KR101925216B1 - Flat laminating type reactor apparatus, and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a flat laminating type reactor apparatus, and a manufacturing method thereof, in which a coil is not wound around a DC reactor used in various current type power converters, one or more plate-shaped materials having one side opened are laminated to form a winding, an insulation material having superior insulation property than air is inserted between the plate-shaped materials, and pressure is applied to the uppermost and lowermost ends of the plate-shaped laminated coil such that the plate-shaped materials are brought into electrical contact with each other, thereby fixing and supporting the laminated state. The disclosed plate-type laminating type reactor apparatus includes: a winding portion in which one or more plate-shaped materials are laminated; and a connecting portion for electrically connecting the plate-shaped materials to each other when the one or more plate-shaped materials are laminated. According to the present invention, it is possible to increase the magneto-motive force (MMF) per unit area by improving the space factor compared to the conventional coil structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat laminate reactor apparatus and a manufacturing method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-shaped laminated reactor apparatus and a method of manufacturing the same, and more particularly, to a DC reactor used in various current type power converters, Layered reactor device and a method of manufacturing the same, which are capable of increasing the magneto-motive force per unit area by improving the window factor rate compared to the conventional coil structure by stacking and winding.

Generally, a reactor device is an electric device that exhibits a reactance that is largely inductive to an abrupt change of alternating current or current due to the accumulation of electromagnetic energy, and a coil is wound around an iron core.

In addition, the reactor is a shunt reactor that is installed in parallel with the power transmission system to supply the ground current (phase current), and is used for the purpose of limiting the fault current in preparation for a short circuit fault Current limiting reactors, and arc extinguishing reactors that naturally destroy the grounding arc in the event of a line ground fault in a transmission line.

Among the measures to improve the output in existing electric devices, there is a method to increase the magnetomotive force per unit area. However, the existing coil structure has a limit of about 37% when using a copper copper wire and about 66% when using a galvanized copper wire.

In addition, in order to insulate coil wires during coil winding, enamel-coated leads are generally used, or enamel molding or impregnation is applied.

However, the reactor device of such a coil winding has a disruptive critical voltage gradient of 30 kV / cm in the DC state and 21 kV / cm in the AC (effective value) state. If the air layer shape is not maintained, have.

When the vacuum impregnation is applied, there is a drawback that the impregnation material such as epoxy penetrates into the gap between the turns due to the capillary phenomenon, and the coil is not formed due to the formation of the insulating layer.

Korean Patent Registration No. 10-0658361 (Registered on December 11, 2006)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks of the present invention to provide a DC reactor for use in various current type power converters in which one or more plate- (MMF) per unit area by increasing the drop rate of the reactor structure relative to the coil structure, and a manufacturing method thereof.

According to an aspect of the present invention, there is provided a plate-shaped laminated reactor apparatus comprising: a winding section in which one or more plate-shaped materials are laminated; And a connection portion for electrically connecting each of the plate-like materials when the one or more plate-like materials are stacked.

The apparatus may further include a support for fixing and supporting the laminated state while applying pressure to the uppermost and lowermost ends of the at least one plate-shaped material so that the plate-shaped materials are electrically contacted through respective connecting portions.

In the plate-shaped laminate reactor apparatus according to the embodiment of the present invention, the at least one plate-like material may be made of a conductive material.

In the plate-shaped laminate reactor apparatus according to the embodiment of the present invention, the at least one plate-like material may have a form in which one side is opened.

In the plate-shaped stack reactor apparatus according to the embodiment of the present invention, the at least one plate-like material may be in the form of a circle or an ellipse.

In the plate-shaped laminate reactor apparatus according to the embodiment of the present invention, the winding section may be electrically connected by the connecting section and a gap may be formed between the plate-like materials in a state where the one or more plate-like materials are laminated.

In the plate-shaped laminate type reactor apparatus according to the embodiment of the present invention, the winding part may be inserted with an insulating material at intervals formed between the respective plate-shaped materials.

In the planar stack reactor apparatus according to the embodiment of the present invention, the insulation material may be a polyimide film.

In the plate-shaped laminate reactor apparatus according to the embodiment of the present invention, the connecting portions may be formed so as to protrude in a concavo-convex form for each plate-like material.

According to another aspect of the present invention, there is provided a method of manufacturing a plate-shaped stacked reactor device, the method comprising: (a) disposing a plate-shaped material having a connecting part protruding from one side thereof; (b) depositing an insulating material on the plate-like material; (c) repeating the steps (a) and (b) to form a plurality of the plate-like materials, wherein the plurality of plate-shaped materials are electrically contacted with each other to form a winding part; And (d) applying pressure to the uppermost and lowermost ends of the winding part to laminate the respective plate-shaped materials while being electrically in contact with each other to form the winding part.

The method of manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention may further include the step of applying pressure to the uppermost and lowermost ends of the winding section to bring the respective plate-shaped materials into electrical contact, and fixing and supporting the laminated state have.

In the method of manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention, the at least one plate-shaped material may be made of a conductive material.

In the method of manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention, the one or more plate-like materials may have a shape in which one side is opened.

In the method of manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention, the at least one plate-like material may have a circular or oval shape.

In the method of manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention, the connecting portions may be formed so as to protrude in a concavo-convex form for each of the at least one plate-like workpiece.

In the method of manufacturing a plate-shaped multilayer reactor apparatus according to an embodiment of the present invention, the insulating material in step (b) may be a polyimide film.

In the method of manufacturing a plate-shaped multilayer reactor apparatus according to an embodiment of the present invention, in the step (c), at least one plate-shaped material is laminated and electrically connected by the connecting portion, .

In the method for manufacturing a plate-shaped laminate reactor apparatus according to an embodiment of the present invention, the step (c) includes inserting the insulation material at intervals formed between the plate-like materials, The insulating material may be made of a material having better insulation than air in order to prevent the stacked plate-like materials from being energized.

Other aspects, advantages and features of the present invention will become more apparent on the basis of the following description in the entire specification, including the following sections: Brief Description of the Drawings, Detailed Description, and Claims.

According to the present invention, it is possible to reduce the size of an electric device by applying a laminate of a plate-shaped material and a reactor to a motor device, a transformer device, and the like, The efficiency can be improved.

In addition, by increasing the point rate relative to the existing coil structure, the magnetomotive force per unit area can be further increased.

1 is a perspective view showing an outer shape of a plate-shaped laminate reactor device according to an embodiment of the present invention.
FIG. 2 is a side view schematically showing a planar stack reactor apparatus according to an embodiment of the present invention. FIG.
FIG. 3 is a view showing a plate-like material in which a connecting portion of a constant thickness is formed on one side in a plate-type laminate reactor device according to an embodiment of the present invention.
4 is a view showing a structure in which plate-shaped materials are stacked and electrically connected by respective connecting portions in a plate-shaped stacked reactor device according to an embodiment of the present invention.
5 is a flowchart illustrating a method of manufacturing a plate-shaped stacked reactor apparatus according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

If any part is referred to as being "on" another part, it may be directly on the other part or may be accompanied by another part therebetween. In contrast, when a section is referred to as being "directly above" another section, no other section is involved.

The terms first, second and third, etc. are used to describe various portions, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified and that the presence or absence of other features, regions, integers, steps, operations, elements, and / It does not exclude addition.

Terms indicating relative space such as "below "," above ", and the like may be used to more easily describe the relationship to other portions of a portion shown in the figures. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain portions that are described as being "below" other portions are described as being "above " other portions. Thus, an exemplary term "below" includes both up and down directions. The device can be rotated by 90 degrees or rotated at different angles, and terms indicating relative space are interpreted accordingly.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

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.

1 is a perspective view showing an outer shape of a plate-shaped laminate reactor device according to an embodiment of the present invention.

Referring to FIG. 1, a planar stack reactor apparatus 100 according to an embodiment of the present invention has a structure in which one or more plate-like materials 110 having a predetermined thickness are stacked. At this time, each of the plate-like materials 110 has a shape in which one side is opened in a rectangular shape.

That is, the plate-like stack reactor device 100 according to the embodiment of the present invention has a structure in which one or more plate-like materials 110 are laminated to form a winding portion for generating a magnetic force. On the contrary, the conventional reactor apparatus has a structure in which the coil is wound multiple times at least once. Therefore, the planar stack reactor device 100 according to the embodiment of the present invention has a structure in which the existing reactor device and the winding part have different structures.

In addition, an insulating material 120 is inserted between the plate-shaped materials stacked one or more times. At this time, the insulating material 120 has the same shape as that of the plate-like material 110 in order to be stacked together with the plate-like material 110, and has a shape with one side opened.

The plate-like material 110, which is laminated by one or more pieces, may be formed into a circular shape, an elliptical shape, or other shapes having other plate shapes.

FIG. 2 is a side view schematically showing a planar stack reactor apparatus according to an embodiment of the present invention. FIG.

Referring to FIG. 2, a planar stack reactor apparatus 100 according to an embodiment of the present invention includes a winding unit 210 in which one or more plate-like materials 110 are stacked; And a connection portion 220 for electrically connecting each of the plate-like materials 110 when one or more plate-like materials are stacked.

Here, the winding part 210 is electrically connected through the connection parts 220 in a state where one or more plate-like materials 110 are laminated, and a gap is formed between the respective plate-like materials by the respective connection parts 220 . Accordingly, the insulation material 120 may be inserted into the winding part 210 at intervals formed between the respective plate-like materials 110.

At this time, the insulating material 120 may be a polyimide film, and the thickness (height) of the insulating material 230 may be equal to or less than the thickness (height) of the connecting portion 220.

In addition, when the at least one plate-like material 110 is stacked, the plate-like stacked reactor apparatus 100 according to the embodiment of the present invention applies pressure to the uppermost and lowermost ends to electrically connect the plate- And a support part 230 for fixing and supporting the laminated state while being brought into contact with each other.

The at least one plate-like material 110 may be made of a conductive material such as copper (Cu) or iron (Fe).

3, the plate-like material 110 according to the embodiment of the present invention may have a shape having one side opened 112 and a circular or elliptical shape. FIG. 3 is a view showing a plate-like material in which a connecting portion of a constant thickness is formed on one side in a plate-type laminate reactor device according to an embodiment of the present invention. As shown in FIG. 3, the plate-shaped work 110 having one side opened is formed with a connection part 220 protruding in a concavo-convex form on one side of the opening side.

The winding unit 210 according to the embodiment of the present invention is configured such that when one or more plate-like materials 110 are stacked, each of the plate-like materials 110 is stacked in the form of one opening, An empty space 112 is formed.

Accordingly, the plate-shaped stacked reactor device 100 according to the embodiment of the present invention is characterized in that the cooling material is located in the empty space 112 formed by stacking one or more plate-like materials 110, And a cooling device (not shown) for cooling the heat generated when the winding part is operated. At this time, the cooling device can be variously performed, such as a water-cooled type in which the heat generated in the winding part 210 is cooled by the cooling water, and an air-cooled type in which the heat is cooled through the cold air.

The plate-like laminate reactor apparatus 100 according to the embodiment of the present invention is constituted by connecting portions 220 formed to protrude in a concavo-convex shape on one side of the opening side of the plate-like material 110 as shown in Fig. 4, 110 are laminated and electrically connected to each other. 4 is a view showing a structure in which plate-shaped materials are stacked and electrically connected by respective connecting portions in a plate-shaped stacked reactor device according to an embodiment of the present invention. As shown in FIG. 4, the winding unit 210 includes a plurality of plate-shaped members 110 stacked on one another and a predetermined distance is formed between the plate-like members 110 by a connection unit 220 having a predetermined thickness (height) do. Accordingly, the insulating material 120 may be inserted into the space between the plate-shaped members 110 formed by the connecting portions 220, respectively.

5 is a flowchart illustrating a method of manufacturing a plate-shaped stacked reactor apparatus according to an embodiment of the present invention.

Referring to FIG. 5, in the plate-shaped stacked reactor apparatus 100 according to the embodiment of the present invention, a plate-shaped workpiece 110 in which a connection unit 220 is protruded is disposed on one side (S510).

Next, the insulating material 220 is laminated on the plate-like material 110 (S520).

Here, the insulating material 220 may be a polyimide film. Polyimide films have dielectric breakdown voltage (Disruptive Critical Voltage Gradient) of more than 1000kV / cm on DC and more than 700kV / cm on AC (effective value) and have better insulation characteristics than air. In addition, the polyimide film has a form that can be filled in the form of a film in the empty space for each turn (insulation can be maintained), and has excellent thermal conductivity compared to air (heat transfer is excellent).

Next, the above-described steps S510 and S520 are repeated, and the plate-like materials 110 are stacked one upon the other via the connection part 220 to form the winding part 210 (S530).

Here, the at least one plate-like workpiece 110 is made of a conductive material and has a shape in which one side is opened as shown in FIGS. 1 and 3, and the shape thereof may have a circular or oval shape.

In addition, the connection part 220 is formed so as to protrude in a concavo-convex form for each of the at least one plate-like workpiece 110. Accordingly, each time one or more plate-like materials 110 are laminated, a gap is created by the connection part 220, and the insulation material 120 is inserted into the gap.

At this time, the insulating material 120 inserted at intervals formed between the respective plate-shaped materials may be made of a material having better insulation than air in order to prevent the laminated plate-shaped materials from being energized.

Then, a pressure is applied to the uppermost and lowermost ends of the winding part 210 through the supporting part 230, so that the respective plate-shaped materials are electrically contacted to each other to be laminated, and the stacked state is fixed and supported at step S540.

Accordingly, when one or more plate-like materials 110 are laminated, each of the less-contacted connection portions 220 is pressed through the support portion 240 to maintain contact with the respective plate-like materials 110, (MMF) per unit area can be increased by increasing the dropping rate compared to the conventional coil structure.

As described above, according to the present invention, for a DC reactor used in various current-type power converters, one or more plate-shaped materials are electrically laminated by winding them without winding the coils, (MMF) per unit area can be increased by improving the yield ratio and the manufacturing method thereof.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

100: Plate-shaped laminate type reactor device 110: Plate-like material
112: opening (empty space) 120: insulating material
210: winding part 220: connection part
230: Support

Claims (19)

A winding portion in which one or more plate-like materials are stacked;
A connecting portion electrically connecting each of the plate-shaped materials when the one or more plate-like materials are stacked; And
A cooling device for cooling the heat generated when the winding part is operated so that the cooling material is located in the empty space formed by stacking the one or more plate-shaped materials and the cooling material surrounds the winding part around the winding part;
And a plurality of plate-shaped reactor units.
The method according to claim 1,
A support for fixing and supporting the laminated state while applying pressure to the uppermost and lowermost ends of the at least one plate-shaped material so that the plate-shaped materials are electrically contacted through respective connecting portions;
Further comprising a plurality of plate-like reactor units.
The method according to claim 1,
Wherein the at least one plate-shaped material is made of a conductive material.
The method according to claim 1,
Wherein the at least one plate-shaped workpiece has a shape in which one side is opened.
5. The method of claim 4,
Wherein the at least one plate-like material is in the form of a circular or elliptical shape.
The method according to claim 1,
Wherein the winding section is electrically connected by the connecting section and the gap is formed between the plate-like materials in a state where the one or more plate-like materials are stacked.
The method according to claim 6,
And an insulating material is inserted in each gap formed between the respective plate-like materials.
8. The method of claim 7,
Wherein the insulating material is a polyimide film.
The method according to claim 1,
Wherein the connecting portion is formed so as to protrude in a concavo-convex form for each plate-like workpiece.
delete (a) disposing a plate-shaped material having a connecting portion protruded on one side thereof;
(b) depositing an insulating material on the plate-like material;
(c) repeating the steps (a) and (b) to form a plurality of the plate-like materials, wherein the plurality of plate-shaped materials are electrically contacted with each other to form a winding part; And
(d) applying pressure to the uppermost and lowermost ends of the winding part to laminate the respective plate-shaped materials while being in electrical contact to form a winding part;
Lt; / RTI >
In the step (c), a cooling material is placed in an empty space formed by stacking the one or more plate-like materials, and a cooling material is placed around the winding part so as to surround the winding part, And the cooling water is cooled.
12. The method of claim 11,
Applying pressure to the uppermost and lowermost ends of the winding part to bring the respective plate-shaped materials into electrical contact, and fixing and supporting the laminated state;
Further comprising the steps of:
12. The method of claim 11,
Wherein the at least one plate-like material is made of a conductive material.
12. The method of claim 11,
Wherein the one or more plate-like materials have a shape in which one side is opened.
15. The method of claim 14,
Wherein the at least one plate-like material has a circular or oval shape.
12. The method of claim 11,
Wherein the connecting portion is formed to protrude in a concave-convex shape for each of the at least one plate-like workpiece.
12. The method of claim 11,
Wherein the insulating material is a polyimide film in the step (b).
12. The method of claim 11,
Wherein the step (c) comprises the step of electrically connecting the one or more plate-like materials in a laminated state, and forming a gap between the plate-shaped materials.
19. The method of claim 18,
The insulation material is inserted in each gap formed between the plate-like materials, and the insulation material inserted at intervals formed between the plate-like materials is inserted into the space between the plate- Wherein the first electrode is made of a material having better insulation property.

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