KR200428263Y1 - Coil supporting frame structure for transformer - Google Patents

Abstract

The present invention relates to a coil support frame structure for a transformer, and more particularly, in a coil support frame structure for a transformer consisting of an upper frame, a lower frame, and both frames to fix a transformer coil in which a transformer coil is wound on a transformer core. And a transformer for dividing the transformer core wound around the transformer coil into a pair of front and rear cores, a coil internal support at both sides of the transformer coil, and a coil central support at the center of the transformer coil. Core support part formed of upper and lower core support blocks which are in surface contact with the upper, lower, front and rear sides of the transformer core so as to fix the support part and the upper and lower sides of the transformer core to which the coil coil supported by the coil support part is wound. And fixed to both sides of the transformer device which is fixed by the core support part and the coil support part. A pair of both sides of the frame formed in the upper and lower front and rear to form a coupling hole on both sides of the upper and lower sides, and inwardly formed a support piece in contact with the front, rear and center of the transformer core inwardly; The upper and lower receiving parts are formed inward to fix the upper and lower parts of the transformer in which the side frame is fixed, and in the front and rear, a pair of upper and lower fixing pieces are formed at positions corresponding to the coupling pieces of the side frame. The lower both sides are characterized by consisting of an upper frame, a lower frame forming an upper, lower fixing hole.

Description

Coil Support Frame Structure for Transformers {FRAME STRUCUTURE FOR TRANSFORMER}

1 is a perspective view showing a coil support frame for a conventional transformer,

2 is a perspective view of a conventional coil support frame for a transformer is applied,

3 is an exploded perspective view showing a coil support frame structure for a transformer according to the present invention;

Figure 4 is an assembled perspective view showing a coil support frame structure for a transformer according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: transformer core 20: transformer coil

30: transformer 40: upper frame

50: lower frame 60: both sides frame

70 coil support 80 core support

The present invention relates to a coil support frame structure for a transformer, and more specifically, a plurality of supports formed of flat iron having a large cross-sectional coefficient inside and outside the core after dividing the core of the transformer consisting of the transformer core and the transformer coil into two parts. By installing a plate to withstand the electromechanical force in the event of a short circuit, and maintains the coiling state of the transformer coil to prevent power loss, and also to the coil support frame structure for the transformer that can safely receive power.

In general, various types of transformers are provided, such as power transformers connected to transmission and distribution lines and coupling transformers used in electronic circuits.

Among these transformers, the power transformer is a transformer that can change any voltage applied to the AC circuit to a higher or lower voltage, and the power does not change. There is a coil-type transformer in which two coils are wound.

In the transformer as described above, the core and the coil were fixed to the frame in order to prevent deformation of the core and the coil and to withstand mechanical strength in the event of a short circuit.

This conventional typical coil support frame structure for a transformer is shown in FIGS.

1 to 2, the member number 1 indicates a coil, 2 indicates a core, 3 indicates an upper frame, 4 indicates a lower frame, and 5 indicates an upper and lower fastening bolt.

As shown therein, the primary and secondary coils 1 are wrapped in the cores 2 and fixed to the upper and lower fastening bolts 5 while the upper and lower frames 3 and 4 are covered with the transformer cores 2.

However, the above frame structure is vulnerable to the horizontal upward force and vertical force of the electromechanical force in the event of short circuit, and to compensate for this, the coil has been impregnated with the varnish to improve the durability of the coil. As the cooling passage narrowed, it caused the temperature rise of the coil and also reduced the insulation strength of the insulator.

In addition, there was a problem that the environmental pollution and workability is lowered due to the toxicity of the varnish.

In order to solve the above problems, various coil supporting frame structures for eliminating varnish impregnation have been provided.

Among the coil support frame structures for transformers, the transformer coil frame of Patent Registration No. 381900 forms a bent portion that is bent to the inner surface on both sides so that the field core can be seated, and has fixing parts formed with bolt holes on both sides of the bent portion. The upper and lower frames, which are coupled to both ends of the bent portion of the upper and lower frames, are continuously connected to both sides of the upper and lower frames so as to support the side of the field core and support the end plate, and bend rigidity. The side frame is formed of a "b" type angle and has a support bar having a bolt hole in the upper and lower ends, and provided between the outer surface of the transcoil and the inner surface of the field coil core, which is provided inside the side frame and fitted into the field iron core. It includes an end plate interposed to support the deformation of the winding state by the pressing force of the frame is prevented It is the configuration.

However, the frame structure as described above is fixed to both sides of the upper, lower frame and the side frame with the bolt and the end plate is fixed to both sides of the transcoil, so it is vulnerable to the horizontal force in the front and rear, and also the vertical force There was a vulnerable problem.

In addition, the transformer structure of the column transformer is a frame structure that is applied to the internal steel transformer, even if it is applied to an external steel transformer, due to the frame structure fixing only both sides, it is also applied to the front and rear There is a problem in that the structure is complicated and vulnerable to heat by using a plurality of support members as well as being vulnerable to the horizontal force.

On the other hand, Utility Model Registration No. 371249 Transformer coil frame is a frame structure for fixing by inserting a support on the inner surface of the upper and lower frames, fixing only the outside of the magnetic field core to vary the load applied in each direction when the current is short-circuited. There was a problem that can not be distributed.

Therefore, the frame structures as described above only correspond to the vertical mechanical force and the horizontal mechanical force applied to both sides, and did not correspond to various mechanical forces.

The present invention has been devised in view of the above-mentioned problems of the prior art, and after dividing the core of the transformer consisting of the transformer core and the transformer coil into two sides, a plurality of support plates are installed inside and outside the transformer core, and the transformer It is an object of the present invention to provide a coil support frame structure for transformers that can insert internal coil supports to coils to cope with internal and external condensing forces and to cope with vertical and horizontal mechanical forces.

In order to achieve the above object, the present invention provides a coil support frame structure for a transformer composed of an upper frame, a lower frame, and a side frame to fix a transformer in which a transformer coil is wound on a transformer core. A transformer unit for dividing the transformer core into a pair of front and rear cores; a coil support unit having a coil internal support at both sides of the transformer coil; and a coil support at the center of the transformer coil; and the coil support. A core support part formed of upper and lower core support blocks which are in surface contact with the front, rear, and center of the upper and lower sides of the transformer core so as to fix the upper and lower sides of the transformer core wound by the transformer coil, and the core support part and the coil. Up, down, front and rear to fix on both sides of the transformer A pair of both side frames which form a furnace coupling piece, and a coupling hole on both sides of the upper and lower sides, and protrude inwardly a support piece that is in contact with the front, rear, and center of the transformer core inward, and the side frame is fixed The upper and lower parts of the device are built into the upper and lower receiving parts to be fixed inwards, and a pair of upper and lower fixing pieces are formed at positions corresponding to the engaging pieces of the side frames in the front and rear sides, and the upper and lower sides are upper and lower sides. It provides a coil support frame structure for the transformer, characterized in that the upper and lower frames formed with a fixing hole.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention as described above in detail as follows.

3 is an exploded perspective view showing a coil support frame structure for a transformer according to the present invention, Figure 4 is an assembled perspective view showing a coil support frame structure for a transformer according to the present invention.

As shown therein, the coil support frame structure for the transformer of the present invention includes an upper frame 40 and a lower frame 50 to fix the transformer 30 in which the transformer coil 20 is wound on the transformer core 10. It consists of both side frames (60).

The coil support frame structure for a transformer configured as described above divides the transformer core 10 on which the transformer coil 20 is wound in the transformer device 30 into a front rear pair of cores, that is, four cores.

The coil support unit 70 is formed in the transformer coil 20 wound around the divided transformer core 10 to correspond to the internal condensation force of the transformer coil 20.

The coil support unit 70 as described above has a coil internal support 71 having a "C" shape on both sides of the transformer coil 70 and a coil central support 72 at the center of the transformer coil 20. do.

The core support part 80 is formed to fix the upper and lower sides of the transformer core 10 to which the transformer coil 20 supported by the coil support part 70 is wound, but the core support part 80 is a transformer core 10. The upper and lower core support blocks 81 and 82 of the plate are formed so as to be in surface contact with the front, rear, and center of the upper and lower sides of the panel.

In addition, both side frame portions 60 are formed to be fixed to both sides of the transformer 30 which is fixed by the core support 80 and the coil support 70.

The two side frame portion 60 as described above forms a coupling piece 61 in the upper and lower sides front and rear and the coupling hole 62 on both sides of the upper and lower sides and in the front, rear and center of the transformer core 10 inside. The support piece 63 which contacts surface is protruded inwardly.

The upper frame 40 and the lower frame 50 are formed such that the side frame 60 is fixed by embedding the upper and lower portions of the transformer 30 to which the side frame 60 is fixed.

Upper and lower receiving parts 41 and 51 are formed inside the upper frame 40 and the lower frame 50 as described above, and are positioned at positions corresponding to the engaging pieces 61 of the side frame 60 in the front and rear sides. A pair of upper and lower fixing pieces 42 and 52 are formed, and upper and lower fixing sides 44 and 54 are formed as upper and lower side surfaces 43.53.

Referring to the operation and effects of the present invention configured as described above are as follows.

First, the transformer coil 20 is wound around a pair of transformer cores 10 bisected forward and backward to form a transformer 30, and then the varnish impregnation process performed to cope with electromechanical force is omitted, and the upper and lower frames ( The coil supporting frame structure for the transformer is assembled by 40.50), both side frames 60, the coil support part 70, and the core support part 80 to cope with internal and external condensing forces and to cope with vertical and horizontal mechanical forces.

In the transformer coil 20 of the transformer device 30 as described above, a pair of internal coils 71 are built into both sides of the transformer coil 20, and a central coil 72 of the coils is built into the center of the transformer coil 20. To respond.

In this state, the upper and lower core support blocks 81 and the lower core support blocks 82 of the core support unit 80 are moved to the upper and lower front and lower sides of the transformer core 10. It is possible to cope with the horizontal mechanical force in front by fixing the surface contact with the rear and the center.

In the assembled state, the three support pieces 63 formed on both sides of the frame 60 on the side of the transformer 30 are inserted into the center of both sides of the transformer core 10 and are formed to surround the room before and after. do.

The upper and lower parts of the transformer 30 assembled as described above are assembled to be accommodated in the accommodation portions 41 and 51 of the upper and lower frames 40 and 50.

The transformer unit assembled as described above corresponds to the upper and lower fixing pieces 42 and 52 formed on the upper and lower frames 40 and 50 of the coupling pieces 61 formed on both side frames 60 and the coupling holes 62. ) Is fixed by bolts (B) in accordance with the fixing holes (44,54) formed on both sides (43,53) and built in the enclosure filled with the cooling oil as in the prior art to produce a transformer.

The transformer assembled as described above may correspond to the internal condensation force and to the vertical and horizontal mechanical forces without the precipitation of the varnish.

As described above, the present invention divides the transformer core appropriately in the width direction according to the capacity of the transformer, and bolts the coil support part, the core support part and the frame part forward and backward and on both sides so that the mechanical strength of the transformer coil is not released during a short circuit. It is possible to improve productivity because the assembly core is excellent even if the transformer core is enlarged, and the frame structure is not stressed by the transformer core to minimize the iron loss, increase the transformer efficiency and prevent the temperature rise by expanding the cooling passages of the core and coil. And it is possible to omit the varnish-impregnated working process has the effect of improving the working environment and prevention of environmental pollution, etc. While the present invention has been shown and described as a specific preferred embodiment, the present invention is not limited to the above embodiment Within the spirit of the present invention Various changes and modifications may be made by those skilled in the art to which the invention pertains.

Claims (1)

In order to fix the transformer 30 in which the transformer coil 20 is wound on the transformer core 10, a coil support frame structure for a transformer composed of an upper frame 40, a lower frame 50, and both side frames 60 is provided. In A transformer 30 for dividing the transformer core 10 wound around the transformer coil 20 into a pair of front and rear cores, A coil support part 70 having a coil inner support 71 on both sides of the transformer coil 20 of the transformer device 20 and a coil central support 72 at the center of the transformer coil 20; Upper and lower surface contact with the upper, lower, front and rear sides of the transformer core 10 so as to fix the upper and lower sides of the transformer core 10 to which the transformer coil 20 supported by the coil support unit 70 is wound. A core support part 80 formed of core support blocks 81 and 82, Coupling pieces 61 are formed on the upper and lower sides front and rear to be fixed to both sides of the transformer 30 fixed by the core support part 80 and the coil support part 70. A pair of both side frames 60 formed inwardly and protruding inwardly with a support piece 63 in contact with the front, rear and center of the transformer core 10; The upper and lower accommodating parts 41 and 51 are formed inward to fix the upper and lower parts of the transformer 30 in which the side frame 60 is fixed, and the coupling piece of the side frame 60 is moved forward and backward ( The upper and lower frames 40 having a pair of upper and lower fixing pieces 42 and 52 formed at positions corresponding to 61 and upper and lower fixing holes 44 and 54 are formed as upper and lower side surfaces 43.53. Coil support frame structure for a transformer, characterized in that consisting of.

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