WO2022092968A1

WO2022092968A1 - Vacuum adiabatic body and refrigerator

Info

Publication number: WO2022092968A1
Application number: PCT/KR2021/015577
Authority: WO
Inventors: Wonyeong Jung; Deokhyun Youn; Duchan KI; Daewoong Kim
Original assignee: Lg Electronics Inc.
Priority date: 2020-11-02
Filing date: 2021-11-01
Publication date: 2022-05-05

Abstract

A vacuum adiabatic body of the present disclosure may include a first plate, a second plate, and a seal which seals the first plate and the second plate to provide a vacuum space. Optionally, the vacuum adiabatic body may include a support maintaining the vacuum space. The vacuum adiabatic body may include a heat transfer resistor for reducing the amount of heat transfer between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a component fastening portion which is connected to at least one of the first and second plates and to which the components are coupled. Optionally, the vacuum adiabatic body may a side plate extending in the height direction of the vacuum space. Accordingly, it is possible to provide a vacuum adiabatic body that can achieve the industrial purpose.

Description

VACUUM ADIABATIC BODY AND REFRIGERATOR

The present disclosure relates to a vacuum adiabatic body and a refrigerator.

Adiabatic performance can be improved by constructing an adiabatic wall with vacuum. At least a portion of the internal space is made of vacuum, and a device for forming to obtain an adiabatic effect may be referred to as a vacuum adiabatic body.

The applicant has developed a technology to obtain a vacuum adiabatic body that can be used in various devices and home appliances and disclosed a vacuum adiabatic body in Korean Application No. 10-2015-0109724. The vacuum adiabatic body of the cited document presents a peripheral adiabatic material placed on the periphery of the vacuum adiabatic body.

In the above document, any components, such as a latch, which are necessary to be installed in a refrigerator are not disclosed.

The present disclosure is to solve the above problem and proposes a mounting structure of components such as a latch necessary for the operation of a vacuum adiabatic body.

The present disclosure proposes a vacuum adiabatic body in which components are reliably mounted without reducing the adiabatic performance of the vacuum space.

The present disclosure proposes a vacuum adiabatic body with high impact resistance.

Optionally, it may be installed adjacent to any one side of the first and second plates. Optionally, a hinge that allows a rotation operation may be included. Optionally, in the vacuum space part, a portion of a first side on which the hinge is installed may extend further in a longitudinal direction of the vacuum space than a portion of a second side facing the first side. According to this configuration, it is possible to reinforce the adiabatic performance of the portion of the first side, which is inferior in adiabatic performance.

Optionally, a gasket may be installed on the first plate. Optionally, when providing a virtual line extending in the height direction of the vacuum space at the end portion of the gasket, In the vacuum space, a portion of the first side may extend beyond the virtual line. Accordingly, it is possible to reinforce the adiabatic performance at the portion of the first side.

Optionally, with respect to the edge of the side plate, the portion of the first side may extend beyond the virtual line. Optionally, with respect to an edge of the radiation resistance sheet, the portion of the first side may extend beyond the virtual line. Optionally, in the outermost bar, the portion of the first side may be placed beyond the two virtual lines. According to the above configuration, it is possible to reinforce the adiabatic performance at the portion of the first side.

Optionally, in the outermost bar, the two virtual lines L1 and L2 may not be placed in an area. According to this configuration, the strength of the vacuum adiabatic body can be reinforced.

Optionally, the edge of the side plate may be placed further from the center toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side.

Optionally, the heat transfer resistor may include a radiation resistance sheet that resists heat radiation between the first and second plates. Optionally, the edge of the radiation resistance sheet may be placed further from the center toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side.

Optionally, the outermost bar among the supporters may be placed further from the center toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side.

The heat insulation performance of the portion of the first side can be reinforced even by the above-described configuration. In addition, it is possible to reinforce the strength of the vacuum insulator at the portion of the first side.

Optionally, the side plate may have a first portion of the side plate forming the vacuum space. Optionally, the side plate may have a second portion of the side plate having a large extension portion in the longitudinal direction of the vacuum space. Accordingly, it is possible to have a long area capable of damping an impact. Optionally, it may have a radiation resistance sheet for reducing the amount of heat transfer.

Optionally, when the component defines two virtual lines extending in the height direction of the vacuum space in the installation area of the component, at least a portion of the first portion of the side plate may be placed in an inner area A of the two virtual lines. According to this, it is possible to prevent dew formation on the second plate while reducing adiabatic loss.

Optionally, the component may include a gasket.

Optionally, a pipe for exhausting the air of the vacuum space may be included. Optionally, all portions of the pipe may be placed in the inner area A of the two virtual lines. Accordingly, the adiabatic loss can be reduced. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, in the height direction (y-axis) of the vacuum space, it may have a first straight portion and a second straight portion below the first straight portion. Optionally, it may have a third straight portion between the first and second straight portions. Optionally, it may have a first curved portion between the first and third straight lines. Optionally, it may have a second curved portion between the third and second straight portions. Optionally, the third straight portion may be included in the first portion of the side plate. Accordingly, it is possible to reduce the adiabatic loss flowing along the wall of the vacuum space.

In a refrigerator according to another aspect of the present disclosure, optionally, the heat transfer resistor may include a radiation resistance sheet for reducing heat radiation between the first and second plates. Optionally, when defining two virtual lines extending in the height direction of the vacuum space in the installation area of the component, at least one of the radiation resistance sheet passes through the inner area of the two virtual lines and may further extend in the longitudinal direction of the vacuum space. According to the present disclosure, it is possible to reduce the adiabatic loss due to thermal radiation.

Optionally, the component may be a hanger for hanging and supporting another article. Optionally, it is possible to prevent the deformation of the radiation resistance sheet provided in the form of a sheet with respect to the load transmitted through the hook.

Optionally, the component may be connected to the first plate. Accordingly, it is possible to resist the impact generated in the storage space.

In the refrigerator according to another aspect of the present invention, at least one of the radiation resistance sheets may further extend in the longitudinal direction of the vacuum space portion past the expansion line of the inner surface of the body. According to this, it is possible to prevent the deformation of the radiation resistance sheet by preventing the impact along the shape of the body.

Optionally, the hinge may be installed adjacent to any one side of the first and second plates. Accordingly, the rotational operation of the vacuum adiabatic body is possible.

Optionally, the support may include a plurality of bars supporting the first and second plates. Accordingly, the height of the vacuum space can be maintained.

Optionally, the outermost bar among the supporters may move further toward the periphery of the vacuum adiabatic body at the portion of the first side on which the hinge is installed, as compared with at the portion of the second side facing the first side. Accordingly, it is possible to balance the heat transfer through the heat conduction path in the periphery of the vacuum space at both sides facing each other.

Optionally, the outermost bar among the supporters may be closer to the edge of the vacuum adiabatic body at the portion of the first side on which the hinge is installed than at the portion of the second side facing the first side.

Optionally, the outermost bar at the portion of the first side may be placed at a position farther from the center of the vacuum space in the edge direction from the second portion of the first plate, compared to the portion of the second side.

Optionally, the outermost bar at the portion of the first side may not overlap two virtual lines provided by the gasket installation area in the height direction of the vacuum space. Optionally, the outermost bar at the portion of the second side may overlap two virtual lines provided by the gasket.

Optionally, the breakage of the pipe may include at least one of deformation of a fastening portion between the pipe and the first plate and expansion breakage of a seal of the pipe.

Optionally, the third portion 203 of the second plate may be placed on an edge of at least one of the first side and the second side.

Optionally, it is possible to prevent the flange from interfering with at least one of the support and the heat transfer resistor. At least one of the support and the heat transfer resistor may be installed in plurality.

Optionally, at least one of the hinge shaft cover and the hinge case may be made of resin.

Optionally, at least one of the hinge shaft cover and the hinge case may be provided by being depressed in the depth direction (Z axis) of the vacuum space.

Optionally, as a member extending in the depth direction of the vacuum space, at least one of the inner panel, the support, the radiation resistance sheet, the second plate, the first plate, and the outer panel may be included.

Optionally, the member extending in the depth direction of the vacuum space may include at least one of an inner panel, a support, a radiation resistance sheet, a second plate, a first plate, and an outer panel.

Optionally, the load applied to at least one of the hinge shaft cover and the hinge case may be supported by the first vacuum adiabatic body.

According to this configuration, it is possible to balance the adiabatic loss through the additional adiabatic body of the first side of the vacuum adiabatic body on which the hinge is installed and the second side opposite to the first side. Through this, the adiabatic loss can be reduced.

Optionally, the thickness of the insulating wall of the additional adiabatic body at the portion of the first side may be thinner than that of the additional insulator at the portion of the second side. Accordingly, the effect of balancing the adiabatic loss may be greater.

According to the present disclosure, it is possible to increase the force to withstand the impact that is inevitably generated due to the use of the vacuum adiabatic body.

According to the present disclosure, a component such as a latch can be installed in an additional adiabatic body, and deterioration of the adiabatic performance occurring in the component can be prevented.

According to the present disclosure, the amount of impact generated by the latch and the like can be smoothly absorbed.

According to the present disclosure, the productivity of the vacuum adiabatic body is improved, and it is possible to provide a vacuum adiabatic body that can be industrially applied.

According to the present disclosure, it is possible to lengthen the heat path, prevent deformation of the radiation resistance sheet, and reduce adiabatic loss.

According to the present disclosure, it is possible to improve the impact resistance of the vacuum adiabatic body by reducing the propagation of the impact.

According to the present disclosure, it is possible to balance the adiabatic performance on two opposite sides of the vacuum adiabatic body and increase the strength of the vacuum adiabatic body.

According to the present disclosure, it is possible to balance the adiabatic loss through the periphery of the vacuum adiabatic body. Through this, the overall adiabatic loss of the vacuum adiabatic body can be reduced.

Fig. 1 is a perspective view illustrating a refrigerator according to an embodiment,

Fig. 2 is a view schematically illustrating a vacuum adiabatic body used for a body and a door of a refrigerator,

Fig. 3 is a view illustrating an embodiment of a support for holding a vacuum space,

Fig. 4 is a view for explaining an embodiment of a vacuum adiabatic body centering on a heat transfer resistor,

Fig. 5 is a graph for observing the process of exhausting the inside of the vacuum adiabatic body with time and pressure when the support is used,

Fig. 6 is a graph comparing vacuum pressure and gas conductivity,

Fig. 7 is a view illustrating various embodiments of a vacuum space,

Fig. 8 is a view for explaining an additional adiabatic body,

Fig. 9 is a view for explaining a heat transfer path between first and second plates having different temperatures,

Fig. 10 is a view for explaining a branch on a heat transfer path between first and second plates having different temperatures,

Fig. 11 is a view for explaining a method for manufacturing a vacuum adiabatic body,

Fig. 12 is a perspective view and a partial cross-sectional view illustrating a vacuum adiabatic body, in which Fig. 12 (a) is a vacuum adiabatic body with left side down and right side up, Fig. 12(b) is a partially cutaway perspective view taken along line 1-1' of Fig. 12(a). Fig. 12(c) is a cross-sectional view taken along line 1-1' of Fig. 12(a),

Fig. 13 is a partially cutaway perspective view and a cross-sectional view illustrating a cross section taken along line 2-2' of Fig. 12(a), (a) is a partially cutaway perspective view, and (b) is a cross-sectional view,

Figs. 14 to 16 are views related to a cross-section taken along line 3-3' of Fig. 12(a), in which Fig. 14 is a cross-sectional view taken along line 3-3' of Fig. 12(a), Fig. 15 is an enlarged cross-sectional view of part Z in Fig. 14, and Fig. 16 is a partially cutaway perspective view,

Figs. 17 and 18 are views illustrating an embodiment of the flange and are views for explaining an embodiment in which the expansion direction of the flange and the position of the flange are different,

Fig. 19 is a cross-sectional view of a periphery of the vacuum adiabatic body,

Fig. 20 is a cross-sectional view illustrating the vacuum adiabatic body in the portion where the pipe is placed,

Figs. 21 and 22 are views additionally illustrating the radiation resistance sheet in Fig. 19,

Fig. 23 is a view comparing a cross-sectional view of a portion of a second side of the vacuum adiabatic body with a cross-sectional view of a portion of the first side of the vacuum adiabatic body,

Fig. 24 is an exploded perspective view illustrating the vacuum adiabatic body,

Fig. 25 is a view comparing the peripheries of both sides of the vacuum adiabatic body,

Fig. 26 is a view for explaining a hinge shaft cover and a hinge case on which the hinge shaft is placed,

Fig. 27 is a view illustrating a state in which the hinge is installed in the hinge case,

Fig. 28 is a view comparing the peripheries of both sides of the vacuum adiabatic body according to another embodiment.

Hereinafter, specific embodiments will be described in detail with reference to the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein, and a person of ordinary skill in the art, who understands the spirit of the present invention, may readily implement other embodiments included within the scope of the same concept by adding, changing, deleting, and adding components; rather, it will be understood that they are also included within the scope of the present invention. The present invention may have many embodiments in which the idea is implemented, and in each embodiment, any portion may be replaced with a corresponding portion or a portion having a related action according to another embodiment. The present invention may be any one of the examples presented below or a combination of two or more examples.

The present disclosure relates to a vacuum adiabatic body including a first plate; a second plate; a vacuum space defined between the first and second plates; and a seal providing the vacuum space that is in a vacuum state. The vacuum space may be a space in a vacuum state provided in an internal space between the first plate and the second plate. The seal may seal the first plate and the second plate to provide the internal space provided in the vacuum state. The vacuum adiabatic body may optionally include a side plate connecting the first plate to the second plate. In the present disclosure, the expression "plate" may mean at least one of the first and second plates or the side plate. At least a portion of the first and second plates and the side plate may be integrally provided, or at least portions may be sealed to each other. Optionally, the vacuum adiabatic body may include a support that maintains the vacuum space. The vacuum adiabatic body may selectively include a thermal insulator that reduces an amount of heat transfer between a first space provided in vicinity of the first plate and a second space provided in vicinity of the second plate or reduces an amount of heat transfer between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a component coupling portion provided on at least a portion of the plate. Optionally, the vacuum adiabatic body may include another adiabatic body. Another adiabatic body may be provided to be connected to the vacuum adiabatic body. Another adiabatic body may be an adiabatic body having a degree of vacuum, which is equal to or different from a degree of vacuum of the vacuum adiabatic body. Another adiabatic body may be an adiabatic body that does not include a degree of vacuum less than that of the vacuum adiabatic body or a portion that is in a vacuum state therein. In this case, it may be advantageous to connect another object to another adiabatic body.

In the present disclosure, a direction along a wall defining the vacuum space may include a longitudinal direction of the vacuum space and a height direction of the vacuum space. The height direction of the vacuum space may be defined as any one direction among virtual lines connecting the first space to the second space to be described later while passing through the vacuum space. The longitudinal direction of the vacuum space may be defined as a direction perpendicular to the set height direction of the vacuum space. In the present disclosure, that an object A is connected to an object B means that at least a portion of the object A and at least a portion of the object B are directly connected to each other, or that at least a portion of the object A and at least a portion of the object B are connected to each other through an intermedium interposed between the objects A and B. The intermedium may be provided on at least one of the object A or the object B. The connection may include that the object A is connected to the intermedium, and the intermedium is connected to the object B. A portion of the intermedium may include a portion connected to either one of the object A and the object B. The other portion of the intermedium may include a portion connected to the other of the object A and the object B. As a modified example, the connection of the object A to the object B may include that the object A and the object B are integrally prepared in a shape connected in the above-described manner. In the present disclosure, an embodiment of the connection may be support, combine, or a seal, which will be described later. In the present disclosure, that the object A is supported by the object B means that the object A is restricted in movement by the object B in one or more of the +X, -X, +Y, -Y, +Z, and -Z axis directions. In the present invention, an embodiment of the support may be the combine or seal, which will be described later. In the present invention, that the object A is combined with the object B may define that the object A is restricted in movement by the object B in one or more of the X, Y, and Z-axis directions. In the present disclosure, an embodiment of the combining may be the sealing to be described later. In the present disclosure, that the object A is sealed to the object B may define a state in which movement of a fluid is not allowed at the portion at which the object A and the object B are connected. In the present disclosure, one or more objects, i.e., at least a portion of the object A and the object B, may be defined as including a portion of the object A, the whole of the object A, a portion of the object B, the whole of the object B, a portion of the object A and a portion of the object B, a portion of the object A and the whole of the object B, the whole of the object A and a portion of the object B, and the whole of the object A and the whole of the object B. In the present disclosure, that the plate A may be a wall defining the space A may be defined as that at least a portion of the plate A may be a wall defining at least a portion of the space A. That is, at least a portion of the plate A may be a wall forming the space A, or the plate A may be a wall forming at least a portion of the space A. In the present disclosure, a central portion of the object may be defined as a central portion among three divided portions when the object is divided into three sections based on the longitudinal direction of the object. A periphery of the object may be defined as a portion disposed at a left or right side of the central portion among the three divided portions. The periphery of the object may include a surface that is in contact with the central portion and a surface opposite thereto. The opposite side may be defined as a border or edge of the object. Examples of the object may include a vacuum adiabatic body, a plate, a heat transfer resistor, a support, a vacuum space, and various components to be introduced in the present disclosure. In the present disclosure, a degree of heat transfer resistance may indicate a degree to which an object resists heat transfer and may be defined as a value determined by a shape including a thickness of the object, a material of the object, and a processing method of the object. The degree of the heat transfer resistance may be defined as the sum of a degree of conduction resistance, a degree of radiation resistance, and a degree of convection resistance. The vacuum adiabatic body according to the present disclosure may include a heat transfer path defined between spaces having different temperatures, or a heat transfer path defined between plates having different temperatures. For example, the vacuum adiabatic body according to the present disclosure may include a heat transfer path through which cold is transferred from a low-temperature plate to a high-temperature plate. In the present disclosure, when a curved portion includes a first portion extending in a first direction and a second portion extending in a second direction different from the first direction, the curved portion may be defined as a portion that connects the first portion to the second portion (including 90 degrees).

In the present disclosure, the vacuum adiabatic body may optionally include a component coupling portion. The component coupling portion may be defined as a portion provided on the plate to which components are connected to each other. The component connected to the plate may be defined as a penetration portion disposed to pass through at least a portion of the plate and a surface component disposed to be connected to a surface of at least a portion of the plate. At least one of the penetration component or the surface component may be connected to the component coupling portion. The penetration component may be a component that defines a path through which a fluid (electricity, refrigerant, water, air, etc.) passes mainly. In the present disclosure, the fluid is defined as any kind of flowing material. The fluid includes moving solids, liquids, gases, and electricity. For example, the component may be a component that defines a path through which a refrigerant for heat exchange passes, such as a suction line heat exchanger (SLHX) or a refrigerant tube. The component may be an electric wire that supplies electricity to an apparatus. As another example, the component may be a component that defines a path through which air passes, such as a cold duct, a hot air duct, and an exhaust port. As another example, the component may be a path through which a fluid such as coolant, hot water, ice, and defrost water pass. The surface component may include at least one of a peripheral adiabatic body, a side panel, injected foam, a pre-prepared resin, a hinge, a latch, a basket, a drawer, a shelf, a light, a sensor, an evaporator, a front decor, a hotline, a heater, an exterior cover, or another adiabatic body.

As an example to which the vacuum adiabatic body is applied, the present disclosure may include an apparatus having the vacuum adiabatic body. Examples of the apparatus may include an appliance. Examples of the appliance may include home appliances including a refrigerator, a cooking appliance, a washing machine, a dishwasher, and an air conditioner, etc. As an example in which the vacuum adiabatic body is applied to the apparatus, the vacuum adiabatic body may constitute at least a portion of a body and a door of the apparatus. As an example of the door, the vacuum adiabatic body may constitute at least a portion of a general door and a door-in-door (DID) that is in direct contact with the body. Here, the door-in-door may mean a small door placed inside the general door. As another example to which the vacuum adiabatic body is applied, the present disclosure may include a wall having the vacuum adiabatic body. Examples of the wall may include a wall of a building, which includes a window.

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings. Each of the drawings accompanying the embodiment may be different from, exaggerated, or simply indicated from an actual article, and detailed components may be indicated with simplified features. The embodiment should not be interpreted as being limited only to the size, structure, and shape presented in the drawings. In the embodiments accompanying each of the drawings, unless the descriptions conflict with each other, some configurations in the drawings of one embodiment may be applied to some configurations of the drawings in another embodiment, and some structures in one embodiment may be applied to some structures in another embodiment. In the description of the drawings for the embodiment, the same reference numerals may be assigned to different drawings as reference numerals of specific components constituting the embodiment. Components having the same reference number may perform the same function. For example, the first plate constituting the vacuum adiabatic body has a portion corresponding to the first space throughout all embodiments and is indicated by reference number 10. The first plate may have the same number for all embodiments and may have a portion corresponding to the first space, but the shape of the first plate may be different in each embodiment. Not only the first plate, but also the side plate, the second plate, and another adiabatic body may be understood as well.

Fig. 1 is a perspective view of a refrigerator according to an embodiment, and FIG. 2 is a schematic view illustrating a vacuum adiabatic body used for a body and a door of the refrigerator. Referring to Fig. 1, the refrigerator 1 includes a main body 2 provided with a cavity 9 capable of storing storage goods and a door 3 provided to open and close the main body 2. The door 3 may be rotatably or slidably disposed to open or close the cavity 9. The cavity 9 may provide at least one of a refrigerating compartment and a freezing compartment. A cold source that supplies cold to the cavity may be provided. For example, the cold source may be an evaporator 7 that evaporates the refrigerant to take heat. The evaporator 7 may be connected to a compressor 4 that compresses the refrigerant evaporated to the cold source. The evaporator 7 may be connected to a condenser 5 that condenses the compressed refrigerant to the cold source. The evaporator 7 may be connected to an expander 6 that expands the refrigerant condensed in the cold source. A fan corresponding to the evaporator and the condenser may be provided to promote heat exchange. As another example, the cold source may be a heat absorption surface of a thermoelectric element. A heat absorption sink may be connected to the heat absorption surface of the thermoelectric element. A heat sink may be connected to a heat radiation surface of the thermoelectric element. A fan corresponding to the heat absorption surface and the heat generation surface may be provided to promote heat exchange.

Referring to FIG. 2,

plates

10, 15, and 20 may be walls defining the vacuum space. The plates may be walls that partition the vacuum space from an external space of the vacuum space. An example of the plates is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

The plate may be provided as one portion or may be provided to include at least two portions connected to each other. As a first example, the plate may include at least two portions connected to each other in a direction along a wall defining the vacuum space. Any one of the two portions may include a portion (e.g., a first portion) defining the vacuum space. The first portion may be a single portion or may include at least two portions that are sealed to each other. The other one of the two portions may include a portion (e.g., a second portion) extending from the first portion of the first plate in a direction away from the vacuum space or extending in an inner direction of the vacuum space. As a second example, the plate may include at least two layers connected to each other in a thickness direction of the plate. Any one of the two layers may include a layer (e.g., the first portion) defining the vacuum space. The other one of the two layers may include a portion (e.g., the second portion) provided in an external space (e.g., a first space and a second space) of the vacuum space. In this case, the second portion may be defined as an outer cover of the plate. The other one of the two layers may include a portion (e.g., the second portion) provided in the vacuum space. In this case, the second portion may be defined as an inner cover of the plate.

The plate may include a first plate 10 and a second plate 20. One surface of the first plate (the inner surface of the first plate) provides a wall defining the vacuum space, and the other surface (the outer surface of the first plate) of the first plate A wall defining the first space may be provided. The first space may be a space provided in the vicinity of the first plate, a space defined by the apparatus, or an internal space of the apparatus. In this case, the first plate may be referred to as an inner case. When the first plate and the additional member define the internal space, the first plate and the additional member may be referred to as an inner case. The inner case may include two or more layers. In this case, one of the plurality of layers may be referred to as an inner panel. One surface of the second plate (the inner surface of the second plate) provides a wall defining the vacuum space, and the other surface (the outer surface of the first plate) of the second plate A wall defining the second space may be provided. The second space may be a space provided in vicinity of the second plate, another space defined by the apparatus, or an external space of the apparatus. In this case, the second plate may be referred to as an outer case. When the second plate and the additional member define the external space, the second plate and the additional member may be referred to as an outer case. The outer case may include two or more layers. In this case, one of the plurality of layers may be referred to as an outer panel. The second space may be a space having a temperature higher than that of the first space or a space having a temperature lower than that of the first space. Optionally, the plate may include a side plate 15. In FIG. 2, the side plate may also perform a function of a conductive resistance sheet 60 to be described later, according to the disposition of the side plate. The side plate may include a portion extending in a height direction of a space defined between the first plate and the second plate or a portion extending in a height direction of the vacuum space. One surface of the side plate may provide a wall defining the vacuum space, and the other surface of the side plate may provide a wall defining an external space of the vacuum space. The external space of the vacuum space may be at least one of the first space or the second space or a space in which another adiabatic body to be described later is disposed. The side plate may be integrally provided by extending at least one of the first plate or the second plate or a separate component connected to at least one of the first plate or the second plate.

The plate may optionally include a curved portion. In the present disclosure, the plate including a curved portion may be referred to as a bent plate. The curved portion may include at least one of the first plate, the second plate, the side plate, between the first plate and the second plate, between the first plate and the side plate, or between the second plate and the side plate. The plate may include at least one of a first curved portion or a second curved portion, an example of which is as follows. First, the side plate may include the first curved portion. A portion of the first curved portion may include a portion connected to the first plate. Another portion of the first curved portion may include a portion connected to the second curved portion. In this case, a curvature radius of each of the first curved portion and the second curved portion may be large. The other portion of the first curved portion may be connected to an additional straight portion or an additional curved portion, which are provided between the first curved portion and the second curved portion. In this case, a curvature radius of each of the first curved portion and the second curved portion may be small. Second, the side plate may include the second curved portion. A portion of the second curved portion may include a portion connected to the second plate. The other portion of the second curved portion may include a portion connected to the first curved portion. In this case, a curvature radius of each of the first curved portion and the second curved portion may be large. The other portion of the second curved portion may be connected to an additional straight portion or an additional curved portion, which are provided between the first curved portion and the second curved portion. In this case, a curvature radius of each of the first curved portion and the second curved portion may be small. Here, the straight portion may be defined as a portion having a curvature radius greater than that of the curved portion. The straight portion may be understood as a portion having a perfect plane or a curvature radius greater than that of the curved portion. Third, the first plate may include the first curved portion. A portion of the first curved portion may include a portion connected to the side plate. A portion connected to the side plate may be provided at a position that is away from the second plate at a portion at which the first plate extends in the longitudinal direction of the vacuum space. Fourth, the second plate may include the second curved portion. A portion of the second curved portion may include a portion connected to the side plate. A portion connected to the side plate may be provided at a position that is away from the first plate at a portion at which the second plate extends in the longitudinal direction of the vacuum space. The present disclosure may include a combination of any one of the first and second examples described above and any one of the third and fourth examples described above.

In the present disclosure, the vacuum space 50 may be defined as a third space. The vacuum space may be a space in which a vacuum pressure is maintained. In the present disclosure, the expression that a vacuum degree of A is higher than that of B means that a vacuum pressure of A is lower than that of B.

In the present disclosure, the seal 61 may be a portion provided between the first plate and the second plate. Examples of sealing are as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. The sealing may include fusion welding for coupling the plurality of objects by melting at least a portion of the plurality of objects. For example, the first plate and the second plate may be welded by laser welding in a state in which a melting bond such as a filler metal is not interposed therebetween, a portion of the first and second plates and a portion of the component coupling portion may be welded by high-frequency brazing or the like, or a plurality of objects may be welded by a melting bond that generates heat. The sealing may include pressure welding for coupling the plurality of objects by a mechanical pressure applied to at least a portion of the plurality of objects. For example, as a component connected to the component coupling portion, an object made of a material having a degree of deformation resistance less than that of the plate may be pressure-welded by a method such as pinch-off.

A machine room 8 may be optionally provided outside the vacuum adiabatic body. The machine room may be defined as a space in which components connected to the cold source are accommodated. Optionally, the vacuum adiabatic body may include a port 40. The port may be provided at any one side of the vacuum adiabatic body to discharge air of the vacuum space 50. Optionally, the vacuum adiabatic body may include a conduit 64 passing through the vacuum space 50 to install components connected to the first space and the second space.

Fig. 3 is a view illustrating an example of a support that maintains the vacuum space. An example of the support is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

The supports 30, 31, 33, and 35 may be provided to support at least a portion of the plate and a heat transfer resistor to be described later, thereby reducing deformation of at least some of the vacuum space 50, the plate, and the heat transfer resistor to be described later due to external force. The external force may include at least one of a vacuum pressure or external force excluding the vacuum pressure. When the deformation occurs in a direction in which a height of the vacuum space is lower, the support may reduce an increase in at least one of radiant heat conduction, gas heat conduction, surface heat conduction, or support heat conduction, which will be described later. The support may be an object provided to maintain a gap between the first plate and the second plate or an object provided to support the heat transfer resistor. The support may have a degree of deformation resistance greater than that of the plate or be provided to a portion having weak degree of deformation resistance among portions constituting the vacuum adiabatic body, the apparatus having the vacuum adiabatic body, and the wall having the vacuum adiabatic body. According to an embodiment, a degree of deformation resistance represents a degree to which an object resists deformation due to external force applied to the object and is a value determined by a shape including a thickness of the object, a material of the object, a processing method of the object, and the like. Examples of the portions having the weak degree of deformation resistance include the vicinity of the curved portion defined by the plate, at least a portion of the curved portion, the vicinity of an opening defined in the body of the apparatus, which is provided by the plate, or at least a portion of the opening. The support may be disposed to surround at least a portion of the curved portion or the opening or may be provided to correspond to the shape of the curved portion or the opening. However, it is not excluded that the support is provided in other portions. The opening may be understood as a portion of the apparatus including the body and the door capable of opening or closing the opening defined in the body.

An example in which the support is provided to support the plate is as follows. First, at least a portion of the support may be provided in a space defined inside the plate. The plate may include a portion including a plurality of layers, and the support may be provided between the plurality of layers. Optionally, the support may be provided to be connected to at least a portion of the plurality of layers or be provided to support at least a portion of the plurality of layers. Second, at least a portion of the support may be provided to be connected to a surface defined on the outside of the plate. The support may be provided in the vacuum space or an external space of the vacuum space. For example, the plate may include a plurality of layers, and the support may be provided as any one of the plurality of layers. Optionally, the support may be provided to support the other one of the plurality of layers. For example, the plate may include a plurality of portions extending in the longitudinal direction, and the support may be provided as any one of the plurality of portions. Optionally, the support may be provided to support the other one of the plurality of parts. As further another example, the support may be provided in the vacuum space or the external space of the vacuum space as a separate component, which is distinguished from the plate. Optionally, the support may be provided to support at least a portion of a surface defined on the outside of the plate. Optionally, the support may be provided to support one surface of the first plate and one surface of the second plate, and one surface of the first plate and one surface of the second plate may be provided to face each other. Third, the support may be provided to be integrated with the plate. An example in which the support is provided to support the heat transfer resistor may be understood instead of the example in which the support is provided to support the plate. A duplicated description will be omitted.

An example of the support in which heat transfer through the support is designed to be reduced is as follows. First, at least a portion of the components disposed in the vicinity of the support may be provided so as not to be in contact with the support or provided in an empty space provided by the support. Examples of the components include a tube or component connected to the heat transfer resistor to be described later, an exhaust port, a getter port, a tube or component passing through the vacuum space, or a tube or component of which at least a portion is disposed in the vacuum space. Examples of the empty space may include an empty space provided in the support, an empty space provided between the plurality of supports, and an empty space provided between the support and a separate component that is distinguished from the support. Optionally, at least a portion of the component may be disposed in a through-hole defined in the support, be disposed between the plurality of bars, be disposed between the plurality of connection plates, or be disposed between the plurality of support plates. Optionally, at least a portion of the component may be disposed in a spaced space between the plurality bars, be disposed in a spaced space between the plurality of connection plates, or be disposed in a spaced space between the plurality of support plates. Second, the adiabatic body may be provided on at least a portion of the support or in the vicinity of at least a portion of the support. The adiabatic body may be provided to be in contact with the support or provided so as not to be in contact with the support. The adiabatic body may be provided at a portion in which the support and the plate are in contact with each other. The adiabatic body may be provided on at least a portion of one surface and the other surface of the support or be provided to cover at least a portion of one surface and the other surface of the support. The adiabatic body may be provided on at least a portion of a periphery of one surface and a periphery of the other surface of the support or be provided to cover at least a portion of a periphery of one surface and a periphery of the other surface of the support. The support may include a plurality of bars, and the adiabatic body may be disposed on an area from a point at which any one of the plurality of bars is disposed to a midpoint between the one bar and the surrounding bars. Third, when cold is transferred through the support, a heat source may be disposed at a position at which the heat adiabatic body described in the second example is disposed. When a temperature of the first space is lower than a temperature of the second space, the heat source may be disposed on the second plate or in the vicinity of the second plate. When heat is transmitted through the support, a cold source may be disposed at a position at which the heat adiabatic body described in the second example is disposed. When a temperature of the first space is higher than a temperature of the second space, the cold source may be disposed on the second plate or in the vicinity of the second plate. As fourth example, the support may include a portion having heat transfer resistance higher than a metal or a portion having heat transfer resistance higher than the plate. The support may include a portion having heat transfer resistance less than that of another adiabatic body. The support may include at least one of a non-metal material, PPS, and glass fiber (GF), low outgassing PC, PPS, or LCP. This is done for a reason in which high compressive strength, low outgassing, and a water absorption rate, low thermal conductivity, high compressive strength at a high temperature, and excellent workability are being capable of obtained.

Examples of the support may be the

bars

30 and 31, the connection plate 35, the support plate 35, a porous material 33, and a filler 33. In this embodiment, the support may include any one of the above examples, or an example in which at least two examples are combined. As first example, the support may include

bars

30 and 31. The bar may include a portion extending in a direction in which the first plate and the second plate are connected to each other to support a gap between the first plate and the second plate. The bar may include a portion extending in a height direction of the vacuum space and a portion extending in a direction that is substantially perpendicular to the direction in which the plate extends. The bar may be provided to support only one of the first plate and the second plate or may be provided both the first plate and the second plate. For example, one surface of the bar may be provided to support a portion of the plate, and the other surface of the bar may be provided so as not to be in contact with the other portion of the plate. As another example, one surface of the bar may be provided to support at least a portion of the plate, and the other surface of the bar may be provided to support the other portion of the plate. The support may include a bar having an empty space therein or a plurality of bars, and an empty space are provided between the plurality of bars. In addition, the support may include a bar, and the bar may be disposed to provide an empty space between the bar and a separate component that is distinguished from the bar. The support may selectively include a connection plate 35 including a portion connected to the bar or a portion connecting the plurality of bars to each other. The connection plate may include a portion extending in the longitudinal direction of the vacuum space or a portion extending in the direction in which the plate extends. An XZ-plane cross-sectional area of the connection plate may be greater than an XZ-plane cross-sectional area of the bar. The connection plate may be provided on at least one of one surface and the other surface of the bar or may be provided between one surface and the other surface of the bar. At least one of one surface and the other surface of the bar may be a surface on which the bar supports the plate. The shape of the connection plate is not limited. The support may include a connection plate having an empty space therein or a plurality of connection plates, and an empty space are provided between the plurality of connection plates. In addition, the support may include a connection plate, and the connection plate may be disposed to provide an empty space between the connection plate and a separate component that is distinguished from the connection plate. As a second example, the support may include a support plate 35. The support plate may include a portion extending in the longitudinal direction of the vacuum space or a portion extending in the direction in which the plate extends. The support plate may be provided to support only one of the first plate and the second plate or may be provided both the first plate and the second plate. For example, one surface of the support plate may be provided to support a portion of the plate, and the other surface of the support plate may be provided so as not to be in contact with the other portion of the plate. As another example, one surface of the support plate may be provided to support at least a portion of the plate, and the other surface of the support plate may be provided to support the other portion of the plate. A cross-sectional shape of the support plate is not limited. The support may include a support plate having an empty space therein or a plurality of support plates, and an empty space are provided between the plurality of support plates. In addition, the support may include a support plate, and the support plate may be disposed to provide an empty space between the support plate and a separate component that is distinguished from the support plate. As a third example, the support may include a porous material 33 or a filler 33. The inside of the vacuum space may be supported by the porous material or the filler. The inside of the vacuum space may be completely filled by the porous material or the filler. The support may include a plurality of porous materials or a plurality of fillers, and the plurality of porous materials or the plurality of fillers may be disposed to be in contact with each other. When an empty space is provided inside the porous material, provided between the plurality of porous materials, or provided between the porous material and a separate component that is distinguished from the porous material, the porous material may be understood as including any one of the aforementioned bar, connection plate, and support plate. When an empty space is provided inside the filler, provided between the plurality of fillers, or provided between the filler and a separate component that is distinguished from the filler, the filler may be understood as including any one of the aforementioned bar, connection plate, and support plate. The support according to the present disclosure may include any one of the above examples or an example in which two or more examples are combined.

Referring to Fig. 3a, as an embodiment, the support may include a bar 31 and a connection plate and support plate 35. The connection plate and the supporting plate may be designed separately. Referring to Fig. 3b, as an embodiment, the support may include a bar 31, a connection plate and support plate 35, and a porous material 33 filled in the vacuum space. The porous material 33 may have emissivity greater than that of stainless steel, which is a material of the plate, but since the vacuum space is filled, resistance efficiency of radiant heat transfer is high. The porous material may also function as a heat transfer resistor to be described later. More preferably, the porous material may perform a function of a radiation resistance sheet to be described later. Referring to Fig. 3c, as an embodiment, the support may include a porous material 33 or a filler 33. The porous material 33 and the filler may be provided in a compressed state to maintain a gap between the vacuum space. The film 34 may be provided in a state in which a hole is punched as, for example, a PE material. The porous material 33 or the filler may perform both a function of the heat transfer resistor and a function of the support, which will be described later. More preferably, the porous material may perform both a function of the radiation resistance sheet and a function of the support to be described later.

Fig. 4 is a view for explaining an example of the vacuum adiabatic body based on

heat transfer resistors

32, 33, 60, and 63 (e.g., thermal insulator and a heat transfer resistance body). The vacuum adiabatic body according to the present disclosure may optionally include a heat transfer resistor. An example of the heat transfer resistor is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

The

heat transfer resistors

32, 33, 60, and 63 may be objects that reduce an amount of heat transfer between the first space and the second space or objects that reduce an amount of heat transfer between the first plate and the second plate. The heat transfer resistor may be disposed on a heat transfer path defined between the first space and the second space or be disposed on a heat transfer path formed between the first plate and the second plate. The heat transfer resistor may include a portion extending in a direction along a wall defining the vacuum space or a portion extending in a direction in which the plate extends. Optionally, the heat transfer resistor may include a portion extending from the plate in a direction away from the vacuum space. The heat transfer resistor may be provided on at least a portion of the periphery of the first plate or the periphery of the second plate or be provided on at least a portion of an edge of the first plate or an edge of the second plate. The heat transfer resistor may be provided at a portion, in which the through-hole is defined, or provided as a tube connected to the through-hole. A separate tube or a separate component that is distinguished from the tube may be disposed inside the tube. The heat transfer resistor may include a portion having heat transfer resistance greater than that of the plate. In this case, adiabatic performance of the vacuum adiabatic body may be further improved. A shield 62 may be provided on the outside of the heat transfer resistor to be insulated. The inside of the heat transfer resistor may be insulated by the vacuum space. The shield may be provided as a porous material or a filler that is in contact with the inside of the heat transfer resistor. The shield may be an adiabatic structure that is exemplified by a separate gasket placed outside the inside of the heat transfer resistor. The heat transfer resistor may be a wall defining the third space.

An example in which the heat transfer resistor is connected to the plate may be understood as replacing the support with the heat transfer resistor in an example in which the support is provided to support the plate. A duplicate description will be omitted. The example in which the heat transfer resistor is connected to the support may be understood as replacing the plate with the support in the example in which the heat transfer resistor is connected to the plate. A duplicate description will be omitted. The example of reducing heat transfer via the heat transfer body may be applied as a substitute the example of reducing the heat transfer via the support, and thus, the same explanation will be omitted.

In the present disclosure, the heat transfer resistor may be one of a radiation resistance sheet 32, a porous material 33, a filler 33, and a conductive resistance sheet. In the present disclosure, the heat transfer resistor may include a combination of at least two of the radiation resistance sheet 32, the porous material 33, the filler 33, and the conductive resistance sheet. As a first example, the heat transfer resistor may include a radiation resistance sheet 32. The radiation resistance sheet may include a portion having heat transfer resistance greater than that of the plate, and the heat transfer resistance may be a degree of resistance to heat transfer by radiation. The support may perform a function of the radiation resistance sheet together. A conductive resistance sheet to be described later may perform the function of the radiation resistance sheet together. As a second example, the heat transfer resistor may include

conduction resistance sheets

60 and 63. The conductive resistance sheet may include a portion having heat transfer resistance greater than that of the plate, and the heat transfer resistance may be a degree of resistance to heat transfer by conduction. For example, the conductive resistance sheet may have a thickness less than that of at least a portion of the plate. As another example, the conductive resistance sheet may include one end and the other end, and a length of the conductive resistance sheet may be longer than a straight distance connecting one end of the conductive resistance sheet to the other end of the conductive resistance sheet. As another example, the conductive resistance sheet may include a material having resistance to heat transfer greater than that of the plate by conduction. As another example, the heat transfer resistor may include a portion having a curvature radius less than that of the plate.

Referring to Fig. 4a, for example, a conductive resistance sheet may be provided on a side plate connecting the first plate to the second plate. Referring to Fig. 4b, for example, a conductive resistance sheet 60 may be provided on at least a portion of the first plate and the second plate. A connection frame 70 may be further provided outside the conductive resistance sheet. The connection frame may be a portion from which the first plate or the second plate extends or a portion from which the side plate extends. Optionally, the connection frame 70 may include a portion at which a component for sealing the door and the body and a component disposed outside the vacuum space such as the exhaust port and the getter port, which are required for the exhaust process, are connected to each other. Referring to Fig. 4c, for example, a conductive resistance sheet may be provided on a side plate connecting the first plate to the second plate. The conductive resistance sheet may be installed in a through-hole passing through the vacuum space. The conduit 64 may be provided separately outside the conductive resistance sheet. The conductive resistance sheet may be provided in a pleated shape. Through this, the heat transfer path may be lengthened, and deformation due to a pressure difference may be prevented. A separate shielding member for insulating the conductive resistance sheet 63 may also be provided. The conductive resistance sheet may include a portion having a degree of deformation resistance less than that of at least one of the plate, the radiation resistance sheet, or the support. The radiation resistance sheet may include a portion having a degree of deformation resistance less than that of at least one of the plate or the support. The plate may include a portion having a degree of deformation resistance less than that of the support. The conductive resistance sheet may include a portion having conductive heat transfer resistance greater than that of at least one of the plate, the radiation resistance sheet, or the support. The radiation resistance sheet may include a portion having radiation heat transfer resistance greater than that of at least one of the plate, the conductive resistance sheet, or the support. The support may include a portion having heat transfer resistance greater than that of the plate. For example, at least one of the plate, the conductive resistance sheet, or the connection frame may include stainless steel material, the radiation resistance sheet may include aluminum, and the support may include a resin material.

Fig. 5 is a graph for observing a process of exhausting the inside of the vacuum adiabatic body with a time and pressure when the support is used. An example of a vacuum adiabatic body vacuum exhaust process vacuum is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

While the exhaust process is being performed, an outgassing process, which is a process in which a gas of the vacuum space is discharged, or a potential gas remaining in the components of the vacuum adiabatic body is discharged, may be performed. As an example of the outgassing process, the exhaust process may include at least one of heating or drying the vacuum adiabatic body, providing a vacuum pressure to the vacuum adiabatic body, or providing a getter to the vacuum adiabatic body. In this case, it is possible to promote the vaporization and exhaust of the potential gas remaining in the component provided in the vacuum space. The exhaust process may include a process of cooling the vacuum adiabatic body. The cooling process may be performed after the process of heating or drying the vacuum adiabatic body is performed. The process of heating or drying the vacuum adiabatic body process of providing the vacuum pressure to the vacuum adiabatic body may be performed together. The process of heating or drying the vacuum adiabatic body and the process of providing the getter to the vacuum adiabatic body may be performed together. After the process of heating or drying the vacuum adiabatic body is performed, the process of cooling the vacuum adiabatic body may be performed. The process of providing the vacuum pressure to the vacuum adiabatic body and the process of providing the getter to the vacuum adiabatic body may be performed so as not to overlap each other. For example, after the process of providing the vacuum pressure to the vacuum adiabatic body is performed, the process of providing the getter to the vacuum adiabatic body may be performed. When the vacuum pressure is provided to the vacuum adiabatic body, a pressure of the vacuum space may drop to a certain level and then no longer drop. Here, after stopping the process of providing the vacuum pressure to the vacuum adiabatic body, the getter may be input. As an example of stopping the process of providing the vacuum pressure to the vacuum adiabatic body, an operation of a vacuum pump connected to the vacuum space may be stopped. When inputting the getter, the process of heating or drying the vacuum adiabatic body may be performed together. Through this, the outgassing may be promoted. As another example, after the process of providing the getter to the vacuum adiabatic body is performed, the process of providing the vacuum pressure to the vacuum adiabatic body may be performed.

The time during which the vacuum adiabatic body vacuum exhaust process is performed may be referred to as a vacuum exhaust time. The vacuum exhaust time includes at least one of a time Δ1 during which the process of heating or drying the vacuum adiabatic body is performed, a time Δt2 during which the process of maintaining the getter in the vacuum adiabatic body is performed, of a time Δt3 during which the process of cooling the vacuum adiabatic body is performed. Examples of times Δt1, Δt2, and Δt3 are as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. In the vacuum adiabatic body vacuum exhaust process, the time Δt1 may be a time t1a or more and a time t1b or less. As a first example, the time t1a may be greater than or equal to about 0.2 hr and less than or equal to about 0.5 hr. The time t1b may be greater than or equal to about 1 hr and less than or equal to about 24.0 hr. The time Δt1 may be about 0.3 hr or more and about 12.0 hr or less. The time Δt1 may be about 0.4 hr or more and about 8.0 hr or less. The time Δt1 may be about 0.5 hr or more and about 4.0 hr or less. In this case, even if the Δt1 is kept as short as possible, the sufficient outgassing may be applied to the vacuum adiabatic body. For example, this case may include a case in which a component of the vacuum adiabatic body, which is exposed to the vacuum space, among the components of the vacuum adiabatic body, has an outgassing rate (%) less than that of any one of the component of the vacuum adiabatic body, which is exposed to the external space of the vacuum space. Specifically, the component exposed to the vacuum space may include a portion having a outgassing rate less than that of a thermoplastic polymer. More specifically, the support or the radiation resistance sheet may be disposed in the vacuum space, and the outgassing rate of the support may be less than that of the thermoplastic plastic. As another example, this case may include a case in which a component of the vacuum adiabatic body, which is exposed to the vacuum space, among the components of the vacuum adiabatic body, has a max operating temperature (℃) greater than that of any one of the component of the vacuum adiabatic body, which is exposed to the external space of the vacuum space. In this case, the vacuum adiabatic body may be heated to a higher temperature to increase in outgassing rate. For example, the component exposed to the vacuum space may include a portion having an operating temperature greater than that of the thermoplastic polymer. As a more specific example, the support or the radiation resistance sheet may be disposed in the vacuum space, and a use temperature of the support may be higher than that of the thermoplastic plastic. As another example, among the components of the vacuum adiabatic body, the component exposed to the vacuum space may contain more metallic portion than a non-metallic portion. That is, a mass of the metallic portion may be greater than a mass of the non-metallic portion, a volume of the metallic portion may be greater than a volume of the non-metallic portion, or an area of the metallic portion exposed to the vacuum space may be greater than an area exposed to the non-metallic portion of the vacuum space. When the components exposed to the vacuum space are provided in plurality, the sum of the volume of the metal material included in the first component and the volume of the metal material included in the second component may be greater than that of the volume of the non-metal material included in the first component and the volume of the non-metal material included in the second component. When the components exposed to the vacuum space are provided in plurality, the sum of the mass of the metal material included in the first component and the mass of the metal material included in the second component may be greater than that of the mass of the non-metal material included in the first component and the mass of the non-metal material included in the second component. When the components exposed to the vacuum space are provided in plurality, the sum of the area of the metal material, which is exposed to the vacuum space and included in the first component, and an area of the metal material, which is exposed to the vacuum space and included in the second component, may be greater than that of the area of the non-metal material, which is exposed to the vacuum space and included in the first component, and an area of the non-metal material, which is exposed to the vacuum space and included in the second component. As a second example, the time t1a may be greater than or equal to about 0.5 hr and less than or equal to about 1 hr. The time t1b may be greater than or equal to about 24.0 hr and less than or equal to about 65 hr. The time Δt1 may be about 1.0 hr or more and about 48.0 hr or less. The time Δt1 may be about 2 hr or more and about 24.0 hr or less. The time Δt1 may be about 3 hr or more and about 12.0 hr or less. In this case, it may be the vacuum adiabatic body that needs to maintain the Δt1 as long as possible. In this case, a case opposite to the examples described in the first example or a case in which the component exposed to the vacuum space is made of a thermoplastic material may be an example. A duplicated description will be omitted. In the vacuum adiabatic body vacuum exhaust process, the time Δt1 may be a time t1a or more and a time t1b or less. The time t2a may be greater than or equal to about 0.1 hr and less than or equal to about 0.3 hr. The time t2b may be greater than or equal to about 1 hr and less than or equal to about 5.0 hr. The time Δt2 may be about 0.2 hr or more and about 3.0 hr or less. The time Δt2 may be about 0.3 hr or more and about 2.0 hr or less. The time Δt2 may be about 0.5 hr or more and about 1.5 hr or less. In this case, even if the time Δt2 is kept as short as possible, the sufficient outgassing through the getter may be applied to the vacuum adiabatic body. In the vacuum adiabatic body vacuum exhaust process, the time Δt3 may be a time t3a or more and a time t3b or less. The time t2a may be greater than or equal to about 0.2 hr and less than or equal to about 0.8 hr. The time t2b may be greater than or equal to about 1 hr and less than or equal to about 65.0 hr. The tine Δt3 may be about 0.2 hr or more and about 48.0 hr or less. The time Δt3 may be about 0.3 hr or more and about 24.0 hr or less. The time Δt3 may be about 0.4 hr or more and about 12.0 hr or less. The time Δt3 may be about 0.5 hr or more and about 5.0 hr or less. After the heating or drying process is performed during the exhaust process, the cooling process may be performed. For example, when the heating or drying process is performed for a long time, the time Δt3 may be long. The vacuum adiabatic body according to the present disclosure may be manufactured so that the time Δt1 is greater than the time Δt2, the time Δt1 is less than or equal to the time Δt3, or the time Δt3 is greater than the time Δt2. The following relational expression is satisfied: Δt2<Δt1≤Δt3. The vacuum adiabatic body according to an embodiment may be manufactured so that the relational expression: Δt1+Δt2+Δt3 may be greater than or equal to about 0.3 hr and less than or equal to about 70 hr, be greater than or equal to about 1 hr and less than or equal to about 65 hr, or be greater than or equal to about 2 hr and less than or equal to about 24 hr. The relational expression: Δt1+Δt2+Δt3 may be manufactured to be greater than or equal to about 3 hr and less than or equal to about 6 hr.

An example of the vacuum pressure condition during the exhaust process is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. A minimum value of the vacuum pressure in the vacuum space during the exhaust process may be greater than about 1.8E-6 Torr. The minimum value of the vacuum pressure may be greater than about 1.8E-6 Torr and less than or equal to about 1.0E-4 Torr, be greater than about 0.5E-6 Torr and less than or equal to about 1.0E-4 Torr, or be greater than about 0.5E-6 Torr and less than or equal to about 0.5E-5 Torr. The minimum value of the vacuum pressure may be greater than about 0.5E-6 Torr and less than about 1.0E-5 Torr. As such, the limitation in which the minimum value of the vacuum pressure provided during the exhaust process is because, even if the pressure is reduced through the vacuum pump during the exhaust process, the decrease in vacuum pressure is slowed below a certain level. As an embodiment, after the exhaust process is performed, the vacuum pressure of the vacuum space may be maintained at a pressure greater than or equal to about 1.0E-5 Torr and less than or equal to about 5.0E-1 Torr. The maintained vacuum pressure may be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-1 Torr, be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-2 Torr, be greater than or equal to about 1.0E-4 Torr and less than or equal to about 1.0E-2 Torr, or be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-3 Torr. As a result of predicting the change in vacuum pressure with an accelerated experiment of two example products, one product may be provided so that the vacuum pressure is maintained below about 1.0E-04Torr even after about 16.3 years, and the other product may be provided so that the vacuum pressure is maintained below about 1.0E-04Torr even after about 17.8 years. As described above, the vacuum pressure of the vacuum adiabatic body may be used industrially only when it is maintained below a predetermined level even if there is a change over time.

Fig. 5a is a graph of an elapsing time and pressure in the exhaust process according to an example, and Fig. 5b is a view explaining results of a vacuum maintenance test in the acceleration experiment of the vacuum adiabatic body of the refrigerator having an internal volume of about 128 liters. Referring to Fig. 5b, it is seen that the vacuum pressure gradually increases according to the aging. For example, it is confirmed that the vacuum pressure is about 6.7E-04 Torr after about 4.7 years, about 1.7E-03 Torr after about 10 years, and about 1.0E-02 Torr after about 59 years. According to these experimental results, it is confirmed that the vacuum adiabatic body according to the embodiment is sufficiently industrially applicable.

Fig. 6 is a graph illustrating results obtained by comparing the vacuum pressure with gas conductivity. Referring to Fig. 6, gas conductivity with respect to the vacuum pressure depending on a size of the gap in the vacuum space 50 was represented as a graph of effective heat transfer coefficient (eK). The effective heat transfer coefficient (eK) was measured when the gap in the vacuum space 50 has three values of about 3 mm, about 4.5 mm, and about 9 mm. The gap in the vacuum space 50 is defined as follows. When the radiation resistance sheet 32 exists inside surface vacuum space 50, the gap is a distance between the radiation resistance sheet 32 and the plate adjacent thereto. When the radiation resistance sheet 32 does not exist inside surface vacuum space 50, the gap is a distance between the first and second plates. It was seen that, since the size of the gap is small at a point corresponding to a typical effective heat transfer coefficient of about 0.0196 W/mK, which is provided to an adiabatic material formed by foaming polyurethane, the vacuum pressure is about 5.0E-1 Torr even when the size of the gap is about 3 mm. Meanwhile, it was seen that the point at which reduction in adiabatic effect caused by the gas conduction heat is saturated even though the vacuum pressure decreases is a point at which the vacuum pressure is approximately 4.5E-3 Torr. The vacuum pressure of about 4.5E-3 Torr may be defined as the point at which the reduction in adiabatic effect caused by the gas conduction heat is saturated. Also, when the effective heat transfer coefficient is about 0.01 W/mK, the vacuum pressure is about 1.2E-2 Torr. An example of a range of the vacuum pressure in the vacuum space according to the gap is presented. The support may include at least one of a bar, a connection plate, or a support plate. In this case, when the gap of the vacuum space is greater than or equal to about 3 mm, the vacuum pressure may be greater than or equal to A and less than about 5E-1 Torr, or be greater than about 2.65E-1 Torr and less than about 5E-1 Torr. As another example, the support may include at least one of a bar, a connection plate, or a support plate. In this case, when the gap of the vacuum space is greater than or equal to about 4.5 mm, the vacuum pressure may be greater than or equal to A and less than about 3E-1 Torr, or be greater than about 1.2E-2 Torr and less than about 5E-1 Torr. As another example, the support may include at least one of a bar, a connection plate, or a support plate, and when the gap of the vacuum space is greater than or equal to about 9 mm, the vacuum pressure may be greater than or equal to A and less than about 1.0Х10^-1 Torr or be greater than about 4.5E-3 Torr and less than about 5E-1 Torr. Here, the A may be greater than or equal to about 1.0Х10^-6 Torr and less than or equal to about 1.0E-5 Torr. The A may be greater than or equal to about 1.0Х10^-5 Torr and less than or equal to about 1.0E-4 Torr. When the support includes a porous material or a filler, the vacuum pressure may be greater than or equal to about 4.7E-2 Torr and less than or equal to about 5E-1 Torr. In this case, it is understood that the size of the gap ranges from several micrometers to several hundreds of micrometers. When the support and the porous material are provided together in the vacuum space, a vacuum pressure may be created and used, which is middle between the vacuum pressure when only the support is used and the vacuum pressure when only the porous material is used.

Fig. 7 is a view illustrating various examples of the vacuum space. The present disclosure may be any one of the following examples or a combination of two or more examples.

Referring to Fig. 7, the vacuum adiabatic body according to the present disclosure may include a vacuum space. The vacuum space 50 may include a first vacuum space extending in a first direction (e.g., X-axis) and having a predetermined height. The vacuum space 50 may optionally include a second vacuum space (hereinafter, referred to as a vacuum space expansion portion) different from the first vacuum space in at least one of the height or the direction. The vacuum space expansion portion may be provided by allowing at least one of the first and second plates or the side plate to extend. In this case, the heat transfer resistance may increase by lengthening a heat conduction path along the plate. The vacuum space expansion portion in which the second plate extends may reinforce adiabatic performance of a front portion of the vacuum adiabatic body. The vacuum space expansion portion in which the second plate extends may reinforce adiabatic performance of a rear portion of the vacuum adiabatic body, and the vacuum space expansion portion in which the side plate extends may reinforce adiabatic performance of a side portion of the vacuum adiabatic body. Referring to Fig. 7a, the second plate may extend to provide the vacuum space expansion portion 51. The second plate may include a second portion 202 extending from a first portion 201 defining the vacuum space 50 and the vacuum space expansion portion 51. The second portion 202 of the second plate may branch a heat conduction path along the second plate to increase in heat transfer resistance. Referring to Fig. 7b, the side plate may extend to provide the vacuum space expansion portion. The side plate may include a second portion 152 extending from a first portion 151 defining the vacuum space 50 and the vacuum space extension portion 51. The second portion of the side plate may branch the heat conduction path along the side plate to improve the adiabatic performance. The first and

second portions

151 and 152 of the side plate may branch the heat conduction path to increase in heat transfer resistance. Referring to Fig. 7c, the first plate may extend to provide the vacuum space expansion portion. The first plate may include a second portion 102 extending from the first portion 101 defining the vacuum space 50 and the vacuum space expansion portion 51. The second portion of the first plate may branch the heat conduction path along the second plate to increase in heat transfer resistance. Referring to Fig. 7d, the vacuum space expansion portion 51 may include an X-direction expansion portion 51a and a Y-direction expansion portion 51b of the vacuum space. The vacuum space expansion portion 51 may extend in a plurality of directions of the vacuum space 50. Thus, the adiabatic performance may be reinforced in multiple directions and may increase by lengthening the heat conduction path in the plurality of directions to improve the heat transfer resistance. The vacuum space expansion portion extending in the plurality of directions may further improve the adiabatic performance by branching the heat conduction path. Referring to Fig. 7e, the side plate may provide the vacuum space extension portion extending in the plurality of directions. The vacuum space expansion portion may reinforce the adiabatic performance of the side portion of the vacuum adiabatic body. Referring to Fig. 7f, the first plate may provide the vacuum space extension portion extending in the plurality of directions. The vacuum space expansion portion may reinforce the adiabatic performance of the side portion of the vacuum adiabatic body.

Fig. 8 is a view for explaining another adiabatic body. The present disclosure may be any one of the following examples or a combination of two or more examples. Referring to Fig. 8, the vacuum adiabatic body according to the present disclosure may optionally include another adiabatic body 90. Another adiabatic body may have a degree of vacuum less than that of the vacuum adiabatic body and be an object that does not include a portion having a vacuum state therein. The vacuum adiabatic body and another vacuum adiabatic body may be directly connected to each other or connected to each other through an intermedium. In this case, the intermedium may have a degree of vacuum less than that of at least one of the vacuum adiabatic body or another adiabatic body or may be an object that does not include a portion having the vacuum state therein. When the vacuum adiabatic body includes a portion in which the height of the vacuum adiabatic body is high and a portion in which the height of the vacuum adiabatic body is low, another adiabatic body may be disposed at a portion having the low height of the vacuum adiabatic body. Another adiabatic body may include a portion connected to at least a portion of the first and second plates and the side plate. Another adiabatic body may be supported on the plate or coupled or sealed. A degree of sealing between another adiabatic body and the plate may be lower than a degree of sealing between the plates. Another adiabatic body may include a cured adiabatic body (e.g., PU foaming solution) that is cured after being injected, a pre-molded resin, a peripheral adiabatic body, and a side panel. At least a portion of the plate may be provided to be disposed inside another adiabatic body. Another adiabatic body may include an empty space. The plate may be provided to be accommodated in the empty space. At least a portion of the plate may be provided to cover at least a portion of another adiabatic body. Another adiabatic body may include a member covering an outer surface thereof. The member may be at least a portion of the plate. Another adiabatic body may be an intermedium for connecting, supporting, bonding, or sealing the vacuum adiabatic body to the component. Another adiabatic body may be an intermedium for connecting, supporting, bonding, or sealing the vacuum adiabatic body to another vacuum adiabatic body. Another adiabatic body may include a portion connected to a component coupling portion provided on at least a portion of the plate. Another adiabatic body may include a portion connected to a cover covering another adiabatic body. The cover may be disposed between the first plate and the first space, between the second plate and the second space, or between the side plate and a space other than the vacuum space 50. For example, the cover may include a portion on which the component is mounted. As another example, the cover may include a portion that defines an outer appearance of another adiabatic body. Referring to Figs. 8a to 8f, another adiabatic body may include a peripheral adiabatic body. The peripheral adiabatic body may be disposed on at least a portion of a periphery of the vacuum adiabatic body, a periphery of the first plate, a periphery of the second plate, and the side plate. The peripheral adiabatic body disposed on the periphery of the first plate or the periphery of the second plate may extend to a portion at which the side plate is disposed or may extend to the outside of the side plate. The peripheral adiabatic body disposed on the side plate may extend to a portion at which the first plate or may extend to the outside of the first plate or the second plate. Referring to Figs. 8g to 8h, another adiabatic body may include a central adiabatic body. The central adiabatic body may be disposed on at least a portion of a central portion of the vacuum adiabatic body, a central portion of the first plate, or a central portion of the second plate.

Referring to Fig. 8a, the peripheral adiabatic body 92 may be placed on the periphery of the first plate. The peripheral adiabatic body may be in contact with the first plate. The peripheral adiabatic body may be separated from the first plate or further extend from the first plate (indicated by dotted lines). The peripheral adiabatic body may improve the adiabatic performance of the periphery of the first plate. Referring to Fig. 8b, the peripheral adiabatic body may be placed on the periphery of the second plate. The peripheral adiabatic body may be in contact with the second plate. The peripheral adiabatic body may be separated from the second plate or further extend from the second plate (indicated by dotted lines). The periphery adiabatic body may improve the adiabatic performance of the periphery of the second plate. Referring to Fig. 8c, the peripheral adiabatic body may be disposed on the periphery of the side plate. The peripheral adiabatic body may be in contact with the side plate. The peripheral adiabatic body may be separated from the side plate or further extend from the side plate. The peripheral adiabatic body may improve the adiabatic performance of the periphery of the side plate Referring to Fig. 8d, the peripheral adiabatic body 92 may be disposed on the periphery of the first plate. The peripheral adiabatic body may be placed on the periphery of the first plate constituting the vacuum space expansion portion 51. The peripheral adiabatic body may be in contact with the first plate constituting the vacuum space extension portion. The peripheral adiabatic body may be separated from or further extend to the first plate constituting the vacuum space extension portion. The peripheral adiabatic body may improve the adiabatic performance of the periphery of the first plate constituting the vacuum space expansion portion. Referring to Figs. 8e and 8f, in the peripheral adiabatic body, the vacuum space extension portion may be disposed on a periphery of the second plate or the side plate. The same explanation as in Fig. 8d may be applied. Referring to Fig. 8g, the central adiabatic body 91 may be placed on a central portion of the first plate. The central adiabatic body may improve adiabatic performance of the central portion of the first plate. Referring to Fig. 8h, the central adiabatic body may be disposed on the central portion of the second plate. The central adiabatic body may improve adiabatic performance of the central portion of the second plate.

Fig. 9 is a view for explaining a heat transfer path between first and second plates having different temperatures. An example of the heat transfer path is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

The heat transfer path may pass through the extension portion at at least a portion of the first portion 101 of the first plate, the first portion 201 of the second plate, or the first portion 151 of the side plate. The first portion may include a portion defining the vacuum space. The

extension portions

102, 152, and 202 may include portions extending in a direction away from the first portion. The extension portion may include a side portion of the vacuum adiabatic body, a side portion of the plate having a higher temperature among the first and second plates, or a portion extending toward the side portion of the vacuum space 50. The extension portion may include a front portion of the vacuum adiabatic body, a front portion of the plate having a higher temperature among the first and second plates, or a front portion extending in a direction away from the front portion of the vacuum space 50. Through this, it is possible to reduce generation of dew on the front portion. The vacuum adiabatic body or the vacuum space 50 may include first and second surfaces having different temperatures from each other. The temperature of the first surface may be lower than that of the second surface. For example, the first surface may be the first plate, and the second surface may be the second plate. The extension portion may extend in a direction away from the second surface or include a portion extending toward the first surface. The extension portion may include a portion, which is in contact with the second surface, or a portion extending in a state of being in contact with the second surface. The extension portion may include a portion extending to be spaced apart from the two surfaces. The extension portion may include a portion having heat transfer resistance greater than that of at least a portion of the plate or the first surface. The extension portion may include a plurality of portions extending in different directions. For example, the extension portion may include a second portion 202 of the second plate and a third portion 203 of the second plate. The third portion may also be provided on the first plate or the side plate. Through this, it is possible to increase in heat transfer resistance by lengthening the heat transfer path. In the extension portion, the above-described heat transfer resistor may be disposed. Another adiabatic body may be disposed outside the extending portion. Through this, the extension portion may reduce generation of dew on the second surface. Referring to Fig. 9a, the second plate may include the extension portion extending to the periphery of the second plate. Here, the extension portion may further include a portion extending backward. Referring to Fig. 9b, the side plate may include the extension portion extending to a periphery of the side plate. Here, the extension portion may be provided to have a length that is less than or equal to that of the extension portion of the second plate. Here, the extension portion may further include a portion extending backward. Referring to Fig. 9c, the first plate may include the extension portion extending to the periphery of the first plate. Here, the extension portion may extend to a length that is less than or equal to that of the extension portion of the second plate. Here, the extension portion may further include a portion extending backward.

Fig. 10 is a view for explaining a branch portion on the heat transfer path between first and second plates having different temperatures. An example of the branch portion is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.

Optionally, the heat transfer path may pass through

portions

205, 153, and 104, each of which is branched from at least a portion of the first plate, the second plate, or the side plate. Here, the branched heat transfer path means a heat transfer path through which heat flows to be separated in a different direction from the heat transfer path through which heat flows along the plate. The branched portion may be disposed in a direction away from the vacuum space 50. The branched portion may be disposed in a direction toward the inside of the vacuum space 50. The branched portion may perform the same function as the extension portion described with reference to Fig. 9, and thus, a description of the same portion will be omitted. Referring to Fig. 10a, the second plate may include the branched portion 205. The branched portion may be provided in plurality, which are spaced apart from each other. The branched portion may include a third portion 203 of the second plate. Referring to Fig. 10b, the side plate may include the branched portion 153. The branched portion 153 may be branched from the second portion 152 of the side plate. The branched portion 153 may provide at least two. At least two branched portions 153 spaced apart from each other may be provided on the second portion 152 of the side plate. Referring to Fig. 10c, the first plate may include the branched portion 104. The branched portion may further extend from the second portion 102 of the first plate. The branched portion may extend toward the periphery. The branched portion 104 may be bent to further extend. A direction in which the branched portion extends in Figs. 10a, 10b, and 10c may be the same as at least one of the extension directions of the extension portion described in Fig. 10.

Fig. 11 is a view for explaining a process of manufacturing the vacuum adiabatic body.

Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component preparation process in which the first plate and the second plate are prepared in advance. Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component assembly process in which the first plate and the second plate are assembled. Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body vacuum exhaust process in which a gas in the space defined between the first plate and the second plate is discharged. Optionally, after the vacuum adiabatic body component preparation process is performed, the vacuum adiabatic body component assembly process or the vacuum adiabatic body exhaust process may be performed. Optionally, after the vacuum adiabatic body component assembly process is performed, the vacuum adiabatic body vacuum exhaust process may be performed. Optionally, the vacuum adiabatic body may be manufactured by the vacuum adiabatic body component sealing process (S3) in which the space between the first plate and the second plate is sealed. The vacuum adiabatic body component sealing process may be performed before the vacuum adiabatic body vacuum exhaust process (S4). The vacuum adiabatic body may be manufactured as an object with a specific purpose by an apparatus assembly process (S5) in which the vacuum adiabatic body is combined with the components constituting the apparatus. The apparatus assembly process may be performed after the vacuum adiabatic body vacuum exhaust process. Here, the components constituting the apparatus means components constituting the apparatus together with the vacuum adiabatic body.

The vacuum adiabatic body component preparation process (S1) is a process in which components constituting the vacuum adiabatic body are prepared or manufactured. Examples of the components constituting the vacuum adiabatic body may include various components such as a plate, a support, a heat transfer resistor, and a tube. The vacuum adiabatic body component assembly process (S2) is a process in which the prepared components are assembled. The vacuum adiabatic body component assembly process may include a process of disposing at least a portion of the support and the heat transfer resistor on at least a portion of the plate. For example, the vacuum adiabatic body component assembly process may include a process of disposing at least a portion of the support and the heat transfer resistor between the first plate and the second plate. Optionally, the vacuum adiabatic body component assembly process may include a process of disposing a penetration component on at least a portion of the plate. For example, the vacuum adiabatic body component assembly process may include a process of disposing the penetration component or a surface component between the first and second plates. After the penetration component may be disposed between the first plate and the second plate, the penetration component may be connected or sealed to the penetration component coupling portion.

An example of a vacuum adiabatic body vacuum exhaust process vacuum is as follows. The present disclosure may be any one of the, examples or a combination of two or more examples. The vacuum adiabatic body vacuum exhaust process may include at least one of a process of inputting the vacuum adiabatic body into an exhaust passage, a getter activation process, a process of checking vacuum leakage and a process of closing the exhaust port. The process of forming the coupling part may be performed in at least one of the vacuum adiabatic body component preparation process, the vacuum adiabatic body component assembly process, or the apparatus assembly process. Before the vacuum adiabatic body exhaust process is performed, a process of washing the components constituting the vacuum adiabatic body may be performed. Optionally, the washing process may include a process of applying ultrasonic waves to the components constituting the vacuum adiabatic body or a process of providing ethanol or a material containing ethanol to surfaces of the components constituting the vacuum adiabatic body. The ultrasonic wave may have an intensity between about 10 kHz and about 50 kHz. A content of ethanol in the material may be about 50% or more. For example, the content of ethanol in the material may range of about 50% to about 90%. As another example, the content of ethanol in the material may range of about 60% to about 80%. As another example, the content of ethanol in the material may be range of about 65% to about 75%. Optionally, after the washing process is performed, a process of drying the components constituting the vacuum adiabatic body may be performed. Optionally, after the washing process is performed, a process of heating the components constituting the vacuum adiabatic body may be performed.

The contents described in Figs. 1 to 11 may be applied to all or selectively applied to the embodiments described with reference to the drawings below.

As an embodiment, an example of a process associated with the support is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. The vacuum adiabatic body component preparation process may include a process of manufacturing the support. Before the vacuum adiabatic body vacuum exhaust process is performed, the process of manufacturing the support may be performed. For example, the support may be manufactured through the injection. Optionally, before the vacuum adiabatic body vacuum exhaust process is performed, the process of washing the support may be performed. Before the vacuum adiabatic body vacuum exhaust process is performed or while the vacuum adiabatic body vacuum exhaust process is performed, a process of storing the support under a predetermined condition may be performed. For example, before the vacuum adiabatic body vacuum exhaust process is performed, a primary storage process may be performed, and while the vacuum adiabatic body vacuum exhaust process is performed, a secondary storage process may be performed. For another example, during the vacuum adiabatic body vacuum exhaust process is performed, the storage process may be performed. Examples of the storage process are as follows. As a first example, the storage process may include a process of drying or heating the support. Thus, the outgassing form the support may be performed. The heating temperature may be greater than a predetermined reference temperature and less than a melting point of the support. The predetermined reference temperature may be a temperature between about 10 degrees and about 40 degrees. The heating temperature may be greater than about 80 degrees and less than about 280 degrees. The heating temperature may be greater than about 100 degrees and less than about 260 degrees. The heating temperature may be greater than about 120 degrees and less than about 240 degrees. The heating temperature may be greater than about 140 degrees and less than about 220 degrees. The heating temperature may be greater than about 160 degrees and less than about 200 degrees. The heating temperature may be greater than about 170 degrees and less than about 190 degrees. The heating temperature in the primary storage process may be less than the heating temperature in the secondary storage process. Optionally, the storage process may include a process of cooling the support. After the process of drying or heating the support is performed, the process of cooling the support may be performed. As a second example, the storage process may include a process of storing the support in a state of a temperature less than atmospheric pressure. Thus, the outgassing form the support may be performed. The storage pressure may be less than a pressure in a vacuum state in which the internal space between the first plate and the second plate is maintained. The storage pressure may be greater than 10E-10 torr and less than atmospheric pressure. The storage pressure may be greater than 10E-9 torr and less than atmospheric pressure. The storage pressure may be greater than 10E-8 torr and less than atmospheric pressure. The storage pressure may be greater than 10E-7 torr and less than atmospheric pressure. The storage pressure may be in a state of being greater than 10E-3 torr and less than atmospheric pressure. The storage pressure may be in a state of being greater than 10E-2 torr and less than atmospheric pressure. The storage pressure may be in a state of being greater than 0.5E-1 torr and less than atmospheric pressure. The storage pressure may be in a state of being greater than 0.5E-1 torr and less than 3E-1 torr. The storage pressure in the primary storage process may be higher than the storage pressure in the secondary storage process. Optionally, the storage process may include a storage process at the atmospheric pressure. After the process of storing the support in a state of the pressure less than the atmospheric pressure is performed, the process of storing the support in the state of the atmospheric pressure may be performed.

Optionally, before the vacuum adiabatic body vacuum exhaust process is performed, a process of coupling a plurality of portions of the support to each other may be performed. For example, the coupling process may include a process of coupling a bar of the support to a connection plate. As another example, the coupling process may include a process of coupling the bar of the support to the support plate.

The process associated with the support may optionally include a process related to the process of storing the support under the predetermined condition. An example of a process sequence related to the process in which the support is stored under the predetermined condition is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. After the process of drying or heating the support is performed, at least one of the process of storing the support at the temperature less than atmospheric pressure, the process of cooling the support, or the process of storing the support at the atmospheric pressure may be performed. After the process of storing the support at the pressure less than the atmospheric pressure is performed, at least one of the process of drying or heating the support, the process of cooling the support, or the process of storing the support at the atmospheric pressure may be performed. The process of drying or heating the support and the process of storing the support at the pressure less than the atmospheric pressure may be performed at the same time. The process of drying or heating the support and the process of storing the support at the atmospheric pressure may be performed at the same time. The process of storing the support under the condition less than atmospheric pressure and the process of cooling the support may be performed at the same time.

The process associated with the support may optionally include a process related to the process in which the support is coupled. An example of a process sequence related to the process in which the support is coupled is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. Before the coupling process is performed, a process of providing a separate component separated from the support in a space provided inside the support may be performed. For example, the component may include a heat transfer resistor. After the coupling process is performed, the support may be packaged or stored in a vacuum state. After the process of storing the support under the predetermined condition is performed, a process of coupling a plurality of portions of the support to each other may be performed.

In relation to the support, the process may optionally include a process related to the process of washing the support. An example of a process sequence related to the process of washing the support is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. After the process of manufacturing the support is performed, at least one of the process of washing the support, the process of storing the support under the predetermined condition, or the process of coupling the plurality of portions of the support to each other may be performed. After the process of washing the support is performed, at least one of the process of storing the support under the predetermined condition or the process of coupling the plurality of portions of the support to each other may be performed. Before the process of washing the support is performed, at least one of the process of storing the support under the predetermined condition or the process of coupling the plurality of portions of the support to each other may be performed.

The process associated with the support may optionally include a process related to the process of providing the support to plate. An example of a process sequence related to the process of providing the support to the plate is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. Before the vacuum adiabatic body exhaust process is performed, the support may be provided in a space between the first plate and the second plate. Before the vacuum adiabatic body exhaust process is performed, the support may be provided at the inside of the plate or the surface of the plate. Before the vacuum adiabatic body vacuum exhaust process is performed, the support may be coupled to the plate. After the component coupling portion is provided on a portion of the plate, the support may be provided in the space between the first plate and the second plate.

The contents described in Figs. 1 to 11 may be applied to all or selectively applied to the embodiments illustrated in the drawings below.

Fig. 12 is a perspective view and a partial cross-sectional view illustrating a vacuum adiabatic body, in which Fig. 12 (a) is a vacuum adiabatic body with left side down and right side up, Fig. 12(b) is a partially cutaway perspective view taken along line 1-1' of Fig. 12(a). Fig. 12(c) is a cross-sectional view taken along line 1-1' of Fig. 12(a). In this figure, the foam member is illustrated in a state of being removed.

Referring to Fig. 12, the vacuum adiabatic body may be used for a door that opens and closes the accommodation space. The hinge may be installed on the first side of the vacuum adiabatic body. The first side may be provided thinner than the second side in order to avoid interference when the door is opened and closed. The additional adiabatic body 90 may be provided on the first side thinner than the second side. The first side and the second side may face each other. The first side may point to the A side in Fig. 12(a), and the second side may point to the B side in Fig. 12(a). The thickness of the sides of the C side and the D side connecting the A side and the B side may be gradually changed. Here, the C side may be the upper third side of the vacuum adiabatic body, and the D side may be the lower fourth side of the vacuum adiabatic body.

The description of the sides may be similarly applicable to at least one of the first plate 10, the second plate 20, the side plate 15, the additional adiabatic body 90, and the gasket 80. For example, the first and second plates may be provided in a rectangular shape. For example, the side plate may have four sides in a rectangular shape.

In one or more embodiments, the pipe 40 may be provided where the vacuum space 50 and the additional adiabatic body 90 contact each other. The first end of the pipe 40 may be placed on the vacuum space 50, and the second end of the pipe 40 may be placed on the additional adiabatic body 90. The pipe 40 may protrude into the additional adiabatic body 90. The other end of the pipe 40 does not protrude into the accommodation space, so that waste of the accommodation space can be prevented. The foam adiabatic material is an adiabatic material that is solidified after the foaming liquid is injected into the periphery of the vacuum adiabatic body and expands. The foaming liquid may be exemplified by polyurethane. The foam adiabatic material may generate a high pressure during the expansion process. The foam adiabatic material may allow the foam adiabatic material to penetrate into a narrow space of the periphery. The pipe 40 may not cross the outer boundary of the additional adiabatic body 90. The pipe 40 may be embedded in the additional adiabatic body 90 and the vacuum space 50. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, the height of the pipe 40 may be secured at least twice the diameter of the pipe 40. After exhaustion through the pipe 40 is completed, the pipe can be pinched off. Compression deformation may propagate during the pinch-off. It is possible to prevent the propagating deformation from deforming and breaking the fastening portion between the pipe 40 and the plate. The pipe 40, among the four corners 211 of the vacuum adiabatic body, may be placed on a corner 211 opposite to the upper hinge. The pipe 40 may be placed on the vacuum adiabatic body to prevent damage to the pipe 40. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, the foaming liquid may be injected downward from the top of the vacuum adiabatic body in order to use gravity. The vacuum adiabatic body may first be filled with a foaming liquid in the lower portion. When the foaming liquid is filled, a phenomenon in which the foaming liquid is concentrated downward in the direction of gravity may occur. The expansion force of the foaming liquid is greater in the lower part than in the upper part of the vacuum adiabatic body. The foaming liquid placed on the lower part of the vacuum adiabatic body has a large expansive force, firstly, due to the pressure of the foaming liquid on the upper portion, and secondly, due to the limitation of the foaming space due to the foaming liquid solidified in the upper portion. In order to reduce the influence of the expansion force of the foaming liquid on the pipe 40, the pipe 40 may be provided above the vacuum adiabatic body. In order to minimize the influence of the expansion force of the foaming liquid on the pipe 40, the pipe 40 may be provided in the first portion 101 of the first plate on the upper side of the vacuum adiabatic body. When ductile copper is used as the material of the pipe 40, the pipe 40 may be directly deformed. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, in order to reduce the influence of the local difference in the expansion force of the foaming liquid on the pipe 40, the pipe 40 may be provided above the vacuum adiabatic body. The pipe 40 may be provided in the first portion 101 of the first plate on the upper side of the vacuum adiabatic body. The pipe 40 may be spaced apart from the side plate 15 of the vacuum adiabatic body by a predetermined distance W1. Since the foaming liquid solidifies multiple times, the expansion force of the foaming liquid may be locally different. For example, the expansion force of the foam liquid on the right side of the pipe 40 may be greater than the expansion force of the foam liquid on the left side of the pipe 40. In this case, the pipe 40 may be damaged. The breakage of the pipe 40 may include at least one of deformation of a fastening portion between the pipe 40 and the first plate 10 and expansion breakage of a seal of the pipe 40. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, the insulation thickness of the portion on which the hinge is placed in the vacuum adiabatic body may be thinner than the opposite portion. Since the pipe 40 is placed on the opposite portion of the hinge of the vacuum adiabatic body, it is possible to reduce adiabatic loss. In the vacuum adiabatic body, the opposite portion of the hinge may refer to a portion opposite to the portion on which the hinge is installed. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, the pipe 40 may have a long portion protruding into the additional adiabatic body 90. The pipe 40 may provide a heat conduction path of heat passing therethrough. The pipe 40 provides a place in which the pipe rests by excluding the foaming liquid that makes up the additional adiabatic body 90. The pipe 40 may cause adiabatic loss of the vacuum adiabatic body. In order to reduce the adiabatic loss due to the pipe 40, the pipe 40 may be placed on the opposite side of the hinge of the vacuum adiabatic body having a relatively thick additional adiabatic body 90. The pipe 40 may be provided in the first portion 101 of the first plate on the portion opposite the hinge of the vacuum adiabatic body. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Fig. 13 is a partially cutaway perspective view and a cross-sectional view illustrating a cross section taken along line 2-2' of Fig. 12(a), (a) is a partially cutaway perspective view, and (b) is a cross-sectional view.

Referring to Fig. 13, the foaming liquid is injected through the foaming liquid injection port 470. The foaming liquid injection port 470 may not be vertically aligned with the pipe 40. The pipe 40 can avoid the pass path of the foaming liquid. The foaming liquid injected through the foaming liquid injection port may go down to the lower end of the vacuum adiabatic body without being caught in the pipe 40. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Preferably, the distance W1 between the pipe 40 and the side plate 15 is smaller than the distance W2 between the pipe 40 and the upper cover 112. The upper cover 112 may be placed on the edge of the third side. A lower cover 113 may be placed on a fourth side of the vacuum adiabatic body facing the upper cover 112. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Figs. 14 to 16 are views related to a cross-section taken along line 3-3' of Fig. 12(a), in which Fig. 14 is a cross-sectional view taken along line 3-3' of Fig. 12(a), Fig. 15 is an enlarged cross-sectional view of part Z in Fig. 14, and Fig. 16 is a partially cutaway perspective view.

Referring to Figs. 14 to 16, the thickness of the vacuum adiabatic body at the second side may be thicker than the thickness at the first side. The thickness of the additional adiabatic body 90 at the second side may be thicker than the thickness at the first side. Here, the thickness of the vacuum adiabatic body may mean a height between the first and

second plates

10 and 20. The height of the vacuum space 50 may be the same at the first side and the second side.

Optionally, in the second side, the distance W3 from the third portion 203 of the second plate to the pipe 40 may be smaller than the distance W2 between the pipe 40 and the upper cover 112. Accordingly, it is possible to further reduce the adiabatic loss leaking upward of the pipe 40. In the second side, a virtual expansion line (X direction) of the second portion 152 of the side plate may pass through the pipe 40. Accordingly, it is possible to reduce the adiabatic loss leaking from the pipe 40 toward the second side of the vacuum adiabatic body. The third portion 203 of the second plate may be placed on an edge of at least one of the first side and the second side. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

Optionally, a flange 42 may be provided on the first plate 10 for fastening the pipe 40 and the first plate 10. The flange 42 may extend inward of the vacuum space 50. In this case, it is easy to insert the pipe 40 into the flange 42. In this case, even in a state in which the first plate 10 and the second plate 20 are fastened, the pipe 40 can be easily fastened to the flange 42. The flange 42 may extend outwardly of the vacuum space 50. Interference between the flange 42 and components placed inside the vacuum space 50 can be prevented. The flange 42 may overlap the first space in the first portion 101 of the first plate. In this case, the adiabatic loss of the additional adiabatic body 90 can be reduced. Here, the overlapping may mean being aligned in the height direction of the vacuum space 50. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

An embodiment according to the location and the shape of the flange 42 is presented.

Figs. 17 and 18 are views illustrating an embodiment of the flange and are views for explaining an embodiment in which the expansion direction of the flange and the position of the flange are different.

Fig. 17(a) and Fig. 17(b) illustrate a case in which the flange 42 extends outwardly of the vacuum space 50. Fig. 18(a) and Fig. 18(b) illustrate a case in which the flange 42 extends inward of the vacuum space 50. Fig. 17(a) and Fig. 18(a) illustrate a case in which the flange 42 overlaps the additional adiabatic body 90 in the first portion 101 of the first plate. Fig. 17(b) and Fig. 18(b) illustrate a case in which the flange 42 overlaps the first space in the first portion 101 of the first plate.

According to the first embodiment of Fig. 17(a), the accommodation space can be secured widely. It is possible to prevent the flange 42 from interfering with at least one of the support 30 and the heat transfer resistor. According to the present embodiment, at least one of the support 30 and the heat transfer resistor may be installed in various ways. According to the present embodiment, at least one of the support 30 and the heat transfer resistor may be installed in plurality.

According to the second embodiment of Fig. 17(b), it is possible to reduce the adiabatic loss of the additional adiabatic body 90 caused by the pipe 40. It is possible to prevent the flange 42 from interfering with at least one of the support 30 and the heat transfer resistor. According to the present embodiment, at least one of the support 30 and the heat transfer resistor may be installed in various ways. According to the present embodiment, at least one of the support 30 and the heat transfer resistor may be installed in plurality. In the present embodiment, a through-hole 170 through which the pipe passes may be provided in the inner panel 111. The diameter of the through-hole 170 of the inner panel 111 may be larger than the outer surface of the flange 42. The flange 42 and the through-hole may be spaced apart from each other. When the pipe 40 is circular, the outer diameter of the pipe 40 may be smaller than the inner diameter of the through-hole 170. The through-hole of the inner panel 111 may be provided to be inclined or rounded to correspond to the shape of the flange 42. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

According to the third embodiment of Fig. 18(a), it is possible to secure the accommodation space widely. The pipe 40 can be conveniently inserted along the flange 42.

According to the fourth embodiment of Fig. 18(b), it is possible to reduce the adiabatic loss of the additional adiabatic body 90 caused by the pipe 40. The pipe 40 can be conveniently inserted along the flange 42. In the present embodiment, the pipe 40 may penetrate the first portion 101 of the first plate as a whole. In the present embodiment, the pipe 40 may pass through the inner panel 111. A through-hole 170 may be provided in the inner panel 111. Examples of the aforementioned pipe may be ports such as exhaustion ports and getter ports.

In the present disclosure, the vacuum adiabatic body may include a first plate 10 having a first temperature, a second plate 20 having a second temperature, and a seal which seals the first plate and the second plate to provide the vacuum space 50. Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component preparation step in which the first plate and the second plate are prepared in advance, a vacuum adiabatic body component assembly step in which the prepared first plate and the second plate are assembled, and a vacuum adiabatic body vacuum exhaustion step in which the gas in the space formed between the first plate and the second plate is evacuated after the component assembly step. Optionally, before the vacuum adiabatic body vacuum exhaustion step, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component sealing step in which the space between the first plate and the second plate is sealed. Optionally, after the vacuum adiabatic body vacuum exhaustion step, a device assembly step in which the vacuum adiabatic body and the components constituting the device are coupled may be performed.

Optionally, the vacuum adiabatic body may include a component connected to the additional adiabatic body 90. Examples related to the above components are as follows. The present disclosure may be any one of the following examples or an example in which two or more examples are combined. The component may include a latch 81. The component may include a first portion and a second portion provided in a state of being connected to the first portion. The first portion may include a portion having a lower heat transfer resistance than the second portion. The first portion may be provided to be movable. The component may be provided in the central portion of the additional adiabatic body. The component may be accommodated in a groove formed in the additional adiabatic body. A length of the groove in the Y-axis direction may be greater than 1/2 of a height of the additional adiabatic body in the Y-axis direction.

Optionally, a second additional adiabatic body provided separately from the additional adiabatic body 90 may be included. Examples of the second additional adiabatic body are as follows. The present disclosure may be any one of the following examples, or an example in which two or more examples are combined. The second additional adiabatic body may have a smaller height than the additional adiabatic body in the Y-axis direction. The second additional adiabatic body may have a smaller volume than the additional adiabatic body. The second additional adiabatic body may include a portion to which a separate component distinct from the component 81 is connected. The separate component may include a hinge. The separate component may be provided so as not to overlap a portion of the side plate in the height direction of the vacuum space. The portion may include a portion extending in the height direction of the vacuum space. The portion may be provided to be located inside the additional adiabatic body. The portion may be provided to be spaced apart from the component by a predetermined distance in the longitudinal direction of the vacuum space. The predetermined distance may be greater than the height of the vacuum space. The portion may be provided to overlap the component in the longitudinal direction of the vacuum space. The component may be provided so as not to overlap a portion of the support 30 in the height direction (Y-direction) of the vacuum space. The portion may include a bar 31. The portion may include the bar and an additional bar adjacent to the bar and spaced apart from the bar by a predetermined distance. The portion may be provided to be spaced apart from the component by a predetermined distance in the longitudinal direction (X-direction) of the vacuum space. The predetermined distance may be greater than the height of the vacuum space. The portion may be provided to overlap the component in the longitudinal direction of the vacuum space.

Fig. 19 is a cross-sectional view illustrating a periphery of the vacuum adiabatic body.

Referring to Fig. 19, an area in which the gasket 80 is placed may be represented by two virtual lines L1 and L2 in the height direction of the vacuum space 50. By the virtual line, the inner area A of the two virtual lines, the outer area B of the first virtual line L1 placed outside among the two virtual lines, and the inner area C of the second virtual line L2 lying on the inside of the two virtual lines may be defined.

The third straight line portion 223 may be placed in the inner area A of the two virtual lines. At least a portion of the third straight line portion 223 may be placed in the inner area A of the two virtual lines. All of the third straight line portions 223 may be placed in the inner area A of the two virtual lines.

The third straight line portion 223 may be placed on an outer area B of the first virtual line L1. In this case, the door latch 81 and the third straight line portion 223 are aligned in the height direction in the vacuum state. The door latch 81 and the third straight line portion 223 may be adjacent to or in contact with each other in the height direction in the vacuum state. A high-capacity heat flow path may be generated leading to the door latch 81 and the third straight line portion 223. In this case, the adiabatic loss may increase.

The third straight line portion 223 may be placed in the inner area C of the second virtual line L2. In this case, there may be no portion or only a small portion of the first portion 101 of the first plate in contact with the additional adiabatic material. The first portion 101 of the first plate is a thin portion and may serve as a conductive resistance sheet. As the cold air in the low temperature space, a heat flow path having a large capacity, which passes through the first portion 101 of the first plate and the third straight portion 223 may flow. This is because the adiabatic effect using the heat flow path passing through the thin first plate 10 is reduced. In this case, the adiabatic loss may increase. When a large amount of cold air in the low-temperature space is transferred to the second plate 20, dew condensation may occur on the second plate 20.

In this background, the third straight line portion 223 may be placed in the inner area A of the two virtual lines. At least a portion of the first portion 101 of the first plate may be placed in the inner area of the two virtual lines. According to this configuration, it is possible to obtain two effect referring to as a state in which a adiabatic effect using the first plate 10 can be obtained(internal adiabatic effect) and a state in which the capacity of the heat path is decreased by the vertical alignment of the gasket 80 and the third straight line portion 223(external adiabatic effect). The inner adiabatic effect may refer to insulation against the leakage of cold air inside the low-temperature space to the second plate 20. The outer adiabatic effect may refer to insulation against the leakage of cold air from the additional adiabatic body 90 including the gasket 80 to the second plate 20.

Fig. 20 is a cross-sectional view illustrating the vacuum adiabatic body in the portion where the pipe is placed.

Referring to Fig. 20, the pipe 40 may overlap the gasket 80 in the height direction of the vacuum space 50. At least a portion of the pipe 40 may overlap the gasket 80 in the height direction of the vacuum space 50. All parts of the pipe 40 may overlap the gasket 80 in the height direction of the vacuum space 50. The pipe 40 may be insulated by a foam member. Examples of the pipe described above may be ports such as exhaustion ports and getter ports.

The pipe 40 may extend in a height direction of the vacuum space 50. The upper end of the pipe 40 may be vertically adjacent to the third portion 103 of the first plate. The adiabatic loss from the upper end of the pipe 40 to the third portion 103 of the first plate may increase. The gasket 80 may additionally insulate a high-capacity heat path connecting the pipe 40 and the third portion 103 of the first plate. Examples of the pipe described above may be ports such as exhaustion ports and getter ports.

Figs. 21 and 22 are views additionally illustrating a heat transfer resistor in Fig. 19. The heat transfer resistor may be a radiation resistance sheet.

Referring to Fig. 21, the vacuum adiabatic body of the embodiment includes the heat transfer resistor 32. The heat transfer resistor 32 may be widely provided in the longitudinal direction of the vacuum space 50. Through this, it is possible to resist the thermal radiation of the vacuum space 50. As the width of the heat transfer resistor 32 increase, the radiation resistance efficiency increases, thereby improving the thermal insulation performance of the vacuum adiabatic body. The heat transfer resistor 32 may be affected by the hanger 130. When the load is transferred to the heat transfer resistor 32, the heat transfer resistor 32 may be deformed. When the heat transfer resistor 32 is deformed, the heat transfer resistor 32 may come in contact with another member inside the vacuum space 50 to cause heat transfer. Heat transfer through the heat transfer resistor 32 may cause the adiabatic loss of the vacuum adiabatic body. An example of the heat transfer resistor described with reference to Fig. 21 may be a radiation resistance sheet.

The heat transfer resistor 32 may be deformed for the following reasons. The deformation may be affected by the fact that firstly, the heat transfer resistor 32 is a thin sheet, secondly, several spaced points of the heat transfer resistor 32 are supported by the support 30, and thirdly, the end portion of the heat transfer resistor 32 is a free end. Among the loads, a dynamic load may have a great adverse effect on the heat transfer resistor 32.

It is possible to prevent deformation of the heat transfer resistor 32 and improve the radiation resistance performance. The heat transfer resistor 32 may further extend in the longitudinal direction of the vacuum space 50 past the gap between the hooks. The support 30 may support the edge of the heat transfer resistor 32. At least one of the heat transfer resistors 32 may further extend in the longitudinal direction of the vacuum space 50 past the gap between the hooks. The heat transfer resistor 32 passes through two virtual lines L3 and L4 extending in the height direction of the vacuum space 50 from the hanger 130 so that the vacuum space 50 can be further extended in the longitudinal direction.

Referring to Fig. 22, the body 2 may have various thicknesses. The inner surface of the body may have various positional relationships compared to the vacuum adiabatic body. For example, there is (a) a case in which the expansion line L5 of the inner surface of the body may overlap the second portion 102 of the first plate. Here, the expansion line L5 of the inner surface of the body may extend in the height direction (Y direction) of the vacuum space 50. In this case, it can be simply said that the inner surface of the body overlaps the second portion 102 of the first plate. Alternatively, the expansion line of the inner surface of the body may (b) be disposed on the outside of the second portion 102 of the first plate and may (c) be disposed on the inside of the second portion 102 of the first plate. In the description of the embodiment, (a) a case in which the inner surface of the body overlaps the second portion 102 of the first plate is taken as an example.

When the door is opened and closed, a load may be transmitted to the heat transfer resistor 32 along an expansion line of the inner surface of the body 2. Among the loads, the dynamic load may have a large influence. The dynamic load may include an impact applied to the door by the body 2 when the door is opened and closed. The dynamic load may include a impact wave caused by a change in air flow in and out of the accommodation space generated when the door is opened and closed. The impact wave may be generated along the inner surface of the body. The impact wave may be generated along an expansion line of the inner surface of the body.

In order to prevent the deformation of the heat transfer resistor 32 due to the load and improve the radiation resistance performance, the heat transfer resistor 32 may pass through the expansion line L5 of the inner surface of the body and thus extend further in the longitudinal direction of the vacuum space 50. The support 30 may support the edge of the heat transfer resistor 32. At least one of the heat transfer resistors 32 may further extend in the longitudinal direction of the vacuum space 50 past an expansion line of the inner surface of the body 2. In the heat transfer resistor 32, the vacuum space 50 may further extend in the longitudinal direction past a virtual line L5 extending from the body 2 in the height direction of the vacuum space 50. An example of the heat transfer resistor may be a radiation resistance sheet.

Fig. 23 is a view comparing a cross-sectional view of a portion of a second side of the vacuum adiabatic body with a cross-sectional view of a portion of the first side of the vacuum adiabatic body.

Referring to Fig. 23, the portion of the second side of the vacuum adiabatic body and the portion of the first side of the vacuum adiabatic body are different from each other. The additional adiabatic body is different from each other at the portions of the first and second sides of the vacuum adiabatic body. A space in which the additional adiabatic body is placed may be defined as an interior of the first plate 10, the second plate 20, and the side plate 15. The additional adiabatic body 90 may use various adiabatic materials such as foam adiabatic material or pre-molded resin.

The adiabatic area (XY plane) of the additional adiabatic body 90 may be larger at the portion of the second side than at the portion of the first side. The adiabatic thickness in the height direction (Y direction) of the vacuum space 50 of the additional adiabatic body 90 may be larger at the portion of the second side than at the portion of the first side. Accordingly, more additional adiabatic body 90 may insulate the portion of the second side, and the adiabatic performance at the portion of the second side on which a component such as the latch 81 is placed may be reinforced. The adiabatic thickness in the longitudinal direction (X direction) of the vacuum space 50 of the additional adiabatic body 90 is greater at the portion of the first side than at the portion of the second side. Accordingly, it is possible to reduce the adiabatic loss leaking to the edge of the first side.

The adiabatic thickness change rate in the height direction (Y direction) of the vacuum space 50 of the additional adiabatic body 90 is greater at the portion of the first side than at the portion of the second side. Accordingly, it is possible to minimize the interference between the components according to the opening and closing of the door on the portion on which the hinge is placed while reducing the adiabatic loss. Accordingly, the inclination angle A of the second portion 202 of the second plate may be greater at the portion of the first side. The second part 202 of the second plate may cause interference with an external object, but since the inclination angle A of the second part 202 of the second plate is large, the interference between the components can be prevented.

The additional adiabatic body 90 may use a foam adiabatic material. The foam adiabatic material may be subjected to a process of solidifying after the foaming liquid is injected. The foaming liquid is a fluid and is affected by the hydraulic diameter of the injected space. The hydraulic diameter may be proportional to the adiabatic area and inversely proportional to the length of a curve surrounding the adiabatic area. The hydraulic diameter is larger at the portion of the second side than at the portion of the first side. The foaming liquid may flow more smoothly at the portion of the second side than at the portion of the first side. The foaming liquid may be more filled at the portion of the second side than at the portion of the first side. When a lot of foaming liquid is injected, a larger foaming pressure can be applied.

Since the hydraulic diameter is larger at the portion of the second side than at the portion of the first side, the foaming liquid at the portion of the first side does not flow smoothly. In order to improve the fluidity of the foaming liquid, the second portion 152 of the side plate at the portion of the first side may not extend to the component. In order to improve the fluidity of the foaming liquid, the second portion 152 of the side plate at the portion of the first side may maintain a predetermined distance from the component in the longitudinal direction (X direction) of the vacuum space 50. In order to improve the fluidity of the foaming liquid, the second portion 152 of the side plate at the portion of the first side may not overlap the component in the height direction (Y direction) of the vacuum space 50. Here, the component may include a hinge.

Although the fluidity of the foaming liquid is not bad at the portion of the second side, the position of each member may be shifted or the member may be deformed due to a high foaming pressure. The second portion 152 of the side plate at the portion of the second side may extend beyond the component in the longitudinal direction (X direction) of the vacuum space 50. Accordingly, the second portion 152 of the side plate and the part interact to maintain a positional relationship between the members according to the design. The second portion 152 of the side plate at the portion of the second side may overlap the component in the height direction (Y direction) of the vacuum space. Accordingly, the second portion 152 of the side plate and the component interact to maintain a positional relationship between the members according to the design. Here, the component may include a latch 81. In addition, several components may be in contact with each other, support each other or be fixed to each other. The movable member such as the latch 81 exposed to an external impact can maintain the original design position thereof by the interconnection structure.

The positional relationship between the second portion 152 of the side plate and the component may be similarly applied to the support 30, the heat transfer resistor 32, and the vacuum adiabatic expansion portion. An example of the heat transfer resistor may be a radiation resistance sheet.

A hinge including a hinge shaft 21 may be placed on the portion of the first side. A latch 81 may be placed on the portion of the second side. At least a portion of the latch may be accommodated in the component accommodation space 830. The part accommodation space 830 may accommodate various components exemplifying the latch. An additional adiabatic body 90 may not be placed in the component accommodation space 830. The additional adiabatic body 90 may not interfere with the operation of the component.

The component accommodation space 830 may be protected by a component case 810 that is opened upward in the height direction (y-axis) of the vacuum space. The component case 810 may provide a lower wall of the component accommodation space 830. The component case 810 may have a lower portion 811 adjacent to the second portion 152 of the side plate. The component case 810 may have an inner portion 812 adjacent to the central portion of the vacuum space. The component case 810 may have an outer portion 813 adjacent to the periphery of the vacuum space. The component case 810 may be provided as a single body. The second portion 102 of the first plate may have a gasket seating portion 103 on which the gasket 80 is placed. The second portion 102 of the first plate may have a plurality of bent cross-sections. The second portion 102 of the first plate may have fourth and

fifth portions

107 and 105 of the first plate extending in the height direction of the vacuum space. The fourth portion 107 of the first plate may be aligned with the inner portion 812. The fourth portion 107 of the first plate may be more adjacent to the component accommodation space 830 than the inner portion 812. The second portion 102 of the first plate may have a stepped portion 108. An upper end of the inner portion 812 may contact a lower end of the stepped portion 108. The foaming liquid may not flow between the inner portion 812 and the fourth portion 107 of the first plate. The fifth portion 105 of the first plate may be aligned with the outer portion 813. The fifth portion 105 of the first plate may be adjacent to the component accommodation space 830 than the outer portion 813. The fifth portion 105 of the first plate may have a stepped portion 1051. An upper end of the outer portion 813 may contact a lower end of the stepped portion 1051. The foaming liquid may not flow between the outer portion 813 and the fifth part 105 of the first plate. The second portion 102 of the first plate may have a sixth portion 106 of the first plate in contact with the second plate 20. The second plate 20 and the sixth portion 106 of the first plate may be securely fastened to each other.

An upper wall of the component accommodation space 830 may be provided by a component cover 820. The component cover 820 may have a step difference. The component cover 820 may have a plate corresponding surface 822 of the same height as the sixth portion 106 of the first plate. The component cover 820 may have a through-hole 823. The through-hole 823 may be provided in the plate corresponding surface 822. The component cover 820 may have a gasket seating portion 821 on which the gasket is seated. The gasket seating portion 821 and the plate corresponding surface 822 may be placed at different heights in the height direction of the vacuum space. At least a portion of the latch, for example, a locking jaw, may protrude out of the through-hole 823. The locking jaw may be caught on the body.

After the component case 810 and the first plate 10 are fastened, the latch 81 may be placed. After the latch 81 is placed, the component cover 820 may be fastened. After the component cover 820 is fastened, the gasket 80 may be fastened.

Referring to Fig. 24, an inner panel 111, an outer panel 112, an upper cover 112, a lower cover 113, a latch 81, or the like may be additionally installed. The inner panel 111, the outer panel 112, the upper cover 112, the lower cover 113, and the vacuum adiabatic body may form a space into which the foaming liquid is injected. The foaming liquid may be injected to form an additional adiabatic body 90.

The latch 81 may have a portion extending long in the depth direction (z-axis) of the vacuum space. The expanded portion may extend vertically long in the interior of the component accommodation space 830. The lower end of the latch may reach the lower end of the vacuum adiabatic body. An upper end of the latch may reach a central portion of the vacuum adiabatic body. An operation knob may be provided at a lower end of the latch. The locking jaw may be provided at an upper end of the latch. The operation knob may be operated by a user. A user may operate the manipulation knob to release the locking jaw. The door may be opened by operating the operation knob.

Fig. 25 is a view comparing the peripheries of both sides of the vacuum adiabatic body according to another embodiment and is a view comparing a cross-sectional view at the portion of a second side of the vacuum adiabatic body with that at the portion of a first side of the vacuum adiabatic body. Only characteristic parts of the original embodiment will be described, and descriptions of the same parts will be omitted.

Referring to Fig. 25, the first side and the second side may have the same component mounted on the additional adiabatic body. The component may include a gasket 80. The gasket 80 may lie on the same plane. A virtual line perpendicular to the virtual plane formed by the gasket 80 may be provided. A first virtual line L1 and a second virtual line L2 may be provided at the portion of the first side. A third virtual line L3 and a fourth virtual line L4 may be provided at the portion of the second side. An interval between the first and second virtual lines L1 and L2 may mean an area in which the component is placed on the portion of the first side. An interval between the third and fourth virtual lines L3 and L4 may mean an area in which the component is placed on the second side.

The vacuum space 50 has the portion of the first side more extended toward the periphery of the vacuum adiabatic body than the portion of the second side. In the vacuum space 50, the vacuum space 50 at the portion of the first side extends beyond the virtual line and extends more than at the portion of the second side. Accordingly, the portion of the first side can reinforce the adiabatic wall of the foam adiabatic material in which the vacuum space 50 is narrow in the height direction. By using the great adiabatic effect of the vacuum space 50, it is possible to reinforce the insufficient adiabatic effect of the foam adiabatic material.

The edge of the second portion 152 of the side plate moves more toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side. With respect to the edge of the second portion 152 of the side plate, the vacuum space 50 at the portion of the first side extends beyond the virtual line and thus extends more than at the portion of the second side. Accordingly, the second portion 152 of the side plate at the portion of the first side moves to the extent that the second portion almost touches the hinge shaft 21. The portion of the first side can reinforce the adiabatic wall of the foam adiabatic material in which the vacuum space 50 is narrow in the height direction. By using the great adiabatic effect of the vacuum space 50, it is possible to reinforce the insufficient adiabatic effect of the foam adiabatic material. A load applied to an area adjacent to the hinge shaft 21 may be further supported.

The edge of the heat transfer resistor 32 moves more toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side. With respect to the edge of the heat transfer resistor 32, the vacuum space 50 at the portion of the first side extends beyond the virtual line and thus extends more than at the portion of the second side. The portion of first side can reinforce the vacuum space 50 may reinforce the adiabatic wall of the foam adiabatic material in which the vacuum space 50 is narrow in the height direction. By using the great adiabatic effect of the vacuum space 50, it is possible to reinforce the insufficient adiabatic effect of the foam adiabatic material. Radiant heat transfer of the vacuum space 50 may be further reduced at the portion of the first side. An example of the heat transfer resistor described with reference to Fig. 19 may be a radiation resistance sheet.

The outermost bar among the supports 30 moves more toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side. In the outermost bar, the vacuum space 50 at the portion of the first side extends beyond the two virtual lines, and extends more than at the portion of the second side. With this configuration, the vacuum space 50 can be supported over a long area from at the portion of the first side.

The outermost bar among the supports 30 may not be placed in a area formed by the two virtual lines L1 and L2. In other words, the area in which the gasket 80 extends in the height direction of the vacuum space 50 and the outermost bar may not overlap. A heat conduction distance between the gasket 80 and the outermost bar may be increased. Accordingly, heat loss passing through the gasket 80 and the outermost bar can be reduced. Accordingly, it is possible to compensate for the adiabatic loss due to the narrow foam wall at the portion of the first side.

Referring to Fig. 23, after the component case 810 and the first plate 10 are fastened, the latch 81 may be placed. After the latch 81 is placed, the component cover 820 may be fastened. After the component cover 820 is fastened, the gasket 80 may be fastened.

Fig. 26 is a view for explaining a hinge shaft cover and a hinge case on which the hinge shaft is placed, and Fig. 27 is a view illustrating a state in which the hinge is installed in the hinge case.

Referring to Figs. 26 to 27, in order to place the hinge, the hinge may include the hinge shaft cover 22 on which the hinge shaft 21 is placed, and a hinged case 23 on which the link 24 which is connected to the hinge shaft cover 22 to connect the hinge body with the body 2 is placed. At least one of the hinge shaft cover 22 and the hinge case 23 may be made of resin. The hinge shaft cover 22 may surround the hinge shaft 21. At least one of the hinge shaft cover 22 and the hinge case 23 may be provided by being depressed in the depth direction (Z axis) of the vacuum space 50.

In the first vacuum adiabatic body 11, the expansion line extended by the member extending in the depth direction (Z axis) of the vacuum space 50 does not overlap the range L1 of the hinge shaft 21. Here, the overlap may mean the penetration. In the first vacuum adiabatic body 11, the expansion line extended by the member extending in the depth direction (Z axis) of the vacuum space 50 may not overlap the range (L2 or L3) of the hinge shaft cover 22. In the first vacuum adiabatic body 11, an expansion line extended by a member extending in the depth direction (Z axis) of the vacuum space 50 may overlap the range L4 of the hinge case 23. As a member extending in the depth direction of the vacuum space 50, at least one of the inner panel 111, the support 30, the radiation resistance sheet 32, the second plate 20, the first plate 10, and the outer panel 211 may be included.

An expansion line extended by a member extending in the depth direction (Z axis) of the vacuum space 50 does not form an inclination angle with the extension axis of the hinge shaft 21. An expansion line extended by a member extending in the depth direction (Z axis) of the vacuum space 50 may be parallel to the extension axis of the hinge shaft 21.

In the lower space of the hinge shaft cover 22, the flow of the foaming liquid is difficult. In order not to obstruct the flow path of the foaming liquid, the member extending in the depth direction (Z axis) of the vacuum space 50 may not invade the lower portion of the hinge shaft cover 22. A supply line path such as a water way, an electric way, or the like may pass through the hinge shaft 21. The supply line path may interfere with a member extending in the depth direction (Z axis) of the vacuum space 50. In order to avoid the interference, the member extending in the depth direction (Z-axis) of the vacuum space 50 may be prevented from entering the lower side of the hinge shaft cover 22.

An expansion line extended by a member extending in the depth direction (Z axis) of the vacuum space 50 from the first vacuum adiabatic body 11 may overlap the hinge case 23. Here, the overlap may mean the penetration. An expansion line extended by a member extending in the depth direction (Z-axis) of the vacuum space 50 may overlap the link 24. The first vacuum adiabatic body 11 may support the hinge case 23 by such an overlapping relationship. The member extending in the depth direction of the vacuum space 50 may include at least one of an inner panel 111, a support 30, a radiation resistance sheet 32, a second plate 20, a first plate 10, and an outer panel 211.

Since the first vacuum adiabatic body 11 is made of a metal having a high specific gravity, a greater load is generated on the hinge. Deformation may occur when an excessive load is applied to the hinge. The load applied to at least one of the hinge shaft cover 22 and the hinge case 23 may be supported by the first vacuum adiabatic body 11. Since the load of the hinge is a deformation causing rotational deformation, both the hinge shaft cover 22 and the hinge case 23 can be supported.

Since the first vacuum adiabatic body 11 supports the hinge case 23, deformation and damage of the hinge can be prevented. In order to facilitate the support of the hinge case 23, the second portion 152 of the side plate may contact the hinge case 23 in the height direction (Z axis) of the vacuum space 50. The second portion 152 of the side plate may support the hinge case 23. The second portion 152 of the side plate may contact the hinge shaft cover 22 in the longitudinal direction (X-axis) of the vacuum space 50. The second portion 152 of the side plate may support the hinge shaft cover 22.

Fig. 28 is a view comparing the peripheries of both sides of the vacuum adiabatic body according to another embodiment and is a view comparing a cross-sectional view of a second side of the vacuum adiabatic body with a first side of the vacuum adiabatic body. In this embodiment, only the different parts will be described, and the contents of the previously described parts will be applied to other parts.

Referring to Fig. 28, the outermost bar among the supports 30 may move more toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side. The outermost bar may be placed where the portion of the first side moves more than the portion of the second side beyond two virtual lines extending from the gasket 80 in the height direction in the vacuum state. The outermost bar at the portion of the first side may be disposed at a position further away from the second part 102 of the first plate in the edge direction compared to the portion of the second side.

With respect to the length of the heat conduction path flowing along the second portion 102 of the first plate, the first portion 101 of the first plate, and the outermost bar, the first plate heat conduction path L1 at the portion of the first side may be longer than the first plate heat conduction path L2 at the portion of the second side. It is possible to obtain an advantage that the heat conduction path of the first plate at the portion of the first side is lengthened. The long heat conduction path of the first plate heat conduction path L1 on the first side may compensate for the adiabatic loss of the small size foam adiabatic material at the portion of the first side.

The outermost bar at the portion of the first side may be placed at a location that has moved more than at the portion of the second side beyond two virtual lines extending from the gasket 80 in the height direction of the vacuum state. The outermost bar at the portion of the first side may not overlap the two virtual lines provided by the gasket 80. The outermost bar at the portion of the second side may overlap two virtual lines provided by the gasket 80. In other words, the area in which the gasket 80 extends in the height direction of the vacuum space 50 and the outermost bar may overlap at the portion of the second side and may not overlap at the portion of the first side. At the portion of the first side, the heat conduction path L3 conducting along the foam adiabatic material from the gasket 80 toward the outermost bar may be inclined. At the portion of the second side, the heat conduction path L4 conducting along the foam adiabatic material from the gasket 80 toward the outermost bar may be in a vertical direction. According to the inclination of the heat conduction path L3 passing through the foam adiabatic material from the first side, it is possible to compensate for the adiabatic loss of the small size foam adiabatic material at the portion of the first side.

According to the present disclosure, it is possible to provide a vacuum adiabatic body that can be applied to real life.

Claims

A vacuum adiabatic body comprising:

a first plate;

a second plate;

a seal configured to seal the first plate and the second plate to provide a vacuum space;

a side plate having a portion extending in the height direction of the vacuum space; and

a component fastening portion connected to at least one of the first and second plates and to which components are coupled.
The vacuum adiabatic body of claim 1,

wherein the side plate has a first portion of the side plate forming the vacuum space and a second portion of the side plate having a large expansion portion in the longitudinal direction of the vacuum space, and

wherein when two virtual lines extending in the height direction of the vacuum space from the installation area of the component are defined, at least a portion of the first portion of the side plate is placed in the inner area A of the two virtual lines.
The vacuum adiabatic body of claim 1,

wherein the component includes a gasket.
The vacuum adiabatic body of claim 2,

wherein all the first portion of the side plate all are placed in the inner area A of the two virtual lines.
The vacuum adiabatic body of claim 2, further comprising:

a pipe for exhausting the air of the vacuum space,

wherein at least a portion of the pipe is placed in the inner area A of the two virtual lines.
The vacuum adiabatic body of claim 1, further comprising:

a pipe for exhausting the air of the vacuum space,

wherein the pipe is insulated by a foam member.
The vacuum adiabatic body of claim 1, further comprising:

a hinge configured to be installed adjacent to any one side of the first and second plates and to allow a rotation operation,

wherein, in the vacuum space, the portion of the first side on which the hinge is installed extends further in the longitudinal direction of the vacuum space than the second side facing the first side.
The vacuum adiabatic body of claim 7,

wherein, when a gasket is installed on the first plate, and a virtual line extending in the height direction of the vacuum space from the end portion of the gasket is provided, in the vacuum space, the portion of the first side extends beyond the virtual line.
The vacuum adiabatic body of claim 7,

wherein the edge of the side plate is placed further from the center toward the periphery of the vacuum adiabatic body at the portion of the first side than at the portion of the second side.
The vacuum adiabatic body of claim 7,

Wherein, when a gasket is installed on the first plate and a virtual line extending in the height direction of the vacuum space from the end portion of the gasket is provided, in the edge of the side plate, the portion of the first side extends beyond the virtual line.
The vacuum adiabatic body of claim 7,

wherein the heat transfer resistor includes a radiation resistance sheet that resists heat radiation between the first and second plates, and

wherein, in the edge of the radiation resistance sheet, the portion of the first side is placed further from the center toward the periphery of the vacuum adiabatic body than the portion of the second side.
The vacuum adiabatic body of claim 7,

wherein, when a gasket is installed on the first plate, and a virtual line extending in the height direction of the vacuum space from the end portion of the gasket is provided, in the edge of the radiation resistance sheet, the portion of the first side extends beyond the virtual line.
The vacuum adiabatic body of claim 1, further comprising:

a hinge configured to be installed adjacent to any one side of the first and second plates and to allow a rotational operation; and

a plurality of bars supporting the first and second plates,

wherein, in the outermost bar among the bars, the portion of the first side on which the hinge is installed further moves toward the periphery of the vacuum adiabatic body than the portion of the second side facing the first side.
The vacuum adiabatic body of claim 13,

wherein, in the outermost bar, the portion of the first side on which the hinge is installed is closer to the edge of the vacuum adiabatic body than the portion of the second side facing the first side.
The vacuum adiabatic body of claim 13,

wherein the outermost bar on the portion of the first side is placed at a position further from the center of the vacuum space in the edge direction from the second portion of the first plate, than the portion of the second side.
The vacuum adiabatic body of claim 13, further comprising:

a gasket configured to be in contact with the first plate,

wherein, in the outermost bar on the portion of the first side, the installation area of the gasket does not overlap two virtual lines provided in the height direction of the vacuum space.
The vacuum adiabatic body of claim 13,

wherein the outermost bar at the portion of the second side overlaps two virtual lines provided by the gasket.
The vacuum adiabatic body of claim 13,

wherein the additional adiabatic body at the portion of the first side has a smaller thickness of the insulating wall than the additional adiabatic body at the portion of the second side.
A refrigerator comprising:

a body in which the article is accommodated, and

a door configured to open and close the body,

wherein the door includes

a first plate,

a second plate,

a seal configured to seal the first plate and the second plate to provide a vacuum space,

a side plate having a portion extending in the height direction of the vacuum space, and

a plate component fastening portion connected to at least one of the first and second plates to which components are coupled,

wherein the side plate has a first portion of the side plate forming the vacuum space and a second portion of the side plate having a large extension portion in the longitudinal direction of the vacuum space,

wherein the heat transfer resistor includes a radiation resistance sheet for reducing heat radiation between the first and second plates, and

wherein at least one of the radiation-resistance sheets further extends beyond the expansion line of the inner surface of the body and further extends in the longitudinal direction of the vacuum space.
A vacuum adiabatic body comprising:

a first plate having a first temperature;

a second plate having a second temperature different from the first temperature;

a seal configured to seal the first plate and the second plate so as to provide an internal space provided in a vacuum state;

a side plate having a portion extending in a height direction of the inner space; and

a hinge configured to be installed adjacent to any one side of the first and second plates and to allow a rotation operation,

wherein the vacuum adiabatic body is manufactured by

a vacuum adiabatic body component preparation step in which the first plate and the second plate are prepared in advance,

a vacuum adiabatic body component assembly step in which the prepared first plate and the second plate are assembled, and

a vacuum adiabatic body vacuum exhaust step in which the gas in the space formed between the first plate and the second plate is discharged after the component assembly step.