TWI244911B - Vacuum heat insulator, hot insulating device using vacuum heat insulator, and electric water heater - Google Patents

Abstract

In this vacuum heat insulator, an excellent heat insulating performance is obtained even at high temperature, and this excellent heat insulating performance is maintained for a long period. The hot insulating device and electric water heater using this vacuum heat insulator exhibit an excellent hot insulating performance, and are decreased in the power consumption for hot insulation. The vacuum heat insulator includes a laminate bag, and an insulating core placed in the laminate bag, and the inside of the laminate bag is evacuated in a vacuum state. The laminate bag is made of a laminate film. The laminate film includes a support layer, a deposition layer evaporated on the surface of the support layer, a protective layer placed at the surface side of the deposition layer, and a seal layer placed at the back side of the deposition layer. The deposition layer is formed of at least one material of metal and metal oxide. In this laminate film, (i) the support layer has a plastic film having a glass transition point of 87 DEG C or higher, (ii) the protective layer has a plastic film having a glass transition point of 87 DEG C or higher, (iii) the deposition layer has a property of transmitting high frequency magnetic field, or (iv) the laminate bag has a seal portion formed by junction of the seal layer, and the laminate film further as a metal foil placed at a position excluding the seal portion.

Description

1244911 IX. Description of the invention: L Inventor's technical field 3 ^ Field of the invention The present invention relates to the use of thermos bottles, electric water heaters, electric cookers, 5 boxes of ice, warmers, heating equipment, cooling equipment, induction heaters Vacuum heat insulator of the heat insulation part of heating, cooking equipment, heating and heat preservation equipment. L Prior Art 3 Background of the Invention # Conventional thermal insulation materials include glass fibers, glass wool, and plastic foams such as foamed polyurethane and foamed vinyl. Glass fibers have a thermal conductivity of about 0.035 kcal / mh ° C at 25 ° c. It has been revealed that a better thermal insulation material than these fiber and foam materials is vacuum insulation. Glass fibers and expanded styrene generally have a thermal conductivity of about 5 times or more that of a vacuum insulation. 15 This conventional vacuum insulation body is provided with a gas barrier laminated film bag and a heat insulating core material filled in the laminated film bag, and the laminated film bag B is kept in a vacuum exhaust state . Laminated film bag with gas barrier property Laminated body with plastic film and gas barrier layer. The gas barrier layer is tied by the user to an aluminum foil having a thickness of about 6 // m to about 10 // m, or an aluminum vapor deposition layer provided on the surface of the plastic film. Plastic film is made of polyethylene-terephthalate or polypropylene. For thermal insulation core material-It is a fine powder of silicon dioxide or the like, or a molded body of polyurethane foam. The gas barrier layer in the vacuum insulation has a function to prevent the outside air from penetrating into the laminated film bag through the laminated film bag. 5 1244911 This kind of conventional vacuum heat insulator is used for heat insulation of low-temperature mist surrounding gas in refrigerators or cold storage rooms. The laminated film 6 shown in FIG. 6 is not a conventional vacuum insulation material. FIG. T 'The laminated film 5 has a protective layer and a gas barrier layer, and the mouth layer 4 ° gas barrier layer has a substrate 3, and The layers 2 are steamed on the surface of the aforementioned substrate 3. The protective layer 丄 is provided on the outermost layer. The heat and fusion layer 4 has a function for sealing the laminated film into a bag shape by heat fusion. The protective layer works with a thickness of 15 // m of poly (yamide) _6 (trade name nylon) plastic film. The glass transition temperature of 6-nylon is thief. The thermal fusion layer 4 is a polypropylene plastic film with a thickness of 10 ° / 50 // 111. The vapor deposition layer 2 is made of aluminum. The vapor-deposited film thickness of this vapor-deposited layer was 50 nm. The base layer 3 uses polyethylene terephthalate (PET) or polypropylene with a thickness of about 25 // m. This conventional Zhiluo deposit has the problem that it cannot be used under the temperature. For example, when a vacuum insulator is used at a temperature of 9 ° C or higher, the plastic film supporting the vapor deposition layer will undergo thermal expansion or thermal contraction, and due to the difference in expansion rate between the plastic film and the vapor deposition material, the vapor deposition material A crack may occur on the surface. Through this cracked portion, the air penetrates the inside of the vacuum insulation body, and the internal pressure of the vacuum insulation body rises. As a result, the insulation performance of the vacuum insulation body is reduced. In this way, when thermal stress is applied to the conventional vacuum insulation At the time of heating, the thermal insulation performance of the vacuum insulation body will be deteriorated. As the gas molecules become high temperature, their kinetic energy will increase geometrically. Therefore, at a high temperature close to 10 (TC), the thickness of the thin vapor deposition layer is therefore kinetic energy. Degradation occurs and the function of suppressing gas penetration decreases. Therefore, the vacuum inside the vacuum insulator cannot be maintained. As a result, the thermal insulation performance of the vacuum insulator is reduced to 1244911. As a gas barrier layer, an evaporation layer such as aluminum vapor deposition is used. Vacuum Insulator / Polyethylene terephthalate (PET) with protective layer adhered to the vapor-deposited substrate or vapor-deposited surface. This PET film Due to the poor thermal stability of the 5 size, and the thickness of the vapor deposition layer is very thin, the vapor deposition layer will be damaged due to the thermal contraction and expansion of PET. Therefore, the gas insulation of the vacuum insulation is reduced, making it impossible to maintain the vacuum insulation. In the vacuum, the thermal insulation performance deteriorates. • On the other hand, in a conventional vacuum insulation body having an aluminum foil, the heat conduction through the aluminum foil 10 is large. Therefore, the aluminum foil formed on one surface of the vacuum insulation body and the In the structure where the aluminum foils on the other side are in contact with each other, or the structure with a short distance between them, heat will be conducted from one side to the other side through the aluminum foil, that is, heat will not be transmitted to the filled surface. The heat insulation core material inside the laminated film bag. As a result, the vacuum insulation body may not be able to fully develop the insulation performance. The conventional vacuum insulation body with aluminum foil cannot be used as an induction heating B cooking device, or, induction Insulation body of induction heating equipment such as electric cookers. The reason is that the aluminum foil itself is heated by induction heating, so it has aluminum. The vacuum heat insulator does not have the function of a heat insulator. 20 The user of the conventional thermos has a thermos (magic bottle), etc. The conventional thermos is equipped with double glass or stainless steel, and the air between them is exhausted. Vacuum. • That is, the conventional vacuum flask has a vacuum double-layer container. Hot or cold water is poured into this vacuum double-layer container to be kept warm or cold. Also, the inner container for heating is set to have a vacuum double-layer container. In the outer container of the double-layer container, a heat preservation cooker 7.1244911 has been proposed. The food is heated in the inner container by a machine such as a cooking furnace), and then, the food reaches After the predetermined temperature, move the inner container containing the food to the outer container for thermal insulation. 5 However, the vacuum double-layer container must be made into a strong container that can withstand the vacuum in the atmosphere. Therefore, a vacuum flask with a vacuum double-layer container is very heavy, and it is quite inconvenient when used in a portable application such as a kettle. In addition, vacuum flasks made of stainless steel can't be heated from the outside of the vacuum double vessel. After the water is heated by other equipment, the heated hot water and the like are transferred to the vacuum double-layer container. In this way, complicated work becomes a necessary process. In addition, although the vacuum double-layer container of glass can inductively heat because it can penetrate through the magnetic field used for induction heating, the glass is not very fragile and easily broken. In addition, other heat insulators such as glass fiber and plastic foam materials have lower heat insulation performance than vacuum double-layer containers. Therefore, the temperature of hot water and the like contained in the interior is likely to drop. A conventional electric water heater includes a container and a heater. An electric water heater with a thermal insulation function includes a container, a heater, and a heat insulator provided around the container. By putting water into the container and connecting the power to the heater, the hot water boils. The electric water heater with insulation function has the function of keeping the hot water _ 20 at a fixed temperature for a long time. The thermal insulators used in this electric water heater with a temperature-maintaining function are inorganic thermal insulators such as glass wool, or reflective insulators using a metal reflector. However, although thermal insulation materials such as glass wool are excellent in thermal properties, they have low thermal insulation properties. Therefore, the conventional electric water heater using glass wool and other heat insulators has a large power consumption because of heat preservation. [Summary of the Invention] Summary of the Invention The vacuum insulation system 5 of the present invention includes a laminated bag and a heat insulating core material provided in the laminated bag. The inside of the aforementioned laminated bag is in a vacuum state which has been evacuated to a vacuum. The laminated bag is formed of a laminated film.

The laminated film has a support layer, a vapor deposition layer deposited on the surface of the support layer, a protective layer provided on the front surface side of the vapor deposition layer, and a sealing layer provided on the back side of the vapor deposition layer. The aforementioned vapor deposition layer is formed of at least one of a metal and a metal oxide. The laminated film has a plastic film selected from (i) the supporting layer has a glass transition temperature of 87 ° C or higher; 15 (ii) the protective layer has a plastic film having a glass transition temperature of 87 ° C or higher; (ni) the foregoing The vapor-deposited layer has a property of penetrating a high-frequency magnetic field; (iv) the aforementioned laminated bag has a sealing portion formed by bonding of the aforementioned sealing layer, and the laminated film further has a position which is provided at a position other than the sealing portion 20. Metal foil; at least one of the characteristics of the group. With the above structure, excellent thermal insulation performance can be obtained even at high temperatures, and the excellent thermal insulation performance can be maintained over a long period of time. In addition, by setting the high temperature device using a vacuum insulator to ON / OFF formula 9 • 1244911, even if thermal stress is applied to the vacuum insulator, the thermal insulation performance of the vacuum insulator does not deteriorate, which is excellent. Thermal insulation performance is maintained. The heat insulator of the present invention includes a container for storing a filling object, and the vacuum heat insulator 5 provided outside the container. With this structure, a heat-preserving device having excellent heat-preserving performance can be obtained. An electric water heater according to the present invention includes a container for storing a liquid, a heater for heating the aforementioned liquid, and the aforementioned vacuum insulator provided around the container. With this configuration, the thermal insulation power can be significantly reduced. 10 Brief Description of Drawings Fig. 1A is a schematic sectional view showing the structure of a vacuum insulator according to a first embodiment of the present invention. Fig. 1B is a schematic sectional view showing the structure of a vacuum insulator according to another embodiment of the present invention. 15 Fig. 2A is a schematic sectional view showing a structure of a vacuum heat insulator according to a second embodiment of the present invention. Fig. 2B is a plan view illustrating a laminated film in the shape of an aluminum foil used in the vacuum insulator of Fig. 2A. Fig. 2C is a schematic cross-sectional view of the structure of a vacuum heat insulator according to another embodiment of the present invention. FIG. 2D is a cross-sectional view illustrating the structure of an aluminum vapor-deposited layer. Fig. 2E is a schematic sectional view showing the structure of a vacuum heat insulator according to another embodiment. Fig. 2F is a detailed sectional view of the aluminum foil of the vacuum insulation body shown in Fig. 2E. Fig. 2G is a schematic cross-sectional view showing a structure of a vacuum insulator according to another embodiment of the present invention. Fig. 3A is a schematic cross-sectional view of the structure of a vacuum heat insulator according to a third embodiment of the present invention. Fig. 3B is a schematic cross-sectional view showing the structure of an induction heater using the vacuum heat insulator shown in Fig. 3A. Fig. 4A is a longitudinal sectional view of a heat preservation device according to a fourth embodiment of the present invention. ί Figure 4B is a sectional view 10 of the vacuum heat insulator of the thermal insulator shown in Figure 4A. Fig. 4C is a cross-sectional view of the laminated film of the warmer shown in Fig. 4A. Figure 4D is a longitudinal sectional view of a heat preservation device in another embodiment of the present invention. Fig. 4E is a sectional view of the laminated film of the heat insulator shown in Fig. 4D. Fig. 5A is a longitudinal sectional view of an electric water heater in a fifth embodiment of the present invention. 15 FIG. 5B is a cross-sectional view of a vacuum insulator used in the electric water heater according to the embodiment of the present invention. Figure 5C is a plan view of a vacuum insulator used in an electric water heater according to an embodiment of the present invention. Fig. 5D is a perspective view of a vacuum 20 heat insulator used in the electric water heater according to the embodiment of the present invention. Fig. 5E is a plan view of a vacuum insulator used in an electric water heater according to an embodiment of the present invention. Fig. 5F is a perspective view of a vacuum insulator used in the electric water heater according to the embodiment of the present invention. 11 1244911 Fig. 6 is a schematic sectional view showing the structure of a conventional vacuum heat insulator. L Real Square Package Mode] Detailed Description of the Preferred Embodiment A typical embodiment of the present invention will be described below. 5 Typical Embodiment 1 A vacuum insulation system according to an embodiment of the present invention uses a plastic film having a glass transition temperature of 87 ° C or higher as a support layer for a vapor-deposited layer formed by vapor-deposited metal or metal oxide. The vapor-deposited layer and the support layer form a gas barrier layer. The vapor-deposited layer forms a gas barrier layer. With this structure, the occurrence of cracks in the vapor-deposited layer is prevented even at a high temperature of 10 °. As a result, in a high-temperature fog environment, a change in the degree of vacuum inside the vacuum heat insulator is prevented, and its excellent heat insulation performance is maintained over a long period of time. A vacuum insulation body according to another embodiment of the present invention includes a laminated film formed by laminating a support layer and a protective layer; the support layer is one side supporting a vapor-bonded layer formed by vaporized metal or metal oxide, and the protective layer is Protect the other side of the steam bond layer. The protective layer is made of a plastic film having a glass transition temperature of 87 ° C or higher. With this structure, the occurrence of cracks in the vapor-deposited layer can be prevented even at high temperatures. As a result, a vacuum thermal insulator having excellent thermal insulation performance can be obtained. 20 A vacuum insulation body according to another embodiment of the present invention includes a laminated film formed by laminating a supporting layer and a protective layer; the supporting layer is one side supporting a vaporized bell layer formed by vapor-depositing a metal or a metal oxide, and the protective layer is Protect the other side of the steam bond layer. The support layer is made of a plastic film having a glass transition temperature of 87 ° C or higher. With this structure, even at high temperatures, the occurrence of cracks in the vapor deposition layer is prevented. As a result, a vacuum thermal insulator having excellent thermal insulation performance can be obtained. A vacuum insulation body according to another embodiment of the present invention includes a layer formed by laminating a first vapor-deposited layer on which a metal or metal oxide is vapor-deposited and a second vapor-deposited layer on which a metal or metal 5 oxide is vapor-deposited. Laminated. The surface of the first vapor deposition layer and the surface of the second vapor deposition layer are adhered to each other. The heat-insulating core material is filled in a bag-shaped package having this layer ^ laminated film, and the opening is sealed. The inside of the bag is evacuated by vacuum. With this structure, cracking of the vapor deposition layer is prevented even at high temperatures. As a result, it is possible to obtain a vacuum thermal insulator having excellent thermal insulation performance. The plastic film is preferably made of polyphenylene sixfide. This poly_benzenesulfur has a high glass transition temperature. Therefore, it is possible to obtain more excellent effects as described above. The plastic film is preferably made of polyethylene naphthalate (PEN, polyethylene 15 naphthalate), polycarbonate SI (polycarbonate), or polyimide. These plastic films have high glass transition temperatures. Therefore, particularly excellent effects can be obtained. Embodiment 1a An embodiment of the present invention will be described below. —20 FIG. 1A is a schematic sectional view showing the structure of this embodiment. The vacuum heat insulator of this embodiment includes a laminated bag 108 and a heat insulating core material 105 filled in the laminated bag 108. The core material 105 uses silicon dioxide powder. The laminated bag 108 includes a support layer 103, a vapor deposition layer 102 vapor-deposited on the support layer 103, a protective layer that protects the vapor deposition layer 102, and a thermal fusion layer 104. 13 1244911 Laminated bag 1G8 is made of laminated film made by laminating each layer. The vapor deposition layer 102 is formed by vapor deposition of a metal or a metal oxide. Bao 4 layer 101 is made of & nylon plastic film; ^ nylon has a glass transition temperature of 5 (TC. Hot-melt layer 104 is a polypropylene film with a thickness of 0.1 mm. The vapor-deposited layer 102 uses a planer; the vapor-deposited layer has a thickness of about 50 nm. The support layer 103 uses a thickness of

25 // m polyphenylene sufide, or 25 "ΪΪ1 polyethylene naphthalate (PEN). The glass transition temperature of polybenzite spring grease is 87 ° C, and polynaphthalene The glass transition temperature of ethyl acid 10 is 121 ° C. The heat-insulating core material 105 forms a thickness of about 10 pits in the finished state. The inside of the laminated bag 108 is a vacuum of 20 Torr (mmHg) or less, that is, It is exhausted to a pressure of about 20 Torr or less. The operation of this embodiment will be described below. The vacuum 15 heat insulator of this embodiment is used as a heat insulation part of a heating cooking appliance and a heating and holding appliance. This embodiment The vacuum heat insulator has a vacuum layer having a thickness of about 10 mm according to the function as the core of the heat insulating core material 105. This vacuum heat insulator has a temperature of about 0.06 kcal / mh ° C (about 0.07 W / m · k) thermal conductivity. In this structure, there are very few 20 air molecules that transfer heat from the high temperature side to the low temperature side. The thermal insulation core 105 uses silicon dioxide powder. The powder of 1 dioxide is at about 25 ° C and the atmospheric pressure is 760 torr (mmHg) has a thermal conductivity of about 10 W / m · k. Therefore, The thermal conductivity in atmospheric pressure is smaller than that of glass fiber. Therefore, even if the vacuum degree in the laminated bag is reduced, the degree of the thermal insulation performance is still small. Therefore, the thermal insulation property has been maintained for a long time. As a result, the vacuum heat insulator can be used for a long time. Among the vacuum heat insulators using plastic film such as polyethylene terephthalate, Guzhi ~ Wang heat insulator, for example, at about 8S ° C When used at high temperature, the thermal expansion or thermal contraction of the four 1G2 support layers 1Q3 will occur. Because the seabass is 40% of the steamed minerals of the bell layer 102, the thermal expansion coefficient of the support layer 103 and the steam will increase. In contrast, the actual value is 87. (: ^ the support layer 1G2 support layer 1G3 uses glass transition temperature r0> mv origin sulfur 'or glass transition temperature 121 The swell of polyethylene naphthalate 10 ° C at ° c makes the support layer 103 102, ⑽㈣ = ⑽㈣ to a very low degree even at a high temperature of about 85t. Therefore, the production of steamed minerals ~ clothing It is prevented. As a result, the steaming function of the steaming layer 102 is formed = as a saki layer ' And the degree of prevention of change in the degree of vacuum can be held. As a result, the vacuum heat insulator of this embodiment can be used as a heat insulator with good high temperature, and it can be maintained after a long period of time. Although using polyphenylene sulfide, or poly plastic 2 :: B, in addition to the above, you can also use [Table 1] as shown in Table 丨 20 The transition temperature of the glass is in the above.

15 1244911

----- polystyrene 87 polyphenylene sufide 87 modified polyphenylene ether 100 ~ 220 cellulose triacetate 107 polyethylene naphthalate ) 121 Polytetrafluoroethylene 127 Polyetherehterketone 143 Polylether nitrile 145 Polycarbonate 150 Polysulfone 190 Polyallyl ( polyallylate) 193 polyStimide (polyetherimide) 217 polyether sulfone 225 polyimide 220 ~ 500 polyimideimide 280 ~ 290 polybenzoimide ° sitting ( polybenzimidazole) 421

Embodiment lb The other embodiment of the present invention will be described. Fig. 1B is a sectional view showing the structure of a vacuum heat insulator according to another embodiment of the present invention. In FIG. 1B, the vacuum insulation body of this embodiment includes a first support layer 103, a first vapor deposition sound vaporized on the first support layer 103, μa, θ, the second support layer 103a ', and the vaporized The second support layer 1 is plated on the first supporting layer 102a. The surface of the first vapor-deposited layer 102 and the surface of the second vapor-deposited layer 102 and 10 were adhered to each other. Using the laminated film laminated in this manner, the laminated bag 109 is shaped like a sheet. The first vapor deposition layer 102 is formed by vapor deposition 16 1244911 of a metal or a metal oxide. Similarly to the first vapor-deposited layer 102, the second vapor-deposited layer 102a is formed by vapor deposition of a metal or a metal oxide. The second support layer 103a has a dual function of serving as a base material for the second vapor deposition layer 102a and as a protective layer. The sealing layer 104, the support layer 103, and the heat insulating core material 105 have the same structures as those described in the aforementioned “Fifth Embodiment”. In this embodiment, the laminated bag 109 has a first vapor-deposited layer 102 and Two layers of the second vapor deposition layer 102a. Therefore, both of the first support layer 103 supporting the first vapor deposition layer 102 and the second support layer 103a supporting the second vapor deposition layer 102a have In order to protect the function of the layer, to protect the two layers of steamed 10-key layer 102 and 102a. Therefore, when a plastic film with a glass transition temperature of 87 ° C or higher is used as the first support layer 103 and the second support When the layer i03a is used, excellent effects equal to or greater than those of the previous embodiment 1a can be obtained. That is, the occurrence of stress can be prevented more effectively. Therefore, even if the vacuum insulator of this embodiment is used at high temperature, it can be steamed. The occurrence of cracks 15 in the plating layer 102 and 102a is still prevented. As a result, the steaming substance forming the steaming layer 102 and 102a can be used as a barrier layer to maintain the function of preventing the change in vacuum. As a result, The vacuum insulation body of this embodiment can be used as The heat insulator of a high-temperature machine can maintain excellent heat insulation performance even after a long period of time. Since the two-layered support layer with the vapor deposition layer is provided, a better effect can be obtained than the foregoing embodiment 20a. Implementation Example lc An experiment for verifying the foregoing Examples 1a and lb was performed, and the results of the experiment were explained. The vacuum insulation sample used in this experiment was made in the following manner 17 1244911. The experimental item 1 has the foregoing Example 1a The structure (the structure of FIG. 1A). That is, the three edges of the laminated film as shown in FIG. 1A are thermally welded in a state where the sealing layer 104 is overlapped on the inside. Rectangular laminated bag 108 with a length of 200 mm and a width of 300 mm with a width of 5 mm. Next, the three tomb powders, which are the thermal insulation core material 105, are filled into the laminated bag 108. In this state, The inside of the laminated bag 108 was evacuated to approximately 0.5 TOL. After that, the remaining openings of the laminated bag 108 were thermally welded. Thus, an experimental sample of a 10-thick vacuum insulator was made. 1. 〇 Shell test sample 2 has the aforementioned properties The structure of Example lb (the structure of Fig. 1B). The three sides of the laminated film shown in Fig. B are thermally welded in a state where the sealing layer 104 is laminated on the inside. In this way, it is made longitudinal. A rectangular laminated bag 100 mm with a width of 300 mm and a horizontal length of 300 mm. 1 Filling the laminate 9 with a powder of earth oxygen as the heat insulating core material 105. In this state, the laminate is laminated The inside of the bag 109 is evacuated to a vacuum of about ο ″. After that, the remaining openings of the laminated bag 109 were hot-melted. In this way, a test sample 2 of a 10 mm thick vacuum heat insulator was produced. The inspection sample 3 has a conventional structure of FIG. 6. That is, as the support layer 3, polyethylene terephthalate (PET) having a thickness of -20 Å is used. Use 6_ & Edge as protective layer 1. The other structures of the test sample 3 have the same structure as the above-mentioned test sample 1. The test sample 1, test sample 2, test sample 2 and test sample 3 'prepared in this manner were subjected to the following measurements. Profit 1 · Measure the pressure inside the vacuum insulator immediately after the production. 18 1244911 Measurement 2: After being left in a fog surrounding at 85 ° C for 3 days, the pressure inside the vacuum insulation is measured. Measurement 3: The pressure inside the vacuum insulation body was measured after being left for 10 days in a fog of 85t. 5 Measurement 4: Measure the pressure inside the vacuum heat insulator after being left in the mist enclosure at 10 ° C for 3 days. Measurement 5: Measure the pressure inside the vacuum heat insulator after being left in the mist enclosure at 10 ° C for 10 days. The method measures the pressure inside the vacuum insulation. That is, when 10 experimental samples are contained in a room and the room is exhausted to a gradual vacuum, the pressure when the shape of the experimental sample changes is measured. That is, the degree of vacuum in the room At the moment when the vacuum degree of the experimental sample is exceeded, due to the difference between the internal and external pressure of the vacuum insulation, the experimental sample is stretched to the outside, and the shape of the vacuum insulation is deformed. The pressure when the external shape of the experimental sample changes is measured 15 The degree of vacuum is torr). The measurement results are shown in Table 2. The following matters can be known from Table 2. (1) A polyethylene naphthalate resin having a glass transition temperature of 121 ° C is used as the support layer 103 or the protective layer 101. The experimental samples (Experimental Samples B, D, " 20 F), even after performing the high temperature endurance test at two temperatures of 85 ° C and 100 ° C, still maintained excellent gas barrier properties, and could maintain Degree of vacuum "(2) Using polyphenylene sulfide resin with a glass transition temperature of 87t as the experimental sample (Experimental Samples A, C) of the support layer 103 or the protective layer 101, even after the high temperature endurance test at 100 ° C Maintains excellent gas barrier properties, 19 1244911 and maintains vacuum. (3) Both the support layer 103 and the protective layer 101 are experimental samples made of polyphenylene sulfide resin with a glass transition temperature of 87 ° C (Experimental Sample E ), Even after the high-temperature endurance test at 85 ° C, it still maintains excellent gas barrier properties and maintains the degree of vacuum. (4) It has two vapor-deposited layers and is provided on both sides of the vapor-deposited layer. The experimental samples (Experimental Samples G, H) of plastic films with a glass transition temperature of 87 ° C maintained a particularly good gas barrier while maintaining vacuum.

[Table 2] Sample N 〇 Initial sample content 85 ° C Loot: 1 A 1 2/2 9/20 or more B 1 1/1 2/2 C 1 1/2 10/20 or more D 1 1/2 2 / 2 E 1 1/1 5/13 F 1 1/1 1/2 2 G 1 1/1 2/4 Η 1 1/1 1/2 3 Comparative Example 1 4/15 20 or more / 20 or more 10 Note 1 Sample Content A · Those who use polysulfide resin as the support layer B: Those who use polyethylene naphthalate resin as the support layer C: Those who use polyphenylene sulfide resin as the protective layer D: Those who use polyethylene naphthalate Resin as the protective layer 15 E: Polyphenylene sulfide resin as the support layer and protective layer F: Polyethylene naphthalate resin as the support layer and protective layer G: Polyphenylene sulfide resin as 2 For the support layer: For those who use polyethylene naphthalate resin as the support layer for 2 layers Note 2 The unit of vacuum degree torr 20 Note 3 Measurement results at 85 ° C and 100 ° C 3 days / 10 days After 20 1244911 As explained above, with the structure of the present invention, even when used at high temperatures, the degree of thermal expansion or thermal contraction of the support layer is still very small. Therefore, occurrence of cracks in the vapor deposition layer is prevented. As a result, the vapor-deposited substance forming the vapor-deposited layer 25 can be used as a barrier layer to maintain the function of preventing a change in the degree of vacuum. As a result, the vacuum heat insulator of the present invention can be used as a heat insulator of a machine having a high temperature, and excellent heat insulation performance can be maintained over a long period of time. Exemplary Embodiment 2 10 A vacuum insulation body according to another exemplary embodiment of the present invention includes a laminated bag, a heat insulating core material provided in the aforementioned laminated bag, and aluminum fl. The aluminum foil is placed between the laminated film and the heat-insulating core material, or in a laminated film. The laminated bag is evacuated to a vacuum state; the heat-insulating core material is placed in the laminated bag in a sealed state. The aforementioned laminated bag is formed of a laminated film having a support layer and a sealing layer including an aluminum vapor-deposited layer. The laminated bag has a heat-sealed portion on at least one side. The aluminum foil is provided in a region other than the heat-sealed portion. With this structure, a vacuum heat insulator having excellent heat insulation performance can be obtained even at high temperatures. 20 The aforementioned support layer is particularly preferably one containing polyethylene naphthalate. With this structure, it is possible to obtain a vacuum heat insulator capable of being insulated for a long time even in a high-temperature atmosphere. The aforementioned laminated film is particularly suitable, which has a first support layer and a first ingot forging layer which is vapor-deposited on the first support layer, and a second support layer and which is vapor-deposited on the second support layer 21 1244911. The second aluminum vapor-deposited layer, and the first aluminum vapor-deposited layer and the second aluminum vapor-deposited layer are laminated in a state facing each other. With this configuration, the situation where gas enters the lamination is prevented, and the gas barrier performance is significantly improved. In addition, even under high-temperature fog, 5 vacuum insulators that can be insulated for a long time can be obtained. The aluminum foil is particularly suitably adhered to the laminate film. This aluminum foil is adhered to the aforementioned laminated film, and is then formed into a predetermined shape by etching. With this structure, a fine-shaped aluminum foil can be accurately set. The result is a high-performance vacuum insulation. 10 The aforementioned aluminum foil is particularly suitably laminated on the aforementioned laminated film. With this structure, processing becomes simple, and a high-performance vacuum insulator can be obtained. The aforementioned aluminum foil is particularly suitably provided between the first aluminum vapor-deposited layer and the second aluminum vapor-deposited layer. With this structure, a vacuum insulator having excellent durability and excellent thermal insulation properties can be obtained. 15 Particularly suitable is a support layer having an aluminum vapor-deposited layer provided between the aforementioned aluminum foil and the aforementioned sealing layer. With this structure, a vacuum heat insulator having excellent durability and excellent heat insulating properties can be obtained. Embodiment 2a A specific embodiment of the present invention will be described below. Fig. 2A is a schematic cross-sectional view showing the structure of the vacuum heat insulator of the embodiment 20; Fig. 2B is a schematic plan view showing the structure of this embodiment. In the vacuum insulation system of this embodiment, two laminated films 202 are used to form a laminated bag. The heat-insulating core material 201 is filled in the laminated bag; that is, the heat-insulating core material 201 is covered with two laminated films 202. In a state where the laminated bag is evacuated to a vacuum, the sealing portion 203 is sealed. As the core material 201, 22 1244911 silicon dioxide powder, pearlite, inorganic material of Yauya cotton woolen cloth, or melamine, polyurethane rhenium, etc. can be used. The user in this embodiment is a powder of synthetic silica. The laminated film 202 has a polyethylene naphthalate film (hereinafter referred to as a PEN film) as a protective layer 207, a polypropylene film as a sealing layer 5 204, a PEN film as a support layer 211, and is vapor-deposited on The support layer 211 is an aluminum evaporation layer 212. The support layer 211 and the aluminum vapor-deposited layer 212 form a gas barrier layer 205. The aluminum foil 206 is laminated between the aforementioned gas barrier layer 205 and the protective layer 207. The thickness of the aluminum foil 206 is about 6 // m. As shown in FIG. 2B, the foil 206 is provided in an area of the laminated film 202 except for at least a portion of one of the sealing portions 203. That is, the aluminum foil 206 is provided in a state where it does not contact the sealing portion 203. An unstretched polypropylene with a thickness of 50 μm was used as the sealing layer 204. The thickness of the aluminum ore deposit layer 212 is about 50 nm. The protective layer 207 uses a PEN film with a thickness of 12 μm. The function of this embodiment will be described below. When the 15-insulation body of this embodiment is assembled into a heating and heat-preserving device such as a thermos, it is true here

Temperature differences occur on both sides of an empty thermal insulator. In other words, one side of the vacuum insulation body is hot water in a state of heat preservation, and its temperature is close to ⑽. c. The actual thermal conductivity of the spear and the money body are proportional to the product of thickness. This embodiment] The product of the thermal conductivity and the thickness in the structure 1 is that the sealing layer 2G4 is 0.001, and the other surface of the vacuum-based heating body is in contact with the outer wall of the thermos flask, and its degree of / plate is to / plate In this state, the heat of the hot water is transmitted to the outside of the thermal insulation concept through the vacuum insulator. In this state, heat conduction exists in both the cross-sectional direction and the surface direction of the vacuum heat insulator. This heat transfer [{W / (m · K)} m]; the name foil 206 is 1.4 [{W / (m · κ)} · m]; 23 1244911 The steam bond layer 212 is 0.012 [{W / (m · K)} · m]; the protective layer 207 is 0 () () 3 [{W / (m · κ)} · m]. That is, the aluminum foil 206 has about 50 times the total heat conduction of the other parts. As a result, when the vacuum insulation body of this embodiment is used, the heat conduction in the surface direction of the vacuum insulation body becomes extremely small. That is, since the aluminum foil does not exist in the sealing portion 203, the heat in which the sealing portion 203 moves in the absence of the aluminum foil is about 1/5 of the central portion where the Ill foil exists. Therefore, as described above, the heat conduction from the surface direction of the vacuum heat insulator of this embodiment is very small. In addition, since the heat insulating core material 201 evacuated to a vacuum exists in the cross-sectional direction of the vacuum heat insulator of this embodiment, the heat conduction in the cross-sectional direction is remarkably small. As a result, a vacuum insulator having significantly excellent heat insulating properties can be obtained. As another example, since the power source of the device using the vacuum insulator is set to ON / OFF state, the vacuum insulator is subjected to temperature stress in daily life. Even if this temperature stress is resisted, the vacuum heat insulator of this embodiment still has excellent temperature stress resistance. That is, a PEN film is used as the support layer 211 on which the aluminum vapor deposition layer 212 is formed. The PEN film 211 has a high melting point and a high glass transition point, and has excellent dimensional stability against temperature. Therefore, when the vacuum insulator is subjected to thermal stress, the difference between the shape change caused by the expansion and contraction of the aluminum vapor deposition layer 212 and the shape change caused by the expansion and contraction of the PEN film itself is small. Therefore, when subjected to thermal stress, the stress on the aluminum vapor deposition layer 212 hardly occurs. That is, even in a high-temperature atmosphere, the suspicion that pores are generated in the aluminum vapor deposition layer 212 is still prevented. As a result, the laminated film 202 having the aluminum vapor-deposited layer 212 not only has a long life but also functions as a gas barrier layer having high reliability of 24 1244911. As described above, with the structure of this embodiment, a vacuum heat insulator having excellent heat insulation performance can be obtained even in high-temperature use. When the laminated film 202 has a polyethylene naphthalate support layer, the support layer has a high melting point and a high glass transition point, and the support layer has excellent dimensional stability against temperature changes, so even in a high-temperature atmosphere In use, the occurrence of pores in the Yuming vapor-deposited layer 212 is still prevented; as a result, it is possible to obtain a vacuum thermal insulation body which has excellent thermal insulation performance at high temperatures. 10 Furthermore, the aluminum foil 206 is formed by etching. That is, after the aluminum foil 206 is adhered to the entire inner side of the protective layer 207, as shown in FIG. 2B, a predetermined portion of the aluminum foil is dissolved and removed by etching. In this case, use an alkaline solution as the etching solution. Since this etching can be finely processed, an aluminum foil having a desired shape can be accurately formed. Therefore, a high-performance vacuum heat insulator can be obtained. Embodiment 2b FIG. 2C is a schematic cross-sectional view of a structure of a vacuum insulation body according to another embodiment of the present invention. In FIG. 2C, the laminated film 202 includes a first gas barrier layer 205a and a second gas barrier layer 205b. The first gas barrier layer 205a has a first " 20 PEN film 21a, and a first aluminum vapor-deposited layer 212a which is vapor-deposited on the first PEN film 21a. The second gas barrier layer 205b has a second PEN film 211b, and a second aluminum vapor-deposited layer 212b deposited on the second PEN film 21 lb. The first aluminum vapor-deposited layer 212a and the second aluminum vapor-deposited layer 212b are adhered to each other. An aluminum foil 206 is laminated on the inside of the first PEN film 211a. 25 1244911 Figure 2D is a detailed cross-sectional view of the laminated film used in this example. In Fig. 2D, the laminated film has the first gas 205a and the second gas barrier layer dove. The first gas barrier layer 205a has a first-PEN film 211 as a first-supporting layer 211a and a second-steaming assist &. The second gas barrier layer has a second calyx as a second support layer, and a second mine name.

10 15

Strike. The first inspection layer 212a and the second | g steaming layer are bonded to each other by an adhesive. The first-shao steamed ore layer 212 called the second thickness of the second-steamed ore layer is about 5 Gnm. In the case where the thickness of the transition is thin, generally, 5 'valleys are apt to generate pores, and the gas will pass through the pores, and the air pressure inside the vacuum insulation body changes, so the insulation performance of the vacuum insulation decreases. As a result, by bonding the first-steaming layer ⑽ and the second-steaming layer ㈣ in a mutually facing manner, the pores 21 generated by the second PEN film 211b of the first-flushing 211 floor are mutually Healing shape. Therefore, a situation in which the gas enters the inside of the vacuum insulator and the internal pressure changes is prevented. As a result, excellent thermal insulation performance is maintained for a long period of time. At this time, as shown in FIG. 2C, Shaoxing 206 is arranged between the first gas barrier layer 205 and the sealing layer 2G4. In addition, the material is about to be thick with claws. Q When the bismuth heats up, the laminated film 202 shrinks to cause friction with the core material 201, or: The two first body barrier layers and the second gas barrier layer 2G5b are effectively generated. Action 'makes the vacuum insulation body protected. Therefore, the vacuum heat insulator of this embodiment has excellent durability and excellent heat insulation performance. Embodiment 2c FIG. 2E is a schematic sectional view of another embodiment of the present invention. Figure 2F is a schematic sectional view of its detailed structure. In this embodiment, the aluminum foil 206 is disposed between the first gas barrier layer 205a and the second gas barrier layer 20 讣, and is bonded with an adhesive. Furthermore, the aluminum foil 206 is disposed in A region other than a part of the sealing portion 203. The support layer 211 is a PEN film for 5 layers. As shown in Fig. 2F, the adhesive used at this time is applied in a narrower range than the aluminum foil 206. Therefore, an adhesive-free space 213 is easily generated at the end of the aluminum foil 206. When the space 213 is generated, a gas such as air may pass through the space 213 and there is a concern that it may enter between the laminated films. Therefore, in the vacuum heat insulator of this embodiment, since the aluminum foil 206 is disposed between the first gas barrier layer 10 205a and the second gas barrier layer 205b, if the space 213 is generated, the first aluminum vapor barrier is used. The PEN films 211a and 211b of the plating layer 212a and the second aluminum vapor-deposited layer 212b can prevent the intrusion of air. According to the present embodiment ', a laminated film can be easily manufactured by a process of merely adhering the foil 206 to a pen film. Therefore, the processing is very simple. In addition, a vacuum insulator having excellent heat insulating properties can be obtained. In addition, since no chemical treatment such as etching is performed, there is no concern of resin deterioration, and a vacuum insulator that can be used for a long period of time can be obtained. Embodiment 2d Fig. 2G is a schematic cross-sectional view of the structure of another embodiment of the present invention. In this embodiment, the first gas barrier layer 205a and the second gas barrier layer 205b are disposed between the aluminum foil 206 and the sealing layer 204, and the outer surface of the aluminum foil 206 is covered by the protective layer 208. The protective layer 208 is made of polyimide (trade name nylon). Therefore, even when the space 213 as described in the example 27 1244911 is generated at the end of the box 206, there will still be two layers of the first gas barrier layer 205a and the second gas barrier layer 205b. , So that the entry of gas through space 213 is prevented. Therefore, according to this embodiment, a vacuum heat-insulating body having excellent heat-insulating performance which can be used for a long period of time can be obtained. As described above, with the structure of the present invention, a vacuum heat insulator having excellent durability and excellent heat insulation performance which can be used for a long period of time can be obtained even at high temperatures. ί Typical Embodiment 3 10 A vacuum insulation body according to still another exemplary embodiment of the present invention includes a laminated bag and a heat insulating core material provided in the laminated bag; the inside of the laminated bag is evacuated to a vacuum. . The laminated bag is made of a laminated film. The aforementioned laminated film includes a gas barrier layer having a gas barrier property. The aforementioned gas barrier layer includes a ductile metal. The aforementioned metal has a thermal conductivity of 300 15 W / m · K or less at 300K. With this structure, it is possible to obtain a vacuum heat insulator having excellent heat insulation performance without being subject to long-term deterioration. I A vacuum insulation body according to still another exemplary embodiment of the present invention includes a laminated bag and a heat insulating core material provided in the laminated bag; the inside of the laminated bag is evacuated to a vacuum. The laminated bag is made of a laminated film. The aforementioned laminated film includes a gas barrier layer having a gas barrier property. The aforementioned gas barrier layer has a property of penetrating a high-frequency magnetic field. With this structure, the cooking container is induction-heated by interlinking a high-frequency magnetic field in the cooking container, and is used as a heat-insulating insulator of an induction heating device that heats water and cooking. Thermal insulation performance. 28 1244911 Particularly suitable for the aforementioned metal is a metal foil. With this structure, it can be used as a thermal insulator for thermal insulation of an induction heating machine and obtain excellent thermal insulation performance. Particularly suitable for the aforementioned metal foil is stainless steel having a thickness of 50 μm or less. This expensive steel prevents the heating or burning of the metal foil by penetrating the high-frequency magnetic field. Therefore, when a vacuum heat insulator is used as a heat insulator for an induction heating cooking device, it is possible to prevent a decrease in the induction heating efficiency of the induction heating device and obtain excellent heat insulation performance. As a result, it can be used as a vacuum insulator for thermal insulation of induction heating equipment. 10 The foregoing metals are particularly suitable as SUS430, SUS304, SUS301, or SUS316, or a combination thereof. With this structure, it is possible to obtain a vacuum heat insulating material having excellent heat resistance, excellent durability, and excellent heat insulating effect, and can be used as a heat insulating agent for heat insulation of induction heating machines. 15 The aforementioned metal foil is particularly suitably a titanium foil having a thickness of 50 μm or less. With this structure, it is possible to obtain a vacuum heat insulating material having excellent heat resistance, excellent durability, and excellent heat insulating effect, and can be used as a heat insulating agent for holding heat of an induction heating machine. It is particularly suitable that the laminated film has a protective layer, and the protective layer has one heat-resistant organic film or a plurality of heat-resistant organic films. With this structure, deterioration of the laminated bag at a high temperature can be prevented. As a result, a vacuum heat insulator capable of maintaining excellent heat insulation performance for a long period of time can be obtained even in high-temperature use. Particularly suitable for the heat-resistant organic film are polyethylene terephthalate, 29 1244911 polyethylene naphthalate, polyimide, or polyphenylene sulfide. As a result, even in high-temperature use, a vacuum heat insulator capable of maintaining excellent heat insulation performance for a long period of time can be obtained. Embodiment 3a 5 will be described below based on a specific embodiment of this embodiment. Fig. 3A is a schematic cross-sectional view showing the structure of the vacuum heat insulator of this embodiment. The vacuum heat insulator of this embodiment includes an inner bag 302, a heat insulating core material 301 provided in the inner bag 302, and a laminated film 303. The laminated film 303 is bag-shaped and forms a laminated t-bag. The heat-insulating core material 301 provided in the inner bag 302 is provided in a 10-bag-shaped laminated film 303. The laminated film 303 includes a thermal fusion layer 304, a gas barrier layer 305, and a protective layer 306. The laminated film 303 has an adhesive portion 307. The laminated bag is hermetically sealed by applying heat to the adhesive portion 307 to form a thermal fusion. The laminated bag was evacuated to a vacuum state. The core material 301 is a formed body made of fine powder such as silicon dioxide or beads, or a polyamine 15-based foamed plastic. The core material 301 of this embodiment is a synthetic silicon dioxide powder having a small particle diameter. Synthetic dioxide with fine particle size > Inverse powder has small thermal conductivity. This synthetic silicon dioxide powder has a very small thermal conductivity that is independent of pressure under a pressure of about 10 torr or less. Therefore, in the use of high temperature and high movement of air molecules, the use of vacuum insulation with synthetic silica powder, 20, 20 silicon dioxide to show excellent thermal insulation performance. The heat fusion layer 304 is made of polyethylene, high-density polyethylene, polyacrylonitrile, or polypropylene. In this embodiment, a non-stretched polypropylene homopolymer having high crystallinity is used as the heat-fusion layer 304. The aforementioned non-stretched polypropylene does not deteriorate even if it is left at a temperature of about 100 ° C for a long time. The gas barrier layer 305 has a function of maintaining a vacuum inside the vacuum insulator. The degree of vacuum (i.e., internal pressure) inside the vacuum insulator is about 20 torr or less. Generally, due to thermal stress, mechanical external forces, etc., the gas barrier effect of the gas barrier layer 305 decreases, and the gas enters the laminated bag, so the internal pressure rises. As a result, the thermal insulation performance of the vacuum thermal insulation agent is reduced. In this embodiment, as the gas barrier layer 305, a metal having ductility and a thermal conductivity of 100 W / m · K or less in 300K is used. ί Because the metal has ductility, it is possible to prevent the occurrence of pores even in the case where the metal is stretched to be thin to make a thin metal foil. In addition, since the thermal conductivity of the metal is small, it is possible to prevent the thermal conduction transmitted from the end surface of the laminated film having the metal. As a result, the thermal insulation performance of the vacuum heat insulator is improved. The function of this embodiment will be described below. The truth shown in Fig. 3A 15 When the air insulation body is used in induction heating equipment using induction heating, it exerts the power of excellent heat insulation performance. Of course, when this vacuum heat insulator is used in a cold-insulating device such as a refrigerator or a general heating and holding device, it can also exert excellent heat-insulating performance. Induction heating machines have been revealed to include cooking appliances, heat-preserving electric pots, 20-bottle insulation, hot plates, heat-preserving pots and other heat-generating machines that generate heat by induction heating. In an induction heating device, a high-frequency magnetic field of, for example, about 25 kHz is generated from a high-frequency coil. This high-frequency magnetic field generates cross-links in a cooking container of a cooker and inductively heats the cooking container. That is, an eddy current is generated in the metal constituting the cooking container by the interlinkage of the high-frequency magnetic field. Joule fever is therefore caused by the current. By using this induction heating, it is possible to cook the cooking items contained in the cooking container. As described above, in a device having a structure that uses a south-frequency magnetic field to heat a capacitor, a vacuum heat insulator with a metal depends on the type of the metal, and 5 does not exhibit excellent thermal insulation performance. The reason is that the high-frequency magnetic field generated by the device during cooking may cause cross-linking in the metal constituting the gas barrier layer of the heat insulator, and the metal itself may be heated by induction heating. As a result, the gas barrier layer is destroyed. As a result, the vacuum heat insulator is damaged. 10 This embodiment provides a vacuum insulator which can avoid such an influence caused by a high-frequency magnetic field. The induction heating phenomenon caused by the high-frequency magnetic field and cross-linking phenomenon changes in behavior depending on the type and thickness of the metal to be heated. Stainless steel, titanium, iron, chromium, carbon steel, etc., which have a relatively large resistance, will be heated rapidly by induction heating at a thickness of 15 milli class. When the thickness of these metals is micron, these metals become difficult to be heated. In particular, when the thickness of stainless steel or titanium having high resistance is about 20 // m or less, these metals become difficult to be heated. When the thickness of these metals is about 5 μm or less, the metals are hardly heated. In addition, micron 20-level metal has the property of penetrating high-frequency magnetic fields generated from high-frequency coils. Metals with low resistance, such as aluminum and copper, will not be heated by induction heating in the millimeter range. However, when the thickness of the metal is about a micron level of about 7 μm, the metal is rapidly heated. For example, in evaporation technology, sputtering technology, etching technology, etc., aluminum having a thickness of about 0.05 to about 1 μm will penetrate 32 1244911 through a high-frequency magnetic field without generating heat due to induction heating. That is, in this embodiment, the gas barrier layer 305 shown in FIG. 3A is made of a metal having ductility and having a thermal conductivity of 1000 w / m K or less in 300 kappa. The 5 system 2 is made of ductile metal, which is easy to be processed into a thin metal box. The metal can be processed to a thickness so that when it is placed in a high-frequency magnetic field, the Nuzhong Rishou will not be subjected to induction heating. . That is, it is possible to obtain a metal foil which prevents the occurrence of pores. In addition, when using a bell layer where metal is vapor-deposited on a support, it is possible to form a vapor deposition 10 β Q that can prevent the occurrence of pores. That is, a gas that can maintain excellent gas barrier properties can be obtained. STRUCTURE LAYER 305. In addition, by using a metal having a small thermal conductivity, the amount of heat transmitted to the low temperature side due to the thermal conduction from the end surface of the laminated bag is reduced, and a vacuum thermal insulator having a significantly excellent thermal insulation effect can be obtained. The thermal conductivity at an average temperature of 300K is 100 (w / m · κ) and the ductile metals used by users are iron (80W / m · κ), nickel (90W / m · κ), Platinum (71W / m · K), tin (73W / m · K), titanium (20W / m · K), stainless steel (15W / m · K), carbon steel (50W / m · K), and the like. In this embodiment, since a very thin material such as a metal foil and a vapor deposition layer is used as the gas barrier layer 305, the gas barrier layer 305 is liable to cause damage to 20. When the gas barrier layer 305 is damaged, it becomes impossible to maintain the vacuum inside the film bag. Therefore, the thermal insulation performance of the vacuum heat insulator is lowered. Therefore, a protective layer 306 is provided on the outer side of the gas barrier layer 305 in the present embodiment. In this example, the heat resistance of polyethylene terephthalate (pET), polyethylene naphthalate (PEN), polyimide (PI), or polyphenylene sulfide (pps) is used. 33 1244911 The film is used as the protective layer 306. By using these heat-resistant films, even when the vacuum heat insulator is used at a high temperature of about 100 ° C, the occurrence of thermal deterioration of the protective layer is prevented. As a result, it is possible to obtain a vacuum heat insulator which can maintain excellent heat insulation characteristics over a long period of time. In addition, when a polyamide-based resin such as polyamide-6 (trade name 5 "nylon 6") and polyamide 66 (trade name "nylon 66") is used as the protective layer 306, nylon 6, nylon 66 There is a tendency to deteriorate at high temperatures, so the above effects are slightly worse. An embodiment for verifying the effect of this embodiment will be described below. ΐ Example 3b 10 The following vacuum insulators were produced using a laminated film having a gas barrier layer 305. Conventional Example 1: Aluminum foil with a thickness of 7 // m; Conventional Example 2: Aluminum vapor-deposited layer with a thickness of 0.05 // m deposited on a PET film; SUS foil A of this experimental example: a thickness of 7 // m SUS304 metal 15 fl; SUS foil B of this experimental example: SUS304 metal. Foil with a thickness of 50 // m; Chin pig A of the conventional test example • Thickness of 7 // m of Chin%, titanium of the experimental example Foil B: Titanium foil with a thickness of 50 // m. 20 The results of this test are not shown in Table 3. [Table 3] Composition of penetration heat (W) Heat transmitted on the end face (W) Leakage total heat (W) Conventional example 1 18.3 67.5 85.8 Conventional example 2 18.3 0.5 18.8 34 1244911 —SUS foil A 18.3 ----- 4.3 22.6 SUS Hall B 18.3 30.5 48.8 Titanium foil A 18.3 5,7 24.0 Titanium foil B 18.3 40.7 59.0 The same inside. However, the heat transmitted on the end face of the vacuum insulation is very ---------- I 59.0 It can be seen from Table 3 that no matter which type of vacuum insulation, the penetration heat is the difference, that is, the thickness used 50 " m non-recording steel and titanium network as the vacuum insulation of the gas insulation layer 305, compared with the use of aluminum foil with a thickness of 7 // m as the vacuum insulation of the gas insulation layer 305, it can reduce Leaked in the king's heat. And the vacuum of stainless steel foil and titanium foil thinner than 50 # ㈤

Insulation can go a step further-reducing the total heat leaked from the vacuum insulation. In this way, the vacuum heat insulators having Sussex A, Sus Box B, Titanium Foil A, or Titanium Foil B all have excellent thermal insulation properties. Example 3c Next, the results of the heat-resistant endurance test of the vacuum insulator of this example are reported. The vacuum insulator of the sample used in the experiment is the same as the vacuum insulator used in the aforementioned experimental example 3b. The internal pressure in the laminated bag of the vacuum 15 纟 bar heat body of each sample was measured in advance; after that, each vacuum heat insulator was stored in a thermostatic bath at 100 ° C, and each of them was taken out of the thermostatic bath after a predetermined time, and measured Internal pressure in laminated bag. Based on this measurement result, the internal pressure in the laminated bag after 7 years was predicted. The experimental results are shown in Table 4. [Table 4] ___ Change in internal pressure _ 3650 days later 丨 Initial value I 3 后 后 12 日 # 1825 日后 35 20 1244911 Conventional example 1 1.2 1.2 1.2 10 15 Conventional example 2 1.2 9.6 25 — — SUS foil A 1.1 1.1 1.1 9.0 14 SUS Foil B 1.2 1.2 1.2 6.0 10 Titanium Foil A 1.2 1.2 1.2 9.0 15 Titanium Foil B 1.3 1.3 1.3 6.0 11 In general, products using vacuum insulation have a warranty period of 7 to 10 years. As shown in Table 4, the vacuum heat insulators of the samples of this example have an internal pressure of about 20 torr or less in a 7-year forecast. Therefore, adiabatic performance can be guaranteed for at least 7 years; it can be used as a thermal insulator between 7 years. In contrast, in the vacuum heat insulator having an aluminum vapor deposition layer shown in Conventional Example 2, the internal pressure inside the laminated bag was about 25 torr on the 12th day after the test was started, and the internal pressure changed greatly. That is, gas enters the laminated bag, and the internal pressure rises. Therefore, the thermal insulation performance of the vacuum insulation body is reduced in long-term use at high temperatures. That is, the vacuum heat insulator of Conventional Example 2 cannot guarantee heat resistance for a long period of time. When considering use over a period of 10 years, it is preferable to use a stainless steel foil or a titanium foil having a thickness of about 7 // m as the vacuum heat insulator of the gas barrier layer 305. Example 3d Next, a test experiment was performed on the heating efficiency of the induction heater 15 using the vacuum heat insulator of this example. This experiment uses the experimental setup shown in Figure 3B. That is, the vacuum heat insulator 310 of this embodiment is inserted between the induction heating machine 308 and the heating object 309 which is a cooking container. That is, when the heating efficiency when the vacuum insulation body 310 is not inserted is 100, the heating efficiency when the vacuum insulation body 310 is inserted is measured. 36 1244911 Use aluminum foil with thickness of 7 // m, aluminum vapor-deposited layer with thickness of 0.05 // m, thickness from 1 // m to 100 " m ferrite is stainless steel foil SUS430, thickness 7 // Austenite of m is stainless steel foil SUS304, and titanium foil of thickness 7 is used as the gas barrier layer 5 305 of the vacuum insulator used in the experiment. The measurement results are shown in Table 5.

[Table 5] Type thickness (// m) Heating efficiency without insulation — 100 Aluminum foil 7.0 0 Burning aluminum vapor deposition layer 0.05 99.5 SUS430 foil 1.0 99.0 5.0 95.0 7.0 93.0 10 90.0 15 85.0 20 80.0 50 50.0 100 0 Burning SUS304 foil 1.0 99.3 5.0 96.7 7.0 95.3 10 93.3 15 90.0 20 82.8 50 67.0 100 0 Combustion titanium foil 1.0 99.0 5.0 95.0 7.0 93.0 10 90.0 15 84.9 20 79.9 50 49.8 37 1244911 100 0 Combustion can be seen from Table 5 and the use thickness is less than 50 // m The stainless steel foil or titanium foil is used as the vacuum heat insulator of the gas barrier layer 305, and even if it is used in an induction heating machine, the heating efficiency will hardly decrease. In particular, vacuum insulation using a stainless steel foil or titanium foil with a thickness of 10 // m 5 or less can have a heating efficiency of more than 90%, and has significantly excellent thermal insulation performance for induction heating equipment. On the other hand, a vacuum heat insulator using an aluminum vapor-deposited layer having a thickness of 0.05 // m has a heating efficiency of 99.5%. Although it does not affect the heating efficiency, as shown in Table 4, it will have a long duration against heat. Degradation occurred. Therefore, an aluminum vapor-deposited layer with a thickness of 0.05 // m is used as the vacuum heat insulator of the gas barrier layer 305, which cannot be used in an induction heating machine. On the other hand, a vacuum heat insulator using an aluminum foil having a thickness of 7 // m is heated by induction and the aluminum foil burns with red heat. Therefore, its heating efficiency cannot be measured. Similarly, a vacuum insulation using a stainless steel foil with a thickness of 100 // m or a titanium 15 foil with a thickness of 100 // m will also burn. Therefore, measurement of the heating efficiency cannot be performed. As described above, with the configuration of the present exemplary embodiment, a vacuum heat insulator capable of maintaining excellent heat insulation performance for a long period of time can be obtained. In addition, a 20-vacuum thermal insulator with a metal that penetrates a high-frequency magnetic field as a gas barrier layer is used as a high-frequency magnetic field to be interlinked in a cooking container to inductively heat the cooking container to heat water and cooking. The thermal insulation body of the heating machine can exert significantly excellent thermal insulation performance. Exemplary Embodiment 4 A description will be given of a heat insulator using a vacuum insulator according to an exemplary embodiment of the present invention. The heat insulator of this exemplary embodiment includes a container for containing water or food, and a vacuum insulator provided outside the container. The vacuum insulator includes a laminated bag and a heat insulating core material provided in the laminated bag. The inside of the aforementioned laminated 5 bag was evacuated and sealed. The aforementioned laminated bag is made of a laminated film, and the aforementioned laminated film has a sealing layer, a gas barrier layer and a protective layer. Because the inside of the laminated bag is kept in a vacuum state in this structure, the aforementioned 9 vacuum heat insulators have better heat insulation performance than conventional glass wool, polyurethane heat insulators, and the like. Therefore, the heat preservation device of this embodiment has a significantly excellent heat preservation ability by the effect of a true heat insulator. In addition, since the vacuum insulation system uses a heat insulating core material, the laminated bag that maintains the vacuum need not be resistant to atmospheric pressure. That is, the heat-insulating core material has a function as a supplementary material to withstand atmospheric pressure. Therefore, the laminated film can be very thin. Therefore, the heat insulator 15 of this embodiment becomes very lightweight. In addition, since the laminated film has a protective layer, it is possible to obtain a vacuum insulator which is not affected by external forces. As a result, it is possible to obtain I, which is a lightweight heat sink that is not easily damaged. The laminated bag of the aforementioned vacuum insulator is preferably made of a material that penetrates a magnetic field. With this structure, a thermal insulation capable of inductively heating by applying a high-frequency magnetic field can be obtained. The laminated film is preferably one having an aluminum vapor-deposited layer as a gas barrier layer. With this structure, the emissivity of the surface of the vacuum heat insulator becomes small, and therefore, the radiant heat from the heat insulator becomes small. As a result, a heat preservation device having more excellent heat retention properties can be obtained. 39 1244911 The laminated film is preferably a vapor-deposited layer having a compound as a gas barrier layer. With this structure, penetration loss of the high-frequency magnetic field is prevented. As a result, an induction heating insulator having excellent heat insulation performance and excellent heating efficiency can be obtained. 5 The aforementioned laminated film is preferably a vapor-deposited layer having a glass breaking point of 10 ° rca on the support layer as a gas barrier layer. A heat insulator having excellent durability and excellent heat insulation performance can be obtained. The container is preferably made of a material containing a temperature-sensitive metal. The structure is such that the temperature of the container can be detected by a magnetic field generator. Therefore, it is possible to obtain a heat insulator capable of automatically completing heating at a predetermined temperature. An embodiment of the present invention will be described below with reference to the drawings. Embodiment 4a The implementation of the present invention will be described with reference to FIG. 4A, FIG. 4B, and FIG. 4C. In Figure 4A, a container 401 containing water and food is formed of a ferromagnetic material. The periphery of the container 401 is covered with a vacuum insulation body 402. A vacuum is provided inside the lid 403 of the heat insulator. Insulator 404. The magnetic field generator 405 has the function of generating a magnetic field for induction heating. 20 The structure of the vacuum insulators 402 and 404 used in this embodiment will be shown in FIG. 4B. Note: The laminated bag is made of a laminated film 406. At the sealing portion 407, a plurality of laminated films 406, or a laminated pressure film 406 which is turned over, are adhered to each other by adhesion of the heat fusion layers. The heat-insulating core material 409 is provided in the inner bag 408. The inner bag 408 containing the heat-insulating core material 409 is provided in the laminated 40 1244911 bag. The gas inside the laminated bag of the vacuum insulation body 402 and 404 is exhausted to Keep it in vacuum. Insulated core material 409 has no air accumulation in the core material or in the gaps. Moreover, the heat conduction of the core material itself is very small. The inner bag 408 has a core material 409 to prevent scattering of the core material 409, etc. The role of the situation. The inner bag is made of non-woven materials such as gas permeability. _ The detailed structure of the above-mentioned laminated film 406 is shown in Figure 4C. The laminated film 406 includes a sealing layer 410, a support layer 412, and a gas barrier layer 411 and protective layer 413. _ The gas barrier layer 411 is provided by vapor deposition on the surface of the support layer 412, etc. The protective layer 413 protects the entire laminated film according to external stress. The sealing layer 410 and the support The layers 412 are mutually bonded with an adhesive 414 Adhesion. The gas barrier layer 411 and the protective layer 413 are adhered to each other with an adhesive 415. The heat fusion layer 410 may be a thermoplastic resin such as polyolefin or polyester. In this embodiment, an extruded polypropylene is used as the heat. Fusion layer 410. The gas-blocking layer 411 can be a thin layer such as aluminum, or a rolled metal, or a vapor deposition layer. In this embodiment, an aluminum vapor deposition layer is used as a gas barrier layer, 411. A gas barrier layer In the case where 411 is aluminum, when its thickness is thinner than 2 / zm, the high-frequency magnetic field will penetrate. This situation has been confirmed experimentally. The thickness of the steam ore I Lu used this time is about 50 nm. And this thickness of Lu 20 can fully penetrate the high-frequency magnetic field. The surface of this aluminum vapor-deposited layer had a thermal emissivity of 0.01, and apparently had a small thermal emissivity. Since the thermal emissivity of the laminated film located on the surfaces of the vacuum insulators 402 and 404 is extremely low, the thermal radiant heat from the surfaces of the vacuum insulators 402 and 404 also becomes extremely low. As a result, a heat preservation device having excellent heat insulation performance can be obtained. 41 1244911

10 15

The support layer 412 can be made of polyester, polyimide or polyimide. In the present embodiment, polynaphthalene difluoride is used as the support layer 412. Jiuyi Neng (hereinafter referred to as PEN) is used. When the gas barrier layer 411 has eight poles, and it is difficult, the gas barrier layer 411 may be affected by the support layer 412. The etch m can be used._ Use a resin with a glass shovel shift point below 100 ° C as the support layer 412. When the heat preservation device becomes 1 or more, the structure C connected to the heat preservation device C The layer M film of the vacuum insulation body 402 and 404 also became a lot: above. At this time, the Φ " waiting layer 412 also becomes 100 or more. When the glass transition point is loot: When the following & grease is used as the support layer 412, the temperature of the support layer 412 will exceed the glass transition point and change. In the glass transition point of the resin, its physical properties change significantly. Particularly, a large expansion or contraction occurs at a glass transition temperature. When the size of the support layer 412 is greatly changed, the gas barrier layer 4m adhered to the support layer will also correspond to the expansion and contraction of the support layer and the stretched wire will be stressed and cracked. That is, the difference between the thermal expansion coefficients of the 'g support layer 412 and the gas layer and the insulating layer 4 丨 丨' causes cracks and pores in the gas barrier layer 411. The external gas enters the vacuum insulation body through the crack, and the pressure inside the vacuum insulation body increases, so the insulation performance of the vacuum insulation body is reduced. Therefore, when the contents of a liquid containing water and the like are heated and held, if a support layer 412 having a glass transition point of 100% or less is used, the stress of the vacuum insulation body due to the stress applied to the gas barrier layer 411 The durability becomes shorter. Since the glass transition point of PEN is about 120 ° c ', a vacuum insulator having very high durability can be obtained. The protective layer 413 can be made of polyolefin, polyester, polyamide, polyimide, polycarbonate, fluororesin, and the like, and combinations thereof. In the present embodiment, the protective layer 413 uses a pen. 42 1244911 Next, the effect caused by the above structure will be explained. First, a water magnetic food or the like is placed in a ferromagnetic container 401, and a lid is attached. Next, the node container 401 is placed on a magnetic field generator 405 such as an electromagnetic cooker, and a high-frequency magnetic field is applied. The applied high-frequency magnetic field penetrates the vacuum insulation body 402 and reaches the container 5401. Since the container 401 is strongly magnetic, the container 401 generates heat due to an eddy current. With the container 401 which has become hot, water and food in the container 401 are heated. After the predetermined heating is performed, the operation of the magnetic field generator 405 is stopped. After that, whether it is used in the original state or moved, the heat in the container 401 will be insulated by 10 because of the vacuum insulation body 402 and 404 surrounding the container 401, so that the heat can hardly escape. To the outside. As a result, the water and food in the container 401 are maintained in a high temperature state for a long period of time. Next, specific experimental examples are exemplified. The incubator used in the experiment was the following sample. 4A: Insulator with the structure of the above embodiment (hereinafter referred to as ordinary 15 items); 4B: Insulator using glass wool instead of vacuum insulation (hereinafter referred to as glass wool items); 4C: Vacuum using stainless steel Two-layer container to replace the vacuum heat insulator (hereinafter referred to as the vacuum two-layer container article); 204D: the use of 6 " weighing Lang as the gas barrier layer of the laminated film (hereinafter referred to as 4F: Insulators using PET resin as the support layer of the gas barrier layer of the laminated film (hereinafter referred to as PET articles). Regarding the above-mentioned various kinds of heat preservation devices', first, a container 401 was filled with 丄 43 1244911 liters of water at 20 ° C. Next, a 1 kw power was used to generate a high-frequency magnetic field. When water boils due to induction heating by a high-frequency magnetic field, the application of the high-frequency magnetic field is stopped. In this state, it was left at room temperature, and the temperature in the container 401 after 6 hours was measured. Repeated operation; the experimental results are shown in Table 6. In addition, the quality of each heat preservation device is also shown in Table 6. [Table 6] Mass (g) First 100th hot water boiling time (minutes) Temperature in container 1 (° C) Hot water boiling time (minutes) Age in container 1 (° C) Ordinary articles 500 7.0 90 7.0 90 Glass wool articles 550 7.2 75 7.2 75 Vacuum two-layer container articles 1300 Cannot be heated cannot be tested As shown in Table 6, ordinary articles have light weight, and have excellent induction heating performance, excellent thermal insulation performance, and excellent durability. ^ Example 4b Figures 4D and 4E are used to illustrate other experimental examples of this exemplary embodiment. It is to be noted that the same parts as those in Experimental Example 4a are given the same symbols and their explanations are omitted—the explanations are omitted. • Figure 4D shows a bottle-shaped thermostat. In the normal state, the thermostat has an upper limit of -15 and a water level of 42. The thermostat has a water outlet 422; the water outlet 422 is a port for filling the water in the container 401 to the outside. A cross-sectional view of the laminated film used in this embodiment is shown in FIG. 4E. The laminated film includes a thermal fusion layer 423, a gas barrier layer 424, 425, a protective layer 44 1244911 427 ', and an adhesive layer 428, 429. The gas barrier layer 424 is formed on the surface of the support layer 426 by vapor deposition or the like. The gas barrier layer 425 is based on the protective layer 427 and is adhered to the protective layer 427 by evaporation or the like. The adhesive layer 428 molds heat-fusion layer 423 and support layer 426; the adhesive layer 429 bonds the gas barrier layer 424 and the gas barrier layer 425. Here, as the gas barrier layers 424 and 425, a metal vapor-deposited layer and a vapor-deposited layer of oxides (compounds) oxidized in Lv and monoxide, etc. can be used. In this embodiment, a vapor-deposited layer using a monoxide compound is used. When a compound is used as the gas barrier layer 424, 425, the high frequency magnetic field penetrates the compound gas barrier layer, so the loss of high frequency magnetic field energy can be prevented. Therefore, ideal induction heating can be performed. In this embodiment, although the gas barrier layer has a double-layer gas barrier layer 424, 425 'through an adhesive, it is not limited to this structure, and the gas barrier layer may be provided with a plurality of gas barrier layers or more. By making the first gas barrier layer 424 and the fifteenth first gas barrier layer 425 close to each other, even if pores occur in the gas barrier layer, external pores can be prevented from entering the vacuum insulation body because the pores compensate each other. internal. As a result, it is possible to obtain a vacuum insulator and a heat insulator having a very high L property. In this embodiment, the material of the container 1 is a temperature-sensitive metal having a change from a strong magnetic field to a weak magnetic field. 20 Next, the operation of this embodiment will be described. First, water or the like is filled into the container 401 until the line 421. Thereafter, the container 401 was placed on a magnetic field generator at 405 to generate a high-frequency magnetic field. The container 401 generates heat by a high-frequency magnetic field, so that the water in the container 401 is heated. At the boiling temperature of water, the temperature-sensitive metal changes to weak magnetism. The magnetic field generator 4005 detects the magnetic change of the temperature-sensitive metal 45 1244911, and the magnetic field generator 405 will automatically stop the production of the magnetic field. As a result, the Buddha's water of 5 10 15 20 will automatically terminate. After that, the container containing the boiling hot water may be left as it is or moved. Pour the water out of the outlet π 422 so that the container tilts. In addition to the method of pouring hot water, an airpump method or an electric fruit method may be used. Specific examples will be illustrated next. In this experimental example, the following warmers were used as samples. ^ Article 4) F ;: a heat preservation device having the structure of the above embodiment (hereinafter referred to as a common criminal: glass wool is replaced by broken glass wool instead of vacuum insulation); 彳 RAN's AH • Non-recording steel Vacuum two-layer container to replace the vacuum insulation body insulation (hereinafter referred to as vacuum two-layer container items);…, version 41: use 6 // m thickness aluminum foil as the laminated 425 heat insulator (below It is called the material layer and the layer 424, and the thermal insulation device using the thickness of 50 tons of steamed mineral layer as the gas barrier layer 424, 425 of the laminated film (hereinafter referred to as 4K: using PET The resin is similar to the gas barrier layer of a layer of film. It is a heat preservation device for the base material of milk (hereinafter referred to as a pET article). Use the above sample; first 'fill the stolen water! The power of kw causes the high-frequency magnetic field to occur. Water-denier boiling stops the generation of the high-frequency magnetic field. After that, the temperature in the container 40m after 6 hours is measured. Repeated operation; the experimental results are shown in Table 7. The mass of each heat preservation device is also shown in Table 7. 46 1244911 [Table 7] Mass (g ) 1st 100th hot water boiling time (minutes) temperature in container 1 CC) Hot water boiling time (minutes) temperature in container 1 (° C) Ordinary articles 500 6.8 89 6.8 89 Glass wool articles 550 7.2 75 7.2 75 Vacuum two-layer container item 1300 Cannot be heated Cannot be tested Cannot be heated Cannot be tested Aluminium foil article 500 Cannot be heated Cannot be tested Cannot be heated Cannot be tested Can not be tested

As mentioned above, ordinary articles have light weight, can also be induction heated, and have excellent thermal insulation properties and excellent financial properties. Furthermore, in comparison with the case where the 5% vapor deposition layer and the silicon dioxide vapor deposition layer were used as the gas barrier layers 424, 425, the heat insulator with the aluminum vapor deposition layer had a slight magnetic field loss. Therefore, a heat preservation device having a silicon dioxide vapor deposition layer has better heating efficiency than a heat preservation device having an aluminum vapor deposition layer. However, since the vapor deposition layer has a small thermal emissivity, the thermal radiation heat is small. Therefore, a heat preservation device having an aluminum vapor-deposited layer has better heat insulation performance than a heat preservation device having a silicon oxide vapor-deposited layer. Therefore, either or both of the aluminum vapor-deposited layer and the dioxide vapor-deposited layer can be appropriately selected according to the method of using the heat insulator. From the above description, it can be understood that the structure of this embodiment can obtain a heat preservation device having a remarkable high heat preservation performance. Moreover, a lightweight thermal insulation device can be obtained; in addition, a thermal insulation device having excellent durability can be obtained. In addition, since the vacuum insulator penetrates a high-frequency magnetic field, a heat insulator capable of external heating by induction heating can be realized. 47 1244911 In addition, a container made of a material containing a temperature-sensitive metal can be used to realize a thermostat that can automatically control temperature or heating. Exemplary Embodiment 5 An electric water heater 5 using a vacuum insulator according to an exemplary embodiment of the present invention will be described. The electric water heater according to this exemplary embodiment includes a water storage container, a heater for heating the water in the water storage container, a water outlet line for allowing the water to flow out, and a vacuum heat insulator provided around the water storage container. The vacuum insulator includes a laminated bag and a heat insulating core 10 provided in the laminated bag, and the laminated bag is evacuated to a vacuum. The aforementioned laminated bag is made of a laminated film; the aforementioned laminated film includes the aforementioned gas barrier layer, protective layer and sealing layer. The gas barrier layer includes a resin film substrate and a vapor deposition layer deposited on the substrate. The protective layer is provided on the surface 15 side of the steamed surface of the steam-forged layer, and is made of the same material as the resin film substrate. The sealing layer is located on the inner surface of the aforementioned laminated bag. The laminated bag is sealed in such a manner that the sealing layers are adhered to each other. With the above structure, the gas barrier layer is not damaged, and the vacuum state inside the laminated bag can be maintained. Therefore, the excellent thermal insulation properties of the vacuum heat insulator are not reduced, but can be maintained for a long period of time. In addition, since the vapor-deposited layer is used as a gas barrier layer, the heat transmitted to the gas barrier layer from the high-temperature portion and the heat flowing into the low-temperature portion is suppressed to a minimum. Therefore, the overall thermal insulation performance of the vacuum heat insulator is improved. As a result, the thermal insulation power of the electric water heater can be made small. The vacuum heat insulator of this exemplary embodiment has a thermal conductivity of about 0.006 48 1244911 kcal / m · h · ° C (0.07 W / m · K) at 25 ° C. In addition, an electric water heater using a vacuum insulation body having a vapor barrier layer vapor-deposited has a small amount of heat leaked from the end surface due to conduction through the gas barrier layer itself, so that it is equipped with a metal foil as the gas barrier layer. An electric water heater with a vacuum insulation body of 5 can suppress the insulation power to a lower level. In addition, since the protective layer and the base material are formed of the same material, the thermal expansion and thermal contraction of the protective layer and the base material with temperature changes are the same. Therefore, the occurrence of uneven stress in the vapor-deposited layer due to thermal expansion and thermal contraction can be prevented, and the destruction of the vapor-deposited layer is prevented. As a result, the durability of the vacuum heat insulator is improved, and the heat durability of the electric water heater is increased. On the other hand, in the case where the protective layer and the substrate are formed of different materials from each other, since the thermal contraction rates of the substrate of the gas barrier layer and the protective layer on the vapor deposition surface side are different, unevenness is generated in the vapor deposition layer. stress. Therefore, cracks are generated in the vapor deposition layer, and the thermal insulation properties of the vacuum heat insulator can be reduced. It is preferable that the gas barrier layer has a plurality of gas barrier layers, and the respective vapor deposition surfaces of at least two vapor deposition layers are laminated in a state facing each other. In addition, in the case where the vapor deposition layer has small holes called pores, the positions of the pores are mutually closed by bonding the vapor deposition surfaces to each other to prevent the outside 20 gases from entering the inside of the vacuum heat insulator. As a result, gas barrier properties are greatly improved. With this structure, the vacuum inside the laminated bag is maintained for a long period of time, and the durability of the thermal insulation performance of the vacuum heat insulator is significantly improved. As a result, the heat durability of the electric water heater is further improved. It is preferable that the laminated film further has a metal foil. The metal foil has the function of 49 1244911 as a gas barrier layer, that is, the aforementioned laminated film has a vapor deposition layer and a gas barrier layer of the metal foil. With this structure, the heat durability of the vacuum heat insulator is improved; as a result, the heat durability of the electric water heater is further improved. It is preferable that the laminated film further has a metal foil, and the metal foil located on an end portion of the facing surface on the water storage container side of the vacuum heat insulator 5 is cut into a notch. The metal foil is provided at a position other than the end of the laminated bag. Since the gas barrier layer has a vapor deposition layer, it is possible to suppress the heat that is conducted from the high temperature part to the gas barrier layer and flow to the low temperature side. In addition, since the metal foil is provided at a position other than the end of the laminated bag, The metal foil conducts 10 and heat transfer from the high temperature side to the low temperature side is prevented. As a result, the heat-resistant temperature of the vacuum insulator further rises, and the thermal insulation power of the electric water heater is reduced. • It is preferable that the aforementioned laminated film further has a metal foil, and the sealing portion where the sealing layers of the laminated film are thermally fused to each other is bent to the opposite side of the container. 15 By bending the sealing portion containing the metal foil to the outside, leakage of heat conducted from the sealing portion to the metal foil itself can be prevented. As a result, the electric water heater ® has a reduced insulation power. In addition, the thermal durability of electric water heaters is further improved. The resin film substrate includes polyethylene naphthalate. Because polyethylene naphthalate has a high heat-resistant temperature, even if the vacuum heat insulator is placed in a high-temperature fog, the destruction of the vapor deposition layer is still prevented. As a result, the durability of the heat of the vacuum insulation is increased, and the financial properties of the heat of the electric water heater are improved. Hereinafter, embodiments of the present invention will be described with reference to the drawings. 50 1244911 Embodiment 5a The electric water heater of this embodiment will be described below with reference to Figs. 5A to 5F. In FIG. 5A, the electric water heater body 501 (hereinafter referred to as the body) is provided with a water storage container 502 (hereinafter referred to as a container), a central plug 503, an upper cover 504, a water leakage prevention valve 506, a steam passage 505, a motor 507, a drum 508, and a suction port. 509, — discharge port 510, water outlet pipe 511, water outlet 512, heater 513, temperature detector, detector 514, start switch 515, button 516, lever 517, compression spring 518, control device 519, and vacuum insulation体 520。 520. Valley 502 is installed inside the body and has a water storage function. The container 502 has a cylindrical shape with an inner diameter of 184 mm and a depth of 200 mm. The center stopper 503 is provided so as to close the opening of the container 502. The upper cover 504 covers the upper portion of the main body 501 in a switchable manner. The steam passage 505 is provided on the upper cover, and one end of the steam passage 505 penetrates the central plug 503 to communicate with the inside of the container 502, and the other 15 end communicates with the atmosphere. The water leakage prevention valve 506 is arranged in the steam passage 505, and has a function of blocking the steam passage 505 in the case of reversal and the like. Basic < Sixth, the steam passage 505 forms a complex bend. Therefore, when the water in the container 502 is boiled, when the pressure inside the container 502 becomes higher than the atmosphere, the steam is discharged to the outside of the body 501 through the steam passage 505; the external air and the water surface in the container 502 and the upper cover 504 The air does not mix easily. The motor 507 is provided at the bottom between the body 501 and the container 502. The drum 508 is driven by a motor 507. The suction port 509 of the tube 508 communicates with the bottom of the container 502. The outlet 510 of the tube 508 is connected to the outlet pipe 511. Hot water flows from the water outlet 512 to the outside of the electric water heater. Therefore, in the water outlet path, the hot water flows out of the water outlet 512 through the container 502, the suction inlets 509, 51 1244911 bowl 508, the outlet port 51 of the bowl 508, and the outlet pipe 511. The heater 513 for heating has a donut shape without a central portion, and is installed in the lower portion of the container 502. The start switch 515 of the drive motor 507 is provided with a variable resistance element, and is actuated through the lever 517 by the on / off switch 5 which is pressed by the push button 516. The spring 518 is installed in a state where the lever 517 is always pushed upward. The control device 519 reads a signal from the temperature detector 514 to control the heater 513 and the like. A vacuum heat insulator 520 is provided around the side of the container 502. The vacuum heat insulator 520 prevents the heat of the container 502 from escaping from the side of the body 501. 10 Here, the vacuum heat insulator 520 used is demonstrated. Fig. 5B is a sectional view of the vacuum heat insulator 520. The vacuum heat insulator 520 includes a laminated bag, an inner bag 523, and a heat insulating core material 522. The core material 522 is contained in an inner bag 523; the inner bag 523 is arranged in a laminated bag. The inner bag 523 is formed by bonding laminated films 524, 531. In the laminated bag, the vacuum heat insulator 15 520 exhausted to a vacuum state has a flat plate and a rectangular shape as shown in FIG. 5C. The portion in which the core material 522 is incorporated is a portion 538 having thermal insulation properties. In the heat-pressed sealing portion 537, the respective sealing layers 525, 536 are fused and sealed. As shown in Fig. 5D, the vacuum heat insulator 520 surrounds the water storage container 502 attached thereto. The inside of the vacuum heat insulator 520 directly contacts the container. Therefore, the material used inside the 20 vacuum insulator 5 2 0 must have higher thermal durability and excellent gas barrier properties than the opposite side. The laminated film 524 includes a sealing layer 525, a substrate 526, a gas barrier layer 527, and a protective layer 528 and a gas barrier layer 529. The laminated film 531 includes a protective layer 532, a gas barrier layer 535, and a sealing layer 536. The core material 522 is a material having a small thermal conductivity of 52 1244911. Holes and gaps formed in the core material 522 communicate to the outside of the core material. The core material 522 may be an organic or inorganic material. When the vacuum insulator is used at high temperatures such as electric water heaters, materials that do not generate gas even at high temperatures are used. As the core material, bead bodies, sirasso foams (today only A small one >, shirasu balloon), synthetic three and the like can be used. In this embodiment, the synthetic Sanli powder is used as the β material 522. Synthetic silica powder has very fine particles, and the thermal conductivity of the particles is very small. In addition, the core material using the synthetic ^^^ powder exhibits a very low thermal conductivity of 10, regardless of the pressure, at a pressure of 20 t0rr or less. Therefore, the use of a synthetic vacuum insulator at high temperatures exhibits significantly superior thermal insulation properties. The sealing layers 525 and 536 have a function of maintaining a vacuum inside the laminated films 524 and 531 to be bonded. The sealing layer is made of a material that can be easily heat-pressed. ‘Since the temperature of the hot water is about 100 ° C, the sealing layer is preferably made of a material that does not deteriorate at 100 ° C. In this embodiment, the sealing layers 525, 536 are made of unstretched polypropylene. This polypropylene is a polymer having high heat resistance and has a property of improving crystallinity. The gas barrier layer 527 of the first build-up film 524 includes an aluminum foil 529 and an aluminum vapor-deposited layer 530. The aluminum drop 529 has a width to the extent that it can cover the core material 522: 20, and the second gas barrier layer 535 of the second laminated film 531 is made of Langer II. These gas barrier layers ⑶, 535 have the function of blocking other gases as they penetrate the county membrane. When the laminated film 524, 531 does not have a large gas cutoff, the internal pressure of the vacuum heat insulator 520 rises. When the internal pressure of the hollow insulation body 52 exceeds 20 torr, the thermal conductivity of the vacuum insulation body also continues to increase; moreover, when the internal pressure of 53 1244911 rises, its thermal conductivity is also significantly higher than that of the direct air insulation body with thermal insulation properties at the beginning. Get bigger. Therefore, the laminated film must have a property of blocking gas for a long period of time at a temperature of about 10 generations. In addition, the thicker the thickness of the shielding material that blocks the penetration of gas, the higher the long-term reliability. However, in the case of using metal 5 as a gas barrier layer of the vacuum insulation body, as the thickness of the metal becomes thinner, the amount of money itself increases, and the crane performance increases. In this detailed example, both a 5 to 6 m box and an aluminum vapor ore layer 53 with a thickness of 30 to nm are used as gas barriers. ^ = Surface 'uses a 5-6 / zm Shao flute or a 30-30nm nm steamed ore layer as the gas 10 barrier layer 535. Here, although the thickness of the vapor-deposited layer 53 is preferably in the range of 30 to 100 nm, it is not limited to this thickness, and any thickness may be used. In the laminated film 524, the protective layer 528 has a role of protecting the sealing layer 525 and the gas barrier layer 529. In the multilayer film 531, the protective layer 532 functions to protect the gas barrier layer 535 and the sealing layer 536. Although the optimal thermal shrinkage of the base material 526 and the protective 15 layer 528 is the same, it is not limited to this, and any material can be used. When the thermal shrinkage of the protective layer disposed on both sides of the vapor-deposited layer and the substrate is different, uneven stress acts on the vapor-deposited layer, causing the vapor-deposited layer to be damaged. By using the same material to form the base material and the protective layer, it is possible to prevent the damage of such a vapor-deposited layer, and to improve the heat resistance and long-term reliability of the vacuum insulation 20. In this embodiment, polyethylene naphthalate (hereinafter referred to as PEN) is used as the substrate 526 and the protective layer 528. In the highest temperature loot in electric water heaters, the thermal shrinkage of PEN is less than 0.4%, and the thermal shrinkage of PEN is also very small compared to PET. The vapor-deposited layer will not be damaged in this degree of heat shrinkage. In the 'laminated film 531, the polyester layer 533 is disposed at a position directly adjacent to the gas barrier layer. The polyester layer 533 is PET. Although PET is slightly worse in heat resistance than PEN, the 53i side of the laminated film does not directly contact the water storage container 502, and the maximum temperature is about 40 ° C; therefore, PET is used as a protective layer. The film 531 satisfies heat resistance sufficiently. A nylon layer 534 is disposed on the outermost layer of the protective layer 532. In the use of electric heating water heaters, when the electric water heater is installed and when it is taken out, the electric water heater frequently contacts with other components 4 and is highly likely to be damaged; however, because nylon has high sliding properties, it is less likely to be damaged. In addition, by arranging nylon which is easy to slide on the outermost layer, the installation of the vacuum heat insulator can be smoothly performed, and the assembling performance is improved. In addition, when the vacuum heat insulator is wrapped around the container 502, the heat-pressure sealing portion is bent. At this time, as shown in Fig. 5D, the heat-sealed portion is formed on the outside of the cylindrical shape 'and the vacuum heat insulator is wound around the container 502. Thereby, since the end surface portion of the container 502 15 has only a vapor deposition layer, it is possible to suppress the heat that is conducted to flow in the surface of the container itself. Therefore, the overall thermal insulation performance of the vacuum insulation body is improved upward. The effect of this embodiment will be described below. Water is charged into the container 502, and thereafter, electricity is applied. The temperature of the water in the container 502 is measured by the temperature detector 514, and the signal is sent to the control device 20 519. The control device starts the energization of the heater 513 by this signal. When the water in the valley 502 boils, the power to the heater 513 is terminated. After that, the control device 519 receives the signal from the temperature detector 514 and controls the heater 513 so that the temperature of the container 502 becomes approximately a fixed temperature. To pour hot water, press the button. The motor 507 is actuated, and the water in the container 502 is discharged through the water outlet pipe 511 through the water outlet pipe 511 through the water outlet 512 to the outside of the electric water heater. Example 5b illustrates experimental examples of the thermal insulation properties and thermal durability of various vacuum heat insulators. 5 Make the following samples of vacuum insulation. 5A: The gas barrier layer has a vacuum insulation body (referred to as a double-sided foil) provided with aluminum foil on both sides; 5B: The gas barrier layer has vapor-deposited aluminum provided on both sides, and the vapor-deposited substrate is PET to protect PEN vacuum insulation (called double-sided vapor deposition 10 PET); 5C: The gas barrier layer has vapor-deposited aluminum disposed on both sides, the substrate is PEN, and the protective layer is PEN vacuum insulation ( (Referred to as double-sided vapor deposition PEN); using the above-mentioned various vacuum heat insulators, as shown in FIG. 5D, the vacuum heat insulator is rolled into a cylindrical shape to surround the container 502. On the outside of the cylindrical vacuum heat insulator 15, a sealed portion is formed, and the vacuum heat insulator is wound around the container 502. In this manner, electric water heaters having various vacuum heat insulators were produced. Water was filled into the containers of various electric water heaters to measure the respective insulation power. Furthermore, the temperature of the heat preservation water was 96.5 ° C, and the temperature of the atmosphere was 20 ° C. The measurement is performed after reaching a very balanced state. The experimental results are shown in Table 8. 20 [Table 8] Thermal insulation power (Wh / h) Thermal insulation power difference based on double-sided foil Double-sided foil 31.8 0 Double-sided vapor-deposited PET 28.7 -3.1 Double-sided vapor-deposited PEN 28.7 -3.1 56 1244911 Using vapor-deposited aluminum The vacuum insulation used as the gas insulation layer of the vacuum insulation has a lower thermal insulation power than the vacuum insulation using aluminum foil. That is, by using vapor-deposited aluminum as a gas barrier layer, it is possible to suppress the heat that is conducted in the gas barrier layer, and to improve the thermal insulation performance of the vacuum insulator 5. Therefore, by using such a vacuum heat insulator, an electric water heater with a small amount of thermal insulation power can be realized. Example 5c A 100 ° C thermostatic bath was prepared. The following vacuum insulators were produced. 5A: The same vacuum heat insulator with a double-sided foil as in the aforementioned Experimental Example 5a. 10 5 B: A vacuum insulator having double-sided vapor-deposited PE T as in Experimental Example 5a. 5C: A vacuum insulator having double-sided vapor-deposited PEN as in the aforementioned Experimental Example 5a. The internal pressure of the vacuum heat insulators of these samples was measured in advance; after that, all the vacuum heat insulators were placed in a constant temperature bath at 100 ° C for a heat resistance test. Then, after 3 days and 12 days, the vacuum heat insulator using double-sided vapor-deposited PET was taken out of the thermostatic bath, and the internal pressure was measured. After 3 days, 12 days, 1825 days, and 3650 days, the vacuum heat insulator using double-sided foil was taken out of the thermostat and the internal pressure was measured. After 3 days, 12 days, and 336 days, 20, a vacuum heat insulator using double-sided vapor-deposited PEN was taken out of the thermostatic bath, and the internal pressure was measured. Here, the temperature of 100 ° C. is the highest temperature to which the vacuum heat insulator provided in the electric water heater is subjected, that is, when the cylindrical vacuum heat insulator is rolled around the container 502, the portion that contacts the container 502 Of temperature. The heat resistance test results of these vacuum insulators are shown in Table 9. 57 1244911 [Table 9] Structural internal pressure (torr), only 3 days before and after 12 days ... 224 days, 336 days ... 1825, 3650 days, double-sided foil 1.2 1.2 1.2 * · · · · 20 below 20 double-sided steaming 1.2 9.6 20 ^ XJi double-sided vapor deposition 1.2 1.5 \ 15 above 20 In Table 9, at a temperature of about 100 ° C, it includes a gas barrier layer with vapor-deposited aluminum, a substrate with PEN, and a protective layer with PEN The vacuum insulation body ^ 5 exerts the best heat resistance and reliability for a long period of time. In other words, the vacuum heat insulator made of the same material as the base material and the protective layer exhibits outstanding long-term reliability. As a result, it is possible to realize an electric water heater with a small amount of thermal insulation power that does not deteriorate over a long period of time. However, the vacuum heat insulator including the steam-plated substrate with PET and the protective layer with PEN will have a slight deterioration in heat resistance. Example 5d Prepare a thermostatic bath at 100 ° C. The following vacuum insulators were produced. φ 5A: The same as the above-mentioned Experimental Example 5a, a vacuum heat insulator with a double-sided foil. 5C. A vacuum 15 heat insulator having double-sided vapor-deposited PEN as in Experimental Example 5a. — 5D: —The gas barrier layer of the laminated film on the side uses aluminum foil, and the other

As shown in Figure 5E, the gas barrier layer of the laminated film on the side is an aluminum vapor-deposited layer using PEN • as the base material, and further, an aluminum foil 539 is provided in a portion 537 in contact with the core material, and a vacuum insulation body (Called single-sided foil). 20 The vacuum insulation body with double-sided foil and 58 1244911 with double-side vapor-deposited PEN are respectively rolled around the container 502 as shown in FIG. 5D with a cylindrical shape and a heat-pressure sealed portion on the outside. . This state is defined as that the respective double-sided foils are folded outward, and the double-sided evaporation is folded outward. In addition, one of the vacuum heat insulators having a single-sided foil in the sample 5D was made of the gas barrier layer 5 and only the side of the aluminum foil became a cylindrical inner side. As shown in FIG. 5D, The container 502 is rolled in a state where the pressure-sealed portion is located on the outside of the cylindrical shape. This state is defined as the single-sided foil folded outward. The other vacuum heat insulator is made of a gas barrier layer, and only the surface of the foil is made into the inside of the cylinder. As shown in FIG. 5F, the heat-sealed part is located inside the cylinder and rolled up.容 10 器 502. This state is defined as the single-sided foil folded inward. An electric water heater having such a vacuum insulator is prepared. Water was charged into these electric water heaters, and the insulation power of each electric water heater was measured. Furthermore, the temperature of the warm water was 96.5 ° C, and the ambient temperature was 20 ° C. The measurement is performed after reaching a sufficient equilibrium state. The above experimental results are shown in Table 10. 15 [Table 10] Structure heat preservation power (Wh / h) The heat preservation power difference based on double-sided foil is double-sided foil folded outward 31.8 0 single-sided foil folded inward 31.0 -0.8 single-sided foil folded outward 30.0 -1.8 double The surface evaporation is folded outward 28.7 -3.1 From Table 10, the following matters are known. In a vacuum insulation body with a single-sided foil folded outward, a gas barrier layer with an aluminum vapor deposition layer can suppress the heat that is conducted through the aluminum itself, and can increase the overall thermal insulation performance of the vacuum insulation body 59 1244911 liters. Therefore, the use of such a vacuum insulation body can realize an electric water heater with a small amount of thermal insulation power. Example 5e A 100 ° C thermostat was prepared. And the following vacuum insulator was produced. 5 5A: The same vacuum heat insulator with a double-sided foil as in the aforementioned Experimental Example 5c. 5C: A vacuum insulator having double-sided vapor-deposited PEN as in the aforementioned Experimental Example 5c. 5D: A vacuum insulator having a single-sided foil, which is the same as the aforementioned Experimental Example 5c. • Measure the respective internal pressures of these vacuum insulators in advance, and then put all 10 vacuum insulators into a 100 ° C thermostatic bath. In this way, a heat resistance test is performed. Then, after 1825 days and 3650 days, the vacuum heat insulators having the double-sided foil and the vacuum heat insulators having the single-sided foil were removed from the thermostatic bath and measured within the respective ones. Pressure. After 224 days and 336 days, the vacuum heat insulator with double-sided vapor-deposited PEN was taken out from the thermostatic bath 15 and its internal pressure was measured. The heat resistance test results of these vacuum heat insulators are shown in Table 11. • [Table 11] Structural internal pressure (torr) before heating ... After 224, after 336 days ... After 1825, after 3650 days, double-sided foil 1.2 20 or less Double-sided vapor deposition PEN 1.2 16 20 or more Single-sided foil 1.2 20 or less Above 20, according to Tables 10 and 11, at a temperature of 100 ° C, a single-sided foil 20 vacuum insulation is folded outward. In addition to a vacuum insulation with an aluminum vapor deposition layer, the vacuum insulation 60 1244911 can be improved overall. In addition, the heat resistance can be significantly improved. Therefore, the laminated film located on the container side on the high temperature side includes a gas barrier layer having an aluminum vapor-deposited layer which is formed comprehensively, and an aluminum foil provided at a position other than the sealing portion at the end portion of the laminated film. . An electric water heater having such a vacuum 5 heat insulator can maintain excellent thermal insulation performance for a long period of time; as a result, an electric water heater with low heat preservation power can be realized. In the foregoing typical embodiments 1, 2, 3, 4, and 5, the meanings of the support layer and the substrate layer are the same. In addition, the sealing layer includes a thermal fusion layer. T of plastic film and resin film have the same meaning. The meaning of a laminated film is the same as that of a laminated film. 10 As described above, according to the structure of this embodiment, it is possible to obtain an electric water heater having the characteristics that the thermal insulation performance does not deteriorate over a long period of time, the heat resistance permanence improves upward, and the heat preservation power is very small. Brief description of the L diagram 3 FIG. 1A is a schematic sectional view showing the structure 15 of the vacuum heat insulator of the first embodiment of the present invention. Fig. 1B is a schematic sectional view showing the structure B of a vacuum heat insulator according to another embodiment of the present invention. Fig. 2A is a schematic sectional view showing the structure of a vacuum insulator according to a second embodiment of the present invention. 20 FIG. 2B is a plan view illustrating a laminated film in the shape of an aluminum foil used in the vacuum insulator of FIG. 2A. Fig. 2C is a schematic cross-sectional view showing a structure of a vacuum insulator according to another embodiment of the present invention. FIG. 2D is a cross-sectional view illustrating the structure of an aluminum vapor-deposited layer. 61 1244911 Fig. 2E is a schematic cross-sectional view showing the structure of a vacuum heat insulator according to another embodiment. Fig. 2F is a schematic sectional view showing the detailed structure of the aluminum foil of the vacuum insulator shown in Fig. 2E. 5 Fig. 2G is a schematic cross-sectional view showing the structure of a vacuum insulator according to another embodiment of the present invention. Fig. 3A is a schematic sectional view showing a structure of a vacuum heat insulator according to a third embodiment of the present invention. • Figure 3B is a schematic cross-sectional view of the structure of an induction heater 10 using the vacuum insulator shown in Figure 3A. Fig. 4A is a longitudinal sectional view of a heat preservation device according to a fourth embodiment of the present invention. -Figure 4B is a sectional view of the vacuum heat insulator of the thermal insulator shown in Figure 4A. Fig. 4C is a cross-sectional view of the laminated film of the warmer shown in Fig. 4A. 15 FIG. 4D is a longitudinal sectional view of a heat preservation device in another embodiment of the present invention. Fig. 4E is a sectional view of the laminated film of the heat insulator shown in Fig. 4D. Figure 5A is a longitudinal sectional view of an electric water heater in a fifth embodiment of the present invention. Fig. 5B is a sectional view of a vacuum heat insulator used in the electric water heater according to the embodiment of the present invention. Fig. 5C is a plan view of a vacuum insulator used in the electric water heater according to the embodiment of the present invention. Figure 5D is a perspective view of a vacuum insulator used in an electric water heater according to an embodiment of the present invention. Figure 5E is a plan view of a vacuum 62 1244911 insulator used in the electric water heater of the embodiment of the present invention. Fig. 5F is a perspective view of a vacuum insulator used in the electric water heater according to the embodiment of the present invention. Fig. 6 is a schematic sectional view showing the structure of a conventional vacuum heat insulator.

[Description of Symbols of Main Components] 101 ··· Protection layer 102… Steam layer 103 ··· Support layer, base material layer 104 ·· Hot-melt layer 105… Insulation core material 108 ·· Laminated bag 109 ... Pressure bag 201 ... Core material 202 ... Laminated film 203 ... Sealing section 204 ... Sealing layer, heat, J: Containment layer 205 ... Gas barrier layer 205a ... First gas barrier layer 20 allows ... Second Gas barrier layer 206 ·· -IS νό 207 ... Protective layer 209 ·· Adhesive 211 ··· Supporting layer 21a ... First support layer, pEn film 211b ... Second support layer, pEn film 212a ... Aluminum vapor deposition layer 212b ... Slip money layer 303 ... Laminate film 304 ... Sealing layer 305 ... Gas barrier layer 306 ... Protective layer 308 ... Induction heating machine 310 ... Vacuum insulation 401 ... Container 402, 404 ... · Vacuum insulation 406 ... Laminated film 409 ·· Core material 410, 423 · " Protective layers 411, 424,425 ... · Gas barriers 413,427 ... Protective layer 502 ... · Water storage container 513 ... Heating 520 ... Vacuum heat insulator 63 1244911 522 ... Core material 525 ... Sealing layer, heat fusion layer 526 ... Substrate 527 ... Gas barrier layer 529 ... Aluminum

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Claims (1)

1244911 10. Scope of patent application: • A vacuum insulation body, which is provided with a laminated bag and a heat insulating core material provided in the aforementioned laminated bag; the inside of the aforementioned laminated bag is exhausted to a vacuum state; the aforementioned laminated bag It is formed of a laminated film; & Said layer [The film has a gas barrier layer, a protective layer to protect the aforementioned gas barrier layer ', and a sealing layer; the Yueda protective layer has a plastic film with a glass transition temperature of more than 60; and just described The gas barrier layer includes a metal having a thermal conductivity of 100 w / m · κ or less at 300K. W2. If the true heat insulator of item 丨 is applied, the aforementioned metal of the towel has a ductility to such an extent that no pores are generated in the rolled state. 3. If the vacuum of the patent application item fl is extremely high, the cap metal has the property of penetrating the high-frequency magnetic field. 4. The vacuum heat insulator of item 1 in the scope of patent application, the aforementioned metal of the towel has a metal complex. 05. The vacuum heat insulator of item 1 in the scope of patent application, wherein the aforementioned metal has a stainless steel foil with a thickness of less than%. 6. The vacuum heat insulator according to item 1 of the application, wherein the aforementioned metal has at least one stainless steel selected from the group consisting of SUS430, SUS3G4, SUS3G, and SUS316. 7. The vacuum heat insulator according to item 1 of the application, wherein the aforementioned metal has a titanium foil having a thickness of not more than%. 8. The vacuum heat insulator according to item 1 of the patent application scope, wherein the aforementioned protective layer has a material selected from 65 1244911 polyethylene terephthalate and polynaphthalene? At least one of the group consisting of ethyl acetate, polyimide, and polyphenylene sulfide. 9. If the vacuum insulation body in the scope of patent application No. 丨, it is used as a heat insulation body. 10. If the vacuum insulation body No. W in the patent application scope is used as the heat insulation body of the electric water heater. 11. A vacuum insulation body comprising a laminated bag and a heat insulating core material provided in the laminated bag; the inside of the laminated bag is evacuated to a vacuum state; the laminated bag is made of a laminated film Forming; the laminated film has a gas barrier layer, a protective layer to protect the gas barrier layer, and a sealing layer; the protective layer has a plastic film with a glass transition temperature above magic art; and the rib gas barrier layer has a metal and an oxide At least one of the materials; the aforementioned one has the property of being able to penetrate a high-frequency magnetic field. 12. If the vacuum insulation body of the first mountain member of the patent application scope, one of the foregoing materials has a thick steel reed having a thickness of 50 // m or less. 13. The vacuum insulator according to item 丨 丨 of the patent application scope, wherein one of the foregoing materials has at least one stainless steel selected from the group consisting of SUS430, SUS304, SUS301, and SUS316. 14. The vacuum heat insulator according to item 丨 丨 of the patent application scope, wherein one of the foregoing materials has a titanium foil having a thickness of 50 // m or less. I5. The vacuum insulator of the first member of the scope of the patent application, wherein one of the foregoing materials is selected from the group consisting of polyethylene terephthalate, polyethylene naphthalate, polyimide, and polybenzyl 66 1244911 sulfur. At least one of the ethnic groups. 16. If the vacuum shaft of the patent shaft is applied, it is used as the heat insulator of the heat insulator. I. JJL π. For the true Wei heating body of item n of the patent system, Qian Yin is used as the heat insulator for riding water heater. 18 · -A type of heat insulator comprising a container for holding an object to be insulated, and a vacuum heat insulator provided outside the container; wherein the vacuum heat insulator has a laminated bag and is provided on the laminate Insulation core material in the bag; The inside of the laminated bag is exhausted to a vacuum state; The laminated bag is formed of a laminated film; The laminated film has a gas barrier layer and a protective layer for protecting the gas barrier layer, And sealing layer. 19. The heat preservation device according to item 18 of the scope of patent application, wherein the aforementioned vacuum heat insulator is provided around the uranium valley device or outside the lid or bottom. 20. The heat preservation device according to item 18 of the scope of patent application, wherein the vacuum insulation body has a property of penetrating a magnetic field at a south frequency. 21 • The heat preservation device according to item 1 § of the patent application scope, wherein the aforementioned gas barrier layer has an aluminum vapor bonding layer. 22. The heat preservation device according to claim 18, wherein said gas barrier layer has a vapor-deposited layer of an oxide. 23. The heat insulator of claim 18, wherein the aforementioned gas barrier layer comprises a plastic having a glass transition point of 100 ° C or higher, and a vapor-deposited layer deposited on the surface of the aforementioned plastic. 67 1244911 24. The heat preservation device according to claim 8 of the patent scope, wherein the aforementioned container is formed of a material containing a temperature-sensitive metal. 25. The heat insulator of claim 18, wherein the gas barrier layer has at least one stainless steel selected from the group consisting of SUS430, SUS304, SUS3m, and SUS316. • The thermal insulation device for female patent No. 18, wherein the aforementioned gas barrier layer has a titanium foil with a thickness of 50 // m or less. 27. The heat preservation device according to claim 8 in which the aforementioned protection layer has a material selected from the group consisting of polyethylene terephthalate, ethylene naphthalate, polyimide, and polyphenylene oxide. At least one of the groups that it forms. 28 ·-An electric water heater, comprising a container for filling a liquid, a heating is for heating the liquid, a water outlet path for water to flow out, and a vacuum insulation body provided around the container; wherein, the vacuum The heat insulator has a laminated bag and a heat insulating core material provided in the laminated bag; the inside of the laminated bag is evacuated to a vacuum state; the laminated bag is formed of a laminated film; The film includes a base layer, a vapor-deposited layer deposited on the surface of the base layer, a protective layer provided on the surface, and a sealing layer provided on the back surface. 29. The electric water heater according to claim 28, wherein the aforementioned substrate layer and the aforementioned protective layer are formed of the same plastic material. 30. The electric water heater according to item 28 of the application, wherein the base material layer has a first base material layer and a second base material layer; the vapor deposition layer has a first vapor deposition layer and a second vapor deposition layer; and 68 1244911 ke The first-deposited layer and the second-deposited layer can be spotted in a state facing each other. ... 31. The electric water heater according to item 28 of the application, wherein the aforementioned laminated film further has a metal foil. 32. The electric water heater according to item 31 of the patent application scope, wherein the laminated bag has a sealing portion for heat-pressure bonding the aforementioned sealing layers to each other, and the other metal foil is provided in addition to the container side. Other than the seal at the end. 33. The electric water heater according to claim 28, wherein only the laminated film formed on one side of the laminated bag further has a metal foil; and the vacuum heat insulator is provided so that the metal foil is provided. One side of the aforementioned laminated bag is in a state of being located on a high temperature side. 34. The electric water heater according to claim 28, wherein the base material layer has polyethylene naphthalate. 35. The electric water heater according to item 28 of the patent application, wherein the laminated bag has a sealing portion for thermocompression bonding the sealing layers to each other, and the sealing portion is bent on the opposite side of the container. Settings. 69