CN201465730U

CN201465730U - transformer

Info

Publication number: CN201465730U
Application number: CN2009200454761U
Authority: CN
Inventors: 鄂春香
Original assignee: China Electric Equipment Group Co Ltd
Current assignee: China Electric Equipment Group Co Ltd
Priority date: 2009-05-19
Filing date: 2009-05-19
Publication date: 2010-05-12
Anticipated expiration: 2019-05-19

Abstract

The utility model discloses a transformer which comprises a bottom pin, an iron core, an iron core clamp and a coil, wherein the iron core, the iron core clamp and the coil are installed on the bottom pin. The transformer is characterized in that the section of the iron core is in a long circular shape, and the section of the coil wound on the iron core is also in a long circular shape; and the long circular shape is formed by overlying a rectangle and two semi-circles on the opposite sides of the rectangle. Compared with the prior art, the space utilization ratio of the transformer is improved after the iron core and the coil in the long circular section structures are adopted, and the width of an iron core window of the transformer and the height of the iron core are directly reduced; compared with the circular iron core with the same sectional area, the weight of the iron core of the whole transformer can be reduced by more than 10 percent, and the manufacture cost can be reduced by 5-8 percent; and meanwhile, the utility model can reduce the no-load loss and no-load current of the transformer and the running cost of the transformer, saves energy sources and has favorable economic benefits.

Description

A kind of transformer

Technical field

The utility model design is applicable to that 35kV and following voltage, capacity are in 4000kVA and following transformer production manufacturing.

Background technology

35kV of Sheng Chaning and following voltage, capacity were at 4000kVA and following transformer in the past, iron core and coil substantially all are the structures that adopts circular cross-section, as shown in Figure 3, the sub-circular that iron core is formed by multistage ladder lamination stack, idle space between the adjacent windings of this infrastructure product is bigger, the space activity coefficient is not high, directly increased manufactured materials, the cost height, the volume of product greatly also can cause the no-load loss of transformer itself big in addition, transformer has consumed the more energy when operation, reduced efficient.

Summary of the invention

Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of loss that reduces circuit is provided, and can improve the transformer of the power factor of equipment.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of transformer, comprise footing, iron core, iron core folder and coil, described iron core, iron core folder and coil are installed on the footing, it is characterized in that: the cross sectional shape of described iron core is a Long Circle, and the described cross section that is wound on the coil on the iron core also is oblong.

Described Long Circle is formed by stacking by rectangle and the semicircle on two opposite side of rectangle.

Compared with prior art, the game effect that the utlity model has is: the utility model transformer adopting long round section iron core and loop construction transformer can improve the space availability ratio of product, and can reduce the iron core height and the length of transformer, reduce the use amount of transformer main material silicon steel sheet and copper (or aluminium), directly reduce manufacturing cost, and the no-load loss of equipment is reduced, improve the efficient of operation, can also reduce the no-load current of equipment, help reducing the loss of circuit, and can improve the power factor of equipment, save the operating cost and the energy.After adopting the iron core and coil of long round section structure, the space availability ratio of transformer is improved, directly make the reduced height of the width and the iron core of transformer core window, when comparing with the circular iron core that same cross-sectional is amassed, the weight of whole transformer core can reduce more than 10%, manufactures instinct and reduces 5-8%, can also reduce simultaneously the no-load loss and the no-load current of transformer, reduce the operating cost of transformer, saved the energy, have good economic benefit.

Description of drawings

Fig. 1 is the structural representation of the utility model transformer.

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

Fig. 3 is the structural representation of prior art transformer.

Wherein:

1, the iron core 3 of long round section coil 2, long round section semi-circular portion, the iron core 4 of long round section rectangle part, folder

11, circular cross-section coil 12, circular cross-section iron core 13, folder 14, footing

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated.

As Fig. 1, shown in Figure 2, a kind of transformer, comprise footing 5, the Long Circle iron core, this Long Circle iron core has rectangle part 4 and two semicircular iron cores 2 to be formed by stacking, in the both sides of iron core folder 3 is set, the corresponding to coil 1 of coiling and core configuration on iron core, the utility model Long Circle iron core, be on the basis of original sub-circular, the thickness of main to be thickeied according to certain size, in the middle of forming is that the rectangle both sides are core sections of approximate half-circular, and the coil of transformer is also produced according to the shape of iron core, and forming with it can close-fitting oblong cross section structure.During design of transformer, guaranteeing under the situation identical with original circular configuration sectional area, can select littler round diameter to cooperate with rectangle part, the width of the stem of transformer and last lower yoke just can diminish like this, make the iron core window width of transformer and highly lower, use silicon steel sheet weight just can reduce, saved manufactured materials.

Claims

1. transformer, comprise footing (5), iron core, iron core folder (3) and coil (1), described iron core, iron core folder (3) and coil (1) are installed on the footing (5), it is characterized in that: the cross sectional shape of described iron core is a Long Circle, and the described cross section that is wound on the coil (1) on the iron core also is oblong.

2. transformer according to claim 1 is characterized in that; Described Long Circle iron core is formed by stacking by rectangle (4) and the semicircle (2) on two opposite side of rectangle.