SU1141461A1 - Induction device - Google Patents

Abstract

An induction apparatus containing a magnetic core, on the rods of which there are windings, clamping plates located between the magnetic cores and the winding, upper and lower bar beams, studded by studs, characterized in that, in order to reduce material intensity, improve cooling conditions, clamp the chshastin is made with corrugations along the height of the winding with smooth gatherings, forming a channel for cooling, and with extrusions in the form of truncated pyramids at their joints with the lifting beams, also made with extrusions in the form of truncated pyramids, with the vydavka clamping plate is located in the extension of the beam of the beam.

Description

4i ed 1i The invention relates to the electrical industry and is intended for use in transformers. An induction device is known in which the pressing of the core of the magnetic wire and the wedging of the windings is carried out by means of a clamping plate connecting the upper and lower bar beams and strips of insulating material wedging the winding and the core of the G-H. However, this device does not provide the quality of tightening during long-term operation. due to the shrinkage of the slats, as well as variations in size due to the individuality of production of each slat. The disadvantages of this device are the high costs of electrically insulating materials and the high labor intensity of manufacturing; Also known is a transformer, containing a magnetic conductor, on the rods of which there are windings, clamping plates located between the rods of the magnetic conductor and the winding. The clamping plates are made with tubular mandrels on which springs are located which enter the guide holes of the winding pressure plates. The tube mandrel has a hole mounted above the spring mounted into which the pull is pulled, which is designed to tension the springs at the time of mounting the windings. After the windings are mounted, the pull pull out and the pressure of the clamping bar with the help of springs unwinds It has a large number of elements - disc washers (springs), a tubular mandrel, a rod, a clamping plate and a clamp bar. The elements have a complex shape require special equipment, laborious in manufacturing and material-intensive materials costs. For low power transformers, where the gap between the package and the coil is small, the device is unacceptable. The purpose of the invention is to reduce the material consumption of ferrous metals and electrical insulating materials, improving cooling conditions by removing heat from the inner surfaces of the coil and the core of the magnetic circuit. The goal is achieved by the fact that in an induction apparatus containing a magnetic core, on the rods of which there are windings, clamping plates located between the cores of the magnetic conductor and the winding, the upper and lower bar beams, studded with studs, the clamping plate is made with corrugations along the height of the winding smooth gatherings, forming a channel for cooling, and with an extrusion 1.1.1 in the form of truncated pyramids at their junction points with chassis beams, also made with truncated pyramid trusses, with an extrusion of a clamping plate Position the pads in the LRG beams. Figure 1 shows a cross section of the active part of the transformer along the core of the magnetic circuit with a device for clamping the cores of the magnetic cores, cracking the coils and connecting the shaft beams of the transformer; Fig. 2 shows a plate for connecting the beam beams, clamping the cores of the magnetic conductor and cracking the coils; on fig.Z - section aa in figure 2; figure 4 - section bb in figure 2. The induction apparatus contains clamping plates 1, and corrugations 2 with smooth gatherings 3, located between winding 4 and the core of the magnetic circuit 5, forming a cooling channel 6, extruding protrusions in the form of truncated pyramids 7, combined with extruders in the form of truncated pyramids 8 on the upper 9 and lower 10 frame beams. Installed between the winding 4 and the core of the magnetic core 5 of the plate 1 with corrugations 2, having smooth convergence 3, compress the magnetic core and fasten the winding 4 on it, forming a cooling channel 6. When assembling the transformer, the protrusions-7 of the plates I enter into the extrusions-depressions 8, forming the connection of the upper 9 and lower 10 frame beams. The use of a device for clamping coils, magnetic cores and connecting the transformer beam beams improves the cooling conditions of the magnetic core and the coil; reduce the consumption of materials} combine in one node the functions of the joints of the union of the beam beams.

311414614

compressing the core of the magnetic circuit and in the manufacture of the elements of the connection of the wedging on it of the coil frame; frame beams and fastening capovysit labor productivity of carcasses.

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Claims (1)

Induction apparatus, containing a magnetic circuit, on the rods of which are windings, clamping plates located between the magnetic cores / rods and the winding, upper and lower yoke beams pulled together by studs, so that In order to reduce material consumption, improve cooling conditions, the clamping plate is made with corrugations along the height of the winding with smooth descents, forming a channel for cooling, and with extrusions in the form of truncated pyramids at their junctions with yoke beams made also with extrusions in the form truncated pyravdd, and the extrusion of the clamping plate is located in the groove of the yoke beam. 1 1141461