KR20140076456A

KR20140076456A - Circular coil mold transformer

Info

Publication number: KR20140076456A
Application number: KR1020120144967A
Authority: KR
Inventors: 김형두
Original assignee: 현대중공업 주식회사
Priority date: 2012-12-12
Filing date: 2012-12-12
Publication date: 2014-06-20

Abstract

The present invention relates to a circular coil mold transformer which is arranged on a straight line and includes a plurality of coils having a through hole inside. The circular coil mold transformer includes a first coil which encloses a first through hole of the coil and a second through hole of the coil and is formed in the longitudinal direction of the coil; a second coil which is formed in the longitudinal direction of the coil and encloses a second through hole of the coil and a third through hole of the coil; and a third coil which is formed in the longitudinal direction of the coil and encloses the first through hole of the coil and the third through hole of the coil. The circular coil mold transformer can prevent the degradation of transformation performance by reducing a cut surface of the coil on which a circular coil is wound and minimize a power loss.

Description

[0001] CIRCULAR COIL MOLD TRANSFORMER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular coil mold transformer, and more particularly, to a circular coil mold transformer for winding a coil on a winding of a mold transformer to reduce a fracture surface of the winding.

Generally, a mold transformer is a device in which an iron core and a winding are not immersed in insulating oil but the winding is solid-insulated by using a resin such as epoxy. It is necessary to consider a transformer considering environmental pollution, fire safety, downsizing, light weight, and economical efficiency of maintenance in water distribution facilities such as factories, buildings, and industrial plants. The mold transformer has excellent electrical and mechanical characteristics and solves the problems of the induction type and dry type transformer, and its use is increasing accordingly.

Korean Unexamined Patent Publication No. 2003-0079086 relates to an amorphous mold transformer configured to reduce noises generated in a core and maintain an insulation distance between a frame and a core and includes an upper frame and a lower frame, An amorphous mold transformer comprising an amorphous core composed of a core leg, a core upper yoke and a core lower yoke, a high voltage coil and a low voltage coil provided inside and outside the amorphous core, and a vertical duct provided between the core and the low voltage coil, An elastic supporter for supporting a core is provided between the lower frame and the lower core yoke, and an insulation supporter is provided between the upper end of the low-voltage coil and the upper yoke of the core. According to the disclosed technology, the amorphous-mold transformer can reduce the noise generated in the core by the elastic body for supporting the cores provided between the lower frame and the lower yoke of the core, and the insulation supporter provided between the upper end of the low- It is possible to prevent the upper yoke of the core from being stuck downward when assembling the upper yoke of the core, thereby securing the insulation distance between the upper yoke and the coils.

However, the conventional three-phase mold transformer uses stacked cores which are not continuous, so that a large number of fracture surfaces are generated in the transformer winding, resulting in a high power loss due to loss of magnetic flux, and the transforming performance is deteriorated.

Korean Patent Publication No. 2003-0079086

An embodiment of the present invention is to provide a circular coil mold transformer capable of continuously winding a circular coil on a winding disposed as a line of a three-phase mold-type transformer to reduce a fracture surface of the winding.

Among the embodiments, a mold transformer comprising a plurality of windings in which a circular coil mold transformer is disposed in a line and in which a through hole is formed, the mold transformer being formed in the longitudinal direction of the winding, A second coil formed in the longitudinal direction of the winding to surround the second through hole of the coil and the third through hole of the coil, and a second coil formed in the longitudinal direction of the coil And a third coil surrounding the first through-hole of the winding and the third through-hole of the winding.

In one embodiment, the first coil, the second coil, and the third coil may encircle the plurality of through holes.

In one embodiment, the first coil, the second coil, and the third coil may be formed in a plurality of numbers, respectively, so that the through-holes may be wound in multiple layers.

In one embodiment, the first coil and the second coil, the first coil, and the intermediate portion between the third coil, the second coil, and the third coil may be formed in contact with each other.

In one embodiment, the upper side of the first coil, the upper side of the second coil, the lower side of the first coil, and the lower side of the second coil may be formed in contact with each other.

The circular coil mold transformer according to an embodiment of the present invention can reduce the breakdown surface of the winding wound around the circular coil to prevent a reduction in the transforming performance and minimize the power loss.

1 is a perspective view illustrating a circular coil mold transformer according to an embodiment of the present invention.
2 is a cross-sectional view illustrating the circular coil mold transformer shown in Fig.
Figure 3 is a cross-sectional view illustrating this embodiment of the circular coil mold transformer of Figure 1;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

FIG. 1 is a perspective view illustrating a circular coil mold transformer according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating a circular coil mold transformer shown in FIG.

Referring to FIGS. 1 and 2, a circular coil mold transformer 100 includes a first coil 140, a second coil 150, and a third coil 160.

The first winding 110, the second winding 120, and the third winding 130 may be formed of three pieces of the first winding 110, the second winding 120, And the third winding 130 may be arranged in a line. Each winding is coated with an insulating material on a copper or aluminum wire and wound in the form of a coil to convert electrical energy into mechanical energy.

A first through hole 111 is formed in the first winding 110 in a direction perpendicular to the first winding 110 and a second winding 120 is disposed on the right side of the first winding 110 The first coil 140 formed in the longitudinal direction of the windings 110 and 120 is connected to the first through hole 111 of the first winding 110 and the second through hole 121 of the second winding 120 ). The third coil 160 formed in the longitudinal direction of the windings 110 and 130 is connected to the first through hole 111 of the first coil 110 and the third through hole 131 of the third coil 130 ).

A second through hole 121 is formed in the second winding 120 in a direction perpendicular to the second winding 120 and a first winding 110 is disposed on the left side of the second winding 120 The first coil 140 formed in the longitudinal direction of the windings 110 and 120 is connected to the first through hole 111 of the first winding 110 and the second through hole 121 of the second winding 120 ). The third coil 130 is disposed on the right side of the second winding 120 and the second coil 150 formed in the longitudinal direction of the windings 120 and 130 is connected to the second winding 120 The through holes 121 and the third through holes 131 of the third winding 130 can be covered.

A third through hole 131 is formed in the third winding 130 in a direction perpendicular to the third winding 130 and a second winding 120 is disposed on the left side of the third winding 130 The second coil 150 formed in the longitudinal direction of the windings 120 and 130 is connected to the second through hole 121 of the second winding 120 and the third through hole 131 of the third winding 130 ). The third coil 160 formed in the longitudinal direction of the windings 110 and 130 is connected to the first through hole 111 of the first coil 110 and the third through hole 131 of the third coil 130 ).

The first coil 140 is formed in the longitudinal direction of the first winding 110 and the second winding 120 to form the first through hole 111 of the first winding 110 and the second through hole 111 of the second winding 120, The through hole 121 can be covered and the magnetic flux generated by the electromagnetic induction phenomenon can act as a passage. At this time, the first coil 140 can surround the first through holes 111 and the second through holes 121 in a circular shape, and the first through holes 111 and the second through holes 121 The number of the first coils 140 surrounding the first through holes 111 and the second through holes 121 may vary depending on the size or performance of the transformer.

The first coil 140 is formed such that the middle portion side surfaces between the second coils 150 are in contact with each other so that the electromagnetic induction phenomenon occurs at a portion where the first coil 140 and the second coil 150 are in contact with each other, And the first coil 140 is formed by contacting the middle side surfaces of the third coils 160 so that the electromagnetic induction phenomenon occurs at a portion where the first coil 140 and the third coil 160 are in contact with each other. And the power can be transmitted more efficiently.

The second coil 150 is formed in the longitudinal direction of the second winding 120 and the third winding 130 so that the second through hole 121 of the second winding 120 and the third The through hole 131 can be surrounded and can serve as a passage for allowing a magnetic flux generated by the electromagnetic induction phenomenon to flow. In this case, the second coil 150 may surround the second through hole 121 and the third through hole 131 in a circular shape, and the second through hole 121 and the third through hole 131 may be formed in a plurality of The number of the second coils 150 surrounding the second through holes 121 and the third through holes 131 may vary depending on the size or performance of the transformer.

The second coil 150 is formed such that the middle portions of the first coils 140 are in contact with each other so that electromagnetic induction occurs at a portion where the first coil 140 and the second coil 150 are in contact with each other, And the second coil 150 is formed such that the middle portions of the third coils 160 are in contact with each other and the electromagnetic induction phenomenon occurs at a portion where the second coil 150 and the third coil 160 are in contact with each other. And the power can be transmitted more efficiently.

The third coil 160 is formed in the longitudinal direction of the third winding 130 and the first winding 110 so that the third through hole 111 of the first winding 110 and the third through The through hole 131 can be surrounded and can serve as a passage for allowing a magnetic flux generated by the electromagnetic induction phenomenon to flow. At this time, the third coil 160 can surround the first through hole 111 and the third through hole 131 in a circular shape, and the first through hole 111 and the third through hole 131 can be Here, the number of the third coil 160 surrounding the first through hole 111 and the third through hole 131 may vary depending on the size or performance of the transformer.

The third coil 160 is formed such that the middle portions of the first coils 140 are in contact with each other so that electromagnetic induction occurs at a portion where the first coil 140 and the third coil 160 are in contact with each other, And the third coil 160 is formed by contacting the middle portion side surfaces between the second coils 150 so that the electromagnetic induction phenomenon occurs at a portion where the second coil 150 and the third coil 160 are in contact with each other. And the power can be transmitted more efficiently.

Figure 3 is a cross-sectional view illustrating this embodiment of the circular coil mold transformer of Figure 1;

Referring to FIG. 3, the circular coil mold transformer 200 includes a first coil 240, a second coil 250, and a third coil 260.

The first coil 240, the second coil 250 and the third coil 260 are connected to the first coil 140, the second coil 150 and the third coil 160 And thus the description thereof will be omitted. At this time, the first coil 240 and the second coil 250 are further described.

The first coil 240 may be formed by contacting the upper side surface 341 of the first coil 240 and the upper side surface 351 of the second coil 250. The lower surface of the first coil 240 342 and the lower side 352 of the second coil 250 may be in contact with each other. Accordingly, the portion where the first coil 240 and the second coil 250 are in contact with each other increases, so that the power according to the electromagnetic induction can be efficiently transmitted.

The second coil 250 may be formed by contacting the upper side 351 of the second coil 250 and the upper side 341 of the first coil 240 and the lower side 351 of the second coil 250 352 and the lower side 342 of the first coil 240 may be in contact with each other. Accordingly, the portion where the second coil 250 and the first coil 240 are in contact with each other increases, so that the electric power according to the electromagnetic induction can be efficiently transmitted.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the present invention as defined by the following claims It can be understood that

100: Circular coil mold transformer
110: 1st winding
111: first through hole
120: Secondary winding
121: second through hole
130: Third winding
131: Third through hole
140: first coil
150: second coil
160: third coil

Claims

A mold transformer comprising a first winding, a second winding, and a third winding arranged in a row and having through holes formed therein,
A first coil formed in the longitudinal direction of the winding and surrounding the first through hole of the first coil and the second through hole of the second coil;
A second coil formed in the longitudinal direction of the winding and surrounding the second through hole of the second coil and the third through hole of the third coil; And
A third coil formed in the longitudinal direction of the coil and surrounding the first through hole of the first coil and the third through hole of the third coil;
And a transformer connected to the transformer.

The method according to claim 1,
Wherein the first coil, the second coil, and the third coil surround the plurality of through holes in a circular shape.

3. The method of claim 2,
Wherein the first coil, the second coil, and the third coil are formed in a plurality of numbers, respectively, so as to surround the through hole in multiple layers.

The method of claim 3,
And the intermediate portion side surfaces between the first coil and the second coil, the first coil and the third coil, the second coil and the third coil are formed in contact with each other.

The method of claim 3,
An upper side surface of the first coil, an upper side surface of the second coil, a lower side surface of the first coil, and a lower side surface of the second coil are in contact with each other.