CN203596254U

CN203596254U - Novel dry-type air-core reactor

Info

Publication number: CN203596254U
Application number: CN201320809298.1U
Authority: CN
Inventors: 张弘; 李文革
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-09
Filing date: 2013-12-09
Publication date: 2014-05-14
Anticipated expiration: 2023-12-09

Abstract

The utility model discloses a novel dry-type air-core reactor. The novel dry-type air-core reactor comprises a coil, a supporting bar, a pull strap and a flange. Rectangular aluminum bars are arranged at the two ends in the axial direction of the supporting bar, an equipotential ring and the flange are arranged outside the aluminum bars, and the equipotential ring is a non-sealed ring. The novel dry-type air-core reactor has the advantages that an inner-diameter center part of an upper busbar coil and an inner-diameter center part of a lower busbar coil in a traditional dry-type air-core reactor are removed so that an original overall upper busbar and lower busbar are developed into a plurality of split aluminum bars. When the coil is wound, the upper split aluminum bars and the lower split aluminum bars are fixed through a positioning mold reliably connected with an adjustable winding mold. Manufacturing processes of the novel dry-type air-core reactor are simple, original busbar welding dies are cancelled, the processes of busbar bonding strap binding and solidifying before winding are reduced, original winding molds are cancelled, and transformer winding molds better in universality are adopted. The novel dry-type air-core reactor can be used for indoor and outdoor products with the same structure as dry-type air-core series reactors, parallel reactors, filter reactors, smoothing reactors and disruptive reactors.

Description

A kind of Novel dry type hollow electric reactor

Technical field

The utility model relates to field of electrical equipment, is a kind of reactor specifically.

Background technology:

Dry-type air-core reactor is the reactor product of new generation that China occurs the eighties in 20th century, its structure is take Canadian TRENCH ELECTRIC company product as representative, as Fig. 1, shown in Fig. 2, coil 1 is layer coil, aluminum steel coiling, layer insulation adopts glass fiber yarn or the band of epoxy resin dipping, utilize the wrapped technology of epoxy that coil is sealed completely, wire is the bonding mechanical strength that greatly increases coil mutually, between coil groups, there is stay 2 as air duct, so that circulation of air circulation, reach cooling object, it is to be soldered on the bus-bar 3 of aluminum that all ends connect, coil 1 and bus-bar 3 use drawstrings 4 are held together, moulding is heating and curing after coil winding, coil supports and insulate by post insulator between over the ground.

Due to this kind of structure dry-type air-core reactor during fabrication, bus-bar 3 is weld assembly, need first with welding positioner fix, calibration, carry out welding between each arm aluminium row and flange and centre strut, and before coiling, bus-bar 3 also will carry out in center adhesive tape 6 colligations and solidify to increase the intensity of bus-bar 3, while preventing that coil 1 from winding the line, because of bus-bar 3 insufficient strength, cause distortion to cause that flange 5 positions are inaccurate, when coiling 1, need the winding former of preparation ad hoc structure to carry out coiling, winding former as shown in Figure 3, operating process is as follows: by upper, lower bus-bar 3 is separately fixed on mould two side templates 9, two distances between plates are spacing with position-limiting tube 7 by coil design figure paper size, in two templates 9, penetrate bus-bar 3 with screw rod 8 at double by bus-bar isodisperse, fix with nut, make screw rod 8 surround a circumference (adjusting to certain diameter), put distinguish insulating cylinder in screw rod 8 outsides, then laying some strata ester films (is while guaranteeing form removal, resin is not stained with distinguish insulating cylinder, be convenient to dismounting), reach after the internal diameter size of coil 1, just can winding around 1, in winding process, carry out coil winding by coil 1 design drawing, stay is installed, adhesion belt binding between upper and lower bus-bar and coil, after coil completion, coil 1 with mould enter drying room carry out coil volume drying solidify, finally shed mould and distinguish insulating cylinder and polyester film, coil manufacture has just completed.Due to this infrastructure product, installation and removal mould is more time-consuming, effort all, and the difficult adjustment of the internal diameter size of coil, and winding mould must be counted difference design according to bus-bar arm simultaneously, and the adjusting range of mould is limited, causes the utilance of every kind of mould not high.

In addition, after this structure hollow core device curing molding, the adhesive tape of bus-bar inside is to the intensity of coil without effect, and bus-bar converges to center in order to make bus-bar equipotential, has limited the design and installation of coil die.

Summary of the invention

The purpose of this utility model is to provide a kind of Novel dry type hollow electric reactor.Can change conventional manufacturing process and adopt transformer coil universal mold reduce the cost of product and raise the efficiency, concrete technical scheme is as follows:

A kind of Novel dry type hollow electric reactor, comprises coil, stay, drawstring, flange, and the axial two ends of described stay arrange aluminium row, described aluminium row's arranged outside equipotential ring and flange, and described equipotential ring is non-closed-loop.

Described aluminium row is rectangle.

The utility model has the advantages that:

1. aluminium row structure (see figure 7) is simpler than former bus-bar, is a rectangular slab, than original saving material, manufactures also more conveniently, has reduced welding job amount and distortion, has cancelled mould for welding.

2. aluminium row need not carry out center adhesion belt binding and solidify as bus-bar, has saved two procedures and adhesive tape material.

3. winding mould is conventional transformer winding mould, and versatility is stronger, and the scope of application is larger, has reduced the manufacturing expense of mould.

4. coil fills mould, mould unloading is very convenient, has improved production efficiency.

5. the setting of equipotential ring, had both played the effect of aluminium row equipotential, had fixed again aluminium row's position, had shielded again end winding electric field simultaneously, prevented wedge angle electric discharge.

6. due to fixing to aluminium row of jig, guaranteed in coil winding and solidification process, each aluminium row upper flange position dimension accurately, can guarantee so on-the-spot installation after porcelain insulator and the mating of ground size.

Accompanying drawing explanation:

Fig. 1 is existing air core reactor loop construction schematic diagram.

Fig. 2 is the cutaway view of accompanying drawing 1.

Fig. 3 is existing coil die structure chart

Fig. 4 is the utility model loop construction schematic diagram.

Fig. 5 is the cutaway view of accompanying drawing 4.

Fig. 6 is the utility model coiling installation diagram

Fig. 7 is aluminium row structural representation;

In figure, 1 is coil, and 2 is stay, and 3 is bus-bar, and 4 is drawstring, and 5 is flange, and 6 is adhesive tape, and 7 is position-limiting tube, and 8 is screw rod, and 9 is template, and 10 is aluminium row, and 11 is equipotential ring, and 12 is jig, and 13 is winding mould.

Embodiment

Illustrate the utility model below in conjunction with accompanying drawing, as Figure 4-Figure 7, the utility model structure comprises: coil 1, stay 2, drawstring 4, flange 5 etc., the axial two ends of described stay arrange aluminium row 10, described aluminium is arranged 10 arranged outside equipotential ring 11 and flanges 5, and described equipotential ring 11 is non-closed-loop.

Described aluminium row 10 is rectangle.

Adopt like this after structure of the present utility model, position when guaranteeing that aluminium row manufactures and size correct, carrying out (being only the welding of aluminium row 10 and flange 5) after single aluminium row 10 welding, in the time of coiling, each aluminium row 10 is being contained on jig 12, winding mould 13 is adjusted to specified diameter, outside surface, lay a layer paperboard, outside cardboard, after the some strata ester films of laying, reach again the internal diameter size of coil 1, to be equipped with respectively, lower aluminium row's 10 jig 12 is fixed on the both sides of winding mould 13, press on drawing Assurance of Size, lower aluminium row-to-row distance, then after coil winding mould and coil winding machine (can be both horizontal can be also vertical coil winding machine) being connected and fixed, just can carry out coil winding by from the flat, after coil-winding completes, coil and equipment die installation diagram are shown in accompanying drawing 6.For guaranteeing to become one after aluminium row 10 and coil 1 solidify, fixed position in winding process uses drawstring 4 by upper and lower each aluminium row 10 and coil 1 colligation, the mode of colligation adopts Straight pull and spends pull-type (only spending pull-type in outermost layer employing), after coil curing molding, for realizing aluminium row equipotential, weld peripheral equipotential ring 11, and unload winding former 13, jig 12.For avoiding forming circulation phenomenon because 11 sealings of equipotential ring cause aluminium row 10, after coil 1 curing molding, equipotential ring 11 disconnects a place, and making equipotential ring is non-closed-loop.

The utility model is cancelled the core of upper and lower bus-bar coil internal diameter in conventional dry air core reactor structure, makes the upper and lower bus-bar of original entirety make several split aluminium row into; In the time of coiling, the aluminium row of upper and lower each split is fixed by jig, and jig is reliably connected with adjustable coiling die.The utility model manufacturing process is simple, has cancelled original bus-bar welding positioner, has reduced bus-bar adhesion belt binding and the curing process before coiling, has cancelled former winding mould, adopts transformer coiling mould, and versatility is stronger.Can be used for indoor, the outdoor products of dry type hollow series reactor, shunt reactor, filter reactor, smoothing reactor, split reactor equivalent structure.

Claims

1. a Novel dry type hollow electric reactor, comprises coil, stay, drawstring, flange, it is characterized in that: the axial two ends of described stay arrange aluminium row, described aluminium row's arranged outside equipotential ring and flange, and described equipotential ring is non-closed-loop.

2. Novel dry type hollow electric reactor according to claim 1, is characterized in that: described aluminium row is rectangle.