CN202473538U

CN202473538U - Transformer iron core

Info

Publication number: CN202473538U
Application number: CN2012200714332U
Authority: CN
Inventors: 徐九君
Original assignee: SHANDONG TEWEI TRANSFORMER PLANT
Current assignee: SHANDONG TEWEI TRANSFORMER PLANT
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-10-03
Anticipated expiration: 2022-02-28

Abstract

The utility model discloses a transformer iron core, and relates to the technical field of transformer equipment. The transformer iron core comprises an upper yoke and a lower yoke which are arranged in parallel; an iron core post is arranged between the upper yoke and the lower yoke; two ends of the iron core post are respectively fixedly connected with the upper yoke and the lower yoke; and the cross section of the iron core post is arranged to be elliptical. According to the utility model, the no-load loss of a transformer can be reduced, also raw materials are saved, the volume and the weight of the transformer are reduced, and the production cost is lowered.

Description

Transformer core

Technical field

The utility model relates to the transformer equipment technical field, particularly a kind of transformer core.

Background technology

Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and it has a public iron core and the several windings crosslinked with it, and the locus between them is constant.When some windings when power supply is accepted AC energy, through the inductance magnetisation, magnetic electromagnetic induction principle induced electricity changes voltage, on remaining winding with same frequency, different voltage transmission AC energies.Transformer core is as the magnetic circuit part of transformer; The normal operation of transformer is played a part very important, mostly the cross section of the iron core column part of present employed transformer core is circular or square, and the consumption of the iron core yoke material of this kind structure is many; Production cost; And make that also the no-load loss of transformer is big, make that the operating cost of transformer is high, useful life is short.

The utility model content

The utility model purpose is in order to overcome above-mentioned deficiency, provide a kind of production cost low, make transformer noload losses little, the transformer core of long service life.

For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of transformer core; Comprise the last yoke and the lower yoke that laterally arrange; Described going up between yoke and the lower yoke is provided with iron core column, and the two ends of said iron core column are fixedly connected said yoke and the lower yoke gone up respectively, and the cross section of said iron core column is made as ellipse.

As a kind of improvement, described upward yoke, lower yoke are formed by stacking by the different silicon steel sheet of some width with iron core column.

The beneficial effect of the utility model is: because the said transformer core of the utility model comprises last yoke and the lower yoke that laterally arranges; Described going up between yoke and the lower yoke is provided with iron core column, and the two ends of said iron core column are fixedly connected said yoke and the lower yoke gone up respectively, and the cross section of said iron core column is made as ellipse; Make the length of yoke shorten; Practice thrift raw material, reduced production cost, alleviated the weight of said iron core; And reduced the no-load loss of transformer.

Because described upward yoke, lower yoke are formed by stacking by the different silicon steel sheet of some width with iron core column; Silicon steel sheet can produce bigger magnetic flux density in hot-wire coil, therefore can dwindle the volume and weight of transformer greatly as the iron core of transformer with silicon steel sheet.

In sum, the utility model can reduce the no-load loss of transformer, and has practiced thrift raw material, has reduced the volume and weight of transformer, has reduced production cost.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is an A-A line profile among Fig. 1;

Fig. 3 is the structural representation of the utility model embodiment two;

Among the figure: 1, go up yoke, 2, lower yoke, 3, iron core column.

Embodiment

Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.

Embodiment one:

Shown in Fig. 1 and Fig. 2 are common; A kind of transformer core; Comprise the last yoke 1 and lower yoke 2 that laterally arrange; Described going up between yoke 1 and the lower yoke 2 is provided with iron core column 3, and iron core column 3 is provided with three altogether, and the two ends of said three iron core column 3 are fixedly connected said yoke 1 and the lower yoke 2 gone up respectively; The two ends that are positioned at the iron core column 3 of head end are connected with the end of a same side of last yoke 1 and lower yoke 2 respectively; The two ends that are positioned at the iron core column 3 of tail end are connected with the end of last yoke 1 and another same side of lower yoke 2 respectively, and the iron core column 3 that is arranged on the centre position equates that with two iron core column that are arranged on head end and tail end, 3 distances the cross section of said iron core column 3 is made as ellipse.Make the length of yoke shorten, practiced thrift raw material, reduced production cost, alleviated the weight of said iron core; And reduced the no-load loss of transformer.

Described upward yoke, lower yoke are formed by stacking by the different silicon steel sheet of some width with iron core column; The width of silicon steel sheet that is positioned at the innermost layer is the wideest; The width that is positioned at the silicon steel sheet of its both sides successively decreases successively; The width that is positioned at outermost two silicon steel sheets is minimum, and silicon steel sheet can produce bigger magnetic flux density in hot-wire coil, therefore can dwindle the volume and weight of transformer greatly as the iron core of transformer with silicon steel sheet.

Embodiment two:

As shown in Figure 3, a kind of transformer core, its structure and embodiment one are basic identical, and its difference is that iron core column 3 is provided with two, and described two iron core column 3 are separately positioned on the two ends of yoke 1 and lower yoke 2.

The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection range of the utility model.

Claims

1. transformer core; Comprise the last yoke and the lower yoke that laterally arrange; Described going up between yoke and the lower yoke is provided with iron core column, and the two ends of said iron core column are fixedly connected said yoke and the lower yoke gone up respectively, and it is characterized in that: the cross section of said iron core column is made as ellipse.

2. transformer core according to claim 1 is characterized in that: described upward yoke, lower yoke are formed by stacking by the different silicon steel sheet of some width with iron core column.