JP7174938B2 - Gas adsorption device and vacuum insulation - Google Patents

Description

TECHNICAL FIELD The present invention relates to improving the reliability of a vacuum heat insulating material equipped with a gas adsorption device capable of adsorbing nitrogen and oxygen.

In recent years, the demand for heat insulating materials using high vacuum is increasing.

BACKGROUND ART For household electrical appliances, particularly in heat and cold storage equipment such as refrigerators, freezers, and vending machines, there is a demand for heat insulating materials having excellent heat insulating performance in order to reduce heat loss.

In recent years, in order to reduce the consumption of energy such as electricity and gas, a heat insulating material with excellent heat insulating performance is required not only for household electric appliances but also for houses and the like.

Glass wool and urethane foam are generally used as heat insulating materials. However, in order to improve the insulation performance of these heat insulating materials, it is necessary to increase the thickness of the heat insulating materials. This method cannot be applied when there is a limit to the space that can be filled with heat insulating material, or when space saving or effective use of space is required.

Therefore, a vacuum heat insulating material has been proposed as a high-performance heat insulating material that solves the above problems. This is a heat insulator in which a core material serving as a spacer is inserted into an outer covering material having gas barrier properties, and the inside is depressurized and sealed.

The vacuum heat insulating material has a high heat insulating property because the inside is vacuum, but the performance changes greatly due to the decrease in the degree of the inside vacuum.

The main factors that reduce the degree of vacuum inside the outer covering material are gases, mainly nitrogen, oxygen, and moisture, that remain in the outer covering material during production, and gases that pass through the outer covering material and enter the interior over time. is.

In order to adsorb moisture among these gases, a method has been devised in which a moisture adsorbent is inserted into the outer covering material of the vacuum heat insulating material together with the core material.

In order to adsorb components other than moisture such as nitrogen and oxygen, a method has been devised in which a gas adsorption device capable of adsorbing nitrogen, oxygen and moisture is inserted into the outer covering material of the vacuum insulation material together with the core material. . As a gas adsorption device, a gas-adsorbing substance such as zeolite, etc., is sealed under reduced pressure inside a gas-poorly permeable container. After inserting the gas adsorption device into the outer covering material of the vacuum insulation material together with the core material, a part of the gas-impermeable container that covers the gas adsorption material is broken, and the gas inside the outer covering material of the vacuum insulation material is removed. is adsorbed on the gas-adsorbing substance, it is possible to keep the degree of vacuum inside the vacuum heat insulating material low. As a breaking method, a method has been devised in which a part of the container is made of a brittle material, and a load is applied to the brittle material to deform it to break it, thereby creating an opening in the container (Patent Document 1).
In addition, a method has been devised in which an opening member having protrusions is attached to a gas-impermeable container constituting a gas adsorption device, and a load is applied to the opening member so that the protrusions form an opening in the container. (Patent document 2)

JP 2013-208615 A WO2012/098896

However, in the configuration described in Patent Document 1, when the brittle substance is destroyed, the brittle substance may be pulverized and the pulverized brittle substance may block the opening. , a large ventilation resistance is generated between the gas adsorption substances, and there is a problem that the gas adsorption speed (mol/s) and the adsorption amount (mol/piece) required for the gas adsorption device cannot be obtained.

Conversely, when the brittle material is destroyed, a large crack may be formed and the ventilation resistance between the inside of the vacuum insulation material and the gas adsorbing material may decrease. Moisture remaining in the outer covering material and moisture passing through the outer covering material over time and entering the outer covering material are removed by the gas adsorption device rather than the moisture adsorbent inserted into the vacuum insulation material together with the gas adsorption device. is preferentially adsorbed, and the gas adsorption device does not sufficiently adsorb components such as nitrogen and oxygen.

In addition, the molding process of the vacuum insulation material and the load caused by the atmospheric pressure that is constantly applied to the vacuum insulation material easily destroys brittle substances, and the moisture remaining in the outer covering material during the production of the vacuum insulation material is absorbed by the gas. There is a problem that the gas adsorption device preferentially adsorbs components such as nitrogen and oxygen over the moisture adsorbent inserted into the vacuum heat insulating material together with the device, and the gas adsorption device does not sufficiently adsorb components such as nitrogen and oxygen.

As a method for confirming the breakage of a brittle material, it is conceivable to confirm a faint sound wave generated at the time of breakage, but this confirmation is difficult because the sound wave is small.

Further, in the configuration described in Patent Document 2, an opening is formed in the container of the gas adsorption device by an unsealing member having a projection. , the problem is that the total thickness of the gas adsorption device increases. This means that the vacuum heat insulating material to be mounted cannot be made thin or smooth, and this greatly limits the design and heat insulation performance of the product on which the vacuum heat insulating material is mounted.

If the surface of the vacuum insulation material is not smooth and has undulations, stress such as rubbing is applied intensively to the undulations, causing the problem that the outer covering material of the vacuum insulation material is easily damaged.

In addition, when vacuum insulation materials are piled up for storage, etc., the load is concentrated on the undulations, and the protrusions form openings in the container of the gas adsorption device at an unintended timing. The moisture remaining inside is preferentially adsorbed by the gas adsorption device over the moisture adsorption material inserted into the vacuum insulation material together with the gas adsorption device, and the gas adsorption device sufficiently removes components such as nitrogen and oxygen. There is a problem that it will not be adsorbed.

In addition, since the opening member is attached to the container of the gas adsorption device, there is a possibility that the opening member may come off during production of the vacuum insulation material, or the position of the opening member may change, making it impossible to form an opening in the container of the gas adsorption device. , is a problem.

Furthermore, since the opening member is attached to the container of the gas adsorption device, the opening member may be attached to the vacuum insulation material when the gas adsorption device is inserted into the vacuum insulation material or during storage of the vacuum insulation material having the gas adsorption device. There is a problem that it comes into contact with the outer covering material and leads to breakage of the outer covering material.

The present invention solves the above-mentioned problems, and is a gas adsorption device comprising a container composed of at least a soft packaging material made of a gas-impermeable material, a gas adsorbent, and an unsealing member forming an opening in the container. wherein the opening member has a protrusion that creates an opening in the container, the opening member is inside the container, and the protrusion is arranged in a horizontal direction with respect to the plane that creates the opening. When a load is applied to the unsealing member, the container around the unsealing member is deformed, the protrusions of the protrusions come into contact with the container, and the protrusions form openings in the container. Device.

Normally, the protrusions of the opening member are positioned perpendicular to the plane of the opening, or nearly perpendicular to the plane at an angle, which increases the total thickness of the gas adsorption device.

If this positional relationship is not perpendicular to the plane on which the opening is to be made, but is close to horizontal, the operating part of the opening part that moves the projection to make the opening will become complicated, and the gas adsorption device will not work properly. The total thickness will be the same or greater, which is impractical.

Therefore, it is necessary to make the protrusions that form the openings horizontal and have no moving parts or a form that hardly moves. It becomes possible to make

Since the opening is directly formed in the outer covering material, the gas adsorption speed of the gas adsorption device does not become too low unlike the method described in Patent Document 1, which destroys the brittle substance. By providing the mechanism inside the container of the gas adsorption device, the gas adsorption speed of the gas adsorption device can be easily adjusted.

The projections of the unsealing member are arranged horizontally with respect to the container of the gas adsorption device, and the container must be deformed to form the opening. Since it is necessary to concentrate on the pressure, it is possible to greatly reduce the possibility of unintentionally creating openings during molding of atmospheric pressure and vacuum insulation materials.

In addition, since the projections of the opening member are arranged horizontally with respect to the container of the gas adsorption device, the total thickness of the gas adsorption device can be made thinner than the method described in Patent Document 2. This leads to an improvement in the smoothness of the vacuum insulation material and a reduction in the risk of breakage of the outer covering material of the vacuum insulation material.

Furthermore, according to this configuration, the opening member can be placed inside the container of the gas adsorption device, not outside the container. things will go away. In addition, when inserting the gas adsorption device into the vacuum insulation material or during storage of the vacuum insulation material with the gas adsorption device, the opening member comes into contact with the outer covering material of the vacuum insulation material, greatly reducing the risk of damaging the outer covering material. can be reduced to Furthermore, when discarding the vacuum insulation material, the gas adsorption device can be easily sorted together with the container.

According to the present invention, the openings formed in the gas adsorption device in the vacuum heat insulating material can be stabilized, the gas adsorption speed of the gas adsorption device can be stabilized, and accordingly the gas adsorption amount can be easily stabilized.

In addition, since the container of the gas adsorption device does not open unless a concentrated load is applied to the unsealing member of the gas adsorption device, the possibility of opening at an unintended timing is greatly reduced. It becomes easy to stabilize the gas adsorption amount.

In addition, the total thickness of the gas adsorption device can be reduced, the flatness of the vacuum insulation material on which the gas adsorption device is mounted can be improved, and the risk of breakage of the outer covering material of the vacuum insulation material can be reduced.

Furthermore, it is possible to arrange the opening member inside the container of the gas adsorption device, thereby preventing the removal of the opening member and the change of the mounting position, surely creating an opening in the gas adsorption device, and allowing the gas adsorption device to adsorb the gas. volume stabilization is possible.

Schematic diagram of a gas adsorption device in Embodiment 1 of the present invention BRIEF DESCRIPTION OF THE DRAWINGS The schematic of the cross section of the vacuum heat insulating material in Example 1 of this invention Schematic diagram of a gas adsorption device in Embodiment 2 of the present invention Schematic diagram of an unsealing member possessed by a gas adsorption device in Example 4 of the present invention Schematic diagram of an unsealing member possessed by a gas adsorption device in Example 5 of the present invention Schematic diagram of an unsealing member possessed by a gas adsorption device in Example 6 of the present invention Schematic diagram of a gas adsorption device according to Embodiment 3 of the present invention

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic diagram of a gas adsorbent according to a first embodiment of the invention.

As shown in FIG. 1, the gas adsorption device 1 of this embodiment includes a container 2 made of a flexible packaging material made of a material with low gas permeability, a gas adsorbent 3, and the container It consists of an opening member 4 which creates an opening in the.

The unsealing member 4 has a protrusion 5 that forms an opening in the container 2 made of a soft packaging material that is impermeable to gas.

The unsealing member 4 is placed inside the container 2 made of a soft packaging material that is impermeable to gas.

The projecting portion 5 is arranged in a horizontal direction with respect to the surface forming the opening, and when a load is applied to the opening member 4, the container made of a soft packaging material made of a gas impermeable material around the opening member 4 2 is deformed, the protrusion 5 of the unsealing member 4 comes into contact with the container 2 made of the flexible packaging material of the gas-impermeable material, and the protrusion 5 opens in the container 2 of the flexible packaging material of the gas-impermeable material. make.

As in the above configuration, the unsealing member 4 is arranged horizontally with respect to the container 2 made of the soft packaging material of the gas-impermeable material, and the protrusions 5 of the opening member 4 are positioned in the flexible packaging of the gas-impermeable material. The total thickness of the gas adsorption device 1 can be reduced because the container 2 made of material does not have a moving part for making an opening.

In addition, since the opening member 4 including the projecting portion 5 is arranged inside the container 2 made of a soft packaging material that is impermeable to gas, when the gas adsorption device is inserted inside the jacket material of the vacuum insulation material, In addition, the risk of damaging the outer covering material of the vacuum insulation material can be reduced.

This means that the risk of damage to the outer covering material of the vacuum insulation material can be reduced during storage and use of the vacuum insulation material equipped with the gas adsorption device.

Furthermore, it is possible to substantially eliminate the possibility that the unsealing member 4 and the protruding part 5 will come off the gas adsorption device when the gas adsorption device is inserted into the vacuum insulation material or after being inserted into the vacuum insulation material.

Since the inside of the gas adsorption device is at a pressure lower than the atmospheric pressure and the pressure inside the outer covering material of the vacuum heat insulating material, it is made of a flexible packaging material of a gas-impermeable material. Due to the pressure difference between the inside and outside of the gas adsorption device 1, the container 2 is deformed toward the inside of the container 2 made of the soft packaging material of the gas-impermeable material. Since the unsealing member 4 and the protrusions 5 are strongly fixed, the possibility of the unsealing member 4 and the protrusions 5 moving inside the container 2 made of the soft packaging material of the gas-impermeable material can be greatly reduced.

Since the load applied by the pressure difference between the inside and outside of the container 2 made of the soft packaging material of gas-impermeable material is perpendicular to the container 2 made of the flexible packaging material of the gas-impermeable material, the flexible packaging material is made of the gas-impermeable material. The unsealing member 4 and the projecting portion 5 which are horizontally fixed to the container 2 made of gas-impermeable material apply a load sufficient to form the opening 9 in the container 2 made of the soft-packaging material of the gas-impermeable material. Do not add to container 2 made of material.

Although the unsealing member 4 shown in FIG. 1 has a cylindrical shape, the same effect can be obtained even if the opening member 4 has a plate shape or a shape in which the column and the plate-like members are curved.

The projecting portion 5 shown in FIG. 1 has a sharp tip. Other shapes, such as spheres, may be used as long as they are loaded enough to form a .

FIG. 2 is a schematic cross-sectional view of a vacuum heat insulating material on which the gas adsorption device 1 shown in FIG. 1 is mounted. In the schematic diagram of the cross-section of the vacuum heat insulating material shown in FIG. It shows the after state.

As shown in FIG. 2, the vacuum heat insulating material 6 covers the core material 7 and the gas adsorption device 1 with a jacket material 8 made of a gas-impermeable material. The pressure inside the outer covering material 8 is reduced to a pressure lower than the atmospheric pressure, and by applying a concentrated force to the opening member 4 of the gas adsorption device 1, the gas impermeable material The container 2 made of the flexible packaging material is deformed, the protrusion 5 of the opening member 4 comes into contact with the container 2 made of the soft packaging material of the gas-impermeable material, and the gas-impermeable material of the gas adsorption device 1 is softened. An opening 9 is formed to connect the inside of the container 2 made of the packaging material and the space inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

Due to the concentrated load applied to the opening member 4, the core material 7 is deformed, and a concave portion 10 is formed on the surface of the vacuum heat insulating material 6 at the position where the load is applied.

Although the recess 10 is shown in FIG. 2, the recess 10 does not exist when the core material 7 is made of a highly restorable material, and the presence or absence of this does not affect the present invention.

More preferably, the opening member 4 or It is preferable that the protrusion 5 has a higher Young's modulus than the container 2 made of a soft packaging material that is impermeable to gas.

In order to reduce the reduction in the degree of vacuum inside the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 due to residual moisture, , a moisture adsorbent (not shown in the figure) may be inserted together with the gas adsorption device 1 .

The openings 9 shown in FIG. 2 need only be sufficiently large for the gas molecules and need not be clear visible through-holes, for example slight cracks.
(Example 1)
Next, Example 1 of the gas adsorption device 1 according to the first embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

As a container 2 made of a flexible packaging material made of a gas-impermeable material for the gas adsorption device 1, a composite made of a PET layer deposited with aluminum, an aluminum layer, and a low-density polyethylene layer was used. A layer material was used. The thickness of the PET layer deposited with aluminum was 12 μm, the thickness of the aluminum layer was 6 μm, and the thickness of the low-density polyethylene layer was 50 μm. Two of the multi-layered films are arranged so that the low-density polyethylene layers face each other, and the peripheral portion is heated and welded to form a bag shape, forming a container 2 made of a flexible packaging material made of a gas-impermeable material. did.

As for the dimensions of the container 2 made of the soft packaging material of gas-impermeable material, the length of the short side was 45 mm and the length of the long side was 110 mm.

The gas permeation rate (oxygen) of this multilayer material was 1 cc/(day·m ² ·MPa) or less.

In the state where the opening 9 is not formed, the gas adsorbent 3 sealed inside the container 2 made of a soft packaging material of gas-impermeable material does not adsorb the gas around the gas adsorption device 1, and the gas Adsorption capacity was maintained at the time of encapsulation.

In this embodiment, a multilayer film composed of the above resin and aluminum foil was used, but other materials may be used as long as they have gas barrier properties and are easily deformed under load.

ZSM-5 type zeolite was used as the gas adsorbent 3 . The adsorbed gas was degassed by heating in advance in a vacuum, and the adsorbed gas was used.

The unsealing member 4 was made of stainless steel and had a cylindrical shape. The diameter was 1 mm.

The projecting portion 5 was formed by processing one end of the cylinder of the unsealing member 4 to have a radius of 1 mm.

The unsealing member 4 including the projecting portion 5 is formed by heat-welding one short side and two long sides of the container 2 made of a soft packaging material made of a gas-impermeable material to form a bag. It was arranged on the short side of a container 2 made of a soft packaging material made of a low-permeability material so as to be parallel to the short side.

After that, the gas adsorbent 3 degassed in advance is filled in the container 2 made of a soft packaging material of gas-impermeable material in an argon atmosphere, and the vacuum atmosphere is again made, and then the soft packaging of the gas-impermeable material is performed. The non-welded short side of the container 2 made of material was thermally welded and sealed.

The filling weight of the gas adsorbent 3 in the container 2 made of a soft packaging material of gas-impermeable material was 0.5 g. The gas adsorption capacity of this gas adsorbent 3 at 10 Pa was 4 cc/g.

Since the Young's modulus of the container 2 made of a soft packaging material made of a gas-impermeable material is lower than that of the unsealing member 4, by applying a concentrated load to a part of the unsealing member 4, the gas-impermeability can be improved more than that of the unsealing member 4. The container 2 made of the flexible packaging material is greatly deformed, and the protrusion 5 of the opening member 4 comes into contact with the container 2 made of the flexible packaging material of gas-impermeable material, and an opening 9 is formed.

As a result, the atmosphere inside and outside the gas adsorption device 1 communicates, and the gas around the gas adsorption device 1 can be adsorbed.

Next, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

Glass wool was used for the core material 7 of the vacuum heat insulating material 6 . The core material 7 had a width of 250 mm, a length of 320 mm, and a weight of 202 g.

A composite film in which a 15 μm nylon layer, a 25 μm nylon layer, a 6 μm aluminum layer, and a 50 μm low-density polyethylene layer were laminated was used as the exterior material.

In this example, a multilayer film made of the above resin and aluminum foil was used, but other materials may be used as long as they have gas barrier properties.

The two films described above were formed into a bag shape by placing the low-density polyethylene layers facing each other and heat-sealing the peripheral edges.

The gas adsorption device 1 was placed inside the core material 7 without the opening 9, and inserted together with the core material 7 into the outer covering material 8 made of a gas impermeable material.

The inside of the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 was decompressed to set the thermal conductivity to 3.5 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used for applying the load was a pressing machine to which a urethane jig of φ10 mm was fixed.

A force of 20 kgf was applied to the unsealing member 4 from the outside of the covering member 8 made of a gas impermeable material by the press machine.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.0 mW/m·K.

Before and after applying the above load, the thermal conductivity decreased by 1.5 mW/m·K. Furthermore, by applying the above load to the opening member 4 from the outside of the outer covering material 8 made of a gas-impermeable material, the container of the gas adsorption device 1 made of a soft packaging material of a gas-impermeable material 2 is formed with an opening 9, and the gas adsorbent 3 absorbs the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6.
(Second embodiment)
FIG. 3 is a schematic diagram of the unsealing member 4 mounted on the gas adsorption device 1 in the second embodiment of the present invention.

The unsealing member 4 has a protrusion 5 arranged inside the outer surface of the unsealing member 4 and has an easily breakable deformable portion 11 that breaks or deforms when a load is applied. is a position where the projecting portion 5 protrudes outward from the outer surface of the unsealing member 4 when it is broken or deformed at the easily breakable deformable portion 11 .

The projecting portion 5 and the easily breaking deformable portion 11 are formed by arranging the cut-out portion 12 in the unsealing member 4 . The cut-out portion 12 is formed by penetrating the unsealing member 4 in the thickness direction.

The protrusion 5 has a sharp shape due to the cut-out portion 12 , and when it comes into contact with the container 2 made of the soft packaging material of the gas-impermeable material of the gas adsorption device 1 , the protrusion 5 is a soft material of the gas-impermeable material. Since the load is applied intensively to the container 2 made of the packaging material, an opening 9 is formed in the container 2 made of the soft packaging material of gas-impermeable material.

The breakable deformable portion 11 is easily broken or deformed by a load because the number of members constituting the unsealing member 4 by the cutout portion 12 is smaller than other positions of the unsealing member 4 .

In the present embodiment, the cutout portion 12 is used to form the projecting portion 5 and the easily breakable deformable portion 11, but they may be formed by notches or members that are easily broken or deformed.

The unsealing member 4 shown in FIG. 3 is arranged inside the container 2 made of the soft packaging material of the gas-impermeable material, similarly to the first embodiment, and the gas is It is referred to as adsorption device 1 .

According to the configuration of this embodiment, when a load is applied to the unsealing member 4, the easily rupture deformable portion 11 of the unsealing member 4 is ruptured or deformed, and the gas-impermeable material around the unsealing member 4 is softly wrapped. When the container 2 made of the material is deformed, the projecting portion 5 of the opening member 4 comes into contact with the container 2 made of the flexible packaging material of the gas-impermeable material, and the projecting portion 5 becomes the soft packaging material of the gas-impermeable material. An opening 9 is made in a container 2 made of material.

With the above configuration, there is not only the advantage described in the first embodiment, but also because the protrusions 5 are arranged inside the outer surface of the unsealing member 4, the unsealing member 4 adsorbs gas before the opening 9 is formed. It is possible to further reduce the risk of damaging the container 2 of the device 1, which is made of a soft packaging material that is impermeable to gas.

In FIG. 3, the shape of the unsealing member 4 is a rectangular plate, but the shape may be rounded, square, circular, or elliptical, and the shape is not limited to this.
(Example 2)
Next, Example 2 of the gas adsorption device 1 according to the second embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the opening member 4 is as described in the first embodiment.

The material of the unsealing member 4 was a stainless steel plate.

The dimensions of the opening member 4 were 10 mm in width, 35 mm in length, and 1 mm in thickness.

The cut-out portion 12 was formed by penetrating the stainless steel plate forming the unsealing member 4 with a width of 0.5 mm in the thickness direction.

R of the tip of the protrusion 5 was formed to be 0.5 mm.

The easy breaking deformable portion 11 is formed by setting the width of the unsealing member 4 at both ends of the cut-out portion 12 to 1 mm on each of the stainless steel plates constituting the opening member 4 .

The width of the unsealing member 4 is 35 mm, but by narrowing the width of the easily rupture deformable portions 11 at two locations to 1 mm, the easily rupture deformable portions 11 are preferentially broken or deformed when a load is applied to the unsealing member 4. do.

The unsealing member 4 was placed inside the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas.

A method for manufacturing the gas adsorption device 1 is as described in the first embodiment.

By applying a concentrated load to a part of the unsealing member 4, the breakable deformable portion 11 of the unsealing member 4 is broken or deformed, and the projecting portion 5 of the container 2 is made of a soft packaging material of gas-impermeable material. At the same time, the container 2 made of a soft packaging material having a gas-impermeable material having a Young's modulus lower than that of the unsealing member 4 deforms more than the unsealing member 4, and the protrusion 5 of the unsealing member 4 becomes gas-impermeable. An opening 9 is made in contact with a container 2 made of flexible packaging material.

As a result, the atmosphere inside and outside the gas adsorption device 1 communicates, and the gas around the gas adsorption device 1 can be adsorbed.

Next, the gas adsorption device 1 was mounted on the vacuum heat insulating material 6 .

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The thermal conductivity of the vacuum heat insulating material 6, which is obtained by decompressing the inside of the outer covering material 8 made of a gas-impermeable material, is set to 3.8 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used to apply the load and the conditions for the applied load are as described in Example 1.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.5 mW/m·K.

Before and after the load was applied, the thermal conductivity decreased by 1.3 mW/m·K. means.

Therefore, by applying a load to the unsealing member 4 from the outside of the jacket material 8 made of a gas-impermeable material, an opening 9 is formed in the container 2 of the gas adsorption device 1 made of a soft packaging material of a gas-impermeable material. is produced, and the gas adsorbent 3 can be said to have absorbed the gas inside the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 .

After the above confirmation, the gas adsorption device 1 was taken out from the vacuum insulation material 6 and confirmed. It was confirmed that the container 2 made of soft packaging material was pierced and the opening 9 was formed.

In this embodiment, the protrusion 5 is formed by the cut-out portion 12, but the same effect can be achieved by notching or using a soft material instead of allowing the unsealing member 4 to pass through.
(Example 3)
Next, Example 3 of the gas adsorption device 1 according to the second embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the material of the opening member 4 is as described in the second embodiment.

The material of the unsealing member 4 was SK steel plate.

Since the SK steel plate is harder and more brittle than the stainless steel plate, it is less deformable than the stainless steel plate and easily broken.

By using this material, the easily fracture deformable portion 11 is in a state of being easily fractured rather than being deformed.

The rupture generates vibrations such as sound waves.

Therefore, when a load is applied to the unsealing member 4 and the easily rupturable deformable portion 11 is ruptured, the generated sound waves cause the easily rupturable deformable portion to break and the gas impermeable material of the gas adsorption device 1 to break. It is possible to make it possible to confirm the formation of the opening 9 in the container 2 made of material.

Next, the gas adsorption device 1 was mounted on the vacuum heat insulating material 6 .

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The heat conductivity of the vacuum heat insulating material 6 whose inside of the outer covering material 8 made of a gas-impermeable material is decompressed is set to 3.6 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used to apply the load and the conditions for the applied load are as described in Example 1.

As a result, when the load was applied, a sound that was clearly audible was generated.

Moreover, the thermal conductivity of the vacuum heat insulating material 6 was 2.3 mW/m·K.

Furthermore, when the gas adsorption device 1 was taken out from the vacuum heat insulating material 6 and confirmed, the opening member 4 was broken at the easily breakable deformable portion 11, and the projecting portion 5 was removed from the gas impermeable soft packaging material of the gas adsorption device 1. It was confirmed that the opening 9 was formed by breaking through the container 2.

As a result, the opening member 4 is broken at the easily broken deformable portion 11, and at that time, a sound that can be clearly confirmed by hearing is generated. An opening 9 was formed, and it was confirmed that the gas adsorbent 3 absorbed the gas inside the jacket material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

As described above, by using a brittle material for the easily fracture deformable portion 11, it can be confirmed by sound waves that the opening 9 is formed in the container 2 of the gas adsorption device 1 made of the soft packaging material of the gas impermeable material.

In the present embodiment, the protrusion 5 and the breakable deformable portion 11 are formed by the cut-out portion 12, but similar effects can be achieved by notching or using a soft material instead of penetrating. (Example 4)
Next, Example 4 of the gas adsorption device 1 according to the second embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the opening member 4 is as described in the first embodiment.

The configuration of the used opening member 4 is shown in FIG.

The material of the unsealing member 4 was a stainless steel plate.

The dimensions were 30 mm square and 1 mm thick.

The opening member 4 has four projecting portions 5 by forming the cutout portion 12 in a cross shape.

The cut-out portion 12 was formed by penetrating the unsealing member 4 with a width of 0.5 mm in the thickness direction.

R of the tip of the protrusion 5 was formed to be 0.5 mm.

The easy breaking deformable portion 11 is formed by setting the width of the unsealing member 4 at both ends of the cut-out portion 12 to 1 mm on each of the stainless steel plates constituting the opening member 4 .

Although the size of the opening member 4 in the width direction is 30 mm, by narrowing the width of each of the four easy-to-break deformation portions 11 to 1 mm, when a load is applied to the opening member 4, the easy-to-break deformation portion 11 is given priority. break or deform.

The unsealing member 4 was placed inside the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas.

A method for manufacturing the gas adsorption device 1 is as described in the first embodiment.

By applying a concentrated load to a part of the unsealing member 4, the breakable deformable portion 11 of the unsealing member 4 is broken or deformed, and the projecting portion 5 of the container 2 is made of a soft packaging material of gas-impermeable material. , the protrusion 5 of the opening member 4 comes into contact with the container 2 made of a soft packaging material that is impermeable to gas, and an opening 9 is formed.

As a result, the atmosphere inside and outside the gas adsorption device 1 communicates, and the gas around the gas adsorption device 1 can be adsorbed.

By providing a plurality of protrusions 5 and arranging the easily breaking deformable portion 11 at the end of the opening member 4 as in the opening member 4, the position where the load is applied to the opening member 4 does not deviate from the opening member 4. Even if it deviates within the range, the easily rupturable deformable portion 11 is broken or deformed, the projecting portion 5 comes into contact with the container 2 of the gas adsorption device 1 made of a soft packaging material of a gas impermeable material, and an opening 9 is formed. .

Next, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The thermal conductivity of the vacuum heat insulating material 6 in which the inside of the outer covering material 8 made of a gas-impermeable material is depressurized was set to 3.3 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used to apply the load was a pressing machine with a φ5 mm urethane jig fixed.

A force of 20 kgf was applied to the unsealing member 4 from the outside of the covering member 8 made of a gas impermeable material by the press machine.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.5 mW/m·K.

Due to the above load, the thermal conductivity decreased by 0.8 mW/m·K, which means that the pressure inside the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 decreased. Further, the load is applied to the unsealing member 4 from the outside of the jacket material 8 made of a gas-impermeable material, so that the container 2 of the gas adsorption device 1 made of a soft packaging material of a gas-impermeable material is opened. 9 is produced, and the gas adsorbent 3 has absorbed the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

Compared with Example 1, the tip diameter of the jig used for applying a load to the unsealing member 4 in this example was made smaller. By arranging them at various angles on a plane horizontal to the surface of the container 2 made of a soft packaging material of gas-impermeable material, it is possible to stably unseal the container.

Further, in the present embodiment, the protrusion 5 and the easily fracture deformable portion 11 are formed by the cutout portion 12, but the same effect can be achieved by notching or using a soft material.
(Example 5)
Next, Example 5 of the gas adsorption device 1 according to the second embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the opening member 4 is as described in the first embodiment.

A schematic diagram of the used opening member 4 is shown in FIG.

The material of the unsealing member 4 was a stainless steel plate.

The dimensions of the opening member 4 were 10 mm in width, 35 mm in length, and 1 mm in thickness.

A total of three cutouts 12 were formed by penetrating the stainless steel plate forming the opening member 4 with a width of 0.5 mm in the thickness direction.

One of the cut-out portions 12 was provided substantially in the central portion of the unsealing member 4 to form the easily breakable deformable portion 11 and the projecting portion 5 .

R of the tip of the protrusion 5 was set to 0.5 mm.

The remaining two cut-out portions 12 were provided at the ends of the opening member to form easily fracture deformable portions 11 .

All of the easy-to-break deformable portions 11 are formed by cutting out portions 12 from a stainless steel plate forming the opening member 4 and setting the width of the remaining portions of the opening member 4 at both ends of the cutout portion 12 to 1 mm.

Although the width of the opening member 4 in this embodiment is 35 mm, the width of the easily breaking deformable portions 11 at the two locations is narrowed to 1 mm, so that when a load is applied to the opening member 4, the easily breaking deformable portions 11 are given priority. break or deform.

As described above, with respect to the opening member 4 of the gas adsorption device 1, by providing the cutout portion 12 and the easy breaking deformation portion 11 at the end portion of the opening member 4, the load is concentrated on a part of the opening member 4. is added, and when the opening 9 is formed in the container 2 of the gas adsorption device 1 made of a soft packaging material made of a gas-impermeable material, the easily breakable deformable portion 11 provided at the end of the unsealing member 4 is broken or deformed, The container 2 and the gas adsorption device 1 are mounted. It is possible to reduce the risk of damaging the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 .

The unsealing member 4 was placed inside the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas.

A method for manufacturing the gas adsorption device 1 is as described in the first embodiment.

Next, the gas adsorption device 1 was mounted on the vacuum heat insulating material 6 .

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The thermal conductivity of the vacuum heat insulating material 6 whose inside of the outer covering material 8 made of a gas impermeable material is decompressed is set to 3.5 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used to apply the load and the conditions for the applied load are as described in Example 1.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.4 mW/m·K.

Before and after the load was applied, the thermal conductivity decreased by 1.1 mW/m·K. Furthermore, by applying a load to the unsealing member 4 from the outside of the jacket material 8 made of the gas-impermeable material, the container 2 of the gas adsorption device 1 made of the soft packaging material of the gas-impermeable material is It means that the opening 9 is made and the gas adsorbent 3 has absorbed the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

After the above confirmation, the outer covering material 8 made of the gas impermeable material on the side of the vacuum heat insulating material 6 to which the load was applied was attached to the gas impermeable material at the end of the opening member 4 of the gas adsorption device 1. When the step generated in the outer covering material 8 made of was measured, it was 0.1 mm or less. As a comparison, when the load for forming the openings 9 was applied to the gas adsorption device 1 by the method described in Example 2, and the vacuum heat insulating material 6 was similarly measured, the step was 0.5 mm.

The fact that the difference in level is small means that the unsealing member 4 applies stress to the container 2 made of the soft packaging material of the gas-impermeable material of the gas adsorption device 1 or the outer covering material 8 of the vacuum insulation material 6 made of the material of the gas-impermeable material. In addition to preventing breakage of the container 2 made of a soft packaging material of a gas-impermeable material or the outer covering material 8 of a gas-impermeable material, the vacuum heat insulating material 6 is protected from external forces such as rubbing and compression. It also means that the outer covering material 8 made of a gas impermeable material is prevented from being destroyed by the applied stress.

For this reason, by providing the breakable deformable portion 11 at the end of the unsealing member 4, the gas adsorption device 1 and the vacuum heat insulating material 6 can be prevented from being damaged.

In this embodiment, the protrusion 5 and the easily fracture deformable portion 11 are formed by the cut-out portion 12, but the same effect can be achieved by notching or using a soft material.
(Example 6)
Next, Example 6 of the gas adsorption device 1 according to the second embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the opening member 4 is as described in the first embodiment.

A schematic diagram of the opening member 4 used is shown in FIG.

The material of the unsealing member 4 was a stainless steel plate.

The dimensions of the opening member 4 were 10 mm in width, 35 mm in length, and 1 mm in thickness.

The cut-out portion 12 was formed by penetrating the stainless steel plate forming the unsealing member 4 with a width of 0.5 mm in the thickness direction.

R of the tip of the protrusion 5 was formed to be 0.5 mm.

The easy-to-break deformable portion 11 was formed by making the stainless steel plate constituting the opening member 4 exist only with a width of 1 mm by the cut-out portion 12 .

The width of the unsealing member 4 is 35 mm, but by setting the width of only the easily rupture deformable portions 11 at two locations to 1 mm, the easily rupture deformable portions 11 are preferentially broken or deformed when a load is applied to the unsealing member 4. I made it

The cross-sectional shape of the plate-like unsealing member 4 viewed from the long side is curved.

The unsealing member 4 was placed inside the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas.

A method for manufacturing the gas adsorption device 1 is as described in the first embodiment.

Next, the gas adsorption device 1 was mounted on the vacuum heat insulating material 6 .

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The thermal conductivity of the vacuum heat insulating material 6, which is obtained by decompressing the inside of the outer covering material 8 made of a gas-impermeable material, is set to 3.8 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used for applying the load and the conditions regarding the applied load were as described in Example 1, but the load was applied from the convex side of the curved opening member 4 .

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.6 mW/m·K.

Before and after the load was applied, the thermal conductivity decreased by 1.2 mW/m·K. Furthermore, by applying a load to the unsealing member 4 from the outside of the jacket material 8 made of the gas-impermeable material, the container 2 of the gas adsorption device 1 made of the soft packaging material of the gas-impermeable material is It can be said that the opening 9 was made and the gas adsorbent 3 absorbed the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

After the above confirmation, the outer covering material 8 made of the gas impermeable material on the side of the vacuum heat insulating material 6 to which the load was applied was attached to the gas impermeable material at the end of the opening member 4 of the gas adsorption device 1. When the step generated in the outer covering material 8 made of was measured, it was 0.1 mm or less. As a comparison, when the vacuum heat insulating material 6 after applying the load by the method described in Example 2 was measured in the same manner, the step was 0.5 mm.

The fact that the difference in level is small means that the unsealing member 4 applies stress to the container 2 made of the soft packaging material of the gas-impermeable material of the gas adsorption device 1 or the outer covering material 8 of the vacuum insulation material 6 made of the material of the gas-impermeable material. In addition to preventing breakage of the container 2 made of a soft packaging material of a gas-impermeable material or the outer covering material 8 of a gas-impermeable material, the vacuum heat insulating material 6 is protected from external forces such as rubbing and compression. It also prevents the outer covering material 8 made of gas impermeable material from being destroyed by the stress applied.

Therefore, by forming the unsealing member 4 into a curved shape, the gas adsorption device 1 and the vacuum heat insulating material 6 can be prevented from being damaged.

In this embodiment, the cross-sectional shape of the unsealing member 4 is curved when viewed from the long side. Moreover, the same effect can be achieved even if the shape is bent at the end instead of the curved shape.

Further, in the present embodiment, the protrusion 5 and the easily fracture deformable portion 11 are formed by the cut-out portion 12, but similar effects can be achieved by notching or using a soft material.
(Third Embodiment)
FIG. 7 is a schematic diagram of a gas adsorbent according to a third embodiment of the invention.

Although the configuration is the same as that of the first embodiment, the opening member 4 is attached to the outside of the container 2 of the gas adsorption device 1, which is made of a soft packaging material made of a gas-impermeable material, with an adhesive.

By attaching it to the outside, the workability in manufacturing the gas adsorption device 1 can be improved.

When a load is applied to the unsealing member 4, it is possible to form an opening 9 in the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas, as in the first embodiment.

Although the unsealing member 4 is rod-shaped, it may have another shape, for example, the shape shown in the second embodiment.

After inserting the gas adsorption device 1 into the vacuum insulation material, a load was applied to the opening member 4 to form the opening 9 .

The structure of the vacuum heat insulating material, the method of inserting it, and the method of applying the load are as described in the first embodiment.
(Example 7)
Next, Example 7 of the gas adsorption device 1 according to the third embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

First, the used gas adsorption device 1 will be described.

The structure of the gas adsorption device 1 except for the opening member 4 is as described in the first embodiment.

The material and shape of the opening member 4 were as described in Example 1.

However, the position of the unsealing member 4 was adhered to the outside of the container 2 of the gas adsorption device 1 made of a soft packaging material made of a gas-impermeable material with a urethane-based adhesive.

Next, the gas adsorption device 1 was mounted on the vacuum heat insulating material 6 .

The structure and manufacturing method of the vacuum heat insulating material 6 are as described in the first embodiment.

The thermal conductivity of the vacuum heat insulating material 6 whose inside of the outer covering material 8 made of a gas-impermeable material is decompressed is set to 4.0 mW/m·K.

After that, the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted is concentrated on a part of the opening member 4 of the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas impermeable material of the vacuum heat insulating material 6. was loaded.

The equipment used to apply the load and the conditions for the applied load are as described in Example 1.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 3.3 mW/m·K.

Before and after the load was applied, the thermal conductivity decreased by 0.7 mW/m·K. Furthermore, by applying a load to the unsealing member 4 from the outside of the jacket material 8 made of the gas-impermeable material, the container 2 of the gas adsorption device 1 made of the soft packaging material of the gas-impermeable material is It can be said that the opening 9 was made and the gas adsorbent 3 absorbed the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

In this embodiment, the unsealing member 4 has a cylindrical structure made of metal, but the shape is not limited to this. good.
(Fourth embodiment)
When the gas adsorption device 1 described in the first embodiment of the present invention is used to form the vacuum heat insulating material 6, the gas adsorption device 1 is composed of the core material 7 and the outer covering material 8 made of a gas impermeable material. inserted in between.

Conventionally, the device inserted into the vacuum insulation material 6 together with the core material 7 including the gas adsorption device 1 is arranged inside the core material 7 from the viewpoint of protecting the outer covering material 8 made of a gas impermeable material. was the mainstream.

Since the gas adsorption device 1 including the unsealing member 4 of the present invention is thin and the unsealing member 4 is arranged inside the device, even if it is placed in contact with the outer covering material 8 made of a gas-impermeable material, it will not be gas-resistant. The covering material 8 made of a permeable material is not damaged.

This means that the gas adsorption device 1 can be easily inserted into the outer covering material 8 of the vacuum heat insulating material 6 made of a gas impermeable material.

Furthermore, the gas adsorption device 1 can be easily visually recognized from the outside of the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6 .

This facilitates both the fabrication of the vacuum insulation 6 and the creation of the opening 9 by the opening member 4 .
(Example 8)
Next, Example 8 of the gas adsorption device 1 according to the fourth embodiment and the vacuum heat insulating material 6 on which the gas adsorption device 1 is mounted will be described.

The gas adsorption device 1 used is as described in Example 1.

The unsealing member 4 was placed inside the container 2 of the gas adsorption device 1, which is made of a soft packaging material that is impermeable to gas.

The method of manufacturing the gas adsorption device 1 was as described in Example 1, but the gas adsorption device 1 was arranged between the core material 7 and the jacket material 8 made of a gas impermeable material.

The thermal conductivity of the vacuum heat insulating material 6 whose inside of the outer covering material 8 made of a gas impermeable material is decompressed is set to 3.5 mW/m·K.

The difference in level between the unsealing member 4 and the other parts was measured to be 0.5 mm.

As a comparison, when the vacuum heat insulating material 6 to which the load was applied by the method described in Example 2 was measured in the same manner, the step was 0.3 mm.

From this fact, since the device of the present invention can be arranged in the vicinity of the outer covering material 8 made of the gas-impermeable material of the vacuum heat insulating material 6, the gas adsorption from the outside of the outer covering material 8 made of the gas-impermeable material. The visibility of the opening member of the device 1 can be further improved.

After the above confirmation, the vacuum heat insulating material 6 mounted with the gas adsorption device 1 described in the present embodiment is coated with the gas adsorption device 1 from the outside of the outer covering material 8 made of a gas-impermeable material of the vacuum heat insulating material 6. A concentrated load was applied to a part of the opening member 4 .

The equipment used to apply the load and the conditions for the applied load are as described in Example 1.

As a result, the thermal conductivity of the vacuum heat insulating material 6 was 2.7 mW/m·K.

Before and after the load was applied, the thermal conductivity decreased by 0.8 mW/m·K. Furthermore, by applying a load to the unsealing member 4 from the outside of the jacket material 8 made of the gas-impermeable material, the container 2 of the gas adsorption device 1 made of the soft packaging material of the gas-impermeable material is It means that the opening 9 is made and the gas adsorbent 3 has absorbed the gas inside the outer covering material 8 made of the gas impermeable material of the vacuum heat insulating material 6 .

In this embodiment, the gas adsorption device 1 is placed between the core material 7 and the jacket material 8 made of a gas-impermeable material. The same effect can be obtained by arranging them.

In this embodiment, the unsealing member 4 has a cylindrical structure made of metal, but the shape is not limited to this. good.

As described above, the gas adsorption device according to the present invention can greatly reduce the possibility that the protrusions of the unsealing member are unintentionally opened at atmospheric pressure or during the molding of the vacuum insulation material. There is no possibility that the unsealing member will come off during production or the position of the unsealing member will change, and the risk that the unsealing member of the gas adsorption device will damage the outer covering material can be greatly reduced.

Furthermore, the gas adsorption device itself can be made thinner, and the smoothness of the vacuum heat insulating material and the breakage risk of the outer covering material of the vacuum heat insulating material can be reduced.

Thereby, it is possible to realize a vacuum heat insulating material having excellent heat insulating performance and excellent durability over time. This vacuum insulation material not only reduces heat loss in heat and cold insulation equipment such as refrigerators, freezers, and vending machines, but also reduces energy consumption such as electricity and gas in houses.

REFERENCE SIGNS LIST 1 gas adsorption device 2 container made of soft packaging material of gas-impermeable material 3 gas adsorbent 4 unsealing member 5 projection 6 vacuum insulation material 7 core material 8 outer covering material of gas-impermeable material 9 opening 10 recess 11 Easily fractured deformable portion 12 Cutout portion

Claims (8)

A gas adsorption device comprising: a container made of at least a soft packaging material of gas-impermeable material; a gas adsorbent; A gas adsorption device, characterized in that it has a projection for opening a container, the unsealing member is inside the container, and the projection is arranged in a horizontal direction with respect to the opening surface. . The unsealing member has a projecting portion arranged inside the outer surface of the unsealing member, and has an easily breakable deformable portion that breaks or deforms when a load is applied. 2. The gas adsorption device according to claim 1, wherein the projection is located at a position where the protrusion protrudes outward from the outer surface of the unsealing member when it is broken or deformed at the portion. 3. The gas adsorption device according to claim 2, wherein the breakable portion is made of a brittle material. The unsealing member has projections arranged inside the outer surface of the unsealing member, and has at least two breakable deformation portions that break or deform when a load is applied. 4. The gas adsorption device according to any one of claims 1 to 3, wherein the projecting portion is located at a position where it projects outward from the outer surface of the unsealing member when it is broken or deformed at the easily breakable and deformable portion. 4. The gas adsorption device according to claim 1, wherein the opening member is curved in a direction perpendicular to the container made of soft packaging material. A gas adsorption device comprising: a container made of at least a soft packaging material of gas-impermeable material; a gas adsorbent; A gas adsorption device, characterized in that it has a protrusion that sometimes opens a container, the unsealing member is on the outside of the container, and the protrusion is arranged in a horizontal direction with respect to the opening surface. . A vacuum heat insulating material having therein the gas adsorption device according to any one of claims 1 to 6. 8. The vacuum heat insulating material according to claim 7, wherein the outer covering material of the vacuum heat insulating material is formed with a step due to the unsealing member.

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