TWI767409B - Manufacturing method of heat insulating member, heat insulating member, cooling/heating machine using the same, and manufacturing method of the cooling/heating machine - Google Patents

Abstract

The manufacturing method of the heat insulating material of this disclosure has the following steps. Forming step, is to form the thermal insulation member comprising outer covering member (3), core material (2) and opening portion (6a) or (6b), and this outer covering member (3) is by making including gas barrier layer and thermal fusion bonding The 2 laminated films (5a) and (5b) of the layers are overlapped in a face-to-face manner to make the thermal fusion layer and the surrounding is thermally welded to carry out initial sealing, and the core material (2) is accommodated in the outer covering member (3 ), the opening (6a) or (6b) is formed between one of the initially sealed portions (7d) of the laminated films (5a) and (5b) and the core material (2); the drying step, The interior of the outer covering member (3) and the core material (2) are dried; and the final sealing step is to degas the interior of the outer covering member (3) through the opening (6a) or (6b), and the opening is (6a) or (6b), heat welding is performed between the parts in contact with the outer covering member (3) and the core material (2), and the outer covering member (3) is sealed and finally sealed.

Description

Manufacturing method of heat insulating member, heat insulating member, cooling/heating machine using the same, and manufacturing method of the cooling/heating machine

The present disclosure relates to a method for manufacturing a heat insulating member, a heat insulating member, a cooling/heating machine using the insulating member, and a method for manufacturing the cooling/heating machine.

In the conventional refrigerators, freezers, water heaters and other cooling and heating equipment, in order to reduce power consumption, the use of thermal insulation members.

As the heat insulating member, the core material is covered by the outer covering member having gas barrier properties, and the heat insulating member in which the inside of the outer covering member is depressurized and evacuated has high heat insulating performance.

In patent document 1, the manufacturing method of the heat insulating member which has the following steps (1)-(3) is disclosed. (1) Insert the dried core material into an outer covering member which is formed into a bag shape by sealing the three sides of the laminated film by heat fusion. (2) In the depressurization chamber, depressurize the inside of the outer covering member to below 10Pa. (3) The opening is hermetically sealed by heat fusion. [Preceding Patent Documents] [Patent Literature]

Patent Document 1: Japanese Patent No. 3580315 (paragraph [0058])

[The problem to be solved by the invention]

In the above-mentioned manufacturing process of the heat insulating member, in the final stage of the hermetic sealing step, there may be a case where a deviation occurs between the two laminated films in the opening of the outer covering member. In the state where the two laminated films have been shifted, when thermal welding is performed by a sealing machine, the shifted part is thermally welded while being bent and overlapped. The portion to be thermally welded in a state where the laminated film is bent and overlapped becomes a pleat and has a shape protruding from the surface of the laminated film.

This pleat portion is thermally fused in a state where the laminated film is folded, so that heat is not sufficiently conducted and the strength of the thermal fusion is insufficient. In addition, when the laminated film is thermally welded while being offset from the sealing machine, the area for thermal welding may be insufficient, and in this case, the strength of thermal welding is also insufficient.

As a result, at the pleated portion, the laminated film is peeled off, and there is a possibility that air enters the inside of the outer covering member. When air enters the inside of the outer covering member, the degree of vacuum decreases, and the thermal insulation performance decreases.

The present disclosure is intended to solve the above-described problems, and an object of the present disclosure is to provide a method for producing a heat insulating member that suppresses the occurrence of defective thermal fusion of a laminated film. [Means of Solving Problems]

The manufacturing method of the heat insulating member of the present disclosure includes: Forming step, is to form the thermal insulation member comprising outer covering member, core material and opening portion, and this outer covering member is by making the 2 laminated films comprising the gas barrier layer and the heat fusion layer to overlap in a way that the heat fusion layer is face-to-face and heat-sealing the periphery to perform initial sealing, the core material is accommodated in the outer covering member, and the opening is formed between one of the initially sealed portions of the laminated film and the core material; a drying step for drying the inside of the outer covering member and the core material; and In the final sealing step, the interior of the outer covering member is degassed through the opening portion, and the opening portion, the part in contact with the outer covering member and the core material are thermally welded, and the outer covering member is sealed and finally sealed. [Effect of invention]

According to the manufacturing method of the heat insulating member of this disclosure, since the laminated film can be prevented from being thermally welded under bending, the occurrence of defective thermal welding of the laminated film can be suppressed.

Hereinafter, the heat insulating material of the embodiment of the present disclosure and its manufacturing method will be described. [Embodiment 1] <Configuration of heat insulating material> As shown in FIGS. 1 to 3 , the heat insulating member 1 of the present embodiment includes: a core material 2 for suppressing the propagation of heat; a rectangular outer covering member 3 for accommodating the core material 2 ; The powdery adsorbent 4 is an adsorbent gas.

The core material 2 is formed by the laminated body of the glass wool with a high space existence ratio. The glass wool lamination system is formed by laminating glass wool in a plurality of layers. The glass wool laminate system is suitable as the core material of the heat insulating material 1 because it can maintain a high space ratio even when compressed.

The outer covering member 3 is a member covering the core material 2 . The outer cover member 3 is formed by performing initial sealing by thermally welding the four sides of the two rectangular laminated films 5a and 5b.

The laminated film 5a is formed by laminating at least the gas barrier layer 52 and the heat-sealing layer 53 in this order on the resin film 51 as shown in FIG. 4 . The laminated film 5b also has the same structure.

The resin film 51 is a base material that supports the gas barrier layer 52 and the thermal fusion layer 53 , and is also a layer that protects the surface of the heat insulating member 1 . The resin film 51 is formed of a thermoplastic resin film. As the material of the thermoplastic resin film, polyethylene film and polyester film are preferable.

The gas barrier layer 52 is a layer that prevents the permeation of air inside the heat insulating member 1 . The gas barrier layer 52 is formed by metal foil or metal vapor deposition, and is laminated on the resin film 51 . As the metal used for metal foil or metal vapor deposition, aluminum is preferable.

The thermal fusion layer 53 is melted by being heated, and an adhesive layer appears. The heat-sealing layer 53 and the heat-sealing layers 53 of the other resin films 51 are adhered to each other by being heated and pressurized. The heat-sealing layer 53 is formed of, for example, a polyolefin resin or a heat-sealing adhesive.

The core material 2 is covered with the laminated film 5a from the top, and is covered with the laminated film 5b from the bottom. The four sides of the laminated film 5a and the four sides of the laminated film 5b are thermally welded.

As shown in FIGS. 1 and 3 , the outer covering member 3 has a first opening 6 a , a second opening 6 b , annular initial sealing parts 7 a to 7 d , and a final sealing part 8 . 1 and 3 are not cross-sectional views, but the ring-shaped initial sealing portions 7a to 7d are shown by the bottom of the mesh, and the final sealing portion 8 is shown by the hatched portion. In addition, the 1st opening part 6a and the 2nd opening part 6b are not shown in figure in FIG. In addition, the initial sealing parts 7a-7d are examples of a 1st sealing part, and the final sealing part 8 is an example of a 2nd sealing part.

The initial sealing portions 7a to 7d are the four sides of the two rectangular laminated films 5a and 5b that are thermally welded. In the initial sealing, the four sides of the laminated films 5a and 5b are thermally welded and sealed.

The 1st opening part 6a and the 2nd opening part 6b are the part formed in order to escape the gas component in the inside of the cover member 3 in a process. The second opening 6b is larger than the first opening 6a and has a size that allows the core 2 to pass through in order to accommodate and use the core 2 inside the cover member 3 in the manufacturing process. In the present embodiment, as shown in FIG. 1 , the second opening 6b has a length that reaches the initial sealing portions 7a and 7c at both ends.

The final sealing portion 8 is formed between the first opening portion 6 a and the second opening portion 6 b of the laminated films 5 a and 5 b and the core material 2 . The final sealing portion 8 is a portion where the laminate film 5a and the laminate film 5b are thermally welded to seal the cover member 3 after the deaeration of the inside of the cover member 3 is completed in a process described later. The core material 2 is surrounded and sealed by the final sealing portion 8 and the initial sealing portions 7a, 7b, and 7c. The sealed area formed in this way is maintained in a depressurized state of 0 or more and 10 Pa or less.

In addition, when the core material 2 is sealed, the laminated films 5a and 5b are elongated due to the expansion of the outer covering member 3, and the laminated films 5a and 5b are deformed. Due to this deformation, a load is generated in the final sealing portion 8 of the heat insulating member 1 . This load becomes larger as the end of the core material 2 is closer to the final seal 8 . In this case, peeling may occur in the final sealing portion 8 .

Therefore, in order to suppress deformation of the laminated films 5a and 5b, it is preferable that the final sealing portion 8 and the end portion of the core material 2 are separated from each other. In order to sufficiently secure the distance between the final sealing portion 8 and the end of the core material 2 , it is preferable to form the opening portion 6 near the initial sealing portion 7d and form the final sealing portion 8 near the opening portion 6 .

The adsorbent 4 is accommodated in the heat insulating member 1 together with the core material 2 . The adsorbent 4 adsorbs the gas generated inside the heat insulating member 1 , and maintains the degree of vacuum in the heat insulating member 1 .

In addition, the part shown by the code|symbol D in FIG. 3 is a part outside the final sealing part 8 of the heat insulating material 1, and includes the 1st opening part 6a, the 2nd opening part 6b, and the initial sealing part 7d. Therefore, when using the heat insulating material 1, the part shown by the code|symbol D can also be cut out. <Manufacturing method>

Next, the manufacturing method of the heat insulating material 1 is demonstrated. First, the core material 2, the laminated films 5a and 5b, and the adsorbent 4 used for the manufacture of the heat insulating material 1 are prepared. The core material 2 is formed of a laminate of layers of glass wool. The size of the glass wool prepared at this stage is 5 to 50 times the size in the thickness direction of the core material 2 when the heat insulating member 1 is completed.

Moreover, two rectangular laminated films 5a and 5b were prepared. The laminated films 5a and 5b are each formed by laminating a resin film 51, a gas barrier layer 52, and a heat-sealing layer 53 in this order, as shown in FIG. 4, respectively. The adsorbent 4 is formed such that calcium oxide powder is accommodated in an air-permeable bag, for example.

Next, the outer covering member 3 is produced. The rectangular laminated films 5a, 5b are aligned and overlapped so that the thermal fusion layers 53 face each other. Next, the edge parts of the four sides of the laminated films 5a and 5b are thermally welded to form the initial sealing parts 7a to 7d. This is because the positional displacement of the laminated films 5a and 5b can be suppressed by fixing the surrounding four sides by the initial sealing portions 7a to 7d.

Then, the first opening 6a and the second opening 6b are formed. First, although not shown, the first opening 6a is formed at the position between the position where the core material 2 of the laminated film 5a on the upper surface of the outer covering member 3 is to be arranged and the initial sealing portion 7d. Furthermore, as shown in FIG. 5, the 2nd opening part 6b is formed in the position where the laminated film 5b of the lower surface of the cover member 3 overlaps with the 1st opening part 6a.

The 1st opening part 6a is used for the step of drying and degassing mentioned later, and it is used for the escape of gas, and the opening does not need to be large. On the other hand, since the 2nd opening part 6b is used for inserting the core material 2 into the outer cover member 3, as will be described later, it is formed in the size which the core material 2 can pass.

Next, the core material 2 is compressed in the thickness direction by a compressor. Here, the thickness of the core material is a thickness that is compressed to a thickness that is 2 times to several times the dimension in the thickness direction when the heat insulating material 1 is completed. Then, the core material 2 is inserted into the outer covering member 3 through the second opening 6b.

Next, the contained core material 2 and the outer covering member 3 are put into the drying furnace for about 30 minutes to 5 hours, and dried. Thereby, the moisture and other volatile components adsorbed by the laminated films 5a and 5b and the core material 2 are desorbed and discharged from the first opening 6a and the second opening 6b. The temperature inside the drying furnace is set to be about 10°C to 20°C lower than the lowest temperature among the melting temperatures of the resins constituting the laminated films 5a and 5b. It is used to prevent the melting of the thermal fusion layer 53 .

Then, the inside of the cover member 3 is degassed. First, the outer covering member 3 in the state in which the core material 2 has been accommodated is taken out from the drying furnace, and as shown in FIG. 6 , is installed in the vacuum container 20 . Inside the vacuum container 20, a restriction plate 21 and a sealing and welding machine 22 are provided. Between the two restricting plates 21, the outer covering member 3 in which the core material 2 has been accommodated is installed and fixed.

Next, the adsorbent 4 is inserted into the inside of the outer covering member 3 through the second opening 6b.

Next, the vacuum vessel 20 is evacuated to depressurize the inside. As the pressure inside the vacuum vessel 20 is depressurized, the air inside the outer covering member 3 and the inside of the core material 2 flows out of the vacuum vessel 20 through a first opening 6a (not shown) and a second opening 6b (not shown). exhausted.

After the pressure inside the vacuum vessel 20 was evacuated from 0 to 10 Pa, the laminated film 5 a and the laminated film 5 b were thermally welded to form the final sealing portion 8 . The thermal welding is performed using the sealing machine 22 installed in the vacuum container 20 . The thermally welded portion is the portion between the first opening 6a and the second opening 6b and the core material 2 . Therefore, the core material 2 is accommodated in the area|region enclosed by the initial sealing parts 7a-7c and the final sealing part 8 of the outer cover member 3, and this area|region is sealed in the vacuumized state. By this final sealing, the heat insulating material 1 of Embodiment 1 shown in FIG. 1 is manufactured.

After taking out the heat insulating material 1 from the vacuum container 20, the heat insulating material 1 is compressed by the external air pressure, and the heat insulating material 1 of the designed size is obtained. <Action effect>

By the initial sealing, slippage between the laminated films 5a and 5b is suppressed. Furthermore, since the laminated films 5a and 5b are heated and a little pressure is applied at the time of thermal welding, the density of the thermally welded layer 53 after the thermally welded is higher than that before the thermally welded. In this way, the initial sealing portions 7a to 7d formed by thermal fusion of the laminated films 5a and 5b are less bendable and higher in strength than the laminated films before thermal fusion.

Therefore, the laminated film 5a around the first opening 6a surrounded by the initial seals 7a, 7c, and 7d is strongly restrained by the initial seals 7a, 7c, and 7d, and becomes difficult to loosen. Therefore, in the final sealing step, the laminated film 5a around the first opening 6a is thermally welded to the laminated film 5b without being bent.

In this way, the state where the laminated films 5a and 5b are thermally welded in a bent state is suppressed, and the occurrence of wrinkles in the final sealing portion 8 is suppressed. According to this Embodiment 1, the thermal-welding defect of the final sealing part 8 in the step of final sealing is suppressed, and the heat insulating member 1 which suppresses the thermal-welding defect is obtained. [Embodiment 2]

The manufacturing method of the heat insulating material of Embodiment 2 is demonstrated. In addition, the structure of the heat insulating material 1 of Embodiment 2 is the same as that of the heat insulating material 1 of Embodiment 1 shown in FIGS. 1-3 except that the dimension of the 2nd opening part 6b is small. <Configuration of heat insulating material 1>

In Embodiment 2, the same reference numerals are attached to the same components as those in the first embodiment, and the differences will be mainly described.

The manufacturing method of the heat insulating material 1 of Embodiment 2 differs from Embodiment 1 in the state which covers the core material 2 with two laminated films 5a and 5b, and performs initial sealing.

Specifically, as shown in FIG. 7 , on the press 11 , the laminated film 5 b , the core material 2 , and the laminated film 5 a are arranged in this order. Here, the thermal fusion layer 53 of the laminated film 5 a and the laminated film 5 b is in contact with the core material 2 . In addition, at the time of being installed in the press 11, the peripheral edge parts of the laminated film 5a and the laminated film 5b are not in contact with the core material 2. As shown in FIG.

The core material 2 sandwiched by the laminated film 5a and the laminated film 5b is compressed by the press 11. During the compression process, the laminated films 5a and 5b are tensioned toward the outside by the tension maintaining devices 12a and 12b. Thereby, the laminated films 5a and 5b are kept in a flat state without slackening.

The core material 2 is compressed to the same set value as the thickness of the target heat insulating member 1 . When the core material 2 reaches the target thickness, as shown in FIG. 8, the four sides of the laminated films 5a and 5b are thermally welded using the sealing machines 10a and 10b. By this heat fusion, the initial sealing portions 7a to 7d are formed. After the initial sealing is completed, the compression by the press 11 is released. In addition, the non-welded portion around the laminated films 5a and 5b may be removed at this stage.

Then, as shown in FIG. 9 , a first opening 6a is formed in the laminated film 5a of the outer covering member 3, and a second opening 6b is formed in the laminated film 5b. Next, a drying step is performed according to the same method as in Embodiment 1.

Then, the outer covering member 3 of the accommodated core material 2 is moved to the inside of the vacuum container 20 . In the vacuum container 20, as shown in FIG. 10, two restricting plates 21 are provided. The outer covering member 3 is inserted between the two restricting plates 21 . The restricting plate 21 has a gap of about 1.5 times to 5 times the thickness of the outer covering member 3 in which the core material 2 is accommodated. This is for the purpose of easily inserting the outer covering member 3 in which the core material 2 has been accommodated, and preventing the thickness of the core material 2 from recovering when the first opening 6a and the second opening 6b are formed.

The adsorbent 4 is inserted into the inner side of the laminated film 5b of the cover member 3 through the second opening 6b. Then, as shown in FIG. 11, the sealer 22 is moved to a position in contact with the portion inside the first opening 6a and the second opening 6b in relation to the laminated film 5a and the laminated film 5b.

The inside of the vacuum vessel 20 is evacuated to a pressure of 0 or more and 10 Pa or less, and the pressure is reduced. Then, as shown in FIG. 11 , the laminated film 5 a and the laminated film 5 b are thermally welded using the sealer 22 installed in the vacuum container 20 to form the final sealing portion 8 . <Action effect>

In the second embodiment, the laminated film 5a and the laminated film 5b are thermally welded in a state in which the core material 2 is accommodated, and initial sealing is performed. Thereby, a larger amount of the core material 2 can be accommodated inside the outer covering member 3 than in the case where the core material 2 is inserted into the outer covering member 3 produced in advance. After the formation of the initial sealing portions 7a to 7d, the first opening portion 6a and the second opening portion 6b can be formed in a state in which the laminated film 5a and the laminated film 5b are not loosened.

In the second embodiment, the length of the two openings 6 is only related to the size of the adsorbent 4 . Therefore, the length of the second opening 6b can be made shorter than that of the first embodiment. Therefore, compared with the case where the core material 2 is inserted after the initial sealing, the slack of the laminated films 5a and 5b can be suppressed more effectively, and the occurrence of wrinkles in the final sealing portion 8 can be suppressed.

In this way, according to this Embodiment 2, the heat insulation member 1 with improved reliability is obtained, suppressing the defect of heat fusion in the process of final sealing. Furthermore, in the second embodiment, the core material 2 can be inserted into the inside of the outer covering member 3 without being restricted by the opening portion 6 . Therefore, more core materials can be used, and the high-performance heat insulating member 1 can be easily obtained. [Embodiment 3]

In the above-mentioned first and second embodiments, the openings 6a and 6b are already formed, but the number of the openings is arbitrary. For example, as shown in FIG. 12 , an opening 6b for inserting the core material 2 may be formed only in the laminated film 5b on one side of the cover member 3 . The heat insulating material 1 can be manufactured according to the method similar to Embodiment 1 or 2 except for the above-mentioned steps.

In this configuration, the laminated film 5a has no openings. Therefore, the laminated film 5a is more restrained from the initial sealing parts 7a, 7c, and 7d in the three directions than in the case where the openings are formed. Therefore, in the step of final sealing, the lamination film 5a hardly sags. In this way, according to this Embodiment 3, the failure of thermal fusion in the step of final sealing is suppressed. Furthermore, the trouble of forming two openings can be eliminated. [Variation 1]

In the manufacturing method of the heat insulating member of the present disclosure, the dimensions of the openings 6a and 6b can be appropriately selected. In the above-described first embodiment, the second opening 6b is formed, and the second opening 6b has a length reaching the initial sealing parts 7a and 7c at both ends. On the other hand, in the modification 1, as shown in FIG. 13, the 2nd opening part 6b is made into the size which does not reach the initial sealing part 7a, 7c of both ends. This is to suppress the length of the opening portion 6b to the minimum required length in order to insert the core material 2 . Except for the above-mentioned steps, the heat insulating member 1 is manufactured according to the same method as that of the first embodiment.

In this structure, the unopened part of the laminated film 5b remains at both ends of the 2nd opening part 6b. Therefore, the laminated film 5b around the second opening 6b is also bound by the initial sealing parts 7a, 7c, and 7d like the laminated film 5a around the first opening 6a. Therefore, in the modification 1, the slack of the laminated film 5b around the second opening 6b is suppressed more strongly than in the first embodiment. In this way, the occurrence of wrinkles in the final sealing step can be suppressed more effectively than in the first embodiment. Therefore, according to the modification 1 of Embodiment 1, the heat insulation member 1 with improved reliability can be obtained, suppressing the defect of thermal fusion. [Variation 2]

In the modification 2, as shown in FIG. 14, the cover member 3 was produced using the laminated films 5a and 5b in which the notch part 30 in the form of a dotted line was provided in advance. By forming the cutout portion 30 in the shape of a dotted line, the initial sealing can be performed in a state in which the laminated films 5a and 5b are not loosened.

The dashed notch portion 30 is connected in series to form the first opening portion 6a. Further, the second opening 6b is formed by further widening the notch portion 30 of the single laminated film on the extension line. Except for the above-mentioned steps, the heat insulating member 1 can be manufactured according to the same method as that of the first embodiment. [Variation 3]

Furthermore, as shown in FIG. 15, in the laminated film 5a, the notch part 30a connected in series with the same length as the 1st opening part is formed. In the laminated film 5b, notch portions 30b in the form of dotted lines are formed on the extension lines on both sides thereof together with the same notch portions 30a.

The notch part 30a of the laminated film 5a is used as the first opening part 6a as it is. As for the laminated film 5b, the cutout portion 30b and the cutout portion 30a are connected in series to form the second opening portion 6b. Except for the above-mentioned steps, the heat insulating member 1 can be manufactured according to the same method as that of the first embodiment. [Embodiment 4]

In the above-mentioned Embodiments 1, 2, and 3, the linear first opening 6a and the second opening 6b are formed, but a planar second opening 6b' as shown in Fig. 16 may be formed.

The method of forming the planar second opening 6b' is not particularly limited, and can be formed according to a known method.

In the configuration in which the planar opening is provided, even when the thickness of the core material 2 is thick, the outer covering member 3 can be easily inserted. Therefore, in Embodiment 4, it is preferable to manufacture the heat insulating material 1 according to the method similar to Embodiment 1.

The core material 2 used in the above-mentioned Embodiments 1 to 4 is not limited to an aggregate of the above-mentioned glass wool. For example, inorganic and organic fiber materials, porous particles, and porous sheets can be used.

Specific examples include aggregates of rock wool, particles of expanded polystyrene, particles of expanded polyurethane, sheets of expanded polystyrene, and sheets of expanded polyurethane. These core materials may be used alone or in combination of two or more.

Moreover, in order to improve the protection and performance of the surface of the heat insulating material 1, the structure which has more layers may be employ|adopted for the laminated film. For example, in order to protect and reinforce the surface of the heat insulating member 1, a resin sheet may be laminated in two or more layers. Moreover, in order to improve the heat insulating property of the heat insulating material 1, you may provide two or more layers of gas barrier layers. [Cooling and heating machine using this heat insulating member]

The heat insulating material 1 manufactured by the above-mentioned method is used for various cooling and heating equipment including refrigerators. Taking a refrigerator as an example, as shown in FIG. 17A , the refrigerator 62 includes an outer panel 60 and an interior member 61 surrounded by the outer panel 60 . Inside the refrigerator 62, as shown in FIG. 17B , the interior member 61 is in a state surrounded by the heat insulating member 1 to which the outer plate 60 is not shown.

A refrigerator using the heat insulating member of the present disclosure is manufactured according to the following method. First, as shown in FIG. 18 , the heat insulating member 1 is pasted to the outer panels 60 of the respective surfaces forming the exterior of the refrigerator. The resin-made interior member 61 is surrounded by the outer panel 60 to which the heat insulating member 1 is attached. Furthermore, the urethane resin is filled in the gap between the outer panel 60 and the interior member 61 without the heat insulating member 1 interposed therebetween. In this way, the refrigerator 62 shown in FIG. 17A is manufactured.

Several embodiments of the present disclosure have been described, but these embodiments are presented as examples and are not intended to limit the scope of the disclosure. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the gist of the disclosure. These embodiments, modifications and the like are included in the scope, gist, etc. of the disclosure, and are also included in the disclosure described in the scope of claims and the scope equivalent thereto.

1: Insulation member 2: core material 3: Outsourcing components 4: Adsorbent 5a: Laminated films 5b: Laminated films 6: Opening 6a: 1st opening 6b: Second opening 6b': 2nd opening 7: Initial sealing part 7a~7d: Initial sealing part 8: Final sealing part 10a: Sealing and welding machine 10b: Sealing machine 11: Press 12a: Tension maintenance device 12b: Tension maintenance device 20: Vacuum container 21: Restriction plate 22: Sealing and welding machine 30: Notch part 30a: Notched part 30b: Notched part 51: Resin film 52: Gas barrier layer 53: Thermal fusion layer 60: outer panel 61: Internal components 62: Refrigerator

1 is a top view and a bottom view of the heat insulating member according to Embodiment 1 of the present disclosure. [ Fig. 2 ] is a cross-sectional view taken along the line II-II of the heat insulating member shown in Fig. 1 . 3] It is a perspective view of the heat insulating material of Embodiment 1. [FIG. 4] It is sectional drawing of the laminated film used for the heat insulating material of Embodiment 1. [FIG. It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 1. It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 1. 7] It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 2. [FIG. 8] It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 2. [FIG. 9] It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 2. [FIG. It is explanatory drawing of the heat insulating material of Embodiment 2. It is explanatory drawing of the manufacturing method of the heat insulating material of Embodiment 2. It is explanatory drawing of the heat insulating material of Embodiment 3. FIG. It is explanatory drawing of the heat insulating material of the modification 1 of Embodiment 1. It is explanatory drawing of the manufacturing method of the heat insulating material of the modification 2 of Embodiment 1. 15] It is explanatory drawing of the manufacturing method of the heat insulating material of the modification 3 of Embodiment 1. [FIG. It is explanatory drawing of the heat insulating material of Embodiment 4. 17A is a view showing an example of a refrigerator using the heat insulating member of the present disclosure. [ Fig. 17B ] A diagram showing an example of the interior of a refrigerator using the heat insulating member of the present disclosure. Fig. 18 shows the heat insulating member and the outer panel of the present disclosure used in a refrigerator Figure of the example.

1: Insulation member

2: core material

3: Outsourcing components

4: Adsorbent

5a: Laminated films

5b: Laminated films

6: Opening

6a: 1st opening

6b: Second opening

7a, 7b, 7c, 7d: Initial seal

8: Final sealing part

Claims (11)

A kind of manufacture method of thermal insulation member, it is to have: forming step, is to form the thermal insulation member that comprises outer covering member, core material and opening portion, and this outer covering member is by making 2 sheets comprising gas barrier layer and thermal fusion layer The laminated film overlaps the heat-welding layer face-to-face and heat-welds the periphery to carry out initial sealing, the core material is accommodated in the outer covering member, and the opening is formed in the cover of the laminated film. Between one of the parts of the initial sealing and the core material; a drying step, drying the inside of the outer covering member and the core material; and a final sealing step, degassing the interior of the outer covering member through the opening , and carry out thermal fusion bonding between the opening portion, the part in contact with this outer covering member and this core material, and this outer covering member is sealed and finally sealed; wherein, the laminated film on both sides of this outer covering member Form this opening, and form the 1st opening at the laminated film on one side of this outer covering member, and form the 2 opening at the other side of the outer covering member, and this 2 opening is higher than the 1st opening The opening is long, and the second opening is opened to a size capable of inserting the core material, and before the drying step, the core material is inserted through the second opening. The manufacturing method of the heat insulating member of claim 1, wherein the second opening is formed in such a size that both ends do not reach the initial sealing portion. The method for manufacturing a heat insulating member according to claim 1, wherein the outer member is manufactured using a laminated film provided with a dashed notch portion; after the initial sealing, the notch portion is used as a series connection to form the second opening part; the core material is inserted from the second opening. The method for manufacturing a heat insulating member according to claim 1, wherein the core material is sandwiched between two laminated films, and the core material is compressed through the two laminated films while the four sides of the two laminated films are Enter Heat welding is performed, whereby the core material is accommodated in the outer covering member, and initial sealing is performed. A kind of manufacture method of thermal insulation member, it is to have: forming step, is to form the thermal insulation member that comprises outer covering member, core material and opening portion, and this outer covering member is by making 2 sheets comprising gas barrier layer and thermal fusion layer The laminated film overlaps the heat-sealing layer face-to-face and heat-welds the periphery to perform initial sealing, the core material is accommodated in the outer covering member, and the opening is formed in the cover of the laminated film. Between one of the parts of the initial sealing and the core material; a drying step, drying the inside of the outer covering member and the core material; and a final sealing step, degassing the interior of the outer covering member through the opening , and thermal fusion is carried out between this opening, the part contacted with this outer covering member and this core material, and this outer covering member is sealed and finally sealed; wherein, only in the single-sided lamination of this outer covering member The film is formed into an opening of a size that can be inserted into the core material; before the drying step, the core material is inserted through the opening. The manufacturing method of the heat insulating member of Claim 5 in which this opening part is formed in the size which does not reach an initial sealing part at both ends. The manufacturing method of the heat insulating member of Claim 1 in which the said 2nd opening part in which the said core material is inserted is formed in a planar shape. The manufacturing method of the heat insulating member of claim 1, wherein when the core material is accommodated inside the outer covering member, or after the drying step, an adsorbent is further inserted into the inside of the outer covering member. A heat insulating member, comprising: an outer covering member formed of two laminated films, the laminated film having a structure in which a gas barrier layer and a heat-sealing layer exhibiting adhesiveness are laminated; and a core material, which is laminated accommodated inside the outer covering member; the heat insulating member is a system; The outer covering member has: a first sealing part formed by two of the laminated films surrounding the core material and welded to each other in a ring shape; and a second sealing part formed on the first part of the two laminated films between one of the sealing parts and the core material; in the sealing area surrounded by the first sealing part and the second sealing part, the core material is accommodated, and the inside of the sealing area is maintained in a depressurized state; in the 2 At least one of the laminated films has an opening on the inner side of the first sealing portion; the laminated film on both sides of the outer covering member forms the opening, and the laminated film on one side of the outer covering member forms the first sealing portion. an opening, and a second opening is formed in the laminated film on the other side of the outer covering member, the second opening is longer than the first opening, and the second opening is opened into a size that can be inserted into the core material ; From the second opening, insert the core material. A cooling/heating machine, which is a cooling/heating machine having an outer panel, an interior member and the heat insulating member as claimed in claim 9, wherein: the outer panel forms each surface of the cooling/heating machine, and the heat insulating member is pasted on the outer panel ; The interior member is surrounded by the outer panel to which the heat insulating member has been pasted. A manufacturing method, which is a manufacturing method of a cooling and heating machine, the cooling and heating machine having an outer plate, an interior member and a heat insulating member as claimed in claim 9, the manufacturing method comprising: a sticking step, in forming the outer casing of the cooling and heating machine In the outer plate of each side, the heat insulating member is pasted; and in the enclosing step, the interior member is surrounded by the outer plate to which the heat insulating member has been pasted.

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