CN2674615Y

CN2674615Y - Coil resin casting device for integrated roll iron core transformer

Info

Publication number: CN2674615Y
Application number: CN 03272561
Authority: CN
Inventors: 钱洪
Original assignee: TIANSHUI CHANGCHENG GENERAL ELECTRICAL APPLIANCE FACTORY
Current assignee: TIANSHUI CHANGCHENG GENERAL ELECTRICAL APPLIANCE FACTORY
Priority date: 2003-06-19
Filing date: 2003-06-19
Publication date: 2005-01-26
Anticipated expiration: 2013-06-19

Abstract

The utility model relates to the coil resin casting device of a transfer, in particular to a coil resin casting device for integrated roll iron core transformer (2000KVA and the following). The coil resin casting device for integrated roll iron core transformer is characterized in that two external molds are sheathed over the outer coil, a panel is connected with the external molds by the screw bolts, and the two ends are provided with a seal rubber plate and the assembly end plates in order; the assembly end plates are connected with each other as one body by a connecting plate and a fastener, the assembly end plates and the seal rubber plate are connected with the preset external molds and an inner mold by four tight draw rods and the screw nuts, and a sealed space which is provided with a sprue on the upper part is formed. The coil resin casting device for integrated roll iron core transformer has the advantages that the problem that the resin can not casted by the coil of the integrated roll iron core transformer is solved, which obtain the effects of high efficiency, energy-saving, environmental protection, low-noise and resistance of adverse environment.

Description

The coil resin cast device of whole reel iron core transformer

Technical field

The utility model relates to a kind of coil resin cast device of transformer, the coil resin cast device of especially whole reel iron core transformer (2000KVA and following).

Background technology

At present, as you know, the coil resin cast device of casting transformer is the casting of single coil, promptly adopts Demountable metallic external mold, end plate, panel, seal and internal mold, and the coil that will cast is sealed in wherein, and being placed on casts in the vacuum forms; The instrument transformer of similar transformer is integral cast, just iron core and coil is cast in together; And existing reel iron core transformer is a blade inserting volume iron core, the coil resin cast device that its coil pouring device is exactly a laminated transformer; There is not whole reel iron core transformer at present, because at present used casting technique can not be with the coil of casting on iron core.Whole reel iron core transformer has laminated transformer or blade inserting transformer, they have unrivaled superiority---ultralow no-load current (reducing more than 50% on year-on-year basis), super low noise (reducing 10-20db on year-on-year basis), low load loss (saving 10% on year-on-year basis), the resin cast coil has protection against the tide, dustproof, non-maintaining, the advantage such as missing of ignition that has an accident again, therefore is subjected to users' such as skyscraper, workplace environment be abominable welcome.

Summary of the invention

Is there a kind of way can use resin cast to its coil again with whole volume iron core? to be solved in the utility model is exactly this difficult problem.The utility model proposes the coil resin cast device of two kinds of whole reel iron core transformers for this reason, can solve the resin cast of whole reel iron core transformer coil well.

The technical scheme that its technical problem that solves the utility model adopts has two:

One. for around the coil of outside (for iron core, as follows), adopt combinable end plate, external mold, seal and panel, with connector they are fixed on the coil outside that will cast, form the casting space that seals with the internal mold that presets, pour into resin from casting gate, just can water resin to this external coil, its key point is exactly the internal mold that adopts combinable end plate, seal and preset;

Two. for coil around inside, adopt combinable end plate, seal, with connector internal mold, the external mold that presets is fixed together, form the casting space that does not leak, resin pours into from set casting gate, just can reach the purpose that this coil casting is gone up resin, its key point is exactly to adopt combinable end plate, seal and external mold that presets and internal mold.

The beneficial effects of the utility model are: thoroughly solved the problem that the coil of whole reel iron core transformer can not casting resin, made this efficient, energy-saving and environmental protection, low noise, the product of anti-adverse environment is achieved again.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is that external coil of the present utility model waters casting die structure figure.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is that Inside coil of the present utility model waters casting die structure figure, and wherein (1) is front view, and (2) are vertical view.

But Fig. 4 is the different profile assembling assumption diagrams of two kinds of assembly unit end plate, and wherein (1) is square endplate figure, and (2) are circular end plate figure.

Fig. 5 is two kinds of different shape assumption diagrams of sealing offset plate, and wherein (1) is the octangle offset plate, and (2) are circular offset plate.

Among the figure, 1 sealing offset plate, 2 external molds, 3 volume iron cores, 4 external coils, 5 internal molds, 6 stays, but 7 assembly unit end plates, 8 Inside coils, 9 cast gates, 10 fastening pull rods and nut, 11 panels, 12 bolts, 13 connecting plates and securing member, 14 fixed heads and bolt, 15 upper sealing panels, 16 upper head plates, 17 rising heads, 18 seams.

Embodiment

Fig. 1, shown in Figure 2 be the resin cast installation drawing of casting external coil, two external molds 2 are enclosed within external coil 4 outsides, panel 11 usefulness bolts 12 are connected with external mold 2, two ends are provided with sealing offset plate 1, but put assembly unit end plate 7 again, but connecting plate and securing member 13 connect into integral body with assembly unit end plate 7, but four fastening pull rods are connected assembly unit end plate 7, sealing offset plate 1 with nut 10 with the external mold 2 that presets, internal mold 5, form a sealed space, the top in this space is provided with cast gate 9.

During use, place it in the vacuum, resin pours into from cast gate 9, reaches the purpose of casting external coil 4.Need to prove: but except assembly unit end plate 7, the sealing offset plate 1 have the bigger improvement, the internal mold 5 that presets is to work as internal mold with thin glass-cloth board around last several circles, this is an inventive improvements, the improper resin cast that makes becomes a reality, simultaneously inter-stage insulation also is of great benefit to, particularly electric pressure is 10 kilovolts or all the more so when above.

Shown in Figure 3 is the resin cast installation drawing of casting Inside coil, but sealing offset plate 1 is provided with assembly unit end plate 7 and upper head plate 16, but assembly unit end plate 7 and upper head plate 16 are connected into integral body separately with connecting plate and securing member 13, but four fastening pull rods and nut 10 couple together assembly unit end plate 7, upper head plate 16 and sealing offset plate 1, upper sealing panel 15 with internal mold 5 that presets and the external mold 2 that presets, form a sealed space, the top in this space is provided with cast gate 9 and rising head 17.

During use, place it in the vacuum, resin pours into from cast gate 9, when rising head 17 overflows, has promptly reached the purpose of casting Inside coil 8 as resin.Need to prove: but except assembly unit end plate 7 and upper head plate 16, sealing offset plate 1, the internal mold 5 that presets and the corresponding component of external coil 4 casting introductions is similar, the external mold 2 that presets in addition is similar to the internal mold 5 that presets, but the casting method of Jie Shaoing is also more rarely seen in resin cast here, because in the middle of the reality, Inside coil 8 upper and lower sides have only little room, resin has no idea to carry out from the upper end casting routinely, the utility model has solved this difficult problem, and the Inside coil resin cast is become a reality.

Among Fig. 4, but assembly unit end plate 7 separated into two parts, splicing place has seam 18, couple together with fixed head and bolt 14 after inserting iron core, make it to become integral body, just profile has relation with the inside and outside coil of casting, but fixing structure is the same, and wherein (1) is for the master of square endplate looks, overlooks, the A amplification; (2) for the master of circular end plate looks, overlooks, A amplifies.

Fig. 5 is the structure of sealing offset plate 1 opening, and interface has seam 18, although profile has relation with the inside and outside coil of casting, fixing structure is the same, and wherein (1) is for the master of octangle offset plate looks, overlooks, the A amplification; (2) for the master of circular shape offset plate looks, overlooks, A amplifies.

Claims

1. the coil resin cast device of a whole reel iron core transformer, it is characterized in that: two outer die casings are the coil outside externally, panel is connected with external mold with bolt, two ends are provided with the sealing offset plate, but put the assembly unit end plate again, but connecting plate and securing member connect into integral body with the assembly unit end plate, but four fastening pull rods are connected assembly unit end plate, sealing offset plate with nut with the external mold that presets, internal mold, form a sealed space, the top in this space is provided with cast gate.

2. the coil resin cast device of appendiron core transformer according to claim 1, it is characterized in that: internal mold that presets and external mold are around forming with the thin insulating coiled sheet.

3. the coil resin cast device of whole reel iron core transformer according to claim 1, it is characterized in that: combinable end plate has seam; Separable fluid sealant strip has seam.

4. the coil resin cast device of a whole reel iron core transformer, it is characterized in that: but the sealing offset plate is provided with assembly unit end plate and upper head plate, but assembly unit end plate and upper head plate are connected into integral body separately with connecting plate and securing member, but four fastening pull rods and nut couple together assembly unit end plate, upper head plate and sealing offset plate, upper sealing panel and the internal mold that presets and the external mold that presets, form a sealed space, the top in this space is provided with cast gate and rising head.

5. the coil resin cast device of whole reel iron core transformer according to claim 4, it is characterized in that: internal mold that presets and external mold are around forming with the thin insulating coiled sheet.

6. the coil resin cast device of whole reel iron core transformer according to claim 4, it is characterized in that: combinable end plate has seam; Separable fluid sealant strip has seam.