Cooling agent package

Abstract

According to various embodiments, a cooling agent package is disclosed. A cooling agent package according to an embodiment of the present invention may include a first case in which a first refrigerant is charged, and a second case inserted into the first case and accommodating a second refrigerant therein.

Description

Cooling material package

[0001] The present invention relates to a cooling agent package. The present invention is a result carried out with support from the 'Eco-Startup Support Program' promoted by the Ministry of Environment and operated by the Korea Environmental Industry & Technology Institute (Project No.: RT2025020396).

[0002] In the case of conventional cold chain packaging, cooling agents such as refrigerants (e.g., dry ice, PCM, ice packs, ice, etc.) are utilized to compensate for insufficient insulation performance and temperature retention time.

[0003] In the case of dry ice, while its freezing / cooling performance is excellent, it sublimes rapidly, resulting in a short duration for maintaining the item's temperature at the target level. Additionally, because dry ice lowers the temperature excessively below the target, the temperature difference with the outside increases, leading to a higher value for heat flow (or the amount of heat exchanged). This increase in heat flow can lead to a decrease in cooling efficiency.

[0004] Since dry ice sublimes above its melting point, the rate of volume expansion due to sublimation is significant. In the case of sealed packaging, the use of dry ice poses a risk of explosion due to volume expansion; therefore, the packaging must allow for fluid flow between the exterior and interior. However, fluid flow may reduce the cooling performance of the packaging.

[0005] The background technology described above is possessed or acquired by the inventor in the process of deriving the content of the disclosure of the present application, and cannot necessarily be considered as prior art disclosed to the general public prior to the filing of this application.

[0006] According to various embodiments, a cooling agent package can be provided that can extend the time of maintaining the temperature inside the package at a target temperature.

[0007] According to various embodiments, a cooling agent package capable of improving thermal insulation performance by preventing supercooling can be provided.

[0008] However, technical challenges are not limited to the technical challenges described above, and other technical challenges may exist.

[0009] A cooling agent package according to various embodiments may include a first case in which a first refrigerant is filled, and a second case inserted into the first case and having a second refrigerant contained therein.

[0010] The first case comprises a first member having an opening formed on one side and a part of the second case inserted therein, and a second member having the remainder of the second case inserted therein and coupled with the first member, and the cooling agent package may further include a case cover coupled to the opening.

[0011] The above-described coolant package may further include a vent formed on one side of the first case, through which fluid can flow between the internal space of the second case and the outside of the coolant package.

[0012] The first refrigerant may include a substance having a phase change temperature higher than the phase change temperature of the second refrigerant.

[0013] The above-described cooling agent package may further include an insulating material inserted between the first case and the second case, or attached to the outside of the first case.

[0014] A cooling agent package according to various embodiments may include a first case formed of a pair of insulating sheets and filled with a first refrigerant in an internal space formed by the insulating sheets, and a second case inserted inside the first case and contained with a second refrigerant.

[0015] The first case above can be formed by fusing the pair of insulation sheets along a plurality of first adhesive lines and a plurality of second adhesive lines, and then fusing one end and the other end.

[0016] When the first case is filled with the first refrigerant, a plurality of shells are formed along the plurality of first adhesive lines, and the shape of the first case can be formed along the plurality of second adhesive lines.

[0017] The above-described coolant package may further include a sealing means that seals the first case, wherein a fluid passage is formed that allows fluid flow between the internal space of the second case and the outside of the coolant package.

[0018] A cooling agent package according to various embodiments comprises a first insulating sheet including a first internal space and a first opening formed on one side, and a second insulating sheet including a second internal space and a second opening formed on one side, wherein at least a portion thereof is inserted into the first internal space of the first insulating sheet, and wherein the first insulating sheet can have the first opening sealed when at least a portion thereof is inserted into the first internal space.

[0019] The first internal space is filled with a first refrigerant through the inlet of the first insulation sheet, and the second opening can be sealed after the second refrigerant is positioned in the second internal space.

[0020] The first insulating sheet comprises a first layer that can be heat-fused to at least a portion of its inner surface, and the second insulating sheet comprises a second layer that can be heat-fused to at least a portion of its outer surface, and the first opening can be sealed by fusing one side of the first layer with the other side of the first layer, and fusing both the one side and the other side of the first layer with the second layer.

[0021] The first insulation sheet can be heat-fused along a first fusion line formed along the first opening and a second fusion line formed spaced apart from the first fusion line.

[0022] The first insulation sheet and the second insulation sheet may include a gas permeable hole between the first fusion line and the second fusion line.

[0023] A cooling agent package according to various embodiments may include a first fusion line and a second fusion line formed spaced apart from the first fusion line, an opening and closing device including a through hole, a first pouch with one side opened along the first fusion line and fused, a second pouch with one side opened along the second fusion line and fused, and a cover coupled with the opening and closing device to seal the interior of the first pouch connected to the through hole.

[0024] The first pouch can be sealed inside by the cover being coupled with the opening / closing device after the first refrigerant is injected through the through hole, and the second pouch can be sealed inside by the open side being fused after the second refrigerant is injected through the other side of the second pouch.

[0025] The above cover may include a sealing material that allows gas inside the first pouch to flow with the outside.

[0026] A cooling agent package according to various embodiments may include a container comprising an opening / closing device—the opening / closing device comprising a through hole—a pouch having one side that is open and fused along a fusion line formed on the outer surface of the opening / closing device, and a cover that seals the interior of the container connected to the through hole by being coupled with the opening / closing device.

[0027] The above container can be sealed inside by combining the lid with the opening / closing device after the first refrigerant is injected into the interior through the through hole, and the pouch can be sealed inside by fusing the open other side after the second refrigerant is injected through the open other side of the pouch.

[0028] The above container may include at least one protrusion on its surface.

[0029] A cooling agent package according to one embodiment of the present invention can prevent supercooling to improve thermal insulation performance and increase the time for maintaining the temperature inside the package at a target temperature.

[0030] FIG. 1 is a drawing showing a cooling agent package according to various embodiments.

[0031] FIG. 2 is a diagram showing an exploded view of a cooling agent package according to various embodiments.

[0032] FIG. 3 is a cross-sectional view of a cooling agent package according to various embodiments.

[0033] FIGS. 4 and FIGS. 5 are drawings showing a cooling agent package according to various embodiments.

[0034] FIG. 6 is a cross-sectional view of a cooling agent package according to various embodiments.

[0035] FIG. 7 is a diagram showing an exploded view of a cooling agent package according to various embodiments.

[0036] FIG. 8 is a diagram showing the rotation axis of a cooling agent package according to various embodiments.

[0037] FIG. 9 is a diagram showing the cooling performance of a cooling agent package according to various embodiments.

[0038] FIG. 10 is a drawing showing a cooling agent package according to various embodiments.

[0039] FIGS. 11 and 12 are drawings showing a first insulation sheet and a second insulation sheet of a coolant package according to various embodiments.

[0040] FIG. 13 is a drawing showing the openings of the first insulation sheet and the second insulation sheet according to various embodiments.

[0041] FIG. 14 is a drawing showing the openings of the first insulation sheet and the second insulation sheet after fusion according to various embodiments.

[0042] FIG. 15 is a drawing showing a cooling agent package according to various embodiments.

[0043] FIG. 16 is a drawing showing the upper side and cross-section of an opening and closing device according to various embodiments.

[0044] FIG. 17 is a drawing showing the upper side and cross-section of a first pouch and an opening / closing device according to various embodiments.

[0045] FIGS. 18 and 19 are drawings showing the upper side and cross-section of an opening / closing device, a first pouch, and a second pouch according to various embodiments.

[0046] FIG. 20 is a drawing showing the upper side and cross-section of an opening and closing device, a first pouch, a second pouch, and a cover according to various embodiments.

[0047] FIG. 21 is a drawing showing the upper side and cross-section of a container according to various embodiments.

[0048] FIG. 22 is a drawing showing the upper side and cross-section of a container and pouch according to various embodiments.

[0049] FIG. 23 is a drawing showing the upper side and cross-section of a container including a protrusion according to various embodiments.

[0050] FIGS. 24 and 25 are drawings showing the upper side and cross-section of a container and a pouch including a protrusion according to various embodiments.

[0051] FIG. 26 is a drawing showing the upper side and cross-section of a container, pouch, and lid including a protrusion according to various embodiments.

[0052] FIG. 27 is a drawing showing an example of the exterior and interior cross-section of a cooling agent package shown in FIG. 26.

[0053] FIG. 28 is a cross-sectional view of a cooling agent package according to various embodiments.

[0054] Hereinafter, embodiments are described in detail with reference to the attached drawings. However, various modifications may be made to the embodiments, and thus the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, and substitutions to the embodiments are included within the scope of the rights.

[0055] The terms used in the embodiments are for illustrative purposes only and should not be interpreted as intended to be limiting. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0056]

[0057] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the embodiments pertain. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0058] In addition, when describing with reference to the attached drawings, identical components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. In describing the embodiments, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the embodiments, such detailed description is omitted.

[0059]

[0060] FIG. 1 is a drawing showing a coolant package (100) according to various embodiments. FIG. 2 is a drawing showing an exploded view of a coolant package (100) according to various embodiments.

[0061] Referring to FIGS. 1 and 2, a cooling agent package (100) according to various embodiments may include a first case and a second case (140).

[0062] For example, a first refrigerant may be filled inside the first case. For example, the first case may include a first member (110), a second member (120), and a case cover (130). The first case may be formed by combining the first member (110) and the second member (120).

[0063] For example, the first member (110) may have an opening formed on one side and a part of the second case (140) may be inserted inside. The second member (120) may have the remainder of the second case (140) inserted into it and may be combined with the first member (110).

[0064] A first refrigerant may be filled inside the first case (or inside the first member (110) and / or the second member (120)). For example, the first member (110) and / or the second member (120) may include an inlet for filling the first refrigerant.

[0065] A second refrigerant may be contained inside the second case (140). After the second refrigerant is inserted into the second case (140), a case cover (130) may be attached to the first member (110). The case cover (130) may be attached to the first member (110) to block the second case (140) from the outside.

[0066] In FIGS. 1 and 2, an embodiment is illustrated in which the coolant package (100) includes a first case and a second case (140), but is not limited thereto. For example, the coolant package (100) may include only a first case that includes a receiving space and is filled with a first refrigerant. A second refrigerant may be received in the receiving space of the first case.

[0067]

[0068] FIG. 3 is a cross-sectional view of a cooling agent package (100) according to various embodiments.

[0069] Referring to FIG. 3, the coolant package (100) may include a vent (150). For example, the vent (150) may be formed on one side of the first case (or the second member (120)). The vent (150) may allow fluid to flow between the internal space of the second case (140) and the outside of the coolant package (100).

[0070] For example, the vent (150) may include a material (e.g., Gore-Tex, membrane, etc.) that blocks heat exchange between the internal space of the second case (140) and the outside of the coolant package (100) while allowing fluid flow.

[0071] For example, the first refrigerant may include a substance having a phase change temperature higher than the phase change temperature of the second refrigerant. For example, if the phase change temperature of the second refrigerant is a second temperature, the phase change temperature of the first refrigerant may be a first temperature higher than the second temperature.

[0072] For example, the capacity and / or volume of the first refrigerant may be proportional to the capacity and / or volume of the second refrigerant. For example, the capacity and / or volume of the first refrigerant may be at least twice the capacity and / or volume of the second refrigerant.

[0073] For example, the capacity and / or volume of the first refrigerant may be determined according to the heat quantity (or heat capacity) of the first refrigerant, the phase change temperature of the first refrigerant, the heat quantity (or heat capacity) of the second refrigerant, the phase change temperature of the second refrigerant, and the capacity and / or volume of the second refrigerant.

[0074] The smaller the heat content (or heat capacity) of the first refrigerant, the larger the capacity and / or volume of the first refrigerant can be determined.

[0075] The higher the phase change temperature of the first refrigerant, the larger the capacity and / or volume of the first refrigerant can be determined.

[0076] The higher the heat content (or heat capacity) of the second refrigerant, the larger the capacity and / or volume of the first refrigerant can be determined.

[0077] The lower the phase change temperature of the second refrigerant, the larger the capacity and / or volume of the first refrigerant can be determined.

[0078] The larger the capacity and / or volume of the second refrigerant, the larger the capacity and / or volume of the first refrigerant can be determined.

[0079] For example, the ratio of the volume of the first refrigerant to the volume of the second refrigerant may be inversely proportional to the ratio of the heat content of the first refrigerant and the second refrigerant. For example, if the ratio of the heat content of the first refrigerant to the second refrigerant is 1:2, the ratio of the volumes of the first refrigerant to the second refrigerant may be 2:1.

[0080] As described above, since the first refrigerant and the second refrigerant have different melting points (or phase change temperatures), the capacity (or volume) of the first refrigerant can be determined by the optimal volume ratio depending on the type of the first refrigerant, the type of the second refrigerant, the volume of the second refrigerant, etc.

[0081] For example, the first case (or the first member (110), the second member (120)) may be formed with a determined thickness (e.g., 30 mm). For example, the thickness of the first case may mean the length from the second case to the outside of the coolant package (100).

[0082] The first refrigerant is located between the second refrigerant and the outside of the cooling agent package (100), and can be understood as having thermal insulation properties that prevent the second refrigerant from directly cooling the outside of the cooling agent package (100), or as acting as an insulating material. By maintaining the thickness of the first case at a constant, determined thickness, the thermal insulation properties of the second refrigerant according to the first refrigerant (or first case) can be increased.

[0083] For example, the thickness of the first case may be determined to be a thickness that appropriately maintains the temperature of the external space of the coolant package (100) while maintaining thermal insulation for the second refrigerant. For example, the thickness of the first case may be determined based on at least one of the capacity (or volume) of the first refrigerant, the phase change temperature of the first refrigerant, the capacity (or volume) of the second refrigerant, the phase change temperature of the second refrigerant, the material (thermal conductivity) of the first case, the target temperature, the volume inside the package, and the external area of ​​the first case, or a combination thereof.

[0084] When a second refrigerant is directly placed inside the package, the goods or space inside the package can be cooled to a second temperature. When the temperature inside the package is cooled to a second temperature, the cooling efficiency may decrease because the temperature difference with the outside of the package increases.

[0085] When a cooling agent package (100) is placed inside a package, the first refrigerant in the first case can be cooled by the second refrigerant contained inside the second case (140). The first refrigerant in the first case can cool the item or space inside the package. Since the phase change temperature of the first refrigerant is a first temperature higher than the second temperature, when the space inside the package is cooled by the first refrigerant, the temperature difference between the inside of the package and the outside of the package is reduced, and the cooling efficiency can be increased.

[0086] According to one embodiment, the cooling agent package (100) may include an insulating material. For example, the insulating material may be inserted between the first case and the second case (140) or attached to the outside of the first case.

[0087] For example, the insulating material may include, but is not limited to, EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), PIR (Polyisocyanurate), LCP (liquid crystal polymer), nanocomposite plastics, etc.

[0088] The insulating material can suppress heat exchange between the first case (or first refrigerant) and the second case (140) (or second refrigerant). The insulating material can suppress the second refrigerant from absorbing heat from the first refrigerant. By suppressing the temperature rise of the second refrigerant, the insulating material can extend the temperature maintenance time within the packaging through the second refrigerant.

[0089] When the insulating material is attached to the outer surface of the first case, it can suppress heat exchange between the first refrigerant and the article or space inside the package. By suppressing the temperature rise of the first refrigerant, the insulating material can extend the temperature maintenance time inside the package through the second refrigerant.

[0090] In FIGS. 1 to 3, the first case and / or second case (140) is illustrated as being in the shape of a square box, but is not limited thereto. For example, the first case and / or second case (140) may be formed in various shapes such as a sphere, a cylinder, a hexagonal column, etc.

[0091] In FIGS. 1 to 3 above, a case is illustrated in which a first refrigerant is located inside a first case and a second refrigerant is contained inside a second case (140), but this is not limited thereto. For example, the refrigerant package (100) may include three or more cases. The refrigerant filled inside each case or the refrigerant contained in the receiving space may have a phase change temperature that increases from the inside to the outside of the refrigerant package.

[0092] For example, a refrigerant package may comprise N cases, starting from the outermost case, the first case, second case, third case, ..., the Nth case, and the refrigerant filled inside the first case may be called the first refrigerant, the refrigerant filled in the second case may be called the second refrigerant, ..., and the refrigerant located in the receiving space of the Nth case may be called the Nth refrigerant. In this example, (phase change temperature (or melting point) of the first refrigerant) > (phase change temperature (or melting point) of the second refrigerant) > ... > (phase change temperature (or melting point) of the Nth refrigerant.

[0093]

[0094] FIGS. 4 and FIGS. 5 are drawings showing a coolant package (200) according to various embodiments. FIG. 6 is a cross-sectional view of a coolant package (200) according to various embodiments.

[0095] Referring to FIGS. 4, 5 and 6, a cooling agent package (200) according to various embodiments may include a first case (210) and a second case (220).

[0096] For example, the first case (210) may be formed from a pair of insulating sheets. The first case (210) may be filled with a first refrigerant in the internal space formed by the insulating sheets. The first case (210) may include an inlet for injecting the first refrigerant.

[0097] For example, the insulation sheet may include, but is not limited to, EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), PIR (Polyisocyanurate), LCP (liquid crystal polymer), nanocomposite plastics, etc.

[0098] As shown in FIGS. 4, 5 and 6, the first case (210) may include a plurality of shells. A pair of insulating sheets may be fused along a first adhesive line (211). When a first refrigerant is filled inside the first case (210) fused along the first adhesive line (211), the first case (210) may expand into a plurality of shells.

[0099] For example, a pair of insulation sheets can be fused along the second adhesive line (213). When the first refrigerant is filled inside the first case (210) fused along the second adhesive line (213), the first case (210) can form a square box shape with the top and bottom sides open. By sealing the top and bottom sides of the first case (210) in the shape of a square box with the top and bottom sides open, a cooling agent package (200) such as that shown in FIGS. 4, 5, and 6 can be formed.

[0100] For example, the second case (220) is inserted inside the first case (210), and the second refrigerant can be contained inside.

[0101]

[0102] FIG. 7 is a diagram showing an exploded view of a cooling agent package (200) according to various embodiments.

[0103] Referring to FIG. 7, a pair of insulation sheets can be fused along a first adhesive line (211) and a second adhesive line (213). In FIG. 7, a dotted line shown on a pair of insulation sheets may represent the first adhesive line (211), and a solid line may represent the second adhesive line (213). A pair of insulation sheets can be fused along the first adhesive line (211) and the second adhesive line (213).

[0104] As shown in FIG. 7, the second adhesive line (213) may be located between the first adhesive lines (211). The second adhesive line (213) may not come into contact with the first adhesive line (211). Since the second adhesive line (213) does not come into contact with the first adhesive line (211), when the first refrigerant is filled into the inlet, the first refrigerant can be filled into the entire interior of the first case (210) (or a pair of insulation sheets).

[0105] For example, the first case (210) (or a pair of insulating sheets) can be formed by fusing along a plurality of first adhesive lines (211) and a plurality of second adhesive lines (213), and then fusing one end and the other end.

[0106] When a first refrigerant is injected into the first case (210) (or a pair of insulating sheets), a plurality of shells may be formed along the first adhesive line (211).

[0107] When the first refrigerant is injected into the first case (210) (or a pair of insulating sheets), the first case (210) may be in the shape of a square box with the top and bottom sides open.

[0108] For example, after fusing both ends of a pair of insulating sheets (e.g., the left and right sides in FIG. 7), a first refrigerant may be injected into the first case (210) (or the pair of insulating sheets). When the first refrigerant is injected into the first case (210) (or the pair of insulating sheets), it may take the form of a square box with the top and bottom sides open.

[0109] For example, the open upper and lower sides of the first case (210) may be sealed by a sealing means. The sealing means may include a fluid passage capable of fluid flow between the internal space of the second case (220) and the outside of the coolant package (200). For example, the sealing means may include a tape having micropores or a tape including a membrane through which only gas can pass.

[0110] FIG. 8 is a drawing showing the rotation axis of a cooling agent package (200) according to various embodiments.

[0111] FIG. 8 is a diagram showing the operation of the second adhesive line (213) of FIG. 7 rotating along the axis of rotation when the first refrigerant is injected into the first case (210).

[0112] For example, the first state (210-1) represents the state before the first refrigerant is injected into the first case (210). When the first refrigerant is injected into the first case (210), the shells on both sides separated by the second adhesive line (213) expand and take on a curved shape as in the second state (210-2). When the injection of the first refrigerant into the first case (210) is completed, the shells on both sides separated by the second adhesive line (213) can form a right angle as in the third state (210-3).

[0113] As shown in FIG. 8, the first case (210) or a pair of insulation sheets can be filled with a first refrigerant through a single inlet, in the form of a pouch in which a fluid is filled.

[0114] As shown in FIG. 8, the first case (210) or a pair of insulation sheets can be opened and closed by rotating on a single fixed axis (e.g., a part attached by the second adhesive line (213)). In the pair of insulation sheets, the part attached by the second adhesive line (213) can be easily opened and closed because it is not filled with the first refrigerant.

[0115] The cooling agent package (200) illustrated in FIGS. 4 to 8, similar to the cooling agent package (100) illustrated in FIGS. 1 to 3, can cool the goods or space within the packaging box through the first cooling agent cooled by the second cooling agent, rather than the second cooling agent directly cooling the goods or space within the packaging box.

[0116] The cooling agent package (200) illustrated in FIGS. 4 to 8 can improve cooling efficiency by cooling an item or space inside a packaging box through a first refrigerant cooled by a second refrigerant. Additionally, by using the cooling agent package (200), the time for maintaining the temperature of an item or space inside a packaging box below a target temperature can be extended.

[0117]

[0118] FIG. 9 is a diagram showing the cooling performance of a coolant package (100) according to various embodiments. The thick solid line of the graph (800) shown in FIG. 9 indicates the temperature change inside the packaging box when the second refrigerant is contained inside the second case of the coolant package (100) shown in FIG. 1 to 3. The thin solid line of the graph (800) shown in FIG. 9 indicates the temperature change inside the packaging box when the second refrigerant is placed inside the packaging box. The second refrigerant is dry ice, and the weight of the second refrigerant contained inside the coolant package (100) is 0.5 kg, and the weight of the second refrigerant placed inside the packaging box is 0.8 kg.

[0119] In FIG. 9, when the second refrigerant is located inside the cooling agent package (100) (or inside the second case), the temperature inside the packaging box becomes above the target temperature (e.g., 0 degrees) after about 19 hours and 40 minutes.

[0120] In Fig. 9, when the second refrigerant is directly injected into the packaging box, the temperature inside the packaging box becomes above the target temperature (e.g., 0 degrees) after about 12 hours and 50 minutes.

[0121] As shown in Fig. 9, when using a cooling agent package (100), even if less second refrigerant is used, the temperature inside the packaging box can be maintained below the target temperature for a longer period of time than when the second refrigerant is directly injected into the packaging box.

[0122]

[0123] FIG. 10 is a drawing showing a cooling agent package (300) according to various embodiments.

[0124] Referring to FIG. 10, a cooling agent package (300) according to various embodiments may include a first insulation sheet and a second insulation sheet. In FIG. 10, a first refrigerant may be filled in the first internal space of the first insulation sheet. A second refrigerant (400) may be located in the second internal space of the second insulation sheet.

[0125] In FIG. 10, the cooling agent package (301) shows a state in which the second opening of the second insulation sheet is sealed after the second refrigerant (400) is inserted into the second internal space.

[0126] Similar to the coolant packages (100, 200) of FIGS. 1 to 9, the coolant package (300) of FIG. 10 can improve cooling efficiency or extend cooling time. For example, the coolant package (300) can be inserted into a package. The phase change temperature of the first refrigerant of the coolant package (300) may be higher than the phase change temperature of the second refrigerant. The first refrigerant may be cooled by the second refrigerant.

[0127] Since the difference between the temperature inside the package and the phase change temperature of the first refrigerant is smaller than the difference between the temperature inside the package and the phase change temperature of the second refrigerant, excessive cooling inside the package can be prevented. By preventing excessive cooling inside the package, heat loss caused by the temperature difference between the inside and outside of the package can be prevented.

[0128] The second refrigerant can cool the first refrigerant without directly cooling the inside of the packaging. Since the second refrigerant cools the first refrigerant, the time the second refrigerant can maintain a low temperature can be longer than when it cools the inside of the packaging. When the second refrigerant directly cools the inside of the packaging, the time the second refrigerant maintains a low temperature may be shortened due to the large temperature difference between the second refrigerant and the inside of the packaging.

[0129] The graph regarding the cooling performance of the coolant package (100) shown in FIG. 9 describes, but is not limited to, the cooling performance of the coolant package (100) shown in FIG. 1 to 3. For example, the cooling performance of the coolant package (200) shown in FIG. 4 to 8 or the coolant package (300) shown in FIG. 10 to 14 may also be substantially the same or similar to the cooling performance graph shown in FIG. 9.

[0130]

[0131] FIGS. 11 and 12 are drawings showing a first insulation sheet (310) and a second insulation sheet (320) of a cooling agent package (300) according to various embodiments.

[0132] FIG. 11 shows a cooling agent package (300) in which the first opening of the first insulation sheet (310) and the second opening of the second insulation sheet (320) are aligned. In FIG. 11, the entire second insulation sheet (320) can be inserted into the first internal space of the first insulation sheet (310).

[0133] FIG. 12 shows a cooling agent package (300) in which a portion of the second insulation sheet (320) is inserted into the first internal space of the first insulation sheet (310). As shown in FIG. 12, a portion of the second insulation sheet (320) can be inserted into the first internal space.

[0134] Hereinafter, for convenience of explanation, an example of a coolant package (300) in which the entire second insulation sheet (320) is inserted into the first internal space as in FIG. 11 will be described. Hereinafter, the description of the coolant package (300) of FIG. 11 can be applied substantially the same way to the coolant package (300) of FIG. 12.

[0135] Referring to FIGS. 11 and 12, a cooling agent package (300) according to various embodiments may include a first insulation sheet (310) and a second insulation sheet (320).

[0136] For example, the first insulation sheet (310) may include a first internal space (311, 313) and a first opening (317) formed on one side.

[0137] For example, the second insulation sheet (320) may include a second internal space and a second opening (323) formed on one side. For example, at least a portion of the second insulation sheet (320) may be inserted into the first internal space (311, 313) of the first insulation sheet (310). For example, as shown in FIG. 11, the entire second insulation sheet (320) may be inserted into the first internal space (311, 313), or as shown in FIG. 12, a portion of the second insulation sheet (320) may be inserted into the first internal space (311, 313).

[0138] For example, the first insulation sheet (310) can have the first opening (317) sealed when at least a portion of the second insulation sheet (320) is inserted into the first internal space (311, 313).

[0139] For example, the first insulation sheet (310) may include a first layer that can be heat-fused to at least a portion of the inner surface. For example, the second insulation sheet (320) may include a second layer that can be heat-fused to at least a portion of the outer surface. The first insulation sheet (310) and / or the second insulation sheet (320) may each include a plurality of layers. For example, the first insulation sheet (310) and / or the second insulation sheet (320) may each include a plurality of layers to minimize or reduce heat exchange between internal spaces.

[0140] For example, in FIG. 11, a first layer may be formed on the inner surface of the first insulation sheet (310) along the first fusion line (A). In FIG. 11, a second layer may be formed on the outer surface of the second insulation sheet (320) along the first fusion line (A).

[0141] For example, the first opening (317) can be sealed by fusing one side of the first layer with the other side of the first layer, and fusing one side and the other side of the first layer with the second layer.

[0142] For example, the first opening (317) of the first insulation sheet (310) can be sealed along the first fusion line (A). For example, in FIG. 11, the first opening (317) can be heat-fused along the first fusion line (A).

[0143] In FIG. 11, when the first opening (317) (or the first insulation sheet (310) and the second insulation sheet (320)) is heat-fused along the first fusion line (A), the first opening (317) in the portion where the second insulation sheet (320) is inserted can be sealed by heat-fusion of one side and the other side of the first layer with the second layer. In FIG. 11, when the first opening (317) is heat-fused along the first fusion line (A), the first opening (317) in the portion where the second insulation sheet (320) is not inserted can be sealed by heat-fusion of one side of the first layer with the other side of the first layer.

[0144] For example, the second opening (323) may not be sealed by heat fusion. For example, the inner surface of the second insulation sheet (320) may include a layer that is not heat fused. The inner surface of the second insulation sheet (320) may be formed of a material that is not heat fused.

[0145] For example, the second insulation sheet (320) may include a sealing means (321) for sealing the second opening (323). For example, the sealing means (321) may include double-sided tape, adhesive, etc. After the second refrigerant is inserted into the second internal space of the second insulation sheet (320) through the second opening (323), the second opening (323) may be sealed by the sealing means (321).

[0146] For example, the first internal space can be filled with a first refrigerant through the inlet (315) of the first insulation sheet (310). For example, the second opening (323) can be sealed after the second refrigerant is placed in the second internal space.

[0147] For example, the first insulation sheet (310) may include an inlet (315). The first refrigerant may be injected into the first internal space through the inlet (315). For example, after the first opening (317) is sealed and the second insulation sheet (320) is inserted and fixed inside the first insulation sheet (310), the first refrigerant may be injected and / or filled into the first internal space. After the first refrigerant is injected and / or filled into the first internal space, the first refrigerant may be cooled. After the first refrigerant (e.g., water, etc.) is cooled, the (cooled) second refrigerant (e.g., dry ice, etc.) may be inserted into the second internal space. After the second refrigerant is inserted, the second opening (323) may be sealed.

[0148] As described above, the first refrigerant and the second refrigerant may be located in the first internal space and the second internal space, respectively, in a cooled state. The first opening (317) and the second opening (323) are sealed, so that the first internal space and the second internal space can be sealed.

[0149] For example, the first insulation sheet (310) can be heat-fused along a first fusion line (A) formed along the first opening (317) and a second fusion line (B) formed spaced apart from the first fusion line (A).

[0150] Regarding the thermal fusion of the first insulation sheet (310) according to the second fusion line (B), the description of the thermal fusion of the first insulation sheet (310) according to the first fusion line (A) can be applied substantially the same way.

[0151] For example, in FIG. 11, when the first insulation sheet (310) is heat-fused along the second fusion line (B), the portion of the first insulation sheet (310) into which the second insulation sheet (320) is inserted may be sealed by heat-fusion of one side and the other side of the first layer (of the first insulation sheet (310)) with the second layer (of the second insulation sheet (320). In FIG. 11, when the first insulation sheet (310) is heat-fused along the second fusion line (B), the portion of the first insulation sheet (310) into which the second insulation sheet (320) is not inserted may be sealed by heat-fusion of one side of the first layer with the other side of the first layer.

[0152] For example, when the first opening (317) is sealed (or heat-sealed) along the first fusion line (A) and the first refrigerant is injected into the first internal space, the seal of the first opening (317) may be released by the volume change (or expansion) of the first refrigerant when the first refrigerant is cooled.

[0153] For example, when the first insulation sheet (310) is heat-fused along the first fusion line (A) and the second fusion line (B), the first refrigerant may be injected into a space spaced apart from the first opening (317) (or, the first fusion line (A)). For example, the first refrigerant may be injected into a portion of the first internal space (e.g., the internal space (311) of FIG. 11 and FIG. 12, the internal space (311) above the second fusion line (B) of FIG. 11 and FIG. 12).

[0154] In FIGS. 11 and 12, when the first insulation sheet (310) is heat-fused along the first fusion line (A) and the second fusion line (B), the first refrigerant may not be injected into the remaining part of the first internal space (e.g., the internal space (313) in FIGS. 11 and 12, the internal space (313) between the first fusion line (A) and the second fusion line (B)).

[0155] Since the first refrigerant is not injected into the first internal space (313) adjacent to the first opening (317) and / or the second opening (323), the sealed first opening (317) may be prevented and / or avoided from opening due to a change in the volume of the first refrigerant. Alternatively, the effect of a change in the volume of the first refrigerant on the sealed first opening (317) may be minimized.

[0156] For example, the coolant package (300) may include a gas permeable hole (330). For example, in FIGS. 11 and 12, the first insulation sheet (310) and the second insulation sheet (320) may include a gas permeable hole (330) between the first fusion line (A) and the second fusion line (B). For example, the gas permeable hole (330) may be formed to penetrate the first insulation sheet (310) and the second insulation sheet (320).

[0157] When the volume of the second refrigerant expands or the state of the second refrigerant changes due to a change in temperature, the fluid in the second internal space can be discharged to the outside through the gas permeation hole (330). For example, if the second refrigerant is dry ice, the dry ice in a solid state may sublimate, causing the pressure in the second internal space to rise. By discharging the gas (or fluid) in the second internal space to the outside through the gas permeation hole (330), the rise in pressure in the second internal space can be prevented.

[0158] Since the gas permeation hole (330) is formed at a location where the first refrigerant is not charged, the first refrigerant is not discharged to the outside through the gas permeation hole (330).

[0159] In FIGS. 11 and 12, a cooling agent package (300) comprising two insulation sheets (e.g., a first insulation sheet (310) and a second insulation sheet (320)) is described, but is not limited thereto. For example, the cooling agent package (300) may include a plurality of insulation sheets and a second insulation sheet (320) that are substantially identical to the first insulation sheet (310).

[0160]

[0161] FIG. 13 is a drawing showing the openings of the first insulation sheet (310) and the second insulation sheet (320) according to various embodiments. FIG. 14 is a drawing showing the openings of the first insulation sheet (310) and the second insulation sheet (320) after fusion according to various embodiments.

[0162] As shown in FIG. 13, the second insulation sheet (320) can be inserted into the interior of the first insulation sheet (310). When heat-fused along an opening (e.g., the first fusion line (A) in FIG. 11 and FIG. 12), the openings of the first insulation sheet (310) and the second insulation sheet (320) can be in a state as shown in FIG. 14. As shown in FIG. 14, the first opening (317) of the first insulation sheet (310) is sealed, and the opening (323) of the second insulation sheet (320) can be open.

[0163] For example, the inner surface of the first insulation sheet (310) may include a first layer that can be heat-fused. The first layer may be formed along a first fusion line (A) and / or a second fusion line (B) that is heat-fused. The first layer may be formed over the entire inner surface of the first insulation sheet (310).

[0164] For example, the outer surface of the second insulation sheet (320) may include a second layer that can be heat-fused. For example, the second layer may be formed along the first fusion line (A) and / or the second fusion line (B) that is heat-fused. For example, the second layer may be formed over the entire outer surface of the second insulation sheet (320).

[0165] As shown in FIGS. 13 and 14, when the first insulation sheet (310) and / or the second insulation sheet (320) are fused along the first fusion line (A), the first opening (317) of the first insulation sheet (310) is sealed, and the second opening (323) of the second insulation sheet (320) can remain open.

[0166] For example, one side of the first layer can be fused with the other side of the first layer. For example, the first layer can be fused with the second layer.

[0167]

[0168] FIG. 15 is a drawing showing a cooling agent package (500) according to various embodiments.

[0169] Referring to FIG. 15, in one embodiment, another cooling agent package (500) may include a first pouch, a second pouch (530), and an opening / closing device (510).

[0170] The first pouch may be located inside the second pouch (530). The interior of the first pouch may be connected to the outside through a through hole of the opening / closing device (510) (e.g., spout). Through the through hole, a first refrigerant (e.g., dry ice) may be inserted or injected into the interior of the first pouch. After the first refrigerant is inserted or injected into the interior of the first pouch, the cover may be coupled with the opening / closing device (510) to seal / seale the interior of the first pouch.

[0171] A second refrigerant (e.g., water) may be inserted or injected into the interior of the second pouch (530). The second refrigerant may be located between the second pouch (530) and the first pouch. The second refrigerant may be inserted or injected through the other open side of the second pouch (530) (e.g., opposite direction to the opening / closing device (510)). The other open side of the second pouch (530) may be heat-fused after the second refrigerant is inserted or injected. By heat-fusion of the other open side of the second pouch (530), the interior of the second pouch (530) may be sealed.

[0172] For example, the first pouch and / or the second pouch (530) may include an insulating material.

[0173] The description of the first refrigerant and / or the second refrigerant of the cooling agent package (500) may be substantially the same as the description of the first refrigerant and the second refrigerant of FIGS. 1 to 14, respectively. The phase change temperature (or melting point, sublimation point) of the first refrigerant may be lower than the phase change temperature (e.g., melting point, sublimation point) of the second refrigerant.

[0174]

[0175] FIG. 16 is a drawing showing the upper side and cross-section of an opening and closing device (510) according to various embodiments.

[0176] Referring to FIG. 16, the opening / closing device (510) may include a first fusion line (511) and / or a second fusion line (513). The first fusion line (511) and / or the second fusion line (513) may be formed on the outer surface of the opening / closing device (510).

[0177] As shown in FIG. 16, the first fusion line (511) may be formed at one end of the opening / closing device (510). The second fusion line (513) may be formed in the center of the opening / closing device (510). The positions of the first fusion line (511) and / or the second fusion line (513) shown in FIG. 16 are exemplary and are not limited to the example shown in FIG. 16. For example, both the first fusion line (511) and the second fusion line (513) may be formed in the center of the opening / closing device (510).

[0178] As shown in FIG. 16, the opening / closing device (510) may have a screw thread formed at the other end. Through the screw thread, the cover can be joined to the opening / closing device (510). The screw thread shown in FIG. 16 is exemplary, and the cover and the opening / closing device (510) can be joined through various known methods, devices, and components.

[0179] As shown in the cross-section of the opening / closing device (510) in the lower part of FIG. 16, the opening / closing device (510) may include a through hole formed inside.

[0180]

[0181] FIG. 17 is a drawing showing the upper side and cross-section of an opening / closing device (510) and a first pouch (520) according to various embodiments.

[0182] The first pouch (520) can be fused to the opening / closing device (510) along the first fusion line (511). Through one open side of the first pouch (520), at least a portion of the opening / closing device (510) can be inserted into the interior of the first pouch (520). With at least a portion of the opening / closing device (510) inserted into the interior of the first pouch (520), the first pouch (520) can be fused to the opening / closing device (510) along the first fusion line (511).

[0183] As shown in the cross-section of the first pouch (520) and the opening / closing device (510) illustrated in the lower part of FIG. 17, the interior of the first pouch (520) can be connected to the outside through the through hole of the opening / closing device (510).

[0184]

[0185] FIGS. 18 and 19 are drawings showing the upper side and cross-section of an opening / closing device (510), a first pouch (520), and a second pouch (530) according to various embodiments.

[0186] FIG. 18 is an example showing the state in which the second pouch (530) is coupled to the opening / closing device (510) in the state of FIG. 17.

[0187] The second pouch (530) can be fused to the opening / closing device (510) along the second fusion line (513). Through one open side of the second pouch (530), at least a portion of the opening / closing device (510) can be inserted into the interior of the second pouch (530). With at least a portion of the opening / closing device (510) inserted into the interior of the second pouch (530), the second pouch (530) can be fused to the opening / closing device (510) along the second fusion line (513).

[0188] The other side of the second pouch (530) (e.g., the 12 o'clock direction in FIG. 18) may be open.

[0189] As shown in the cross-section of the opening / closing device (510), the first pouch (520), and the second pouch (530) illustrated in the lower part of FIG. 18, the first pouch (510) may be located inside the second pouch (530).

[0190]

[0191] FIG. 19 is an example showing a state in which a second refrigerant (533) is inserted or injected into the interior of the second pouch (530) in the state of FIG. 18.

[0192] For example, the second refrigerant (533) can be inserted or injected through the open other side (531) of the second pouch (530). Since the remaining parts of the second pouch (530), excluding the other side (531), are all sealed, the second refrigerant (533) can be located between the first pouch (520) and the second pouch (530).

[0193] After the second refrigerant (533) is inserted or injected into the interior of the second pouch (530), the other side (531) can be sealed. For example, the other side (531) of the second pouch (530) can be heat-fused so that the other side (531) of the second pouch (530) is sealed.

[0194] As shown in the cross-section of the opening / closing device (510), the first pouch (520), and the second pouch (530) in the lower part of FIG. 19, the second refrigerant (533) can be filled into the interior of the second pouch (530) (or between the first pouch (520) and the second pouch (530)).

[0195]

[0196] FIG. 20 is a drawing showing the upper side and cross-section of an opening / closing device (510), a first pouch (520), a second pouch (530), and a cover (515) according to various embodiments.

[0197] FIG. 20 is an example showing a state in which a first refrigerant (523) is inserted or injected into the interior of a first pouch (520) in the state of FIG. 19.

[0198] For example, the first refrigerant (523) can be inserted or injected into the interior of the first pouch (520) through the through hole of the opening / closing device (510).

[0199] After the first refrigerant (523) is inserted or injected into the interior of the first pouch (520), the cover (515) is coupled to the opening / closing device (510), so that the interior of the first pouch (520) can be sealed.

[0200] FIG. 20 is a drawing showing an example in which a cover (515) is joined to an opening / closing device (510) through a screw thread formed on the outer surface of the opening / closing device (510) and a screw thread formed on the inner surface of the cover (515). The cover (515) and the opening / closing device (510) can be joined using various known methods, devices, or materials (e.g., adhesive, magnet, etc.).

[0201] For example, the cover (515) may include a sealing material that allows gas inside the first pouch (520) to flow to the outside of the first pouch (520). Through the sealing material, only the gas inside the first pouch (520) can flow to the outside. The sealing material can prevent the first refrigerant (523) from leaking out. Since the gas inside the first pouch (520) can escape to the outside through the sealing material, even if the volume of the first refrigerant (523) increases due to phase change, the pressure inside the first pouch (520) can be prevented from increasing.

[0202] As shown in the cross-section of the opening / closing device (510), the first pouch (520), and the second pouch (530) shown in the lower part of FIG. 20, the first refrigerant (523) can be filled inside the first pouch (520).

[0203] As shown in FIG. 20, the interiors of the first pouch (520) and the second pouch (530) can be sealed with the first refrigerant (523) and the second refrigerant (533), respectively.

[0204] The phase change temperature of the first refrigerant (523) may be lower than the phase change temperature of the second refrigerant (533). Since the phase change temperature of the first refrigerant (523) is lower than the phase change temperature of the second refrigerant (533), it is possible to prevent overcooling of the article by the cooling agent package, improve cooling efficiency, or extend the cooling time.

[0205] In FIGS. 17 to 20 above, the inner surfaces of the first pouch (520) and the second pouch (530) may include a heat-fused material.

[0206] Referring to FIGS. 17 to 20 above, a method for manufacturing a coolant package according to various embodiments may include at least one of the following operations: fusing one open side of a first pouch (520) along a first fusion line (511) of an opening / closing device (510) including a through hole; fusing one open side of a second pouch (530) along a second fusion line (513) formed spaced apart from the first fusion line; injecting a second refrigerant (533) through the other open side (531) of the second pouch (530); sealing the other open side (531) of the second pouch (530); injecting a first refrigerant (523) into the interior of the first pouch (520) through a through hole; and coupling a cover (515) to the opening / closing device (510) to seal the interior of the first pouch (520), or a combination thereof. there is.

[0207]

[0208] FIG. 21 is a drawing showing the upper side and cross-section of a container (540) according to various embodiments.

[0209] Referring to FIG. 21, the container (540) may include an opening / closing device (545) having a through hole formed therein. The interior of the container (540) may be connected to the outside through the through hole. The opening / closing device (545) may include a fusion line (541) on its outer surface.

[0210] For example, the container (540) may be formed from an insulating material. The shape and / or form of the container (540) may be fixed. For example, the material of the container (540) may include a material (e.g., PE) for maintaining a fixed shape and / or form under an external force of a certain magnitude or less.

[0211] As shown in the cross-section of the container (540) in the lower part of FIG. 21, the interior of the container (540) can be connected to the outside through a through hole.

[0212]

[0213] FIG. 22 is a drawing showing the upper side and cross-section of a container (540) and a pouch (530) according to various embodiments.

[0214] FIG. 22 is an example showing a state in which a pouch (530) is combined with the container (540) of FIG. 21.

[0215] The pouch (530) can be fused to the container (540) along the fusion line (543). Through one open side of the pouch (530), at least a portion of the container (540) (or the opening / closing device (545)) can be inserted into the interior of the pouch (530). With at least a portion of the container (540) (or the opening / closing device (545)) inserted into the interior of the pouch (530), the pouch (530) can be fused to the container (540) along the fusion line (543).

[0216] The other side of the pouch (530) (e.g., the 12 o'clock direction in FIG. 22) may be open.

[0217] As shown in the cross-section of the pouch (530) and the container (540) illustrated in the lower part of FIG. 22, the container (540) may be positioned inside the pouch (530).

[0218]

[0219] FIG. 23 is a drawing showing the upper side and cross-section of a container (540) including a protrusion (547) according to various embodiments.

[0220] Regarding the container (540) shown in FIG. 23, the same description as that of the container (540) described in FIG. 21 may be omitted.

[0221] Referring to the upper surface of the container (540) illustrated in FIG. 23, the protrusion (547) may be formed along the longitudinal direction of the container (540) (e.g., the 12 o'clock to 6 o'clock direction in FIG. 23), but is not limited thereto. For example, the protrusion (547) may be formed along the circumferential direction of the container (540) (e.g., the 9 o'clock to 3 o'clock direction in FIG. 23).

[0222] Referring to the cross-section of the container (540) shown in the lower part of FIG. 23, the container (540) may include at least one protrusion (547).

[0223]

[0224] FIGS. 24 and 25 are drawings showing the upper side and cross-section of a container (540) and a pouch (530) including protrusions according to various embodiments.

[0225] FIG. 24 is an example showing a state in which a pouch (530) is combined with the container (540) of FIG. 23. With respect to the container (540) and pouch (530) shown in FIG. 24, the same details as those described in FIG. 22 regarding the container (540) and pouch (530) may be omitted.

[0226] With at least a portion of the container (540) (or, the opening / closing device (545) inserted into one side of the open pouch (530), the pouch (530) can be fused to the container (540) along the fusion line (541).

[0227] With respect to the upper side and cross-section of the container (540) and pouch (530) shown in FIG. 24, the description of the upper side and cross-section of the container (540) and pouch (530) shown in FIG. 22 can be applied substantially the same, except that the container (540) includes a protrusion (547).

[0228]

[0229] FIG. 25 is an example showing a state in which a second refrigerant (533) is inserted or injected into the interior of the pouch (530) in the state of FIG. 24.

[0230] For example, the second refrigerant (533) can be inserted or injected through the open other side (531) of the pouch (530). Since the remaining parts of the pouch (530), excluding the other side (531), are all sealed, the second refrigerant (533) can be located between the container (540) and the second pouch (530).

[0231] After the second refrigerant (533) is inserted or injected into the interior of the pouch (530), the other side (531) can be sealed. For example, the other side (531) of the pouch (530) can be heat-fused so that the other side (531) of the pouch (530) is sealed.

[0232] As shown in the cross-section of the container (540) and pouch (530) in the lower part of FIG. 25, a second refrigerant (533) can be filled inside the pouch (530) (or between the container (540) and the pouch (530).

[0233]

[0234] FIG. 26 is a drawing showing the upper side and cross-section of a container (540), pouch (530), and cover (549) including a protrusion (547) according to various embodiments.

[0235] FIG. 26 is an example showing a state in which a first refrigerant (543) (e.g., pellets, granular dry ice) is inserted or injected into the interior of a container (540) in the state of FIG. 25.

[0236] For example, the first refrigerant (543) can be inserted or injected into the interior of the container (540) through the through hole of the opening / closing device (545).

[0237] After the first refrigerant (543) is inserted or injected into the interior of the container (540), the cover (549) is coupled to the opening / closing device (545), so that the interior of the container (540) can be sealed.

[0238] FIG. 26 is a drawing showing an example in which a cover (549) is joined to a closing device (545) through a thread formed on the outer surface of the opening device (545) and a thread formed on the inner surface of the cover (549). The cover (549) and the opening device (545) can be joined using various known methods, devices, or materials (e.g., adhesive, magnet, etc.).

[0239] For example, the cover (549) may include a sealing material that allows gas inside the container (540) to flow to the outside of the container (540). The description of the sealing material may be substantially the same as the description of the sealing material of the cover (515) of FIG. 20.

[0240] As shown in the cross-section of the container (540) and pouch (530) in the lower part of FIG. 26, the first refrigerant (543) can be filled inside the container (540).

[0241] As shown in FIG. 26, the interiors of the container (540) and the pouch (530) can be sealed with the first refrigerant (543) and the second refrigerant (533), respectively.

[0242] The phase change temperature of the first refrigerant (543) may be lower than the phase change temperature of the second refrigerant (533). Since the phase change temperature of the first refrigerant (543) is lower than the phase change temperature of the second refrigerant (533), it is possible to prevent overcooling of the article by the cooling agent package, improve cooling efficiency, or extend the cooling time.

[0243] In FIGS. 21 to 26 above, the inner surface of the pouch (530) may include a heat-fused material.

[0244] FIGS. 25 and 26 above describe a process of filling a container (540) and a pouch (530) each with a protrusion (547) with a first refrigerant (543) and a second refrigerant (533), respectively, and sealing the container (540) and the pouch (530), but are not limited thereto. For example, with respect to the container (530) and pouch (530) of FIG. 22, the process of filling the container (540) and the pouch (530) with the first refrigerant (543) and the second refrigerant (533) described in FIGS. 25 and 26, and sealing the container (540) and the pouch (530), may be applied substantially in the same way.

[0245] Referring to FIGS. 21 to 26 above, a method for manufacturing a cooling agent package according to various embodiments may include at least one of the following operations: fusing one open side of a pouch (530) along a fusion line (541) of an opening / closing device (545); injecting a second refrigerant (533) through the other open side (531) of the pouch (530); sealing the other open side (531) of the pouch (530); injecting a first refrigerant (543) into the interior of a container (540) through a through hole of an opening / closing device (545); and sealing the interior of a container (540) by attaching a cover (549) to an opening / closing device (510), or a combination thereof.

[0246]

[0247] FIG. 27 is a drawing showing an example of the exterior and interior cross-section of the cooling agent package (500) shown in FIG. 26.

[0248] As shown in FIG. 27, the container (540) may be located inside the pouch (530). The interior of the pouch (530) and the interior of the container (540) may be sealed. The interior of the pouch (530) may be sealed by heat-fusion of one side and / or the other side of the pouch (530). The interior of the container (540) may be sealed by combining the cover (549) with the opening / closing device (545).

[0249] In FIG. 27, the container (540) of the coolant package (500) is shown as having a protrusion (547), but is not limited thereto. Even in the case of a coolant package (500) in which the container (540) does not have a protrusion (547), the description of the coolant package (500) in FIG. 27 can be applied substantially the same way.

[0250]

[0251] FIG. 28 is a drawing showing cross-sections (600, 700) of a cooling agent package (500) according to various embodiments.

[0252] FIG. 28 is an example showing a cross-section (600) of a cooling agent package (500) that does not include a protrusion (547), and a cross-section (700) of a cooling agent package (500) that includes a protrusion (547).

[0253] As illustrated in the examples in FIGS. 23 to 27, the container (540) may include at least one protrusion (547). The protrusion (547) may maintain the appearance, shape, and / or form of the coolant package (500).

[0254] For example, after the second refrigerant (533) is filled, the coolant package (500) can be cooled. The second refrigerant (533) (e.g., water) can be injected into the interior of the pouch (530) in a liquid state. After the other side (531) of the pouch (530) is sealed, the second refrigerant (533) in a liquid state can be cooled and become a solid.

[0255] The pouch (530) may include a material in which the appearance, shape, or form is not fixed, or a flexible material. The container (540) may include a material in which the appearance, shape, or form can be fixed. Therefore, when the second refrigerant (533) in a liquid state is cooled, the thickness of the pouch (530) may not form an even thickness centered on the container (540).

[0256] If the container (540) includes a protrusion (547), the protrusion (547) can cause the thickness of the pouch (530) to be formed evenly around the container (540) when the second refrigerant (533) in a liquid state is cooled.

[0257] Referring to the cross-section (700) of FIG. 28, it can be seen that the thickness of the coolant package (500) including the protrusion (547) is uniform and the shape is smooth. On the other hand, referring to the cross-section (600), the thickness of the coolant package (500) not including the protrusion (547) may be uneven.

[0258]

[0259] Although this specification contains details of a number of specific embodiments, they should not be understood as limiting the scope of any invention or claimables, but rather as descriptions of features that may be characteristic of a specific embodiment of a specific invention. Specific features described in this specification in the context of individual embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any appropriate sub-combination. Furthermore, while features may operate in a specific combination and be described as initially claimed, one or more features from the claimed combination may be excluded from the combination in some cases, and the claimed combination may be changed to a sub-combination or a variation of the sub-combination.

[0260] Likewise, although operations are depicted in the drawings in a specific order, this should not be understood as requiring that such operations be performed in that specific or sequential order depicted to obtain a desirable result, or that all depicted operations must be performed. In certain cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of the various device components of the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and devices can generally be integrated together into a single software product or packaged into multiple software products.

[0261] Meanwhile, the embodiments of the present invention disclosed in this specification and drawings are merely specific examples provided to aid understanding and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art that other variations based on the technical concept of the present invention are possible in addition to the embodiments disclosed herein.

Claims

1. Regarding the packaging of coolants, A first case in which the first refrigerant is charged; A second case inserted into the first case and containing a second refrigerant inside. including, Coolant package.

2. In Paragraph 1, The above first case is, A first member having an opening formed on one side and a part of the second case inserted therein; and The remainder of the above second case is inserted, and includes a second member that combines with the first member, Case cover coupled to the above opening including, Coolant package.

3. In Paragraph 1, A vent formed on one side of the first case, allowing fluid to flow between the internal space of the second case and the outside of the coolant package. including, Coolant package.

4. In Paragraph 1, The above first refrigerant is, A substance comprising a phase change temperature higher than the phase change temperature of the second refrigerant, Coolant package.

5. In Paragraph 1, Insulating material inserted between the first case and the second case, or attached to the outside of the first case including, Coolant package.

6. Regarding the cooling agent package, A first case formed by a pair of insulating sheets, wherein a first refrigerant is filled into the internal space formed by the insulating sheets; A second case inserted inside the first case and containing a second refrigerant inside. including, Coolant package.

7. In Paragraph 6, The above first case is, A pair of insulation sheets is fused along a plurality of first adhesive lines and a plurality of second adhesive lines, and then one end and the other end are fused to form a Coolant package.

8. In Paragraph 7, The above first case is, When the first refrigerant is charged, a plurality of shells are formed along the plurality of first adhesive lines, and the shape of the first case is formed along the plurality of second adhesive lines. Coolant package.

9. In Paragraph 7, A sealing means for sealing the first case, wherein a fluid passage is formed that allows fluid flow between the internal space of the second case and the outside of the coolant package. including more, Coolant package.

10. Regarding the packaging of coolants, A first insulating sheet comprising a first internal space and a first opening formed on one side; and A second insulation sheet comprising a second internal space and a second opening formed on one side, wherein at least a portion thereof is inserted into the first internal space of the first insulation sheet. Includes, The above-mentioned first insulation sheet is, With at least a portion of the second insulation sheet inserted into the first internal space, the first opening is sealed, Coolant package.

11. In Paragraph 10, The above-mentioned first internal space is, A first refrigerant is charged through the inlet of the first insulation sheet, and The above second opening is, Sealed after the second refrigerant is located in the second internal space, Coolant package.

12. In Paragraph 10, The above-mentioned first insulation sheet is, It includes a first layer that can be heat-fused to at least a portion of the inner surface, and The above second insulation sheet is, It includes a second layer that can be heat-fused to at least a portion of the outer surface, and The above-mentioned first opening surface is, One side of the first layer is fused with the other side of the first layer, and the one side and the other side of the first layer are fused with the second layer to be sealed. Coolant package.

13. In Paragraph 10, The above-mentioned first insulation sheet is, A first fusion line formed along the first opening surface and a second fusion line formed spaced apart from the first fusion line, heat-fused along the first fusion line. Coolant package.

14. In Paragraph 13, The first insulation sheet and the second insulation sheet are, A gas permeable hole between the first fusion line and the second fusion line, Coolant package.

15. Regarding the packaging of coolants, An opening and closing device comprising a first fusion line and a second fusion line formed spaced apart from the first fusion line, and a through hole; A first pouch having one side fused open along the first fusion line; A second pouch having one side opened along the second fusion line fused; and A cover that seals the interior of the first pouch connected to the through hole, combined with the above opening and closing device. including, Coolant package.

16. In Paragraph 15, The first pouch above is, After the first refrigerant is injected into the interior through the above-mentioned through hole, the cover is coupled with the opening and closing device to seal the interior, and The above second pouch is, After a second refrigerant is injected through the open other side of the second pouch, the open other side is fused to seal the interior. Coolant package.

17. In Paragraph 15, The above cover is, A sealing material comprising a gas inside the first pouch that can flow with the outside, Coolant package.

18. Regarding the packaging of coolants, A container comprising an opening / closing device—the opening / closing device includes a through hole; A pouch in which one side that is open is fused along a fusion line formed on the outer surface of the above-mentioned opening and closing device; A cover that seals the interior of the container connected to the through hole, combined with the above opening and closing device. including, Coolant package.

19. In Paragraph 18, The above container is, After the first refrigerant is injected into the interior through the above-mentioned through hole, the cover is coupled with the opening and closing device to seal the interior, and The above pouch is, After a second refrigerant is injected through the other open side of the above pouch, the other open side is fused to seal the interior. Coolant package.

20. In Paragraph 18, The above container is, including at least one protrusion on the surface, Coolant package.

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