229139A (en) * | 2016-09-08 | 2016-12-14 | 特变电工股份有限公司 | A kind of three-phase solid laminated core, coil and power transformer |
| CN112002531A (en) * | 2019-05-27 | 2020-11-27 | 特变电工沈阳变压器集团有限公司 | Amorphous alloy transformer with round iron core short-circuit-resistant structure and manufacturing method thereof |
| CN112420345A (en) * | 2020-11-11 | 2021-02-26 | 广东电网有限责任公司 | Power transformer and power supply system |
| CN113035525A (en) * | 2021-05-28 | 2021-06-25 | 常州太平洋变压器有限公司 | 220kV three-dimensional wound core power transformer and core manufacturing method |
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| CN2444300Y (en) * | 2000-09-27 | 2001-08-22 | 朱英浩 | Rolling magnetic core |
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| CN204407146U (en) * | 2015-02-14 | 2015-06-17 | 海鸿电气有限公司 | The single-phase rewinding material of a kind of transformer with oil duct |
| WO2016083866A1 (en) * | 2014-11-25 | 2016-06-02 | Aperam | Basic module for magnetic core of an electrical transformer, magnetic core comprising said basic module, method for manufacturing said magnetic core, and transformer comprising said magnetic core |
| CN205881645U (en) * | 2016-06-07 | 2017-01-11 | 卧龙电气集团股份有限公司 | Electric Railway is with energy -saving roll of iron core transformer ware body structure |
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| JPH10223445A (en) * | 1997-02-12 | 1998-08-21 | Daihen Corp | Stationary inductive electric machine |
| CN2444300Y (en) * | 2000-09-27 | 2001-08-22 | 朱英浩 | Rolling magnetic core |
| CN102543384A (en) * | 2010-12-20 | 2012-07-04 | 沈阳福林特种变压器有限公司 | Mining explosion-proof all-insulation dry type transformer with amorphous alloy iron core for mobile transformer substation |
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| CN204407146U (en) * | 2015-02-14 | 2015-06-17 | 海鸿电气有限公司 | The single-phase rewinding material of a kind of transformer with oil duct |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229139A (en) * | 2016-09-08 | 2016-12-14 | 特变电工股份有限公司 | A kind of three-phase solid laminated core, coil and power transformer |
| CN112002531A (en) * | 2019-05-27 | 2020-11-27 | 特变电工沈阳变压器集团有限公司 | Amorphous alloy transformer with round iron core short-circuit-resistant structure and manufacturing method thereof |
| CN112420345A (en) * | 2020-11-11 | 2021-02-26 | 广东电网有限责任公司 | Power transformer and power supply system |
| CN113035525A (en) * | 2021-05-28 | 2021-06-25 | 常州太平洋变压器有限公司 | 220kV three-dimensional wound core power transformer and core manufacturing method |
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Application publication date: 20160817 |