Vacuum adiabatic body

Abstract

The vacuum adiabatic body of the present invention comprises: a first plate having a first temperature; a second plate having a second temperature different from the first temperature; and a sealing portion that seals the first plate and the second plate so as to be able to provide a vacuum space portion.

Description

Technical Field

[0001] The invention relates to a vacuum thermal insulator. Background Art

[0002] The heat insulation performance can be improved by forming a heat insulation wall using a vacuum. A device that has a heat insulation effect with at least a portion of its internal space formed by a vacuum can be called a vacuum insulator.

[0003] The applicant has developed a technology for obtaining a vacuum insulator that can be used in various devices and home appliances, and a vacuum insulator and a refrigerator are disclosed in Korean Patent Publication No. 1020200001396A. The vacuum insulator of the cited document discloses that a heat exchanger is provided inside a vacuum space.

[0004] The cited document proposes the structure and support structure of the heat exchanger placed in the vacuum space. The cited document does not disclose the specific configuration of the heat exchanger and its relationship with other components. For example, the relationship between the heat exchanger and other components inside the vacuum space and the placement method of the heat exchanger are not disclosed. Summary of the invention

[0005] Problems to be solved by the invention

[0006] The present invention proposes a heat exchanger arrangement structure without loss of thermal insulation effect.

[0007] In addition to the above examples, the present invention proposes specific problems to be solved and solutions to the problems in [Technical solution to the problem] and [Specific implementation method].

[0008] Technical solutions to the problem

[0009] The vacuum insulation body of the present invention may include: a first plate having a first temperature; a second plate having a second temperature different from the first temperature; and a vacuum space portion formed between the first plate and the second plate.

[0010] A sealing portion that seals the first plate and the second plate to be able to provide a vacuum space portion may be included.

[0011] A support member that holds the vacuum space portion may be included.

[0012] The support member may be made by injection molding, and an injection molding gate is formed on the support member.

[0013] The injection gate may include: an injection rod for injection liquid to flow in from the outside; and an injection flow path for the injection liquid to diffuse in multiple directions.

[0014] The injection rod may be disposed on at least one of a first grid of the support plate and a second grid different from the first grid.

[0015] An injection base may be located between the injection rod and the injection flow path.

[0016] The injection base may be larger than the grid.

[0017] The cross-sectional area of ​​the injection flow path may be greater than or equal to the cross-sectional area of ​​the grid of the support plate.

[0018] The number of the injection channels may be at least one of one, two, four and eight.

[0019] The support may include a rod holding the first plate and the second plate, and the injection rod may be disposed at the same position as the rod of the support.

[0020] The rod of the support and the injection rod may be arranged on the same plane or on different planes.

[0021] The slots supporting the rods of the support member and the injection rod may be arranged on the same plane.

[0022] A tube provided in at least one of the first plate and the second plate may be included.

[0023] The tube and the injection gate may be spaced apart in a thickness direction of the vacuum space portion; or when an extension line is drawn along an extension direction of the tube, the extension line may intersect with the injection gate.

[0024] The inclination angle of the injection rod of the injection gate may be greater than the inclination angle of the rod of the support member.

[0025] The height of the injection gate may be smaller than the height of the rod.

[0026] The injection gate may include: an injection rod for injection liquid to flow in from the outside; an injection base for the injection liquid to diffuse to multiple locations; and an injection flow path for the injection liquid to diffuse to multiple directions.

[0027] An anti-radiation sheet that reduces radiative heat transfer from the vacuum space portion may be included.

[0028] The injection gate may support at least any one side of the anti-radiation sheet.

[0029] The support member may include: a first support plate and a second support plate, at least a portion of the first support plate and the second support plate being spaced apart from each other; a first injection gate of the first support plate; and a second injection gate of the second support plate.

[0030] The first support plate and the second support plate may be spaced apart and face each other.

[0031] A storage space formed between the first support plate and the second support plate may be included.

[0032] A heat exchanger disposed inside the vacuum space portion may be included.

[0033] The injection gate and the heat exchanger may be placed inside adjacent and different grids of the support member.

[0034] The injection gate may capture at least one of a peripheral portion and a central portion of the anti-radiation sheet and at least one of unit bodies constituting the anti-radiation sheet.

[0035] At least one of the two or more injection gates can support one side of the anti-radiation sheet.

[0036] A support member may be included, the support member being provided in at least one of an interior of the vacuum space portion and a space adjacent to the first plate and the second plate to maintain the vacuum space portion.

[0037] This may include providing an injection moulding gate for the support member.

[0038] The support member may include a support plate. The injection gate may be formed at the support member.

[0039] The support plate may include a plurality of ribs in the form of a grid.

[0040] The injection gate may be formed in at least a portion of the plurality of ribs.

[0041] The plurality of ribs may include a first rib where the injection gate is formed and a second rib where the injection gate is not formed.

[0042] At least one of the first ribs may have a greater width than at least one of the second ribs, thereby improving the fluidity of the injection liquid.

[0043] The injection gate may include a portion extending from the rib in a height direction of the vacuum space portion.

[0044] The support member may include: a first support plate configured to be closer to the first plate than the second plate; and a second support plate configured to be closer to the second plate than the first plate.

[0045] The injection gate may include a first injection gate formed at the first support plate and a second injection gate formed at the second support plate.

[0046] The first injection gate and the second injection gate may be arranged not to overlap each other in a height direction of the vacuum space portion.

[0047] The first injection gate and the second injection gate may be arranged to overlap each other in a height direction of the vacuum space portion.

[0048] A thermal resistor may be included, the thermal resistor being provided in at least one of an interior of the vacuum space portion and a space adjacent to the first plate and the second plate to reduce heat transfer between the first plate and the second plate.

[0049] The thermal resistor may include a radiation plate that reduces radiative heat transfer between the first plate and the second plate.

[0050] Movement of at least a portion of the thermal resistor may be limited by the injection gate.

[0051] At least a portion of the thermal resistor may be disposed between the first injection gate and the second injection gate.

[0052] A through hole may be formed in at least one of the first plate and the second plate.

[0053] A tube may be included, the tube being connected to the through hole to provide a passage for fluid flow.

[0054] The injection gate may overlap the through hole in a height direction of the vacuum space portion.

[0055] The injection gate may overlap the tube in a height direction of the vacuum space portion. A getter may be provided at a lower portion of the tube.

[0056] Effects of the Invention

[0057] According to the present invention, a vacuum thermal insulator having high thermal insulation efficiency can be provided.

[0058] According to the present invention, a vacuum thermal insulator can be manufactured easily.

[0059] The effects of the present invention are described in more detail in [Detailed Description of the Invention]. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a perspective view of the refrigerator of the embodiment.

[0061] Figure 2 This is a diagram schematically showing a vacuum insulation body used in a refrigerator body and a door.

[0062] Figure 3 2 is a diagram showing an example of a support member for holding a vacuum space portion.

[0063] Figure 4 It is a diagram for explaining an embodiment of a vacuum thermal insulator centered around a thermal resistor.

[0064] Figure 5 This is a graph observing the exhaust process of the interior of the vacuum insulation body in terms of time and pressure when the support member is used.

[0065] Figure 6 This is a graph comparing vacuum pressure and gas thermal conductivity.

[0066] Figure 7 It is a diagram for explaining a method of manufacturing a vacuum insulation body.

[0067] Figure 8 This is an example in which a support and a heat exchanger are provided.

[0068] Fig. 9 is an embodiment of a support.

[0069] Fig.10 It is a diagram showing an example of an injection gate.

[0070] Fig.11 It is a figure explaining the shape of an injection gate.

[0071] Fig.12 is a cross-sectional view of a support member of an embodiment associated with an injection molding gate.

[0072] Fig.13 This is an embodiment of the configuration relationship between the injection gate and the heat exchanger.

[0073] Fig.14 It is a diagram showing an example of an injection gate. DETAILED DESCRIPTION

[0074] Specific embodiments will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and should not be interpreted as being limited to the embodiments set forth herein, and those of ordinary skill in the art who understand the spirit of the present invention can easily implement other embodiments included in the same conceptual scope by adding, changing, deleting and adding components; of course, it should be understood that they are also included in the scope of the present invention.

[0075] For a correct understanding, in the following drawings and descriptions, the names may be arranged as follows: The connecting plate or the supporting plate, as a plate-shaped structure supporting the first plate and the second plate, may also be referred to as a supporting plate.

[0076] The present invention can have many embodiments for implementing this idea, and in each embodiment, any part can be replaced with the corresponding part according to another embodiment or the part with relevant effect. The present invention can be any one example shown below, or the combination (combine, combination) of two or more examples.

[0077] The present invention may provide a vacuum insulator, comprising: a first plate; a second plate; and a vacuum space portion formed between the first plate and the second plate. The vacuum insulator may include a sealing portion for providing the space portion (vacuum space portion) in the vacuum state. The vacuum space may be a space in a vacuum state in an internal space arranged between the first plate and the second plate. The sealing portion may seal the first plate and the second plate to provide an internal space set in a vacuum state. The vacuum insulator may optionally include a side plate connecting the first plate to the second plate. In the present disclosure, the expression "plate" may refer to at least one of the side plate or the first and second plates. The side plate and at least a portion of the first and second plates may be integrally arranged, or at least a plurality of portions may be sealed to each other. Optionally, the vacuum insulator may include a support member for maintaining the vacuum space. The vacuum insulator may selectively include a thermal insulator that reduces the amount of heat transfer between a first space arranged near the first plate and a second space arranged near the second plate, or reduces the amount of heat transfer between the first plate and the second plate.

[0078] Optionally, the vacuum insulation may include a component connection portion provided on at least a portion of the plate. Optionally, the vacuum insulation may include another insulation. The other insulation may be provided to be connected to the vacuum insulation. The other insulation may be an insulation having a vacuum degree which is equal to or different from the vacuum degree of the vacuum insulation. The other insulation may be an insulation not including a vacuum degree which is less than the vacuum degree of the vacuum insulation, or a portion thereof which is in a vacuum state. In this case, it may be advantageous to connect another object to the other insulation.

[0079] In the present disclosure, the direction along the wall defining the vacuum space may include the longitudinal direction of the vacuum space and the height direction of the vacuum space. The height direction of the vacuum space may be defined as any one of a plurality of imaginary lines (described later) that connect the first space to the second space 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.

[0080] In the present disclosure, object A is connected to object B means that at least a portion of object A and at least a portion of object B are directly connected to each other, or at least a portion of object A and at least a portion of object B are connected to each other through an intermediary between object A and object B. The intermediary may be provided on at least one of object A or object B. The connection may include object A being connected to the intermediary, and the intermediary being connected to object B.

[0081] A portion of the intermediate may include a portion connected to any one of the object A and the object B. Another portion of the intermediate 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 into a shape connected in the above manner. In the present disclosure, an embodiment of the connection may be support, bonding, or sealing, which will be described later.

[0082] In the present disclosure, object A is supported by object B means that the movement of object A is restricted by object B in one or more directions of +X axis direction, -X axis direction, +Y axis direction, -Y axis direction, +Z axis direction and -Z axis direction. In the present invention, an embodiment of support may be bonding or sealing, which will be described later. In the present invention, object A is bonded to object B and may be defined as the movement of object A is restricted by object B in one or more directions of X axis direction, Y axis direction and Z axis direction.

[0083] In the present disclosure, the combined embodiment may be a seal which will be described later. In the present disclosure, the sealing of object A to object B may be defined as a state where fluid movement is not allowed at the portion where object A and object B are connected. In the present disclosure, one or more objects, i.e., object A and at least a portion of object B, may be defined as including a portion of object A, the entirety of object A, a portion of object B, the entirety of object B, a portion of object A and a portion of object B, a portion of object A and the entirety of object B, the entirety of object A and a portion of object B, and the entirety of object A and the entirety of object B. In the present disclosure, plate A may be a wall defining space A and may be defined as at least a portion of plate A may be a wall defining at least a portion of space A.

[0084] 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, the central portion of an 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. The periphery of the object may be defined as a portion disposed on the left or right side of the central portion among the three divided portions. The periphery of the object may include a surface in contact with the central portion and a surface opposite to the surface.

[0085] The opposite side may be defined as a boundary or edge of an object. Examples of objects may include vacuum insulators, plates, thermal resistors, supports, vacuum spaces, and various components to be introduced in the present disclosure. In the present disclosure, the degree of heat transfer resistance may represent the degree to which an object blocks heat transfer, and may be defined as a value determined by the shape including the thickness of the object, the material of the object, and the processing method of the object. The degree of heat resistance may be defined as the sum of the degree of blocking conduction, the degree of blocking radiation, and the degree of blocking convection.

[0086] The vacuum insulator according to the present disclosure may include a heat transfer path defined between spaces with different temperatures, or a heat transfer path defined between plates with different temperatures. For example, the vacuum insulator according to the present disclosure may include a heat transfer path through which cold (cold, cold air) is transferred from a low temperature plate to a high temperature plate. In the present disclosure, when the bent 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 bent portion may be defined as a portion (including 90 degrees) connecting the first portion to the second portion.

[0087] In the present disclosure, the vacuum insulation body may optionally include a component connection portion. The component connection portion may be defined as a portion provided on the board and connected to the components. The component connected to the board may be defined as a penetration portion provided to pass through at least a portion of the board and a surface component provided to be connected to the surface of at least a portion of the board.

[0088] At least one of the penetrating component or the surface component can be connected to the component coupling portion. The penetrating component can be a component that defines a path for a fluid (electricity, refrigerant, water, air, etc.) to pass through. In the present disclosure, a fluid is defined as any kind of flowing substance. Fluids include moving solids, liquids, gases, and electricity. For example, the component can be a component that defines a path for a refrigerant for heat exchange to pass through, such as a suction line heat exchanger (SLHX) or a refrigerant pipe.

[0089] The component may be an electrical wire that supplies power to the device. As another example, the component may be a component that defines a path for air to pass through, such as a cold duct, a hot air duct, and an exhaust port. As another example, the component may be a path for fluids such as coolants, hot water, ice, and defrost water to pass through. The surface component may include at least one of a perimeter insulation, a side panel, an injected foam, a preformed resin, a hinge, a latch, a basket, a drawer, a shelf, a light, a sensor, an evaporator, a front trim, a heat line, a heater, an outer cover, or another insulation.

[0090] As an example of applying the vacuum insulation, the present disclosure may include a device having the vacuum insulation. Examples of the device may include an appliance. Examples of the appliance may include a home appliance, including a refrigerator, a cooking appliance, a washing machine, a dishwasher, and an air conditioner. As an example of applying the vacuum insulation to the device, the vacuum insulation may construct at least a portion of a door and a body of the device.

[0091] As an example of a door, the vacuum insulator may construct 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 refer to a small door placed in a general door. As another example of applying the vacuum insulator, the present disclosure may include a wall having the vacuum insulator. An example of a wall may include a wall of a building, which includes a window.

[0092] Below, the present disclosure will be described in detail with reference to the accompanying drawings. The drawings attached to the embodiments may be represented differently, exaggeratedly or simplified from the actual items, and the detailed components may be represented with simplified features. The embodiments should not be interpreted as being limited to the sizes, structures and shapes shown in the drawings. In the embodiments attached to the drawings, unless the descriptions conflict with each other, some structures in the drawings of one embodiment may be applied to some structures in the drawings of another embodiment, and some structures of one embodiment may be applied to some structures in another embodiment.

[0093] In the description of the drawings of the embodiments, the same reference numerals may be assigned to different drawings as reference numerals of specific components constituting the embodiments. Components with the same reference numerals may perform the same function. For example, in all embodiments, the first plate constituting the vacuum insulation body has a portion corresponding to the first space and is represented by reference numeral 10. For all embodiments, the first plate may have the same number and may have a portion corresponding to the first space, but in each embodiment, the shape of the first plate may be different. Not only the first plate, but also the side plate, the second plate, and another insulation body may be understood in the same way.

[0094] Figure 1 is a perspective view of a refrigerator according to an embodiment, and Figure 2 is a perspective view showing a vacuum insulator used for a door and a body of a refrigerator. Figure 1 The refrigerator 1 includes: a main body 2 provided with a cavity 9 capable of storing items; and a door 3 configured to open and close the main body 2.

[0095] The door 3 may be rotatably or slidably arranged to open or close the cavity 9. The cavity 9 may provide at least one of a refrigerating chamber and a freezing chamber.

[0096] A cold source may be provided to provide cooling to the cavity. For example, the cold source may be an evaporator 7 that evaporates the refrigerant to remove heat. The evaporator 7 may be connected to a compressor 4 that compresses the evaporated refrigerant 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.

[0097] Fans corresponding to the evaporator and the condenser may be provided to facilitate 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 the heat radiation surface of the thermoelectric element. Fans corresponding to the heat absorption surface and the heat generation surface may be provided to facilitate heat exchange.

[0098] refer to Figure 2 , plates 10, 15 and 20 may be walls defining the vacuum space. The plates may be walls separating the vacuum space from the outer space of the vacuum space. Examples of the plates are as follows. The present invention may be an example of one of the following examples or a combination of two or more examples.

[0099] The plate may be provided as one part, or may be provided to include at least two parts connected to each other.

[0100] As a first example, the plate may include at least two parts connected to each other along the direction of the wall defining the vacuum space. Either of the two parts may include a part (e.g., a first part) defining the vacuum space. The first part may be a single part, or may include at least two parts sealed to each other. The other of the two parts may include a part (e.g., a second part) extending from the first part of the first plate in a direction away from the vacuum space or extending in a direction inside the vacuum space.

[0101] As a second example, the plate may include at least two layers connected to each other in the thickness direction of the plate. Either of the two layers may include a layer (e.g., a first portion) defining a vacuum space. The other of the two layers may include a portion (e.g., a second portion) disposed in an external space (e.g., a first space and a second space) of the vacuum space.

[0102] In this case, the second part can be defined as an outer cover of the board. The other layer of the two layers may include a portion (e.g., the second part) disposed in the vacuum space. In this case, the second part can be defined as an inner cover of the board.

[0103] 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 a vacuum space, and another surface of the first plate (the outer surface of the first plate) may provide a wall defining a first space. The first space may be a space disposed near the first plate, a space defined by a device, or an internal space of a device. In this case, the first plate may be referred to as an inner shell. When the first plate and the additional member define an internal space, the first plate and the additional member may be referred to as an inner shell.

[0104] The inner shell may include two or more layers. In this case, one of the multiple 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 a vacuum space, and another surface of the second plate (the outer surface of the second plate) may provide a wall defining a second space. The second space may be a space disposed near the second plate, another space defined by the device, or an external space of the device. In this case, the second plate may be referred to as an outer shell. When the second plate and an additional component define an external space, the second plate and the additional component may be referred to as an outer shell. The outer shell may include two or more layers. In this case, one of the multiple layers may be referred to as an outer panel.

[0105] 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 panel may include a side panel 15. Figure 2 In the embodiment, according to the arrangement of the side plate, the side plate may also perform the function of the anti-conduction sheet 60 which will be described later. The side plate may include a portion extending in the height direction of the space defined between the first plate and the second plate.

[0106] The side plate may include a portion extending in a height direction of the vacuum space.

[0107] 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 the outer space of the vacuum space. The outer space of the vacuum space may be a space in which another insulator to be described later is disposed or at least one of the first space or the second space. The side plate may be integrally provided by extending an independent component connected to at least one of the first plate or the second plate or at least one of the first plate or the second plate.

[0108] The plate may optionally include a curved portion. In the present disclosure, a plate including a curved portion may be referred to as a bent 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 curved portion may include at least one of the first plate, the second plate, and the side plate. The plate may include at least one of the first curved portion or the second curved portion, examples of which are as follows.

[0109] First, the side panel may include a 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, the radius of curvature of each of the first curved portion and the second curved portion may be large. Another portion of the first curved portion may be connected to an additional straight portion or an additional curved portion disposed between the first curved portion and the second curved portion. In this case, the radius of curvature of each of the first curved portion and the second curved portion may be small.

[0110] Second, the side plate may include a second curved portion. A portion of the second curved portion may include a portion connected to the second plate. Another portion of the second curved portion may include a portion connected to the first curved portion. In this case, the radius of curvature of each of the first curved portion and the second curved portion may be very large. Another portion of the second curved portion may be connected to an additional straight portion or an additional curved portion disposed between the first curved portion and the second curved portion. In this case, the radius of curvature of each of the first curved portion and the second curved portion may be small. Here, a straight portion may be defined as a portion having a radius of curvature greater than the radius of curvature of a curved portion. A straight portion may be understood as a portion having a perfect plane or having a radius of curvature greater than the radius of curvature of a curved portion. Third, the first plate may include a first curved portion. A portion of the first curved portion may include a portion connected to the side plate. The portion connected to the side plate may be disposed at a position away from the second plate, at a portion of the first plate extending in the longitudinal direction of the vacuum space.

[0111] Fourth, the second plate may include a second curved portion. A portion of the second curved portion may include a portion connected to the side plate. The portion connected to the side plate may be arranged at a position away from the first plate, at a portion of the second plate extending 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 with any one of the third and fourth examples described above.

[0112] 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 the vacuum degree of A is higher than the vacuum degree of B means that the vacuum pressure of A is lower than the vacuum pressure of B.

[0113] In the present disclosure, the sealing portion 61 may be a portion disposed 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. Sealing may include fusion welding for connecting a 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 where a molten adhesive (such as a filler metal) is not interposed therebetween, a portion of the first plate and the second plate and a portion of the component connection portion may be welded by high frequency brazing, etc., or a plurality of objects may be welded by a molten adhesive that generates heat. Sealing may include pressure welding for connecting a plurality of objects by mechanical pressure applied to at least a portion of the plurality of objects.

[0114] For example, as a member connected to the member coupling portion, an object made of a material having a smaller degree of resistance to deformation than that of a plate may be pressure-welded by a method such as pinch-off.

[0115] The mechanical room 8 may be optionally disposed outside the vacuum insulation. The mechanical room may be defined as a space in which components connected to a cold source are housed. Optionally, the vacuum insulation may include a port 40. The port may be disposed on either side of the vacuum insulation to exhaust air from the vacuum space 50.

[0116] Optionally, the vacuum insulation may include a pipe 64 that passes through the vacuum space 50 to install components connected to the first space and the second space. Examples of the aforementioned pipe may be ports such as an exhaust port or a getter port.

[0117] Figure 3 is a view showing an example of a support member for maintaining a vacuum space. Examples of the support member are as follows. The present disclosure may be any one of the following examples, or a combination of two or more examples.

[0118] The supports 30 , 31 , 33 , and 35 may reduce deformation of at least some of the vacuum space 50 , the board, and a thermal resistor to be described later due to an external force.

[0119] To this end, the supports 30, 31, 33 and 35 may be provided to support at least a portion of the thermal resistor and the plate to be described later. The external force may include at least one of the vacuum pressure or the external force other than the vacuum pressure. When deformation occurs in a direction in which the height of the vacuum space is lower, the supports may reduce an increase in at least one of radiation heat conduction, gas heat conduction, surface heat conduction or support member heat conduction, which will be described later.

[0120] The support member may be an object provided to maintain a gap between the first plate and the second plate, or an object provided to support the thermal resistor. The support member may have a higher degree of deformation resistance than the plate, or the support member may be provided to a portion having a weaker degree of deformation resistance among a plurality of portions constituting the vacuum insulator, a device having the vacuum insulator, and a wall having the vacuum insulator.

[0121] According to an embodiment, the degree of deformation resistance indicates the degree to which an object resists deformation due to an external force applied to the object, and is a value determined by the shape including the thickness of the object, the material of the object, the processing method of the object, etc. Examples of a portion having a weak degree of deformation resistance include the vicinity of a curved portion defined by a plate, at least a portion of the curved portion, the vicinity of an opening defined in a device body provided by a plate, or at least a portion of the opening.

[0122] The support member may be provided to surround at least a portion of the opening or the curved portion, or may be provided to correspond to the shape of the opening or the curved portion.

[0123] It is not excluded that the support is arranged in other parts.An opening may be understood as a part of the device comprising a body and a door capable of opening or closing the opening defined in the body.

[0124] Examples of supports configured to support the board are as follows. First, at least a portion of the support may be disposed in a space defined within the interior of the board. The board may include a portion having a plurality of layers, and the support may be disposed between the plurality of layers. Optionally, the support may be configured to be connected to at least a portion of the plurality of layers. The support

[0125] The support member may be arranged to support at least a portion of the plurality of layers. Second, at least a portion of the support member may be arranged to be connected to a surface defined on the outer side of the plate. The support member may be arranged in the vacuum space or in the outer space of the vacuum space. For example, the plate may include a plurality of layers, and the support member may be arranged to support any one of the plurality of layers. Optionally, the support member may be arranged to support another layer of the plurality of layers. For example, the plate may include a plurality of portions extending in the longitudinal direction.

[0126] The support member may be arranged to support any one of the plurality of parts. Optionally, the support member may be arranged to support another one of the plurality of parts. As yet another example, the support member may be arranged in the vacuum space or in the outer space of the vacuum space as an independent component distinguished from the plate. Optionally, the support member may be arranged to support at least a portion of a surface defined on the outer side of the plate. Optionally, the support member may be arranged to support one surface of the first plate and one surface of the second plate.

[0127] One surface of the first plate and one surface of the second plate may be disposed to face each other.

[0128] Third, the support member may be provided as a whole with the plate. Instead of the example in which the support member is provided to support the plate, it can be understood that the support member is provided as an example in which the support member is provided to support the thermal resistor. Repeated descriptions will be omitted.

[0129] Examples of supports designed to reduce heat transfer through the supports are as follows. First, at least a portion of a component disposed near the support may be disposed not to contact the support, or disposed in an empty space provided by the support. Examples of components include a component or pipe connected to a thermal resistor to be described later, an exhaust port, an air intake port, a component or pipe passing through a vacuum space, or a component or pipe at least a portion of which is disposed in a vacuum space.

[0130] Examples of the aforementioned tube may be ports such as an exhaust port or a getter port. Examples of the empty space may include an empty space provided in a support, an empty space provided between a plurality of supports, and an empty space provided between a support and an independent component distinct from the support.

[0131] Optionally, at least a portion of the component may be disposed within a through hole defined in the support, between a plurality of rods, between a plurality of connecting plates, or between a plurality of supporting plates. Optionally, at least a portion of the component may be disposed in a spacing between a plurality of rods, between a plurality of connecting plates, or between a plurality of supporting plates. Second, the insulator may be disposed on at least a portion of the support, or disposed in the vicinity of at least a portion of the support.

[0132] The insulator may be arranged to contact the support, or to not contact the support. The insulator may be arranged at a portion where the support and the plate contact each other. The insulator may be arranged on at least a portion of one surface and another surface of the support, or may be arranged to cover at least a portion of one surface and another surface of the support. The insulator may be arranged on at least a portion of the periphery of one surface and another surface of the support.

[0133] The insulator may be arranged to cover at least a portion of the periphery of one surface of the support and the periphery of another surface. The support may include a plurality of rods. The insulator may be arranged in an area from a point (point, position) at which any one of the plurality of rods is arranged to a midpoint between the one rod and the surrounding rods. Third, when the cold is transferred through the support, the heat source may be arranged at the position where the thermal insulator described in the second example is arranged. When the temperature of the first space is lower than the temperature of the second space, the heat source may be arranged on or near the second plate. When the heat is transferred through the support, the cold source may be arranged at the position where the thermal insulator described in the second example is arranged.

[0134] When the temperature of the first space is higher than the temperature of the second space, the cold source may be disposed on or near the second plate. As a fourth example, the support may include a portion having a thermal resistance higher than that of a metal, or a portion having a thermal resistance higher than that of a plate. The support may include a portion having a thermal resistance lower than that of another insulator.

[0135] The support may include at least one of non-metallic materials, PPS and glass fiber (GF), low outgassing PC, PPS or LCP. The reason for this is that high compressive strength, low outgassing and water absorption, low thermal conductivity, high compressive strength at high temperatures, and excellent processability can be obtained.

[0136] Examples of the support member may be the rods 30 and 31, the connecting plate 35, the support plate 35, the porous material 33, and the filler 33. In this embodiment, the support member may include any one of the above examples or an example combining at least two examples.

[0137] As a first example, the support member may include rods 30 and 31. The rod 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 rod may include a portion extending in a height direction of the vacuum space and a portion extending in a direction substantially perpendicular to the direction in which the plate extends. The rod may be arranged to support only one of the first plate and the second plate, or may be arranged to support both the first plate and the second plate.

[0138] For example, one surface of the rod may be configured to support a portion of the plate. Another surface of the rod may be configured not to contact another portion of the plate. As another example, one surface of the rod may be configured to support at least a portion of the plate. Another surface of the rod may be configured to support another portion of the plate.

[0139] The support may include a rod with an empty space therein, or include a plurality of rods with an empty space provided between the plurality of rods. In addition, the support may include a rod, and the rod may be arranged to provide an empty space between the rod and a separate component distinct from the rod. The support may include a portion connected to the rod.

[0140] The support member may optionally include a connecting plate 35, which includes a portion that connects a plurality of rods to each other. The connecting 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 cross-sectional area of ​​the XZ plane of the connecting plate may be greater than the cross-sectional area of ​​the XZ plane of the rod. The connecting plate may be disposed on at least one of one surface and another surface of the rod, or may be disposed between one surface and another surface of the rod.

[0141] At least one of the one surface and the other surface of the rod may be a surface on which the rod supports the plate. The shape of the connecting plate is not limited. The support may include a connecting plate having an empty space therein. The support may include a plurality of connecting plates and an empty space is provided between the plurality of connecting plates. In addition, the support may include a connecting plate.

[0142] The connecting plate may be arranged to provide an empty space between the connecting plate and an independent component distinguished from the connecting plate. As a second example, the support member 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 arranged to support only one of the first plate and the second plate. The support plate may include a plurality of ribs 35 in the form of a grid.

[0143] The support plate may be configured to support both the first plate and the second plate. For example, one surface of the support plate may be configured to support a portion of the plate, and another surface of the support plate may be configured not to contact another portion of the plate. As another example, one surface of the support plate may be configured to support at least a portion of the plate, and another surface of the support plate may be configured to support another portion of the plate. The cross-sectional shape of the support plate is not limited.

[0144] The support member may comprise a support plate with an empty space therein, or may comprise a plurality of support plates with an empty space disposed therebetween. In addition, the support member may comprise a support plate, and the support plate may be arranged to provide an empty space between the support plate and an independent component distinguishable from the support plate.

[0145] As a third example, the support member may include a porous material 33 or a filler 33. The interior of the vacuum space may be supported by the porous material or the filler. The interior of the vacuum space may be completely filled with the porous material or the filler. The support member may include a plurality of porous materials or a plurality of fillers. The plurality of porous materials or the plurality of fillers may be arranged to contact each other.

[0146] When the empty space is provided inside the porous material, between a plurality of porous materials, or between the porous material and an independent component distinct from the porous material, the porous material may be understood to include any of the aforementioned rods, connecting plates, and supporting plates.

[0147] When the empty space is provided inside the filler, between a plurality of fillers, or between the filler and an independent component distinguished from the filler, the filler can be understood to include any one of the aforementioned rods, connecting plates, and support plates. The support member according to the present disclosure can include any one of the above examples or an example combining two or more examples.

[0148] refer to Figure 3a, as an embodiment, the support member may include a rod 31 and a connecting plate and a supporting plate 35. The connecting plate and the supporting plate may be designed separately. Figure 3 b. As an embodiment, the support member may include a rod 31, a connecting plate and a support plate 35, and a porous material 33 filled in the vacuum space.

[0149] The porous material 33 may have an emissivity greater than that of stainless steel as the material of the plate, but since the vacuum space is filled, the resistance efficiency of radiation heat transfer is high. The porous material may also be used as a thermal resistor to be described later. More preferably, the porous material may perform the function of an anti-radiation sheet to be described later. Figure 3 c. As an embodiment, the support member may include a porous material 33 or a filler 33. The porous material 33 and the filler may be arranged in a compressed state to maintain a gap between the vacuum spaces.

[0150] The film 34 may be provided in a perforated state, for example, a PE material. The porous material 33 or filler may perform both the function of a thermal resistor and the function of a support, which will be described later. More preferably, the porous material may perform both the function of a support and the function of an anti-radiation sheet, which will be described later.

[0151] Figure 4 It is an example for explaining a vacuum insulator based on thermal resistors 32, 33, 60 and 63 (e.g., a thermal insulator and a thermal resistor). The vacuum insulator according to the present disclosure may optionally include a thermal resistor. An example of a thermal resistor is as follows. The present disclosure may be any one of the following examples, or a combination of two or more examples.

[0152] The thermal resistors 32, 33, 60 and 63 may be objects that reduce the amount of heat transferred between the first space and the second space, or objects that reduce the amount of heat transferred between the first plate and the second plate. The thermal resistor may be arranged on a heat transfer path defined between the first space and the second space. The thermal resistor may be arranged on a heat transfer path formed between the first plate and the second plate. The thermal resistor may include a portion extending in the direction of a wall defining the vacuum space.

[0153] The thermal resistor may include a portion extending in the direction in which the plate extends. Optionally, the thermal resistor may include a portion extending from the plate in a direction away from the vacuum space. The thermal resistor may be disposed on at least a portion of the periphery of the first plate or the periphery of the second plate.

[0154] The thermal resistor may be arranged on at least a portion of an edge of the first plate or an edge of the second plate. The thermal resistor may be arranged at a portion defining a through hole. The thermal resistor may be arranged as a tube connected to the through hole. An independent tube or independent component different from the tube may be arranged within the tube.

[0155] Examples of the aforementioned pipes may be ports such as exhaust ports or getter ports. The thermal resistor may include a portion having a thermal resistance greater than the thermal resistance of the plate. In this case, the thermal insulation properties of the vacuum insulator may be further improved. A shield 62 may be provided outside the thermal resistor for isolation. The interior of the thermal resistor may be isolated by a vacuum space. The shield may be provided as a porous material or filler in contact with the interior of the thermal resistor.

[0156] The shield may be a thermally insulating structure, exemplified by a separate gasket placed outside the interior of the thermal resistor. The thermal resistor may be a wall defining the third space.

[0157] The example of the thermal resistor being connected to the board can be understood as replacing the support member with the thermal resistor in the example in which the support member is set to support the board. Repeated descriptions will be omitted. The example of the thermal resistor being connected to the support member can be understood as replacing the board with the support member in the example in which the thermal resistor is connected to the board. Repeated descriptions will be omitted. The example of reducing heat transfer via a heat transfer body can be used to replace the example of reducing heat transfer via a support member, and therefore, the same description will be omitted.

[0158] In the present disclosure, the thermal resistor may be one of the anti-radiation sheet 32, the porous material 33, the filler 33, and the anti-conduction sheet. In the present disclosure, the thermal resistor may include a combination of at least two of the anti-radiation sheet 32, the porous material 33, the filler 33, and the anti-conduction sheet. As a first example, the thermal resistor may include the anti-radiation sheet 32.

[0159] The anti-radiation sheet may include a portion having a thermal resistance greater than the thermal resistance of the board, and the thermal resistance may be a degree of blocking heat transfer by radiation. The support may together perform the function of the anti-radiation sheet. The anti-conduction sheet to be described later may together perform the function of the anti-radiation sheet. As a second example, the thermal resistor may include anti-conduction sheets 60 and 63.

[0160] The anti-conduction sheet may include a portion having a thermal resistance greater than the thermal resistance of the board, and the thermal resistance may be a degree of resistance to heat transfer by conduction. For example, the anti-conduction sheet may have a thickness less than the thickness of at least a portion of the board. As another example, the anti-conduction sheet may include one end and another end, and the length of the anti-conduction sheet may be greater than a straight line distance connecting one end of the anti-conduction sheet to the other end of the anti-conduction sheet.

[0161] As another example, the anti-conduction sheet may include a material having a greater resistance to heat transfer than the plate by conduction.As another example, the thermal resistor may include a portion having a radius of curvature less than the radius of curvature of the plate.

[0162] refer to Figure 4a, for example, an anti-conduction sheet may be provided on a side plate connecting the first plate to the second plate. Figure 4 b, for example, the anti-conduction sheet 60 may be provided on at least a portion of the first plate and the second plate. The connection frame 70 may be further provided outside the anti-conduction 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.

[0163] Optionally, the connection frame 70 may include a portion for connecting components for sealing the door and the body and components provided outside the vacuum space, such as an exhaust port and a suction port required for an exhaust process, to each other.

[0164] refer to Figure 4 c, for example, the anti-conduction sheet may be provided on a side plate connecting the first plate to the second plate. The anti-conduction sheet may be installed in a through hole passing through the vacuum space. The pipe 64 may be provided separately outside the anti-conduction sheet. The anti-conduction sheet may be provided in a pleated shape. In this way, the heat transfer path may be lengthened and deformation due to pressure difference may be prevented. A separate shield member for isolating the anti-conduction sheet 63 may also be provided. The anti-conduction sheet may include a portion having a lesser degree of deformation resistance than at least one of the plate, the anti-radiation sheet or the support. The anti-radiation sheet may include a portion having a lesser degree of deformation resistance than at least one of the plate or the support. The plate may include a portion having a lesser degree of deformation resistance than the support. The anti-conduction sheet may include a portion having a greater conduction thermal resistance than at least one of the plate, the anti-radiation sheet or the support. The anti-radiation sheet may include a portion having a greater radiation thermal resistance than at least one of the plate, the anti-conduction sheet or the support. The support may include a portion having a greater thermal resistance than the thermal resistance of the plate.

[0165] For example, at least one of the board, the anti-conduction sheet, or the connection frame may include a stainless steel material, the anti-radiation sheet may include aluminum, and the support may include a resin material.

[0166] Figure 5 It is a graph for observing the exhaust process inside the vacuum insulation body with time and pressure when the support is used. An example of the vacuum exhaust process of the vacuum insulation body is as follows. The present disclosure may be any one of the following examples, or a combination of two or more examples.

[0167] While the exhaust process is being performed, a deflation process may be performed, which is a process of exhausting gas from a vacuum space, or a process of exhausting latent gas remaining in a component of a vacuum insulation body. As an example of a deflation process, the exhaust process may include at least one of: heating or drying the vacuum insulation body, providing vacuum pressure to the vacuum insulation body, or providing a getter to the vacuum insulation body. In this case, evaporation and exhaust of latent gas remaining in a component provided in the vacuum space may be promoted. The exhaust process may include a process of cooling the vacuum insulation body. The cooling process may be performed after performing the process of heating or drying the vacuum insulation body. The process of heating or drying the vacuum insulation body and the process of providing vacuum pressure to the vacuum insulation body may be performed together.

[0168] The process of heating or drying the vacuum insulation body and the process of providing the getter to the vacuum insulation body may be performed together. The process of cooling the vacuum insulation body may be performed after the process of heating or drying the vacuum insulation body is performed. The process of providing the vacuum pressure to the vacuum insulation body and the process of providing the getter to the vacuum insulation body may be performed so as not to overlap with each other.

[0169] For example, a process of supplying a getter to the vacuum insulator may be performed after performing a process of supplying a vacuum pressure to the vacuum insulator. When the vacuum pressure is supplied to the vacuum insulator, the pressure of the vacuum space may drop to a certain level and then stop dropping. Here, after stopping the process of supplying the vacuum pressure to the vacuum insulator, the getter may be input. As an example of stopping the process of supplying the vacuum pressure to the vacuum insulator, the operation of a vacuum pump connected to the vacuum space may be stopped. When the getter is input, a process of heating or drying the vacuum insulator may be performed together. In this way, degassing may be promoted. As another example, after performing a process of supplying a getter to the vacuum insulator, a process of supplying a vacuum pressure to the vacuum insulator may be performed.

[0170] The time for performing the vacuum exhaust process of the vacuum insulation body can be referred to as the vacuum exhaust time. The vacuum exhaust time includes at least one of time Δ1, time Δt2 and time Δt3. During time Δ1, the process of heating or drying the vacuum insulation body is performed, during time Δt2, the process of keeping the getter in the vacuum insulation body is performed, and during time Δt3, the process of cooling the vacuum insulation body is performed. Examples of time 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. During the vacuum exhaust process of the vacuum insulation body, time Δt1 may be greater than or equal to time t1a and less than or equal to time t1b. As a first example, time t1a may be greater than or equal to approximately 0.2hr and less than or equal to approximately 0.5hr. Time t1b may be greater than or equal to approximately 1hr and less than or equal to approximately 24.0hr.

[0171] The time Δt1 may be greater than or equal to about 0.3 hr and less than or equal to about 12.0 hr. The time Δt1 may be greater than or equal to about 0.4 hr and less than or equal to about 8.0 hr. The time Δt1 may be greater than or equal to about 0.5 hr and less than or equal to about 4.0 hr. In this case, even if Δt1 is kept as short as possible, sufficient degassing can be applied to the vacuum insulation. For example, this case may include a case where a part of the vacuum insulation exposed to the vacuum space among multiple parts of the vacuum insulation has a degassing rate (%) that is less than the degassing rate of any part of the vacuum insulation exposed to the external space of the vacuum space. Specifically, the part exposed to the vacuum space may include a part having a degassing rate that is less than the degassing rate of the thermoplastic polymer.

[0172] More specifically, the support member or the anti-radiation sheet may be disposed in the vacuum space, and the outgassing rate of the support member may be less than the outgassing rate of the thermoplastic. As another example, this may include a case where a maximum operating temperature (°C) of a component of the vacuum insulation body exposed to the vacuum space among a plurality of components of the vacuum insulation body is greater than a maximum operating temperature of any component of the vacuum insulation body exposed to the external space of the vacuum space.

[0173] In this case, the vacuum insulation may be heated to a higher temperature to increase the 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, a support or an anti-radiation sheet may be disposed in the vacuum space and the use temperature of the support may be higher than that of the thermoplastic.

[0174] As another example, among the multiple components of the vacuum insulation body, the component exposed to the vacuum space may contain more metal parts than non-metal parts. That is, the mass of the metal part may be greater than the mass of the non-metal part, the volume of the metal part may be greater than the volume of the non-metal part, or the area of ​​the metal part exposed to the vacuum space may be greater than the area of ​​the non-metal part exposed to the vacuum space. When there are multiple components exposed to the vacuum space, the sum of the volume of the metal material contained in the first component and the volume of the metal material contained in the second component may be greater than the sum of the volume of the non-metal material contained in the first component and the volume of the non-metal material contained in the second component. When there are multiple components exposed to the vacuum space, the sum of the mass of the metal material contained in the first component and the mass of the metal material contained in the second component may be greater than the sum of the mass of the non-metal material contained in the first component and the mass of the non-metal material contained in the second component. When there are multiple components exposed to the vacuum space, the sum of the area of ​​the metal material contained in the first component and exposed to the vacuum space and the area of ​​the metal material contained in the second component and exposed to the vacuum space can be greater than the sum of the area of ​​the non-metallic material contained in the first component and exposed to the vacuum space and the area of ​​the non-metallic material contained in the second component and exposed to the vacuum space.

[0175] 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 greater than or equal to about 1.0 hr and less than or equal to about 48.0 hr. The time Δt1 may be greater than or equal to about 2 hr and less than or equal to about 24.0 hr. The time Δt1 may be greater than or equal to about 3 hr and less than or equal to about 12.0 hr.

[0176] In this case, the vacuum insulation body may need to maintain Δt1 as long as possible. In this case, the opposite case to the example described in the first example or the case in which the component exposed to the vacuum space is made of a thermoplastic material may be an example. Repeated descriptions will be omitted. During the vacuum exhaust of the vacuum insulation body, the time Δt1 may be greater than or equal to the time t1a and less than or equal to the time t1b. 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.

[0177] The time Δt2 may be greater than or equal to about 0.2 hr and less than or equal to about 3.0 hr. The time Δt2 may be greater than or equal to about 0.3 hr and less than or equal to about 2.0 hr. The time Δt2 may be greater than or equal to about 0.5 hr and less than or equal to about 1.5 hr. In this case, even if the time Δt2 is kept as short as possible, sufficient degassing by the getter can be applied to the vacuum insulation.

[0178] During the vacuum exhaust of the vacuum insulation body, the time Δt3 may be greater than or equal to the time t3a and less than or equal to the time t3b.

[0179] The time t3a may be greater than or equal to about 0.2 hr and less than or equal to about 0.8 hr. The time t3b may be greater than or equal to about 1 hr and less than or equal to about 65.0 hr. The time Δt3 may be greater than or equal to about 0.2 hr and less than or equal to about 48.0 hr. The time Δt3 may be greater than or equal to about 0.3 hr and less than or equal to about 24.0 hr. The time Δt3 may be greater than or equal to about 0.4 hr and less than or equal to about 12.0 hr. The time Δt3 may be greater than or equal to about 0.5 hr and less than or equal to about 5.0 hr. After performing the heating or drying process during the exhaust process, a cooling process may be performed.

[0180] For example, when the heating and / or drying process is performed for a long time, time Δt3 may be long. The vacuum insulator according to the present disclosure may be manufactured such that time Δt1 is greater than time Δt2, time Δt1 is less than or equal to time Δt3, or time Δt3 is greater than time Δt2.

[0181] The following relational expression is satisfied: Δt2<Δt1≤Δt3. The vacuum insulator 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, greater than or equal to about 1 hr and less than or equal to about 65 hr.

[0182] The vacuum insulator of the present invention can be manufactured so that the relationship expression Δt1+Δt2+Δt3 can be greater than or equal to about 2 hr and less than or equal to about 24 hr. More preferably, it can be manufactured so that the relationship expression Δt1+Δt2+Δt3 can be greater than or equal to about 3 hr and less than or equal to about 6 hr.

[0183] Examples of vacuum pressure conditions during the exhaust process are as follows. The present disclosure may be any one of the following examples, or a combination of two or more examples. The minimum value of the vacuum pressure in the vacuum space during the exhaust process may be greater than about 1.8E-6 Torr (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, greater than about 0.5E-6 Torr and less than or equal to about 1.0E-4 Torr, or 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.

[0184] As such, the minimum value of the vacuum pressure provided during the exhaust process is limited because, even if the pressure is reduced by the vacuum pump during the exhaust process, the reduction in the vacuum pressure is slowed down below a certain level.

[0185] As an embodiment, after the exhaust process is performed, the vacuum pressure of the vacuum space may be maintained at a pressure of 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, greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-2 Torr, greater than or equal to about 1.0E-4 Torr and less than or equal to about 1.0E-2 Torr, or 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 accelerated testing of two example products, one product may be set so that the vacuum pressure is maintained below about 1.0E-04 Torr even after about 16.3 years, and the other product is set so that the vacuum pressure is maintained below about 1.0E-04 Torr even after about 17.8 years.

[0186] As described above, the vacuum pressure of the vacuum insulation can be used industrially only if it remains below a predetermined level even if it varies with time.

[0187] Figure 5 a is a graph of time and pressure during exhaust according to one embodiment, and Figure 5 b is a view explaining the result of a vacuum retention test in an accelerated experiment of a vacuum insulator of a refrigerator having an internal volume of about 128 liters.

[0188] refer to Figure 5 b, it can be seen that the vacuum pressure gradually increases with 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. Based on these experimental results, it is confirmed that the vacuum insulation according to this embodiment can be fully used in industry.

[0189] Figure 6 is a graph showing the results obtained by comparing vacuum pressure and gas thermal conductivity. Figure 6, depending on the size of the gap in the vacuum space 50, the gas thermal conductivity is expressed as a graph of the effective heat transfer coefficient (eK) relative to the vacuum pressure. When the gap in the vacuum space 50 has three values ​​of about 3 mm, about 4.5 mm and about 9 mm, the effective heat transfer coefficient (eK) is measured. The gap in the vacuum space 50 is defined as follows. When there is an anti-radiation sheet 32 ​​in the surface vacuum space 50, the gap is the distance between the anti-radiation sheet 32 ​​and the plate adjacent thereto. When there is no anti-radiation sheet 32 ​​in the surface vacuum space 50, the gap is the distance between the first plate and the second plate. It can be seen that since the size of the gap is very small at a point corresponding to a typical effective heat transfer coefficient of about 0.0196 W / mK, where the typical effective heat transfer coefficient is provided to an insulating material formed by foaming polyurethane, even if the size of the gap is about 3 mm, the vacuum pressure is about 5.0E-1 Torr.

[0190] At the same time, it can be seen that even if the vacuum pressure decreases, the point at which the insulation effect caused by gas conduction heat is reduced and is saturated is the point at which the vacuum pressure is about 4.5E-3Torr. The vacuum pressure of about 4.5E-3Torr can be defined as the point at which the insulation effect caused by gas conduction heat is reduced and is saturated.

[0191] Moreover, when the effective heat transfer coefficient is about 0.01 W / mK, the vacuum pressure is about 1.2E-2 Torr. An example of the range of the vacuum pressure in the vacuum space according to the gap is shown. The support member may include at least one of a rod, a connecting 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 greater than about 2.65E-1 Torr and less than about 5E-1 Torr.

[0192] As another example, the support member may include at least one of a rod, a connecting plate, or a supporting 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 greater than about 1.2E-2 Torr and less than about 5E-1 Torr. As another example, the support member may include at least one of a rod, a connecting plate, or a supporting 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 1.0X10^-1 Torr, or greater than about 4.5E-3 Torr and less than about 5E-1 Torr.

[0193] Here, A may be greater than or equal to about 1.0Х10^-6Torr and less than or equal to about 1.0E-5Torr. A may be greater than or equal to about 1.0Х10^-5Torr and less than or equal to about 1.0E-4Torr. When the support member includes a porous material or filler, the vacuum pressure may be greater than or equal to about 4.7E-2Torr and less than or equal to about 5E-1Torr. In this case, it should be understood that the size of the gap ranges from several microns to hundreds of microns. When the support member and the porous material are arranged together in a vacuum space, a vacuum pressure can be generated and used, which is between the vacuum pressure when only the support member is used and the vacuum pressure when only the porous material is used.

[0194] Figure 7 It is a view for explaining the process of manufacturing the vacuum insulation body.

[0195] Optionally, the vacuum insulator may be manufactured by a vacuum insulator component manufacturing process in which the first plate and the second plate are prepared in advance. Optionally, the vacuum insulator may be manufactured by a vacuum insulator component assembly process in which the first plate and the second plate are assembled. Optionally, the vacuum insulator may be manufactured by a vacuum insulator vacuum exhaust process in which air in a space defined between the first plate and the second plate is exhausted. Optionally, after performing the vacuum insulator component manufacturing process, the vacuum insulator component assembly process or the vacuum insulator exhaust process may be performed.

[0196] Optionally, after performing the vacuum insulation body component assembly process, the vacuum insulation body vacuum exhaust process may be performed. Optionally, the vacuum insulation body may be manufactured by a vacuum insulation body component sealing process (S3) in which the space between the first plate and the second plate is sealed. The vacuum insulation body component sealing process may be performed before the vacuum insulation body vacuum exhaust process (S4). The vacuum insulation body may be manufactured as an object having a specific purpose by an equipment assembly process (S5) in which the vacuum insulation body is combined with a component for constructing an equipment. The equipment assembly process may be performed after the vacuum insulation body vacuum exhaust process.

[0197] Here, the components constituting the device refer to components constituting the device together with the vacuum insulation body.

[0198] The vacuum insulation component preparation process (S1) is a process of preparing or manufacturing components for constructing a vacuum insulation body. Examples of components for constructing a vacuum insulation body may include various components such as a plate, a support, a thermal resistor, and a tube. The vacuum insulation component assembly process (S2) is a process in which the prepared components are assembled. The vacuum insulation component assembly process may include a process of setting a thermal resistor and at least a portion of a support on at least a portion of a plate.

[0199] For example, the vacuum insulation component assembly process may include a process of disposing at least a portion of the thermal resistor and the support member between the first plate and the second plate. Optionally, the vacuum insulation component assembly process may include a process of disposing a penetration component on at least a portion of the plate. For example, the vacuum insulation component assembly process may include a process of disposing a penetration component or a surface component between the first plate and the second plate. After the penetration component may be disposed between the first plate and the second plate, the penetration component may be connected to or sealed to the penetration component coupling portion.

[0200] An example of vacuum exhaust process of vacuum insulation is as follows. The present disclosure may be any one example, or a combination of two or more examples. The vacuum exhaust process of vacuum insulation may include at least one of a process of inputting the vacuum insulation into the exhaust channel, a process of activating the getter, a process of detecting vacuum leakage, and a process of closing the exhaust port. The process of forming the connection portion may be performed in at least one of a vacuum insulation component preparation process, a vacuum insulation component assembly process, or an equipment assembly process. Before performing the vacuum insulation exhaust process, a process of cleaning the components that construct the vacuum insulation may be performed. Optionally, the cleaning process may include a process of applying ultrasonic waves to the components that construct the vacuum insulation, or a process of providing ethanol or a material containing ethanol to the surface of the components that construct the vacuum insulation. The ultrasonic wave may have an intensity between about 10kHz and about 50kHz. The content of ethanol in the material may be about 50% or more. For example, the content of ethanol in the material may range from about 50% to about 90%. As another example, the content of ethanol in the material may range from about 60% to about 80%.

[0201] As another example, the content of ethanol in the material may be in the range of about 65% to about 75%. Optionally, after performing the cleaning process, a process of drying the components constituting the vacuum insulation body may be performed. Optionally, after performing the cleaning process, a process of heating the components constituting the vacuum insulation body may be performed.

[0202] A heat exchanger may be provided in the vacuum insulation body. The following contents may be optional. The heat exchanger may connect the first space and the second space. The heat exchanger may perform heat exchange between the refrigerant discharged from the evaporator and the refrigerant sucked into the evaporator. At least a part of the heat exchanger may be placed in the third space.

[0203] The contents and descriptions disclosed in a certain figure of this article can provide different embodiments from each other. The contents disclosed in a certain figure of this article can be used as the contents of other figures.

[0204] Figure 8 An example in which a support member and a heat exchanger are provided is shown.

[0205] The following content may be optional. Figure 8 , the heat exchanger 57 can be arranged on the back side of the vacuum insulation body. The first end of the refrigerant tube constituting the heat exchanger can be led out to the machine room 8. The machine room can be placed in the second space. The second end of the refrigerant tube constituting the heat exchanger can be led out to the low-temperature space. The low-temperature space can be placed in the first space. The heat exchanger is provided in a specified length and can perform sufficient heat exchange. The heat exchanger can have a curved portion. The heat exchanger can have a straight portion extending along a straight line. At least two straight portions can be provided. A curved portion can be provided between the straight portions. At least one curved portion can be bent along the extension direction of the third space. At least one curved portion can be bent along the thickness direction of the third space.

[0206] The following content may be optional. The support member 30 placed on the back side of the vacuum insulation body may be provided as an integrated single structure. The single structure may be provided as a structure in which at least two independent unit bodies are combined with each other. The unit bodies 301 may be fastened in the up and down directions respectively. In the unit body 301, the lower unit body and the upper unit body may be fastened to each other in a staggered manner. Thus, the single structure may be provided. There may be left and right intervals on the left and right of the unit body. The bent portion may not be placed in the left and right intervals of each unit body. Thus, the positioning of the bent portion may be facilitated. Thus, the heat exchanger may be stably supported. In the case of having two bent portions, the two bent portions may be placed on the same unit body. The heat exchanger may pass through at least two unit bodies.

[0207] The following may be optional. The support may be provided in a grid structure. The heat exchanger may pass between the grids. The heat exchanger may be moved while being placed in the single structure. The heat exchanger may be placed on the plate while being placed in the single structure. The support may be formed of a PPS material. The support may be formed of a PPS material containing glass fiber.

[0208] Fig. 9 Embodiments of supports are presented. Fig. 9 (a) is an embodiment of providing an injection molding gate on a grid. Fig. 9 (b) is an embodiment in which the cross-sectional area of ​​the grid is formed differently. Fig. 9 (c) is an embodiment in which an additional grille is provided. Fig. 9 (d) is an embodiment in which no additional injection gate is provided. Fig. 9 (e) is an embodiment in which the cross-sectional area of ​​the injection channel is different. Fig. 9 .

[0209] The support member may be made by injection molding. The support member may be provided as a single structure by assembling at least two unit bodies. The following may be selectively applied. When the support member is injection molded, an injection gate 34 may be provided. The injection gate may be removed. The injection gate may be used as a support member without being removed. The injection gate 34 may include an injection rod 341 for injection of injection liquid. An injection base 343 may be included for diffusing the injection liquid injected by the injection rod to multiple locations. An injection flow path 342 for the injection liquid to flow may be provided on the injection base 343. The injection rod 341 may be provided in the same direction as the rod 31. The injection rod 341 may similarly perform the function of the rod 31. For example, the injection rod 341 may support the heat exchanger. For example, the injection rod 341 may maintain the vacuum space portion. For example, the injection rod 341 may strengthen the strength of the vacuum insulation body. The injection rod 31 may be provided on the grid of the support plate 35. The injection base 343 may be provided on the grid of the support plate 35. The injection base 343 may be provided larger than the width of the grid. The injection base 343 may protrude above the grid. The injection rods 31 may be provided on the grids extending in the same direction. The injection rods 31 may be provided on the grids extending in different directions.

[0210] The following contents may be selectively applied. The plurality of ribs constituting the grid may include at least two ribs with different widths. An injection gate may be provided on at least one rib. An injection gate may be provided on one of the support plates supporting the first plate and the second plate.

[0211] The following may be selectively applied. The injection flow path 342 may provide a grid. The injection flow path 342 may be provided with a larger cross-sectional area than the support plate. Thus, the fluidity of the injection liquid passing through the injection flow path may be improved. The width of the injection flow path 342 may be greater than the width of the grid. The thickness of the injection flow path 342 may be greater than the thickness of the grid.

[0212] The following may be selectively applied. The injection flow path 342 may be provided separately from the grid. The injection flow path 342 may further provide a second grid in addition to the first grid. The grid sizes of the first grid and the second grid may be different from each other. The injection flow path 342 may be provided along a direction.

[0213] The following contents may be selectively applied. The injection rod 341 may be provided at the same position as the position where the rod 31 is provided. The injection liquid may be injected through the rod 31. The injection base 343 may not be provided. The injection flow path 343 may be provided in the same manner as the grid.

[0214] Fig.10 It is a diagram for explaining an example of an injection gate. Fig.10 (a) is a diagram illustrating the functions of the injection gate and the anti-radiation sheet. Fig.10 (b) is a diagram illustrating the first function of the injection molding gate and port. Fig.10 (c) is a diagram illustrating the second function of the injection gate and port. Fig.10 .

[0215] The injection molding gate 34 may not be removed. The injection molding gate may be a required structure of the vacuum insulator. The following content may be selectively applied. The injection molding gate may support the anti-radiation sheet 32. The injection molding gate may be provided with resin. The heat of the anti-radiation sheet may not pass through the injection molding gate well. The injection molding gate may support at least any one side of the anti-radiation sheet. The injection molding gate may support both sides of the anti-radiation sheet. Due to the injection molding gate, the anti-radiation sheet may not move in the height direction of the vacuum space portion. The anti-radiation sheet may not move in the extension direction of the vacuum space portion due to at least one of the rod 31 and the injection molding gate.

[0216] The following ideas can be selectively applied. The injection molding gates provided on the support plates different from each other can be configured to not overlap each other along the height direction of the vacuum space portion. The support plates different from each other may include a first support plate adjacent to the first plate. The support plates different from each other may include a second support plate adjacent to the second plate. Due to the injection molding gate, the movement of at least a portion of the anti-radiation sheet can be restricted. The injection molding gates provided on the support plates different from each other can be configured to overlap each other along the height direction of the vacuum space portion. The anti-radiation sheet can be placed between the overlapping injection molding gates.

[0217] The following content can be selectively applied. The injection mold gate 34 can be aligned with the tube. The tube can be a port. A getter can be inserted into the port. The getter can be supported by being caught by the injection mold gate 34. If the getter moves freely inside the vacuum space portion, noise may be generated. The getter can accumulate in the internal space bounded by the injection mold gate and the port. The getter can be stored in the port. When the inner diameter of the port is set as R, the top diameter of the injection mold gate is set as r, the diameter of the getter is set as L, and the height of the getter is set as hfk, at least one of Mathematical Formula 1 and Mathematical Formula 2 can be satisfied. Mathematical Formula 1: (R - r) / 2 < L, Mathematical Formula 2: (R - r) / 2 < h. Due to satisfying the mathematical formula, the getter may not detach from the storage position. The radiation-resistant sheet can be removed at the position where the tube is provided. The centers of the tube and the injection mold gate can be made to coincide. When drawing the extension line of the tube, the centers of the injection mold gate and the extension line can coincide. When drawing the extension line of the tube, at least a part of the injection mold gate and the extension line can overlap. At least a part of the tube can be closer to the plate than other parts. At least a part of the tube can be in contact with the injection mold gate. The first part of the end of the tube can be close to the injection mold gate. The second part of the end of the tube, which is away from the first part, can be located at the position farthest from the injection mold gate.

[0218] The following content can be selectively applied. The through hole can be provided in at least one of the first plate and the second plate. It can include a tube connected to the through hole and capable of allowing an object to flow. A getter can be provided below the tube. Here, the lower part can be based on the direction of gravity. The injection mold gate and the through hole can overlap in the height direction of the vacuum space portion. The injection mold gate and the tube can overlap in the height direction of the vacuum space portion.

[0219] Fig.11 It is a diagram illustrating the shape of the injection mold gate of the embodiment. Fig.11 (a) is a partial perspective view of the internal structure of the vacuum insulator. Fig.11 (b) is a cross-sectional view of the internal structure of the vacuum insulator. Refer to Fig.11 .

[0220] In the injection mold gate, the injection side of the injection liquid can be smaller than the outlet side of the injection liquid. For example, the top of the injection mold gate can be smaller than the bottom of the injection mold gate. The following content can be selectively applied. There can be a storage space 34c between the two facing injection mold gates 34a and 34b. At least one of the radiation-resistant sheet and the getter can be stored. The rod is different from that passing through the radiation-resistant sheet. The injection mold gate can reduce radiant heat. The size Ae2 of the top of the injection mold gate 34 can be smaller than the size Ao2 of the bottom of the injection mold gate. The size Ae1 of the top of the rod 31 can be smaller than the size Ao1 of the bottom of the rod. The inclination angle A1 of the injection mold gate 34 can be greater than the inclination angle of the rod 31. The size of the injection mold gate can be larger than the size of the rod. The height of the injection mold gate can be smaller than the height of the rod. If the height of the rod is set as h and the thickness of the radiation-resistant sheet is set as t, the height x of the injection mold gate can satisfy ((h - t) / 2 - 1)mm < x < ((h - t) / 2)mm. The injection mold gate and the radiation-resistant sheet can be adjacent in an almost close manner. The injection mold gate can support the radiation-resistant sheet. The more radiation-resistant sheets, the better. Compared with the case of not using a radiation-resistant sheet, in the case of using one radiation-resistant sheet, the power consumption can be improved by about 40%. Compared with the case of using one radiation-resistant sheet, in the case of using two radiation-resistant sheets, the power consumption can be improved by about 4%. If more radiation-resistant sheets are used, the manufacturing cost increases, so it is not preferred.

[0221] Fig.12 It is a cross-sectional view of the support member of the embodiment. Fig.12 (a) is a diagram showing the position of the exemplary injection mold gate. Fig.12 (b) is an example of the support member. Refer to Fig.12 .

[0222] The injection mold gate 34a can be placed at the same position as the rod 31. The injection mold gate 34b can be placed on the opposite side of where the rod is placed. N1 and N2 represent the nozzles for injecting the injection liquid. If the injection mold gate is placed at the same position as the rod, the injection molded part can be easily taken out. For example, the push rod for pushing the injection molded part can be located on the side of the injection nozzle. In this case, if the rod and the injection mold gate are placed on opposite sides, the position of the push rod needs to be on both sides, so it is inconvenient. The rod can also be removed in this way. It is not excluded that the injection mold gate is placed on the opposite side of where the rod is placed.

[0223] The injection mold gate 34 can be provided on the side where the groove 31a of the support plate 35 is located. The rod 31 can be inserted into the groove 31a. The injection mold gate 34 can be placed between two adjacent grooves.

[0224] Fig.13This is an embodiment of the configuration relationship between the injection gate and the heat exchanger. Fig.13 (a) shows the relationship between the injection gate and the heat exchanger. Fig.13 (b) shows the relationship between the injection gate, the heat exchanger and the anti-radiation sheet. Fig.13 (c) is a diagram showing the support relationship of the injection gate. Fig.13 .

[0225] The heat exchanger 57 may not be configured in the internal space of the grid where the injection gate 34 is located. The grid may be a grid of a support plate. Since the heat transfer becomes too large, it is not preferred. The following may be optional. The injection gate and the heat exchanger may be placed in the internal space of adjacent grids that are different from each other. The injection gate may accurately fix the anti-radiation sheet. The injection gate may capture at least one of the peripheral portion and the central portion of at least one of the anti-radiation sheet or the unit body constituting the sheet. The injection gate may capture the end of the anti-radiation sheet. The injection gate may capture the end of the unit body constituting the anti-radiation sheet. The injection gate may be provided for two or more grids that are different from each other. At least one of the first support plate on the upper side and the second support plate on the lower side may provide an injection gate. The first support plate and the second support plate may be provided with a first injection gate and a second injection gate, respectively. In this case, the first injection gate and the second injection gate may face each other. In this case, the first injection gate and the second injection gate may not face each other. The first injection gate may support the top surface of the anti-radiation sheet. The second injection gate may support the bottom surface of the anti-radiation sheet. The top surface support position and the bottom surface support position of the anti-radiation sheet may be different positions from each other.

[0226] Fig.14 It is a diagram showing an example of an injection gate. Fig.14 (a) shows the case where there are four injection channels. Fig.14 (b) shows a case where a grid is an injection flow path or an injection base. Fig.14 (c) shows the case where there are 8 injection channels. Fig.14 .

[0227] The injection liquid in liquid phase can flow into the injection gate. The support member or the unit body of the support member has a large area in two dimensions. In order to allow the injection liquid to flow in with a large area, it is preferred that the flow path resistance is small. In order to reduce the flow path resistance, the number of injection paths may be more than two. In order to distribute the injection liquid equally, the injection paths may be provided in an even number. In order to distribute the injection liquid equally, the injection paths may be provided symmetrically. As an example, the injection paths may apply at least one of one, two, four and eight. The injection path may refer to a portion directly connected to an injection base. The injection path may diffuse from a single point. The injection path is an entire grid that may refer to any support member.

[0228] Industrial Applicability

[0229] According to the present invention, the reliability of the vacuum insulation body can be improved.

Claims

1. A vacuum insulator, wherein: include: A first plate having a temperature; a second plate having a second temperature different from the first temperature; a vacuum space portion formed between the first plate and the second plate; as well as A support member for maintaining the vacuum space portion; The support member is made by injection molding, and an injection molding gate is formed on the support member.

2. The vacuum insulation body according to claim 1, wherein: The support member includes a support plate having a portion extending in a length direction of the vacuum space portion, and the support plate includes a grid forming through holes.

3. The vacuum insulation body according to claim 2, wherein: The injection molding gate comprises: An injection rod, into which the injection liquid flows from the outside; The injection rod is disposed on at least one of a first grid on the support plate and a second grid extending in a direction different from the first grid; or The injection molding gate comprises: An injection rod, through which the injection liquid flows from the outside; and An injection flow path for the injection liquid to diffuse in multiple directions; The cross-sectional area of ​​the injection flow path is greater than or equal to the cross-sectional area of ​​the grid of the support plate; or The injection molding gate comprises: Injection rod, for injection liquid to flow in from the outside; An injection flow path for the injection liquid to diffuse in multiple directions; and An injection base, located between the injection rod and the injection flow path; The injection base includes a portion formed larger than a grid of the support plate.

4. The vacuum insulation body according to claim 1, wherein: The support member includes a plurality of rods, and the plurality of rods include portions extending in a height direction of the vacuum space portion; The plurality of rods are arranged at predetermined intervals.

5. The vacuum insulation body according to claim 4, wherein: The injection gate includes an injection rod, and the injection rod is used for injection liquid to flow in from the outside; The injection rod is provided in at least one of the positions where the plurality of rods are arranged; or The injection gate includes an injection rod, and the injection rod is used for injection liquid to flow in from the outside; The injection rod is provided in a manner compatible with at least one of the plurality of rods; or The injection gate includes an injection rod, and the injection rod is used for injection liquid to flow in from the outside; The injection rod is disposed on at least one of the imaginary lines connecting two adjacent rods among the plurality of rods; or The injection gate includes an injection rod, and the injection rod is used for injection liquid to flow in from the outside; The inclination angle of the injection rod of the injection gate is greater than the inclination angle of the rod of the support member.

6. The vacuum insulation body according to claim 1, wherein: The invention includes a tube provided on at least one of the first plate and the second plate.

7. The vacuum insulation body according to claim 6, wherein: The tube and the injection gate are arranged separately.

8. The vacuum insulation body according to claim 7, wherein: The support member comprises: A first rod including a portion extending in a height direction of the vacuum space portion; and a second rod spaced apart from the first rod by a specified interval; The injection gate is provided in a space formed between the first rod and the second rod; The tube is provided outside a space formed between the first rod and the second rod.

9. The vacuum insulation body according to claim 6, wherein: When an extension line is drawn along the extension direction of the tube, the extension line intersects the injection gate.

10. The vacuum thermal insulator according to claim 9, wherein: At least a portion of the tube is in contact with or supported by the injection gate.

11. The vacuum thermal insulator according to claim 9, wherein: A getter is disposed inside the tube, and at least a portion of the getter is in contact with or supported by the injection gate.

12. The vacuum insulation body according to claim 1, wherein: An anti-radiation sheet is included, which reduces radiative heat transfer of the vacuum space portion and includes a portion extending along a length direction of the vacuum space portion.

13. The vacuum insulation body according to claim 12, wherein: The injection gate is configured to contact the anti-radiation sheet or support the anti-radiation sheet; or The injection molding gate comprises: a first injection gate; and a second injection gate, arranged to be separated from and facing the first injection gate; The anti-radiation sheet is arranged between the first injection gate and the second injection gate.

14. The vacuum insulation body according to claim 1, wherein: A heat exchanger is included and is disposed inside the vacuum space.

15. The vacuum thermal insulator according to claim 20, wherein: The heat exchanger and the injection gate are arranged separately; or The heat exchanger and the injection gate are arranged separately, and the support member includes: a first rod including a portion extending in the height direction of the vacuum space portion; and a second rod configured to be separated from the first rod by a specified interval; the injection gate is provided in the space formed between the first rod and the second rod, and the heat exchanger is provided outside the space formed between the first rod and the second rod.

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