CN101794663B - Dry-type iron-core reactor with resin molded coil - Google Patents
Dry-type iron-core reactor with resin molded coil Download PDFInfo
- Publication number
- CN101794663B CN101794663B CN2010101411313A CN201010141131A CN101794663B CN 101794663 B CN101794663 B CN 101794663B CN 2010101411313 A CN2010101411313 A CN 2010101411313A CN 201010141131 A CN201010141131 A CN 201010141131A CN 101794663 B CN101794663 B CN 101794663B
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- coil
- core
- iron core
- iron
- metal forming
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Abstract
The invention discloses a dry-type iron-core reactor with a resin molded coil, which comprises a coil and an iron core, wherein the iron core is formed by fixing a plurality of core laminations together through an iron core clamping piece; the coil is sheathed on the iron core; the coil comprises a magnet wire with insulation on the outer side and a metallic foil cylinder with an opening on the inner side; the two ends of the opening of the metallic foil cylinder are overlapped, and the overlap section is staggered; the metallic foil cylinder and the iron core are connected with each other; insulating resin is molded between the metallic foil cylinder and the magnet wire with insulation; and both the metallic foil cylinder and the magnet wire with insulation are wrapped in the molded insulating resin. The invention completely converts the electrical insulation among the magnet wire, the iron core and the clamping piece in the coil into single resin insulation so as to reduce the distance between the coil and the iron core, thereby reducing the diameter of the coil, the usage of the magnet wire, the cost and the energy consumption.
Description
Technical field
The present invention relates to a kind of suitable resin-cast metal forming shielded coil dry-type iron-core reactor.
Background technology
Along with the development of human civilization, people require increasingly highly for power supply quality, and even to this day, reactor in application on power system more and more widely.Reactor can be divided into by its purposes: current limiting reactor, filter reactor, smoothing reactor, power factor compensation reactor, series reactor, interphase reactor, earthing reactor, arc suppression coil, inlet wire reactor, outlet reactor, saturable reactor, autotransducer, variable reactor (REgulatable reactor, controlled reactor), yoke stream reactor, series resonance reactor, parallel resonance reactor, starting reactor etc.Can be divided into by its structure: air core reactor, iron-core reactor (comprise two kinds of dry type and oil immersed types; Its core limb is all by the brace between one or more cakes unshakable in one's determination, insulation cushion and cake or connect lead and form, and makes each metal section and part and the iron yoke of core limb and core clamping all be in same current potential) and half heart reactor.
At present, the dry-type iron-core reactor of selling on the market can be divided into resin-cast, common sealing and three kinds of the dry types of ventilating, and electric insulation intensity is to lean on the compound inslation of resin and air gap between its coil and iron core or folder; Perhaps only lean on the single insulating of air gap to support; Because the insulation property of air can not show a candle to the good insulation preformance of resin, under the situation of equal insulation distance, be the insulation electrical intensity height that the compound inslation of single air-gap insulation or resin and air gap all can not show a candle to single resin; Thereby; More than the insulation distance of three kinds of iron-core reactors all bigger, exist the problem that volume is big, consumptive material is many, power consumption is big, cause cost higher.
Summary of the invention
Problems such as the volume that the present invention is directed to existing dry-type iron-core reactor existence is big, consumptive material is many, power consumption is big provide the resin-cast coil dry iron-core reactor that a kind of volume is little, power consumption is few.
Resin-cast coil dry iron-core reactor of the present invention adopts following technical solution:
This resin-cast coil dry iron-core reactor; Comprise coil and iron core, unshakable in one's determination being fixed together through core clamping by each lamination forms, and mounting coil is on iron core; The metal forming tube of the electromagnetic wire of the tape insulation outside coil comprises and the band opening of inboard; The opening two ends of this metal forming tube have overlapping, and lap staggers, and the metal forming tube is connected with iron core; Be cast with insulating resin between the electromagnetic wire of metal forming tube and tape insulation, the electromagnetic wire of metal forming tube and tape insulation all is wrapped in the insulating resin of cast.
Metal forming tube and unshakable in one's determination being connected are between metal forming tube inboard and core clamping, to be connected plain conductor, unshakable in one's determinationly are connected through the iron core grounding sheet with core clamping.
The present invention has changed the insulation form of the compound electric insulation of the single air-gap insulation between coil, iron core and the ground in the existing dry-type iron-core reactor or resin and air gap; Electric insulation between electromagnetic wire in the coil and iron core and folder is converted into single insulation resin fully; Dwindle the distance between coil and iron core greatly, thereby dwindled the diameter of coil, reduced the consumption of electromagnetic wire; Dwindle volume, practiced thrift cost, and reduced energy consumption.
Description of drawings
Fig. 1 is the structural representation of resin-cast coil dry iron-core reactor of the present invention.
Fig. 2 is along the cutaway view of A-A line among Fig. 1.
Wherein: 1, iron core, 2, core clamping, 3, plain conductor, 4, insulating resin, 5, coil, 6, the electromagnetic wire of tape insulation, 7, the metal forming tube, 8, cross-over block, 9, the iron core grounding sheet.
Embodiment
As shown in Figure 1; The same with existing dry-type iron-core reactor, resin-cast coil dry iron-core reactor of the present invention also comprises the iron core be made up of silicon steel sheet 1 and coil 5, and each silicon steel sheet of unshakable in one's determination 1 tightens together through two groups of core clampings 2 up and down; Unshakable in one's determination 1 is connected through iron core grounding sheet 9 with core clamping 2; Coil 5 is sleeved on unshakable in one's determination 1 the outside, the two ends up and down of coil 5 and be provided with cross-over block 8 between two core clampings 2 up and down, and coil 5 is entwined by the electromagnetic wire 6 of tape insulation.
What the present invention was different with prior art is the metal forming tube 7 that is provided with an opening in the inboard of coil 5, and metal forming tube 7 also can be other conducting metals generally with Copper Foil or aluminium foil.As shown in Figure 2, the opening two ends of this metal forming tube 7 have a bit of overlapping, but do not overlap, and stagger.The inboard of metal forming tube 7 is welded with plain conductor 3, and the other end of plain conductor 3 links to each other with core clamping 2, is connected through the iron core grounding sheet with core clamping 2 owing to unshakable in one's determination 1, and therefore, metal forming tube 7, iron core 1 and core clamping 2 threes' current potential is identical.Filled by the insulating resin 4 of vacuum pouring between the electromagnetic wire 6 of metal forming tube 7 and tape insulation, metal forming tube 7 is all wrapped up by the insulating resin 4 of vacuum pouring with the electromagnetic wire 6 of tape insulation fully.Metal forming tube 7 forms with core clamping 2 through plain conductor 3 and is electrically connected reliably; So just electromagnetic wire in the conventional coil and the electric insulation between iron core are converted into the electric insulation between electromagnetic wire and the metal forming; Just the compound inslation with traditional electromagnetic wire and resin between iron core and air becomes pure insulation resin; Improve the dielectric strength between coil electromagnetism line and iron core and ground greatly, dwindled volume, realized material-saving, energy-conservation effect.Resin-cast coil dry iron-core reactor of the present invention uses best results in the electrical network of 3～110kV.
Claims (2)
1. resin-cast coil dry iron-core reactor; Comprise coil and iron core, unshakable in one's determination being fixed together through core clamping by each lamination forms, and mounting coil is on iron core; It is characterized in that: the metal forming tube of the electromagnetic wire of the tape insulation outside coil comprises and the band opening of inboard; The opening two ends of this metal forming tube have overlapping, and lap staggers, and the metal forming tube is connected with iron core; Be cast with insulating resin between the electromagnetic wire of metal forming tube and tape insulation, the electromagnetic wire of metal forming tube and tape insulation all is wrapped in the insulating resin of cast.
2. resin-cast coil dry iron-core reactor according to claim 1; It is characterized in that: said metal forming tube and unshakable in one's determination being connected are between metal forming tube inboard and core clamping, to be connected plain conductor, unshakable in one's determinationly are connected through the iron core grounding sheet with core clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411313A CN101794663B (en) | 2010-04-08 | 2010-04-08 | Dry-type iron-core reactor with resin molded coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411313A CN101794663B (en) | 2010-04-08 | 2010-04-08 | Dry-type iron-core reactor with resin molded coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101794663A CN101794663A (en) | 2010-08-04 |
| CN101794663B true CN101794663B (en) | 2012-07-04 |
Family
ID=42587275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101411313A Expired - Fee Related CN101794663B (en) | 2010-04-08 | 2010-04-08 | Dry-type iron-core reactor with resin molded coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101794663B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895340B (en) * | 2014-11-24 | 2018-06-26 | 特变电工衡阳变压器有限公司 | Iron core large flat bread ground structure, the earthing method of reactor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3022070C2 (en) * | 1980-06-12 | 1986-05-07 | Transformatoren Union Ag, 7000 Stuttgart | Screen body for wound core legs of transformers, inductors and the like. |
| JPH1167557A (en) * | 1997-08-26 | 1999-03-09 | Fuji Electric Co Ltd | Core having shield part in transformer |
| CN2359788Y (en) * | 1998-07-17 | 2000-01-19 | 山东省金曼克电气集团股份有限公司 | Resin pouring winding air flue shielding structure of power transformer |
| CN2408558Y (en) * | 2000-01-25 | 2000-11-29 | 王巨丰 | Lighting protection isolated transformer |
| CN2862285Y (en) * | 2005-11-29 | 2007-01-24 | 顺特电气有限公司 | Teeming transformer coil having shielding |
| JP2008187015A (en) * | 2007-01-30 | 2008-08-14 | Hitachi Ltd | High-voltage resin mold transformer |
| CN201655500U (en) * | 2010-04-08 | 2010-11-24 | 崔贵峰 | Resin casting coil dry type iron core reactor |
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2010
- 2010-04-08 CN CN2010101411313A patent/CN101794663B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101794663A (en) | 2010-08-04 |
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Granted publication date: 20120704 Termination date: 20150408 |
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