Cloud freezing fresh-keeping bag

Abstract

The invention relates to the technical field of ice bags, in particular to a cloud freezing fresh-locking bag which comprises a body, a cold storage array arranged on the body and a shockproof heat preservation array arranged on the body and / or the cold storage array. The cold storage array comprises a plurality of columns of cold storage unit groups which are arranged at intervals in the first direction O1 of the body, and a plurality of cold storage units in each column of cold storage unit group are communicated through a first connecting channel; the multiple cold storage units in every two adjacent columns of cold storage unit sets are arranged in a staggered mode in the second direction O2 of the body, or connecting lines between the cold storage units in the corresponding rows in all the columns of cold storage unit sets are parallel to the first direction O1 of the body. The quakeproof heat preservation array comprises a plurality of rows of quakeproof heat preservation unit sets arranged at intervals in the first direction O1 of the body, and each row of quakeproof heat preservation unit sets comprises a plurality of quakeproof heat preservation units arranged at intervals in the second direction O2 of the body.

Description

[0001] Priority Application This application claims the priority of the Chinese invention patent application [Application No.: 202510331571.1] [Title of Invention: A Cloud Freezing Fresh-keeping Bag] filed on March 19, 2025, and the entire text of the priority invention patent application is incorporated herein by reference in its entirety. Technical Field

[0002] The present invention relates to the technical field of ice bags, and particularly to a cloud freezing fresh-keeping bag. Background Art

[0003] During the transportation of items such as fruits, vegetables, food, seafood, and medicine that need to be frozen or refrigerated for fresh-keeping, ice bags are widely used to physically cool the items to prevent them from spoiling under high-temperature conditions. An ice bag is a novel freezing medium. When it thaws and melts, there is no water quality pollution, and it can be reused, used for both cold and hot applications. Its effective cold capacity is 6 times that of ice of the same volume, and it can replace dry ice, ice cubes, etc. Generally, ice bags can be reused. In theory, if the ice bag packaging is not broken, the ice bag can be used indefinitely.

[0004] In the existing process of fresh-keeping and cold storage, most ice bags use an insulated box, and then place a large number of single-packed ice bags inside the insulated box, that is, a large bag body contains a cold storage material. For example, an ice bag is placed at the bottom and top of the item respectively. However, the method of using single-packed ice bags for fresh-keeping has a poor fresh-keeping effect because the contact area between it and the item is limited.

[0005] In order to improve the fresh-keeping effect, a bamboo slip-type ice bag has been proposed in the prior art. During use, it generally wraps the item in a surrounding form to achieve the purpose of cooling and fresh-keeping the item. For example, the Chinese utility model patent with the publication number CN212830330U discloses a fresh-keeping bamboo slip-type ice bag, including an ice bag body. The ice bag body is a rectangular structure formed by sequentially connecting a plurality of sub-bag bodies in the front-rear direction, and the plurality of sub-bag bodies are all detachably connected. Each sub-bag body is filled with a cooling unit, and the cooling unit is used to cool and fresh-keep the item. The bamboo slip-type ice bag, different from the traditional bamboo slip-type ice bag, can be adjusted according to the size of the item, so as to be suitable for the transportation needs of various sizes of items, has strong practicability, can also make full use of the frozen area of the ice bag, and reduce waste; and it is provided with a fixing structure, which can connect and fix a plurality of sub-bag bodies to fix the item in the ice bag, thereby improving the cooling and fresh-keeping effect of the ice bag, and also having the advantages of convenient use and low implementation cost.

[0006] Although the above-mentioned bamboo-slip ice bag can wrap items in a surrounding form, the contact area between it and the items is still limited, especially for some irregular items. Moreover, it requires a higher amount of cold storage material and does not fully utilize the refrigeration effect of the cold storage material. Summary of the Invention

[0007] The purpose of the present invention is to provide a cloud-freezing fresh-keeping ice bag, which can partially solve or alleviate the above deficiencies in the prior art and can better wrap items, thereby better preserving freshness.

[0008] In order to solve the above-mentioned technical problems, the present invention specifically adopts the following technical solutions: The present invention provides a cloud-freezing fresh-keeping bag, which includes a body, a cold storage array provided on the body, and a shock-proof and heat-insulating array provided on the body and / or on the cold storage array; wherein, The cold storage array includes multiple columns of cold storage unit groups arranged at intervals along the first direction O1 of the body. The multiple cold storage units in each column of cold storage unit groups are connected and communicated through a first connection channel, and the two cold storage units at the two first ends or two tail ends of two adjacent columns of cold storage unit groups are connected and communicated through a third communication channel; the multiple cold storage units in two adjacent columns of cold storage unit groups are arranged staggered along the second direction O2 of the body, or the connection lines between the corresponding rows of cold storage units in all columns of cold storage unit groups are parallel to the first direction O1 of the body; The shock-proof and heat-insulating array includes multiple columns of shock-proof and heat-insulating unit groups arranged at intervals along the first direction O1 of the body. Each column of shock-proof and heat-insulating unit groups includes multiple shock-proof and heat-insulating units arranged at intervals along the second direction O2 of the body. In some embodiments, the cloud-freezing fresh-keeping bag further includes a packaging structure surrounding the shock-proof and heat-insulating array or the cold storage array.

[0009] In some embodiments, the body further includes a buffer unit communicated with the cold storage units at the first end of each column through a second connection channel, and the volume of the buffer unit is smaller than the volume of the cold storage unit.

[0010] In some embodiments, the packaging structure includes multiple buckle pieces evenly spaced on the edge of the first long side, and a slit that can cooperate with the buckle piece is provided between two adjacent buckle pieces; and multiple buckle pieces are also evenly spaced on the edge of the second long side of the body, and a slit that can cooperate with the buckle piece is provided between two adjacent buckle pieces; or, The encapsulation structure includes a plurality of slits evenly spaced on the edge of the first long side, and a buckle member that can cooperate with the slits is arranged between two adjacent slits; and the body also includes a plurality of slits evenly spaced on the edge of the second long side, and a buckle member that can cooperate with the plurality of slits is arranged between two adjacent slits.

[0011] In some embodiments, the buckle member includes a movable leaf with a connecting end fixedly connected to the body, and a strip fixedly connected to the free end of the movable leaf that can pass through the slit and be snap-fitted with it.

[0012] When the cold storage material used is still in a liquid state even in the frozen state, the fresh-keeping bag has very good foldability, so that it can fit well with the surface of the item to be wrapped, that is, the contact area between it and the internal wrapped item (compared with an ice bag using ice cubes) is larger, and thus it can better provide a frozen environment for the item and keep it fresh for a longer time. Further, in order to be applicable to wrapped items of various sizes, the fresh-keeping bag adopts a sheet structure. When in use, only need to place the wrapped item in the middle or other appropriate positions, and then overlap the two side edges in the length direction. However, during transportation, especially when encountering bumpy roads and other situations, the position of the item is likely to shift, such as running to the upper and lower sides, or even protruding from the upper and lower sides and partially detaching from the fresh-keeping bag. Therefore, in this application, by setting the encapsulation structure, the cooperation between the buckle member and the slit not only enables the upper and lower side edges to be buckled, but also the two edges in the length direction can be buckled together, so as to well confine the item in the frozen space formed after the fresh-keeping bag is bent. And by setting the slit and the buckle member, the length of the fresh-keeping bag can be cut at any time according to the required length without affecting its sealing structure, with high flexibility.

[0013] In some embodiments, a support column array is arranged on the second side surface of the body. The support column array includes: multiple columns of support column groups spaced along the first direction O1 / second direction O2 of the body. Each support column in the support column group includes: a support body with a first end fixedly connected to the second side surface, and a card slot is arranged at the second end of the support body far from the second side surface; When the body is bent, the card slot on the support column can be snap-fitted with the card slot on another support column.

[0014] In some embodiments, a support column array is arranged on the first side surface of the body. The support column array includes: multiple columns of support column groups spaced along the first direction O1 / second direction O2 of the body. Each support column in the support column group includes: a support body with a first end fixedly connected to the first side surface, and a card slot is arranged at the second end of the support body far from the second side surface; When multiple cloud frozen fresh-keeping bags are stacked, the card slots on at least one of the support columns on the cloud frozen fresh-keeping bag located below can be snap-fitted with the card slots on at least one of the support columns on the cloud frozen fresh-keeping bag located above.

[0015] When the cold storage material used remains in a liquid state even in the frozen state, although it can have a large contact area with the internal wrapped items, when multiple fresh-keeping bags are stacked together and transported in a transport box, the fresh-keeping bag at the bottom is subjected to the greatest pressure. Therefore, the fresh-keeping bag and the items at the bottom are easily squeezed and deformed. To avoid or alleviate this problem, support columns are provided on its inner or outer side for alleviation. For example, for some items with a relatively large volume and relatively large self-supporting ability but higher freezing requirements, fresh-keeping bags with support columns provided on the outer side are used for packaging, which enables pressure dispersion and support between multiple packaging bags through the support columns. For some small and scattered items, such as frozen shrimp, they can be directly placed separately between the inner support columns (in this case, the encapsulation structure adopts the form of an adhesive or a drawstring or a pull cord or a zipper as shown in Figure 10 ), and then sealed.

[0016] In some embodiments, three clamping blocks are provided on the second end of the support body, and the three clamping blocks and the second end of the support body enclose to form the card slot having a top opening and a side opening.

[0017] In some embodiments, the three clamping blocks are arranged in a triangular pattern.

[0018] In some embodiments, the body is made of a biodegradable material. Specifically, the body is flexible and can be bent or folded. Preferably, the biodegradable material includes straw.

[0019] In some embodiments, an NFC chip is provided on the body.

[0020] Advantageous effects: (1) By arranging the cold storage unit array in the cloud frozen fresh-keeping bag of the present invention, when the liquid cold storage material in each cold storage unit is frozen, whether it becomes solid or remains liquid, it can be folded in actual application. Compared with the traditional integrated ice bag, it can better wrap the items to be preserved (such as food ingredients, medicines, etc.), so that the contact area between the cold storage material and the items to be preserved becomes larger, and thus better preservation can be achieved. Especially when the liquid cold storage material remains in a liquid state after being frozen. For example, it still maintains a -18°C deep cold environment in liquid form, meeting the professional-level cold chain standard and perfectly adapting to temperature-sensitive fields such as high-end food ingredients and biological preparations.

[0021] (2)The present invention proposes the integration of "three-dimensional cold preservation + buffer protection" functions, that is, on the basis of the above-mentioned almost fully enclosed and evenly distributed cooling capacity, an earthquake-resistant structure is configured, thereby reducing the demand for shock-proof foam in the traditional cold chain transportation process, and at least reducing more than 30% of packaging consumables, breaking the cumbersome combination of "ice bags + shock-proof foam" in the traditional cold chain. In addition, since the earthquake-resistant structure is arranged on the outside and the earthquake-resistant structure includes air bubbles, a gas heat insulation layer is formed outside the cold storage array while providing earthquake protection, thus further ensuring the frozen environment during transportation.

[0022] (3)An industrial-grade NFC chip can also be built into the fresh-keeping bag of the present invention, enabling users to obtain full-link data such as the product batch, transportation track, and temperature control curve of the wrapped product by scanning the code, providing a "transparent cold chain" trust endorsement for high-end customers.

[0023] (4)The fresh-keeping bag in the present invention is made of bio-degradable materials such as existing modified straw composite materials, and its strength reaches more than 80% of ABS plastic, realizing 100% biodegradable recycling. The carbon emission of a single product in its whole life cycle is reduced by 2.3 kg, which is in line with the ESG development trend. Moreover, the fresh-keeping bag of the present invention can be recycled.

[0024] (5)The fresh-keeping bag of the present invention has the ability to adapt to multi-dimensional scenarios: professional distribution requirements such as Michelin food ingredient distribution and medical cold chain; it can be applied to consumer upgrade markets such as outdoor leisure (the cold preservation duration exceeds camping / fishing requirements) and e-commerce high-quality packaging; it can also be extended to special fields such as emergency medical treatment and scientific research sample transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. In all the drawings, similar elements or parts are generally marked with similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale. Obviously, the following-described drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of the inner side of the cloud frozen fresh-keeping bag according to the first embodiment of the present invention; Figure 2 is Figure 1 a schematic structural diagram of the outer side of the shown fresh-keeping bag; Figure 3 is Figure 1 a schematic diagram of the manufacturing process of the shown fresh-keeping bag; Figure 4Schematic diagram of the manufacturing process of the cloud-freezing fresh-keeping bag according to the second embodiment of the present invention; Figure 5 Schematic diagram of the inner structure of the cloud-freezing fresh-keeping bag according to the third embodiment of the present invention; Figure 6a Schematic diagram of the structure of the cloud-freezing fresh-keeping bag according to the fourth embodiment of the present invention; Figure 6b For Figure 6a Schematic diagram of the inner structure of the shown cloud-freezing fresh-keeping bag; Figure 6c For Figure 6a Cross-sectional view of the shown cloud-freezing fresh-keeping bag; Figure 6d To reflect Figure 6a Schematic diagram of the support column structure in the shown freezing fresh-keeping bag; Figure 7 Schematic diagram of the cloud-freezing fresh-keeping bag of the present invention after being encapsulated by the encapsulation structure; Figure 8a For Figure 7 Cross-sectional view of the shown fresh-keeping bag from the first perspective; Figure 8b For Figure 7 Cross-sectional view of the shown fresh-keeping bag from the second perspective; Figure 8c Schematic diagram to reflect the snap connection of two support columns; Figure 9 Schematic diagram of an embodiment of the encapsulation structure of the cloud-freezing fresh-keeping bag of the present invention; Figure 10 Schematic diagram to reflect that when the encapsulation structure of the cloud-freezing fresh-keeping bag of the present invention adopts a zipper assembly, the first sheet and the second sheet of the body are folded in half to form a packaging bag through the zipper assembly; Figure 11 Schematic diagram of another embodiment of the cold storage array in the cloud-freezing fresh-keeping bag of the present invention.

[0027] Summary of reference numeral identification: 1 body, 1a first sheet, 1b second sheet, 1c third sheet, 100a first film, 100b second film, 101 first side, 102 second side; 2 cold storage array, 21 cold storage unit, 22 first connection channel, 23 buffer unit, 24 second communication channel; 3 shockproof and heat preservation array, 31 shockproof and heat preservation unit; 4 support column, 41 support body, 42 clamping block, 43 clamping groove, 44 protrusion; encapsulation structure, 51 buckle piece, 511 clamping strip, 512 movable leaf, 52 slit, 53 first zipper, 54 second zipper. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In this document, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present invention, and they have no specific meaning by themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0030] In this document, the orientation or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "front", "rear", "one end", "the other end", etc. are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In this document, unless otherwise clearly defined and limited, terms such as "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In this document, "and / or" includes any and all combinations of one or more of the listed related items.

[0033] In this document, "a plurality of" means two or more, that is, it includes two, three, four, five, etc.

[0034] As used in this specification, the term "about" typically represents + / - 5% of the stated value, more typically + / - 4% of the stated value, more typically + / - 3% of the stated value, more typically + / - 2% of the stated value, even more typically + / - 1% of the stated value, and even more typically + / - 0.5% of the stated value.

[0035] The present invention provides a cloud-freezing fresh-keeping bag, which includes a sheet-like or plate-like body 1 made of a flexible material (preferably, it has a relatively long length, so that the user can cut it arbitrarily according to actual needs), a cold storage array 2 provided on the body 1, and a shock-proof and heat-insulating array 3 (i.e., shock-resistant structure) provided on the body 1; wherein, the cold storage array 2 includes multiple columns of cold storage unit groups arranged at intervals along the first direction O1 of the body 1 (for example, the length direction or width direction of the body 1), and a plurality of cold storage units 21 in each column of cold storage unit groups are connected and communicated through a connection channel 22, and an injection port (not shown in the figure) is provided on the cold storage unit 21 at the head of each column. By designing the cold storage array, on the one hand, the body 1 has bendability or foldability, so as to ensure the wrapping of items, and on the other hand, it is necessary to ensure that there is sufficient contact area between the cold storage unit and the wrapped items, so as to ensure the fresh-keeping effect. On the other hand, by setting the anti-collision and heat-insulating array, when the fresh-keeping bag is impacted by an external force, the anti-shock and heat-insulating units in the anti-shock and heat-insulating array 3 can deform, absorb and disperse the impact force, reduce the force transmitted to the cold storage array 2, and thus reduce the risk of the fresh-keeping bag breaking.

[0036] The following is a detailed description with specific embodiments.

[0037] Embodiment 1: Refer to Figure 1 , the present invention provides a cloud-freezing fresh-keeping bag, which includes a flexible body 1, a cold storage array 2 provided on the body 1, and a shock-proof and heat-insulating array 3 (i.e., shock-resistant structure) provided on the body 1; wherein, the cold storage array 2 includes multiple columns of cold storage unit groups arranged at intervals along the first direction O1 of the body 1, that is, the width direction of the body 1, and a plurality of cold storage units 21 arranged at intervals along the second direction O2, that is, the length direction of the body 1, in each column of cold storage unit groups are connected and communicated through a connection channel 22, and an injection port (not shown in the figure) is provided on the cold storage unit 21 at the head of each column. Of course, an easily tearable sealing film or sealing plug is provided at the injection port.

[0038] Refer to Figure 3 , in this embodiment, the above-mentioned body 1 is made of two layers of films: a first film 100a and a second film 100b through a specific process, such as a hot pressing or bonding process, etc. A matrix of multiple bubbles (filled with air or gas inside) is provided on the first film 100a, so as to form a shock-proof and heat-insulating array 3 on the first side 101 of the body 1, and the above-mentioned cold storage array 2 is provided on the second film 100b. Among them, the layer provided with the cold storage array 2 is used as the inner side for wrapping items; the layer provided with the shock-proof and heat-insulating array 3 is used as the outer side for shock-proof and heat-insulating or heat-preserving, that is, the shock-proof and heat-insulating array 3 and the cold storage array 2 are respectively located on both sides of the body 1, refer to Figures 1 - 3 .

[0039] In some other embodiments, the above-mentioned body 1 is made of two layers of thin films through a specific process and a mold, such as a hot pressing process. A plurality of matrix-shaped bubbles (filled with air or gas inside) are provided on the first thin film 100a, so as to form a plurality of shock-proof and heat-insulating arrays 3 on the first side 101 of the body 1. The cold storage array 2 is formed between the two layers of thin films, and each cold storage unit 21 of the cold storage array 2 and the first side 101 are provided with such bubbles. See Figure 4 and Figure 5 . Among them, the layer provided with the shock-proof and heat-insulating array 3 serves as the outer side for shock-proof and heat-insulating or heat-preserving.

[0040] In some embodiments, the cold storage material in the cold storage unit 21 is liquid at room temperature and becomes solid after being frozen. For example, water becomes ice after being frozen. The cloud freezing fresh-keeping bag with built-in ice cubes is suitable for short-distance refrigerated transportation. And through the design of a single cold storage unit, the fresh-keeping bag has a certain degree of bendability or foldability, so that it can better wrap items.

[0041] In some other embodiments, the cold storage material of the cold storage unit 21 can also adopt other cold storage materials, such as a low-temperature phase-change cold storage material with a phase-change temperature of -26°C to -20°C, which remains liquid even in an environment of -18°C. By injecting such a cold storage material into the cold storage unit 21 and wrapping items with it, the contact area between the cold storage unit and the items increases after being squeezed, so that the temperature inside the package can be controlled at -18°C or even lower for a long time, thereby ensuring the freshness of the items. And, compared with dry ice, its cost is lower and it is also suitable for air transportation. In subsequent embodiments, the injection of the low-temperature phase-change cold storage material into the cold storage array is taken as an example. This is more suitable for long-term freezing / fresh-keeping or long-distance freezing / fresh-keeping, as well as air transportation scenarios. On the one hand, the synergistic effect of the cold storage array and the liquid cold storage material makes the fresh-keeping bag have higher bendability or foldability, so that the wrapping property is better, and the contact area with the items is larger, thereby better controlling the temperature, that is, better maintaining a low-temperature environment and realizing fresh-keeping.

[0042] In this embodiment, a plurality of cold storage units 21 in each column of cold storage unit groups are arranged at intervals along the second direction O2 (perpendicular to the first direction O1) of the body 1, for example, the length direction of the body, and a plurality of cold storage units 21 in adjacent two columns of cold storage unit groups are arranged staggeredly along the second direction O2 of the body 1. That is, only each column in the cold storage array 2 is parallel to each other. For example, see Figure 1, if the width direction of the body 1 is the first direction O1 and the length direction is the second direction O2, then the cold storage array 2 includes multiple columns of cold storage unit groups arranged in parallel and at intervals along the width direction of the body 1, and each group of cold storage units includes multiple cold storage units 21 arranged at uniform intervals along the length direction of the body 1. The adjacent two cold storage units 21 are connected through a first communication channel 22. Moreover, the cold storage units 21 in the adjacent two columns of cold storage unit groups are arranged staggeredly, that is, the gap between two adjacent cold storage units 21 in the previous column corresponds to one cold storage unit in the next column. Such a staggered arrangement makes the arrangement between columns closer, so that when wrapping an item, there is a larger contact area with the item. Of course, due to the tight arrangement, the foldability is somewhat lost. Therefore, in order to compensate for or eliminate this part of the loss, the size of the cold storage unit 21 can be further reduced.

[0043] Certainly, in some other embodiments, if the length direction of the body 1 is the first direction O1 and the width direction is the second direction O2, then the cold storage array 2 includes multiple columns of cold storage unit groups arranged in parallel and at intervals along the length direction of the body 1, and each group of cold storage units includes multiple cold storage units 21 arranged at uniform intervals along the width direction of the body 1. The adjacent two cold storage units 21 are connected through a communication channel 22.

[0044] In some other embodiments, the above-mentioned staggered arrangement may not be adopted. Instead, the connection lines between the corresponding rows of cold storage units in all columns of cold storage unit groups are parallel to the first direction O1 of the body 1, that is, each row of the cold storage array 2 is parallel to each other, and each column is parallel to each other, forming a regular matrix. For example, see Figure 5 , if the length direction of the body 1 is the first direction O1 and the width direction is the second direction O2, then the cold storage array 2 includes multiple columns of cold storage unit groups arranged in parallel and at intervals along the length direction of the body 1, and each group of cold storage units includes multiple cold storage units 21 arranged at uniform intervals along the width direction of the body 1. The adjacent two cold storage units 21 are connected through a first communication channel 22. Moreover, the connection lines between the corresponding rows of cold storage units 21 in all columns are parallel to the length direction of the body 1, that is, each row of the cold storage array 2 is parallel to each other, and each column is parallel to each other, forming a regular matrix. Compared with the above-mentioned staggered method, such a matrix method makes the distance between columns slightly wider, and when the cold storage unit 21 is filled with a low-temperature phase change cold storage material, the body 1 has better foldability and conformability, so as to be able to wrap the item better.

[0045] Furthermore, in some other embodiments, the cold storage unit 21 at the head or tail of each column is connected with a buffer unit 23 through a second connection channel 24, and correspondingly, the injection port is arranged on the buffer unit 23. See Figure 3 .

[0046] If the cold storage material in the cold storage unit 21 is the above-mentioned low-temperature phase-change cold storage material, under normal conditions, there is no or only a small amount of liquid cold storage material in the buffer unit 23. When the fresh-keeping bag is squeezed, such as by the gravity of food or being squeezed by other fresh-keeping bags, a part of the cold storage material in the cold storage unit 21 will enter the buffer unit 23 through the connecting channel 22, thereby reducing the risk of the cold storage unit 21 being squeezed and broken to a certain extent.

[0047] Preferably, the volume of the buffer unit 23 is smaller than that of the cold storage unit 21; the volume of the cold storage unit 21 is larger than that of the shock-proof and heat-insulating unit 31 in the shock-proof and heat-insulating array 3. For example, the volume of the cold storage unit 21 is at least three times or more than that of the shock-proof and heat-insulating unit 31.

[0048] In some embodiments, the size of the second communication channel 24 is smaller than that of the first connection channel 22. For example, the diameter of the second connection channel 24 is smaller than that of the first connection channel 22, so that almost no cold storage material will flow from the cold storage unit into the buffer unit under normal conditions, and it will only enter the buffer unit under a certain pressure. Further, the length of the second connection channel 24 is greater than that of the first connection channel 22.

[0049] In some embodiments, when the cold storage liquid is injected into the cold storage unit 21, the cold storage unit 21 is in an ellipsoidal shape. For example, when the cold storage liquid is injected into the cold storage unit 21, its cross-section is elliptical or approximately elliptical. Of course, the cold storage unit 21 can also adopt other shapes. For example, it can be in the shape of a cube, a sphere or other regular geometric bodies after injecting the cold storage liquid, and of course it can also be in other irregular shapes, or a combination of both (that is, a combination of regular geometric bodies and irregular shapes).

[0050] Compared with the bamboo-slip ice bag, in this embodiment, by setting the cold storage array 2, the main body 1 has higher foldability, wrapability and conformability. When used to wrap an item, after filling with the cold storage material and freezing, the contact area between the cold storage unit 21 and the food is larger, so as to better preserve freshness.

[0051] In some other embodiments, when the cold storage liquid is injected into the cold storage unit 21, the cold storage unit 21 is in a cylindrical shape, see Figure 11 .

[0052] In some embodiments, the main body 1, for example, the first film 100a and the second film 100b, is made of a biodegradable material. Preferably, the biodegradable material includes straw or modified straw. In some other embodiments, the first film 100a can also be a plastic film made of composite plant fiber powder to reduce possible cold energy loss and improve the heat preservation effect; the second film 100b is made of an ordinary food-grade plastic film.

[0053] In some embodiments, the main body 1 is also provided with an NFC chip, so that users can write product information into the NFC chip, enabling consumers who receive the product to also obtain the product information from the NFC. For example, full-link data such as product batches, transportation trajectories, and temperature control curves can be provided to high-end customers to provide a "transparent cold chain" trust endorsement.

[0054] In this article, "cloud freezing" means that after the main body loaded with the cold storage material is frozen, it can provide a fresh-keeping environment for a long time (that is, it can keep the temperature at a stable value or close to the stable value for a long time. For example, -18 °C), so that the items to be fresh-keeping can maintain their freshness for a long time, that is, achieve freshness locking.

[0055] In some embodiments, it is necessary to ensure both the foldability of the fresh-keeping bag and the contact area between the cold storage material and the items. Therefore, the distance between adjacent two columns of cold storage unit groups should not be too large or too small. If it is too large, although the foldability is good, the contact area is small, which affects the fresh-keeping effect. If it is too small, the foldability is not good enough to wrap the items well, reducing the contact between the cold storage material and the items. In this embodiment, the distance between adjacent two columns of cold storage unit groups ranges from 80 mm to 85 mm, preferably 80 mm; the distance between adjacent two cold storage units 21 in each column of cold storage unit groups ranges from 55 mm to 70 mm, preferably 60 mm.

[0056] Embodiment 2: The present invention also provides another fresh-keeping bag, which includes all the components in the above-mentioned Embodiment 1. The difference is that in this embodiment, in order to facilitate the filling of the cold storage material, instead of setting injection ports on the cold storage units 21 at the head or tail of each column of cold storage arrays, the third connection channel 25 is used to connect the two cold storage units 21 at the head or the two cold storage units 21 at the tail in adjacent two columns of cold storage arrays, and only the cold storage unit 21 at the head of the first column or the tail of the last column is provided with an injection port.

[0057] See Figure 6b , from left to right, the two cold storage units 21 at the tails of the first column and the second column are connected through the third connection channel 25, and the two cold storage units 21 at the heads of the second column and the third column are connected through the third connection channel 25, and so on until the last column. Such a design is more convenient for filling the cold storage material on the one hand. On the other hand, when the cold storage unit 21 is subjected to pressure, such as the gravity of the wrapped items, etc., the cold storage units 21 in the array are connected, and the acting force can be dispersed to all the cold storage units 21, thus avoiding the problem of stress concentration on a certain cold storage unit 21 or a certain area and resulting in rupture, and thereby improving the service life of the fresh-keeping bag to a certain extent. .

[0058] Embodiment 3: The present invention also provides another fresh-keeping bag, which includes each component in the above-mentioned Embodiment 1. The difference is that in this embodiment, referring to Figures 6a - 6c , on the inner side of the body 1, for example, on the second side surface 102, a first support column array is provided. The first support column array includes: multiple columns of support column groups arranged at intervals along the first direction O1 of the body 1, and each column of support column groups includes multiple support columns 4 arranged at intervals along the second direction O2.

[0059] Specifically, referring to Figure 6d , the support column 4 includes: a support body 41 whose first end is fixedly connected to the inner side of the body 1, and a card slot 43 is provided at the second end of the support body 41 away from the inner side; when the body 1 is bent, the card slot 43 on one support column 4 can be snap-fitted with the card slot 43 on another support column 4, referring to Figures 8a - 8c .

[0060] Referring to Figure 6d , in some embodiments, three clamping blocks 42 are provided at the second end of the support body 41, and the three clamping blocks 42 and the second end of the support body 41 enclose to form the card slot 43 with a top opening and a side opening. Preferably, the three clamping blocks 42 are arranged in a pin shape. Further, a protrusion 44 is provided on one clamping block 42 corresponding to one side surface of the card slot 43 at the top of the pin-shaped structure, so that when two support columns 4 are buckled together, the two protrusions 44 are used for snap fastening. Preferably, the cross section of the protrusion is triangular, and the surface where the two protrusions 44 contact each other is an inclined surface, that is, this surface has a certain inclination angle, so as to play a guiding role on the one hand and a buckling role on the other hand.

[0061] Of course, in some other embodiments, multiple columns of support column groups can also be arranged at intervals along the second direction O2 of the body 1, and each column of support column groups includes multiple support columns 4 arranged at intervals along the first direction O1.

[0062] Embodiment 4: The present invention also provides another fresh-keeping bag, which includes each component in the above-mentioned Embodiment 1 or 2 or 3. The difference is that in this embodiment, a second support column array is provided on the outer side of the body 1, for example, on the first side surface 101.

[0063] In this embodiment, the second support column array includes: multiple columns of support column groups arranged at intervals along the first direction O1 of the body 1. Each support column 4 in the support column group includes: a support body 41 whose first end is fixedly connected to the outer side, and a card slot 43 is provided at the second end of the support body 41 away from the outer side; when multiple fresh-keeping bags are stacked, the card slot 43 on at least one support column 4 on the fresh-keeping bag located below can be snap-fitted with the card slot 43 on at least one support column 4 on the fresh-keeping bag located above.

[0064] In some embodiments, three clamping blocks 42 are provided on the second end of the support body 41, and the three clamping blocks 42 and the second end of the support body 41 enclose the clamping groove 43 having a top opening and a side opening. Preferably, the three clamping blocks 42 are arranged in a triangular pattern.

[0065] Preferably, when the second support column array and the first support column array are provided simultaneously, each support column 41 on the outer side corresponds to each support column 41 on the inner side, so as to achieve pressure dispersion and support, and prevent the articles wrapped inside from being excessively squeezed and deformed.

[0066] Embodiment 5: The present invention further provides another fresh-keeping bag, which includes the components in the above Embodiment 1 or 2 or 3 or 4. The difference is that in this embodiment, the body 1 further includes a packaging structure 5 surrounding the shock-proof and heat-insulating array 3 or the cold storage array 2.

[0067] Since the body 1 has a certain length, and usually when in use, the articles are placed in the middle of the body 1, and then the two sides of the body 1 are sequentially placed on the articles to form a package. However, during transportation, the two sides are prone to looseness, and there is no sealing at the front and back. Therefore, during transportation (especially after being collided), the articles may be exposed from the front and back openings, affecting the fresh-keeping effect. Therefore, in this embodiment, the packaging structure 5 is provided so that after wrapping the articles, a sealed space (or almost sealed space) can be formed. Refer to Figures 7 - 8b .

[0068] Specifically, in some embodiments, the packaging structure 5 may adopt an adhesive surrounding the shock-proof and heat-insulating array 3 or the cold storage array 2 (for example, near the edge of the body 1). Preferably, the adhesive is provided with a tearable film for protection. When in use, the tearable film can be torn off. Thus, after wrapping the articles with the body 1, by pinching or pressing the periphery, the front and back openings can be sealed through the adhesive at the edge after wrapping the articles, and the two sides stacked on top and bottom of the body can also be adhered through the adhesive to form a seal. Specifically, there is a 5 cm spacing between the shock-proof and heat-insulating array 3 or the cold storage array 2 and the edge of the body 1. Therefore, an adhesive or other packaging structure can be provided in a circle along the edge of the body 1.

[0069] Refer to Figure 9, in some other embodiments, the encapsulation structure 5 includes: a plurality of buckle members 51 uniformly spaced along the first long side edge of the body 1, and a slit 52 is provided between two adjacent buckle members 51; similarly, a plurality of buckle members 51 are also uniformly spaced along the second long side edge of the body 1, and a slit 52 is provided between two adjacent buckle members 51. Wherein, the buckle member 51 includes a movable blade 512 whose connecting end is fixedly connected to the body 1, and a strip 511 fixedly connected to the free end of the movable blade 512 is configured to pass through the slit 52 and be buckled and matched therewith. Preferably, the length of the strip 511 is greater than the length of the slit 52.

[0070] After the body 1 is used to wrap an item, the buckle members 51 on the first long side edge can be passed through the slits 52 on the first long side edge and locked to close the front end opening of the body; similarly, the buckle members 51 on the second long side edge can be passed through the slits 52 on the second long side edge and locked to close the rear end opening of the body, so that the body forms an almost sealed bag and wraps the item inside the bag.

[0071] Preferably, the movable blade 512 is made of a flexible material, or may be made of the same material as the body 1. The strip is made of a slightly rigid material, such as plastic or rubber, and has a certain adsorption force or friction force with the surface of the body.

[0072] In some other embodiments, for some items with a small volume and requiring good sealing performance, the sheet-shaped body 1 can be combined into a bag with an opening through the encapsulation structure 5. Specifically, refer to Figure 10 , the body 1 includes a first section 1a, a second section 1b, and a third section 1c arranged in sequence along its length direction; and the encapsulation structure 5 adopts a zipper assembly, which is arranged in the edge area of the body 1 where the cold storage array 2 and the shock-proof and heat-insulating array 3 are not provided. Preferably, the lengths of the first section 1a and the second section 1b are the same and greater than the length of the third section 1c. Such an encapsulation structure can save the packaging of items and further reduce costs.

[0073] For example, first zippers 53 are respectively provided on the upper and lower sides of the wrapping surface of the first section 1a, and second zippers 54 are respectively provided on the upper and lower sides (i.e., without the above-mentioned shock absorption) of the wrapping surface of the second section 1b. And when the first section 1a and the second section 1b are folded in half, through the cooperation of the teeth between the first zippers � and the second zippers 54, such as Figure 10As shown, a wrapping space can be formed between the first section 1a and the second section 1b. Correspondingly, for better sealing, at least one snap fastener or a first zipper is provided on the side of the wrapping surface of the third section 1c away from the second section 1b. Of course, on the other side of the first section 1a (i.e., the side where the shock-proof and heat-insulating array 3 is provided), a snap groove that can cooperate with the pressing opening or a second zipper that can cooperate with the first zipper is also provided.

[0074] Of course, in some other embodiments, the zipper assemblies on the above three sections can also use snap fasteners.

[0075] Of course, in some other embodiments, draw ropes can also be directly provided along the main body 1. Thus, after pulling the ropes, the main body encloses to form a bag with only one opening, and the ropes surround the opening, which can seal the opening to a certain extent. For example, a draw rope is embedded in the four edges of the wrapping surface of the main body 1, and the two ends of the draw rope penetrate out. When the two ends of the draw rope are pulled to make the four edges gather, the main body 1 forms a wrapping space. Further, the fresh-keeping bag can be cut into different lengths in advance, and then draw ropes are provided on each part obtained by cutting, so as to obtain fresh-keeping bags with different accommodation spaces and the openings can be opened and tightened.

[0076] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0077] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. These all fall within the protection scope of the present invention.

Claims

1. A cloud frozen fresh-keeping bag, characterized in that, Comprising a main body (1), a cold storage array (2) provided on the main body (1), and a shock-proof and heat-insulating array (3) provided on the main body (1) and / or on the cold storage array (2); wherein, The cold storage array (2) includes multiple columns of cold storage unit groups arranged at intervals along the first direction O1 of the main body (1). Multiple cold storage units (21) in each column of cold storage unit groups are connected and communicated through a first connection channel (22), and two cold storage units (21) at the two first ends or two tail ends in adjacent two columns of cold storage unit groups are connected and communicated through a third communication channel (25); multiple cold storage units (21) in adjacent two columns of cold storage unit groups are arranged staggeredly along the second direction O2 of the main body (1), or the connecting lines between the corresponding rows of cold storage units (21) in all columns of cold storage unit groups are parallel to the first direction O1 of the main body (1); The shock-proof and heat-insulating array (3) includes multiple columns of shock-proof and heat-insulating unit groups arranged at intervals along the first direction O1 of the main body (1). Each column of shock-proof and heat-insulating unit groups includes multiple shock-proof and heat-insulating units (31) arranged at equal intervals along the second direction O2 of the main body (1).

2. The cloud frozen fresh-keeping bag according to claim 1, wherein It further includes a packaging structure (5) surrounding the shock-proof and heat-insulating array (3) or the cold storage array (2), The packaging structure (5) includes multiple buckle pieces (51) evenly spaced on the edge of the first long side, and a slit (52) that can cooperate with the buckle piece (51) is provided between adjacent two buckle pieces (51); and multiple buckle pieces (51) are also evenly spaced on the edge of the second long side of the main body (1), and a slit (52) that can cooperate with the buckle piece (51) is provided between adjacent two buckle pieces (51); or, The packaging structure (5) includes multiple slits (52) evenly spaced on the edge of the first long side, and a buckle piece (51) that can cooperate with the slit (52) is provided between adjacent two slits (52); and multiple slits (52) are also evenly spaced on the edge of the second long side of the main body (1), and a buckle piece (51) that can cooperate with the multiple slits (52) is provided between adjacent two multiple slits (52); or, The packaging structure (5) includes a first zipper (53) respectively provided on the upper and lower sides of the first section (1a) in the main body (1), and a second zipper (54) respectively provided on the upper and lower sides of the wrapping surface of the second section (1b) in the main body (1); and when the first section (1a) and the second section (1b) are folded in half, a wrapping space can be formed between the first section (1a) and the second section (1b) through the cooperation of the teeth of the first zipper (53) and the second zipper (54).

3. The cloud frozen fresh-keeping bag according to claim 2, characterized in that, The buckle piece (51) includes a movable leaf (512) with a connecting end fixedly connected to the main body (1), and a card strip (511) fixedly connected to the free end of the movable leaf (512) that can pass through the slit (52) and be buckled and cooperated with it.

4. The cloud frozen fresh-keeping bag according to claim 2, characterized in that, A support column array is provided on the second side surface (102) of the body (1). The support column array includes: multiple columns of support column groups arranged at intervals along the first direction O1 / second direction O2 of the body (1). Each support column (4) in the support column group includes: a support body (41) with a first end fixedly connected to the second side surface (102), and a card slot (43) is provided at the second end of the support body (41) far from the second side surface (102). When the body (1) is bent, the card slot (43) on the support column (4) can be snap-fitted with the card slot (43) on another support column (4).

5. The cloud frozen fresh-keeping bag according to claim 2, characterized in that, A support column array is provided on the first side surface (101) of the body (1). The support column array includes: multiple columns of support column groups arranged at intervals along the first direction O1 / second direction O2 of the body (1). Each support column (4) in the support column group includes: a support body (41) with a first end fixedly connected to the first side surface (101), and a card slot (43) is provided at the second end of the support body (41) far from the second side surface (102). When multiple cloud frozen fresh-keeping bags are stacked, the card slot (43) on at least one of the support columns (4) on the cloud frozen fresh-keeping bag located below can be snap-fitted with the card slot (43) on at least one of the support columns (4) on the cloud frozen fresh-keeping bag located above.

6. The cloud freezing fresh-keeping bag according to claim 4 or 5, characterized in that, Three clamping blocks (42) are provided at the second end of the support body (41), and the three clamping blocks (42) and the second end of the support body (41) enclose to form the card slot (43) with a top opening and a side opening.

7. The cloud frozen fresh-keeping bag according to claim 6, characterized in that, The three clamping blocks (42) are arranged in a triangular pattern.

8. The cloud frozen fresh-keeping bag according to claim 1, characterized in that, The body (1) is made of a biodegradable material.

9. The cloud freezing fresh-keeping bag according to claim 8, characterized in that, The biodegradable material includes straw.

10. The cloud frozen fresh-keeping bag according to claim 1, characterized in that, An NFC chip is provided on the body (1).

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