CN201655500U

CN201655500U - Resin casting coil dry type iron core reactor

Info

Publication number: CN201655500U
Application number: CN2010201521817U
Authority: CN
Inventors: 崔贵峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-08
Filing date: 2010-04-08
Publication date: 2010-11-24
Anticipated expiration: 2020-04-08

Abstract

The utility model discloses a resin casting coil dry type iron core reactor, which comprises coils and an iron core, wherein the iron core is formed through fixing various iron core sheets through iron core clamp pieces, the coils are sleeved on the iron core, the coils comprise electromagnetic wires and a metal foil cylinder, the outer sides of the electromagnetic wires are insulated, the inner side of the metal foil cylinder is provided with openings, the two ends of the openings of the metal foil cylinder are overlapped, overlapped parts are stagger, the metal foil cylinder is connected with the iron core, insulating resin is cast between the metal foil cylinder and the insulated electromagnetic wires, and the metal foil cylinder and the insulated electromagnetic wires are all packed by the cased insulated resin. The resin casting coil dry type iron core reactor transforms electric insulating between the electromagnetic wires in the coils and the iron core and the clamping pieces to single resin insulating, reduces the distance of the coils and the iron core, thereby reducing the diameter of the coils, reducing the use amount of the electromagnetic wires, and reducing the cost and the energy consumption.

Description

A kind of resin-cast coil dry iron core reactor

Technical field

The utility model relates to a kind of coil dry iron core reactor of suitable resin-cast.

Background technology

Along with the development of human civilization, people are more and more higher for the requirement of 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 iron core column all is made up of brace between one or more iron core cakes, insulation cushion and cake or connection lead, makes each metal part of iron core column all be in same current potential with iron yoke and iron core folder) and half heart reactor.

At present, the reactor with T-shaped core of selling on the market can be divided into resin-cast, common sealing and three kinds of the dry types of ventilating, electric insulation intensity is the compound inslation by 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, it is 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, it is big to exist volume, consumptive material is many, the big problem that consumes energy causes cost higher.

Summary of the invention

Problems such as the utility model is big at the volume that existing reactor with T-shaped core exists, 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 utility model adopts following technical solution:

This resin-cast coil dry iron core reactor, comprise coil and iron core, iron core is fixed together by the iron core folder by each lamination and forms, mounting coil is on iron core, the metal forming tube of the band opening of the electromagnetic wire of the tape insulation outside coil comprises and inboard, the opening two ends of this metal forming tube have overlapping, lap staggers, 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 insulating resin that the electromagnetic wire of metal forming tube and tape insulation is all poured into a mould wraps.

Metal forming tube and being connected of iron core be the metal forming tube inboard with the iron core folder between be connected plain conductor, iron core is connected by the iron core grounding sheet with the iron core folder.

The utility model 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 reactor with T-shaped core 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, dwindled the distance between coil and iron core greatly, thereby dwindled the diameter of coil, reduced the consumption of electromagnetic wire, dwindle volume, saved cost, and reduced energy consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model resin-cast coil dry iron core reactor.

Fig. 2 is along the cutaway view of A-A line among Fig. 1.

Wherein: 1, iron core, 2, the iron core folder, 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 reactor with T-shaped core, resin-cast coil dry iron core reactor of the present utility model also comprises iron core 1 and the coil of being made up of silicon steel sheet 5, each silicon steel sheet of iron core 1 tightens together by two groups of iron core folders 2 up and down, iron core 1 is connected by iron core grounding sheet 9 with iron core folder 2, coil 5 is sleeved on the outside of iron core 1, the two ends up and down of coil 5 and be provided with cross-over block 8 between two iron core folders 2 up and down, coil 5 is entwined by the electromagnetic wire 6 of tape insulation.

The utility model unlike the prior art be the metal forming tube 7 that is provided with an opening in the inboard of coil 5, metal forming tube 7 generally with Copper Foil or aluminium foil, also can be other conducting metals.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 iron core folder 2, because iron core 1 is connected by the iron core grounding sheet with iron core folder 2, therefore, metal forming tube 7, iron core 1 and iron core folder 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 fully with the electromagnetic wire 6 of tape insulation.Metal forming tube 7 forms with iron core folder 2 by plain conductor 3 and is electrically connected reliably, so just the 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, improved the dielectric strength between coil electromagnetism lead and iron core and ground greatly, dwindle volume, realized material-saving, energy-conservation effect.Resin-cast coil dry iron core reactor of the present utility model uses best results in the electrical network of 3～110kV.

Claims

1. resin-cast coil dry iron core reactor, comprise coil and iron core, iron core is fixed together by the iron core folder by each lamination and forms, mounting coil is on iron core, it is characterized in that: the metal forming tube of the band opening of the electromagnetic wire of the tape insulation outside coil comprises and inboard, the opening two ends of this metal forming tube have overlapping, lap staggers, 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: described metal forming tube and being connected of iron core be the metal forming tube inboard with the iron core folder between be connected plain conductor, iron core is connected by the iron core grounding sheet with the iron core folder.