Heat insulator

Abstract

The present invention provides a heat insulator comprising: a first plate; a second plate; and a vacuum space part provided between the first plate and the second plate. At least one curved extension part is provided on one side of the first plate, the first plate has a corner formed as a curved surface, and the curved extension part has an R value smaller than the R value at the corner of the first plate in the direction of the corner.

Description

Insulator

[0001] The present invention relates to an insulator.

[0002] First, there is the applicant's registered patent No. 10-0343719 (Patent Document 1). According to this patent, a vacuum adiabatic panel is manufactured, embedded in the wall of a refrigerator, and the exterior of the vacuum adiabatic panel is finished with a separate molded Styrofoam material. This method eliminates the need for foaming and improves insulation performance. However, this method has the drawback of increasing costs and complicating the manufacturing process.

[0003] As another example, there have been attempts to fabricate the entire refrigerator wall as a single piece of insulation. For example, U.S. Patent Publication No. US2040226956A1 (Patent Document 2) discloses a method for providing vacuum-insulated refrigerator structures. However, achieving a practical level of insulation by providing sufficient vacuum in the refrigerator walls is challenging. Specifically, this method suffers from several problems, including the difficulty in preventing heat transfer between the supporting portions of the outer and inner cases, which have different temperatures, the difficulty in maintaining a stable vacuum, and the difficulty in preventing deformation of the case due to negative vacuum pressure.

[0004] Japanese Patent Application Laid-Open No. 2011-247534 (Patent Document 3) discloses an insulation box that simplifies the bonding work and improves productivity when installing and preparing multiple vacuum insulation panels.

[0005] Patent Document 3 discloses an insulating case of a refrigerator comprising an inner case and an outer case and a plurality of vacuum insulation panels provided between them, and forming a plurality of wall sections of a refrigerator body, wherein the inner case is formed by combining a plurality of inner case partitions into which the entire inner case is divided, and at the same time, a plurality of vacuum insulation panels are formed in a shape corresponding to each inner case partition, and each of these vacuum insulation panels and each of the inner case partitions is installed.

[0006] Conventional insulators were manufactured by bending the first plate of thin plate and then welding the corners, which resulted in a high risk of leakage during welding of the thin plate, and the fixing time was also long due to the two processes of bending and welding.

[0007] [Prior Art Literature]

[0008] [Patent Document]

[0009] Registered patent 10-0343719

[0010] U.S. Patent Publication No. US20040226956A1

[0011] Japanese Patent Application Laid-Open No. 2011-247534A

[0012]

[0013] The present invention provides a technology for an insulator.

[0014] Optionally or additionally, the insulation of the present invention can mitigate the occurrence of tearing or wrinkling and provides a structural technology advantageous for bonding.

[0015] Optionally or additionally, the present invention provides a technique for reducing the risk of leakage during sealing (e.g. welding) of a thin plate.

[0016] Alternatively or additionally, the present invention provides a technique for improving vacuum reliability compared to the existing method by changing the conventional method which was performed by two processes of bending and sealing (e.g. welding).

[0017] In order to solve the above problems related to the present invention, the insulator of the present invention may include a first plate; and a second plate. The insulator may include a vacuum space provided between the first plate and the second plate. At least one curved extension may be provided on one side of the first plate. A corner of the first plate may be formed as a curved surface. An R value of the curved extension may be smaller than an R value in a corner direction at the corner of the first plate. The curved extension may include a first curved extension provided on one side of the first plate; and / or a second curved extension connected to the first curved extension. An R value of any one of the first and second curved extensions may be smaller than an R value in a corner direction at the corner of the first plate.

[0018] The first plate may further include a straight extension provided between the first curved extension and the second curved extension.

[0019] At least one inflection point may be provided between the first curved extension and the second curved extension.

[0020] The first plate may further include a corner curved extension extending from one side of the curved extension and / or provided at a corner of the first plate. The corner curved extension may be configured to have an R value in the corner direction and a direction intersecting the corner direction. The corner curved extension may have an R value in the corner direction greater than an R value in the direction intersecting the corner direction.

[0021] The above corner curved extension may be configured such that the R value in the corner direction varies from one side to the other. The minimum value of the R value in the corner direction may be greater than the R value in the direction intersecting the corner direction.

[0022] The second plate may have a support portion that is supported on a portion further extended from the curved extension portion.

[0023] The first plate may further include a first portion. The first portion defines at least a portion of the vacuum space. At least a portion of the first portion may be provided flat. The first portion and the curved extension may be formed as a single member.

[0024] The insulator of the present invention may include a bar positioned between the first plate and the second plate to maintain the vacuum space. The bar is provided in multiple pieces, and among the multiple pieces, the bar positioned at the outermost end includes a rounded portion.

[0025] The first plate may include a support plate installed in the vacuum space to support the first plate. The support plate may include a rounded portion near the edge of the first plate. The R value of the curved extension may be 7 mm or more. The first plate may be manufactured by drawing forming.

[0026] It may be an insulator having at least two sides connected so that parts of the side ends overlap each other. The two adjacent insulators may be arranged so that parts of their respective curved extensions face each other.

[0027] At least one of the two adjacent insulators may include a plurality of bars arranged between the first plate and the second plate to maintain the vacuum space. At least one of the plurality of bars of the first insulator may be connected to support a curved extension of the first plate of the second insulator.

[0028] At least one of the two adjacent insulators may include a support plate supported by at least one of the first plate and the second plate to maintain the vacuum space. The support plate of the first insulator may be connected to support a curved extension of the first plate of the second insulator.

[0029]

[0030] The insulator of the present invention can reinforce the insufficient strength of a thin first plate and provide a structure capable of resisting a bending force applied to the first plate.

[0031] The insulator of the present invention can provide a structure that reduces the possibility of a tearing phenomenon occurring near the edge of the first plate.

[0032]

[0033] FIG. 1 is a perspective view showing the exterior of a refrigerator according to one embodiment of the present invention.

[0034] Figure 2 is a conceptual diagram for explaining the insulation provided in the refrigerator of Figure 1.

[0035] Figure 3 is a conceptual diagram for explaining a third plate provided on the plate of Figure 2.

[0036] Figure 4 is a conceptual diagram for explaining a heat transfer resistor provided on the plate of Figure 3.

[0037] Figure 5 is a perspective view showing the outer surface of the first plate according to the present invention.

[0038] Figure 6 is a cross-sectional view showing A-A' of Figure 5.

[0039] Figure 7 is an enlarged view showing part A of Figure 6.

[0040] Figure 8 is a perspective view of the insulator according to the present invention as viewed from the inner surface of the first plate.

[0041] Fig. 9 is a cross-sectional view showing B-B' of Fig. 8.

[0042] Figure 10 is an enlarged view showing part B of Figure 9.

[0043] Fig. 11 is a perspective view showing the vicinity of a corner on the inner surface of the first plate according to the present invention.

[0044] Fig. 12 is a cross-sectional view showing an example of a corner side portion where the first and second insulation bodies are joined.

[0045] Fig. 13 is a cross-sectional view showing another example of a corner side portion where the first and second insulation bodies are joined.

[0046] FIG. 14a is a perspective view showing the vicinity of a corner portion having a through hole on the inner surface of the first plate according to the present invention.

[0047] FIG. 14b is a perspective view showing the vicinity of a corner portion in which a through-hole is provided in the inner surface of the first plate according to the present invention.

[0048] Figure 15 is a cross-sectional view showing an insulator according to the present invention.

[0049] From now on, [Common description] describing the parts commonly defined in all embodiments of the present invention is described.

[0050] Optionally, the insulator of the present invention may be provided as a single insulator. For example, the insulator may provide a first wall extending in one direction; and a second wall extending in a direction different from the one direction. Optionally, the insulator of the present invention may include a first insulator and a second insulator. The second insulator may be provided as a separate component separated from the first insulator. The second insulator may be connected to the first insulator by a connecting member. In the present invention, the connecting member may be defined as a joint. The second insulator may include a portion extending in the same direction as the first insulator. The second insulator may include a portion extending in a different direction from the first insulator. The second insulator may include a portion connected to the first insulator, or may include a portion arranged to overlap the first insulator in at least one direction. The insulator may be a vacuum insulator including a vacuum space or a non-vacuum insulator not including a vacuum space. The above insulation may be a combination of the vacuum insulation and the non-vacuum insulation. The vacuum space provided in the second insulation may include a portion extending in the same direction as the vacuum space provided in the first insulation. The vacuum space provided in the second insulation may include a portion extending in a different direction from the vacuum space provided in the first insulation. The vacuum space provided in the second insulation may include a portion arranged to overlap with the vacuum space provided in the first insulation in at least one direction. The insulation may be provided in the form of a panel. In the present invention, "panel" is described below as an example, but an invention in which the "panel" is replaced with the "insulation" may also be included in the present invention. For example, in the present invention, if it is described below that at least two panels of the main body form the exterior of the refrigerator, it may be understood or interpreted that at least two insulations of the main body form the exterior of the refrigerator.

[0051] Optionally, the refrigerator of the present invention may include a main body. The main body may include at least one storage compartment. The main body may include a partition wall dividing a first storage compartment and a second storage compartment. The first storage compartment joint may include a first first storage compartment joint, a second first storage compartment joint, and / or a third first storage compartment joint. The second storage compartment joint may be provided on one side of the second storage compartment. The second storage compartment joint may include a first joint, a second joint, and / or a third joint.

[0052]

[0053] The partition wall may include the vacuum insulation and / or the non-vacuum insulation. The refrigerator of the present invention may include a door. The refrigerator of the present invention may include a machine room disposed on one side of the main body. At least one of a compressor, a heat-radiating component (e.g., a condenser, a heat-radiating portion of a thermoelectric module, a heat sink for heat exchange with the heat-radiating portion of a thermoelectric module, etc.), and a cooling fan may be disposed in the machine room. The machine room may include at least one of a first cover (e.g., a side cover) forming at least a portion of a first surface (e.g., a side surface), a second cover (e.g., a back cover) forming at least a portion of a second surface (e.g., a rear surface), a third cover (e.g., an upper cover) forming at least a portion of a third surface (e.g., a top surface), a fourth cover (e.g., a bottom cover) forming at least a portion of a fourth surface (e.g., a bottom surface), and a fifth cover (e.g., a front cover) forming at least a portion of a fifth surface (e.g., a front surface). One or more of the above first, second, third, fourth, and fifth covers may be provided as a single part or in multiple parts. The machine room of the refrigerator of the present invention may include the insulator.

[0054]

[0055] The panel may include at least one of a first plate, a second plate, and a side plate. A vacuum space may be provided between the first plate and the second plate. The refrigerator of the present invention may include at least one panel. The present invention may include at least one of a first panel forming at least a portion of a first side (e.g., a side) of the refrigerator; a second panel forming at least a portion of a second side (e.g., a rear) of the refrigerator; a third panel forming at least a portion of a third side (e.g., a top) of the refrigerator; a fourth panel forming at least a portion of a fourth side (e.g., a bottom) of the refrigerator; and a fifth panel forming at least a portion of a fifth side (e.g., a front) of the refrigerator. At least one of the first, second, third, fourth, and fifth sides of the refrigerator may provide at least a portion of a wall forming the main body or may provide at least a portion of a wall forming the door. At least one of the first, second, third, fourth, and fifth panels may be provided as a single component or may be provided in multiples. The joint may be provided to connect a corner of the refrigerator or to connect a first wall and a second wall forming a wall of the refrigerator to each other. The joint may be provided to connect the panel to another component (e.g., another panel). The joint may be provided to connect at least two of the first, second, third, fourth, and fifth panels. At least one of the first, second, third, fourth, and fifth panels may be provided in plurality, and the joint may be provided to connect the plurality of panels to each other. The joint may include a first surface, a second surface, and / or a third surface. The first surface of the joint may cover at least a portion of at least one of the first, second, third, fourth, and fifth panels. The second surface of the joint may cover at least a portion of at least another one of the first, second, third, fourth, and fifth panels. The third surface of the joint may be connected to the first surface of the joint and / or the second surface of the joint.The third side of the joint may be connected to an edge of the first side of the joint and / or an edge of the second side of the joint. The third side of the joint may be formed to be inclined to at least one of the first side of the joint and the second side of the joint. At least some of the first, second, third, fourth, and fifth panels may be provided as panels having a first insulation performance per unit thickness, and at least other some of the first, second, third, fourth, and fifth panels may be provided as panels having a second insulation performance per unit thickness. The first insulation performance and the second insulation performance may be different.

[0056] The insulator or refrigerator of the present invention may include a duct. The duct may include a first duct, a second duct, and / or a third duct. The first duct may supply cold air to the first storage compartment or the second storage compartment. The second duct may accommodate an evaporator. The third duct may be connected to the first duct and the second duct in communication with each other. The third duct may include a first surface, a second surface, a third surface, a fourth surface, and / or a fifth surface. The first surface of the third duct may surround the first surface of the joint. The second surface of the third duct may surround the second surface of the joint. The third surface of the third duct may surround the third surface of the joint. The third duct may include a fourth surface. The fourth surface of the third duct may extend from the first surface of the third duct or may be arranged to face the second storage compartment. The fifth side of the third duct may extend from the second side of the third duct or may be arranged to face the evaporator.

[0057]

[0058] The insulator or refrigerator of the present invention may include a block. The block may include a portion extending in the same direction as one or more of the first, second, third, fourth, and fifth panels. The block may include a portion extending in a different direction from one or more of the first, second, third, fourth, and fifth panels. The block may include a first side (e.g., a left side), a second side (e.g., a right side), a third side (e.g., a rear side), a fourth side (e.g., a lower side), a fifth side (e.g., a top side), and a sixth side (e.g., a front side). Some of the first, second, third, fourth, and fifth sides of the refrigerator may be provided in the form of panels, and other parts of the first, second, third, fourth, and fifth sides of the refrigerator may be provided in the form of blocks. The block may be provided as the non-vacuum insulator. For example, the block may be a block cover and / or a PU foam filled inside the block cover. The above block may include at least one of a first block portion (e.g., a side block portion), a second block portion (e.g., a rear block portion or a front block portion), and a third block portion (e.g., a bottom block portion or a top block portion). The first, second, and third block portions may each be provided in multiples. At least two of the first, second, and third block portions may be connected to provide the joint. The third block portion may form one side of the first storage room and / or one side of the machine room. The third block portion may be provided as a partition wall, or may form one side of the first storage room.

[0059] The insulator or refrigerator of the present invention may include an insulating reinforcement member. The insulating reinforcement member may include a portion connected to one side of the block, or a portion formed to protrude from the block.

[0060]

[0061] The insulator or refrigerator of the present invention may include a hinge. The hinge may be positioned on one side of the insulator. The hinge may be positioned on the body and / or door of the refrigerator.

[0062] The hinge may include at least one of a hinge fixing portion, a hinge shaft, and a hinge connecting portion that protrudes and extends from the hinge fixing portion, which is a portion that the hinge is connected to at least one of the insulator, the main body of the refrigerator, and the door of the refrigerator. The hinge may include at least one of a first hinge (e.g., an upper hinge) arranged on one side of a wall forming the first storage compartment, a second hinge (e.g., a middle hinge) arranged on the partition wall, and a third hinge (e.g., a lower hinge) of the wall forming the second storage compartment. The insulator or the refrigerator of the present invention may include at least one of a hinge reinforcing frame that reinforces the strength of the hinge; a cover to which the hinge is coupled; and a hinge reinforcing plate that is arranged or received so as to be connected to the panel. The hinge reinforcing frame may include at least one of a first, a second, a third, and a fourth frame portion. At least two of the first, second, third, and fourth frame portions may extend in different directions.

[0063]

[0064] The insulator or refrigerator of the present invention may include a support frame. The support frame may support one side of the panel. The support frame may include a connecting portion. The block may be supported by the support frame in the machine room. The support frame may include a first support frame and / or a second support frame.

[0065] The insulator or refrigerator of the present invention may include an inner cover. The inner cover may be placed between the cover of the machine room and the hinge reinforcement frame (e.g., the first frame portion).

[0066]

[0067] The insulator or refrigerator of the present invention may include a decoration. The decoration may be placed on the surface of the insulator. The decoration may be placed on the surface of the body and / or door of the refrigerator. For example, the decoration may be placed on the outer surface of the insulator or the outer surface of the refrigerator.

[0068]

[0069] The insulator or refrigerator of the present invention may include a hot line. The hot line may be positioned on the surface of the insulator. The decoration may be positioned on the surface of the body and / or door of the refrigerator. The hot line may be positioned between the decoration and the surface of the insulator. The hot line may be positioned between the decoration and the surface of the refrigerator and / or between the decoration and the surface of the door. (034)

[0070]

[0071] The insulator or refrigerator of the present invention may include a casing. The casing may be an outer casing or an inner casing. The outer casing may be connected to the second plate. The outer casing may be provided to cover at least a portion of the second plate. The outer casing may be provided in contact with the second plate or spaced apart from the second plate by a predetermined distance. The inner casing may be connected to the twelfth plate. The inner casing may be provided to cover at least a portion of the first plate. The inner casing may be provided in contact with the first plate or spaced apart from the first plate by a predetermined distance.

[0072]

[0073] The insulator or refrigerator of the present invention may include a drawer and / or a drawer guide. The drawer guide may include a first storage chamber drawer guide provided in a first storage chamber. The first storage chamber drawer guide may include at least one of a first plate (e.g., a side plate), a second plate (e.g., a bottom plate), a third plate (e.g., a top plate), and a fourth plate (e.g., a middle plate).

[0074] The above drawer guide may be provided with a second storage chamber drawer guide provided in the second storage chamber.

[0075]

[0076] The insulator or refrigerator of the present invention may include a shelf and / or a shelf support frame.

[0077]

[0078] The specific details for carrying out the invention are divided into the [common description] described above and the [description based on drawings] described below. In the specific details for carrying out the invention, each specific description described for carrying out the invention can be understood as an embodiment of the present invention. In the specific details for carrying out the invention, a content that combines at least two or more of the specific details described for carrying out the invention can also be understood as an embodiment of the present invention. For example, each paragraph and combination of each paragraph in the [common description] section or the section described based on the drawings in the [specific details for carrying out the invention] can be understood as an embodiment of the present invention. As another example, each sentence and combination of each sentence in the [common description] section or the section described based on the drawings in the [specific details for carrying out the invention] can be understood as an embodiment of the present invention.

[0079] From now on, based on each drawing, the [Description based on drawing] section describing the present invention will be described.

[0080] Referring to FIGS. 1 to 4, the insulator (10) of the present invention may include plates (11, 12, 14). In the present invention, the term “plate” may mean at least one of the first and second plates (11, 12) and the side plate (14). Optionally, the insulator of the present invention may include a vacuum space (15). The vacuum space (15) may be formed by a wall provided by the plates (11, 12, 14). The vacuum space (15) may have a thickness in a first direction. The plates (11, 12, 14) may include a first plate (11); and a second plate (12). The first plate (11) may include a portion extending in a direction different from the first direction. The second plate (12) may include a portion extending in a first direction different from the first direction. Optionally, the plate may include a side plate (14) including a portion extending in the first direction. For example, the insulator (10) of the present invention may be provided such that the first and second plates (11, 12) and the side plate (14) are each provided as separate parts, and the separated parts are connected to each other. As another example, the insulator (10) of the present invention may be provided such that at least two parts among the first and second plates (11, 12) and the side plate (14) are provided as an integral part, and the separated parts are connected to each other. As yet another example, the insulator (10) of the present invention may be provided such that the portions connecting the first and second plates (11, 12) and the side plate (14) to each other are each provided as an integral part. In this case, the first plate (11) may be provided as a separate part, and the separated parts may be provided as a connected part. Alternatively, the second plate (12) may be provided as separate parts, and the separated parts may be provided to be connected to each other.Alternatively, the side plates (14) may be provided as separate parts, and the separated parts may be provided to be connected to each other. Optionally, the insulator (10) of the present invention may include a third plate that is arranged on at least a portion of the insulator (10) or connected to at least a portion of the plates (11, 12, 14). The third plate may include a portion that is thinner or has the same thickness as the plates (11, 12, 14). The third plate may include a portion that is thicker than the plates (11, 12, 14). The third plate may be arranged in the vacuum space (15) or outside the vacuum space (15). Examples of the third plate may include a heat transfer resistor (23, 26a, 26b, 34), a deformation resistor (13), etc., described in the present invention.

[0081] Optionally, the insulator (10) of the present invention may include a thermal insulator (23, 26a, 26b, 34) for reducing the amount of heat transfer between a first space provided near the first plate (11) and a second space provided near the second plate (12), or for reducing the amount of heat transfer between the first plate (11) and the second plate (12). A thermal insulator that reduces the amount of heat transfer by conduction may be defined as a conduction resistance sheet (26a, 26b), and a thermal insulator that reduces the amount of heat transfer by radiation may be defined as a radiation resistance sheet (23). The thermal insulator (23, 26a, 26b, 34) may be provided as a porous material (34) or as a filler (34). The filler whose interior is filled with a porous material can be defined as a porous material (34). The heat transfer resistor (23, 26a, 26b, 34) may include at least one of the radiation resistance sheet (23), the porous material (34), the filler (34), and the conduction resistance sheet (26a, 26b), or a mixture of at least two of them. The heat transfer resistor (23, 26a, 26b, 34) may be connected to at least a portion of the plate (11, 12, 14) or may be provided so as not to come into contact with the plate (11, 12, 14). A shield (24) may be provided on the outside of the heat transfer resistor (23, 26a, 26b, 34) to provide insulation. A connecting frame (17) may be provided on the outside of the heat transfer resistor (23, 26a, 26b, 34). The insulator (10) may include a conduit penetrating the vacuum space (15). The conduit may be formed by providing a pipe wall (32) as a separate component, or may be provided in a form in which the pipe wall (32) is deleted and only a through hole is formed in the plate. The side plate (14) may be provided near the conduit, or the heat transfer resistor (23, 26a, 26b, 34) may be provided.

[0082] Optionally, the insulator (10) of the present invention may include a deformation resistance body (13) connected to at least a portion of the plates (11, 12, 14) to increase the internal deformation of the plates (11, 12, 14). When the deformation resistance body is provided in the form of a plate, the deformation resistance body may be referred to as a deformation resistance plate.

[0083] Optionally, the insulator (10) of the present invention may include a support (19) connected to at least a portion of the plates (11, 12, 13) and maintaining the vacuum space (15). The support (19) may include a bar (20) having a portion extending in a first direction, which is a thickness direction of the vacuum space (15). The support (19) may include a support plate (22) having a portion extending in a direction different from the first direction. The support (19) may include a plurality of bars (20) and a connecting plate (21) connecting the plurality of bars (20). The support (19) may include at least one of the bars (20), the connecting plate (21), and the supporting plate (22), or a mixture of at least two of them.

[0084] Optionally, the insulator (10) of the present invention may include a component joint that provides a portion where components (24, 28, 32) are placed or supported. For example, when the component joint is provided in the form of a plate, the component joint may be referred to as a component joint plate. The component connected to the component joint may include a penetrating component that is arranged to penetrate at least a portion of the insulator (10) or at least a portion of the plate (11, 12, 14). The component connected to the component joint may include a surface component that is arranged to be connected to the surface of the insulator (10) or to be connected to the surface of the plate (11, 12, 14). The penetrating component may be a component that forms a path through which a fluid (electricity, refrigerant, water, air, etc.) passes. The penetrating component may be provided in the form of a tube. The tube may include a straight tube and / or a curved tube. The tube may be provided in multiples or may extend in one direction. The above-mentioned penetrating member may include at least one of the pipe, the first withdrawal portion, and the second withdrawal portion. In the present invention, a fluid is defined as all types of flowing objects. Fluids include moving solids, liquids, gases, and electricity. The above-mentioned penetrating member may be a member that forms a path through which a refrigerant for heat exchange passes, such as a SLHX (Suction Line Heat Exchanger) or a refrigerant pipe. The SLHX may be understood as a suction line heat exchanger that causes heat exchange between the refrigerant that has passed through the evaporator and the refrigerant before being introduced into the evaporator. The above-mentioned penetrating member may be a wire that supplies electricity to the apparatus. The above-mentioned penetrating member may be a member that forms a path through which air can pass, such as a duct or port through which a fluid flows along its surface. The port may include an exhaust port that provides a path through which air is exhausted from a space formed between the first plate (11) and the second plate (12) to form the vacuum space (15).The above-mentioned penetrating parts may be paths through which fluids such as coolant, hot water, ice, and defrost water may pass. Examples of the above-mentioned surface parts may include perimeter insulation, side panels, injected foam, pre-prepared resin, hinges, latches, baskets, drawers, shelves, lights, sensors, evaporators (7), front decorations, and hot lines, heaters, exterior covers, and interior covers.

[0085] Through FIGS. 1 to 4, terms such as plate, first plate, second plate, side plate, third plate, vacuum space, heat transfer resistor, conduction resistance sheet, radiation resistance sheet, porous material, filler, component joint, joint, support, bar, support plate, connecting plate, deformation resistor, deformation resistance plate, component joint, component joint plate, penetration component, surface component, duct, port, etc. are defined. In the present invention, when the above terms are used in parts other than the parts described with respect to FIGS. 1 to 4, the terms used should be interpreted as defined in FIGS. 1 to 4.

[0086] In the present invention, the connection of object A to object B can be defined as that at least a portion of object A and at least a portion of object B are directly connected, or that at least a portion of object A and at least a portion of object B are connected via an intermediary between objects A and B. In a variation, the connection of object A to object B can include that objects A and object B are prepared as a single body in a shape in which they are connected in the above-described manner. In the present invention, examples of connection can be support, combine, and seal, which will be described later. In the present invention, the support of object A by object B can be defined as that object A is restricted from moving in one or more of the +X, -X, +Y, -Y, +Z, and -Z axis directions by object B. In the present invention, examples of support can be combination and seal, which will be described later. In the present invention, it can be defined that object A is combined with object B, meaning that object A is restricted from moving in one or more of the X, Y, and Z-axis directions by object B. In the present invention, an embodiment of the combination can be a sealing, which will be described later. In the present invention, it can be defined that object A is sealed with object B, meaning that movement of fluid is not permitted at a portion where object A and object B are connected. In the present invention, at least one object, that is, at least a part of object A and object B, can be defined as including a part of object A, the entirety of object A, a part of object B, the entirety of object B, a part of object A and a part of object B, a part of object A and the entirety of object B, the entirety of object A and a part of object B, and the entirety of object A and the entirety of object B. In the present invention, it can be defined that plate A can be a wall defining space A, meaning that at least a part of plate A can be a wall forming at least a part of space A.That is, at least a part of plate A may be a wall forming space A, or plate A may be a wall forming at least a part of space A. In the present invention, the central part of an object may be defined as a part located in the center of the third part when the object is divided into three parts based on the longitudinal direction of the object. The periphery of an object may be defined as a part located on one or the other side of the central part of the third part. The periphery of an object may include a surface in contact with the central part and a surface opposite thereto. The opposite surface may be defined as the border or edge of the object. In the present invention, the degree to deformation resistance indicates the degree to which an object resists deformation, and may be defined as a value determined by the shape including the thickness of the object, the material of the object, and the processing method of the object. In the present invention, the degree of heat transfer resistance indicates the degree to which an object resists heat transfer, and may be defined as a value determined by the shape including the thickness of the object, the material of the object, and the processing method of the object. In the present invention, the heat transfer resistance can be defined as the sum of at least one or at least two of the degree of conduction resistance, the degree of radiation resistance, and the degree of convection resistance. The terms “upper side,” “lower side,” “right side,” “left side,” “front side,” and “rear side” used in the following description will be understood through the coordinate system illustrated in FIGS. 1 and 5. An example of “+Z” means “upper side,” an example of “-Z” means “lower side,” an example of “+Y” means “right side,” an example of “-Y” means “left side,” an example of “+X” means “front side,” and an example of “-X” means “rear side.”The forward and backward direction used in this specification may be an example of the X-axis direction, the left and right direction may be an example of the Y-axis direction, and the up and down direction may be an example of the Z-axis direction.

[0087] The insulator (10) of the present invention can be applied to a refrigerator (1). The refrigerator (1) may include a main body (2) provided with a cavity (9) capable of storing stored items, and a door (3) provided to open and close the main body (2). A cold source for supplying cold air (Cold) to the cavity (9) may be provided. For example, the cold source may be an evaporator (7) that evaporates a refrigerant to remove heat. The refrigerator may include a compressor (4) that compresses the refrigerant. The refrigerator may include a condenser (5) that condenses the compressed refrigerant. The condenser (5) may be connected to an expander (6) that expands the condensed refrigerant.

[0088] The first plate (11) has at least one curved extension (11c, 11e) provided on one side. The corner of the first plate (11) may be formed as a curved surface. The R value of the curved extension (11c, 11e) is formed to be smaller than the R value in the corner direction at the corner of the first plate (11).

[0089] In the present invention, the corner of the first plate (11) may be any one of a first corner curved extension (11k), a second corner curved extension (11l), and a corner extension (11m).

[0090] Referring to FIGS. 7 and 10, an example is shown in which two curved extensions (11c, 11e) are provided on one side of a first plate (11). The first plate (11) can define at least a portion of a vacuum space (15). The first plate (11) can have a first portion (11a, or plate portion) of which at least a portion is provided flat. An example in which curved extensions (11c, 11e) are connected to the first portion (11a) is shown in FIG. 11. As described below, the first portion (11a) and the curved extensions (11c, 11e) can be formed as a single member. For this purpose, the first plate (11) of the present invention can be formed by a drawing method.

[0091] In Fig. 11, a curved surface formed at the corner of the first plate (11) near the curved extensions (11c, 11e) is illustrated.

[0092] In this way, the curved extension portion (11c, 11e) is formed as a curved surface and has a predetermined R value to reinforce the insufficient strength of the thin first plate (11).

[0093] The curved extension (11c, 11e) increases the moment of inertia of the first plate (11), so that it can strongly resist the bending force applied to the first plate (11).

[0094] In the present invention, the first plate (11) must have a minimum R value. The R value of the curved extension portion (11c, 11e) is formed to be smaller than the R value in the corner direction at the corner of the first plate (11), so that tearing near the corner of the first plate (11) can be prevented during the forming process of the first plate (11).

[0095] As illustrated in FIGS. 7, 10 and 11, the curved extensions (11c, 11e) may include a first curved extension (11c) and a second curved extension (11e).

[0096] The first curved extension (11c) may be provided on one side of the first plate (11). The first curved extension (11c) may be provided on one side of the first part (11a).

[0097] The second curved extension (11e) can be connected to the first curved extension (11c).

[0098] The R value of any one of the first and second curved extensions (11c, 11e) can be formed to be smaller than the R value in the corner direction at the corner of the first plate (11).

[0099] The first curved extension (11c) is provided on one side of the first plate (11). As shown in FIGS. 5 to 11, the first curved extension (11c) can extend from the edge of the first plate (11) in a direction toward the second plate (12).

[0100] The first curved extension (11c) may form a surface in one direction and / or may be protruded. The surface of the first curved extension (11c) may have an R value. The R value of the surface of the first curved extension (11c) may be referred to as a punch R value. In the present invention, the first curved extension (11c) may have an R value of 7 mm or more. Preferably, the first curved extension (11c) may have an R value of 7 mm.

[0101] The second curved extension (11e) may have a curvature in a different direction than the first curved extension (11c). FIG. 10 illustrates the first curved extension (11c) and the second curved extension (11e) which are formed to protrude or convexly face different directions. For this purpose, an inflection point may be provided between the first curved extension (11c) and the second curved extension (11e). That is, the curvature directions of the first curved extension (11c) and the second curved extension (11e) may be different directions.

[0102] Fig. 11 illustrates an example in which the second curved extension (11e) forms a concave curved surface. The curved surface of the second curved extension (11e) may have an R value. The R value of the curved surface of the second curved extension (11e) may be referred to as a die R value. In the present invention, the second curved extension (11e) may have an R value of 7 mm or more. Preferably, the second curved extension (11e) may have an R value of 7 mm.

[0103] The first curved extension (11c) and the second curved extension (11e) each have a predetermined R value to reinforce the insufficient strength of the thin first plate (11).

[0104] The first curved extension (11c) and the second curved extension (11e) increase the moment of inertia of the first plate (11), so that it can strongly resist the bending force applied to the first plate (11).

[0105] The first plate (11) may further include a first linear extension (11f). The first linear extension (11f) may be provided between the first curved extension (11c) and the second curved extension (11e). The first linear extension (11f) is arranged in the height direction of the vacuum space (15). The first linear extension (11f), together with the first curved extension (11c) and the second curved extension (11e), may define the height of the insulator (10).

[0106] In the first plate (11), the first curved extensions (11c) may be arranged in two directions intersecting each other. A first corner curved extension (11k) may be further provided between the first curved extensions (11c) arranged in the two directions.

[0107] In Fig. 11, an example is shown in which a first corner curved extension (11k) is provided between a first curved extension (11c) that is arranged to face different directions.

[0108] The first corner curved extension (11k) is formed to have R values ​​in at least two directions. For example, the corner curved extensions (11k, 11l) may have curvature values ​​in two directions that intersect each other.

[0109] The first corner curved extension (11k) may have a corner R value that is the same as the R value of the first curved extensions (11c) on both sides of the first corner curved extension (11k). The first corner curved extension (11k) may have a corner R value that is an R value formed parallel to the corner extension (11m) described later.

[0110] The first corner curved extension (11k) may have a predetermined R value in a direction parallel to the first curved extension (11c). For example, the first corner curved extension (11k) may have the same R value as the first curved extension (11c).

[0111] The curve of the first corner curved extension (11k) in a direction parallel to the first curved extension (11c) may be referred to as a punch R value. In the present invention, the punch R value of the first corner curved extension (11k) may be 7 mm or more.

[0112] The first corner curved extension (11k) may have a corner R value greater than the punch R value. The first corner curved extension (11k) may have a corner R value equal to or less than the corner R value of the corner extension (11m).

[0113] The corner R value of the first corner curved extension (11k) may have a section that varies from top to bottom. For example, in the present invention, one end of the first corner curved extension (11k) may have a corner R value of 8 mm or more, and the other end of the first corner curved extension (11k) may have a corner R value of 15 mm or more. That is, the first corner curved extension (11k) is formed to have a corner R value of 8 mm to 15 mm that varies from one end to the other end. The direction from one end to the other end may be understood as a direction from the first plate (11) toward the second plate (12). That is, one end may be a position that is arranged relatively close to the first plate (11), and the other end may be a position that is arranged relatively far from the first plate (11).

[0114] In this way, the corner curved extension (11k, 11l) can be formed so that the R value in the corner direction is greater than the R value in the direction intersecting the corner direction.

[0115] In the present invention, the forming of the first plate (11) may be performed, for example, through drawing forming. In order to prevent tearing near the corners of the first plate (11) during the forming process of the first plate (11), a minimum R value must be provided.

[0116] In the present invention, the corner curved extensions (11k, 11l) can be formed so that the R value in the corner direction is greater than the R value in the direction intersecting the corner direction. This makes it possible to prevent tearing near the corners of the first plate (11) during the forming process of the first plate (11). In addition, the insufficient strength of the thin first plate (11) can be reinforced. It can also strongly resist bending force applied to the first plate (11).

[0117] In the present invention, the first plate (11) near the corner where the first corner curved extension (11k) is provided is defined as a corner section (11o), and a portion disposed near the corner section (11o) so as to be adjacent to the corner section (11o), such as the vicinity where the first straight extension (11f) or the second straight extension (11g) is disposed, is defined as a non-corner section (11p).

[0118] In the present invention, the first plate (11) may be provided in a square shape, and corner portions (11o) may be provided at each of the four corners.

[0119] The above corner portion (11o) and non-corner portion (11p) may be the same in each corner portion of the second plate (12) provided in a square shape.

[0120] In the first plate (11), the second curved extensions (11e) can be arranged in two directions intersecting each other. A second corner curved extension (11l) can be provided between the second curved extensions (11e) arranged in the two directions.

[0121] In Fig. 11, an example is shown in which a second corner curved extension (11l) is provided between a second curved extension (11e) and a second curved extension (11e) that are arranged to face different directions.

[0122] The second corner curved extension (11l), like the first corner curved extension (11k) described above, is formed to have an R value in at least two directions. The second corner curved extension (11l) may have a bias R value that is the same as the R value of the second curved extensions (11e) on both sides of the second corner curved extension (11l). The second corner curved extension (11l) may have a corner R value that is an R value formed parallel to the corner extension (11m) described below.

[0123] The second corner curved extension (11l) may have a predetermined R value in a direction parallel to the second curved extension (11e). For example, the second corner curved extension (11l) may have the same R value as the second curved extension (11e).

[0124] The R of the surface in the direction parallel to the second curved extension (11e) of the second corner curved extension (11l) may be referred to as the die R value. In the present invention, the die R value of the second corner curved extension (11l) may be 7 mm or more.

[0125] The second corner curved extension (11l) may have a corner R value greater than the die R value. The second corner curved extension (11l) may have a corner R value equal to or greater than the corner R value of the corner extension (11m).

[0126] The corner R value of the second corner curved extension (11l) may have a section that varies from one side to the other side. For example, in the present invention, one end of the second corner curved extension (11l) may have a corner R value of 15 mm or more, and the other end of the second corner curved extension (11l) may have a corner R value of 22 mm or more. That is, the second corner curved extension (11l) is formed to have a corner R value of 15 mm to 22 mm that varies from one end to the other end. The direction from one side to the other side may be understood as a direction from the first plate (11) toward the second plate (12). That is, one side may be a position that is arranged relatively close to the first plate (11), and the other side may be a position that is arranged relatively far from the first plate (11).

[0127] The first plate (11) may further include a second linear extension (11g). The second linear extension (11g) may be arranged in a direction intersecting the first linear extension (11f).

[0128] The second linear extension (11g) may be provided between the first curved extension (11c) and the second curved extension (11e). The second linear extension (11g) may have a predetermined width in the height direction of the vacuum space (15). The second linear extension (11g) is arranged to extend in the length direction of the vacuum space (15). The second linear extension (11g), together with the first curved extension (11c) and the second curved extension (11e), may define a portion of the wall in the height direction of the insulator (10).

[0129] The first plate (11) may have a corner extension (11m) provided between the first linear extension (11f) and the second linear extension (11g). The corner extension (11m) may form a part of the corner of the first plate (11). The corner extension (11m) may have a corner R value defined at the corner between the first linear extension (11f) and the second linear extension (11g). For example, the corner R value of the corner extension (11m) may be 15 mm. The corner extension (11m) may have the same corner R value from the top to the bottom.

[0130] The corner extension (11m) is provided between the first corner curved extension (11k), the second corner curved extension (11l), and the first straight extension (11f). As illustrated in Fig. 11, the corner extension (11m) can be connected to the first corner curved extension (11k) on one side. The corner extension (11m) can be connected to the second corner curved extension (11l) on the other side.

[0131] The second plate (12) has a support portion (12f). The support portion (12f) is supported by the second curved extension portion (11e) or a portion extending from the second curved extension portion (11e).

[0132] FIG. 10 illustrates an example in which a support portion (12f) of a second plate (12) is coupled to a support extension portion (11h) that is further extended from a second curved extension portion (11e) of a first plate (11). A C region (indicated by an arrow) indicating a support section may be a region supported between the first and second plates (11, 12). Preferably, the C region may be 10 mm or more. The support extension portion (11h) may extend from the second curved extension portion (11e) in the longitudinal direction of the first plate (11) or in the longitudinal direction of the vacuum space portion (15). The support extension portion (11h) may be formed parallel to the first portion (11a, FIG. 11).

[0133] The support portion (12f) can be understood as a contact portion that enables the first plate (11) and the second plate (12) to be joined. It is preferable that the support portion (12f) have a predetermined length, and it is preferable that the length be at least 10 mm in the longitudinal direction of the second plate (12). For example, in the present invention, the length of the support portion (12f) may be 10 mm. For example, in the support portion (12f), the first plate (11) and the second plate (12) may be sealed and joined to each other. As another example, in the support portion (12f), the first plate (11) and the second plate (12) may be joined to each other.

[0134] As described above, the first plate (11) can define at least a portion of the vacuum space (15). The first plate (11) can have a first portion (11a) provided at least in a flat manner.

[0135] Optionally, the first portion (11a) and the curved extension portions (11c, 11e) may be formed as a single member. For this purpose, the first plate (11) of the present invention may be formed by a drawing method.

[0136] The curved extensions (11c, 11e) can be understood to perform the function of a side plate together with the straight extensions (11f, 11g) and the support extensions (11h) that can be connected thereto. That is, unlike the conventional technology in which the side plates were connected to one side of the first and second plates (11, 12) as separate members, the present invention can be understood in that the side plates are connected to the first plate (11) as a single unit.

[0137] The second plate (12) may further include first and second bending portions (12g, 12h).

[0138] The first bending portion (12g) may be formed to bend in a direction intersecting the longitudinal direction of the second plate (12) at the point where the support portion (12f) ends. The first bending portion (12g) enables the first plate (11) and the second plate (12) to protect the portion where they are supported each other. The first bending portion (12g) may also function as a joint mediating portion that enables the second plate (12) to be joined to another configuration.

[0139] The first bend (12g) is advantageous in terms of reinforcing strength by distributing force in both directions at the end of the second plate (12).

[0140] A second bend (12h) may be further formed at the end of the first bend (12g). In addition to the first bend (12g), the second plate (12) may be formed with a second bend (12h) at the end of the first bend (12g), thereby providing strength reinforcement at the end.

[0141] Regarding the first plate (11) and the second plate (12), the first plate (11) and the second plate (12) can be directly connected. Here, the plates (11, 12) being directly connected may mean that a pair of facing plates (11, 12) are connected to each other by a method such as fusion welding. As a connecting method, for example, in order to maintain a vacuum, the first plate (11) and the second plate (12) can be welded to each other in the aforementioned C region, for example.

[0142] It is preferable that the first plate (11) and / or the second plate (12) be formed of a material with low thermal conductivity and low gas permeability. For example, the first plate (11) and the second plate (12) may be formed of a stainless steel material.

[0143] In particular, the first plate (11) may be of the STS 400 series or 300 series. For example, the first plate (11) may be of the material of STS 430 or STS 304.

[0144] The first plate (11) may be formed of a material having a thickness that is a predetermined multiple of that of the second plate (12). For example, in the present invention, the first plate (11) may be formed of a material having a thickness that is five times smaller than that of the second plate (12).

[0145] In the present invention, the first plate (11) may be 0.1 mm thick. The first plate (11) should be formed so as not to exceed 0.3 mm in thickness. The second plate (12) may be 0.5 mm thick. The second plate (12) should be formed so as not to exceed 1.5 mm in thickness.

[0146] Since the first plate (11) is thin, the amount of heat conduction through the first plate (11) may be small. The second plate (220) is provided with a thick thickness, so that the vacuum insulation module can be prevented from deforming itself by utilizing the large rigidity of the member itself.

[0147] The first plate (11) may be provided with a through hole (11j) in which a through part is installed.

[0148] A penetration part may be installed in the insulator (10) of the present invention. For example, a penetration part may be installed in the first plate. As described below, the penetration part may include a pipe (11i).

[0149] Referring to FIGS. 7 and 14b, an insulator (10) according to one or more embodiments may have a tube (11i). The tube (11i) may be an exhaust tube for exhausting fluid from the vacuum space (15). The tube (11i) may be a getter tube supporting a getter for gas absorption. The tube (11i) may also function as an exhaust port and a getter port.

[0150] Optionally, the thickness of the tube (11i) may be provided to be thicker than that of the first plate (11). The thickness of the tube (11i) may be provided to be thicker than that of the second plate (12). The thickness of the tube (11i) may be provided to be sufficient to withstand the compression required when sealing the tube (11i). The sealing may be performed by pinching off. The tube (11i) may have sufficient wall thickness. Since the tube (11i) is made of a flexible material, the wall thickness needs to be large. If the wall thickness is small, it may tear or cause vacuum destruction during sealing.

[0151] Optionally, the tube (11i) may be provided as a hollow tube (11i) of a circular or oval shape made of metal. The tube (11i) may be sealed after exhaustion or after insertion of a getter. The tube (11i) may be sealed by pressure welding. The tube (11i) may be sealed by deforming the tube (11i). The tube (11i) may be sealed by pinching off. The tube (11i) may be made of copper (Cu) to facilitate deformation.

[0152] The above pipe (11i) can be made of copper, which has a lower strength than stainless steel. By using copper, which is easily deformable, the pinch-off process can be smoothly performed and the sealing part can be reliably provided.

[0153] Optionally, the tube (11i) can be inserted into the first plate (11). At least a part of the tube (11i) can be inserted into the vacuum space (15). At least a part of the tube (11i) can be supported by the first plate (11). The tube (11i) can be provided at a periphery of the insulator (10). A through hole (11j) for inserting the tube (11i) can be formed in the first plate (11). A flange (11j-1) capable of coupling the tube (11i) can be processed at a periphery of the through hole (11j). The flange (11j-1) can be provided integrally with the first plate (11). The flange (11j-1) can be formed by a burr of the through hole (11j). The above through hole (11j) may have the same shape as the outer shape of the above pipe (11i).

[0154] Optionally, the flange (11j-1) may have a predetermined height portion extending in the height direction of the vacuum space (15). The curved portion may guide the tube (11i) to insert the tube into the through hole (11j). At least a portion of the height portion may provide a support portion for the tube (11i). At least a portion of the tube (11i) may be supported or coupled to the height portion. The tube (11i) may be guided by the flange (11j-1) and may extend in the height direction or the length direction of the vacuum space (15).

[0155] Briefly describing the process of forming a through hole (11j) in the first plate (11), a hole is formed in the first plate (11). Thereafter, the through hole (11j) is formed by pressing the hole using a pressing tool having a diameter larger than the hole.

[0156] Optionally, the insulation (10) of the present invention may include a support (19; Support, FIG. 3) that maintains the vacuum space (15).

[0157] The support may include a bar (20). The bar (20) may be formed in multiple pieces. The bar (20) may be supported or may be supported by the first or second plate (11, 12). The bar (20) may be supported by a support plate (22) described below. The bar (20) may be connected to the first and second plates (11, 12).

[0158] The support may include a support plate (22). The support plate (22) may include a portion extending in the longitudinal direction of the vacuum space (15) or may include a portion extending along the direction in which the plates (11, 12, 14) extend. The support plate (22) may be provided to support only one of the first plate (11) and the second plate (12), or the support plate (22) may be provided to support both the first plate (11) and the second plate (12). For example, the support plate (22) may include a first support plate (22a) supporting the first plate (11) and a second support plate (22b) supporting the second plate (12). The plurality of bars (20) described above can be arranged to be supported between the first support plate (22a) and the second support plate (22b) so as to maintain the vacuum space (15). For example, one surface of the support plate (22) may be provided to support a portion of the plates (11, 12, 14), and the other surface of the support plate (22) may be provided so as not to support another portion of the plates (11, 12, 14). In another example, one surface of the support plate (22) may be provided to support at least a portion of the plates (11, 12, 14), and the other surface of the support plate (22) may be provided to support another portion of the plates (11, 12, 14).

[0159] In the present invention, there is a risk of the first plate (11) being torn during the molding process of the first plate (11), the assembly process after molding, or thereafter. In particular, there is a risk of the first plate (11) being torn due to interference with various parts near one side or an edge of the insulator (10).

[0160] To prevent this, in the present invention, among the plurality of bars (20), the outermost bar (20) may include a portion that is rounded and supported by the first plate (11). For example, the edge portion of the outermost bar (20) may be formed to be rounded.

[0161] Due to this, the possibility of a tearing phenomenon occurring near the edge of the first plate (11) due to interference with the bar (20) arranged at the outermost edge can be reduced.

[0162] To prevent the above tearing phenomenon, in the present invention, the support plate (22) may include a rounded portion in the portion supported by the first plate (11). For example, the edge portion of the first support plate (22a) may be formed to be rounded.

[0163] Due to this, the possibility of a tearing phenomenon occurring near the edge of the first plate (11) due to interference with the support plate (22) can be reduced.

[0164] Optionally, the present invention may be provided with at least two insulating bodies (10) arranged in a direction intersecting each other, and connected so that portions of the side ends overlap each other. Two adjacent insulating bodies (10) may be provided so that their respective vacuum spaces (15) overlap each other in at least one of the thickness direction and the length direction of the vacuum space (15).

[0165] Two adjacent insulators (110, 210) can be arranged so that parts of the curved extensions (111c, 211c) face each other.

[0166] Due to this, a structure can be formed that can stably support the corners of the insulator (110, 210) and the side surfaces of the vacuum space (15) that are weak in strength.

[0167] Optionally, at least one of the first insulation body (110) and the second insulation body (210) may include a plurality of bars (120) arranged between the first plate (111) and the second plate (112) to maintain the vacuum space (15).

[0168] At least one of the plurality of bars (120) of the first insulation body (110) can be connected to support the curved extension (211c) of the first plate (211) of the second insulation body (210).

[0169] For example, among the plurality of bars (120) of the first insulation body (110), the bar (20) arranged at the outermost edge can be connected to support the curved extension (211c) of the first plate (211) of the second insulation body (210).

[0170] In FIG. 12 and FIG. 13, an example is shown in which a bar (120) arranged at the outermost edge of a first insulation body (110) is supported on the outer surface of a first curved extension (111c) of the first insulation body (110), and the first curved extension (111c) of the first insulation body (110) is supported on a first curved extension (211c) of a second insulation body (210).

[0171] Due to this, one side of the first insulation body (110) and the second insulation body (210) can be stably supported against rotational force during use and assembly, and can be an advantageous structure in terms of strength design.

[0172] Optionally, at least one of the first insulation body (110) and the second insulation body (210) may include a support plate (122a, 122b) disposed between the first plate (111) and the second plate (112) to maintain the vacuum space (15).

[0173] The support plate (122a, 122b) can be supported by at least one of the first plate (11) and the second plate (12) in the vacuum space (15).

[0174] The support plate (122a, 122b) can be placed on at least one of the outer surface of the first plate (111) and the inner surface of the second plate (112).

[0175] For example, the support plate (122a) of the first insulation body (110) can be connected to support the curved extension (211c) of the first plate (211) of the second insulation body (210).

[0176] For example, an example is shown in which a support plate (122a) of a first insulator (110) is supported on an outer surface of a first plate (211), and a first curved extension (111c) of a first insulator (110) is supported on a first curved extension (211c) of a second insulator (210) in the vicinity of where the support plate (122a) is supported on an outer surface of the first plate (211).

[0177] Due to this, one side of the first insulation body (110) and the second insulation body (210) can be stably supported against rotational force during use and assembly. One side of the first insulation body (110) and the second insulation body (210) can have an advantageous structure in terms of strength design.

[0178] The insulator (10) described above is not limited to the configuration and method of the embodiments described above, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

[0179] It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics thereof. Therefore, the above detailed description should not be construed in any way as limiting but rather as illustrative. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the scope of equivalents of the present invention are intended to be included within the scope of the present invention.

Claims

1. First plate; Second plate; and Including a vacuum space provided between the first plate and the second plate, An insulator having at least one curved extension portion on one side of the first plate.

2. In paragraph 15, The above curved extension is, A first curved extension provided on one side of the first plate; and A second curved extension portion connected to the first curved extension portion is provided, An insulation material in which the R value of any one of the first and second curved extensions is smaller than the R value in the corner direction at the first plate corner.

3. In paragraph 2, An insulator wherein the first plate further includes a straight extension portion provided between the first curved extension portion and the second curved extension portion.

4. In paragraph 2, An insulator having at least one inflection point between the first curved extension and the second curved extension.

5. In paragraph 15, The above first plate further includes a corner curved extension portion extending from one side of the curved extension portion and provided at a corner of the first plate, The above corner curved extension is formed to have an R value in the corner direction and in the direction intersecting the corner direction, The above corner curved extension is an insulation having an R value in the corner direction greater than an R value in the direction intersecting the corner direction.

6. In paragraph 5, The above corner curved extension is an insulation material in which the R value in the corner direction varies from one side to the other, and the minimum value of the R value in the corner direction is greater than the R value in the direction intersecting the corner direction.

7. In paragraph 15, The above second plate, An insulator having a contact portion that contacts a portion further extended from the above curved extension portion.

8. In paragraph 15, The first plate further includes a first portion defining at least a portion of the vacuum space and at least a portion of which is provided flat, An insulator in which the first part and the curved extension are formed as a single member.

9. In paragraph 15, Including a bar disposed between the first plate and the second plate to maintain the vacuum space, An insulating body having a plurality of bars, and among the plurality of bars, the bar arranged at the outermost end includes a rounded portion.

10. In paragraph 15, Including a support plate installed in the vacuum space to support the first plate, The above support plate is an insulator including a rounded portion near the edge of the first plate.

11. In paragraph 15, The R value of the above curved extension is an insulation material of 7 mm or more.

12. In paragraph 15, The above first plate is an insulator manufactured by drawing forming.

13. In paragraph 15, An insulator having at least two sides and connected so that parts of the side ends overlap each other, Two adjacent insulators are arranged so that a portion of each curved extension faces each other.

14. In paragraph 13, At least one of the two adjacent insulators, It includes a plurality of bars arranged between the first plate and the second plate to maintain the vacuum space, An insulation member, wherein at least one of the plurality of bars of the first insulation member is connected to support a curved extension of the first plate of the second insulation member.

15. In paragraph 1, An insulator in which the corner of the first plate is formed as a curved surface, and the R value of the curved extension is smaller than the R value in the corner direction at the corner of the first plate.

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