WO2015137700A1

WO2015137700A1 - Vacuum insulating material and refrigerator including same

Info

Publication number: WO2015137700A1
Application number: PCT/KR2015/002299
Authority: WO
Inventors: 갈승훈; 김형성; 박종성; 육세원
Original assignee: 삼성전자주식회사
Priority date: 2014-03-11
Filing date: 2015-03-10
Publication date: 2015-09-17

Abstract

Disclosed are: a vacuum insulating material having an improved structure so as to improve a heat-insulating property and durability; and a refrigerator including the same. The vacuum insulating material comprises: a core material; a first outer cover material disposed at the outer side of the core material; a blocking layer disposed between the core material and the first outer cover material; and a second outer cover material coupled with the first outer cover material such that an accommodating space for accommodating the core material and the blocking layer therein is formed, wherein the blocking layer is fused or adhered to the first outer cover material so as to be integrated with the first outer cover material.

Description

Vacuum Insulation Material and Refrigerator Including It

The present invention relates to a vacuum insulator and a refrigerator including the same, and more particularly, to a vacuum insulator having an improved structure to improve heat insulation and durability and a refrigerator including the same.

The energy consumed by mankind is limited, and global warming due to carbon dioxide generated by using it is the biggest problem that mankind has with energy crisis. As a result, energy regulation in each country is tightening day by day, and the energy rating for home appliances is a permanent task for manufacturers. The government's energy rating system, which requires maximum efficiency with less energy, is well suited to the needs of consumers who demand high content and low power consumption. In particular, many studies have been conducted on the refrigerator for the last several decades, and researches on improving efficiency of cooling cycles, compressors, and heat exchangers have already reached its limit. Therefore, research on heat loss has been dominant in recent years, and many attempts have been made to increase energy efficiency by enhancing the insulation performance of refrigerators.

Insulation materials, such as polyurethane, has a thermal conductivity of about 20 mK / mK, and when used, the outer wall of the refrigerator becomes thicker, which reduces the storage capacity of the refrigerator. Therefore, in order to solve this problem, it is necessary to use a vacuum insulator having excellent heat insulating performance.

However, the heat bridge phenomena (heat bridge, the phenomenon that heat flows through the edge of the vacuum insulation material) and durability of the vacuum insulation material is in conflict with each other, there is a limit to the efficient vacuum insulation material production.

One aspect of the present invention provides a vacuum insulating material and a refrigerator including the same having an improved structure to effectively prevent gas and moisture permeation.

Another aspect of the present invention provides a vacuum insulator having an improved structure and a refrigerator including the same to prevent thermal bridges and to improve durability.

Another aspect of the invention provides a vacuum insulator having an improved structure to reduce the volume and a refrigerator comprising the same.

Vacuum insulating material according to the spirit of the present invention is coupled to the core material (Core Material), the first shell material disposed outside the core material, the barrier layer disposed between the core material and the first shell material and the first shell material And a second envelope forming an accommodating space in which the core material and the blocking layer are accommodated, wherein the blocking layer is fused or adhered to the first envelope and is integral with the first envelope. do.

The first envelope and the second envelope may have different thermal conductivity.

The first envelope may have a lower thermal conductivity than the second envelope.

The first envelope may comprise an aluminum vapor deposition envelope, and the second envelope may comprise an aluminum foil envelope.

Vacuum insulating material according to the spirit of the present invention further comprises a block layer disposed between the core material and the second shell material, the block layer is fused or adhered to the second shell material and integral with the second shell material Characterized in forming.

The first envelope and the second envelope may include an aluminum deposition envelope.

The first envelope includes a first region formed along an edge of the first envelope and a second region formed inside the first region, and the blocking layer may be adhered to the second region.

The blocking layer may be further adhered to at least a portion of the first region.

The second region may include a bent portion bent at the edge of the core material.

The first envelope may have a lower thermal conductivity than the second envelope, and the first region may be bent such that the second envelope is located between the core and the first region.

The blocking layer may have the same width as the core material.

The blocking layer may have a width smaller than that of the core material.

The first envelope may include a fusion layer facing the accommodation space in the inner direction of the core material.

The second envelope may include a sealing layer facing the accommodation space in the inner direction of the core material.

The first envelope includes a fusion layer facing the receiving space in the inner direction of the core, the second envelope includes a sealing layer facing the accommodation space in the inner direction of the core, the fusion layer and The sealing layers may be adhered to each other by fusion or adhesion at least in part of the first region.

The fusion layer and the sealing layer may include at least one of linear low-density polyethylene (LLDPE) and low density polyethylene (LDPE).

The blocking layer may face the fusion layer and include a base layer adhered to the fusion layer, and the base layer may be adhered to the fusion layer by fusion or adhesion.

The blocking layer may further include at least one of at least one metal layer and an inorganic deposition layer stacked on the base layer toward the core material.

The blocking layer may include a metal layer facing the fusion layer and adhered to the fusion layer.

The first envelope may further include at least one barrier layer disposed on the fusion layer in an outer direction of the core material.

The at least one barrier layer includes a substrate layer and a deposition layer provided on the substrate layer to block gas and moisture flowing into the core material, and the deposition layer may include at least one of Al, SiO 2, and Al 2 O 3. Can be.

The at least one barrier layer further includes a transmission barrier layer provided between the fusion layer and the substrate layer, wherein the transmission barrier layer is at least one of ethylene vinyl alcohol (EVOH) and vacuum metalized ethylene vinyl alcohol (VM-EVOH). It may include.

Vacuum insulation material according to the spirit of the present invention is disposed between the core material (Core material), the first shell material disposed on the outer side of the core material, the core material and the first shell material, so as to be integral with the first shell material A second envelope having a barrier layer adhered to the first envelope and a thermal conductivity greater than that of the first envelope, and combined with the first envelope to form an accommodating space in which the core and the barrier layer are accommodated. The first envelope and the second envelope may be bonded to each other by fusion or adhesion to form an extension part extending in an outward direction of the accommodation space.

The extension part may be bent such that the first envelope is located outside the second envelope.

The first envelope may include a fusion layer to which the blocking layer is bonded and a barrier layer laminated to the outside of the fusion layer.

The second envelope includes a sealing layer surrounding the core material, and the fusion layer and the sealing layer may be bonded to each other to form the extension part.

The barrier layer may include a plurality of barrier layers, and the barrier layers may include a substrate layer and a deposition layer disposed to face the substrate layer to block gas and moisture flowing into the core material, and the deposition layer may include Al and SiO 2. And Al2O3.

The barrier layers may further include a transmission barrier layer provided between the fusion layer and the base layer, wherein the transmission barrier layer is formed of at least one of ethylene vinyl alcohol (EVOH) and vacuum metalized ethylene vinyl alcohol (VM-EVOH). It may include.

The plurality of barrier layers may further include a protective layer provided on the deposition layer to absorb external impact, and the protective layer may include at least one of polyethylene phthalate (PET) and nylon (Nylon).

The blocking layer includes a first layer adhered to the fusion layer by fusion or adhesion and a second layer laminated on the first layer in an inward direction of the core material, wherein the second layer includes an inorganic deposition layer and a plurality of layers. It may include at least one of the metal layer.

According to an aspect of the present invention, a refrigerator includes an outer wound forming an outer appearance, an inner wound formed inside the outer wound, and a vacuum insulating material positioned between the outer wound and the inner wound to form a storage compartment, and the vacuum insulating material includes a core material (Core). Material) is disposed between the first shell material, the core material and the first shell material disposed on the outer side of the core material to face the inner surface of the outer shell, and to the first shell material to be integral with the first shell material. A second bonding layer having a thermal conductivity greater than that of the first outer shell material and the first outer shell material and bonded to the outer surface of the inner layer to form an accommodating space in which the core material and the blocking layer are accommodated; Including a shell material, the second shell material may be bonded along the edge of the first shell material by fusion or adhesion.

The first envelope may be coupled to the inner surface of the trauma.

Vacuum insulating material according to the spirit of the present invention has a different thermal conductivity from the core material (Core material), the first shell material disposed on the outer side of the core material, the first shell material, and combined with the first shell material therein And a second envelope member forming an accommodation space in which the core member is accommodated, and an extension part provided to extend in an outer direction of the accommodation space, wherein the first envelope material and the second envelope material are fused or adhered at all of the extension parts. It can be adhered to each other by.

The extension part may connect a first point formed at an outermost position where the first envelope material and the second envelope material are bonded to each other in an outer direction of the accommodation space, and a second point where the extension part and the core material contact each other.

The first envelope and the second envelope each include a bonding layer facing the receiving space in the inner direction of the core material, wherein the bonding layers of the first envelope and the second envelope are adhered to each other by fusion or adhesion. Can be.

The bonding layer may include at least one of Linear Low-Density Polyethylene (LLDPE) and Low Density Polyethylene (LDPE).

The vacuum insulating material according to the spirit of the present invention may further include a blocking layer disposed between at least one of the first envelope material and the second envelope material and the core material.

The blocking layer may be bonded to at least one of the first envelope and the second envelope to form an integral part with at least one of the first envelope and the second envelope.

The blocking layer may have the same width as the core material or smaller than the core material.

The blocking layer may have a larger width than the core material.

The extension part connects a first point formed at an outermost position where the first envelope material and the second envelope material are bonded to each other in an outer direction of the accommodation space, and a second point where the extension part and the core material contact each other. At least one end of the blocking layer extending in an outer direction of the receiving space may be located between the first point and the second point.

Vacuum insulating material according to the spirit of the present invention may further include a barrier layer disposed between any one of the first shell material and the second shell material having a low thermal conductivity and the core material.

The durability of the vacuum insulator can be improved by adhering the first envelope and the second envelope by fusion or adhesion.

The thermal bridge phenomenon can be effectively prevented by using a hybrid shell material having a first shell material and a second shell material bonded to each other having different thermal conductivity.

By arranging the barrier layer between the core and the first envelope to be adhered to the first envelope, the degree of gas and moisture permeation can be reduced.

By using a thin, excellent heat insulating vacuum insulating material between the outer and inner wound of the refrigerator can realize a slim design of the refrigerator and at the same time increase the storage capacity of the refrigerator.

1 is a perspective view showing the appearance of a refrigerator according to one embodiment of the present invention;

2 is a cross-sectional view showing a refrigerator according to an embodiment of the present invention.

3 is an enlarged cross-sectional view of a portion of FIG. 2;

Figure 4 is a perspective view showing a vacuum insulating material according to an embodiment of the present invention

Figure 5 is a cross-sectional view showing a state before the first shell material and the second shell material of the vacuum insulating material is coupled according to an embodiment of the present invention

Figure 6 is a cross-sectional view showing a state before the extension portion of the vacuum insulation is bent according to an embodiment of the present invention

Figure 7 is an enlarged cross-sectional view showing a first shell of the vacuum insulating material according to an embodiment of the present invention

8 is an enlarged cross-sectional view of a portion Q of the vacuum insulator of FIG.

Figure 9 is an enlarged cross-sectional view showing a first shell of the vacuum insulating material according to another embodiment of the present invention

10 is an enlarged cross-sectional view illustrating a second envelope of a vacuum insulation material according to an embodiment of the present invention.

11 is an enlarged cross-sectional view of an extension part of a vacuum insulator according to an embodiment of the present invention;

12 is a cross-sectional view showing a state in which the extension portion of the vacuum insulation material is bent according to an embodiment of the present invention.

13 is a cross-sectional view showing a state before the extension of the vacuum insulation is bent according to another embodiment of the present invention

14 is a cross-sectional view showing a state in which the extension of the vacuum insulation member is bent according to another embodiment of the present invention;

15 is a cross-sectional view showing a state before the extension portion of the vacuum insulation is bent in accordance with another embodiment of the present invention

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. On the other hand, the terms "leading", "rear", "top", "bottom", "top" and bottom "and the like used in the following description are defined based on the drawings, and the shape and The location is not limited.

1 is a perspective view showing the appearance of a refrigerator according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a refrigerator according to an embodiment of the present invention. 3 is an enlarged cross-sectional view of a portion of FIG. 2, and FIG. 4 is a perspective view illustrating a vacuum insulation material according to an embodiment of the present invention.

As illustrated in FIGS. 1 to 4, the refrigerator 1 may include a main body 10 forming an exterior and a storage compartment 20 provided to open the front surface of the main body 10.

The main body 10 may include an inner wound 11 forming the storage compartment 20 and an outer wound 13 forming the exterior, and may include a cold air supply device for supplying cold air to the storage compartment 20.

The cold air supply device may include a compressor C, a condenser (not shown), an expansion valve (not shown), an evaporator 26, a blower fan 27, and the like, The foam insulation 15 may be foamed between the inner wound 11 and the outer wound 13 so as to prevent cold air from leaking out of the storage compartment 20.

The rear of the main body 10 may be provided with a compressor (C) for compressing the refrigerant and condensing the compressed refrigerant and a machine room (23) in which the condenser is installed.

The storage compartment 20 may be divided into left and right sides by the partition wall 17, and a refrigerating compartment 21 may be provided on the right side of the main body 10, and a freezing compartment 22 may be provided on the left side of the main body 10.

The refrigerator 1 may further include a door 30 that opens and closes the storage compartment 20.

The refrigerating compartment 21 and the freezing compartment 22 are opened and closed by the refrigerating compartment door 31 and the freezing compartment door 33, which are rotatably coupled to the main body 10, respectively, of the refrigerating compartment door 31 and the freezing compartment door 33. A plurality of door guards 35 may be provided on the back to accommodate food and the like.

A plurality of shelves 24 may be provided in the storage compartment 20 to divide the storage compartment 20 into a plurality, and an article such as food or the like is loaded on the shelf 24.

In addition, the plurality of storage boxes 25 may be provided in the storage room 20 to be drawn in and drawn out by a sliding method.

The refrigerator 1 may further include a hinge module 40 including an upper hinge 41 and a lower hinge 43 to rotatably couple the door 30 to the main body 10.

A foaming space S is provided between the inner wound 11 forming the storage compartment 20 and the outer wound 13 coupled to the outside of the inner wound 11 to form an exterior, and the foam insulation S in the foamed space S ( 15) is filled.

In order to reinforce the thermal insulation of the foam insulation 15, a vacuum insulation panel (VIP) 100 may be filled together with the foam insulation 15.

The vacuum insulation material 100 is composed of a core material (Core material) 110 and the outer shell material (130, 140), the outer shell material (130, 140) to block the fine gas and moisture penetrating into the interior of the vacuum state of the vacuum insulation material (100) It is a very important factor to maintain life.

The

envelope

130, 140 of the vacuum insulation 100 may include a first envelope 130 and a second envelope 140.

The first envelope 130 may be disposed outside the core member 110. The second envelope 140 may be combined with the first envelope 130 to form an accommodation space 160 in which the core 110 is accommodated therein.

The first envelope 130 and the second envelope 140 may be adhered to each other by fusion or adhesion. When the first envelope 130 and the second envelope 140 are bonded to each other by fusion or adhesion, the gas toward the core 110 is closed because a gap or a passage through which at least one of the gas and the moisture can move is closed. And penetration of at least one of moisture may become difficult. Therefore, durability of the vacuum insulation material 100 may be improved. In addition, by bonding the first envelope 130 and the second envelope 140 to each other by fusion or adhesion, it is possible to improve the manufacturability of the vacuum insulating material 100. That is, when the

shell material

130, 140 of the vacuum insulation material 100 is broken, it is generally difficult to maintain the vacuum state of the accommodating space 160 in which the core material 110 is accommodated. However, when the first shell member 130 and the second shell member 140 are bonded to each other by fusion or adhesion, even if the

shell member

130 and 140 of the vacuum insulation material 100 are damaged in the manufacturing process, the core member 110 may be damaged. The vacuum state of the accommodation space 160 accommodated can be maintained.

The first envelope 130 and the second envelope 140 may have the same or different thermal conductivity.

When the first shell material 130 and the second shell material 140 have different thermal conductivity, the first shell material 130 having a small thermal conductivity is the core material so as to face the inner surface 13a of the trauma 13. It may be disposed outside the 110. The second envelope 140 having a large thermal conductivity may be disposed on the outside of the core 110 to face the outer surface 11a of the inner wound 11, and may be combined with the first envelope 130 to form a core material therein. An accommodation space 160 in which the 110 is accommodated may be formed.

The first envelope 130 may be adhered to the inner surface 13a of the outer shell 13. Since the first envelope 130 having a small thermal conductivity is adhered to the inner surface 13a of the outer shell 13, not only the heat insulating performance can be improved, but also external moisture and gas flow into the inside of the vacuum insulating material 100. Can be prevented. In addition, since the outer surface of the first envelope 130 facing the inner surface 13a of the outer wound 13 is flat, it is easy to adhere to the inner surface 13a of the outer wound 13. An extension portion 150 (refer to FIG. 6 and FIG. 12) formed by coupling the first envelope 130 and the second envelope 140 to each other includes a first envelope 130 having a low thermal conductivity. Since it is bent toward the inner wound 11 to be located outside the 140, the outer surface of the second envelope 140 may not be flat.

However, the first envelope 130 is not limited to being bonded to the inner surface 13a of the trauma 13, and the second envelope 140 is formed on the inner surface of the trauma 13 instead of the first envelope 130. It is also possible to adhere to 13a).

5 is a cross-sectional view showing a state before the first jacket and the second jacket of the vacuum insulation in accordance with an embodiment of the present invention, Figure 6 is a bent extension of the vacuum insulation in accordance with an embodiment of the present invention It is sectional drawing which shows state before becoming. FIG. 7 is an enlarged cross-sectional view of a first jacket of the vacuum insulator according to an embodiment of the present invention, and FIG. 8 is an enlarged cross-sectional view of a Q portion of the vacuum insulator of FIG. 6. 9 is an enlarged cross-sectional view showing a first envelope of a vacuum insulation material according to another embodiment of the present invention, Figure 10 is an enlarged cross-sectional view showing a second envelope of the vacuum insulation material according to an embodiment of the present invention. to be. 11 is an enlarged cross-sectional view of the extension part of the vacuum insulating material according to an embodiment of the present invention. 5 to 12, the first envelope 130 and the second envelope 140 will be described based on the case where they have different thermal conductivity. In addition, the first envelope 130 is a shell material that is relatively easy to permeate gas and moisture, and the second shell material 140 will be described as an example of a shell material that is relatively difficult to permeate gas and water. In addition, the blocking layer 170 includes a block layer. That is, the block layer refers to the blocking layer 170 disposed between the core material 110 and the second envelope 140.

The first envelope 130 may include a metal deposition envelope, and the second envelope 140 may include an aluminum foil envelope. Hereinafter, for convenience of description, the first envelope 130 is referred to as a metal deposition envelope, and the second envelope 140 refers to an aluminum foil envelope. The metal deposited envelope includes an aluminum deposited envelope. Aluminum foil skin has low moisture and gas permeability, but heat bridge phenomenon (heat flow through the edge of the vacuum insulation) may occur, resulting in poor thermal insulation performance. On the other hand, the metal-deposited outer shell material is thinner than the aluminum foil outer shell material to prevent thermal bridges, but may have a high durability of water and gas permeability. Hereinafter, the vacuum insulator 100 according to the present invention will be described to improve the durability and at the same time to prevent the thermal bridge phenomenon by supplementing the disadvantages of the metal deposition shell material and the aluminum foil shell material as described above.

Hereinafter, "upper" means the surface facing the outer side of the vacuum insulation, and "lower" means the surface facing the inner side of the vacuum insulation, that is, toward the core of the vacuum insulation. Reference numerals not shown refer to FIGS. 1 to 4.

5 to 11, the vacuum insulation material 100 may include a core material 110, a first envelope 130, and a second envelope 140.

The core material 110 may include glass fiber having excellent thermal insulation performance. If possible, a high-insulation effect can be obtained by forming a laminated structure of panels made of thin glass fibers. Specifically, the smaller the pore size of the glass fibers (pore size) can be minimized because the effect of radiation (radiation) of the insulation performance can be expected a high insulation effect.

The core material 110 may be formed of only glass fiber.

The first envelope 130 is disposed on one surface of the core 110, the second envelope 140 is coupled to the first envelope 130 and the accommodation space 160 is accommodated inside the core 110 It may be disposed on the other side of the core material 110 to form a).

Types of the first envelope 130 and the second envelope 140 may be different from each other.

In addition, the first envelope 130 and the second envelope 140 may be formed of different materials.

In addition, the first envelope 130 and the second envelope 140 may have a different thickness.

In addition, the first envelope 130 and the second envelope 140 may have a different laminated structure. Specifically, the first envelope 130 and the second envelope 140 may have different layers. Even if the layers constituting the first envelope 130 and the second envelope 140 are the same, the arrangement of the layers may be different.

In addition, the first envelope 130 and the second envelope 140 may have a different stacking number. Even if the diarrhea, the first envelope 130 and the second envelope 140 are the same type, the number of layers of the first envelope 130 and the number of layers of the second envelope 140 May be different from each other.

The first envelope 130 and the second envelope 140 may be coupled to each other to form an extension part 150 extending in an outward direction of the accommodation space 160. The extension part 150 may be formed to extend in an outward direction from both side surfaces of the core material 110. The first envelope 130 and the second envelope 140 may be bonded to each other in the extension part 150 to maintain the receiving space 160 in which the core member 110 is accommodated in a vacuum state.

The first envelope 130 and the second envelope 140 may be adhered to each other by fusion or adhesion at least in part of the extension part 150. Preferably, the first envelope 130 and the second envelope 140 may be adhered to each other by fusion or adhesion at all of the extensions 150.

The first envelope 130 may include a first region 131 and a second region 132.

The first region 131 may be formed along the edge of the first envelope 130. The second region 132 may be formed inside the first region 131.

The second region 132 may have a rectangular shape, but is not limited thereto.

The second region 132 may include a bent portion 132a that is bent at the edge of the core material 110.

The second envelope 140 may include an edge portion 145 and a central portion 146.

The edge portion 145 may be formed along the edge of the second envelope 140. The central portion 146 may be formed inside the edge portion 145.

The edge portion 145 may correspond to the first region 131. The central portion 146 may correspond to the second region 132. However, the correspondence between the edge portion 145 and the central portion 146 is not limited thereto.

The central portion 146 may have a rectangular shape, but is not limited thereto.

The central portion 146 may include a bent portion 132b that is bent at the edge of the core material 110. The bent portion 132b of the second envelope 140 may correspond to the bent portion 132a of the first envelope 130, but is not limited thereto.

The second envelope 140 may be adhered to the first region 131 to form a sealed accommodation space 160. Specifically, the edge portion 145 of the second envelope 140 may be bonded to the first region 131 to form a receiving space 160 sealed in all directions. The edge portion 145 of the second envelope 140 may be adhered to the first region 131 by fusion or adhesion.

Fusion may include thermal fusion that applies heat.

The first region 131 of the first shell member 130 and the edge portion 145 of the second shell member 140 are bonded to form an extension portion 150 extending outwardly of the accommodation space 160. Can be.

The first region 131 is boundary 139 with the second region 132 at a position corresponding to 1 cm or more and 2 cm or less in the inward direction of the first region 131 in the outer boundary 138 of the first envelope 130. ) Can be achieved. That is, the extension part 150 may have a width of 1 cm or more and 2 cm or less in the inward direction of the accommodation space 160. However, the width of the extension part 150 is not limited to the above example.

The extension part 150 may include a section connecting the first point A and the second point B. FIG. The first point A may be formed at a position where the edge of the first envelope 130 and the edge of the second envelope 140 corresponding to the edge of the first envelope 130 are bonded. The second point B may be located inward of the accommodation space 160 at the first point A so as to face the core 110. Specifically, the first point A is the outer boundary 138a of the second envelope 140 corresponding to the outer boundary 138 of the first region 131 and the outer boundary 138 of the first region 131. ) May be formed at the position to be bonded. That is, the first point A may be formed at a position where the outermost end of the first envelope 130 and the outermost end of the second envelope 140 meet each other in the outer direction of the accommodation space 160. .

The second point B is a position where the boundary 139 of the first region 131 and the second region 132 and the edge portion 145 of the second envelope 140 corresponding to the boundary 139 are bonded to each other. Can be formed on. That is, the second point B may be formed at a position where the boundary 139 of the first envelope 130 and the boundary 139a of the second envelope 140 corresponding to the boundary 139 are bonded to each other. . The boundary 139a of the second envelope 140 may be formed between the edge portion 145 and the central portion 146 so as to partition the edge portion 145 and the central portion 146. The second point B may face the core material 110 accommodated in the accommodation space 160. In other words, the first point A may be formed at the outermost position where the first envelope 130 and the second envelope 140 are bonded to each other in the outer direction of the accommodation space 160, and the second point ( B) may be formed at a position where the extension portion 150 and the core member 110 contact each other. By fusion or adhesion, the extension portion 150 connecting the first point A and the second point B is fused or adhered to each other. By bonding, the water and gas permeation amount penetrating into the accommodation space 160 may be reduced.

In the process of forming the extension part 150 of the vacuum insulation material 100, wrinkles may occur in at least one of the first envelope material 130 and the second envelope material 140. Accordingly, the first skin member 130 may be formed with an adhesive portion to be bonded to the fusion layer 133 of the adjacent first shell member 130. In addition, an adhesive part may be formed on the second envelope 140 to bond the sealing layers 141 of the adjacent second envelope 140 to each other.

An adhesive portion that may be formed on at least one of the first envelope material 130 and the second envelope material 140 penetrates into the receiving space 160 similarly to the extension portion 150 formed by fusion or adhesion. Moisture and gas permeation amount can be reduced.

The vacuum insulation material 100 may further include a blocking layer 170.

The blocking layer 170 may be disposed between at least one of the first envelope 130 and the second envelope 140 and the core 110 to prevent moisture and gas from penetrating into the accommodation space 160. have.

Preferably, the blocking layer 170 may be installed on the inner surface of the outer cover material (130, 140) is relatively easy to gas and moisture permeation. That is, the blocking layer 170 may be disposed between the core member 110 and the first envelope 130 to prevent gas and moisture from penetrating through the first envelope 130 and into the accommodation space 160. Can be.

The blocking layer 170 is accommodated in the accommodating space 160 together with the core material 110, and adhered to at least one of the first envelope material 130 and the second envelope material 140 to be bonded to the first envelope material 130. And at least one of the second envelope 140.

Preferably, the blocking layer 170 may be bonded to the first envelope 130 to form an integral part with the first envelope 130.

The blocking layer 170 may be attached to the second region 132 of the first envelope 130.

Alternatively, the blocking layer 170 may be adhered to the inside of the second region 132 of the first envelope 130. As an example, the blocking layer 170 may be adhered to the bent portion 132a of the first envelope 130.

Alternatively, the blocking layer 170 may be attached to a portion of the second region 132 and the first region 131. As an example, the blocking layer 170 may be bonded over a portion of the second region 132 and the first region 131 to include the boundary 139.

The blocking layer 170 may have the same width as the core material 110 or smaller than the core material 110 when the types of the first envelope material 130 and the second envelope material 140 are different. For example, the blocking layer 170 may be the same as the core material 110 when the first shell material 130 is made of a metal deposition shell material, and the second shell material 140 is made of an aluminum foil shell material. It may have a smaller width than the core material (110).

The blocking layer 170 may have the same width as the core material 110. Specifically, the core material 110 may include an upper surface 111 facing the blocking layer 170, and the blocking layer 170 may have the same area as the upper surface 111 of the core material 110.

The blocking layer 170 may have a smaller width than the core material 110. Specifically, the blocking layer 170 may have an area smaller than the top surface 111 of the core material 110.

This is because a heat bridge may occur when the blocking layer 170 has a larger cross-sectional area than the core material 110 due to the characteristics of the blocking layer 170.

The blocking layer 170 may be omitted or have a width larger than that of the core material 110 when the types of the first envelope material 130 and the second envelope material 140 are the same.

When the first envelope 130 and the second envelope 140 is made of an aluminum foil envelope regardless of the number of laminated layers, the blocking layer 170 may be omitted. In other words, if both of the first envelope 130 and the second envelope 140 are made of aluminum foil envelope, the first envelope 130 and the second envelope 140 may be the same number of layers. The barrier layer 170 may be omitted, regardless of whether the structure has a different number of layers or a different number of stacked layers. This is because gas and moisture permeation are relatively difficult in the case of an aluminum foil envelope.

The blocking layer 170 may have a larger width than the core material 110. Specifically, in the case where the first envelope 130 and the second envelope 140 are formed of a metal deposition envelope regardless of whether they have the same stacking number or different stacking numbers, the blocking layer 170 ) May have a larger area than the upper surface 111 of the core material 110. That is, when the first envelope 130 and the second envelope 140 are relatively easy to permeate gas and moisture, but are made of a metal deposition envelope having low thermal conductivity, the blocking layer 170 is a core material 110 It can have a width greater than). In this case, at least one end of the blocking layer 170 facing outward of the accommodation space 160 may be located in the extension part 150. Specifically, at least one end of the blocking layer 170 facing outwardly of the accommodation space 160 may be located between the first point A and the second point B. FIG.

In another aspect, the blocking layer 170 may have a sufficient width to cover not only the upper surface 111 of the core material 110 but also at least a portion of the side surface of the core material 110. As an example, when the first envelope 130 is composed of a metal deposition envelope, and the second envelope 140 is composed of an aluminum foil envelope, the barrier layer 170 is relatively gas and moisture permeable. It may be disposed between the easy first envelope 130 and the core 110. The blocking layer 170 may be fused or adhered to the first envelope 130. In addition, the blocking layer 170 may be bent together with the first envelope 130 to extend to the extension 150. Specifically, at least a portion of the blocking layer 170 facing outward of the accommodation space 160 may be located between the first point A and the second point B. FIG. In this case, the blocking layer 170 may more effectively block the gas and moisture penetrating toward the upper surface 111 of the core material 110 as well as the gas and moisture penetrating toward the side to the edge of the core material 110. The thermal insulation performance of the vacuum insulation material 100 can be improved.

The blocking layer 170 may be adhered to at least one of the first envelope 130 and the second envelope 140 by fusion or adhesion.

Preferably, the blocking layer 170 may be adhered to the first envelope 130 by fusion or adhesion.

Fusion may include thermal fusion that applies heat.

The blocking layer 170 may be inserted into the accommodation space 160 together with the core 110 to face the first envelope 130. The blocking layer 170 inserted into the accommodation space 160 may be fused or adhered to the first envelope 130 by a heat treatment applied to the outside of the vacuum insulation material 100.

When the barrier layer 170 is adhered to the inner surface or the outer surface of the first envelope 130 using a separate adhesive, gas generated from the adhesive penetrates into the accommodation space 160 to allow the interior of the accommodation space 160. The vacuum may be broken or costly to produce realistically.

The blocking layer 170 may include at least one of a metal foil, an inorganic deposition film, and a polymer resin.

The blocking layer 170 may have the same width as the second region 132 or smaller than the second region 132.

The blocking layer 170 may include a base layer (first layer) (not shown) adhered to the second region 132 of the first envelope 130. The base layer may be attached to the second region 132 by fusion or adhesion.

The blocking layer 170 may further include at least one (second layer) of at least one metal layer (not shown) and an inorganic deposition layer (not shown). The inorganic deposition layer means a layer on which an inorganic material is deposited.

Hereinafter, the base layer may have the same meaning as the first layer, and the second layer may have the same meaning as at least one of the at least one metal layer and the inorganic deposition layer.

At least one of the at least one metal layer and the inorganic deposition layer may be stacked on the base layer toward the core material 110. That is, at least one of the at least one metal layer and the inorganic deposition layer may be disposed under the base layer.

In detail, the blocking layer 170 may have a structure in which a base layer adhered to the second region 132 and at least one metal layer positioned below the base layer toward the core material 110 are stacked.

Alternatively, the blocking layer 170 may have a structure in which the base layer adhered to the second region 132 and the inorganic deposition layer positioned below the base layer toward the core material 110 are stacked.

Alternatively, the blocking layer 170 may have a structure in which at least one metal layer and an inorganic deposition layer disposed below the base layer toward the core layer 110 and the core material 110 adhered to the second region 132 are stacked. The stacking order of the at least one metal layer and the inorganic deposition layer may be variously modified.

The blocking layer 170 may include only at least one metal layer. When the blocking layer 170 includes only at least one metal layer, the at least one metal layer may face the second region 132 and may be attached to the second region 132.

The first envelope 130 may include a fusion layer 133 and at least one barrier layer 180.

The welding layer 133 may face the accommodation space 160 in the inner direction of the core material 110. The adhesion layer 133 may include at least one of linear low-density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), and casting polypropylene (CPP) having excellent sealing properties. Preferably, the fusion layer 133 may include at least one of linear low-density polyethylene (LLDPE) and low density polyethylene (LDPE). This is because the barrier layer 170 can be easily attached by heat that can be applied in the process of adhering the blocking layer 170 to the second region 132. Easily adhered means that the components of other shells adhere at optimal temperatures that do not interfere.

The fusion layer 133 may be formed in a film form.

The at least one barrier layer 180 may be stacked on the fusion layer 133 and may include a base layer 134 and a deposition layer 135.

The base layer 134 may include at least one of polyethylene (PET), vacuum metalized polyethylene (PMP), ethylene vinyl alcohol (EVOH), and nylon (Nylon).

The deposition layer 135 may be provided on the base layer 134 to block gas and moisture introduced into the core material 110.

The deposition layer 135 may be formed by chemical vapor deposition, including physical vapor deposition or chemical vapor deposition (CVD), including evaporating, sputtering, and aerosol deposition. .

The deposition layer 135 may include at least one of Al, SiO 2, and Al 2 O 3. That is, at least one of Al, SiO 2, and Al 2 O 3 may be deposited on the deposition layer 135.

The deposition layer 135 may include various kinds of aluminum oxides, and is not limited to Al 2 O 3.

The at least one barrier layer 180 may include a first barrier layer 180a, a second barrier layer 180b, and a third barrier layer 180c. In this case, the first barrier layer 180a positioned on the fusion layer 133 to face the fusion layer 133 may include a first base layer 134a and a first base layer 134a surrounding the fusion layer 133. It may include a first deposition layer 135a disposed above.

The second barrier layer 180b positioned above the first barrier layer 180a so as to face the first barrier layer 180a includes the second base layer 134b and the first substrate located above the first deposition layer 135a. The second deposition layer 135b may be disposed between the deposition layer 135a and the second substrate layer 134b. That is, the second barrier layer 180b may be stacked on the first barrier layer 180a such that the first deposition layer 135a and the second deposition layer 135b face each other.

The third barrier layer 180c positioned on the second barrier layer 180b may be formed on the third deposition layer 135c and the third deposition layer 135c provided on the second substrate layer 134b. Three substrate layers 134c may be included.

The reason why the second barrier layer 180b is stacked on the first barrier layer 180a so that the first deposition layer 135a and the second deposition layer 135b face each other is due to cracking on the first deposition layer 135a. This is to prevent the occurrence of). Specifically, when the first deposition layer 135a is disposed on the fusion layer 133, cracks are likely to occur in the first deposition layer 135a due to the properties of the fusion layer 133. When cracks occur in the first deposition layer 135a, gas and moisture may flow into the vacuum insulation material 100 through the cracks, so that the thermal insulation performance of the vacuum insulation material 100 may be reduced. Therefore, the second barrier layer 180b is preferably stacked on the first barrier layer 180a such that the first deposition layer 135a and the second deposition layer 135b face each other.

The at least one barrier layer 180 may have a stacked structure such that the base layer 134 and the deposition layer 135 positioned on the base layer 134 are disposed to face each other.

The at least one barrier layer 180 is not limited to the first barrier layer 180a, the second barrier layer 180b, and the third barrier layer 180c.

The at least one barrier layer 180 may further include a transmission barrier layer 136.

The anti-transmission layer 136 may be provided between the fusion layer 133 and the base layer 134.

The anti-transmission layer 136 may include at least one of ethylene vinyl alcohol (EVOH) and vacuum metalized ethylene vinyl alcohol (VM-EVOH).

At least one barrier layer 180 may further include a protective layer 137.

The protective layer 137 may be disposed at the outermost portion of the first envelope 130 in the outer direction of the core member 110.

The protective layer 137 absorbs and disperses an external shock to protect the core 110 or the inside of the vacuum insulator 100 from the external shock. Therefore, the protective layer 137 is preferably formed of a material having excellent impact resistance.

The protective layer 137 may include at least one of polyethylene phthalate (PET), oriented polypropylene (OPP), nylon, and oriented nylon.

The blocking layer 170 may face the fusion layer 133 of the first envelope 130 and may be bonded to the fusion layer 133. In detail, the blocking layer 170 may be attached to the fusion layer 133 corresponding to the second region 132 of the first envelope 130.

The base layer of the blocking layer 170 may be bonded to the fusion layer 133 of the first envelope 130 by fusion or adhesion.

The second envelope 140 may surround the lower portion of the core member 110.

The second envelope 140 may include a sealing layer 141, an inner layer 142, a prevention layer 143, and a cover layer 144.

The sealing layer 141 is bonded to the surface of the core 110 to surround the core 110 and the blocking layer 170 together with the fusion layer 133 of the first envelope 130. The sealing layer 141 may include at least one of Linear Low-Density Polyethylene (LLDPE), Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), and CPP (Casting Polypropylene).

The sealing layer 141 may be formed in a film form.

The inner layer 142 may be located above the sealing layer 141. The inner layer 142 may include at least one of polyethylene (PET), vacuum metalized polyethylene (PMP), ethylene vinyl alcohol (EVOH), and nylon (Nylon).

The prevention layer 143 may be provided between the sealing layer 141 and the inner layer 142, and may include aluminum (Al).

The cover layer 144 absorbs and distributes an external shock to protect the core 110 and the inside of the vacuum insulating material 100 from the external shock. Therefore, the cover layer 144 is preferably formed of a material having excellent impact resistance.

The cover layer 144 may include at least one of polyethylene phthalate (PET), oriented polypropylene (OPP), nylon, and oriented nylon.

The fusion layer 133 corresponding to the first region 131 of the first envelope 130 is combined with the sealing layer 141 corresponding to the edge portion 145 of the second envelope 140 to extend the portion ( 150).

Table 1

EXAMPLE 1 Composition of outer skin material Bonded extension Effective thermal conductivity Center thermal conductivity (initial) Center thermal conductivity (after 30 days at room temperature) Example 1 Deposition layer (3 layers) + barrier layer O3.72.042.08 Example 2 Deposition layer ( 3 layers) X3.82.012.30 Table 1 shows the thermal conductivity of the vacuum insulator depending on whether the extension is adhered or not.

As shown in Table 1, the vacuum insulation material 100 may have different thermal conductivity depending on the presence or absence of the blocking layer 170 and whether the extension portion 150 is bonded.

The effective thermal conductivity is a value that considers both the thermal conductivity of the central portion of the vacuum insulator 100 and the thermal conductivity of the edge portion, and has a unit of "mW / mK". The smaller the effective thermal conductivity, the better the thermal insulation performance of the vacuum insulator.

The central thermal conductivity is a thermal conductivity value measured at the center of the vacuum insulator 100 and has a unit of "mW / mK". Comparing the initial value of the central thermal conductivity and the value after 30 days, the reliability of the vacuum insulator 100 can be estimated. The smaller the difference between the initial value of the central thermal conductivity and the value after 30 days has elapsed, the better the reliability of the vacuum insulation material 100 and the better the thermal insulation performance.

The vacuum insulator 100 of Example 1 has a first envelope 130 including an aluminum (Al) deposition layer 135 and a blocking layer 170 composed of three layers, the vacuum insulator of Example 2 ( The blocking layer 170 may be omitted, and the first envelope 130 may include an aluminum (Al) deposition layer 135 including three layers.

The vacuum insulator 100 of Example 1 has an extended portion 150 bonded thereto, and the vacuum insulator 100 of Example 2 has an extension portion 150 that is not bonded.

As shown in Table 1, the vacuum insulating material 100 of Example 1 has a smaller effective thermal conductivity than the vacuum insulating material 100 of Example 2. Differences in the center thermal conductivity with time. Since the vacuum insulation material 100 of Example 1 is smaller than the vacuum insulation material 100 of Example 2, the extension part 150 is bonded, and the blocking layer 170 is included. It can be seen that the thermal insulation performance and reliability of the vacuum insulation material 100 is improved.

The vacuum insulation material 100 may further include an adsorbent 120.

The adsorbent 120 may be provided inside the core member 110 and may adsorb at least one of gas and moisture introduced into the core member 110 to maintain the vacuum state of the core member 110. The adsorbent 120 may be in powder form and may be configured to have a predetermined block or cuboid shape. In addition, the adsorbent 120 may be coated on the inner surface of the at least one of the first envelope 130 and the second envelope 140 or the surface of the core 110, or may be inserted into the core 110.

The adsorbent 120 may include CaO, BaO, MgO, and the like.

The adsorbent 120 may further include a catalyst.

In the manufacturing method of the vacuum insulation material 100, the envelope is formed by combining the first envelope 130 and the second envelope 140 so that one side of the accommodation space 160 is opened, and accommodates the core 110. Inserted into the space 160, it may include combining the one side of the first envelope 130 and the second envelope 140 to form a sealed receiving space 160. Specifically, the manufacturing process of the vacuum insulation material 100 is the edge portion 145 of the first region 131 and the second envelope 140 of the first envelope 130 so that one side of the receiving space 160 is open. The outermost end of the) is combined, the core material 110 is inserted into the receiving space 160, the edge of the first region 131 and the second shell material 140 of the first shell material (130) It may include combining the open one side of the 145 to form a sealed, that is, the receiving space 160 in a vacuum state. The blocking layer 170 may be formed in the accommodation space 160 to face at least one of the first envelope 130 and the second envelope 140 in the process of inserting the core 110 into the accommodation space 160. Can be inserted. The first region 131 of the first envelope 130 and the edge portion 145 of the second envelope 140 may be combined to form an extension portion 150 facing the outside of the accommodation space 160. .

The manufacturing method of the vacuum insulation material 100 may further include applying heat from the outside of the vacuum insulation material (100). By applying heat to the vacuum insulator 100, the blocking layer 170 is fused or adhered to the fusion layer 133 of the first envelope 130, and the first envelope 130 forming the extension 150. Infiltration of the fusion layer 133 and the sealing layer 141 of the second envelope 140 to fusion or adhesion so that moisture and gas penetrate into the accommodation space 160 through the first envelope 130. It can prevent more effectively.

Instead of applying heat to the vacuum insulating material 100 may be pressurized. As an example, the vacuum insulation material 100 may be pressurized under atmospheric pressure.

12 is a cross-sectional view showing a state in which the extension of the vacuum insulation member is bent according to an embodiment of the present invention. Reference numerals not shown refer to FIGS. 1 through 11.

As shown in FIG. 12, the extension part 150 of the vacuum insulation material 100 may be bent.

The extension part 150 may be bent such that the second envelope 140 is located between the core member 110 and the first envelope 130. That is, the extension part 150 may be bent such that the first envelope 130 having a low thermal conductivity is located outside the second envelope 140 having a high thermal conductivity. As described above, the vacuum insulation material 100 may be disposed between the inner wound 11 and the outer wound 13 so that the first envelope 130 is adhered to the inner surface of the outer wound 13, the second having high thermal conductivity. By bending the extension part 150 so that the outer shell material 140 is separated from the outer wound 13, the thermal insulation performance of the vacuum insulation material 100 may be improved.

13 is a cross-sectional view showing a state before the extension of the vacuum insulation is bent in accordance with another embodiment of the present invention, Figure 14 is a cross-sectional view showing a state in which the extension of the vacuum insulation is bent in accordance with another embodiment of the present invention. . Hereinafter, reference numerals not shown refer to FIGS. 1 to 12. In addition, description overlapping with FIGS. 1 to 12 may be omitted. 13 to 15 will be described based on the case where the first envelope 130 and the second envelope 140 have the same thermal conductivity.

The vacuum insulation material 100 may include a core material 110 having an upper surface 111a facing the first envelope material 130.

The vacuum insulator 100 may further include a first envelope 130 and a second envelope 140 surrounding the core 110.

The first envelope 130 may include at least one of a metal deposition envelope and an aluminum foil envelope.

The second envelope 140 may include at least one of a metal deposition envelope and an aluminum foil envelope.

The first envelope 130 and the second envelope 140 may be coupled to each other to form an extension part 150 extending in the outward direction of the accommodation space 160. The extension part 150 may be formed to extend toward both sides of the accommodating space 160 from both side surfaces of the core material 110. The first envelope 130 and the second envelope 140 may be bonded to each other in the extension part 150 to maintain the receiving space 160 in which the core member 110 is accommodated in a vacuum state.

The extension part 150 may include a section connecting the first point A and the second point B. FIG. The first point A may be formed at a position where the edge of the first envelope 130 and the edge of the second envelope 140 corresponding to the edge of the first envelope 130 are bonded. The second point B may be located inward of the accommodation space 160 at the first point A so as to face the core 110. In other words, the first point A may be formed at the outermost position where the first envelope 130 and the second envelope 140 are bonded to each other in the outer direction of the accommodation space 160, and the second point ( B) may be formed at the position where the extension 150 and the core member 110 contact.

By adhering the extension part 150 connecting the first point A and the second point B by fusion or adhesion, the water and gas permeation amount penetrating into the accommodation space 160 may be reduced.

The first envelope 130 and the second envelope 140 may each include a bonding layer facing the receiving space 160 in the inner direction of the core member 110. The bonding layer may be used to mean at least one of the fusion layer 133 and the sealing layer 141.

The bonding layers of the first envelope 130 and the second envelope 140 may be adhered to each other by fusion or adhesion.

The bonding layer may include at least one of linear low-density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), and casting polypropylene (CPP) having excellent sealing properties. Preferably, the bonding layer may include at least one of Linear Low-Density Polyethylene (LLDPE) and Low Density Polyethylene (LDPE).

The bonding layer of the first envelope 130 and the bonding layer of the second envelope 140 may be bonded to each other under at least one of heating and pressing. Heating and pressurization conditions may vary depending on the physical and chemical properties of the bonding layer. For example, the bonding layer of the first envelope 130 and the bonding layer of the second envelope 140 may be adhered to each other by fusion or adhesion under atmospheric pressure.

Any one of the first envelope 130 and the second envelope 140 may be bonded along the edge of the other of the first envelope 130 and the second envelope 140 by fusion or adhesion. .

When both the first envelope 130 and the second envelope 140 are metal-deposited envelopes, moisture or gas permeability is achieved by adhering the first envelope 130 and the second envelope 140 by fusion or adhesion. Can be reduced. The reason for the decrease in moisture or gas permeability is the same as that in which the first envelope 130 and the second envelope 140 are both aluminum foil envelopes.

However, when both of the first envelope 130 and the second envelope 140 are metal deposition envelopes, the barrier layer 170 may be disposed to further reduce moisture or gas permeability. A detailed description regarding the arrangement of the blocking layer 170 will be described later.

As shown in FIG. 14, the extension part 150 of the vacuum insulation material 100 may be bent.

A crack may be formed in at least one of the first envelope 130 and the second envelope 140 in the process of bending the extension part 150 of the vacuum insulator 100. The cracks may penetrate gas into the interior of the vacuum insulation material 100 through the cracks, and thus may have a great influence on the thermal insulation performance or durability of the vacuum insulation material 100. The thermal insulation performance or durability deterioration of the vacuum insulation material 100 due to such crack formation can be prevented by adhering the first envelope material 130 and the second envelope material 140 to each other, preferably by fusion bonding. That is, the gas or moisture introduced into the cracks must pass through portions where the first envelope 130 and the second envelope 140 are bonded or fused to each other, and thus it is difficult to reach the core 110.

At least one of the first shell member 130 and the second shell member 140 may be formed in the process of forming the extension portion 150 of the vacuum insulation material 100 or bending the extension portion 150 of the vacuum insulation material 100. Wrinkles may occur. Accordingly, the first envelope 130 may be formed by bonding the adhesive layer 133 of the adjacent first envelope 130 to each other, preferably an adhesion portion (fusion region). In addition, the second envelope 140 may be formed by bonding the sealing layer 141 of the adjacent second envelope 140 with each other, preferably an fusion site (fusion site). The fusion layers 133 of the first envelope 130 are adhered to each other, preferably, the bonding portion (fusion zone) to be fused and the sealing layers 141 of the second envelope 140 are bonded to each other, preferably fusion. The adhesive site (fusion site) that is to be used can also prevent the thermal insulation performance to lower the durability of the vacuum insulation material 100 due to crack formation.

15 is a cross-sectional view showing a state before the extension portion of the vacuum insulation is bent according to another embodiment of the present invention. Hereinafter, reference numerals not shown refer to FIGS. 1 to 14. In addition, description overlapping with FIG. 1 to FIG. 14 may be omitted.

As shown in FIG. 15, the vacuum insulator 100 prevents water and gas from penetrating into at least one of the first shell member 130 and the second shell member 140 and penetrating into the accommodation space 160. The barrier layer 170 may be further disposed between at least one of the first envelope 130 and the second envelope 140 and the core 110.

The blocking layer 170 may be selectively disposed.

When the first envelope 130 and the second envelope 140 are both metal deposition envelopes, the blocking layer 170 may include at least one of the first envelope 130 and the second envelope 140 and the core material ( 110 may be disposed between.

When both the first envelope 130 and the second envelope 140 are aluminum foil envelopes, the blocking layer 170 may be omitted.

The blocking layer 170 is adhered to at least one of the first envelope 130 and the second envelope 140 by fusion or adhesion to at least one of the first envelope 130 and the second envelope 140. Can be integrated with

The blocking layer 170 may have a width smaller than at least one of the first envelope 130 and the second envelope 140.

In the case where the first envelope 130 and the second envelope 140 have the same thermal conductivity, preferably, both the first envelope 130 and the second envelope 140 are metal-deposited envelopes. The blocking layer 170 may have a larger width than the core material 110. Specifically, the core material 110 may include an upper surface 111b facing the blocking layer 170, and the blocking layer 170 may have a larger area than the upper surface 111b of the core material 110.

The extension 150 may include a blocking layer 170. At least one end 170a of the blocking layer 170 extending in the outward direction of the accommodation space 160 may be located between the first point A and the second point B of the extension 150.

The extension part 150 may include an inner part 150a on which the blocking layer 170 is disposed, and an outer part 150b positioned outside the inner part 150a in the outer direction of the accommodation space 160.

In the inner part 150a, the blocking layer 170 may be disposed between the first envelope 130 and the second envelope 140. In detail, the blocking layer 170 may be disposed between the fusion layer 133 of the first envelope 130 and the sealing layer 141 of the second envelope 140 at the inner side 150a.

In the inner part 150a, the blocking layer 170 may be adhered to at least one of the first envelope 130 and the second envelope 140 by fusion or adhesion. Specifically, the blocking layer 170 at the inner side 150a may be bonded to at least one of the fusion layer 133 of the first envelope 130 and the sealing layer 141 of the second envelope 140 by fusion or adhesion. Can be glued.

In the outer portion 150b, the first envelope 130 and the second envelope 140 may be adhered to each other by fusion or adhesion. In detail, the fusion layer 133 of the first envelope 130 and the sealing layer 141 of the second envelope 140 may be adhered to each other by fusion or adhesion.

The blocking layer 170 may be bent together with at least one of the first envelope 130 and the second envelope 140.

Vacuum insulator 100 according to the present invention can be used in a variety of products that need the insulation as well as the refrigerator.

In the above, specific embodiments have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and those skilled in the art may make various changes without departing from the spirit of the technical idea of the invention as set forth in the claims below. .

Claims

Core material;

A first shell material disposed outside the core material;

A blocking layer disposed between the core material and the first envelope material; And

And a second envelope formed in combination with the first envelope to form an accommodating space in which the core and the blocking layer are accommodated.

The barrier layer is fused or adhered to the first shell material to form a vacuum insulator, characterized in that integral with the first shell material.
The method of claim 1,

The first outer shell material and the second outer shell material is a vacuum insulating material, characterized in that having a different thermal conductivity.
The method of claim 1,

The first outer shell material has a lower thermal conductivity than the second outer shell material, characterized in that the vacuum insulating material.
The method of claim 1,

The first envelope includes an aluminum vapor deposition envelope,

The second jacket is a vacuum insulating material, characterized in that it comprises an aluminum foil jacket.
The method of claim 1,

Further comprising a block layer disposed between the core material and the second shell material,

And the block layer is fused or adhered to the second envelope to form an integral part with the second envelope.
The method of claim 5,

Wherein said first envelope and said second envelope comprise an aluminum vapor deposition envelope.
The method of claim 1,

The first envelope is,

A first region formed along an edge of the first envelope; And

And a second region formed inside the first region.

And the blocking layer is adhered to the second region.
The method of claim 7, wherein

And the blocking layer is further adhered to at least a portion of the first region.
The method of claim 7, wherein

And the second region includes a bent portion bent at an edge of the core material.
The method of claim 7, wherein

The first envelope has a lower thermal conductivity than the second envelope,

And the first region is bent such that the second envelope is located between the core and the first region.
The method of claim 1,

The barrier layer is a vacuum insulating material, characterized in that having the same width as the core material.
The method of claim 1,

The barrier layer is a vacuum insulating material, characterized in that having a smaller width than the core material.
The method of claim 1,

The first outer shell material is a vacuum insulating material, characterized in that it comprises a fusion layer facing the receiving space in the inner direction of the core material.
The method of claim 5,

The second envelope is a vacuum insulating material, characterized in that it comprises a sealing layer facing the receiving space in the inner direction of the core material.
The method of claim 7, wherein

The first envelope includes a fusion layer facing the receiving space in the inner direction of the core,

The second envelope includes a sealing layer facing the receiving space in the inner direction of the core,

And the fusion layer and the sealing layer are adhered to each other by fusion or adhesion in at least a portion of the first region.
The method according to any one of claims 13 to 15,

The fusion layer and the sealing layer is a vacuum insulating material, characterized in that it comprises at least one of linear low-density polyethylene (LLDPE) and low density polyethylene (LDPE).
The method of claim 15,

The blocking layer includes a base layer facing the fusion layer and adhered to the fusion layer,

The base layer is a vacuum insulating material, characterized in that bonded to the fusion layer by fusion or adhesion.
The method of claim 17,

The barrier layer further comprises at least one of the at least one metal layer and the inorganic deposition layer laminated on the base layer toward the core material.
The method of claim 15,

The blocking layer is a vacuum insulating material, characterized in that it comprises a metal layer facing the fusion layer, and bonded to the fusion layer.
The method of claim 15,

The first outer shell material further comprises at least one barrier layer disposed on the fusion layer in the outer direction of the core material.
The method of claim 20,

The at least one barrier layer,

Base layer; And

And a deposition layer provided on the base layer to block gas and moisture introduced into the core material.

The deposition layer is vacuum insulating material, characterized in that it comprises at least one of Al, SiO2 and Al2O3.
The method of claim 21,

The at least one barrier layer further comprises a transmission preventing layer provided between the fusion layer and the substrate layer,

The permeation prevention layer is vacuum insulation material comprising at least one of EVOH (Ethylene Vinyl Alcohol) and VM-EVOH (Vacuum Metalized-Ethylene Vinyl Alcohol).
Core material;

A first shell material disposed outside the core material;

A blocking layer disposed between the core member and the first envelope and bonded to the first envelope to be integral with the first envelope; And

And a second envelope having a greater thermal conductivity than the first envelope and forming an accommodating space in which the core and the barrier layer are accommodated, in combination with the first envelope.

And the first envelope and the second envelope are bonded to each other by fusion or adhesion to form an extension part extending in an outward direction of the accommodation space.
The method of claim 23, wherein

And the extension part is bent such that the first envelope is located outside the second envelope.
The method of claim 23, wherein

The first envelope is,

A fusion layer to which the blocking layer is bonded; And

And a barrier layer laminated on the outer side of the fusion layer.
The method of claim 25,

The second envelope includes a sealing layer surrounding the core,

And the fusion layer and the sealing layer are bonded to each other to form the extension part.
The method of claim 26,

The fusion layer and the sealing layer is a vacuum insulating material, characterized in that it comprises at least one of linear low-density polyethylene (LLDPE) and low density polyethylene (LDPE).
The method of claim 25,

The barrier layer is composed of a plurality,

The plurality of barrier layers,

Base layer; And

And a deposition layer disposed to face the substrate layer to block gas and moisture introduced into the core material.

The deposition layer is vacuum insulating material, characterized in that it comprises at least one of Al, SiO2 and Al2O3.
The method of claim 28,

The plurality of barrier layers further includes a transmission preventing layer provided between the fusion layer and the base layer,

The permeation prevention layer is vacuum insulation material comprising at least one of EVOH (Ethylene Vinyl Alcohol) and VM-EVOH (Vacuum Metalized-Ethylene Vinyl Alcohol).
The method of claim 29,

The plurality of barrier layers further includes a protective layer provided on the deposition layer to absorb external impact,

The protective layer is a vacuum insulating material, characterized in that it comprises at least one of PET (Polyethylene Phthalate) and nylon (Nylon).
The method of claim 25,

The blocking layer,

A first layer adhered to the fusion layer by fusion or adhesion; And

And a second layer laminated on the first layer in an inner direction of the core material.

And the second layer comprises at least one of an inorganic deposition layer and a plurality of metal layers.
Trauma forming an appearance;

An inner wound provided inside the outer wound to form a storage compartment; And

In the refrigerator comprising: a vacuum insulating material located between the outer wound and the inner wound,

The vacuum insulation material,

Core material;

A first envelope disposed outside the core to face the inner surface of the trauma;

A blocking layer disposed between the core member and the first envelope and bonded to the first envelope to be integral with the first envelope; And

A second envelope having a greater thermal conductivity than the first envelope and combining the first envelope to face the outer surface of the inner shell to form an accommodating space in which the core and the blocking layer are accommodated; and,

And the second envelope is adhered along an edge of the first envelope by fusion or adhesion.
The method of claim 32,

The first envelope is characterized in that the refrigerator is coupled to the inner surface of the outer box.
Core material;

A first shell material disposed outside the core material;

A second envelope having a different thermal conductivity from the first envelope and forming an accommodating space therein in combination with the first envelope; And

And an extension part provided to extend in an outward direction of the accommodation space.

And the first envelope and the second envelope are bonded to each other by fusion or adhesion at all of the extension portions.
The method of claim 34, wherein

The extension part connects a first point formed at an outermost position where the first envelope material and the second envelope material are bonded to each other in an outer direction of the accommodation space, and a second point where the extension part and the core material contact each other. Vacuum insulation material.
The method of claim 34, wherein

The first outer shell material has a lower thermal conductivity than the second outer shell material, characterized in that the vacuum insulating material.
The method of claim 36,

The first envelope includes an aluminum vapor deposition envelope,

The second jacket is a vacuum insulating material, characterized in that it comprises an aluminum foil jacket.
The method of claim 34, wherein

The first envelope and the second envelope each include a bonding layer facing the receiving space in the inner direction of the core,

Bonding layer of the first shell material and the second shell material is a vacuum insulating material, characterized in that bonded to each other by fusion or adhesion.
The method of claim 38,

The bonding layer is a vacuum insulating material comprising at least one of LLDPE (Linear Low-Density Polyethylene) and LDPE (Low Density Polyethylene).
And a barrier layer disposed between at least one of the first envelope and the second envelope and the core.
The method of claim 40,

The barrier layer is bonded to at least one of the first shell material and the second shell material vacuum insulating material, characterized in that integral with at least one of the first shell material and the second shell material.
The method of claim 40,

The barrier layer is a vacuum insulating material, characterized in that having the same width as the core material or smaller than the core material.
The method of claim 40,

The blocking layer is a vacuum insulating material, characterized in that having a larger width than the core material.
The method of claim 43,

The extension part connects a first point formed at an outermost position where the first envelope material and the second envelope material are bonded in an outer direction of the accommodation space, and a second point where the extension part and the core material contact each other.

At least one end of the blocking layer extending in the outward direction of the receiving space is positioned between the first point and the second point vacuum insulating material.
The method of claim 34, wherein

The vacuum insulating material further comprises a blocking layer disposed between any one of the first shell material and the second shell material having a low thermal conductivity and the core material.