KR101859265B1 - Vacuum insulation panel and method for manufacturing the same - Google Patents

Abstract

A vacuum insulator according to the present invention comprises: a core material; And a sealing member into which the core material is inserted, wherein the sealing member is composed of a pair of upper and lower shells and a pair of side wall shells, and the upper and lower outer side faces of the side wall shells are respectively connected to the left and right And fused to the inner side.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum insulation panel,

The present invention relates to a vacuum insulation material having a core in a pouch-shaped casing material and a method of manufacturing the vacuum insulation material, and more particularly to a vacuum insulation material improved in heat insulation by preventing a margin portion from being formed on a casing material, will be.

Vacuum insulation material is a material that shows the excellent heat insulation performance more than five times compared with existing oil / inorganic insulation materials by blocking the convection inside the insulation by vacuuming the inside of the insulation. Hereinafter, a conventional vacuum insulator will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a vacuum insulator prior to folding, Fig. 2 is a sectional view of a vacuum insulator cut along the line AA shown in Fig. 1 after folding, Fig. to be.

As shown in FIGS. 1 and 2, a general vacuum insulator 10 includes a core material 12 and a sealing member 11 (serving as a sheathing member) which has a multi-layered film structure and surrounds the core material. And a gas adsorbent (getter) 13 for removing gas components flowing into the sealing member 11.

The sealing member 11 is made 1 to 80 mm larger than the core member size so that the core member 12 can be easily inserted into the sealing member 11. Due to this difference in size, The joint D1 is left as a margin. Conventionally, such a margin portion is folded and folded in an envelope for the continuous installation of the vacuum insulator.

In the case of a quadrangular vacuum insulator, margin portions are respectively formed on four sides. In the general method of manufacturing a vacuum insulator, the margin portions of the four sides are all folded in an envelope folding manner. Such a folded margin portion has a disadvantage in that it has a disadvantageous structure against heat bridging performance, and cracks are generated at the corner portions which are double folded, resulting in deterioration of long-term durability and high defect rate due to micro leakage and moisture permeation.

In order to solve such a problem, Korean Patent Laid-Open Publication No. 2001-0013067 discloses a structure in which only two spaced apart sides are folded as shown in Fig. 2, and the end portion thereof is fixed with a tape 14, It is true.

Korean Patent Publication No. 2012-0013067

In the present invention, the sealing member is in the form of a pouch composed of a pair of upper and lower shells and a pair of side wall shells, and a marginal portion protruding to the outside is not formed, A vacuum insulator having improved heat insulation property and a method of manufacturing the same.

A vacuum insulator according to the present invention comprises: a core material; And a sealing member into which the core material is inserted, wherein the sealing member is composed of a pair of upper and lower shells and a pair of side wall shells, and the upper and lower outer side faces of the side wall shells are respectively connected to the left and right And fused to the inner side.

Wherein the upper and lower sheathing members are constituted by a vertical adhesive layer laminated on the surface of the core material and a vertical single layer or a top and bottom protective layer laminated on the surface of the vertical adhesive layer and in contact with the core material or the sidewall covering material The non-welded portions are welded to each other with mutually facing upper and lower weld layers.

Wherein the upper and lower sheathing members comprise upper and lower fusion layers laminated on the surface of the core member, upper and lower fault layers laminated on the surface of the upper and lower fusion layers, and upper and lower protective layers laminated on the surface of the upper and lower fault layers, The core or the portion that is not in contact with the side wall sheath member is fused with other upper and lower fusion layers facing each other.

Wherein the sidewall covering material comprises an inner fused layer laminated on the surface of the core material, a sidewall blocking layer or a sidewall protecting layer laminated on the surface of the inner fused layer, and a lamination layer laminated on the surface of the sidewall blocking layer or the sidewall protecting layer, And an outer fusion layer fused to left and right sides of the layer, and front and rear sides of the side wall cover material are folded and fused in a zigzag pattern.

Wherein the sidewall covering material comprises an inner fused layer laminated on the surface of the core material, a sidewall blocking layer laminated on the surface of the inner fused layer, a sidewall protecting layer laminated on the surface of the sidewall blocking layer, And an outer fused layer laminated on the left and right sides of the upper and lower fused layers, and the front and rear sides of the side wall fenders are folded and fused in a zigzag pattern.

A method for manufacturing a vacuum insulator according to the present invention comprises the steps of providing a pair of upper and lower shell materials horizontally laid down and a pair of side wall shell materials vertically erected and then joining the upper and lower outer surfaces of the pair of side wall shell materials together The sealing member is manufactured by inserting the core member into the inner side of the sealing member, the air in the sealing member is discharged, and the opening of the sealing member is sealed.

Wherein the upper and lower sheathing members are constituted by a vertical adhesive layer laminated on the surface of the core material and a vertical single layer or a top and bottom protective layer laminated on the surface of the vertical adhesive layer and in contact with the core material or the sidewall covering material The non-welded portions are welded to each other with mutually facing upper and lower weld layers.

Wherein the upper and lower sheathing members comprise upper and lower fusion layers laminated on the surface of the core member, upper and lower fault layers laminated on the surface of the upper and lower fusion layers, and upper and lower protective layers laminated on the surface of the upper and lower fault layers, The core or the portion that is not in contact with the side wall sheath member is fused with other upper and lower fusion layers facing each other.

Wherein the sidewall covering material comprises an inner fused layer laminated on the surface of the core material, a sidewall blocking layer or a sidewall protecting layer laminated on the surface of the inner fused layer, and a lamination layer laminated on the surface of the sidewall blocking layer or the sidewall protecting layer, And an outer fusion layer fused to left and right sides of the layer, and front and rear sides of the side wall cover material are folded and fused in a zigzag pattern.

Wherein the sidewall covering material comprises an inner fused layer laminated on the surface of the core material, a sidewall blocking layer laminated on the surface of the inner fused layer, a sidewall protecting layer laminated on the surface of the sidewall blocking layer, And an outer fused layer laminated on the left and right sides of the upper and lower fused layers, and the front and rear sides of the side wall fenders are folded and fused in a zigzag pattern.

The step of inserting the core member into the sealing member is configured to insert the sealing member into the sealing member after the core member is compressed.

The vacuum insulator according to the present invention is characterized in that the sealing member is in the form of a pouch constituted by a pair of upper and lower shell members and a pair of side wall shell members and is not provided with a margin portion protruding to the outside, It is possible to obtain the maximum core material as much as possible, and the part folded outwardly from the outer material is eliminated, thereby maximizing the heat insulation.

Further, by using the method of manufacturing a vacuum insulation material according to the present invention, it is possible to introduce a large amount of core material in comparison with the standard of the sealing material, thereby improving the individual heat insulation property of the unit vacuum insulation material, And the heat bridging phenomenon is improved.

Fig. 1 is a perspective view of a vacuum insulator prior to folding, Fig. 2 is a sectional view of a vacuum insulator cut along the line AA shown in Fig. 1 after folding, Fig. to be.
3 and 4 are an exploded view and a perspective view of the vacuum insulator according to the present invention.
5 and 6 are sectional views of a vacuum insulator according to the present invention, FIG. 5 is a sectional view taken along the line BB shown in FIG. 4, and FIG. 6 is a sectional view taken along the line CC shown in FIG.
7 is an enlarged cross-sectional view of the upper and lower shell members and the side wall shell member constituting the sealing member.
8 and 9 are an exploded perspective view and a cross-sectional view of a manufacturing apparatus for manufacturing a vacuum insulator according to the present invention.
FIGS. 10 to 12 sequentially illustrate an embodiment of the vacuum insulation material manufacturing process according to the present invention.

Hereinafter, a vacuum insulator according to the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

FIGS. 3 and 4 are an exploded view and a perspective view of a vacuum insulator according to the present invention, FIGS. 5 and 6 are sectional views of a vacuum insulator according to the present invention, FIG. 5 is a cross- And FIG. 6 is a cross-sectional view taken along the line CC shown in FIG.

The vacuum insulator 100 according to the present invention is configured such that the core member 120 is drawn into the pouch-shaped sealing member 110 and then the interior of the sealing member 110 is vacuumed to have a heat insulating property higher than a reference value, It is possible to increase the size of the core member 120 that is drawn into the sealing member 110 and prevent thermal bridging so that the heat insulating property can be remarkably improved have.

That is, in the vacuum insulator 100 according to the present invention, the sealing member 110 into which the core member 120 is inserted is composed of a pair of upper and lower shell members 112 and a pair of side wall shell members 114, The upper and lower outer side surfaces of the side wall covering material 114 are respectively fused to the left and right inner side surfaces of the pair of upper and lower cover materials 112 as shown in FIGS.

When the upper and lower portions are bent 90 degrees so that the side wall covering material 114 has a "C" shape, a portion where the upper and lower covering materials 112 and the side wall covering material 114 are laminated and fusion- And is not in contact with the core member 120, and does not have a margin portion to be treated separately, so that the heat bridging phenomenon does not occur. Since the sealing member 110 according to the present invention can change the inner space according to the standard of the core member 120 without concern about the formation of the margin portion, when the core member having a larger standard than the conventional one is used, A height effect can be obtained.

Glass wool, fumed silica, or urethane foam may be used as the core 120 of the vacuum insulation panel 100 according to an embodiment of the present invention. The vacuum insulator 100 may further include a gas adsorbent 130 for removing gas flowing into the sealing member 110. The gas adsorbent 130 may be CaO (calcium oxide), a metal powder, a mixture of calcium oxide and metal powder, silica gel or zeolite, but is not limited thereto.

The sealing member 110 included in the present invention is not provided on the other side, for example, the front side and the rear side, since the side wall covering material 114 is provided only on one side, As shown in Fig. 4, the pair of upper and lower shell materials 112 are welded to each other in front and rear. Of course, only the portions of the pair of upper and lower fusing layers 112 that are not in contact with the core 120 and the sidewall cover 114 will be fused to each other. At this time, the front and rear sides of the side wall covering material 114 are folded and fused in a zigzag pattern as shown in an enlarged view of Fig. The outer surface of the side wall covering material 114 is fused to the top and bottom covering materials 112 and the inner side surface of the side wall covering material 114 is folded and fused in a zigzag pattern. Both of the outer side surface and the inner side surface thereof are provided with a fusion layer.

On the other hand, since only the inner surface of the upper and lower shell members 112 is fused to the side wall shell member 114, the upper and lower shell members 112 are provided with a fusion layer only on the inner side. The structure in which the fused layers are provided on the sidewall outer cover 114 and the outer cover 112 will be described in detail with reference to FIG.

In order to manufacture the vacuum insulator 100 according to the present invention, a pair of upper and lower shell members 112 horizontally laid out and a pair of side wall shell members 114 vertically standing are provided, The outer surface of the upper and lower portions of the side wall covering material 114 is fused to the inner side surfaces of the upper and lower outer covering materials 112 to form the sealing member 110 and the core member 120 is formed inside the sealing member 110, To seal the opening of the sealing member 110 after the air in the sealing member 110 is discharged (more specifically, after the inside of the sealing member 110 is evacuated).

At this time, since the core member 120 is manufactured by blowing the glass fiber manufactured by the high-speed centrifugal method, a plurality of air layers are included therein. The core member 120 must be drawn into the encapsulation member 110 in a compressed state in order to enhance the adiabatic effect with respect to the standard of the vacuum insulator 100. The core member 120 may be formed by compressing the core member 120, The sealing member 110 may be manufactured in a large size because the core member 120 is restored to have a predetermined volume when a time difference occurs between the process of drawing the sealing member 110 into the sealing member 110 and the sealing member 110.

However, if the sealing member 110 is made large enough to allow the core member 120 having a predetermined volume to be smoothly drawn in as described above, the air inside the sealing member 110 may be discharged, A portion where the sealing member 110 is folded may be generated in the process of compressing the sealing member 110, resulting in a problem that the heat insulating property is deteriorated. The vacuum insulator 100 according to the present invention can reduce the size of the sealing member 110 by drawing the core member 120 into the sealing member 110 in a compressed state, Improvement can be expected.

8 and 9 may be used to pull the core member 120 in the compressed state as it is into the sealing member 110. The apparatus for manufacturing the vacuum insulating material 100 The process of manufacturing the vacuum insulator 100 will be described in detail with reference to the accompanying drawings.

7 is an enlarged cross-sectional view of the upper and lower shell members and the side wall shell member constituting the sealing member.

The sealing member 110 included in the present invention is composed of a pair of upper and lower shell members 112 surrounding a single core member 120 and a pair of side wall shell members 114. The upper and lower shell members 112 And the sidewall covering material 114 may have a multi-layer structure as described below.

≪

The upper and lower shell member 112 includes a top and bottom fused layer 112a stacked on the surface of the core member 120, a top and bottom fault layer 112b stacked on the surface of the top and bottom fused layer 112a, And the upper and lower protective layers 112c are laminated on the surface of the upper protective layer 112c.

The upper and lower protection layers 112c protect the upper and lower fault layers 112b as the outermost layers of the upper and lower shell materials 112 and prevent the vacuum insulation material 100 from being damaged from external impact or scratches. The upper and lower protective layers 112c may be formed of one or more layers, and each layer may be formed of at least one of nylon, polyethylene terephthalate (PET), inorganic-vapor-deposited polyethylene terephthalate, oriented polypropylene (OPP), ethylene vinyl alcohol , Inorganic-vapor-deposited ethylene vinyl alcohol, polyvinyl alcohol (PVOH), inorganic-deposited polyvinyl alcohol (PVOH), ORMOCER and inorganic-deposited ORMOCER. The inorganic material used for the deposition may be aluminum (Al), aluminum oxide (AlOx), silicon (Si), or silicon oxide (SiOx), and the deposition thickness may be 100 to 1000 angstroms. The thickness of the upper and lower protective layers may be a thickness, for example, 5 to 30 占 퐉, specifically 10 to 25 占 퐉, which is typically applied to a vacuum insulation material without particular limitation.

The upper and lower fault layers 112b serve to prevent the vacuum insulation material 100 from flowing. As the upper and lower fault layer 112b, an inorganic-vapor deposition film, an aluminum thin film or an ORMOCER may be used. The inorganic-vapor deposition film may be an inorganic-vapor deposited polyethylene terephthalate, an inorganic vapor-deposited ethylene vinyl alcohol, Alcohol (PVOH) and inorganic-deposition oleocer (ORMOCER). The inorganic material used for the deposition may be aluminum (Al), aluminum oxide (AlOx), silicon (Si), or silicon oxide (SiOx), and the deposition thickness may be 100 to 1000 angstroms. In addition, the inorganic-vapor-deposited film may be provided in accordance with at least one of the cost and the desired characteristics of the final product. The thickness of the upper and lower fault layers may be a thickness typically applied to the vacuum insulation material, for example, 3 to 30 탆, specifically 5 to 20 탆, without particular limitation.

The upper and lower protective layer 112c and the upper and lower fault layers 112b may be added or removed depending on the purpose, and there is no particular limitation on the order of lamination.

The upper and lower fusing layer 112a is the innermost layer of the upper and lower shell material 112 and is a layer which is in close contact with the core material 120 and functions as a sealing material to enable thermal fusion with the side wall covering material 114. [ The material of the upper and lower fusing layer 112a is not particularly limited as long as it is commonly used for the vacuum insulation material 100. Specifically, a linear low density polyethylene (LLPDE) film or a cast polypropylene (CPP) film can be used. The thickness of the fusing layer may be a thickness, for example, 20 to 100 mu m, specifically 30 to 75 mu m, which is typically applied to the vacuum insulation material 100 without particular limitation.

In an embodiment of the present invention, the sealing member 110 may further include additional layers that impart specific properties as needed. Further, each interlaminar bond in the multi-layer structure can be carried out using an adhesive commonly used in the art, for example, a urethane adhesive. There is no particular limitation on the bonding method, and the vacuum insulator 100 may be of a type commonly used, for example, gravure, direct, reverse, dry lamination or the like.

≪ Side wall skin material &

The side wall covering material 114 includes an inner fusion layer 114a laminated on the surface of the core member 120, a side wall barrier layer 114b laminated on the surface of the inner fusion layer 114a, A side wall protective layer 114c laminated on the surface of the side wall protective layer 114b and an outer fused layer 114b laminated on the surface of the side wall protective layer 114c and fused to the left and right upper and lower fusing layers 112a of the upper and lower shell materials 112 114d.

The outer fused layer 114d serves as an outermost layer of the side wall covering material 114 and serves to enable thermal fusion with the upper and lower covering materials 112. [ The material of the outer fused layer 114d is not particularly limited as long as it is commonly used for the vacuum insulation material 100. Specifically, a linear low density polyethylene (LLPDE) film or a cast polypropylene (CPP) film may be used. The thickness of the outer fused layer 114d may be a thickness typically applied to the vacuum insulation material 100, for example, 20 to 100 占 퐉, specifically 30 to 75 占 퐉, without particular limitation.

The side wall protection layer 114c protects the side wall barrier layer 114b and prevents the vacuum insulation material 100 from being damaged from external impact or scratches. The side wall protection layer 114c may be composed of one or more layers, and each layer may be formed of one or more layers selected from the group consisting of nylon, polyethylene terephthalate (PET), inorganic-deposited polyethylene terephthalate, oriented polypropylene (OPP), ethylene vinyl alcohol , Inorganic-vapor-deposited ethylene vinyl alcohol, polyvinyl alcohol (PVOH), inorganic-deposited polyvinyl alcohol (PVOH), ORMOCER and inorganic-deposited ORMOCER. The inorganic material used for the deposition may be aluminum (Al), aluminum oxide (AlOx), silicon (Si), or silicon oxide (SiOx), and the deposition thickness may be 100 to 1000 angstroms. The thickness of the side wall protective layer 114c may be a thickness typically applied to the vacuum insulation material, for example, 5 to 30 占 퐉, specifically 10 to 25 占 퐉, without particular limitation.

The sidewall barrier layer 114b prevents the vacuum insulation material 100 from being vented. As the sidewall barrier layer 114b, an inorganic-deposited film, an aluminum thin film, or an ORMOCER may be used. The inorganic-deposited film may be an inorganic-deposited polyethylene terephthalate, an inorganic-deposited ethylene vinyl alcohol, Polyvinyl alcohol (PVOH), and inorganic-deposition oleocer (ORMOCER). The inorganic material used for the deposition may be aluminum (Al), aluminum oxide (AlOx), silicon (Si), or silicon oxide (SiOx), and the deposition thickness may be 100 to 1000 angstroms. In addition, the inorganic-vapor-deposited film may be provided in accordance with at least one of the cost and the desired characteristics of the final product. The thickness of the sidewall barrier layer 114b may be a thickness typically applied to the vacuum insulation material, for example, 3 to 30 占 퐉, specifically, 5 to 20 占 퐉, without particular limitation.

The sidewall protective layer 114c and the sidewall barrier layer 114b may be added or removed depending on the purpose, and the order of lamination is not particularly limited.

The inner fusing layer 114a is the innermost layer of the side wall covering material 114. When the side wall covering material 114 is folded in a staggered pattern as shown in the enlarged view of Fig. 6, It is possible to make it possible. The material of the inner fusion layer 114a is not particularly limited as long as it is commonly used in the vacuum insulation material 100. Specifically, a linear low density polyethylene (LLPDE) film or a cast polypropylene (CPP) film may be used. The thickness of the outer fused layer 114d may be a thickness typically applied to the vacuum insulation material 100, for example, 20 to 100 占 퐉, specifically 30 to 75 占 퐉, without particular limitation.

In one embodiment of the present invention, the sidewall cover material 114 may further include additional layers that impart specific properties as needed. Further, each interlaminar bond in the multi-layer structure can be carried out using an adhesive commonly used in the art, for example, a urethane adhesive. There is no particular limitation on the bonding method, and the vacuum insulator 100 may be of a type commonly used, for example, gravure, direct, reverse, dry lamination or the like.

FIGS. 8 and 9 are an exploded perspective view and a cross-sectional view of a manufacturing apparatus for manufacturing a vacuum insulator according to the present invention, and FIGS. 10 to 12 sequentially illustrate an embodiment of a vacuum insulator manufacturing process according to the present invention.

The vacuum insulator 100 manufacturing apparatus for fabricating the vacuum insulator 100 according to the present invention includes a process of compressing the core member 120 and a process of pulling the compressed core member 120 into the encapsulation member 110 So as to prevent the phenomenon that the compressed core member 120 is recovered to be swollen.

That is, the apparatus for manufacturing the vacuum insulator 100 includes a plate-shaped jig panel 200 on which a core 120 can be seated on an upper surface (see FIG. 10), a core member 120 seated on the upper surface of the jig panel 200, (Not shown in Fig. 9) of the jig panel 200 and the other three edges of the jig panel 200 are tightly coupled to the jig panel 200. The compression film 300 is disposed between the jig panel 200 and the compression film 300, And a pressing unit 500 for pushing the core member 120 compressed by the vacuum pump 400 to one side and discharging the pressed core member 120 to one side.

The jig panel 200 and the compression film 300 have a rectangular planar shape. However, the jig panel 200 and the compression film 300 are provided with the core 120 between the jig panel 200 and the compression film 300, And can be applied to any shape as long as the core member 120 can be pulled out through one open side of the compression film 300. The compression film 300 has a certain degree of ductility so that it can be brought into close contact with the outer surface of the core member 120 when a vacuum pressure is generated between the jig panel 200 and the compression film 300, It should be made of a material having a strength not less than a reference value so as not to be damaged or deformed by the pressing force of the base plate 500.

When the vacuum pump 400 is operated after placing the core member 120 between the upper surface of the jig panel 200 and the bottom surface of the compression film 300, air between the jig panel 200 and the compression film 300 is discharged to the outside And the core member 120 positioned between the jig panel 200 and the compression film 300 is compressed by the vacuum pressure. When the compression of the core member 120 is completed, the compression unit 500 pushes the core member 120 to one side (right side in FIG. 9) of the compression film 300 that is not attached to the jig panel 200, 200 and the compression film 300 are discharged to the outside of the jig panel 200 and the compression film 300. A part of the compression film 300 is tightly coupled to the jig panel 200 because the compression film 300 is pushed together with the core 120 in the process of pushing and discharging the core 120. [ The three edges of the compression film 300 except for one side from which the core member 120 is discharged may be tightly coupled to the jig panel 200 and the other side of the core panel 120 on which the core member 120 is discharged , Only the other side edge may be tightly coupled to the jig panel 200.

The core member 120 discharged to the outside of the jig panel 200 and the compression film 300 is introduced into the pouch-shaped sealing member 110 arranged in advance. When the core member 120 is kept compressed, It is not necessary to enlarge the sealing member 110 and the thermal conductivity of the vacuum insulating material 100 can be lowered by reducing the margin of the sealing member 110. [

10, when the vacuum insulator 100 is manufactured by the method of manufacturing the vacuum insulator 100 according to the present invention, a core material (not shown) is first formed on the upper surface of the jig panel 200, And the vacuum pump 400 compresses the core 120 by reducing the space between the compression film 300 and the jig panel 200 as shown in FIG.

At least one suction hole 210 is formed in the jig panel 200 at a position where the core member 120 is not seated in the space covered with the compression film 300. The vacuum pump 400 may include a suction hole It is possible to form a vacuum between the jig panel 200 and the compression film 300 by discharging the air between the jig panel 200 and the compression film 300 to the outside through the opening 210, ) Can be compressed. Although the suction holes 210 for discharging the air between the jig panel 200 and the compression film 300 are formed on the jig panel 200 in this embodiment, The air between the jig panel 200 and the compression film 300 can be discharged even if the compression film 300 is formed. When the air intake hole 210 is formed in the compression film 300, the compression film 300 may be made of a material having ductility within a set range and capable of withstanding repeated compressive stresses. For example, the compression film 300 may be formed of a nylon film, a polyethylene terephthalate (PET) film, an ethylene vinyl alcohol (EVOH) film, or the like. This is because the compression film 300 can be brought into close contact with the outer surface of the core member 120 while the air between the jig panel 200 and the compression film 300 is discharged, This is to prevent damage.

When the air between the jig panel 200 and the compression film 300 is discharged by the vacuum pump 400 when the compression film 300 is mounted on the upper surface of the jig panel 200, One side of the film 300 rides on the side surface of the core member 120 and the degree of vacuum between the jig panel 200 and the compression film 300 can be released. The compression film 300 is extended by about 10 to 20 cm longer than one end of the jig panel 200 so that one side of the compression film 300 can be seated on the bottom surface of the jig panel 200 after one end of the jig panel 200 is wrapped. . When the vacuum pump 400 discharges the air between the jig panel 200 and the compression film 300 in a state where one side of the compression film 300 is seated on the bottom surface of the jig panel 200, The degree of vacuum between the jig panel 200 and the compression film 300 can be stably maintained even if one side of the core panel 300 is pulled apart from the jig panel 200. As a result, Can be compressed.

The apparatus for manufacturing the vacuum insulation material 100 includes an intake line 410 having one end coupled to the intake hole 210 and the other end connected to the vacuum pump 400, The intake line 410 is not limited to the pipe shape shown in the present embodiment but may be replaced with various ducts or chambers. That is, the intake line 410 can be replaced with any shape and structure as long as it can discharge the air between the jig panel 200 and the pressure film to the outside by the vacuum pressure generated in the vacuum pump 400 .

12, after the opening of the sealing member 110 having the pouch shape is directed toward the core member 120, the core member 120 is sealed to the sealing member (not shown) by the pressing unit 500, 110 so that the core member 120 is drawn into the sealing member 110. Since the compression film 300 is fixed to the jig panel 200 and is not transported along the core member 120 when the core member 120 is pushed to one side by the compression unit 500, One side of the compression film 300 seated on the bottom of the compression film 300 is pressed by the conveyed core member 120 and spreads to be positioned above the jig panel 200. The core member 120 is drawn out of the compression film 300 .

At this time, if the frictional force between the upper surface of the jig panel 200 and the core member 120 is large, the core member 120 can not be smoothly conveyed even if the pressing unit 500 presses the core member 120, 200) is preferably made smooth. For example, on the upper surface of the jig panel 200, a material having a coefficient of friction lower than a reference value such as boron oxide, graphite oxide, or molybdenum oxide may be coated, or a friction reducing film may be applied or attached. Of course, if the upper surface friction coefficient of the jig panel 200 can be reduced, the material and film provided on the upper surface of the jig panel 200 can be replaced with various kinds.

The core member 120 drawn out between the jig panel 200 and the compression film 300 is separated from the sealing member 110 when the outlet side of the compression film 300 is separated from the opening of the sealing member 110, A certain period of time elapses until the core 120 is pulled in. This causes a problem that the core 120 is inflated to some extent by the restoring elastic force. The apparatus for manufacturing a vacuum insulation panel 100 according to the present invention is configured such that the core member 120 is drawn into the sealing member 110 immediately after being drawn out from between the jig panel 200 and the compression film 300, The pressing unit 500 is positioned such that one side of the jig panel 200 and the compression film 300 (more specifically, the side from which the core member 120 is discharged) It is preferable that the core member 120 is pushed and transported.

The pressing unit 500 may be driven by a cylinder or by a separate linear motor as long as the pressing unit 500 can reciprocate in a direction parallel to the upper surface of the jig panel 200. That is, the pressure unit 500 configured to reciprocate in one direction is commercially available in various structures in the technical field of the present invention, and a detailed description of the pressure unit 500 will be omitted.

As described above, the jig panel 200 and the side of the compression film 300 (more specifically, the side from which the core member 120 is pulled out from between the jig panel 200 and the compression film 300) The core member 120 may be inserted into the sealing member 110 immediately after being drawn out from between the jig panel 200 and the compression film 300. When the compression member 500 is pushed, It is possible to reduce the size of the sealing member 110 and thus to eliminate the folding portion of the sealing member 110 and to effectively lower the thermal conductivity of the vacuum insulating material 100. [

When the core member 120 is drawn into the sealing member 110, the air inside the sealing member 110 is discharged to compress the core member 120 once again, and then the opening of the sealing member 110 is sealed. At this time, the process of discharging the air inside the sealing member 110 and the process of sealing and sealing the opening of the sealing member 110 are performed in a separate vacuum chamber. In this way, in the inside of the sealing member 110 The process of discharging air of the sealing member 110 and the process of fusing the sealing member 110 are substantially the same as those of the conventional method of manufacturing the vacuum insulator 100. The structure of the vacuum chamber and the bonding of the sealing member 110 A detailed description thereof will be omitted.

Hereinafter, the present invention will be described more specifically with reference to Comparative Examples and Examples. It is apparent to those skilled in the art that these comparative examples and examples are only for illustrating the present invention, and the scope of the present invention is not limited thereto.

Comparative Example  One

As shown in FIGS. 1 and 2, the core material including the gas adsorbent was compressed in a plate shape, put between a pair of upper and lower shell materials and sealed, and then the four sides of the upper and lower shell materials were folded to produce a vacuum insulation material.

At this time, the layer structure of the upper and lower shell materials is as shown in Table 1 below. A mixture (5%) of zirconium, manganese, titanium, barium, iron, cobalt, aluminum, nickel and chromium powder was used as the gas adsorbent, and binderless glass wool was used as the core material .

Example  One

As shown in Figs. 3 to 6, the core material including the gas adsorbent was low-vacuum-compressed, inserted into a pouch-shaped sealing member without a margin, and the opening was sealed to produce a vacuum insulation material.

The layer constitution of the upper and lower shell materials and the side wall shell material is shown in Table 1 below, and the gas adsorbent and core material are the same as those of Comparative Example 1. [

division Comparative Example 1 Example 1 Folding method 4 side folding Non-Folding Core compression Plate compression Low vacuum compression
Upper and lower sheath material
(탆)
Upper and lower protective layer Nylon 15 15 Upper and lower protective layer Nylon 25 25 Overhead and Over Fault Al 7 7 The upper and lower fusion layers LLDPE 50 50

Sidewall sheath material
(탆)
The outer fusing layer LLDPE - 50 Side wall barrier layer Vm-PET - 12 Side wall barrier layer Vm-PET - 12 Side wall barrier layer Vm-PET - 12 The inner fusion layer LLDPE - 50 Gas adsorbent CaO + metal oxide 2g 2g Product Size
(Mm) Length × width 290 x 410 290 x 410 thickness 12.4 12.5 Thermal conductivity
(mW / mK)
Center Thermal Conductivity 1.70 1.68 Effective thermal conductivity 6.45 4.80

Vm-PET: Aluminum-deposited polyethylene terephthalate (PET)

LLDPE: linear low density polyethylene

As can be seen from the experimental results of Table 1, the vacuum thermal insulator of Example 1 had a center thermal conductivity similar to that of the vacuum insulation material of Comparative Example 1, but the effective thermal conductivity was improved by 26% compared to Comparative Example 1. This is a result that the vacuum insulation according to the present invention having the sealing surface inside is improved in the bridging phenomenon by the reduction of the folding width and the reduction of the sealing width.

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 or scope of the invention. Do. 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 invention as defined by the appended claims.

Accordingly, the actual scope of the invention is defined by the appended claims and their equivalents.

100: vacuum insulator 110: sealing member
112: upper and lower sheath material 114: side wall sheath material
120: Core member 130: Gas adsorbent

Claims (11)

A core member and a sealing member into which the core member is inserted,
Wherein the sealing member is composed of a pair of upper and lower sheathing members and a pair of side wall sheathing members,
The upper and lower outer side surfaces of the side wall covering material are respectively fused to the left and right inner side surfaces of the pair of upper and lower outer covering materials,
Wherein the upper and lower sheathing members are composed of a top and bottom fused layer laminated on the surface of the core material and a top and bottom fault layer or a top and bottom protective layer laminated on the surface of the top and bottom fused layer,
The sidewall cover material may include an inner fusion layer laminated on the surface of the core material, a side wall barrier layer or a side wall protection layer laminated on the surface of the inner fusion layer, and a side wall barrier layer or a side wall protective layer, And an outer fused-adhesion layer fused to the outer fused layer,
Wherein a portion of the upper and lower fusion-bonded layers that is not in contact with the core material or the sidewall covering material is fused with another mutually opposed upper and lower fusion layers,
And the front and rear sides of the side wall covering material are folded and fused in a zigzag pattern. delete A core member and a sealing member into which the core member is inserted,
Wherein the sealing member is composed of a pair of upper and lower sheathing members and a pair of side wall sheathing members,
The upper and lower outer side surfaces of the side wall covering material are respectively fused to the left and right inner side surfaces of the pair of upper and lower outer covering materials,
Wherein the upper and lower sheathing members comprise upper and lower fused layers laminated on the surface of the core material, upper and lower fault layers laminated on the surface of the upper and lower fusion layers, and upper and lower protective layers laminated on the surface of the upper and lower fault layers,
Wherein the sidewall outer cover material comprises an inner fusion layer laminated on the surface of the core material, a sidewall barrier layer laminated on the inner fusion layer, a sidewall protection layer laminated on the surface of the sidewall barrier layer, And an outer fused layer which is fused to left and right sides of the upper and lower fused layers,
Wherein a portion of the upper and lower fusion-bonded layers that is not in contact with the core material or the sidewall covering material is fused with another mutually opposed upper and lower fusion layers,
And the front and rear sides of the side wall covering material are folded and fused in a zigzag pattern. delete delete A pair of upper and lower sheathing materials horizontally laid down and a pair of vertically standing side wall sheathing materials are fused and the upper and lower outer side surfaces of the pair of side wall sheathing materials are fused to the left and right inner side surfaces of the pair of upper and lower sheathing materials, A member is produced,
The method comprising: inserting a core material into the sealing member, discharging air in the sealing member, and sealing an opening of the sealing member;
Wherein the upper and lower sheathing members are composed of a vertical adhesive layer laminated on the surface of the core material, a vertical fault layer or an upper and lower protective layer laminated on the surface of the vertical adhesive layer,
The sidewall cover material may include an inner fusion layer laminated on the surface of the core material, a side wall barrier layer or a side wall protection layer laminated on the surface of the inner fusion layer, and a side wall barrier layer or a side wall protective layer, And an outer fused-adhesion layer fused to the outer fused layer,
Wherein a portion of the upper and lower fusion-bonded layers that is not in contact with the core material or the sidewall covering material is fused with another mutually opposed upper and lower fusion layers,
Wherein the front and rear sides of the side wall covering material are folded and fused in a zigzag pattern. delete A pair of upper and lower sheathing materials horizontally laid down and a pair of vertically standing side wall sheathing materials are fused and the upper and lower outer side surfaces of the pair of side wall sheathing materials are fused to the left and right inner side surfaces of the pair of upper and lower sheathing materials, A member is produced,
The method comprising: inserting a core material into the sealing member, discharging air in the sealing member, and sealing an opening of the sealing member;
Wherein the upper and lower sheathing members are constituted by a top and bottom fused layer laminated on the surface of the core member, a top and bottom fault layer laminated on the surface of the top and bottom fused layer, and a top and bottom protective layer laminated on the surface of the top fault and bottom fault layer,
Wherein the sidewall outer cover material comprises an inner fusion layer laminated on the surface of the core material, a sidewall barrier layer laminated on the inner fusion layer, a sidewall protection layer laminated on the surface of the sidewall barrier layer, And an outer fused layer which is fused to left and right sides of the upper and lower fused layers,
Wherein a portion of the upper and lower fusion-bonded layers that is not in contact with the core material or the sidewall covering material is fused with another mutually opposed upper and lower fusion layers,
Wherein the front and rear sides of the side wall covering material are folded and fused in a zigzag pattern. delete delete 9. The method according to claim 6 or 8,
Wherein the step of inserting the core member into the sealing member is configured to insert the sealing member into the sealing member after compressing the core member.

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