WO2022092924A1 - Procédé de fabrication d'un corps adiabatique sous vide - Google Patents

Procédé de fabrication d'un corps adiabatique sous vide Download PDF

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Publication number
WO2022092924A1
WO2022092924A1 PCT/KR2021/015490 KR2021015490W WO2022092924A1 WO 2022092924 A1 WO2022092924 A1 WO 2022092924A1 KR 2021015490 W KR2021015490 W KR 2021015490W WO 2022092924 A1 WO2022092924 A1 WO 2022092924A1
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WO
WIPO (PCT)
Prior art keywords
plate
vacuum
tube
adiabatic body
space
Prior art date
Application number
PCT/KR2021/015490
Other languages
English (en)
Inventor
Wonyeong Jung
Sungsub Lee
Jaehwan Lee
Original Assignee
Lg Electronics Inc.
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Filing date
Publication date
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Publication of WO2022092924A1 publication Critical patent/WO2022092924A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/003—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/026—Mattresses, mats, blankets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/063—Walls defining a cabinet formed by an assembly of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2509/00—Household appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2509/00—Household appliances
    • B32B2509/10—Refrigerators or refrigerating equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Definitions

  • the present disclosure relates to a method for manufacturing a vacuum adiabatic body.
  • a vacuum insulating wall may be provided to improve adiabatic performance.
  • a device of which at least a portion of an internal space is provided in a vacuum state to achieve an adiabatic effect is referred to as a vacuum adiabatic body.
  • the applicant has developed a technology to obtain a vacuum adiabatic body that is capable of being used in various devices and home appliances.
  • the applicant has proposed a technology for providing an exhaust port to discharge air inside a vacuum adiabatic body in Korean Patent Application No. 10-2015-01097235.
  • the present technology discloses a feature in which the exhaust port is provided on a first plate of the vacuum adiabatic body.
  • a preferred method for providing the exhaust port has not been disclosed.
  • Embodiments provide a method for exhausting air in a vacuum space or providing a tube required for a getter.
  • Embodiments also provide a method for providing a tube capable of improving reliability of pressure welding of the tube closed by the pressing welding.
  • Embodiments also provide a method for manufacturing a vacuum adiabatic body that allows a tube made of a first material, which is capable of being press-welded, and a heterometal having a second material of a plate suitable for a vacuum space to be bonded to each other.
  • Embodiments also provide a method for manufacturing a vacuum adiabatic body that prevents oxidation of an inner surface of a tube due to a high-temperature atmosphere in an exhaust process and a high-temperature atmosphere in a bonding process of the tube and the plate.
  • a vacuum adiabatic body may include a first plate, a second plate, and a seal that seals a gap between the first plate and the second plate.
  • the vacuum adiabatic body according to an embodiment may include a support that maintains a vacuum space.
  • the vacuum adiabatic body according to an embodiment may include a heat transfer resistor that reduces an amount of heat transfer between the first plate and the second plate.
  • the vacuum adiabatic body may include a component coupling portion connected to at least one of the first or second plate so that a component is coupled thereto. Accordingly, the vacuum adiabatic body capable of achieving the industrial purpose may be provided.
  • the method for manufacturing the vacuum adiabatic body may include a vacuum adiabatic body component preparation process in which components constituting the vacuum adiabatic body are prepared in advance.
  • the method for manufacturing the vacuum adiabatic body may include a vacuum adiabatic body component assembly process in which the prepared components are assembled.
  • the method for manufacturing the vacuum adiabatic body may include a vacuum adiabatic body vacuum exhaust process of discharging a gas of a vacuum space defined between a first plate and a second plate after the component assembly process.
  • a low-temperature block may be mounted on the tube. Accordingly, the manufacture of the vacuum adiabatic body may be more convenient.
  • the aforementioned tube may be ports such as an exhaust port or a getter port.
  • a through-hole may be defined in at least one of first and second plates.
  • a tube may be inserted into the through-hole.
  • brazing may be performed by mounting a filler metal on a contact portion between one end of the tube and the through-hole.
  • the method may include a process of exhausting a gas in a space defined between the first plate and the second plate.
  • sealing of the tube by press-welding the tube may be performed.
  • the tube may be bonded by the pressure welding. Accordingly, the vacuum adiabatic body may be more conveniently provided.
  • the aforementioned tube may be ports such as an exhaust port or a getter port.
  • An example of the foregoing tube may be a copper tube.
  • a piercing process of processing a hole in the first plate may be performed.
  • a burring process of processing a burr in the first plate may be performed.
  • a low-temperature block may be mounted on the other end of the tube during the blazing. Accordingly, the adverse effect of heat generated during the manufacturing process on the tube may be reduced.
  • a jig separation may be performend after the blazing.
  • an exhaust process may be performed after the blazing.
  • the method for manufacturing a vacuum adiabatic body may include the vacuum adiabatic body component assembly process.
  • a low-temperature block may be mounted on the tube. Accordingly, a temperature of the tube may be reduced. Accordingly, the adverse effect on the tube under a high-temperature manufacturing environment may be reduced.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the sealing performance of the inner surface of the tube and/or the outer surface of the tube may be improved to prevent the gas in the vacuum space from leaking due to the tube.
  • the inner surface of the tube may be maintained in a clean state to prevent poor pressure welding from occurring and also may achieve perfect bonding between atoms of the material forming the tube.
  • the surface denaturation of the tube affected by the high-frequency environment during the heterogeneous bonding of the tube and the plate may be prevented from occurring to improve the sealing reliability during the pressure welding of the tube.
  • the surface of the tube may be maintained in the relatively low temperature state.
  • the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the productivity of the vacuum adiabatic body may be improved.
  • Fig. 1 is a perspective view of a refrigerator according to an embodiment.
  • Fig. 2 is a view schematically illustrating a vacuum adiabatic body used in a main body and a door of the refrigerator.
  • Fig. 3 is a view illustrating an example of a support that maintains a vacuum space.
  • Fig. 4 is a view for explaining an example of the vacuum with respect to a heat transfer resistor.
  • Fig. 5 is a graph illustrating results obtained by observing a process of exhausting the inside of the vacuum adiabatic body with a time and pressure when the support is used.
  • Fig. 6 is a graph illustrating results obtained by comparing a vacuum pressure to gas conductivity.
  • Fig. 7 is a view illustrating various examples of the vacuum space.
  • Fig. 8 is a view for explaining another adiabatic body.
  • Fig. 9 is a view for explaining a heat transfer path between first and second plates having different temperatures.
  • Fig. 10 is a view for explaining a branch portion on the heat transfer path between first and second plates having different temperatures.
  • Fig. 11 is a view for explaining a method for manufacturing a vacuum adiabatic body.
  • Fig. 12 is an enlarged perspective view illustrating an upper side of a corner portion in which a tube is installed in the vacuum adiabatic body.
  • Fig. 13 is a view for explaining a method of processing a through-hole of the first plate.
  • Fig. 14 is a cross-sectional view taken along line 1-1' of Fig. 13b.
  • Fig. 15 illustrates an example in which a flange extends toward the outside of the vacuum space.
  • Fig. 16 is a view explaining a process of forming the vacuum space.
  • Fig. 17 is a view for explaining a piercing process.
  • Fig. 18 is a view for explaining a burring process.
  • Fig. 19 is a view illustrating a state in which a filler metal is installed.
  • Fig. 20 is a schematic view illustrating a state in which a low-temperature block is mounted.
  • Fig. 21 is a view illustrating a state in which brazing is performed.
  • Fig. 22 is a view illustrating a state in which the filler metal is melted.
  • Fig. 23 is a view for explaining an exhaust process.
  • Fig. 24 is a view for explaining a pinch-off process.
  • the present disclosure relates to a vacuum adiabatic body including a first plate; a second plate; a vacuum space defined between the first and second plates; and a seal providing the vacuum space that is in a vacuum state.
  • the vacuum space may be a space in a vacuum state provided in an internal space between the first plate and the second plate.
  • the seal may seal the first plate and the second plate to provide the internal space provided in the vacuum state.
  • the vacuum adiabatic body may optionally include a side plate connecting the first plate to the second plate.
  • the expression "plate” may mean at least one of the first and second plates or the side plate. At least a portion of the first and second plates and the side plate may be integrally provided, or at least portions may be sealed to each other.
  • the vacuum adiabatic body may include a support that maintains the vacuum space.
  • the vacuum adiabatic body may selectively include a thermal insulator that reduces an amount of heat transfer between a first space provided in vicinity of the first plate and a second space provided in vicinity of the second plate or reduces an amount of heat transfer between the first plate and the second plate.
  • the vacuum adiabatic body may include a component coupling portion provided on at least a portion of the plate.
  • the vacuum adiabatic body may include another adiabatic body. Another adiabatic body may be provided to be connected to the vacuum adiabatic body.
  • Another adiabatic body may be an adiabatic body having a degree of vacuum, which is equal to or different from a degree of vacuum of the vacuum adiabatic body.
  • Another adiabatic body may be an adiabatic body that does not include a degree of vacuum less than that of the vacuum adiabatic body or a portion that is in a vacuum state therein. In this case, it may be advantageous to connect another object to another adiabatic body.
  • a direction along a wall defining the vacuum space may include a longitudinal direction of the vacuum space and a height direction of the vacuum space.
  • the height direction of the vacuum space may be defined as any one direction among virtual lines connecting the first space to the second space to be described later while passing through the vacuum space.
  • the longitudinal direction of the vacuum space may be defined as a direction perpendicular to the set height direction of the vacuum space.
  • that an object A is connected to an object B means that at least a portion of the object A and at least a portion of the object B are directly connected to each other, or that at least a portion of the object A and at least a portion of the object B are connected to each other through an intermedium interposed between the objects A and B.
  • the intermedium may be provided on at least one of the object A or the object B.
  • the connection may include that the object A is connected to the intermedium, and the intermedium is connected to the object B.
  • a portion of the intermedium may include a portion connected to either one of the object A and the object B.
  • the other portion of the intermedium may include a portion connected to the other of the object A and the object B.
  • the connection of the object A to the object B may include that the object A and the object B are integrally prepared in a shape connected in the above-described manner.
  • an embodiment of the connection may be support, combine, or a seal, which will be described later.
  • that the object A is supported by the object B means that the object A is restricted in movement by the object B in one or more of the +X, -X, +Y, -Y, +Z, and -Z axis directions.
  • an embodiment of the support may be the combine or seal, which will be described later.
  • that the object A is combined with the object B may define that the object A is restricted in movement by the object B in one or more of the X, Y, and Z-axis directions.
  • an embodiment of the combining may be the sealing to be described later.
  • the object A is sealed to the object B may define a state in which movement of a fluid is not allowed at the portion at which the object A and the object B are connected.
  • one or more objects i.e., at least a portion of the object A and the object B, may be defined as including a portion of the object A, the whole of the object A, a portion of the object B, the whole of the object B, a portion of the object A and a portion of the object B, a portion of the object A and the whole of the object B, the whole of the object A and a portion of the object B, and the whole of the object A and the whole of the object B.
  • a central portion of the object may be defined as a central portion among three divided portions when the object is divided into three sections based on the longitudinal direction of the object.
  • a periphery of the object may be defined as a portion disposed at a left or right side of the central portion among the three divided portions.
  • the periphery of the object may include a surface that is in contact with the central portion and a surface opposite thereto.
  • the opposite side may be defined as a border or edge of the object.
  • Examples of the object may include a vacuum adiabatic body, a plate, a heat transfer resistor, a support, a vacuum space, and various components to be introduced in the present disclosure.
  • a degree of heat transfer resistance may indicate a degree to which an object resists heat transfer and may be defined as a value determined by a shape including a thickness of the object, a material of the object, and a processing method of the object.
  • the degree of the heat transfer resistance may be defined as the sum of a degree of conduction resistance, a degree of radiation resistance, and a degree of convection resistance.
  • the vacuum adiabatic body according to the present disclosure may include a heat transfer path defined between spaces having different temperatures, or a heat transfer path defined between plates having different temperatures.
  • the vacuum adiabatic body according to the present disclosure may include a heat transfer path through which cold is transferred from a low-temperature plate to a high-temperature plate.
  • the curved portion when a curved portion includes a first portion extending in a first direction and a second portion extending in a second direction different from the first direction, the curved portion may be defined as a portion that connects the first portion to the second portion (including 90 degrees).
  • the vacuum adiabatic body may optionally include a component coupling portion.
  • the component coupling portion may be defined as a portion provided on the plate to which components are connected to each other.
  • the component connected to the plate may be defined as a penetration portion disposed to pass through at least a portion of the plate and a surface component disposed to be connected to a surface of at least a portion of the plate. At least one of the penetration component or the surface component may be connected to the component coupling portion.
  • the penetration component may be a component that defines a path through which a fluid (electricity, refrigerant, water, air, etc.) passes mainly.
  • the fluid is defined as any kind of flowing material.
  • the fluid includes moving solids, liquids, gases, and electricity.
  • the component may be a component that defines a path through which a refrigerant for heat exchange passes, such as a suction line heat exchanger (SLHX) or a refrigerant tube.
  • the component may be an electric wire that supplies electricity to an apparatus.
  • the component may be a component that defines a path through which air passes, such as a cold duct, a hot air duct, and an exhaust port.
  • the component may be a path through which a fluid such as coolant, hot water, ice, and defrost water pass.
  • the surface component may include at least one of a peripheral adiabatic body, a side panel, injected foam, a pre-prepared resin, a hinge, a latch, a basket, a drawer, a shelf, a light, a sensor, an evaporator, a front decor, a hotline, a heater, an exterior cover, or another adiabatic body.
  • the present disclosure may include an apparatus having the vacuum adiabatic body.
  • the apparatus may include an appliance.
  • the appliance may include home appliances including a refrigerator, a cooking appliance, a washing machine, a dishwasher, and an air conditioner, etc.
  • the vacuum adiabatic body may constitute at least a portion of a body and a door of the apparatus.
  • the vacuum adiabatic body may constitute at least a portion of a general door and a door-in-door (DID) that is in direct contact with the body.
  • the door-in-door may mean a small door placed inside the general door.
  • the present disclosure may include a wall having the vacuum adiabatic body. Examples of the wall may include a wall of a building, which includes a window.
  • the first plate constituting the vacuum adiabatic body has a portion corresponding to the first space throughout all embodiments and is indicated by reference number 10.
  • the first plate may have the same number for all embodiments and may have a portion corresponding to the first space, but the shape of the first plate may be different in each embodiment.
  • the first plate, but also the side plate, the second plate, and another adiabatic body may be understood as well.
  • FIG. 1 is a perspective view of a refrigerator according to an embodiment
  • FIG. 2 is a schematic view illustrating a vacuum adiabatic body used for a body and a door of the refrigerator.
  • the refrigerator 1 includes a main body 2 provided with a cavity 9 capable of storing storage goods and a door 3 provided to open and close the main body 2.
  • the door 3 may be rotatably or slidably disposed to open or close the cavity 9.
  • the cavity 9 may provide at least one of a refrigerating compartment and a freezing compartment.
  • a cold source that supplies cold to the cavity may be provided.
  • the cold source may be an evaporator 7 that evaporates the refrigerant to take heat.
  • the evaporator 7 may be connected to a compressor 4 that compresses the refrigerant evaporated to the cold source.
  • the evaporator 7 may be connected to a condenser 5 that condenses the compressed refrigerant to the cold source.
  • the evaporator 7 may be connected to an expander 6 that expands the refrigerant condensed in the cold source.
  • a fan corresponding to the evaporator and the condenser may be provided to promote heat exchange.
  • the cold source may be a heat absorption surface of a thermoelectric element.
  • a heat absorption sink may be connected to the heat absorption surface of the thermoelectric element.
  • a heat sink may be connected to a heat radiation surface of the thermoelectric element.
  • a fan corresponding to the heat absorption surface and the heat generation surface may be provided to promote heat exchange.
  • plates 10, 15, and 20 may be walls defining the vacuum space.
  • the plates may be walls that partition the vacuum space from an external space of the vacuum space.
  • An example of the plates is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the plate may be provided as one portion or may be provided to include at least two portions connected to each other.
  • the plate may include at least two portions connected to each other in a direction along a wall defining the vacuum space. Any one of the two portions may include a portion (e.g., a first portion) defining the vacuum space.
  • the first portion may be a single portion or may include at least two portions that are sealed to each other.
  • the other one of the two portions may include a portion (e.g., a second portion) extending from the first portion of the first plate in a direction away from the vacuum space or extending in an inner direction of the vacuum space.
  • the plate may include at least two layers connected to each other in a thickness direction of the plate.
  • any one of the two layers may include a layer (e.g., the first portion) defining the vacuum space.
  • the other one of the two layers may include a portion (e.g., the second portion) provided in an external space (e.g., a first space and a second space) of the vacuum space.
  • the second portion may be defined as an outer cover of the plate.
  • the other one of the two layers may include a portion (e.g., the second portion) provided in the vacuum space.
  • the second portion may be defined as an inner cover of the plate.
  • the plate may include a first plate 10 and a second plate 20.
  • One surface of the first plate (the inner surface of the first plate) provides a wall defining the vacuum space, and the other surface (the outer surface of the first plate) of the first plate
  • a wall defining the first space may be provided.
  • the first space may be a space provided in the vicinity of the first plate, a space defined by the apparatus, or an internal space of the apparatus.
  • the first plate may be referred to as an inner case.
  • the first plate and the additional member define the internal space
  • the first plate and the additional member may be referred to as an inner case.
  • the inner case may include two or more layers. In this case, one of the plurality of layers may be referred to as an inner panel.
  • the second space may be a space provided in vicinity of the second plate, another space defined by the apparatus, or an external space of the apparatus.
  • the second plate may be referred to as an outer case.
  • the second plate and the additional member define the external space
  • the second plate and the additional member may be referred to as an outer case.
  • the outer case may include two or more layers. In this case, one of the plurality of layers may be referred to as an outer panel.
  • the second space may be a space having a temperature higher than that of the first space or a space having a temperature lower than that of the first space.
  • the plate may include a side plate 15.
  • the side plate may also perform a function of a conductive resistance sheet 60 to be described later, according to the disposition of the side plate.
  • the side plate may include a portion extending in a height direction of a space defined between the first plate and the second plate or a portion extending in a height direction of the vacuum space.
  • One surface of the side plate may provide a wall defining the vacuum space, and the other surface of the side plate may provide a wall defining an external space of the vacuum space.
  • the external space of the vacuum space may be at least one of the first space or the second space or a space in which another adiabatic body to be described later is disposed.
  • the side plate may be integrally provided by extending at least one of the first plate or the second plate or a separate component connected to at least one of the first plate or the second plate.
  • the plate may optionally include a curved portion.
  • the plate including a curved portion may be referred to as a bent plate.
  • the curved portion may include at least one of the first plate, the second plate, the side plate, between the first plate and the second plate, between the first plate and the side plate, or between the second plate and the side plate.
  • the plate may include at least one of a first curved portion or a second curved portion, an example of which is as follows.
  • the side plate may include the first curved portion.
  • a portion of the first curved portion may include a portion connected to the first plate.
  • Another portion of the first curved portion may include a portion connected to the second curved portion.
  • a curvature radius of each of the first curved portion and the second curved portion may be large.
  • the other portion of the first curved portion may be connected to an additional straight portion or an additional curved portion, which are provided between the first curved portion and the second curved portion.
  • a curvature radius of each of the first curved portion and the second curved portion may be small.
  • the side plate may include the second curved portion.
  • a portion of the second curved portion may include a portion connected to the second plate.
  • the other portion of the second curved portion may include a portion connected to the first curved portion. In this case, a curvature radius of each of the first curved portion and the second curved portion may be large.
  • the other portion of the second curved portion may be connected to an additional straight portion or an additional curved portion, which are provided between the first curved portion and the second curved portion.
  • a curvature radius of each of the first curved portion and the second curved portion may be small.
  • the straight portion may be defined as a portion having a curvature radius greater than that of the curved portion.
  • the straight portion may be understood as a portion having a perfect plane or a curvature radius greater than that of the curved portion.
  • the first plate may include the first curved portion.
  • a portion of the first curved portion may include a portion connected to the side plate.
  • a portion connected to the side plate may be provided at a position that is away from the second plate at a portion at which the first plate extends in the longitudinal direction of the vacuum space.
  • the second plate may include the second curved portion.
  • a portion of the second curved portion may include a portion connected to the side plate.
  • a portion connected to the side plate may be provided at a position that is away from the first plate at a portion at which the second plate extends in the longitudinal direction of the vacuum space.
  • the present disclosure may include a combination of any one of the first and second examples described above and any one of the third and fourth examples described above.
  • 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.
  • the expression that a vacuum degree of A is higher than that of B means that a vacuum pressure of A is lower than that of B.
  • the seal 61 may be a portion provided between the first plate and the second plate.
  • the sealing may include fusion welding for coupling the plurality of objects by melting at least a portion of the plurality of objects.
  • the first plate and the second plate may be welded by laser welding in a state in which a melting bond such as a filler metal is not interposed therebetween, a portion of the first and second plates and a portion of the component coupling portion may be welded by high-frequency brazing or the like, or a plurality of objects may be welded by a melting bond that generates heat.
  • the sealing may include pressure welding for coupling the plurality of objects by a mechanical pressure applied to at least a portion of the plurality of objects.
  • a mechanical pressure applied to at least a portion of the plurality of objects For example, as a component connected to the component coupling portion, an object made of a material having a degree of deformation resistance less than that of the plate may be pressure-welded by a method such as pinch-off.
  • a machine room 8 may be optionally provided outside the vacuum adiabatic body.
  • the machine room may be defined as a space in which components connected to the cold source are accommodated.
  • the vacuum adiabatic body may include a port 40.
  • the port may be provided at any one side of the vacuum adiabatic body to discharge air of the vacuum space 50.
  • the vacuum adiabatic body may include a conduit 64 passing through the vacuum space 50 to install components connected to the first space and the second space.
  • Fig. 3 is a view illustrating an example of a support that maintains the vacuum space.
  • An example of the support is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the supports 30, 31, 33, and 35 may be provided to support at least a portion of the plate and a heat transfer resistor to be described later, thereby reducing deformation of at least some of the vacuum space 50, the plate, and the heat transfer resistor to be described later due to external force.
  • the external force may include at least one of a vacuum pressure or external force excluding the vacuum pressure.
  • the support When the deformation occurs in a direction in which a height of the vacuum space is lower, the support may reduce an increase in at least one of radiant heat conduction, gas heat conduction, surface heat conduction, or support heat conduction, which will be described later.
  • the support may be an object provided to maintain a gap between the first plate and the second plate or an object provided to support the heat transfer resistor.
  • the support may have a degree of deformation resistance greater than that of the plate or be provided to a portion having weak degree of deformation resistance among portions constituting the vacuum adiabatic body, the apparatus having the vacuum adiabatic body, and the wall having the vacuum adiabatic body.
  • a degree of deformation resistance represents a degree to which an object resists deformation due to external force applied to the object and is a value determined by a shape including a thickness of the object, a material of the object, a processing method of the object, and the like.
  • Examples of the portions having the weak degree of deformation resistance include the vicinity of the curved portion defined by the plate, at least a portion of the curved portion, the vicinity of an opening defined in the body of the apparatus, which is provided by the plate, or at least a portion of the opening.
  • the support may be disposed to surround at least a portion of the curved portion or the opening or may be provided to correspond to the shape of the curved portion or the opening. However, it is not excluded that the support is provided in other portions.
  • the opening may be understood as a portion of the apparatus including the body and the door capable of opening or closing the opening defined in the body.
  • the support is provided to support the plate.
  • the plate may include a portion including a plurality of layers, and the support may be provided between the plurality of layers.
  • the support may be provided to be connected to at least a portion of the plurality of layers or be provided to support at least a portion of the plurality of layers.
  • at least a portion of the support may be provided to be connected to a surface defined on the outside of the plate.
  • the support may be provided in the vacuum space or an external space of the vacuum space.
  • the plate may include a plurality of layers, and the support may be provided as any one of the plurality of layers.
  • the support may be provided to support the other one of the plurality of layers.
  • the plate may include a plurality of portions extending in the longitudinal direction, and the support may be provided as any one of the plurality of portions.
  • the support may be provided to support the other one of the plurality of parts.
  • the support may be provided in the vacuum space or the external space of the vacuum space as a separate component, which is distinguished from the plate.
  • the support may be provided to support at least a portion of a surface defined on the outside of the plate.
  • the support may be provided to support one surface of the first plate and one surface of the second plate, and one surface of the first plate and one surface of the second plate may be provided to face each other.
  • the support may be provided to be integrated with the plate. An example in which the support is provided to support the heat transfer resistor may be understood instead of the example in which the support is provided to support the plate. A duplicated description will be omitted.
  • An example of the support in which heat transfer through the support is designed to be reduced is as follows. First, at least a portion of the components disposed in the vicinity of the support may be provided so as not to be in contact with the support or provided in an empty space provided by the support. Examples of the components include a tube or component connected to the heat transfer resistor to be described later, an exhaust port, a getter port, a tube or component passing through the vacuum space, or a tube or component of which at least a portion is disposed in the vacuum space. Examples of the empty space may include an empty space provided in the support, an empty space provided between the plurality of supports, and an empty space provided between the support and a separate component that is distinguished from the support.
  • the component may be disposed in a through-hole defined in the support, be disposed between the plurality of bars, be disposed between the plurality of connection plates, or be disposed between the plurality of support plates.
  • at least a portion of the component may be disposed in a spaced space between the plurality bars, be disposed in a spaced space between the plurality of connection plates, or be disposed in a spaced space between the plurality of support plates.
  • the adiabatic body may be provided on at least a portion of the support or in the vicinity of at least a portion of the support. The adiabatic body may be provided to be in contact with the support or provided so as not to be in contact with the support.
  • the adiabatic body may be provided at a portion in which the support and the plate are in contact with each other.
  • the adiabatic body may be provided on at least a portion of one surface and the other surface of the support or be provided to cover at least a portion of one surface and the other surface of the support.
  • the adiabatic body may be provided on at least a portion of a periphery of one surface and a periphery of the other surface of the support or be provided to cover at least a portion of a periphery of one surface and a periphery of the other surface of the support.
  • the support may include a plurality of bars, and the adiabatic body may be disposed on an area from a point at which any one of the plurality of bars is disposed to a midpoint between the one bar and the surrounding bars.
  • a heat source may be disposed at a position at which the heat adiabatic body described in the second example is disposed.
  • the heat source may be disposed on the second plate or in the vicinity of the second plate.
  • a cold source may be disposed at a position at which the heat adiabatic body described in the second example is disposed.
  • the cold source may be disposed on the second plate or in the vicinity of the second plate.
  • the support may include a portion having heat transfer resistance higher than a metal or a portion having heat transfer resistance higher than the plate.
  • the support may include a portion having heat transfer resistance less than that of another adiabatic body.
  • the support may include at least one of a non-metal material, PPS, and glass fiber (GF), low outgassing PC, PPS, or LCP. This is done for a reason in which high compressive strength, low outgassing, and a water absorption rate, low thermal conductivity, high compressive strength at a high temperature, and excellent workability are being capable of obtained.
  • the support may be the bars 30 and 31, the connection plate 35, the support plate 35, a porous material 33, and a filler 33.
  • the support may include any one of the above examples, or an example in which at least two examples are combined.
  • the support may include bars 30 and 31.
  • the bar may include a portion extending in a direction in which the first plate and the second plate are connected to each other to support a gap between the first plate and the second plate.
  • the bar may include a portion extending in a height direction of the vacuum space and a portion extending in a direction that is substantially perpendicular to the direction in which the plate extends.
  • the bar may be provided to support only one of the first plate and the second plate or may be provided both the first plate and the second plate.
  • one surface of the bar may be provided to support a portion of the plate, and the other surface of the bar may be provided so as not to be in contact with the other portion of the plate.
  • one surface of the bar may be provided to support at least a portion of the plate, and the other surface of the bar may be provided to support the other portion of the plate.
  • the support may include a bar having an empty space therein or a plurality of bars, and an empty space are provided between the plurality of bars.
  • the support may include a bar, and the bar may be disposed to provide an empty space between the bar and a separate component that is distinguished from the bar.
  • the support may selectively include a connection plate 35 including a portion connected to the bar or a portion connecting the plurality of bars to each other.
  • connection plate may include a portion extending in the longitudinal direction of the vacuum space or a portion extending in the direction in which the plate extends.
  • An XZ-plane cross-sectional area of the connection plate may be greater than an XZ-plane cross-sectional area of the bar.
  • the connection plate may be provided on at least one of one surface and the other surface of the bar or may be provided between one surface and the other surface of the bar. At least one of one surface and the other surface of the bar may be a surface on which the bar supports the plate.
  • the shape of the connection plate is not limited.
  • the support may include a connection plate having an empty space therein or a plurality of connection plates, and an empty space are provided between the plurality of connection plates.
  • the support may include a connection plate, and the connection plate may be disposed to provide an empty space between the connection plate and a separate component that is distinguished from the connection plate.
  • the support may include a support plate 35.
  • the support plate may include a portion extending in the longitudinal direction of the vacuum space or a portion extending in the direction in which the plate extends.
  • the support plate may be provided to support only one of the first plate and the second plate or may be provided both the first plate and the second plate.
  • one surface of the support plate may be provided to support a portion of the plate, and the other surface of the support plate may be provided so as not to be in contact with the other portion of the plate.
  • the support may include a support plate having an empty space therein or a plurality of support plates, and an empty space are provided between the plurality of support plates.
  • the support may include a support plate, and the support plate may be disposed to provide an empty space between the support plate and a separate component that is distinguished from the support plate.
  • the support may include a porous material 33 or a filler 33. The inside of the vacuum space may be supported by the porous material or the filler.
  • the inside of the vacuum space may be completely filled by the porous material or the filler.
  • the support may include a plurality of porous materials or a plurality of fillers, and the plurality of porous materials or the plurality of fillers may be disposed to be in contact with each other.
  • the porous material may be understood as including any one of the aforementioned bar, connection plate, and support plate.
  • the filler When an empty space is provided inside the filler, provided between the plurality of fillers, or provided between the filler and a separate component that is distinguished from the filler, the filler may be understood as including any one of the aforementioned bar, connection plate, and support plate.
  • the support according to the present disclosure may include any one of the above examples or an example in which two or more examples are combined.
  • the support may include a bar 31 and a connection plate and support plate 35.
  • the connection plate and the supporting plate may be designed separately.
  • the support may include a bar 31, a connection plate and support plate 35, and a porous material 33 filled in the vacuum space.
  • the porous material 33 may have emissivity greater than that of stainless steel, which is a material of the plate, but since the vacuum space is filled, resistance efficiency of radiant heat transfer is high.
  • the porous material may also function as a heat transfer resistor to be described later. More preferably, the porous material may perform a function of a radiation resistance sheet to be described later. Referring to Fig.
  • the support may include a porous material 33 or a filler 33.
  • the porous material 33 and the filler may be provided in a compressed state to maintain a gap between the vacuum space.
  • the film 34 may be provided in a state in which a hole is punched as, for example, a PE material.
  • the porous material 33 or the filler may perform both a function of the heat transfer resistor and a function of the support, which will be described later. More preferably, the porous material may perform both a function of the radiation resistance sheet and a function of the support to be described later.
  • Fig. 4 is a view for explaining an example of the vacuum adiabatic body based on heat transfer resistors 32, 33, 60, and 63 (e.g., thermal insulator and a heat transfer resistance body).
  • the vacuum adiabatic body according to the present disclosure may optionally include a heat transfer resistor.
  • An example of the heat transfer resistor is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.
  • the heat transfer resistors 32, 33, 60, and 63 may be objects that reduce an amount of heat transfer between the first space and the second space or objects that reduce an amount of heat transfer between the first plate and the second plate.
  • the heat transfer resistor may be disposed on a heat transfer path defined between the first space and the second space or be disposed on a heat transfer path formed between the first plate and the second plate.
  • the heat transfer resistor may include a portion extending in a direction along a wall defining the vacuum space or a portion extending in a direction in which the plate extends.
  • the heat transfer resistor may include a portion extending from the plate in a direction away from the vacuum space.
  • the heat transfer resistor may be provided on at least a portion of the periphery of the first plate or the periphery of the second plate or be provided on at least a portion of an edge of the first plate or an edge of the second plate.
  • the heat transfer resistor may be provided at a portion, in which the through-hole is defined, or provided as a tube connected to the through-hole.
  • a separate tube or a separate component that is distinguished from the tube may be disposed inside the tube.
  • the heat transfer resistor may include a portion having heat transfer resistance greater than that of the plate. In this case, adiabatic performance of the vacuum adiabatic body may be further improved.
  • a shield 62 may be provided on the outside of the heat transfer resistor to be insulated.
  • the inside of the heat transfer resistor may be insulated by the vacuum space.
  • the shield may be provided as a porous material or a filler that is in contact with the inside of the heat transfer resistor.
  • the shield may be an adiabatic structure that is exemplified by a separate gasket placed outside the inside of the heat transfer resistor.
  • the heat transfer resistor may be a wall defining the third space.
  • An example in which the heat transfer resistor is connected to the plate may be understood as replacing the support with the heat transfer resistor in an example in which the support is provided to support the plate. A duplicate description will be omitted.
  • the example in which the heat transfer resistor is connected to the support may be understood as replacing the plate with the support in the example in which the heat transfer resistor is connected to the plate. A duplicate description will be omitted.
  • the example of reducing heat transfer via the heat transfer body may be applied as a substitute the example of reducing the heat transfer via the support, and thus, the same explanation will be omitted.
  • the heat transfer resistor may be one of a radiation resistance sheet 32, a porous material 33, a filler 33, and a conductive resistance sheet.
  • the heat transfer resistor may include a combination of at least two of the radiation resistance sheet 32, the porous material 33, the filler 33, and the conductive resistance sheet.
  • the heat transfer resistor may include a radiation resistance sheet 32.
  • the radiation resistance sheet may include a portion having heat transfer resistance greater than that of the plate, and the heat transfer resistance may be a degree of resistance to heat transfer by radiation.
  • the support may perform a function of the radiation resistance sheet together.
  • a conductive resistance sheet to be described later may perform the function of the radiation resistance sheet together.
  • the heat transfer resistor may include conduction resistance sheets 60 and 63.
  • the conductive resistance sheet may include a portion having heat transfer resistance greater than that of the plate, and the heat transfer resistance may be a degree of resistance to heat transfer by conduction.
  • the conductive resistance sheet may have a thickness less than that of at least a portion of the plate.
  • the conductive resistance sheet may include one end and the other end, and a length of the conductive resistance sheet may be longer than a straight distance connecting one end of the conductive resistance sheet to the other end of the conductive resistance sheet.
  • the conductive resistance sheet may include a material having resistance to heat transfer greater than that of the plate by conduction.
  • the heat transfer resistor may include a portion having a curvature radius less than that of the plate.
  • a conductive resistance sheet may be provided on a side plate connecting the first plate to the second plate.
  • a conductive resistance sheet 60 may be provided on at least a portion of the first plate and the second plate.
  • a connection frame 70 may be further provided outside the conductive resistance sheet.
  • the connection frame may be a portion from which the first plate or the second plate extends or a portion from which the side plate extends.
  • the connection frame 70 may include a portion at which a component for sealing the door and the body and a component disposed outside the vacuum space such as the exhaust port and the getter port, which are required for the exhaust process, are connected to each other. Referring to Fig.
  • a conductive resistance sheet may be provided on a side plate connecting the first plate to the second plate.
  • the conductive resistance sheet may be installed in a through-hole passing through the vacuum space.
  • the conduit 64 may be provided separately outside the conductive resistance sheet.
  • the conductive resistance sheet may be provided in a pleated shape. Through this, the heat transfer path may be lengthened, and deformation due to a pressure difference may be prevented.
  • a separate shielding member for insulating the conductive resistance sheet 63 may also be provided.
  • the conductive resistance sheet may include a portion having a degree of deformation resistance less than that of at least one of the plate, the radiation resistance sheet, or the support.
  • the radiation resistance sheet may include a portion having a degree of deformation resistance less than that of at least one of the plate or the support.
  • the plate may include a portion having a degree of deformation resistance less than that of the support.
  • the conductive resistance sheet may include a portion having conductive heat transfer resistance greater than that of at least one of the plate, the radiation resistance sheet, or the support.
  • the radiation resistance sheet may include a portion having radiation heat transfer resistance greater than that of at least one of the plate, the conductive resistance sheet, or the support.
  • the support may include a portion having heat transfer resistance greater than that of the plate.
  • at least one of the plate, the conductive resistance sheet, or the connection frame may include stainless steel material
  • the radiation resistance sheet may include aluminum
  • the support may include a resin material.
  • Fig. 5 is a graph for observing a process of exhausting the inside of the vacuum adiabatic body with a time and pressure when the support is used.
  • An example of a vacuum adiabatic body vacuum exhaust process vacuum is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.
  • an outgassing process which is a process in which a gas of the vacuum space is discharged, or a potential gas remaining in the components of the vacuum adiabatic body is discharged, may be performed.
  • the exhaust process may include at least one of heating or drying the vacuum adiabatic body, providing a vacuum pressure to the vacuum adiabatic body, or providing a getter to the vacuum adiabatic body. In this case, it is possible to promote the vaporization and exhaust of the potential gas remaining in the component provided in the vacuum space.
  • the exhaust process may include a process of cooling the vacuum adiabatic body. The cooling process may be performed after the process of heating or drying the vacuum adiabatic body is performed.
  • the process of heating or drying the vacuum adiabatic body process of providing the vacuum pressure to the vacuum adiabatic body may be performed together.
  • the process of heating or drying the vacuum adiabatic body and the process of providing the getter to the vacuum adiabatic body may be performed together.
  • the process of cooling the vacuum adiabatic body may be performed.
  • the process of providing the vacuum pressure to the vacuum adiabatic body and the process of providing the getter to the vacuum adiabatic body may be performed so as not to overlap each other. For example, after the process of providing the vacuum pressure to the vacuum adiabatic body is performed, the process of providing the getter to the vacuum adiabatic body may be performed.
  • a pressure of the vacuum space may drop to a certain level and then no longer drop.
  • the getter may be input.
  • an operation of a vacuum pump connected to the vacuum space may be stopped.
  • the process of heating or drying the vacuum adiabatic body may be performed together. Through this, the outgassing may be promoted.
  • the process of providing the vacuum pressure to the vacuum adiabatic body may be performed.
  • the time during which the vacuum adiabatic body vacuum exhaust process is performed may be referred to as a vacuum exhaust time.
  • the vacuum exhaust time includes at least one of a time ⁇ 1 during which the process of heating or drying the vacuum adiabatic body is performed, a time ⁇ t2 during which the process of maintaining the getter in the vacuum adiabatic body is performed, of a time ⁇ t3 during which the process of cooling the vacuum adiabatic body is performed. Examples of times ⁇ t1, ⁇ t2, and ⁇ t3 are as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the time ⁇ t1 may be a time t1a or more and a time t1b or less.
  • the time t1a may be greater than or equal to about 0.2 hr and less than or equal to about 0.5 hr.
  • the time t1b may be greater than or equal to about 1 hr and less than or equal to about 24.0 hr.
  • the time ⁇ t1 may be about 0.3 hr or more and about 12.0 hr or less.
  • the time ⁇ t1 may be about 0.4 hr or more and about 8.0 hr or less.
  • the time ⁇ t1 may be about 0.5 hr or more and about 4.0 hr or less.
  • this case may include a case in which a component of the vacuum adiabatic body, which is exposed to the vacuum space, among the components of the vacuum adiabatic body, has an outgassing rate (%) less than that of any one of the component of the vacuum adiabatic body, which is exposed to the external space of the vacuum space.
  • the component exposed to the vacuum space may include a portion having a outgassing rate less than that of a thermoplastic polymer.
  • the support or the radiation resistance sheet may be disposed in the vacuum space, and the outgassing rate of the support may be less than that of the thermoplastic plastic.
  • this case may include a case in which a component of the vacuum adiabatic body, which is exposed to the vacuum space, among the components of the vacuum adiabatic body, has a max operating temperature (°C) greater than that of any one of the component of the vacuum adiabatic body, which is exposed to the external space of the vacuum space.
  • the vacuum adiabatic body may be heated to a higher temperature to increase in outgassing rate.
  • the component exposed to the vacuum space may include a portion having an operating temperature greater than that of the thermoplastic polymer.
  • the support or the radiation resistance sheet may be disposed in the vacuum space, and a use temperature of the support may be higher than that of the thermoplastic plastic.
  • the component exposed to the vacuum space may contain more metallic portion than a non-metallic portion. That is, a mass of the metallic portion may be greater than a mass of the non-metallic portion, a volume of the metallic portion may be greater than a volume of the non-metallic portion, or an area of the metallic portion exposed to the vacuum space may be greater than an area exposed to the non-metallic portion of the vacuum space.
  • the sum of the volume of the metal material included in the first component and the volume of the metal material included in the second component may be greater than that of the volume of the non-metal material included in the first component and the volume of the non-metal material included in the second component.
  • the sum of the mass of the metal material included in the first component and the mass of the metal material included in the second component may be greater than that of the mass of the non-metal material included in the first component and the mass of the non-metal material included in the second component.
  • the sum of the area of the metal material, which is exposed to the vacuum space and included in the first component, and an area of the metal material, which is exposed to the vacuum space and included in the second component may be greater than that of the area of the non-metal material, which is exposed to the vacuum space and included in the first component, and an area of the non-metal material, which is exposed to the vacuum space and included in the second component.
  • 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 ⁇ t1 may be about 1.0 hr or more and about 48.0 hr or less.
  • the time ⁇ t1 may be about 2 hr or more and about 24.0 hr or less.
  • the time ⁇ t1 may be about 3 hr or more and about 12.0 hr or less.
  • it may be the vacuum adiabatic body that needs to maintain the ⁇ t1 as long as possible.
  • a case opposite to the examples described in the first example or a case in which the component exposed to the vacuum space is made of a thermoplastic material may be an example. A duplicated description will be omitted.
  • the time ⁇ t1 may be a time t1a or more and a time t1b or less.
  • the time t2a may be greater than or equal to about 0.1 hr and less than or equal to about 0.3 hr.
  • the time t2b may be greater than or equal to about 1 hr and less than or equal to about 5.0 hr.
  • the time ⁇ t2 may be about 0.2 hr or more and about 3.0 hr or less.
  • the time ⁇ t2 may be about 0.3 hr or more and about 2.0 hr or less.
  • the time ⁇ t2 may be about 0.5 hr or more and about 1.5 hr or less.
  • the time ⁇ t3 may be a time t3a or more and a time t3b or less.
  • the time t2a may be greater than or equal to about 0.2 hr and less than or equal to about 0.8 hr.
  • the time t2b may be greater than or equal to about 1 hr and less than or equal to about 65.0 hr.
  • the tine ⁇ t3 may be about 0.2 hr or more and about 48.0 hr or less.
  • the time ⁇ t3 may be about 0.3 hr or more and about 24.0 hr or less.
  • the time ⁇ t3 may be about 0.4 hr or more and about 12.0 hr or less.
  • the time ⁇ t3 may be about 0.5 hr or more and about 5.0 hr or less.
  • the cooling process may be performed.
  • the time ⁇ t3 may be long.
  • the vacuum adiabatic body according to the present disclosure may be manufactured so that the time ⁇ t1 is greater than the time ⁇ t2, the time ⁇ t1 is less than or equal to the time ⁇ t3, or the time ⁇ t3 is greater than the time ⁇ t2.
  • the vacuum adiabatic body may be manufactured so that the relational expression: ⁇ t1+ ⁇ t2+ ⁇ t3 may be greater than or equal to about 0.3 hr and less than or equal to about 70 hr, be greater than or equal to about 1 hr and less than or equal to about 65 hr, or be greater than or equal to about 2 hr and less than or equal to about 24 hr.
  • the relational expression: ⁇ t1+ ⁇ t2+ ⁇ t3 may be manufactured to be greater than or equal to about 3 hr and less than or equal to about 6 hr.
  • a minimum value of the vacuum pressure in the vacuum space during the exhaust process may be greater than about 1.8E-6 Torr.
  • the minimum value of the vacuum pressure may be greater than about 1.8E-6 Torr and less than or equal to about 1.0E-4 Torr, be greater than about 0.5E-6 Torr and less than or equal to about 1.0E-4 Torr, or be greater than about 0.5E-6 Torr and less than or equal to about 0.5E-5 Torr.
  • the minimum value of the vacuum pressure may be greater than about 0.5E-6 Torr and less than about 1.0E-5 Torr.
  • the limitation in which the minimum value of the vacuum pressure provided during the exhaust process is because, even if the pressure is reduced through the vacuum pump during the exhaust process, the decrease in vacuum pressure is slowed below a certain level.
  • the vacuum pressure of the vacuum space may be maintained at a pressure greater than or equal to about 1.0E-5 Torr and less than or equal to about 5.0E-1 Torr.
  • the maintained vacuum pressure may be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-1 Torr, be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-2 Torr, be greater than or equal to about 1.0E-4 Torr and less than or equal to about 1.0E-2 Torr, or be greater than or equal to about 1.0E-5 Torr and less than or equal to about 1.0E-3 Torr.
  • one product may be provided so that the vacuum pressure is maintained below about 1.0E-04Torr even after about 16.3 years, and the other product may be provided so that the vacuum pressure is maintained below about 1.0E-04Torr even after about 17.8 years.
  • the vacuum pressure of the vacuum adiabatic body may be used industrially only when it is maintained below a predetermined level even if there is a change over time.
  • Fig. 5a is a graph of an elapsing time and pressure in the exhaust process according to an example
  • Fig. 5b is a view explaining results of a vacuum maintenance test in the acceleration experiment of the vacuum adiabatic body of the refrigerator having an internal volume of about 128 liters.
  • the vacuum pressure gradually increases according to the aging.
  • 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.
  • the vacuum adiabatic body according to the embodiment is sufficiently industrially applicable.
  • Fig. 6 is a graph illustrating results obtained by comparing the vacuum pressure with gas conductivity.
  • gas conductivity with respect to the vacuum pressure depending on a size of the gap in the vacuum space 50 was represented as a graph of effective heat transfer coefficient (eK).
  • the effective heat transfer coefficient (eK) was measured when the gap in the vacuum space 50 has three values of about 3 mm, about 4.5 mm, and about 9 mm.
  • the gap in the vacuum space 50 is defined as follows. When the radiation resistance sheet 32 exists inside surface vacuum space 50, the gap is a distance between the radiation resistance sheet 32 and the plate adjacent thereto. When the radiation resistance sheet 32 does not exist inside surface vacuum space 50, the gap is a distance between the first and second plates.
  • the vacuum pressure is about 5.0E-1 Torr even when the size of the gap is about 3 mm.
  • the point at which reduction in adiabatic effect caused by the gas conduction heat is saturated even though the vacuum pressure decreases is a point at which the vacuum pressure is approximately 4.5E-3 Torr.
  • the vacuum pressure of about 4.5E-3 Torr may be defined as the point at which the reduction in adiabatic effect caused by the gas conduction heat is saturated.
  • the vacuum pressure is about 1.2E-2 Torr.
  • the support may include at least one of a bar, a connection plate, or a support plate. In this case, when the gap of the vacuum space is greater than or equal to about 3 mm, the vacuum pressure may be greater than or equal to A and less than about 5E-1 Torr, or be greater than about 2.65E-1 Torr and less than about 5E-1 Torr.
  • the support may include at least one of a bar, a connection plate, or a support plate.
  • the vacuum pressure when the gap of the vacuum space is greater than or equal to about 4.5 mm, the vacuum pressure may be greater than or equal to A and less than about 3E-1 Torr, or be greater than about 1.2E-2 Torr and less than about 5E-1 Torr.
  • the support may include at least one of a bar, a connection plate, or a support plate, and when the gap of the vacuum space is greater than or equal to about 9 mm, the vacuum pressure may be greater than or equal to A and less than about 1.0 ⁇ 10 ⁇ -1 Torr or be greater than about 4.5E-3 Torr and less than about 5E-1 Torr.
  • the A may be greater than or equal to about 1.0 ⁇ 10 ⁇ -6 Torr and less than or equal to about 1.0E-5 Torr.
  • the A may be greater than or equal to about 1.0 ⁇ 10 ⁇ -5 Torr and less than or equal to about 1.0E-4 Torr.
  • the vacuum pressure may be greater than or equal to about 4.7E-2 Torr and less than or equal to about 5E-1 Torr. In this case, it is understood that the size of the gap ranges from several micrometers to several hundreds of micrometers.
  • Fig. 7 is a view illustrating various examples of the vacuum space.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the vacuum adiabatic body may include a vacuum space.
  • the vacuum space 50 may include a first vacuum space extending in a first direction (e.g., X-axis) and having a predetermined height.
  • the vacuum space 50 may optionally include a second vacuum space (hereinafter, referred to as a vacuum space expansion portion) different from the first vacuum space in at least one of the height or the direction.
  • the vacuum space expansion portion may be provided by allowing at least one of the first and second plates or the side plate to extend. In this case, the heat transfer resistance may increase by lengthening a heat conduction path along the plate.
  • the vacuum space expansion portion in which the second plate extends may reinforce adiabatic performance of a front portion of the vacuum adiabatic body.
  • the vacuum space expansion portion in which the second plate extends may reinforce adiabatic performance of a rear portion of the vacuum adiabatic body, and the vacuum space expansion portion in which the side plate extends may reinforce adiabatic performance of a side portion of the vacuum adiabatic body.
  • the second plate may extend to provide the vacuum space expansion portion 51.
  • the second plate may include a second portion 202 extending from a first portion 201 defining the vacuum space 50 and the vacuum space expansion portion 51.
  • the second portion 202 of the second plate may branch a heat conduction path along the second plate to increase in heat transfer resistance. Referring to Fig.
  • the side plate may extend to provide the vacuum space expansion portion.
  • the side plate may include a second portion 152 extending from a first portion 151 defining the vacuum space 50 and the vacuum space extension portion 51.
  • the second portion of the side plate may branch the heat conduction path along the side plate to improve the adiabatic performance.
  • the first and second portions 151 and 152 of the side plate may branch the heat conduction path to increase in heat transfer resistance.
  • the first plate may extend to provide the vacuum space expansion portion.
  • the first plate may include a second portion 102 extending from the first portion 101 defining the vacuum space 50 and the vacuum space expansion portion 51.
  • the second portion of the first plate may branch the heat conduction path along the second plate to increase in heat transfer resistance. Referring to Fig.
  • the vacuum space expansion portion 51 may include an X-direction expansion portion 51a and a Y-direction expansion portion 51b of the vacuum space.
  • the vacuum space expansion portion 51 may extend in a plurality of directions of the vacuum space 50.
  • the adiabatic performance may be reinforced in multiple directions and may increase by lengthening the heat conduction path in the plurality of directions to improve the heat transfer resistance.
  • the vacuum space expansion portion extending in the plurality of directions may further improve the adiabatic performance by branching the heat conduction path.
  • the side plate may provide the vacuum space extension portion extending in the plurality of directions.
  • the vacuum space expansion portion may reinforce the adiabatic performance of the side portion of the vacuum adiabatic body.
  • the first plate may provide the vacuum space extension portion extending in the plurality of directions.
  • the vacuum space expansion portion may reinforce the adiabatic performance of the side portion of the vacuum adiabatic body.
  • Fig. 8 is a view for explaining another adiabatic body.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the vacuum adiabatic body according to the present disclosure may optionally include another adiabatic body 90.
  • Another adiabatic body may have a degree of vacuum less than that of the vacuum adiabatic body and be an object that does not include a portion having a vacuum state therein.
  • the vacuum adiabatic body and another vacuum adiabatic body may be directly connected to each other or connected to each other through an intermedium.
  • the intermedium may have a degree of vacuum less than that of at least one of the vacuum adiabatic body or another adiabatic body or may be an object that does not include a portion having the vacuum state therein.
  • the vacuum adiabatic body includes a portion in which the height of the vacuum adiabatic body is high and a portion in which the height of the vacuum adiabatic body is low
  • another adiabatic body may be disposed at a portion having the low height of the vacuum adiabatic body.
  • Another adiabatic body may include a portion connected to at least a portion of the first and second plates and the side plate. Another adiabatic body may be supported on the plate or coupled or sealed.
  • a degree of sealing between another adiabatic body and the plate may be lower than a degree of sealing between the plates.
  • Another adiabatic body may include a cured adiabatic body (e.g., PU foaming solution) that is cured after being injected, a pre-molded resin, a peripheral adiabatic body, and a side panel. At least a portion of the plate may be provided to be disposed inside another adiabatic body.
  • Another adiabatic body may include an empty space. The plate may be provided to be accommodated in the empty space. At least a portion of the plate may be provided to cover at least a portion of another adiabatic body.
  • Another adiabatic body may include a member covering an outer surface thereof. The member may be at least a portion of the plate.
  • Another adiabatic body may be an intermedium for connecting, supporting, bonding, or sealing the vacuum adiabatic body to the component.
  • Another adiabatic body may be an intermedium for connecting, supporting, bonding, or sealing the vacuum adiabatic body to another vacuum adiabatic body.
  • Another adiabatic body may include a portion connected to a component coupling portion provided on at least a portion of the plate.
  • Another adiabatic body may include a portion connected to a cover covering another adiabatic body.
  • the cover may be disposed between the first plate and the first space, between the second plate and the second space, or between the side plate and a space other than the vacuum space 50.
  • the cover may include a portion on which the component is mounted.
  • the cover may include a portion that defines an outer appearance of another adiabatic body.
  • another adiabatic body may include a peripheral adiabatic body.
  • the peripheral adiabatic body may be disposed on at least a portion of a periphery of the vacuum adiabatic body, a periphery of the first plate, a periphery of the second plate, and the side plate.
  • the peripheral adiabatic body disposed on the periphery of the first plate or the periphery of the second plate may extend to a portion at which the side plate is disposed or may extend to the outside of the side plate.
  • the peripheral adiabatic body disposed on the side plate may extend to a portion at which the first plate or may extend to the outside of the first plate or the second plate.
  • another adiabatic body may include a central adiabatic body.
  • the central adiabatic body may be disposed on at least a portion of a central portion of the vacuum adiabatic body, a central portion of the first plate, or a central portion of the second plate.
  • the peripheral adiabatic body 92 may be placed on the periphery of the first plate.
  • the peripheral adiabatic body may be in contact with the first plate.
  • the peripheral adiabatic body may be separated from the first plate or further extend from the first plate (indicated by dotted lines).
  • the peripheral adiabatic body may improve the adiabatic performance of the periphery of the first plate.
  • the peripheral adiabatic body may be placed on the periphery of the second plate.
  • the peripheral adiabatic body may be in contact with the second plate.
  • the peripheral adiabatic body may be separated from the second plate or further extend from the second plate (indicated by dotted lines).
  • the periphery adiabatic body may improve the adiabatic performance of the periphery of the second plate.
  • the peripheral adiabatic body may be disposed on the periphery of the side plate.
  • the peripheral adiabatic body may be in contact with the side plate.
  • the peripheral adiabatic body may be separated from the side plate or further extend from the side plate.
  • the peripheral adiabatic body may improve the adiabatic performance of the periphery of the side plate
  • the peripheral adiabatic body 92 may be disposed on the periphery of the first plate.
  • the peripheral adiabatic body may be placed on the periphery of the first plate constituting the vacuum space expansion portion 51.
  • the peripheral adiabatic body may be in contact with the first plate constituting the vacuum space extension portion.
  • the peripheral adiabatic body may be separated from or further extend to the first plate constituting the vacuum space extension portion.
  • the peripheral adiabatic body may improve the adiabatic performance of the periphery of the first plate constituting the vacuum space expansion portion.
  • the vacuum space extension portion may be disposed on a periphery of the second plate or the side plate.
  • the central adiabatic body 91 may be placed on a central portion of the first plate.
  • the central adiabatic body may improve adiabatic performance of the central portion of the first plate.
  • the central adiabatic body may be disposed on the central portion of the second plate.
  • the central adiabatic body may improve adiabatic performance of the central portion of the second plate.
  • Fig. 9 is a view for explaining a heat transfer path between first and second plates having different temperatures.
  • An example of the heat transfer path is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the heat transfer path may pass through the extension portion at at least a portion of the first portion 101 of the first plate, the first portion 201 of the second plate, or the first portion 151 of the side plate.
  • the first portion may include a portion defining the vacuum space.
  • the extension portions 102, 152, and 202 may include portions extending in a direction away from the first portion.
  • the extension portion may include a side portion of the vacuum adiabatic body, a side portion of the plate having a higher temperature among the first and second plates, or a portion extending toward the side portion of the vacuum space 50.
  • the extension portion may include a front portion of the vacuum adiabatic body, a front portion of the plate having a higher temperature among the first and second plates, or a front portion extending in a direction away from the front portion of the vacuum space 50. Through this, it is possible to reduce generation of dew on the front portion.
  • the vacuum adiabatic body or the vacuum space 50 may include first and second surfaces having different temperatures from each other. The temperature of the first surface may be lower than that of the second surface.
  • the first surface may be the first plate, and the second surface may be the second plate.
  • the extension portion may extend in a direction away from the second surface or include a portion extending toward the first surface.
  • the extension portion may include a portion, which is in contact with the second surface, or a portion extending in a state of being in contact with the second surface.
  • the extension portion may include a portion extending to be spaced apart from the two surfaces.
  • the extension portion may include a portion having heat transfer resistance greater than that of at least a portion of the plate or the first surface.
  • the extension portion may include a plurality of portions extending in different directions.
  • the extension portion may include a second portion 202 of the second plate and a third portion 203 of the second plate.
  • the third portion may also be provided on the first plate or the side plate. Through this, it is possible to increase in heat transfer resistance by lengthening the heat transfer path.
  • the above-described heat transfer resistor may be disposed.
  • the extension portion may reduce generation of dew on the second surface.
  • the second plate may include the extension portion extending to the periphery of the second plate.
  • the extension portion may further include a portion extending backward.
  • the side plate may include the extension portion extending to a periphery of the side plate.
  • the extension portion may be provided to have a length that is less than or equal to that of the extension portion of the second plate.
  • the extension portion may further include a portion extending backward.
  • the first plate may include the extension portion extending to the periphery of the first plate.
  • the extension portion may extend to a length that is less than or equal to that of the extension portion of the second plate.
  • the extension portion may further include a portion extending backward.
  • Fig. 10 is a view for explaining a branch portion on the heat transfer path between first and second plates having different temperatures.
  • An example of the branch portion is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.
  • the heat transfer path may pass through portions 205, 153, and 104, each of which is branched from at least a portion of the first plate, the second plate, or the side plate.
  • the branched heat transfer path means a heat transfer path through which heat flows to be separated in a different direction from the heat transfer path through which heat flows along the plate.
  • the branched portion may be disposed in a direction away from the vacuum space 50.
  • the branched portion may be disposed in a direction toward the inside of the vacuum space 50.
  • the branched portion may perform the same function as the extension portion described with reference to Fig. 9, and thus, a description of the same portion will be omitted.
  • the second plate may include the branched portion 205.
  • the branched portion may be provided in plurality, which are spaced apart from each other.
  • the branched portion may include a third portion 203 of the second plate.
  • the side plate may include the branched portion 153.
  • the branched portion 153 may be branched from the second portion 152 of the side plate.
  • the branched portion 153 may provide at least two. At least two branched portions 153 spaced apart from each other may be provided on the second portion 152 of the side plate.
  • the first plate may include the branched portion 104.
  • the branched portion may further extend from the second portion 102 of the first plate.
  • the branched portion may extend toward the periphery.
  • the branched portion 104 may be bent to further extend.
  • a direction in which the branched portion extends in Figs. 10a, 10b, and 10c may be the same as at least one of the extension directions of the extension portion described in Fig. 10.
  • Fig. 11 is a view for explaining a process of manufacturing the vacuum adiabatic body.
  • the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component preparation process in which the first plate and the second plate are prepared in advance.
  • the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component assembly process in which the first plate and the second plate are assembled.
  • the vacuum adiabatic body may be manufactured by a vacuum adiabatic body vacuum exhaust process in which a gas in the space defined between the first plate and the second plate is discharged.
  • the vacuum adiabatic body component preparation process is performed, the vacuum adiabatic body component assembly process or the vacuum adiabatic body exhaust process may be performed.
  • the vacuum adiabatic body vacuum exhaust process may be performed.
  • the vacuum adiabatic body may be manufactured by the vacuum adiabatic body component sealing process (S3) in which the space between the first plate and the second plate is sealed.
  • the vacuum adiabatic body component sealing process may be performed before the vacuum adiabatic body vacuum exhaust process (S4).
  • the vacuum adiabatic body may be manufactured as an object with a specific purpose by an apparatus assembly process (S5) in which the vacuum adiabatic body is combined with the components constituting the apparatus.
  • the apparatus assembly process may be performed after the vacuum adiabatic body vacuum exhaust process.
  • the components constituting the apparatus means components constituting the apparatus together with the vacuum adiabatic body.
  • the vacuum adiabatic body component preparation process (S1) is a process in which components constituting the vacuum adiabatic body are prepared or manufactured. Examples of the components constituting the vacuum adiabatic body may include various components such as a plate, a support, a heat transfer resistor, and a tube.
  • the vacuum adiabatic body component assembly process (S2) is a process in which the prepared components are assembled.
  • the vacuum adiabatic body component assembly process may include a process of disposing at least a portion of the support and the heat transfer resistor on at least a portion of the plate.
  • the vacuum adiabatic body component assembly process may include a process of disposing at least a portion of the support and the heat transfer resistor between the first plate and the second plate.
  • the vacuum adiabatic body component assembly process may include a process of disposing a penetration component on at least a portion of the plate.
  • the vacuum adiabatic body component assembly process may include a process of disposing the penetration component or a surface component between the first and second plates. After the penetration component may be disposed between the first plate and the second plate, the penetration component may be connected or sealed to the penetration component coupling portion.
  • the present disclosure may be any one of the, examples or a combination of two or more examples.
  • the vacuum adiabatic body vacuum exhaust process may include at least one of a process of inputting the vacuum adiabatic body into an exhaust passage, a getter activation process, a process of checking vacuum leakage and a process of closing the exhaust port.
  • the process of forming the coupling part may be performed in at least one of the vacuum adiabatic body component preparation process, the vacuum adiabatic body component assembly process, or the apparatus assembly process. Before the vacuum adiabatic body exhaust process is performed, a process of washing the components constituting the vacuum adiabatic body may be performed.
  • the washing process may include a process of applying ultrasonic waves to the components constituting the vacuum adiabatic body or a process of providing ethanol or a material containing ethanol to surfaces of the components constituting the vacuum adiabatic body.
  • the ultrasonic wave may have an intensity between about 10 kHz and about 50 kHz.
  • a content of ethanol in the material may be about 50% or more.
  • the content of ethanol in the material may range of about 50% to about 90%.
  • the content of ethanol in the material may range of about 60% to about 80%.
  • the content of ethanol in the material may be range of about 65% to about 75%.
  • a process of drying the components constituting the vacuum adiabatic body may be performed.
  • a process of heating the components constituting the vacuum adiabatic body may be performed.
  • the vacuum adiabatic body component preparation process may include a process of manufacturing the plate. Before the vacuum adiabatic body vacuum exhaust process is performed, the process of manufacturing the plate may be performed.
  • the plate may be manufactured by a metal sheet.
  • a thin and wide plate may be manufactured using plastic deformation.
  • the manufacturing process may include a process of molding the plate.
  • the molding process may be applied to the molding of the side plate or may be applied to a process of integrally manufacturing at least a portion of at least one of the first plate and the second plate, and the side plate.
  • the molding may include drawing.
  • the molding process may include a process in which the plate is partially seated on a support.
  • the molding process may include a process of partially applying force to the plate.
  • the molding process may include a process of seating a portion of the plate on the support a process of applying force to the other portion of the plate.
  • the molding process may include a process of deforming the plate.
  • the deforming process may include a process of forming at least one or more curved portions on the plate.
  • the deforming process may include a process of changing a curvature radius of the plate or a process of changing a thickness of the plate.
  • the process of changing the thickness may include a process of allowing a portion of the plate to increase in thickness, and the portion may include a portion extending in a longitudinal direction of the internal space (a first straight portion). The portion may be provided in the vicinity of the portion at which the plate is seated on the support in the process of molding the plate.
  • the process of changing the thickness may include a process of reducing a thickness of a portion of the plate, and the portion may include a portion extending in a longitudinal direction of the internal space (a second straight portion). The portion may be provided in the vicinity of a portion to which force is applied to the plate in the process of molding the plate.
  • the process of changing the thickness may include a process of reducing a thickness of a portion of the plate, and the portion may include a portion extending in a height direction of the internal space (the second straight portion). The portion may be connected to the portion extending in the longitudinal direction of the internal space of the plate.
  • the process of changing the thickness may include a process of allowing a portion of the plate to increase in thickness, and the portion may include at least one of a portion to which the side plate extends in the longitudinal direction of the internal space and a curved portion provided between the portions extending in the height direction of the internal space (a first curved portion).
  • the curved portion may be provided at the portion seated on the support of the plate or in the vicinity of the portion in the process of molding the plate.
  • the process of changing the thickness may include a process of allowing a portion of the plate to decrease in thickness, and the portion may include at least one of a portion to which the side plate extends in the longitudinal direction of the internal space and a curved portion provided between the portions extending in the height direction of the internal space (a second curved portion).
  • the curved portion may be provided in the vicinity of a portion to which force is applied to the plate in the process of molding the plate.
  • the deforming process may be any one of the above-described examples or an example in which at least two of the above-described examples are combined.
  • the process associated with the plate may selectively include a process of washing the plate.
  • An example of a process sequence associated with the process of washing the plate is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the process of washing the plate may be performed.
  • the process of manufacturing the plate is performed, at least one of the process of molding the plate and the process of washing the plate may be performed.
  • the process of washing the plate may be performed.
  • the process of washing the plate may be performed.
  • At least one of a process of providing a component coupling portion to a portion of the plate or the process of washing the plate may be performed.
  • the process of washing the plate may be performed.
  • the process associated with the plate selectively include the process of providing the component coupling portion to the plate.
  • An example of a process sequence associated with the process of providing the component coupling portion to the plate is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • a process of providing the component coupling portion to a portion of the plate may be performed.
  • the process of providing the component coupling portion may include a process of manufacturing a tube provided to the component coupling portion.
  • the tube may be connected to a portion of the plate.
  • the tube may be disposed in an empty space provided in the plate or in an empty space provided between the plates.
  • the process of providing the component coupling portion may include a process of providing a through-hole in a portion of the plate.
  • the process of providing the component coupling portion may include a process of providing a curved portion to at least one of the plate or the tube.
  • the process associated with the plate may optionally include a process for sealing the vacuum adiabatic body component associated with the plate.
  • An example of a process sequence associated with the process of sealing the vacuum adiabatic body component associated with the plate is as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples. After the process of providing the through-hole in the portion of the plate is performed, at least one of a process of providing a curved portion to at least a portion of the plate or the tube or a process of providing a seal between the plate and the tube may be performed. After the process of providing the curved portion to at least a portion of at least one of the plate or the tube is performed, the process of sealing the gap between the plate and the tube may be performed.
  • the process of providing the through-hole in the portion of the plate and the process of providing the curved portion in at least a portion of the plate and the tube may be performed at the same time.
  • the process of providing a through-hole in a part of the plate and the process of providing the seal between the plate and the tube may be performed at the same time.
  • the process of providing a through-hole in the portion of the plate may be performed.
  • a portion of the tube may be provided and/or sealed to the plate, and after the vacuum adiabatic body vacuum exhaust process is performed, the other portion of the tube may be sealed.
  • the example of the process associated with the plate may also be applied to the example of the process of the heat transfer resistor.
  • the vacuum adiabatic body may include a side plate connecting the first plate to the second plate.
  • Examples of the side plate are as follows.
  • the present disclosure may be any one of the following examples or a combination of two or more examples.
  • the side plate may be provided to be integrated with at least one of the first or second plate.
  • the side plate may be provided to be integrated with any one of the first and second plates.
  • the side plate may be provided as any one of the first and second plates.
  • the side plate may be provided as a portion of any one of the first and second plates.
  • the side plate may be provided as a component separated from the other of the first and second plates. In this case, optionally, the side plate may be provided to be coupled or sealed to the other one of the first and second plates.
  • the side plate may include a portion having a degree of strain resistance, which is greater than that of at least a portion of the other one of the first and second plates.
  • the side plate may include a portion having a thickness greater than that of at least a portion of the other one of the first and second plates.
  • the side plate may include a portion having a curvature radius less than that of at least a portion of the other one of the first and second plates.
  • the vacuum adiabatic body may include a heat transfer resistor provided to reduce a heat transfer amount between a first space provided in the vicinity of the first plate and a second space provided in the vicinity of the second plate.
  • Examples of the heat transfer resistor are as follows. The present disclosure may be any one of the following examples or a combination of two or more examples.
  • the heat transfer resistor may be provided to be integrated with at least one of the first or second plate.
  • the heat transfer resistor may be provided to be integrated with any one of the first and second plates.
  • the heat transfer resistor may be provided as any one of the first and second plates.
  • the heat transfer resistor may be provided as a portion of any one of the first and second plates.
  • the heat transfer resistor may be provided as a component separated from the other one of the first and second plates. In this case, optionally, the heat transfer resistor may be provided to be coupled or sealed to the other one of the first and second plates.
  • the heat transfer resistor may include a portion having a degree of heat transfer resistance, which is greater than that of at least a portion of the other one of the first and second plates.
  • the heat transfer resistor may include a portion having a thickness less than that of at least a portion of the other one of the first and second plates.
  • the heat transfer resistor may include a portion having a curvature radius less than that of at least a portion of the other one of the first and second plates.
  • the heat transfer resistor may include a portion having a curvature radius less than that of at least a portion of the other one of the first and second plates.
  • Fig. 12 is a perspective view in which a tube is installed in a vacuum adiabatic body.
  • (a) of Fig. 12 is a view illustrating a state before the tube is coupled
  • (b) of Fig. 12 is a view illustrating a state after the tube is coupled.
  • the vacuum adiabatic body may have a tube 40.
  • the tube 40 may be a tube for exhausting a fluid of the vacuum space 50.
  • the tube 40 may be a tube for a getter, in which a getter for gas adsorption is supported.
  • the tube 40 may serve as an exhaust port and a getter port.
  • a thickness of the tube may be greater than that of the first plate 10.
  • the thickness of the tube may be provided to be thicker than that of the second plate 20.
  • the thickness of the tube may be provided to a thickness that is sufficient to withstand compression required for sealing the tube. The sealing may be performed through pinch-off.
  • the tube may have a sufficient wall thickness. Since the tube is a soft material, it is necessary to increase in wall thickness. If the wall thickness is small, it may be torn at the time of sealing or may cause vacuum breakage. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the tube may be provided as a circular or oval hollow tube made of a metal.
  • the tube may be sealed after the exhaust or after inserting the getter.
  • the tube may be sealed through pressure welding.
  • the tube may be sealed by deforming the tube.
  • the tube may be sealed through pinching-off.
  • the tube may be made of copper (CU) for easy deformation. Copper having strength less than that of stainless steel may be used as the tube. Since the easily deformable copper is used, the pinch-off process may be smoothly performed. In addition, it is possible to reliably provide the seal.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the tube 40 may be inserted into the first plate 10. At least a portion of the tube 40 may be inserted into the vacuum space 50. At least a portion of the tube 40 may be in contact with the first plate 10.
  • the tube 40 may be provided at the peripheral portion of the vacuum adiabatic body.
  • a through-hole 41 for inserting the tube may be defined in the first plate 10.
  • a flange 42 to which the tube 40 is coupled may be processed at the peripheral portion of the through-hole 41.
  • the flange 42 may be provided to be integrated with the first plate 10.
  • the flange 42 may be provided by a burr of the through-hole 41.
  • the through-hole 41 may have the same shape as an outer shape of the tube 40. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the flange 42 may have a predetermined height portion HL extending in a height direction of the vacuum space.
  • the curvature portion may guide the tube 40.
  • the curvature portion may allow the tube to be conveniently inserted into the through-hole 41.
  • At least a portion of the height portion may provide a contact portion with the tube 40.
  • At least a portion of the tube 40 may be in contact with and/or coupled to the height portion.
  • the tube 40 may be guided to the flange 42.
  • the tube may extend in the height direction of the vacuum space 50. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • Fig. 13 is a view for explaining a method of processing the through-hole of the first plate.
  • a hole may be processed in the first plate 10 (S1). Thereafter, the hole may be pressed using a pressing tool having a diameter greater than that of the hole (S2).
  • a size of the hole may be less than the diameter of the through-hole 41.
  • the hole When the through-hole 41 has a circular shape, the hole may be provided in a circular shape.
  • a diameter of a piercing tool for processing the hole may be less than an outer diameter of the tube 40 by 3 mm or less.
  • a height of the flange 42 may be about 3 mm or less.
  • the pressing tool and the hole may have the same geometric center, and a pressing process may be performed.
  • the pressing tool may use the same diameter as the outer diameter of the tube 40.
  • the pressing process may be a burring process.
  • a burr may be provided in the burring process.
  • a peripheral portion of the hole may be stretched by a predetermined length to form the flange 42.
  • the burr 402 may provide the flange 42.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the following method may be applied. It may provide small force compared to the force applied in the general burring process. The force may be applied gradually for a longer time than that required for the general burring process.
  • a first curvature may be processed in the periphery portion of the hole provided by the piercing process between the piercing process and the burring process.
  • a support having a groove corresponding to a desired shape of the burr may be provided on a surface on which the burr is generated. It may provide the flange 42 having a small curvature radius R through the above process.
  • a portion at which the curvature radius is formed may be referred to as a curvature portion.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • Fig. 14 is a cross-sectional view taken along line 1-1' of Fig. 12b.
  • Fig. 14 illustrates a state in which the vacuum adiabatic body is applied to a door.
  • a cross-section of the tube and its related configuration will be described with reference to Fig. 14.
  • the first plate 10 may have a thickness of at least about 0.1 mm or more. Thus, it may secure rigidity to obtain process stability when inserting the tube 40.
  • the thickness of the first plate 10 may be about 0.1mm.
  • the second plate 20 may have a thickness of about 0.5 mm or more.
  • the thin first plate 10 may be provided because conductive heat decreases. If the first plate 10 is thin, there may be a disadvantage that it is vulnerable to deformation. When the tube 40 is inserted into the through-hole 41, the first plate 10 in the vicinity of the through-hole 41 may be deformed. In this case, there may be a high possibility that the first plate 10 is in contact with the heat transfer resistor 32 to cause a heat loss.
  • an example of the heat transfer resistor described with reference to Fig. 14 may be a radiation resistance sheet.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • a height H1 of the flange 42 may be provided to be about 1 mm or more and about 3 mm or less.
  • the height of the flange 42 exceeds about 3 mm, there is a high risk that the heat transfer resistor 32 and the flange 42 are in contact with each other.
  • the height of the flange 42 exceeds about 3 mm, the first plate 10 may be torn during the pressing process, and thus, there may be a high possibility that the flange is torn. If there is a processing error of the flange, these limitations may be more serious.
  • the height of the flange is less than about 1 mm, a contact surface may decrease when brazing the tube and the flange, and thus, there may be a high risk of vacuum leakage.
  • the height of the flange is less than about 1 mm, coupling strength between the tube and the flange may be weakened, and thus, there may be a high possibility that the coupling part is damaged.
  • a filler metal may be injected into the contact surface.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the curvature radius R of the curvature portion of the flange 42 defining the through-hole 41 may be less than that of each of all bent portions provided on the first plate 10.
  • the curvature radius R of the flange 42 defining the through-hole 41 may be less than that of each of all bent portions provided on the second plate 20.
  • the curvature radius R of the flange 42 defining the through-hole 41 may be less than that of each of all bent portions provided on the side plate 15.
  • a length of the height portion HL of the flange 42 may increase by reducing the curvature radius of the flange 42.
  • the height portion HL of the flange 42 may be a portion at which the tube 40 and the flange 42 are bonded to each other through brazing.
  • a large contact area between the tube 40 and the flange 42 may be secured by allowing the length of the height portion HL of the flange 42 to increase.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the tube may be insulated with the additional adiabatic body 90.
  • the additional adiabatic body 90 may insulate a gap between the tube 40 and the first space and/or a gap between the tube 40 and the second space.
  • the tube 40 may not have access to the plate containing the additional adiabatic body 90.
  • the tube 40 may have high thermal insulation performance as being spaced apart from the plate. This is because the tube 40 is made of copper having high thermal conductivity. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the deformation of the seal of the tube 40 may be propagated along the tube 40 to a bonding portion of the tube 40 and the flange 42. In this case, the bonding portion may be damaged.
  • the bonding portion may have the first plate 10 having low rigidity as one bonding surface. For this reason, there may be a greater risk of damage to the bonding portion. It may reduce the insulation loss through the tube 40 by providing the optimal length of the tube 40. It may prevent the bonding portion from being damaged by providing the optimal length of the tube 40.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • a height H2 of the tube 40 protruding from the first plate 10 may be at least twice the diameter of the tube 40.
  • the deformation of the seal of the tube 40 may not be transmitted to the bonding portion.
  • the tube 40 may be maintained in its original shape at the bonding portion.
  • the tube 40 does not have a circular shape.
  • the height of the tube may mean more than twice a mean diameter of the tube 40.
  • the mean diameter may mean a mean distance from the geometric center of the cross-section of the tube to an edge of the cross-section of the tube.
  • the tube 40 may extend obliquely in the height direction of the vacuum space 50. In this case, the distance from the seal of the tube to the point closest to the first plate 10 may be twice the diameter of the tube 40 or more.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the tube 40 may have an end of the tube 40 protruding from the first plate 10.
  • the end may not be in contact with an outer surface or boundary of the additional adiabatic body 90.
  • the tube 40 may extend in the height direction in the vacuum state.
  • the tube 40 and the gasket 80 may be vertically aligned.
  • a heat conduction path between the end of the tube 40 and an adjacent portion of the gasket 80 may be generated to increase the insulation loss.
  • a distance H3 from the end of the tube 40 to the outer surface or boundary of the additional adiabatic body 90 may be about 20 mm or less.
  • the height H2 of the tube 40 protruding from the first plate 10 may be greater than a distance H3 from the end of the tube 40 to the boundary of the additional adiabatic body 90.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the sum of the height H2 of the tube 40 protruding from the first plate 10 and the distance H3 from the end of the tube 40 to the boundary of the additional adiabatic body 90 may be provided to be greater than the height of the vacuum space 50.
  • the vacuum space 50 may be provided to be about 10 mm or more and about 20 mm or less.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the flange 42 may face the vacuum space 50.
  • the flange 42 may guide the insertion of the tube 40.
  • the operator may conveniently insert the tube 40.
  • the flange 42 may be directed to the outside of the vacuum space 50.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • Fig. 15 illustrates an embodiment in which the flange extends toward the outside of the vacuum space.
  • the flange 42 may extend to the outside of the vacuum space 50.
  • the flange 42 may extend toward the first space.
  • the end of the flange 42 may not be in contact with the heat transfer resistor 32.
  • the heat transfer resistor may be freely installed inside the vacuum space 50 without interference of the flange 42.
  • the heat transfer resistor 32 may be installed adjacent to or in contact with the first plate 10.
  • the support 30 may be installed without the interference of the flange 42.
  • the interference, contact, and adjacency between the respective heat transfer resistors 32, 33, 60, and 63 placed in the vacuum space 50 and the flange 42 may be prevented from occurring.
  • a degree of freedom in design may increase, and the heat conduction may decrease.
  • the interference may mean that the product design is difficult because the regions of the components overlap each other during the design.
  • the contact may mean that the components are in contact with each other, and the insulation loss increases rapidly.
  • the adjacency may refer to the intervening of an additional insulating material due to the occurrence of thermal insulation loss due to adjacent components.
  • a coupling process of coupling the tube 40 to the plate, an exhaust process of exhausting to form the vacuum space 50, and/or a sealing process of sealing the tube 40 may be sequentially performed.
  • the coupling process may be performed by sealing the tube 40 and the first plate 10.
  • the sealing may be performed through brazing.
  • the exhaust process may be performed by putting the tube 40 and the plate into an exhaust furnace (heating furnace) and baking (heating) the tube 40 and the plate at a high temperature.
  • the sealing process may be performed through pressure welding.
  • the sealing process may be performed the cold welding. For example, the sealing process may be performed by pinching off the tube 40.
  • a copper tube 401 may be used as a material of the tube 40.
  • the cutting process of the tube 40 and the sealing process of the tube 40 may be performed together.
  • the tube 40 may use a tube having a thickness greater than about 0.5 mm. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • Fig. 16 is a view explaining a process of forming the vacuum space by using the tube.
  • a piercing process (S1) of processing a hole in the first plate 10, and/or a burring process (S2) of processing a burr 402 in the first plate 10 may be sequentially performed.
  • Fig. 17 is a view for explaining the piercing process. Referring to Fig. 17, a fixing jig 410 may be supported on the first plate 10, and a hole may be processed using the piercing tool 411.
  • Fig. 18 is a view for explaining the burring process. Referring to Fig. 18, the fixing jig 410 may be supported on the first plate 10, and the burr 402 may be formed in a hole using a burring tool.
  • the hole may be less about 2 mm to about 3 mm than a diameter of the burring tool.
  • the burr 402 may be provided by the above-described diameter difference.
  • the burr 402 may be a flange 42 for the tube 40.
  • the inside of the burr may provide a through-hole 41.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the tube 40 may be inserted into the flange 42 to be temporarily assembled (S3).
  • the filler metal 403 may be mounted on a contact portion between the tube 40 and the flange 42 (S4).
  • the filler metal 403 may mean that a material necessary for the brazing, such as flux, is contained together.
  • Fig. 19 is a view illustrating a state in which the filler metal is installed.
  • An example of the tube described above in Fig. 16 may be a copper tube.
  • the material of the tube may be oxidized.
  • oxides may be formed on the surface of the tube.
  • the oxide may be weak to impact and may have high brittleness.
  • An example of the foregoing tube may be a copper tube.
  • the aforementioned oxide may be copper oxide. Even if a material other than copper is used as the material of the tube, the material may be oxidized at a high temperature to form metal oxide. Similarly, when the exhaust process including the baking is performed, the oxide may be formed on the surface of the tube 40.
  • the oxide may block bonding between atoms of the material constituting the tube when the tube 40 is pinched off. Due to the oxide, the bonding between the atoms of the material constituting the tube may be impossible to cause pinch-off defects.
  • the oxide may harden the tube 40. The oxide may make it difficult to deform the tube 40 during the pinch-off. As a result, the oxide causes the pinch-off defects and thus leakage of the tube 40.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • An example of the aforementioned tube may be a copper tube 401.
  • the aforementioned oxide may be copper oxide.
  • the coupling process and the exhaust process may be performed at a high temperature of about 200 degrees or more.
  • a configuration and method for preventing the formation of the oxide under the high temperature atmosphere in the coupling process and the exhaust process may be proposed.
  • a low-temperature block is mounted on the tube 40 (S5).
  • Fig. 20 is a schematic view illustrating a state in which the low-temperature block 420 is mounted.
  • the low-temperature block 420 may be placed on the tube.
  • the tube 40 may have a first end coupled to the first plate 10 and a second end that is opposite to the one end.
  • the brazing may be performed at a position adjacent to the first end.
  • the low-temperature block 420 may be installed adjacent to the second end.
  • the low-temperature block 420 may be installed to surround the second end.
  • the low-temperature block 420 may reduce an effect of high temperature on a region to be pinched off during the blazing process as much as possible.
  • the low-temperature block 420 may not unnecessarily absorb heat required for the blazing process.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • the aforementioned tube may be a copper tube 401.
  • the low-temperature block 420 may be interlocked with a cooling module 421.
  • the low-temperature block 420 may receive cooling water or a refrigerant from the cooling module 421.
  • the low-temperature block 420 may cool the second end of the tube.
  • the low-temperature block 420 may allow high-temperature heat of the first end of the tube to have a small effect on the second end of the tube.
  • the position at which the pinch-off is performed in the tube may be maintained at a temperature of about 150 degrees or less even while the brazing is performed, by using a cooling action due to the low-temperature block 420.
  • the position at which the pinch-off is performed may be a position that is twice or more than twice a diameter of the tube from the first plate 10 in a height direction of the vacuum space 50.
  • the second end and the position at which the pinch-off is performed may be thermally conducted to each other.
  • the low-temperature block 420 may circulate the cooling fluid together with the cooling module 421.
  • a flow tube 422 through which the fluid flows may be provided in the low-temperature block 420.
  • the cooling water or refrigerant may flow from the cooling module 421.
  • other methods may be applied.
  • a thermoelectric module may be provided in the low-temperature block 420 to apply power to the thermoelectric module.
  • a porous material having a material having high latent heat may be used for the low-temperature block 420.
  • the porous material may be a fiber, and the material having the high latent heat may be water.
  • the tube 40 may be bonded to the plate in at least one of the component preparation process or the component assembly process.
  • the brazing may be performed thereafter (S6).
  • the brazing may be performed by high-frequency brazing.
  • Fig. 21 is a view illustrating a state in which the brazing is performed.
  • the high-temperature heat due to the brazing is generated in the first end and an area adjacent to the first end.
  • a heating tube 423 may be provided for the brazing.
  • the heating tube 423 may operate at a high frequency. Heat may be absorbed using the cooling module 421 and the low-temperature block 420. In the second end, an effect of the high-temperature heat of the first end may be reduced. Referring to Fig. 22, it is seen that a seal is provided at the first end and the area adjacent to the first end.
  • the brazing process (S6) illustrated in Fig. 21 may be performed before the vacuum exhaust process is performed.
  • the tube 40 may be bonded to at least one of the first or second plate 10 or 20.
  • the tube 40 is bonded to the first plate 10, that is, the first plate 10, but is not limited thereto.
  • the tube 40 may be coupled to the second plate 20.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • a jig separation (S7) and/or an exhaust process (S8) may be performed.
  • the oxide may be generated on the surface of the tube 40 under the high-temperature atmosphere of the exhaust process.
  • the low-temperature block 420 may be installed on the surface of the tube. Unlike the coupling process, the low-temperature block 420 may directly wrap the portion of the tube, at which the pinch-off is performed. In the exhaust process, the low-temperature block 420 may be placed at a different position of the tube when compared to the coupling process. This is done because the exhaust process receives heat from the high-temperature atmosphere of the exhaust furnace rather than the heat conduction through the tube 40. In the exhaust process, since the position at which the pinch-off is performed may be directly cooled, a cooling load of the low-temperature block 420 may be reduced.
  • Fig. 23 is a view illustrating a state in which the filler metal is melted.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • An example of the aforementioned tube may be a copper tube 401.
  • the aforementioned oxide may be copper oxide.
  • the low-temperature block 420 may be disposed on an outer surface of the body of the tube 40. In the exhaust process, the low-temperature block 420 may be disposed around the tube 40. In the coupling process, the low-temperature block 420 may be inserted and disposed at the end of the tube 40. In the coupling process, at least a portion of the low-temperature block 420 may be disposed to be inserted into an opened inner surface of the tube 40. As described above, the low-temperature block 420 may be disposed at different positions as necessary.
  • the position at which the pinch-off is performed in the tube may be maintained at a temperature of about 150 degrees or less.
  • An internal temperature atmosphere of the exhaust passage may be about 200 degrees or more.
  • the tube 40 may be closed after the vacuum exhaust process is completed.
  • the tube 40 may be an exhaust port for discharging the internal air of the vacuum space 50.
  • the tube 40 may be pinched off to seal the tube 40 (S9).
  • Fig. 24 is a view for explaining the pinch-off process. Referring to Fig. 24, it is confirmed that the tube 40 is cut and/or sealed by pressing the tube 40 using a pinch-off device 433. It is seen that the tube is compressed on the portion, which is pinched off, by the pinch-off device 433 to provide the pinch-off bonding portion 430.
  • the pinch-off bonding portion 430 forms at least one predetermined line by the pinch-off device 433.
  • opposite surfaces of the tube are strongly bonded to each other through ionic bonding between atoms.
  • the oxide may not exist on the inner surface of the tube. There is an advantage of high sealing reliability according to the pinch-off.
  • the tube 40 may extend toward a first space in the height direction of the vacuum space and may have a predetermined height.
  • Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
  • An example of the aforementioned tube may be a copper tube 401.
  • the vacuum adiabatic body that is capable of being applied to real life may be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Optics & Photonics (AREA)
  • Thermal Insulation (AREA)

Abstract

Un corps adiabatique sous vide selon un mode de réalisation peut comprendre une première plaque, une seconde plaque et un joint qui scelle un espace entre la première plaque et la seconde plaque. Facultativement, le corps adiabatique sous vide selon un mode de réalisation peut comprendre un support qui maintient un espace sous vide. Facultativement, le corps adiabatique sous vide selon un mode de réalisation peut comprendre une résistance de transfert de chaleur qui réduit une quantité de transfert de chaleur entre la première plaque et la seconde plaque. Facultativement, le corps adiabatique sous vide peut comprendre une partie de couplage de composant reliée à au moins l'une de la première ou de la seconde plaque de telle sorte qu'un composant est couplé à celle-ci. Par conséquent, le corps adiabatique sous vide pouvant atteindre l'objectif industriel peut être fourni.
PCT/KR2021/015490 2020-11-02 2021-11-01 Procédé de fabrication d'un corps adiabatique sous vide WO2022092924A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08207138A (ja) * 1995-02-06 1996-08-13 Nichirin:Kk 配管用円筒体の溶着方法
US6109712A (en) * 1998-07-16 2000-08-29 Maytag Corporation Integrated vacuum panel insulation for thermal cabinet structures
JP2011033079A (ja) * 2009-07-30 2011-02-17 Zojirushi Corp 断熱パネルおよびその製造方法
KR20150046866A (ko) * 2013-10-23 2015-05-04 이경은 허니콤 구조를 갖는 진공 패널 및 그 제조방법
KR101789089B1 (ko) * 2016-03-17 2017-10-23 윤용상 진공 단열 패널

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150109725A (ko) 2014-03-20 2015-10-02 주식회사 히타치엘지 데이터 스토리지 코리아 광 디스크 기반 아카이브 시스템에서 데이터 관리 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08207138A (ja) * 1995-02-06 1996-08-13 Nichirin:Kk 配管用円筒体の溶着方法
US6109712A (en) * 1998-07-16 2000-08-29 Maytag Corporation Integrated vacuum panel insulation for thermal cabinet structures
JP2011033079A (ja) * 2009-07-30 2011-02-17 Zojirushi Corp 断熱パネルおよびその製造方法
KR20150046866A (ko) * 2013-10-23 2015-05-04 이경은 허니콤 구조를 갖는 진공 패널 및 그 제조방법
KR101789089B1 (ko) * 2016-03-17 2017-10-23 윤용상 진공 단열 패널

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