KR20110072790A - Groove type vacuum heat insulation material - Google Patents

Abstract

PURPOSE: A groove type vacuum heat insulation material and a manufacturing method thereof are provided to enable bending according to need while minimizing bending stress on an outer sheath. CONSTITUTION: A groove type vacuum heat insulation material comprises a substrate(110), core materials(120) of block shape which are placed at regular intervals on the upper side of the substrate and not adhered, and an outer sheath(130) comprising top and bottom films which are formed on the upper and lower sides of the substrate, respectively. The outer sheath encloses the substrate with the core materials in whole, wherein the top and bottom films are pressed to the core materials and the substrate.

Description

Groove type vacuum insulator and its manufacturing method {GROOVE TYPE VACUUM HEAT INSULATION MATERIAL}

Embodiments of the present invention relate to a groove type vacuum insulator and a method of manufacturing the same.

Conventional vacuum insulation material is used as a high efficiency next-generation insulation material by having a thermal conductivity of 8 times lower than general insulation material, but is manufactured in high vacuum board type (board type) is the main problem, and bending (bending) is difficult.

It is difficult to use vacuum insulators in areas that inevitably require bending, and it is used in combination with vacuum insulators through a process of supplementing vacuum insulators by filling general insulators.

Therefore, it is possible to maintain the performance of the vacuum insulator for a long time by minimizing stress on the outer cover material, and it is necessary to develop a groove type (groove type) vacuum insulator that can be easily bent and used as necessary.

In one embodiment of the present invention by covering the flexible substrate laminated with the core material processed in the pre-treatment block type with the outer cover material to produce a groove-type vacuum insulation, bending (bending) is possible and stress on the outer material even when bent The present invention provides a groove type vacuum insulation material and a method of manufacturing the same that can be easily bent and used as needed to maintain the performance of the vacuum insulation material for a long time compared to the conventional groove type vacuum insulation material by minimizing stress.

One embodiment of the present invention is a groove type vacuum insulation material and a method of manufacturing the same, which can solve the problem of the existing vacuum insulation material in which a crack is formed in the outer skin material during the press (press) to produce a groove (groove) To provide.

The problem to be solved by the present invention is not limited to the above-mentioned problem, another task (s) not mentioned will be clearly understood by those skilled in the art from the following description.

The groove type vacuum insulator according to the embodiment of the present invention comprises a plate-shaped substrate; A plurality of cores having a block-type shape and non-adhesively stacked on the upper surface of the substrate to be spaced apart from each other; And an upper film formed on an upper portion of the substrate on which the plurality of core materials are stacked, and a lower film formed on the lower portion of the substrate, wherein the plurality of core materials are formed to surround the entire laminated substrate. The lower film includes an outer cover material formed to be in close contact with the substrate and the core material.

The core material may include at least one selected from glass fiber, silica board, organic fiber, or organic foam.

The substrate may be formed in any one of a sheet, a mat, a paper, or a board.

When the substrate is formed in the sheet form, the substrate may include at least one selected from glass fabric, glass paper, and pulp paper.

When the substrate is formed in the mat shape, the substrate may include a glass fiber needle mat or an aerogel mat.

When the substrate is formed in the form of a board, the substrate may include a glass fiber board.

The outer cover material may include at least one selected from low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), chlorinated polypropylene (CPP) film, and orientated polypropylene (OPP) film.

The groove type vacuum insulator according to another embodiment of the present invention is a plate-shaped substrate; A plurality of cores having a block-type shape, adhesively stacked on the upper surface of the substrate, but stacked apart from each other; And an upper film formed on an upper portion of the substrate on which the plurality of core materials are stacked, and a lower film formed on the lower portion of the substrate, wherein the plurality of core materials are formed to surround the entire stacked substrate, wherein the upper film and The lower film includes an outer cover material formed to be in close contact with the substrate and the core material.

The core material may be laminated to adhere to the substrate using one selected from a needle, an inorganic binder, and an organic binder.

Method of manufacturing a groove-type vacuum insulator according to an embodiment of the present invention comprises the steps of: non-adhesive stacking a plurality of core materials spaced apart from each other on the upper surface of the substrate; Inserting the substrate having the plurality of core materials stacked therein into the inside of the envelope through an opening provided at one end of the envelope-shaped envelope; Extracting air in the shell material through the opening in the vacuum chamber to make a vacuum state; Sealing the opening in the vacuum state; And taking out the envelope material from the inside of the vacuum chamber.

The method for manufacturing a groove type vacuum insulator according to an embodiment of the present invention may include glass fiber, silica board, organic fiber, or organic foam before laminating the core material. The method may further include manufacturing the core having a shape of a block type using at least one selected from).

The method of manufacturing a groove type vacuum insulator according to an embodiment of the present invention may be performed in the form of a sheet, a mat, a paper, or a board before stacking the core material. It may further comprise forming a.

Forming the substrate may include forming the substrate in the form of a sheet using at least one selected from glass fabric, glass paper, or pulp paper. .

The forming of the substrate may include forming the substrate in the form of a mat by using a glass fiber needle mat or an aerogel mat.

Forming the substrate may include forming the board-shaped substrate by using a glass fiber board.

In the method of manufacturing a groove type vacuum insulator according to an embodiment of the present invention, before inserting the substrate into the shell material, low density polyethylene (LDPE), linear low density polyethylene (LDLPE), high density polyethylene (HDPE), The method may further include manufacturing the shell material using at least one selected from a chlorinated polypropylene (CPP) film and an oriented polypropylene (OPP) film.

Sealing the opening may include closing the opening of the envelope by heat fusion sealing.

According to another aspect of the present invention, there is provided a method of manufacturing a groove type vacuum insulator, comprising: stacking a plurality of core materials spaced apart from each other on an upper surface of a substrate to be bonded to an upper surface of the substrate; Inserting the substrate having the plurality of core materials stacked therein into the inside of the envelope through an opening provided at one end of the envelope-shaped envelope; Extracting air in the shell material through the opening in the vacuum chamber to make a vacuum state; Sealing the opening in the vacuum state; And taking out the envelope material from the inside of the vacuum chamber.

The laminating may include laminating the core material to be adhered to the substrate using one selected from a needle, an inorganic binder, and an organic binder.

Specific details of other embodiments are included in the detailed description and the accompanying drawings.

Advantages and / or features of the present invention and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

According to one embodiment of the present invention, by manufacturing a groove-type vacuum insulation material by covering the substrate laminated with the core material processed in the pretreatment block type with the outer shell material, bending (bending) is possible and the stress on the outer shell material during bending By minimizing stress, the performance of vacuum insulator can be maintained for a long time by minimizing stress on the outer skin material compared to conventional Groove Type vacuum insulator, and can be easily bent and used as needed.

According to an embodiment of the present invention, it is possible to solve the problem of the existing vacuum insulation material in which a crack is formed in the outer cover material during the pressing process to generate the grooves.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention;

1 is a perspective view of a groove type vacuum insulator according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1.

1 and 2, the groove type vacuum insulator 100 according to an embodiment of the present invention includes a substrate 110, a plurality of core members 120, and an envelope 130.

The substrate 110 is formed in a plate shape so that the plurality of core members 120 may be disposed on an upper surface thereof. That is, the substrate 110 may be formed in one of a sheet, a mat, a paper, or a board.

For example, the substrate 110 may be formed in a sheet form made of at least one selected from glass fabric, glass paper, and pulp paper.

As another example, the substrate 110 may be formed in the form of a mat made of a glass fiber needle mat or an aerogel mat. As another example, the substrate 110 may be formed in the form of a board made of a glass fiber board.

The plurality of core members 120 have a block type shape and are stacked on the upper surface of the substrate 110 to be spaced apart from each other. The core material 120 may include at least one selected from glass fiber, silica board, organic fiber, or organic foam.

In this case, the plurality of core materials 120 may be stacked without being bonded to the upper surface of the substrate 110. That is, the plurality of core materials 120 may be non-bonded and stacked on the upper surface of the substrate 110.

In addition, the plurality of core materials 120 may be bonded to and stacked on an upper surface of the substrate 110. That is, the plurality of core materials 120 may be stacked to adhere to the substrate 110 using one selected from a needle, an inorganic binder, or an organic binder.

For reference, the size, shape, separation distance, etc. of the core material 120 may be variously changed as necessary.

The envelope 130 is an upper film 131 formed on an upper portion of the substrate 110 on which the plurality of core materials 120 are stacked, and a lower film 132 formed on the lower portion of the substrate 110. Is configured, the plurality of core material 120 is formed so as to surround the entire stacked substrate 110, the upper film 131 and the lower film 132 is on the substrate 110 and the core material 120 It is formed to be in close contact.

The outer material 130 includes at least one selected from low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), chlorinated polypropylene (CPP) film, and oriented polypropylene (OPP) film. Can be done.

3 to 6 are manufacturing process diagrams for explaining the manufacturing method of the groove-type vacuum insulating material according to an embodiment of the present invention.

First, a plate-shaped substrate 110 and a plurality of core material 120 is provided.

The substrate 110 may be formed in any one form of a sheet, mat, paper, or board. That is, when the substrate 110 is formed in a sheet form, at least one selected from glass fabric, glass paper, and pulp paper may be used. In addition, when the substrate 110 is formed in a mat shape, a glass fiber needle mat or an airgel mat may be used. When the substrate 110 is formed in a board shape, Glass fiber boards can be used.

The core material 120 may be formed in a block type shape. When the core 120 is manufactured, at least one selected from glass fiber, silica board, organic fiber, or organic foam may be used as the material. .

Next, referring to FIG. 3, the plurality of core materials 120 are stacked on the upper surface of the substrate 110 to be spaced apart from each other. In this case, the plurality of core materials 120 may be stacked to be spaced apart from each other at a predetermined interval, and the separation interval may be changed in various ways such as constant or not constant as necessary.

In addition, when the plurality of core materials 120 are stacked, the core material 120 may be stacked without being bonded to an upper surface of the substrate 110. That is, the plurality of core materials 120 may be non-bonded and stacked on the upper surface of the substrate 110.

Meanwhile, the plurality of core materials 120 may be stacked to be bonded to the upper surface of the substrate 110. That is, by using one selected from a needle, an inorganic binder, or an organic binder, the plurality of core members 120 may be laminated to adhere to the substrate 110.

For example, the core material 120 may be stacked by placing the plurality of core materials 120 on the upper surface of the substrate 110 and sewing the needles with a needle. As another example, the core material 120 may be laminated in such a manner that an inorganic binder or an organic binder is applied to the plurality of core materials 120 and then adhered to the substrate 110.

Next, referring to FIG. 4, the outer shell material 130 is disposed on the substrate 110 on which the plurality of core materials 120 are stacked, through an opening 133 provided at one end of the envelop outer skin material 130. Insert inside of. Accordingly, the envelope material 130 is to wrap the substrate 110 in which the plurality of core material 120 is stacked. However, even at this time, the opening 133 remains at one end of the envelope 130.

Before inserting the substrate 110 into the envelope 130, the envelope 130 of the encapsulation type may be prepared in advance.

The outer cover material 130 is an upper film 131 formed to cover the upper portion of the substrate 110 on which the plurality of core materials 120 are stacked, and a lower film formed to cover the lower portion of the substrate 110 ( 132). The edges of the upper film 131 and the lower film 132 are sealed except for one end. Accordingly, the envelope 130 is formed in the form of an envelope having an opening 133 formed at one end thereof.

The outer cover material 130 is at least one selected from among linear density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), chlorinated polypropylene (CPP) film, and orientated polypropylene (OPP) film. Can be prepared.

Next, referring to FIG. 5, after placing the envelope 130 inside the vacuum chamber 510, the air inside the envelope 130 is drawn out through the opening 133 to be in a vacuum state. At this time, it is preferable to extract the air and depressurize until the degree of vacuum inside the shell 130 becomes about 10 pascals.

Next, the opening 133 of the shell material 130 is sealed in the vacuum chamber 510. At this time, it is preferable to finish the opening 133 of the envelope 130 by heat sealing in a state in which the inside of the envelope 130 is vacuum.

Accordingly, the envelope 130 is in a state in which all of its edges are sealed as shown in FIG. 6.

Next, the envelope 130 is taken out of the vacuum chamber 510. Then, the vacuum inside the envelope 130 is released by the external pressure (atmospheric pressure), and the envelope 130 is retracted accordingly to closely adhere to the substrate 110 and the core 120 (FIG. 1 and 2).

As such, according to an embodiment of the present invention, by manufacturing a groove-type vacuum insulation material by covering the substrate laminated with the core material processed into a pretreatment block type with an outer shell material, a vacuum insulation material is minimized by minimizing stress on the outer shell material. It can maintain its performance for a long time and can be easily bent and used as needed.

In addition, according to an embodiment of the present invention, it is possible to solve the problem of the existing vacuum insulation material in which a crack is formed in the outer cover material during the pressing process to generate the grooves.

Figure 7 shows an actual picture of the groove-type vacuum insulator according to an embodiment of the present invention, Figure 8 shows an actual picture of the bent groove type vacuum insulation in accordance with an embodiment of the present invention.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by the equivalents of the claims.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a perspective view of a groove type vacuum insulator according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1.

3 to 6 are manufacturing process diagrams for explaining the manufacturing method of the groove-type vacuum insulating material according to an embodiment of the present invention.

Figure 7 shows the actual picture of the groove-type vacuum insulator according to an embodiment of the present invention.

Figure 8 shows the actual picture of the bent groove type vacuum insulation material according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: substrate

120: heartwood

130: shell material

131: top film

132: lower film

133: opening

Claims (19)

Plate-shaped substrates; A plurality of cores having a block-type shape and non-adhesively stacked on the upper surface of the substrate to be spaced apart from each other; And The upper film is formed on an upper portion of the substrate laminated with the plurality of core materials, and the lower film formed on the lower portion of the substrate, the plurality of core materials are formed to surround the entire stacked substrate, the upper film and the Outer material formed such that a lower film is in close contact with the substrate and the core material Groove type vacuum insulation material comprising a. The method of claim 1, The heartwood is A groove type vacuum insulation material comprising at least one selected from glass fiber, silica board, organic fiber, or organic foam. The method of claim 1, The substrate is A groove type vacuum insulator, characterized in that formed in the form of any one of a sheet, a mat, a paper, or a board. The method of claim 3, wherein The substrate is When formed in the sheet form, a groove type vacuum insulation material, characterized in that it comprises at least one selected from glass fabric (glass fabric), glass paper (glass paper), or pulp paper (pulp paper). The method of claim 3, wherein The substrate is When formed in the form of a mat, a groove type vacuum insulation material comprising a glass fiber needle mat (glass fiber needle mat) or an airgel mat (aerogel mat). The method of claim 3, wherein The substrate is When formed in the form of a board, a groove type vacuum insulation material comprising a glass fiber board (glass fiber board). The method of claim 1, The shell material is Groove type, characterized in that it comprises at least one selected from Linear Density PolyEthylene (LDPE), Linear Low Density PolyEthylene (LLDPE), High Density PolyEthylene (HDPE), Chlorinated Polypropylene (CPP) film, or Oriented Polypropylene (OPP) film Vacuum insulation. Plate-shaped substrates; A plurality of cores having a block-type shape and adhesively stacked on the upper surface of the substrate, the cores being spaced apart from each other; And The upper film is formed on an upper portion of the substrate laminated with the plurality of core materials, and the lower film formed on the lower portion of the substrate, the plurality of core materials are formed to surround the entire stacked substrate, the upper film and the Outer material formed such that a lower film is in close contact with the substrate and the core material Groove type vacuum insulation material comprising a. The method of claim 8, The heartwood is Groove type vacuum insulator, characterized in that laminated to adhere to the substrate using one selected from a needle, an inorganic binder, an organic binder. Bonding a plurality of cores on the upper surface of the substrate to be spaced apart from each other; Inserting the substrate having the plurality of core materials stacked therein into the inside of the envelope through an opening provided at one end of the envelope-shaped envelope; Extracting air in the shell material through the opening in the vacuum chamber to make a vacuum state; Sealing the opening in the vacuum state; And Taking out the envelope material to the outside in the vacuum chamber; Method for producing a groove-type vacuum insulation material comprising a. The method of claim 10, Before the core material is laminated, the block-shaped shape may be formed using at least one selected from glass fiber, silica board, organic fiber, or organic foam. Steps to manufacture the core Method of manufacturing a groove-type vacuum insulation material further comprising a. The method of claim 10, Prior to laminating the core material, forming the substrate in the form of a sheet, a mat, or a board Method of manufacturing a groove-type vacuum insulation material further comprising a. The method of claim 12, Forming the substrate Forming the sheet-like substrate using at least one selected from glass fabric, glass paper, and pulp paper. Method for producing a groove-type vacuum insulation material comprising a. The method of claim 12, Forming the substrate Forming a substrate in the form of a mat by using a glass fiber needle mat or an aerogel mat Method for producing a groove-type vacuum insulation material comprising a. The method of claim 12, Forming the substrate Forming the board-shaped substrate using a glass fiber board (glass fiber board) Method for producing a groove-type vacuum insulation material comprising a. The method of claim 10, Prior to inserting the substrate into the shell material, it is selected from LDPE (Linear Density PolyEthylene), LLDPE (Linear Low Density PolyEthylene), HDPE (High Density PolyEthylene), CPP (Chlorinated Polypropylene) film, or OPP (Oriented Polypropylene) film Manufacturing the envelope using at least one of which is Method of manufacturing a groove-type vacuum insulation material further comprising a. The method of claim 10, Sealing the opening Closing the opening of the envelope with heat sealing Method for producing a groove-type vacuum insulation material comprising a. Stacking a plurality of core materials spaced apart from each other on an upper surface of the substrate to be bonded to the upper surface of the substrate; Inserting the substrate having the plurality of core materials stacked therein into the inside of the envelope through an opening provided at one end of the envelope-shaped envelope; Extracting air in the shell material through the opening in the vacuum chamber to make a vacuum state; Sealing the opening in the vacuum state; And Taking out the envelope material to the outside in the vacuum chamber; Method for producing a groove-type vacuum insulation material comprising a. The method of claim 18, The laminating step Laminating the core material to adhere to the substrate using one selected from a needle, an inorganic binder, and an organic binder Method for producing a groove-type vacuum insulation material comprising a.

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