CN201796677U

CN201796677U - Transformer shield and transformer with shield

Info

Publication number: CN201796677U
Application number: CN2010202908403U
Authority: CN
Inventors: 钱亚丽
Original assignee: Hangzhou Qiantang River Electric Group Co Ltd
Current assignee: Hangzhou Qiantang River Electric Group Co Ltd
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2011-04-13
Anticipated expiration: 2020-08-06

Abstract

The utility model discloses a transformer shield and a transformer with the shield. The transformer shield comprises a shield body and a shield cover, wherein the shield body is provided with a cylindrical containing chamber used for covering an exposed terminal of the transformer in the containing chamber, the first end of the shield body is fixed on the transformer, the second end of the shield body is connected with the shield cover, the shield body is provided with an opening area used for wiring, and the shield cover is provided with a transparent observation window. The shield can cover high-voltage and low-voltage bushings and buses of the transformer in the internal containing chamber, and can effectively prevent accidents such as power failure, power equipment damage, electric shock and the like caused by phase fault or grounding of various exposed joints due to various reasons, thereby ensuring the safe operation of the electrical equipment.

Description

Transformer protective cover and have the transformer of protective cover

Technical field

The utility model relates to a kind of transformer and protection device thereof, specifically, relates to a kind of transformer that is applied to the transformer protective cover of high and low pressure sleeve pipe and bus and has protective cover.

Background technology

In equipment for power transmission and distribution and circuit, transformer plays an important role.But in the prior art, existing transformer exists safe operation hidden danger usually.This is because the high-low pressure inlet wire of transformer, bus etc. all expose outside, are easy to owing to factor of environmental is out of order.For example, because accident is ironed in the pile crown condensation of transformer turnover line or the filthy sudden strain of a muscle that causes, toys such as birds and beasts are in transformer bay the electric short circuit fault that play causes etc. of dwelling.In addition, some transformer is placed in the biotope, can fall and causes short trouble, child to climb transformer generation electric shock accidents because the resident hangs foreign material or branch.It is very little that above-mentioned hidden danger seems a bit, but can bring no small trouble if take place.In addition, also exist the personal safety problem.

The utility model content

The technical problems to be solved in the utility model is, at the deficiencies in the prior art, a kind of transformer protective cover is provided and has the transformer of protective cover, and under the prerequisite that guarantees the normal operation of transformer, the fail safe when improving operation.

For solving above-mentioned technical problem, the utility model provides a kind of transformer protective cover, comprise cover body and cover cap, described cover body has a tubular containing cavity, be used for the exposed terminal of transformer is covered in the described containing cavity, first end of described cover body is fixed on the transformer, and second end of described cover body is connected with described cover cap, on described cover body, be provided with the aperture area that is used for wiring, on described cover cap, be provided with transparent windows.

The utility model also provides a kind of transformer, comprises the transformer body, and bushing on the transformer body and low-tension bushing are enclosed within respectively in the aforesaid protective cover.

The protective cover that the utility model provides can cover on the high and low pressure sleeve pipe and the bus of transformer in the inner containing cavity, can effectively prevent all kinds of exposed joints for various reasons the power failure, the accidents such as power equipment and electric shock of damaging that cause of (wet sudden strain of a muscle, pollution flashover, the artificially contact of salt fog chemical gas burn into, toy or foreign material are made contact, power stealing etc.) phase fault of causing or ground connection take place, thereby guaranteed the power equipment safety operation.

Description of drawings

Figure 1A is a specific embodiment front view of protective cover described in the utility model;

Figure 1B is the vertical view of a specific embodiment of protective cover shown in Figure 1A;

Fig. 1 C is the end view of a specific embodiment of protective cover shown in Figure 1A;

Fig. 2 is the aperture area STRUCTURE DECOMPOSITION schematic diagram in another specific embodiment of protective cover described in the utility model;

Fig. 3 A is a specific embodiment front view of transformer described in the utility model;

Fig. 3 B is the vertical view of a specific embodiment of transformer shown in Fig. 3 A;

Fig. 3 C is the end view of a specific embodiment of transformer shown in Fig. 3 A;

Fig. 4 A is another specific embodiment front view of transformer described in the utility model;

Fig. 4 B is the vertical view of a specific embodiment of transformer shown in Fig. 4 A;

Fig. 4 C is the end view of a specific embodiment of transformer shown in Fig. 4 A.

Embodiment

As Figure 1A, Figure 1B, shown in Fig. 1 C, be respectively a specific embodiment front view of protective cover described in the utility model, vertical view and end view, described transformer protective cover 1 comprises cover body 11 and cover cap 12, described cover body 11 has a tubular containing cavity 13, be used for the exposed terminal 20 (referring to Fig. 3 A) of transformer is covered in the described containing cavity 13, first end of described cover body 11 is used for fixing on transformer 2 (referring to Fig. 3 A) body, second end of described cover body 11 is connected with described cover cap 12, on described cover body 11, be provided with the aperture area 14 that is used for wiring, on described cover cap 12, be provided with transparent windows 15.

Outside having, second end of described cover body 11 turns edge 16, described outer turning edge is provided with the connecting hole (not shown), the edge 17 of described cover cap 12 is provided with connecting hole 18, the link (as bolt, nut) of the connecting hole 18 at the edge 17 by piercing into described cover cap and the connecting hole on 16 that turns edge outward with as described in cover cap 12 with as described in cover body 11 couple together.

About the connected mode of cover cap 12 with described cover body 11, include but not limited to this connected mode, can adopt any connected mode of the prior art, as buckle structure, chute structure etc.

Described transparent windows 15 is arranged on the central authorities of cover cap 12, and is a rectangular shape.Described transparent windows 15 can be made of poly (methyl methacrylate) plate, by described transparent windows 15, can clearly observe the terminal situation of the transformer in the protective cover.

Aperture area 14 is used for the perforate when using transformer to carry out wiring for the user.This aperture area 14 can be the part of cover body 11 bodies, can be such structure also: referring to Fig. 2, on cover body 11 bodies, offer an opening 111, cover described opening 111 by an aluminium sheet 112, described aluminium sheet 112 is connected with described cover body 11, ways of connecting can be modes such as welding, riveted joint, bolt connection, buckle connection, chute connection, when aperture area 14 adopts the such structure of openings 111 and aluminium sheet 112, referring to the exploded view of opening shown in Figure 2 111 and aluminium sheet 112.

In the above-described embodiments, described cover body 11 is a tetragonal body shape, and described opening 111 and aluminium sheet 112 are located on the side surface of cover body 11 of described tetragonal body shape.Certainly, can cover on wherein by the terminal that transformer is exposed, can adopt any three-dimensional shape as long as described cover body 11 has satisfied its inner containing cavity.

Fig. 3 A, 3B and 3C are respectively specific embodiment front view, vertical view and an end view of transformer described in the utility model.Wherein, the transformer adopting among above-mentioned Fig. 3 A, 3B and the 3C the simple technique of painting, be intended to outstanding emphasis structure of the present utility model, also do not comprise elements such as various devices in the existing transformer, accessory but do not get rid of described transformer.

Shown in Fig. 3 A, 3B and 3C, described transformer 2 comprises transformer body 21 and two protective covers 1, and bushing 22 and low-tension bushing 23 on the transformer body 21 are enclosed within respectively in the protective cover 1.

Transformer body 21 also comprises other accessories such as base 211, device body reinforcement 212 and boom hoisting 213.

In Fig. 3 A, 3B and 3C, be provided with aperture area 14 at described cover body 11, be that the user is used for punching to the terminal connections in the protective cover time.

Shown in Fig. 4 A, 4B and 4C, be another specific embodiment of transformer 2 described in the utility model, in this embodiment, described transformer body 21 also includes fin 214.In the present embodiment, the cover body 11 of described protective cover 1 is a tetragonal body shape, and described opening 111 and aluminium sheet 112 are located on the lower surface of cover body of described tetragonal body shape.

Because the material of described aluminium sheet 112 is softer, therefore, when the user carries out wiring, can punching on described aluminium sheet 112 very like a cork.

In sum, in the utility model, described protective roof structure is simple, has cable and introduces the interface (being aperture area or opening and the aluminium sheet on the cover body) that (advancing down), cable are drawn (going out down), has satisfied user's wiring demand.In use, only need to get final product on common transformer tank wall, connecting this protective cover, installation and use are all very convenient, because high-low pressure sleeve pipe, bus etc. all are placed in the protective cover, thereby avoided in the prior art because the exposed safety problem of bringing of terminal.

It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, those of ordinary skill in the art is to be understood that, still can make amendment and be equal to replacement the technical solution of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. transformer protective cover, it is characterized in that, comprise cover body and cover cap, described cover body has a tubular containing cavity, be used for the exposed terminal of transformer is covered in the described containing cavity, first end of described cover body is fixed on the transformer, and second end of described cover body is connected with described cover cap, on described cover body, be provided with the aperture area that is used for wiring, on described cover cap, be provided with transparent windows.

2. transformer protective cover according to claim 1, it is characterized in that, second end of described cover body has outer turning edge, described outer turning edge is provided with connecting hole, the edge of described cover cap is provided with connecting hole, the connecting hole at the edge by piercing into described cover cap and turn edge outward on the link of connecting hole described cover cap and described cover body are coupled together.

3. transformer protective cover according to claim 1 is characterized in that, described transparent windows be shaped as rectangle.

4. according to the arbitrary described transformer protective cover of claim 1-3, it is characterized in that described transparent windows is made of poly (methyl methacrylate) plate.

5. according to the arbitrary described transformer protective cover of claim 1-3, it is characterized in that described aperture area is an opening, covers described opening by an aluminium sheet, described aluminium sheet is fixedlyed connected with described cover body.

6. transformer protective cover according to claim 5 is characterized in that, described cover body is a tetragonal body shape, and described opening and aluminium sheet are located on the side surface of cover body of described tetragonal body shape.

7. a transformer comprises the transformer body, it is characterized in that, bushing on the transformer body and low-tension bushing are enclosed within respectively in the arbitrary described protective cover of claim 1-6.

8. transformer according to claim 7 is characterized in that, the cover body of described protective cover is a tetragonal body shape, and described opening and aluminium sheet are located on the lower surface of cover body of described tetragonal body shape.