Dry ice insulation progressive loss structure and cell transport preservation container
By using a partition structure and movable partition design, the problem of reduced insulation effect caused by dry ice sublimation is solved, achieving uniform consumption of dry ice within the dry ice layer and long-term insulation of items, making it suitable for cell transport and preservation containers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FANTASTIC MAOXIA PET (SHANGHAI) CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-07
AI Technical Summary
As dry ice sublimates, its volume shrinks, which reduces the insulation effect of the upper part of the insulated box, exposes the stored items inside, and makes it difficult to meet the requirements for long-term insulation.
The dry ice layer is divided into multiple layers by a partition structure. The partition design allows the dry ice to be consumed layer by layer and sublimated from the outside to the inside. Low thermal conductivity materials are used to extend the heat preservation time of the dry ice layer. The distribution of dry ice is stabilized by movable partitions and a grid structure.
It achieves uniform consumption of dry ice within the dry ice layer, extends the insulation time of internal items, avoids the decrease in insulation effect caused by dry ice accumulation, and ensures long-term preservation of items at -78℃.
Smart Images
Figure CN224466419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal insulation structures, specifically to a dry ice thermal insulation progressive loss structure and a cell transport and preservation container. Background Technology
[0002] At -78 degrees Celsius, dry ice can rapidly sublimate and absorb heat from the surrounding environment, causing the air temperature to drop rapidly, thus achieving a refrigeration effect. This makes it an ideal refrigerant, widely used in refrigeration, preservation, and transportation.
[0003] Patent document CN106689348A discloses a modified atmosphere transport and preservation method for fruits and vegetables using dry ice. The method involves sorting and classifying harvested fruits and vegetables, then placing them in a modified atmosphere storage bag. Dry ice is then placed inside the dry ice layer of the bag, which is quickly sealed and then packed into a conventional foam box for transport. The modified atmosphere storage bag consists of a fruit and vegetable layer and a dry ice layer, which are heat-sealed together to prevent direct contact between the fruits / vegetables and the dry ice. Ventilation holes are provided at the connection point for gas exchange between the two layers.
[0004] However, as a solid, dry ice continuously shrinks in volume during sublimation, accumulating at the bottom of the dry ice layer until it is completely sublimated. This reduces the insulation effect of the upper part of the insulated box, and the upper part of the stored items will be exposed outside the dry ice, making it difficult to meet the insulation time requirements for the stored items. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a dry ice insulation progressive loss structure and a cell transport and preservation container.
[0006] According to the present invention, a dry ice insulation progressive loss structure includes: outer packaging, partition, dry ice, and inner packaging;
[0007] The inner packaging is located inside the outer packaging, and the partition connects the outer packaging and the inner packaging, dividing the internal space of the outer packaging into at least the following sections:
[0008] A first dry ice layer located between the partition and the inner wall of the outer packaging; and,
[0009] A second dry ice layer is located between the inner packaging and the partition;
[0010] The first dry ice layer completely surrounds the second dry ice layer, and the dry ice fills the space between the first dry ice layer and the second dry ice layer.
[0011] Furthermore, the partition includes: a top partition, a bottom partition, and a ring-shaped partition;
[0012] The annular partition has a grid-shaped columnar structure. The portion of the annular partition extending outwards is supported on the inner wall of the outer packaging. The inner packaging is placed in the columnar space in the middle of the annular partition.
[0013] The bottom partition is movably connected to the bottom of the columnar space, and the top partition is movably connected to the top of the columnar space.
[0014] Furthermore, at least one side of the inner and / or outer side of the partition is provided with grid-like outwardly extending compartments, each compartment being filled with dry ice.
[0015] Furthermore, a top partition is movably connected between the second dry ice layer and the top partition, and a bottom partition is movably connected between the second dry ice layer and the bottom partition, for separating the first dry ice layer and the second dry ice layer.
[0016] Furthermore, there are multiple partitions, with a grid between adjacent partitions, and each grid space is filled with dry ice.
[0017] Furthermore, the thermal conductivity of the partition is lower than a preset value.
[0018] Furthermore, the inner packaging includes the insulated item and dry ice surrounding the insulated item.
[0019] Furthermore, the dry ice is in the form of powder, granules, rods, or blocks.
[0020] Furthermore, the outer packaging includes a box body and a box lid, with one side of the box body open and the box lid detachably connected to the open side of the box body.
[0021] Furthermore, there are multiple partitions of different sizes, which are nested and surrounded in order from smallest to largest. There is an intermediate dry ice layer between two adjacent partitions, and the intermediate dry ice layer is filled with dry ice.
[0022] The present invention provides a cell transport and preservation container, including the aforementioned dry ice insulation progressive loss structure.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] This invention, through the design of a partition structure, ensures that the dry ice in the first dry ice layer sublimates and is consumed before the dry ice in the second dry ice layer, thus achieving a state of consumption layer by layer from the outside to the inside. This allows the dry ice in the second dry ice layer to remain compact for a longer period of time, ensuring that the items stored inside can be kept encased inside the dry ice without being exposed for a longer period of time. Attached Figure Description
[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0026] Figure 1 This is a cross-sectional view of Embodiment 1 of the present invention;
[0027] Figure 2 This is an exploded view of Embodiment 1 of this utility model;
[0028] Figure 3 This is a partial cross-sectional view of Embodiment 1 of the present invention;
[0029] Figure 4 This is a cross-sectional view of Embodiment 2 of the present invention;
[0030] Figure 5 This is a schematic diagram of the internal dry ice consumption process of this utility model. Detailed Implementation
[0031] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.
[0032] Example 1
[0033] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a dry ice insulation progressive loss structure, including: outer packaging 1, partition 2, dry ice 3 and inner packaging 4.
[0034] The inner packaging 4 is located inside the outer packaging 1. A partition 2 connects the outer packaging 1 and the inner packaging 4, dividing the internal space of the outer packaging 1 into a first dry ice layer located between the partition 2 and the inner wall of the outer packaging 1, and a second dry ice layer located between the inner packaging 4 and the partition 2. Preferably, the first dry ice layer completely surrounds the second dry ice layer, and dry ice 3 fills both the first and second dry ice layers. In other embodiments, the first dry ice layer may simply surround the second dry ice layer in four directions (front, back, left, and right), or it may surround the second dry ice layer in five directions (front, back, left, right, top, or bottom). This invention does not limit this.
[0035] Dry ice 3 can be in powder, granule, rod, or block form, preferably in powder or granule form, which facilitates filling and minimizes the gaps within the dry ice layer after filling.
[0036] The outer packaging 1 includes a box body and a box lid. The top of the box body is open, and the box lid is detachably connected to the top of the box body to facilitate the filling of dry ice and the placement and removal of the inner packaging 4.
[0037] In addition, partition 2 includes: a top partition 21, a bottom partition 22, and an annular partition 23. The annular partition 23 has a grid-like columnar structure, with the portion extending outwards supported on the inner wall of the outer packaging 1. The inner packaging 4 is placed in the columnar space in the middle of the annular partition 23. The bottom partition 22 is movably connected to the bottom of the columnar space, and the top partition 21 is movably connected to the top of the columnar space. The top partition 21 and the bottom partition 22 have a grid-like structure. A top partition 24 is movably connected between the second dry ice layer and the top partition 21, and a bottom partition 25 is movably connected between the second dry ice layer and the bottom partition 22, used to separate the first dry ice layer and the second dry ice layer. This is done so that the inner packaging 4 can be removed by taking out the top partition 21 and the top partition 24. Partition 2 uses insulating material with a thermal conductivity lower than a preset value. Thus, the dry ice in the first dry ice layer will sublimate and be consumed before the second dry ice layer. Figure 5 As shown.
[0038] Preferably, the dimensions of the top partition 21, bottom partition 22, top partition 24, and bottom partition 25 are adapted to the columnar space in the middle of the annular partition 23, meaning they fit against the inner wall of the columnar space while being able to move vertically. Since the volume of dry ice gradually decreases during sublimation, the height of the dry ice in the second dry ice layer gradually decreases, creating a space without dry ice protection between the top partition 21 and the dry ice in the second dry ice layer, which is detrimental to the insulation of the items inside the inner packaging 4. However, through the movable partition design, the top partition 24 descends as the height of the dry ice in the second dry ice layer decreases, always supporting the upper part of the dry ice in the second dry ice layer, avoiding a large space without dry ice protection, and extending the insulation time of the inner packaging 4 within the second dry ice layer.
[0039] In other embodiments, the inner and / or outer sides of the partition 2 are provided with grid-like outward-extending compartments 5, dividing the first dry ice layer and / or the second dry ice layer into multiple grid spaces. Each compartment 5 is filled with dry ice 3. In this way, even if the dry ice sublimates and its volume decreases, forming gaps, the dry ice at the top will be confined within the grid space and evenly distributed at various positions on the outer side of the inner dry ice layer. This prevents the dry ice from accumulating at the bottom after sublimation and shrinking. It also avoids the problem of dry ice accumulating on the left or right side due to movement during transportation.
[0040] Meanwhile, the inner packaging 4 includes the insulated item and dry ice 3 surrounding the insulated item. Under the protection of the first and second dry ice layers, the dry ice in the inner packaging 4 can be prevented from being consumed prematurely, thus extending the insulation time.
[0041] Example 2
[0042] like Figure 4 As shown, based on Embodiment 1, there are multiple partitions 2 of varying sizes, nested sequentially from smallest to largest. A dry ice layer exists between adjacent partitions 2, and this dry ice layer is also filled with dry ice 3. This further extends the insulation time, but the present invention does not limit the number of partitions. Preferably, the space between adjacent partitions 2 can also be divided into compartments 5, which are also divided into multiple grid spaces. Each compartment 5 is filled with dry ice 3, achieving a multi-layered protection structure from the outside in.
[0043] The dry ice insulation progressive loss structure provided by this invention can be applied to cell transport and preservation containers, ensuring that cells can be preserved at -78°C for a longer period of time.
[0044] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0045] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.
Claims
1. A dry ice insulation progressive loss structure, characterized in that, include: Outer packaging (1), partition (2), dry ice (3) and inner packaging (4); The inner packaging (4) is located inside the outer packaging (1), and the partition (2) connects the outer packaging (1) and the inner packaging (4), dividing the internal space of the outer packaging (1) into at least the following: A first dry ice layer is located between the partition (2) and the inner wall of the outer packaging (1); and, A second dry ice layer located between the inner packaging (4) and the partition (2); The first dry ice layer completely surrounds the second dry ice layer, and the dry ice (3) fills the first dry ice layer and the second dry ice layer; At least one side of the inner and / or outer side of the partition (2) is provided with grid-like outwardly extending compartments (5), each compartment being filled with dry ice (3).
2. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The partition (2) includes: a top partition (21), a bottom partition (22), and a ring partition (23); The annular partition (23) has a grid-shaped columnar structure. The portion of the annular partition (23) extending to the surrounding area is supported on the inner wall of the outer packaging (1). The inner packaging (4) is placed in the columnar space in the middle of the annular partition (23). The bottom partition (22) is movably connected to the bottom of the columnar space, and the top partition (21) is movably connected to the top of the columnar space.
3. The dry ice insulation progressive loss structure according to claim 2, characterized in that, A top partition (24) is movably connected between the second dry ice layer and the top partition (21), and a bottom partition (25) is movably connected between the second dry ice layer and the bottom partition (22) to separate the first dry ice layer and the second dry ice layer.
4. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The number of partitions (2) is multiple, and the compartments (5) are provided between two adjacent partitions, and each compartment (5) is filled with dry ice (3).
5. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The inner packaging (4) includes the insulated item and dry ice (3) surrounding the insulated item.
6. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The dry ice (3) is in the form of powder, granules, rods or blocks.
7. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The outer packaging (1) includes a box body and a box lid, one side of the box body is open, and the box lid is detachably connected to the open side of the box body.
8. The dry ice insulation progressive loss structure according to claim 1, characterized in that, The number of partitions (2) is multiple, the multiple partitions (2) are of different sizes, the multiple partitions are nested and surrounded in order from small to large, there is an intermediate dry ice layer between two adjacent partitions (2), and the intermediate dry ice layer is filled with dry ice (3).
9. A cell transport and preservation container, characterized in that, Includes the dry ice insulation progressive loss structure as described in any one of claims 1-8.