KR102160183B1 - Amorphous outdoor transformer and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a high-efficiency amorphous pole transformer with loss and noise reduction and a manufacturing method thereof. More specifically, the high-efficiency amorphous pole transformer impregnates an amorphous core with insulating oil and includes a sag prevention plate for preventing sagging of a lower part of the amorphous core wherein a noise reduction plate with a plurality of resonance holes in a lower part of the transformer to reduce noise is attached to the high-efficiency amorphous pole transformer.

Description

High-efficiency amorphous columnar transformer and its manufacturing method {AMORPHOUS OUTDOOR TRANSFORMER AND MANUFACTURING METHOD THEREOF}

The present invention relates to a high-efficiency amorphous columnar transformer and a manufacturing method thereof, and to a loss and noise reduction type high-efficiency amorphous columnar transformer and a manufacturing method thereof.

In general, an amorphous columnar transformer is a transformer that uses an amorphous alloy called amorphous metal as a core. In the amorphous alloy, the atomic arrangement of the constituent metals is arranged in an irregular state without a long range order. Therefore, since the crystal movement is free and the magnetic flux flow is good, the transformer no-load loss is remarkably low.

In addition, the no-load loss is composed of hysteresis and eddy current losses. Since the amorphous metal has a thickness of only 25 μm, the eddy current loss is remarkably low, so that the total no-load loss can be reduced.

However, despite these advantages, the amorphous column transformer has the following disadvantages.

First, (a) of FIG. 1 is a schematic photograph showing a state in which the amorphous core is broken, and FIGS. 1 (b) and (c) are photographs representing a diagram in which the lower portion of the amorphous core is deformed.

The amorphous columnar transformer has a thin thickness of the amorphous metal, so that the core breaks as shown in Fig. 1(a), and the loss increases due to the reduction in the cross-sectional area of the core, and the core is deformed as shown in Fig. 1(b). The loss increases because the flow becomes irregular. In addition, in the amorphous core, when a certain period of time elapses, the lower portion of the amorphous core sag occurs due to gravity as shown in (c) of FIG. 1. In addition, there is a problem that noise is generated during the power generation (transformation) process due to the characteristics of the transformer.

Therefore, research is underway to solve this problem and make use of the advantages of the amorphous core.

(0001) Domestic registration patent No. 10-1064905 (0002) Domestic registration patent No. 10-1943391

The technical problem to be solved by the present invention is to provide a high-efficiency amorphous columnar transformer manufactured by impregnating an amorphous core in an insulating oil having a certain temperature or higher in order to reduce loss due to breakage of the core, and a manufacturing method thereof.

Another technical problem to be solved by the present invention is to provide a high-efficiency amorphous columnar transformer in which a deflection plate is attached to a lower portion of an amorphous core and a manufacturing method thereof in order to reduce the loss due to reduction in deformation of the core.

Another technical problem to be solved by the present invention is to provide a high-efficiency amorphous columnar transformer in which the winding direction of a winding core is applied differently from the prior art in order to reduce load loss due to copper loss, and a manufacturing method thereof.

Another technical problem to be solved by the present invention is to provide a high-efficiency amorphous columnar transformer having a noise reduction plate for noise reduction and a method of manufacturing the same.

The high-efficiency amorphous columnar transformer according to the present invention for achieving the above technical problem includes an amorphous core formed with an epoxy coating portion formed on a laminated surface; A winding core formed of a power-side winding portion and a ground-side winding portion and coupled to the amorphous core; A tightening fixing part for fixing and supporting the amorphous core to which the winding core is coupled; And an enclosure in which the tightening fixing portion on which the amorphous core is fixed and supported is internally supported and filled with insulating oil into an empty space inside, wherein the amorphous core is impregnated with insulating oil prior to coupling the winding core. .

In addition, the coating portion of the amorphous core is characterized in that a non-coated portion is formed to allow the insulating oil to flow into the inside of the amorphous core.

In addition, under the amorphous core, in order to prevent sagging of the core, a sag prevention plate made of a metal material corresponding to a shape of a lower outer circumference of the amorphous core is further coupled.

In addition, the anti-sag plate is fixed with an iron band surrounding the circumferential surface of the amorphous core, and the anti-sag plate and the iron band are connected to each other by ground.

In addition, the power-side primary winding is wound in the reverse direction, and the power-side secondary winding, the ground-side primary winding, and the ground-side secondary winding are wound in a forward direction.

In addition, the secondary-side ground side series is drawn from the left, the vertical lead is drawn from the right, the secondary power side series is drawn from the right, and the vertical lead is drawn from the left.

Further, the ground side and the secondary side of the power side are connected in series.

In addition, a noise reduction plate is further provided at a lower portion of the tightening fixing part to support the lower end of the tightening fixing part by being spaced apart from the inner surface of the enclosure by a predetermined interval, and a plurality of resonance holes are formed in the noise reduction plate. do.

On the other hand, the method of manufacturing a high-efficiency amorphous columnar transformer according to the present invention comprises the steps of manufacturing an amorphous core; Attaching a tape having a predetermined width in the lamination length direction to the lamination surface of the amorphous core; An epoxy coating step of coating the laminated surface of the amorphous core with an epoxy resin; An insulating oil impregnation step of impregnating the amorphous core with insulating oil while exposing the uncoated portion by removing the tape from the amorphous core coated with an epoxy resin; A winding core coupling step of coupling a power-side winding portion and a ground-side winding portion to the amorphous core; A fastener coupling step of coupling a fastener fixing portion to an outer circumference of the amorphous core to fix the amorphous core to which the coil core is coupled; And an enclosure coupling step of closing the enclosure after filling insulating oil in a state in which the tightening fixing part on which the amorphous core is fixedly supported is seated and supported inside the enclosure.

In addition, in the insulating oil impregnation step, the insulating oil is characterized in that the insulating oil heated to 30 ℃ or more.

In addition, the width of the non-coated portion is characterized in that 20 ~ 30㎜.

In addition, after the insulating oil impregnation step, a coated anti-sag plate made of a metallic material having a'∪' shape on the lower overlap surface of the amorphous core is fixed with an iron band surrounding the circumferential surface of the amorphous core, and the iron band It characterized in that it further comprises a; deflection prevention plate coupling step of removing the painting of the central portion of the sagging prevention plate to be mounted to connect the sag prevention plate and the iron band to ground.

In addition, the thickness of the sagging prevention plate is characterized in that 2 mm or more.

In addition, in the winding core coupling step, the primary winding of the power side is wound in the reverse direction, the secondary winding of the power side, the primary winding of the grounding side and the secondary winding of the grounding side are wound in the forward direction, and the series of the secondary grounding side is drawn from the left. The vertical lead is drawn from the right side, the series of the secondary power side is drawn from the right side and the vertical lead is drawn from the left side, and the ground side and the secondary side of the power side are connected in series.

Further, a noise reduction plate mounting step of installing a noise reduction plate provided with a plurality of resonance holes so as to be spaced apart from the inner lower portion of the enclosure in an upper direction at a predetermined interval; further comprising, the tightening fixing part on the top of the noise reduction plate It characterized in that the lower end of the support.

In addition, the resonant hole diameter is characterized in that formed in 5 ~ 10mm.

The present invention described above has the following effects.

First, by impregnating the amorphous core with the insulating oil, brittleness is reduced, and the phenomenon of debris in the process of disassembling and re-laminating the upper part of the core for winding work (overlap process) can be significantly reduced.

In addition, it is possible to secure a distribution path through which insulating oil can flow into the core by forming an uncoated portion.

In addition, it is possible to prevent sagging of the lower portion of the core due to gravity by configuring a sagging prevention plate.

In addition, by grounding the deflection prevention plate and the iron band, it is possible to prevent loss due to circulating current.

In addition, it is possible to reduce the load loss due to copper loss by changing the winding operation.

In addition, it is possible to reduce the noise generated by having a noise reduction plate with a plurality of resonance holes formed, and in particular, the number of resonance holes is increased from the center to the outside to reduce noise transmitted to the outside through the wall of the enclosure due to increased frictional force. I can make it.

In addition, it is possible to solve the disadvantages of the amorphous transformer and provide a highly efficient amorphous column transformer by the above-described structure and features.

Figure 1 (a) is a diagram substitute photo showing a state in which the amorphous core is broken,
(B) of FIG. 1 is a photograph substitute for a drawing showing a deformed state of the lower part of the amorphous core
2 is a structural conceptual diagram according to an embodiment of the high-efficiency amorphous columnar transformer according to the present invention,
Figure 3 is a photographic diagram showing the coated and non-coated portions of the amorphous core according to an embodiment of the present invention,
Figure 4 is a drawing substitute photograph showing an amorphous core to which an anti-sag plate is coupled using an iron band according to an embodiment of the present invention,
5 is a view showing a winding structure of a winding core according to an embodiment of the present invention,
6 is a view showing a noise reduction plate according to an embodiment of the present invention;
7 is a process diagram according to an embodiment of a method of manufacturing a high-efficiency amorphous columnar transformer according to the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing the embodiments of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiments of the present invention, the detailed description thereof will be omitted.

In addition, in describing the constituent elements of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component It should be understood that may be “connected”, “coupled” or “connected”.

FIG. 2 is a structural conceptual diagram according to an embodiment of a high-efficiency amorphous columnar transformer according to the present invention, and FIG. 3 is a schematic photograph showing a coated portion and a non-coated portion of an amorphous core according to an embodiment of the present invention, and FIG. 4 is It is a drawing substitute photo showing an amorphous core to which a sagging prevention plate is coupled using an iron band according to an embodiment of the present invention, and FIG. 5 is a view showing a winding structure of a winding core according to an embodiment of the present invention, and FIG. A diagram showing a noise reduction plate according to an embodiment of the present invention.

The structure of the highly efficient amorphous columnar transformer according to the present invention will be described with reference to FIGS. 2 to 6 as follows.

The high-efficiency amorphous columnar transformer of the present invention includes an amorphous core 10, a winding core 20, a fastening fixing part 30, and an enclosure 40 filled with insulating oil 50, and further includes a noise reduction plate 80. I can.

The amorphous core 10 is manufactured by stacking amorphous metal plates in a winding manner, and an amorphous alloy such as the amorphous core 10 is a solid outside but a liquid inside and can be said to be a solid state containing a liquid. Thus, the crystals inside the amorphous core 10 react sensitively to temperature. In other words, when the temperature is lowered, the liquid inside becomes brittle due to the property to proceed to crystallization and becomes brittle. Therefore, before the amorphous core 10 is overlapped, the amorphous core 10 is pre-impregnated with insulating oil heated to 30°C or higher. In this way, when the temperature of the core is raised by impregnating the amorphous core 10 with insulating oil, the brittleness decreases, and the amorphous core 10 in the process of dismantling and re-laminating the upper part of the amorphous core 10 for winding work (overlap process). The cracking of the product is significantly reduced. In addition, by impregnating the amorphous core 10 with the insulating oil in advance, air existing inside the amorphous core 10 can be removed during the winding lamination process, thus blocking the interlayer discharge phenomenon and damaging the amorphous core 10. And reduce losses. At this time, if the temperature of the insulating oil is lower than 30°C, the temperature of the amorphous core 10 is lowered to reduce the effect of reducing brittleness. Therefore, it is preferable to maintain the temperature of the insulating oil at 30°C or higher. Since the coated part 11 made of an epoxy material is formed on the laminated surface of the amorphous core 10, the coating part 11 has an uncoated part (as shown in FIG. 3) for the introduction of insulating oil into the amorphous core 10. 12) is formed so that the insulating oil flows into the amorphous core 10 through the uncoated portion 12 formed when the amorphous core 10 is impregnated with the insulating oil.

As described in the background art, the lower portion of the amorphous core 10 continues to sag downward due to gravity even after lamination is completed due to the thin thickness of the amorphous core 10. Accordingly, the amorphous core 10 has a lower outer circumferential shape of the amorphous core 10, that is, a'∪' shape anti-sagging plate 60 is coupled to the lower portion of the amorphous core 10 to prevent sagging of the core.

Referring to FIG. 4, the sagging prevention plate 60 is fixed with an iron band 70 surrounding the entire circumferential surface of the amorphous core 10. At this time, the outer circumferential surface of the anti-sag plate 60 is painted, and a non-painted surface from which the paint is removed is formed in the center in the combined longitudinal direction of the anti-sag plate 60. The iron band 70 is coupled along the unpainted surface, and the sagging prevention plate 60 and the iron band 70 are connected to each other through multiple grounds to prevent loss due to circulating current.

The winding core 20 is formed of a power-side winding portion 21 and a ground-side winding portion 22 and is coupled to the core.

5, the power-side winding unit 21 is composed of a power-side primary winding 21-1 and a power-side secondary winding 21-2, and the ground-side winding unit 22 is a ground-side primary winding ( 22-1) and the ground side secondary winding (22-2). In a columnar transformer, an electromagnetic force is generated between the ground side and the power side winding due to an electromechanical force that attempts to escape in opposite directions, and a loss occurs due to the generated electromechanical force. Therefore, to reduce loss, the power-side primary winding 21-1 is wound in the reverse direction, and the power-side secondary winding 21-2, the grounding primary winding 22-1, and the grounding secondary winding 22- Loss can be reduced by winding 2) in the forward direction. In other words, by winding the ground-side primary winding (22-1) and the ground-side secondary winding (22-2) in the forward direction, the leakage magnetic flux is linked to the reverse winding of the power-side primary winding (21-1) and attenuated, resulting in loss. It is a reduced principle. At this time, the series on the secondary side of the ground side is drawn from the left, the vertical lead is drawn from the right, the series on the secondary power side is drawn from the right, and the vertical lead is drawn from the left. In addition, since the parallel windings generate losses due to the circulating current between the windings, the ground side and the secondary side of the power side are connected in series to reduce loss.

The fastening fixing part 30 serves to fix and support the amorphous core 10 to which the winding core 20 is coupled, and the fastening fixing part 30 in which the amorphous core 10 is fixedly supported inside the enclosure 40 is It is implicit and supported.

At this time, a noise reduction plate 80 is provided under the tightening fixing part 30. The noise reduction plate 80 is spaced from the lower inner surface of the enclosure 40 in the upper direction at a predetermined interval, and is supported in contact with the lower end of the tightening fixing part 30. As shown in FIG. 6, the noise reduction plate 80 is formed with a plurality of resonance holes 81 using the Helmholtz resonance principle, thereby reducing generated noise. That is, when the noise reduction plate 80 having a plurality of resonance holes 81 is installed in the lower part where the noise is discharged from the enclosure 40, the air having the noise source passes through the resonance hole 81 and the pressure is strengthened. , At this time, air in the resonance hole 81 acts as a mass. Accordingly, as air having a noise source passes through the narrow resonance hole 81, friction is generated between the air and the resonance hole 81, and the noise source is consumed as heat, and the principle of sound absorption is applied. In other words, as the cross-sectional area of the resonance hole 81 decreases, the frequency of the sound passing through decreases, resulting in low sound.

In the upper part of the noise reduction plate 80, the amorphous core 10 is fixedly supported and a fastening fixing part 30 is installed and supported, and after the fastening fixing part 30 is installed, an insulating oil 50 in the empty space of the enclosure 40 ) And close the enclosure (40). Since the installation of the low and high voltage terminals and the connection of each component can be performed according to known techniques, detailed descriptions thereof will be omitted.

7 is a process chart according to an embodiment of a method of manufacturing a high-efficiency amorphous columnar transformer according to the present invention, and a method of manufacturing the above-described high-efficiency amorphous columnar transformer will be described with reference to FIG. 7 along with FIGS. 2 to 6.

Prior to describing the manufacturing method, the method of manufacturing a high-efficiency amorphous columnar transformer according to the present invention may refer to the description of the above-described high-efficiency amorphous columnar transformer. Hereinafter, descriptions of overlapping parts will be omitted or briefly described.

The method of manufacturing the high-efficiency amorphous columnar transformer of the present invention includes an amorphous core manufacturing step (S10), a taping step (S20), an epoxy coating step (S30), an insulating oil impregnation step (S40), a sagging prevention plate bonding step (S50), a winding core bonding It comprises a step (S60), a fastener coupling step (S70), a noise reduction plate mounting step (S80) and an enclosure coupling step (S90).

First, the amorphous core manufacturing step (S10) is a step of manufacturing the amorphous core 10 by winding and stacking the amorphous core 10 as described above.

The taping step (S20) is a step of attaching a tape having a predetermined width in the lamination length direction to the lamination surface of the amorphous core 10. At this time, since the tape having a predetermined width forms the uncoated portion 12, it is preferable to set the width of the tape to be attached to 20 to 30 mm. The laminated surface of the core is coated with an epoxy material to form the coating part 11, and when the coating part 11 is formed, the insulating oil flows into the amorphous core 10 due to the coating part 11 when impregnated with the insulating oil. I can't. In addition, if the coating part 11 is formed after being impregnated with insulating oil, the adhesive support of the coating part 11 is lowered due to the insulating oil, so that the coating part 11 is not formed, so that the coating part 11 is formed. Insulation oil impregnation should be carried out under the condition. Therefore, the epoxy coating step (S30) of coating the laminated surface of the amorphous core 10 with an epoxy resin after attaching the tape as described above is performed.

After coating with an epoxy resin, the uncoated portion 12 is exposed by removing the attached tape, and the uncoated portion 12 serves as an insulating oil distribution channel.

It is desirable to keep the width of the distribution path 20 to 30 mm like the width of the tape. If the width of the distribution channel is less than 20 mm, the passage through which the insulating oil is impregnated is narrow, so that the insulating oil is not properly impregnated to the inside of the amorphous core 10. If it exceeds 30 mm, the tape attached to secure the distribution channel is removed. The amorphous core 10 is broken due to the adhesion of the amorphous core 10.

In the insulating oil impregnation step (S40), the amorphous core 10 is impregnated with an insulating oil of 30°C or higher while the tape is removed to expose the uncoated portion 12 as described above. It is preferable that the impregnation time is sufficiently impregnated for 12 hours or more to remove all air layers formed inside the amorphous core 10. After impregnation and drying for a predetermined time or more, the sagging prevention plate bonding step (S50) is performed.

In the sag-prevention plate coupling step (S50), an iron band covering the circumferential surface of the amorphous core 10 is coated with a coating-treated sag-preventing plate 60 made of a metal material having a'∪' shape on the lower overlap surface of the amorphous core 10. It is fixed with (70), and the central part of the anti-sagging plate 60 to which the iron band 70 is mounted is removed from the paint to connect the anti-sag plate 60 and the iron band 70 to each other by multiple grounding. At this time, when the thickness of the anti-sag plate 60 is less than 2 mm, the anti-sag force is weak and thus the function cannot be properly performed. Therefore, the thickness of the anti-sag plate 60 is preferably 2 mm or more.

The winding core coupling step (S60) performed after the deflection prevention plate coupling step (S50) is a step of coupling the power-side winding part 21 and the ground-side winding part 22 to the amorphous core 10. Reference may be made to the above description.

Fastener coupling step (S70) is a step of coupling the fastening fixing part 30 to the outer periphery of the amorphous core 10 in order to fix and support the amorphous core 10 to which the winding core 20 is coupled. The tightening fixing portion 30 is coupled to the upper and lower portions of the amorphous core 10 and the peripheral portions.

The noise reduction plate mounting step (S80) is a step of installing the noise reduction plate 80 spaced apart from the inner lower portion of the enclosure 40 in the upper direction at a predetermined interval. The noise reduction plate 80 is provided with a plurality of resonance holes 81.

At this time, the diameter of the resonance hole 81 is preferably formed to 5 ~ 10 mm. That is, if the size of the resonant hole 81 is larger than 10 mm, the effect is reduced due to less pressure enhancement, and if it is less than 5 mm, the hole may be blocked due to a burr during hole processing. In addition, the number of resonant holes 81 may increase the number of passages from the center to the wall of the enclosure, thereby effectively reducing noise transmitted to the outside through the wall of the enclosure 40 due to increased friction.

In the case coupling step (S90), the amorphous core 10 is fixedly supported by the fastening fixing part 30 mounted on the upper part of the noise reduction plate 80 inside the enclosure, and the insulating oil is filled and the enclosure 40 is closed. .

According to the present invention described above, by impregnating the amorphous core 10 with insulating oil, it is possible to prevent the amorphous core 10 from being broken, thereby reducing no-load loss, and the amorphous core 10 through the sag prevention plate 60 By preventing sagging, loss due to deformation of the core can be reduced, and load loss due to copper loss can be reduced by changing the winding work, as well as noise generated by using the Helmholtz resonance principle through the noise reduction plate 80. By effectively reducing the power, it is possible to provide an amorphous columnar transformer with improved overall loss and improved efficiency.

In the above, even if all the constituent elements constituting the embodiments of the present invention are described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the constituent elements may be selectively combined and operated in one or more. In addition, terms such as "include", "consist of" or "have" described above mean that the corresponding component may be present unless otherwise stated, excluding other components It should not be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art, unless otherwise defined. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments posted in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: amorphous core 11: coating portion
12: non-coated part 20: winding iron core
21: power side winding part 21-1: power side primary winding
21-2: Power side secondary winding
21-3: Lead lead wire of primary winding on the power side
22: ground side winding part 22-1: ground side primary winding
22-2: Ground side secondary winding
22-3: Lead lead wire of primary winding on the ground side
30: fastening fixing unit 40: enclosure
50: insulating oil 60: sagging prevention plate
70: iron band 80: noise reduction plate
81: Resonance Hall
S10: amorphous core production step S20: taping step
S30: epoxy coating step S40: insulating oil impregnation step
S50: Deflection prevention plate coupling step S60: winding core coupling step
S70: Fastener coupling step S80: Noise reduction plate mounting step
S90: Enclosure bonding step

Claims (13)

An amorphous core in which a coating part made of an epoxy material is formed on the laminated surface;
A winding core formed of a power-side winding portion and a ground-side winding portion and coupled to the amorphous core;
A tightening fixing part for fixing and supporting the amorphous core to which the winding core is coupled; And
Includes; an enclosure in which the tightening fixing portion on which the amorphous core is fixed and supported is internally supported, and an insulating oil is filled into the empty space inside,
The amorphous core is impregnated with insulating oil before combining the winding iron core,
At the lower portion of the amorphous core, a metal anti-sag plate corresponding to the shape of the lower outer circumference of the amorphous core is further coupled to prevent sagging of the core,
The anti-sag plate is fixed with an iron band surrounding the circumferential surface of the amorphous core, so that the anti-sag plate and the iron band are connected to each other through a ground. The method of claim 1,
In the coating portion of the amorphous core,
High-efficiency amorphous columnar transformer having an uncoated portion for introducing insulating oil into the amorphous core. delete delete The method of claim 1,
The primary winding on the power side is wound in the reverse direction,
High-efficiency amorphous columnar transformer in which the secondary winding on the power side, the primary winding on the ground and the secondary winding on the ground are wound in the forward direction. The method according to any one of claims 1, 2 and 5,
In the lower part of the tightening fixing part,
A noise reduction plate is further provided that is spaced apart from the inner surface of the enclosure at a predetermined interval to support the lower end of the tightening fixing part,
A high-efficiency amorphous columnar transformer in which a plurality of resonance holes are formed in the noise reduction plate. It relates to a method of manufacturing the high-efficiency amorphous columnar transformer according to claim 1,
Amorphous core production step;
A taping step of attaching a tape having a predetermined width in the lamination length direction to the lamination surface of the amorphous core;
An epoxy coating step of coating the laminated surface of the amorphous core with an epoxy resin;
An insulating oil impregnation step of impregnating the amorphous core with insulating oil while exposing the uncoated portion by removing the tape from the amorphous core coated with an epoxy resin;
A winding core coupling step of coupling a power-side winding portion and a ground-side winding portion to the amorphous core;
A fastener coupling step of coupling a fastener fixing portion to an outer periphery of the amorphous core to fix the amorphous core to which the coil core is coupled; And
Including; an enclosure coupling step of closing the enclosure after filling the insulating oil in a state in which the tightening fixing part on which the amorphous core is fixedly supported is seated and supported inside the enclosure,
In the insulating oil impregnation step,
The insulating oil is a method of manufacturing a high-efficiency amorphous columnar transformer, which is an insulating oil heated to 30°C or higher. delete The method of claim 7,
A method of manufacturing a high-efficiency amorphous columnar transformer having a width of the uncoated part of 20 to 30 mm. The method of claim 7,
After the insulating oil impregnation step,
The anti-sag plate coated with a metallic material having a shape of'∪' is fixed to the lower part of the amorphous core with an iron band surrounding the circumferential surface of the amorphous core, and the central part of the anti-sag plate on which the iron band is attached is A method of manufacturing a high-efficiency amorphous columnar transformer further comprising a; deflection prevention plate coupling step of removing the paint and connecting the sagging prevention plate and the iron band to ground. The method of claim 10,
A method of manufacturing a highly efficient amorphous columnar transformer having a thickness of the deflection prevention plate of 2 mm or more. The method according to any one of claims 7 and 9 to 11,
A noise reduction plate mounting step of installing a noise reduction plate provided with a plurality of resonance holes so as to be spaced apart from the inner bottom of the enclosure in an upper direction at a predetermined interval; further comprising,
A method of manufacturing a high-efficiency amorphous columnar transformer in which the lower end of the clamping part is supported on the noise reduction plate. The method of claim 12,
The method of manufacturing a high-efficiency amorphous columnar transformer having the resonance hole diameter of 5 to 10 mm.

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