WO2015033717A1 - 真空断熱材、断熱箱、及び真空断熱材の製造方法 - Google Patents
真空断熱材、断熱箱、及び真空断熱材の製造方法 Download PDFInfo
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- WO2015033717A1 WO2015033717A1 PCT/JP2014/070401 JP2014070401W WO2015033717A1 WO 2015033717 A1 WO2015033717 A1 WO 2015033717A1 JP 2014070401 W JP2014070401 W JP 2014070401W WO 2015033717 A1 WO2015033717 A1 WO 2015033717A1
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- WIPO (PCT)
- Prior art keywords
- heat insulating
- outer packaging
- core material
- insulating material
- vacuum heat
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000012774 insulation material Substances 0.000 title description 3
- 239000011162 core material Substances 0.000 claims abstract description 91
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims description 89
- 239000005022 packaging material Substances 0.000 claims description 86
- 238000003466 welding Methods 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000011491 glass wool Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000004806 packaging method and process Methods 0.000 abstract 5
- 230000007246 mechanism Effects 0.000 description 21
- 239000003463 adsorbent Substances 0.000 description 8
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- 238000001035 drying Methods 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
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- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 208000016509 ear folding Diseases 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
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- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- B32B3/04—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 at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
-
- 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
-
- 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
- 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
-
- 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
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
Definitions
- the present invention relates to a vacuum heat insulating material, a heat insulating box, and a method for manufacturing a vacuum heat insulating material.
- a core material made of an aggregate of glass fibers is covered with an outer packaging material having a gas barrier property, and the inside of the outer packaging material is sealed under reduced pressure.
- This vacuum heat insulating material inserts a core material previously formed into a board shape by a hot press into an outer packaging material formed into a bag shape, depressurizes the inside of the outer packaging material, and hermetically seals the opening by heat welding. It is produced by.
- the conventional vacuum heat insulating material includes a heat insulating material formed by compacting a fibrous material with an organic binder, and a laminate film formed by laminating metal foil layers, and the edge of the laminate film is sealed.
- a heat insulating material formed by compacting a fibrous material with an organic binder and a laminate film formed by laminating metal foil layers, and the edge of the laminate film is sealed.
- the inside is decompressed (see, for example, Patent Document 2).
- the vacuum heat insulating material includes a core material made of a fiber assembly and an outer packaging material that covers the core material, and the inside of the outer packaging material is sealed under reduced pressure.
- the volume of the fiber assembly used for the core material changes greatly before and after the inside of the outer packaging material is sealed under reduced pressure. For this reason, when inserting a core material into an outer packaging material, it is necessary to make the outer packaging material significantly larger than the core material. Accordingly, after the inside of the outer packaging material is reduced in pressure and sealed, an excessive ear portion in which the core material does not exist largely remains on the peripheral edge portion of the vacuum heat insulating material.
- Patent Document 1 In order to reduce the volume change of the core material before and after the inside of the outer packaging material is sealed under reduced pressure, as described in Patent Document 1, a method of pre-forming the core material into a board shape by hot pressing, Patent A method of binding a fiber assembly using a binder such as an organic binder as described in Document 2, and an inner packaging material (inner bag) as described in Patent Document 3 There is a method of preliminarily sealing the core material under reduced pressure.
- these methods when these methods are used, the power cost for heating the core material and the material cost of the binder and the inner packaging material increase. For this reason, there existed a problem that a vacuum heat insulating material could not be obtained cheaply.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vacuum heat insulating material, a heat insulating box, and a vacuum heat insulating material manufacturing method that can be obtained at low cost.
- the method for manufacturing a vacuum heat insulating material according to the present invention includes: coating a core material made of a fiber assembly with an outer packaging material; and compressing the core material and the outer packaging material together with an external force before decompressing the inside of the outer packaging material.
- the core material is in a compressed state where the thickness is 1/10 or less of that before compression, and in the compressed state, a welding seal portion is formed on at least two opposite sides of the peripheral portion of the outer packaging material, and the welding is performed. After the seal portion is formed, the inside of the outer packaging material is decompressed and sealed.
- the vacuum heat insulating material according to the present invention includes a core material made of a fiber assembly and an outer packaging material that covers the core material, and the inside of the outer packaging material is hermetically sealed under reduced pressure, and the total thickness of the heat insulating material is 10 mm or more.
- the outer packaging material has a welding seal portion at a peripheral edge, and at least two opposite sides of the peripheral edge of the outer packaging material, the welding seal portion and the core material The welding seal portion is fixed along the core material shape, and the thickness of the core material under atmospheric pressure when the core material is taken out from the outer packaging material Is 10 times or more the thickness of the heat insulating material.
- the present invention it is possible to reduce the width of the ear portion in the peripheral portion of the vacuum heat insulating material while suppressing an increase in power cost and material cost. Therefore, since the material cost of the outer packaging material can be reduced, the vacuum heat insulating material can be obtained at a low cost.
- FIG. 1 is a cross-sectional view showing a schematic configuration of a vacuum heat insulating material 1 according to the present embodiment.
- the dimensional relationship and shape of each component may differ from the actual ones. Specific dimensions and the like of each component should be determined in consideration of the following description.
- the vacuum heat insulating material 1 includes a core material 10 made of a fiber assembly, two outer packaging materials 20, 21 having gas barrier properties and covering both surfaces of the core material 10, and an outer packaging material 20. , 21 and a moisture adsorbent 30 that adsorbs moisture and suppresses deterioration over time of the core material 10 and the like.
- the internal spaces of the outer packaging materials 20 and 21 are sealed under reduced pressure by sealing the opening in a state where the pressure is reduced to a degree of vacuum of about 1 to 3 Pa. Sealing of the opening is performed by welding the peripheral portions of the outer packaging materials 20 and 21 by heat sealing or the like to form the welding seal portion 40.
- the vacuum heat insulating material 1 has a substantially rectangular flat plate shape as a whole.
- the outer packaging materials 20 and 21 are outer packaging materials used for existing vacuum heat insulating materials, and are laminated films having a multilayer structure.
- This multilayer structure has, for example, a structure in which a polyethylene layer, an aluminum vapor deposition layer, a polyethylene terephthalate layer, and an outermost stretched nylon layer are laminated in order from the inner side (core material 10 side).
- the configuration of the outer packaging materials 20 and 21 is not limited to the above configuration, and may include an alumina vapor deposition layer, an ethylene-vinyl alcohol layer, and a polypropylene layer.
- the outer packaging materials 20 and 21 are not particularly limited in configuration as long as they have gas barrier properties.
- the moisture adsorbent 30 is made of, for example, calcium oxide (CaO) inserted in a bag having good air permeability.
- the water adsorbent 30 is not limited to CaO alone, and a water adsorbent such as zeolite can be used.
- the core material 10 has a configuration in which fiber aggregates such as glass wool are laminated.
- the core material 10 has a thickness of 10 mm or more (for example, 50 mm or less) under atmospheric pressure in the vacuum heat insulating material 1 after completion. That is, the vacuum heat insulating material 1 has a thickness of 10 mm or more as a whole under atmospheric pressure. If the core material 10 is taken out from the outer packaging materials 20 and 21, the thickness of the core material 10 under atmospheric pressure is 10 times or more (for example, 20 times or less) of the thickness of the vacuum heat insulating material 1.
- the fiber aggregate is generally manufactured by a centrifugal method if it is glass wool, and is manufactured by a spunbond method if it is a resin fiber, but the manufacturing method of the fiber aggregate is not particularly limited. .
- the fiber assembly constituting the core material 10 is directly covered with the outer packaging material 20 without using an inner packaging material such as an inner bag. That is, in the vacuum heat insulating material 1, the fiber assembly constituting the core material 10 is in direct contact with the inner surface of the outer packaging material 20. Further, the core material 10 does not contain a binder that binds the fiber assembly.
- the welding seal portion 40 is formed on at least three sides (for example, four sides) of the peripheral portions (ear portions) of the outer packaging materials 20 and 21.
- the welding seal portion 40 is formed without any breaks over the entire circumference of the peripheral edge portions of the outer packaging materials 20 and 21.
- the distance A between the welding seal part 40 and the core material 10 is 5 mm or less (for example, 1 mm or more) on at least two opposite sides of the peripheral parts of the outer packaging materials 20 and 21.
- the welding seal portion 40 is fixed along the shape of the core material 10.
- 2 to 4 are diagrams showing the manufacturing process of the vacuum heat insulating material 1.
- 2 to 4 also show the configuration of the processing apparatus 50 used in the manufacturing process.
- the processing apparatus 50 includes a compression mechanism 51 and welding mechanisms 52a and 52b.
- the compression mechanism 51 integrally compresses and compresses the core material 10 and the outer packaging materials 20 and 21 covering the core material 10.
- the welding mechanisms 52a and 52b are configured to place the welding seal portion 40 on two opposite sides of the peripheral portions of the outer packaging materials 20 and 21 in a state where the core material 10 and the outer packaging materials 20 and 21 are compressed by the compression mechanism 51. To form.
- the welding mechanisms 52a and 52b are disposed on both sides of the compression mechanism 51. Further, the welding mechanisms 52a and 52b are provided in the compression mechanism 51 so that the welding seal portion 40 can be formed in the vicinity of the core material 10 in a state where the core material 10 and the outer packaging materials 20 and 21 are compressed by the compression mechanism 51. Proximity is provided. For example, the welding mechanisms 52a and 52b can form the welding seal part 40 in which the distance A between the welding seal part 40 and the core material 10 is 5 mm or less.
- the core material 10 is processed into a necessary width and length as the vacuum heat insulating material 1, and both surfaces (upper surface and lower surface) of the core material 10 are 2. It arrange
- the thickness T1 of the core material 10 at this time is 10 times or more compared with the thickness of the vacuum heat insulating material 1 after completion (or the thickness of the core material 10).
- the core member 10 and the outer packaging materials 20, 21 are mechanically compressed and compressed integrally from both outer surfaces of the outer packaging materials 20, 21 by the compression mechanism 51 (pressure compression process).
- the pressure compression process is performed in an atmospheric pressure atmosphere.
- the pressure at the time of compression is preferably 0.10 MPa or more equivalent to atmospheric pressure, and more preferably 0.17 MPa or more.
- the thickness T2 of the core material 10 in the compressed state is 1/10 or less (for example, 1/20 or more) of the thickness T1 of the core material 10 before compression under atmospheric pressure.
- the integral thickness of the core material 10 and the outer packaging materials 20 and 21 in the compressed state is substantially the same as the thickness of the vacuum heat insulating material 1 after completion.
- the peripheral portions of the outer packaging materials 20 and 21 are formed by the welding mechanism 52 a.
- sticker part 40 is formed in one side of them (welding seal
- the welding seal portion 40 is formed on the other one side of the peripheral portions of the outer packaging materials 20 and 21 opposite to the one side by the welding mechanism 52b.
- These welding seal portions 40 may be formed at the same time.
- these welding seal parts 40 are formed so that the distance A with respect to the core material 10 may be 5 mm or less (for example, 1 mm or more), for example.
- the welding seal portion forming step is performed in an atmospheric pressure atmosphere.
- the welding seal portions 40 By forming the welding seal portions 40 on the two opposite sides, the core material 10 and the outer packaging materials 20 and 21 are integrated, and the compressed state of the core material 10 is maintained even when the pressure applied by the compression mechanism 51 is released. .
- the welding seal portion 40 may be formed on three or more sides of the outer packaging materials 20, 21 as long as an opening is secured in a part of the peripheral portion of the outer packaging materials 20, 21.
- the pressurization by the compression mechanism 51 is released, and the integrated core material 10 and outer packaging materials 20 and 21 are taken out from the processing apparatus 50.
- moisture content from the core material 10 and the outer packaging materials 20 and 21 is performed.
- a drying process is performed on the conditions which can remove the water
- the conditions of a drying process are not limited to this, What is necessary is just the conditions which can remove the water
- moisture adsorbent 30 is inserted into the internal space of the outer packaging materials 20 and 21 (moisture adsorbent insertion step).
- the moisture adsorbent insertion step is not limited to being performed after the drying step, and may be performed before the drying step or before the pressure compression step.
- the inside of the outer packaging materials 20 and 21 is depressurized to a degree of vacuum of about 1 to 3 Pa, and a heat seal or the like is applied to the opening (for example, sides other than the two sides where the welded seal portion 40 is already formed) in the depressurized state
- a heat seal or the like is applied to the opening (for example, sides other than the two sides where the welded seal portion 40 is already formed) in the depressurized state
- the welding seal portion 40 is formed, and the inside of the outer packaging materials 20 and 21 is sealed under reduced pressure (a reduced pressure sealing step).
- the welding seal portion 40 formed in the vacuum sealing step may also be formed so that the distance from the core material 10 is 5 mm or less.
- the vacuum heat insulating material 1 is obtained through the above steps.
- the core material 10 and the outer packaging materials 20 and 21 are integrally compressed by an external force, and the thickness of the core material 10 is 1 before compression.
- the welded seal portion 40 is formed on at least two opposing sides of the peripheral portions of the outer packaging materials 20 and 21 in the compressed state.
- the distance A of the welding seal part 40 and the core material 10 can be shortened in at least two opposing sides of the peripheral parts of the outer packaging materials 20 and 21.
- the distance A can be 5 mm or less.
- edge part in which the core material 10 does not exist in the peripheral part of the vacuum heat insulating material 1 can be reduced, the material cost of the outer packaging materials 20 and 21 can be reduced. Moreover, since the width
- the vacuum heat insulating material 1 of the present embodiment is set to, for example, 5 mm or less on at least two opposing sides of the peripheral portions of the outer packaging materials 20 and 21. it can.
- edge part in which the core material 10 does not exist can be reduced rather than a general vacuum heat insulating material, the usage-amount of the outer packaging materials 20 and 21 can be reduced, and the outer packaging materials 20 and 21 can be reduced. Material costs can be reduced. Therefore, according to this Embodiment, the vacuum heat insulating material 1 can be obtained cheaply.
- the distance A between the welded seal portion 40 and the core material 10 can be shortened (for example, the distance A can be 5 mm or less) on at least two opposite sides.
- the action of the core material 10 trying to expand due to the restoring force can be suppressed by the outer packaging materials 20 and 21 and the welding seal portion 40.
- the integral thickness of the core material 10 and the outer packaging materials 20, 21 and the thickness of the vacuum heat insulating material 1 after completion (after pressure reduction sealing) Can be substantially matched.
- the core material is preliminarily sealed under reduced pressure using a method in which the core material is heated and pressed into a board shape in advance, a method in which the fiber assembly is bound using a binder, an inner packaging material, or the like. Even without using a method or the like, the volume change of the core material 10 before and after sealing the inside of the outer packaging materials 20 and 21 under reduced pressure can be reduced. Therefore, it is possible to suppress an increase in power costs for heating the core material and material costs for the binder and the encapsulating material. Thereby, according to this Embodiment, the vacuum heat insulating material 1 can be obtained cheaply.
- FIG. 5 is a cross-sectional view showing a schematic configuration of the vacuum heat insulating material 2 according to the present embodiment.
- symbol is attached
- the width B on one side of the welding seal portion 40 (for example, all the welding seal portions 40 formed on the four sides of the peripheral portions of the outer packaging materials 20 and 21) is 50 mm or more ( For example, it is characterized in that it is 100 mm or less. That is, in the present embodiment, the width B of the welding seal portion 40 is set to 50 mm or more in the welding seal portion forming step or the vacuum sealing step in the manufacturing process of the vacuum heat insulating material 2.
- the structure of the other part of the vacuum heat insulating material 2 is the same as that of the vacuum heat insulating material 1 of the first embodiment.
- the fiber length of a general fiber assembly used as the core material 10 is about 20 mm.
- the width B of the welding seal part 40 can be made sufficiently larger than the fiber length of the core material 10 by setting the width B of the welding seal part 40 to 50 mm or more. For this reason, when forming the welding seal portion 40 using the welding mechanism 52b or the like, even if the fibers of the core material 10 are bitten into the welding seal portion 40, vacuum leakage occurs from the biting position of the fibers. Can be prevented. Therefore, according to the present embodiment, in addition to obtaining the same effect as in the first embodiment, it is possible to obtain the vacuum heat insulating material 2 with higher reliability.
- FIG. 6 is a cross-sectional view showing a schematic configuration of the heat insulating box 3 according to the present embodiment.
- a heat insulating box of a refrigerator will be described as an example.
- the heat insulating box 3 has an inner box 60 and an outer box 61.
- the vacuum heat insulating material 1 (or the vacuum heat insulating material 2) is disposed.
- the vacuum heat insulating material 1 is disposed in close contact with the outer wall surface of the inner box 60, for example.
- a portion other than the vacuum heat insulating material 1 is filled with a urethane foam heat insulating material 62. Since the other part of the heat insulation box 3 is the same as that of a general refrigerator heat insulation box, its illustration and description are omitted.
- the heat insulating box 3 can be obtained at low cost. Moreover, in this Embodiment, since the vacuum heat insulating material 1 which has high heat insulation performance compared with the urethane foam heat insulating material 62 grade
- the vacuum heat insulating material 1 is in close contact with the outer wall surface of the inner box 60, but the vacuum heat insulating material 1 may be in close contact with the inner wall surface of the outer box 61. Moreover, the vacuum heat insulating material 1 may be arrange
- Embodiment 3 the configuration in which the vacuum heat insulating materials 1 and 2 are used in the heat insulating box 3 of the refrigerator provided with the cold heat source is taken as an example, but the present invention is not limited thereto.
- the vacuum heat insulating materials 1 and 2 can also be used for a heat insulating box with a heat source or a heat insulating box without a cold heat source and a heat source (for example, a cooler box).
- the vacuum heat insulating materials 1 and 2 can be used not only as a heat insulating box but also as a heat insulating member for a cooling device or a heating device such as an air conditioner, a vehicle air conditioner, or a water heater. Moreover, the vacuum heat insulating materials 1 and 2 are used not only for a box having a predetermined shape like a heat insulating box, but also for a heat insulating bag having a deformable outer bag and an inner bag, and other heat insulating containers. Can do.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermal Insulation (AREA)
- Refrigerator Housings (AREA)
- Laminated Bodies (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014316348A AU2014316348B2 (en) | 2013-09-06 | 2014-08-01 | Vacuum thermal insulator, thermal insulation box, and method of manufacturing vacuum thermal insulator |
SG11201510107QA SG11201510107QA (en) | 2013-09-06 | 2014-08-01 | Vacuum thermal insulator, thermal insulation box, and method of manufacturing vacuum thermal insulator |
KR1020167001074A KR20160020535A (ko) | 2013-09-06 | 2014-08-01 | 진공 단열재, 단열 상자 및 진공 단열재의 제조 방법 |
TW103127568A TWI607883B (zh) | 2013-09-06 | 2014-08-12 | Vacuum insulation material, heat insulation box, and vacuum insulation material manufacturing method |
CN201420496654.3U CN204114473U (zh) | 2013-09-06 | 2014-08-29 | 真空隔热材料以及隔热箱 |
CN201410436514.1A CN104455935B (zh) | 2013-09-06 | 2014-08-29 | 真空隔热材料、隔热箱以及真空隔热材料的制造方法 |
HK15107611.7A HK1207146A1 (en) | 2013-09-06 | 2015-08-07 | Vacuum insulation material, insulated box, and method for producing vacuum insulation material |
Applications Claiming Priority (2)
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JP2013-184804 | 2013-09-06 | ||
JP2013184804A JP6132715B2 (ja) | 2013-09-06 | 2013-09-06 | 真空断熱材の製造方法及び断熱箱 |
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WO2015033717A1 true WO2015033717A1 (ja) | 2015-03-12 |
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PCT/JP2014/070401 WO2015033717A1 (ja) | 2013-09-06 | 2014-08-01 | 真空断熱材、断熱箱、及び真空断熱材の製造方法 |
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JP (1) | JP6132715B2 (ko) |
KR (1) | KR20160020535A (ko) |
CN (2) | CN104455935B (ko) |
AU (1) | AU2014316348B2 (ko) |
HK (1) | HK1207146A1 (ko) |
SG (1) | SG11201510107QA (ko) |
TW (1) | TWI607883B (ko) |
WO (1) | WO2015033717A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3327387A4 (en) * | 2015-10-26 | 2018-10-10 | Samsung Electronics Co., Ltd. | Vacuum insulation material, vacuum insulation material manufacturing method, and refrigerator including vacuum insulation material |
Families Citing this family (9)
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AU2015407161B2 (en) * | 2015-08-26 | 2019-04-18 | Mitsubishi Electric Corporation | Vacuum thermal insulator and refrigerator |
DE102015122756A1 (de) * | 2015-12-23 | 2017-06-29 | Saint-Gobain Isover | Verfahren zur Herstellung von Vakuum-Isolations-Paneelen |
KR101845899B1 (ko) * | 2016-02-01 | 2018-04-05 | 주식회사 케이씨씨 | 진공단열재 제조방법 및 제조장치 |
US10593967B2 (en) | 2016-06-30 | 2020-03-17 | Honeywell International Inc. | Modulated thermal conductance thermal enclosure |
US11549635B2 (en) * | 2016-06-30 | 2023-01-10 | Intelligent Energy Limited | Thermal enclosure |
CN106764253A (zh) * | 2016-11-28 | 2017-05-31 | 王郁倩 | 一种无折边真空绝热材料及制备方法 |
CN110892187B (zh) * | 2017-07-25 | 2021-08-27 | 三菱电机株式会社 | 真空隔热件、隔热箱以及真空隔热件的制造方法 |
JP2020122631A (ja) * | 2019-01-31 | 2020-08-13 | 東芝ライフスタイル株式会社 | 冷蔵庫、及び真空断熱パネル |
KR102211452B1 (ko) * | 2020-04-01 | 2021-02-02 | 전순복 | 진공단열재 제조 장치와 제조 방법 및 상기 장치와 방법에 의하여 만들어진 진공단열재 |
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2013
- 2013-09-06 JP JP2013184804A patent/JP6132715B2/ja active Active
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2014
- 2014-08-01 AU AU2014316348A patent/AU2014316348B2/en active Active
- 2014-08-01 KR KR1020167001074A patent/KR20160020535A/ko active Search and Examination
- 2014-08-01 SG SG11201510107QA patent/SG11201510107QA/en unknown
- 2014-08-01 WO PCT/JP2014/070401 patent/WO2015033717A1/ja active Application Filing
- 2014-08-12 TW TW103127568A patent/TWI607883B/zh active
- 2014-08-29 CN CN201410436514.1A patent/CN104455935B/zh active Active
- 2014-08-29 CN CN201420496654.3U patent/CN204114473U/zh not_active Expired - Fee Related
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2015
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JP2006177497A (ja) * | 2004-12-24 | 2006-07-06 | Mitsubishi Electric Corp | 真空断熱材、及び、その製造方法、並びに、その真空断熱材を用いた断熱箱体 |
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JP2008249003A (ja) * | 2007-03-30 | 2008-10-16 | Hitachi Appliances Inc | 真空断熱パネル及びそれを備えた機器 |
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Also Published As
Publication number | Publication date |
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SG11201510107QA (en) | 2016-04-28 |
AU2014316348B2 (en) | 2016-12-01 |
KR20160020535A (ko) | 2016-02-23 |
TW201524784A (zh) | 2015-07-01 |
JP2015052337A (ja) | 2015-03-19 |
CN104455935B (zh) | 2016-10-05 |
CN204114473U (zh) | 2015-01-21 |
HK1207146A1 (en) | 2016-01-22 |
AU2014316348A1 (en) | 2016-01-07 |
TWI607883B (zh) | 2017-12-11 |
JP6132715B2 (ja) | 2017-05-24 |
CN104455935A (zh) | 2015-03-25 |
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