CN2893884Y - Energy-saving water-cooling iron core for intermediate frequency transformer - Google Patents

Abstract

The utility model provides an energy-economized type water-cooling iron core of medium frequency transformer which eliminates the disadvantages that the fixing holes occupy most of the cross section of the whole iron core. An upper and a lower fixing holes are arranged respectively on the upper part and the lower part of the iron core in the center of the waterpipe-jointing-sheet-copper type radiator of the main body of the transformer iron core, and are not on the main magnetic circuit. The waterpipe-jointing-sheet-copper type radiator and a silicon steel sheet are connected to the main body of the iron core and the iron core pole by connecting screws through two fixing holes. The utility model has a novel structure and has the advantages of allowing less amount of fixing holes which are fixed in the iron core and are not arranged on the main magnetic circuit, providing higher magnetic conductivity and lower magnetic resistance of the iron core, ensuring higher conduction efficiency of electric energy, economizing electric energy, minimizing heat productivity of the iron core in operation and maximizing service life of the transformer, and thereby is applicable to various kinds of medium frequency transformers.

Description

The energy-saving water cold type iron core of intermediate frequency transformer

Technical field

The utility model relates to a kind of parts of power transformer, and concrete is a kind of water-cooled iron core of intermediate frequency transformer.

Background technology

Along with advancing by leaps and bounds and the raising day by day of living standards of the people of national economy, electricity needs is also being increased gradually, so the power-saving technology of power equipment also needs continuous development and progress.In known technology, the water-cooled mechanism of existing intermediate frequency transformer iron core adopts the waterpipe type water-cooling structure, water pipe weldering in being installed in iron core connects the copper coin folder and is connected in the middle of the silicon steel sheet of iron core, the silicon steel sheet heat that produces that is in operation passes to water pipe to heat by copper coin, by the water that flows in the water pipe heat is carried away, reach the purpose of heat radiation.But because existing transformer core water pipe water-cooled mechanism carries out internal fixation at least 6 ~ 8 fixing holes of core interior setting, fixing hole just occupied whole core section long-pending more than 9%, because fixing hole is many and account for again on the position of main magnetic circuit, make iron core magnetic resistance strengthen, the conduction efficiency of electric energy reduces, and causes waste of electric energy, limit by its structure, serious in iron core heating in service, thus cause transformer to reduce useful life.

Summary of the invention

In order to overcome the deficiency of prior art, the utility model provides a kind of fixing hole that solves to occupy the long-pending big problem of whole core section, make it have novel structure, and the fixing hole that makes the iron core internal fixation is few and be not located on the main magnetic circuit, the unimpeded magnetic resistance of iron core magnetic conduction is little, and the conduction efficiency height of electric energy is saved electric energy, iron core caloric value in service is little, the new-type transformer water-cooled iron core of transformer long service life.

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

A kind of energy-saving water cold type iron core of intermediate frequency transformer, it is provided with the iron core main body, water pipe connection copper sheet type radiator, fixing hole, silicon steel sheet, iron core column, guaranteeing under the fastening mechanical strength of iron core, water pipe connection copper sheet type radiator middle part in the transformer core main body is positioned on the iron core, upper/lower positions is shaped on one respectively and goes up fixing hole and a lower fixed hole, make whole iron core that two internal fixation holes only are set, and these two fixing holes are not on main magnetic circuit, wear to connect by two fixing holes and connect screw and water pipe is joined copper sheet type radiator and silicon steel sheet and iron core and iron core column be connected as a single entity the novel transformer water-cooled iron core that consists of.

Because technique scheme has been adopted in the utility model design, effectively solve fixing hole and occupied the long-pending big problem of whole core section, show through testing result on trial for several times, it compared with prior art, have novel structure, design innovation, core section is long-pending big, the internal fixation hole of iron core is few, and be not located on the main magnetic circuit, the magnetic conduction of iron core is unimpeded, magnetic resistance is little, has improved the conduction efficiency of electric energy greatly, saves electric energy, iron core caloric value in service is little, the transformer long service life, simplified manufacturing process, advantages such as cost reduction, being applicable to various intermediate frequency transformer, is a kind of novel intermediate frequency transformer water-cooled iron core.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model embodiment concrete structure figure.

Fig. 2 is the left view of Fig. 1 embodiment.

Fig. 3 is the vertical view of Fig. 1 embodiment.

Each label is among the figure: 1 iron core main body, 2 water pipes connection copper sheet type radiator, fixing hole on 3,4 lower fixed holes, 5 silicon steel sheets, 6 iron core column, 7 insulation cushions.

Embodiment

As accompanying drawing 1, Fig. 2, embodiment illustrated in fig. 3, the utility model comprises iron core main body 1, water pipe connection copper sheet type radiator 2, fixing hole 3-4, silicon steel sheet 5, iron core column 6, be positioned at the iron core upper and lower position at the middle part of iron core main body 1 water pipe connection copper sheet type radiator 2 and be shaped on fixing hole 3 and a lower fixed hole 4 on one respectively, wear to connect by two fixing hole 3-4 and connect that screw joins copper sheet type radiator 2 with water pipe and silicon steel sheet 5 is connected as a single entity with iron core main body 1 and iron core column 6.

Referring to accompanying drawing 1 embodiment, in order to strengthen the insulation degree of iron core and coil, the utility model also is fitted with cross section in the top and bottom of iron core column 6 be trapezoidal insulation cushion 7, and insulation cushion 7 is up big and down small installings, and effectively dust protection falls into the inside and outside both sides of insulation cushion.

Claims (2)

1, a kind of energy-saving water cold type iron core of intermediate frequency transformer, it is provided with iron core main body, water pipe connection copper sheet type radiator, fixing hole, silicon steel sheet, iron core column, it is characterized in that, the water pipe of iron core main body (1) connection copper sheet type radiator-type radiator (2) is shaped on fixing hole on (3) and a lower fixed hole (4) respectively being positioned at the iron core upper and lower position, connects screw by two fixing holes (3-4) company of wearing and water pipe is joined copper sheet type radiator (2) and silicon steel sheet (5) and iron core main body (1) and iron core column (6) is connected as a single entity.

2, the energy-saving water cold type iron core of intermediate frequency transformer according to claim 1 is characterized in that, it is trapezoidal insulation cushion (7) that the top and bottom of iron core column (6) also are fitted with cross section.