CN219008401U - Cold chain insulation can - Google Patents

Abstract

The utility model discloses a cold chain insulation can, relates to the technical field of refrigeration equipment, and solves the technical problems of high heat transfer speed and poor cold insulation effect of the insulation can in the prior art when cold insulation is performed. The utility model discloses a cold chain insulation can, which comprises an insulation can body, wherein the insulation can body is provided with an insulation layer and a cold source medium layer, the insulation layer is arranged on the outer side of the cold source medium layer, a cold source cylinder is arranged in an inner cavity of the insulation can body, a first cold source cavity for placing a cold source medium is arranged in the cold source cylinder, and a refrigerating space for containing articles is formed between the cold source cylinder and the cold source medium layer. According to the cold chain insulation box, the internal cold source is separated from the external environment, and the medium for heat dissipation of the internal cold source is mainly the almost static air in the insulation box, so that the influence of convection heat exchange on the internal cold source is reduced, and the cold insulation time is prolonged.

Description

Cold chain insulation can

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a cold chain insulation can.

Background

The seafood products are taken as an indispensable part of the dietary structure of people, a great deal of demands are always kept, wherein the freshness is taken as an important index for measuring the quality of the seafood products, the seafood with poor eating freshness can influence the health of human bodies besides influencing the eating taste, the life health of the human bodies can be threatened directly in serious cases, and the requirements on how to prolong the freshness of the seafood in the transportation process are raised for the transportation environment. The cold chain incubator is widely applied to various aspects such as takeaway, logistics and the like as a refrigerating storage device, and crabs serving as seafood products are often loaded in the cold chain incubator to keep fresh in the cold chain transportation process.

The cold chain incubator usually adopts the refrigeration mode of ice bank, ice chest, and the cold accumulation ice bank or the ice chest in the case absorb heat and resist the heat that outside transmitted into the case, makes the incasement temperature constantly in a scope. The convection heat exchange of the cold chain incubator is a relatively complex energy quality exchange process, one of the important factors influencing the convection heat exchange is the state of fluid, and the fluid in a turbulent state has a larger heat exchange coefficient than the fluid in a laminar state, because the disturbance is strong when the fluid flow velocity is high, so that the heat exchange is enhanced.

In the prior art, a cold source is provided in a box body through semiconductor refrigeration, but the refrigeration equipment needs to be kept in an electrified state, and the refrigeration mode is difficult to meet the stock requirement of moving and transporting refrigerated goods. The prior art discloses a portable insulation can: comprises a box body and a box cover; the inside of the box body is hollow, the top of the box body is provided with an opening, a partition plate is arranged in the box body, and the partition plate is used for forming a containing cavity and a heat preservation cavity which are arranged in an up-down opposite mode in the box body; the box cover is covered on the opening of the box body, and PU foaming heat insulation layers are filled between the outer shell and the inner container of the box body and between the outer shell and the inner container of the box cover; the bottom of box still is equipped with the water injection hole, the water injection hole with the heat preservation chamber intercommunication, just be equipped with the cock cap on the water injection hole, the cock cap is used for sealing the water injection hole. When the articles are required to be frozen and preserved, the partition plate can be taken out, ice cubes are placed in the heat preservation cavity, then the partition plate is placed in the box body, and the articles which need to be preserved are placed in the containing cavity, so that the preservation is realized rapidly. But the bottom side in heat preservation chamber is direct with outside air contact, and the heat transfer is realized to the interior and exterior both sides of heat preservation intracavity ice-cube and outside air in the handling respectively at box bottom plate, and heat transfer coefficient is big, and heat transfer rate is fast, and the ice-cube in the heat preservation chamber melts easily, leads to cold insulation effect poor, is difficult to satisfy article long-time refrigerated transport's demand.

Disclosure of Invention

The utility model aims to provide a cold chain insulation box, which solves the technical problems of high heat transfer speed and poor cold insulation effect of the insulation box in the prior art during cold insulation. The technical effects that can be produced by the preferred technical scheme of the present utility model are described in detail below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model discloses a cold chain insulation can, which comprises an insulation can body, wherein the insulation can body is provided with an insulation layer and a cold source medium layer, the insulation layer is arranged on the outer side of the cold source medium layer, a cold source cylinder is arranged in an inner cavity of the insulation can body, a first cold source cavity for placing a cold source medium is arranged in the cold source cylinder, and a refrigerating space for containing articles is formed between the cold source cylinder and the cold source medium layer.

According to a preferred embodiment, a supporting connector is further arranged in the heat insulation box body, the supporting connector is arranged at the bottom of the heat insulation box body, a plurality of placing cavities are formed by separating the bottom space of the heat insulation box body, and the cold source cylinder is arranged at the upper side of the supporting connector.

According to a preferred embodiment, the cold source medium layer comprises an inner casing, wherein the inner casing has a double-layer structure and forms a second cold source cavity for accommodating the cold source medium between the double-layer structure.

According to a preferred embodiment, the support connection body has a double-layer structure and forms a third cold source chamber for accommodating a cold source medium between the double-layer structure.

According to a preferred embodiment, the side surface and the bottom surface of the support connector are respectively connected with the side wall and the bottom plate of the inner shell, and the top surface of the support connector is connected with the bottom surface of the cold source cylinder and enables the first cold source cavity, the third cold source cavity and the second cold source cavity to be communicated.

According to a preferred embodiment, the support connector comprises a plurality of vertically arranged sandwich plates, one sides of the plurality of sandwich plates are connected with the side wall of the inner shell, the other sides of the plurality of sandwich plates are connected with the inner center of the insulation box, the bottom space of the insulation box is divided by the plurality of sandwich plates to form a plurality of placing cavities with equal size, and the inner cavities of the plurality of sandwich plates are communicated with each other to form the third cold source cavity.

According to a preferred embodiment, the cold source cylinder is arranged on the upper side of the central connection of the plurality of sandwich plates and is arranged with the connection as the center of the cold source cylinder bottom plate.

According to a preferred embodiment, a plurality of strip-shaped holes which are oppositely connected with the top edges of the plurality of sandwich plates are formed in the bottom plate of the cold source cylinder, the strip-shaped holes extend from the center of the bottom plate of the cold source cylinder to the side of the bottom plate of the cold source cylinder, and a first cold source cavity in the cold source cylinder is communicated with the third cold source cavity through the strip-shaped holes.

According to a preferred embodiment, the top end of the cold source cylinder is provided with an inner opening communicated with the first cold source cavity, the top end of the inner shell is provided with an outer opening communicated with the second cold source cavity, the outer opening is arranged along the periphery of the inner shell, and cold source media are added into the first cold source cavity, the second cold source cavity and the third cold source cavity through the inner opening and/or the outer opening.

According to a preferred embodiment, the heat insulation box further comprises a top cover heat insulation plate, an upper opening is formed in the heat insulation box, and the top cover heat insulation plate is arranged at the upper opening of the heat insulation box in a sealing mode.

According to a preferred embodiment, the downside of the top cover heat preservation board is provided with a first sealing ring for sealing the heat preservation, a second sealing ring for sealing an outer opening on the inner shell and a sealing plug for sealing an inner opening on the cold source cylinder, the first sealing ring and the second sealing ring are arranged along the edge of the top cover heat preservation board, and the sealing plug is arranged in the middle of the top cover heat preservation board.

According to a preferred embodiment, the side of the top cover heat-insulating plate is provided with buckles which are symmetrically arranged, the upper side of the heat-insulating box body is provided with hooks which are matched with the buckles, and the top cover heat-insulating plate is clamped on the hooks through the buckles to be connected with the heat-insulating box body.

The cold chain insulation box provided by the utility model has at least the following beneficial technical effects:

according to the cold chain insulation box, the cold source medium layer is arranged on the outer side of the insulation box body and is used as an outer side cold source, and the cold source cylinder is arranged in the inner cavity of the insulation box body and is used as an inner cold source, so that the inner cold source is separated from the external environment, heat dissipation mediums of the inner cold source are mainly air almost static in the insulation box body, the distribution design of the inner cold source and the outer side cold source can reduce the fluid heat exchange coefficient according to a convection heat exchange process mechanism, the heat exchange degree in the convection heat exchange process is reduced, and the cold insulation time is prolonged. And the cold source medium layer makes the insulation box body inner chamber keep lower temperature, and the outside temperature of cold source cylinder is lower, reduces the difference in temperature of the inside and outside both sides of cold source cylinder, further reduces the heat transfer rate of the inside and outside both sides of cold source cylinder, prolongs the cold insulation time of cold chain insulation box of this embodiment simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of a cold chain incubator of the present utility model;

FIG. 2 is a schematic view of the internal structure of the incubator of the present utility model;

FIG. 3 is a top view of the incubator of the present utility model;

FIG. 4 is a front view of the top cover insulation panel of the present utility model;

fig. 5 is a bottom view of the top cover insulation board of the present utility model.

In the figure: 1. a top cover insulation board; 11. a sealing plug; 12. a first seal ring; 13. a second seal ring; 14. a buckle; 2. a thermal insulation box body; 21. a heat preservation layer; 22. a cold source medium layer; 221. an inner housing; 222. a second cold source cavity; 223. an outer opening; 23. a hook; 24. a placement cavity; 3. a support connector; 31. a sandwich panel; 32. a third cold source cavity; 4. a cold source cylinder; 41. a first cold source cavity; 42. a bar-shaped hole; 43. an inner opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The cold chain incubator of the present utility model will be described in detail with reference to fig. 1 to 5 of the accompanying drawings and examples.

The embodiment provides a preferable structure of the cold chain incubator.

The cold chain insulation can of this embodiment, including insulation can body 2, insulation can body 2 is provided with heat preservation 21 and cold source medium layer 22, and heat preservation 21 sets up in cold source medium layer 22's the outside, is provided with cold source cylinder 4 in insulation can body 2's inner chamber, is provided with the first cold source chamber 41 that is used for placing cold source medium in the cold source cylinder 4, forms the cold storage space that is used for holding article between cold source cylinder 4 and cold source medium layer 22. Preferably, the heat-insulating layer 21 is a foam layer, a foaming layer or other heat-insulating material layer, and the specific choice can be adjusted according to practical situations. The cold source medium is ice cubes or ice crystals, etc.

The cold chain insulation can in this embodiment is through setting up cold source medium layer 22 as the basis of outside cold source in insulation can 2 periphery, set up cold source cylinder 4 as inside cold source in insulation can 2's inner chamber, make inside cold source and external environment cut off, inside cold source radiating medium is almost stationary air in the insulation can 2 mainly, according to convection heat transfer process mechanism, the distribution design of inside cold source and outside cold source in this embodiment can reduce fluid heat transfer coefficient, reduce the heat exchange degree in the convection heat transfer process, reduce the influence of convection heat transfer to inside cold source, the cold retention time is prolonged. And the cold source medium layer 22 keeps the inner cavity of the heat insulation box body 2 at a lower temperature, the outer side temperature of the cold source cylinder 4 is lower, the temperature difference between the inner side and the outer side of the cold source cylinder 4 is reduced, the heat transfer rate of the inner side and the outer side of the cold source cylinder 4 is further reduced, the cold insulation time of the cold source cylinder 4 is prolonged, and meanwhile, the cold insulation time of the cold chain heat insulation box of the embodiment is prolonged. When the crabs are placed in the refrigerating space between the cold source cylinder 4 and the cold source medium layer 22 in the crab transporting process, the crabs are in a syncope state, a proper environment is provided for the survival of the crabs, the survival time and the survival rate of the crabs in the crab transporting process are prolonged, and the cost loss caused by transportation is reduced.

According to a preferred embodiment, as shown in fig. 2 and 3, a support connector 3 is further disposed in the insulation box 2, the support connector 3 is disposed at the bottom of the insulation box 2 and separates the bottom space of the insulation box 2 to form a plurality of placement cavities 24, and the cold source cylinder 4 is disposed on the upper side of the support connector 3.

The placing cavity in this embodiment is used for holding refrigerated goods, and the support connector 3 plays the effect of supporting cold source cylinder 4 on one hand, makes cold source cylinder 4 and avoid with cold source medium layer 22 direct contact, reduces the contact heat transfer, prolongs the time of keeping cold, and on the other hand supports connector 3 and separates the bottom space of insulation box 2 and forms a plurality of placing cavity 24, and a plurality of placing cavity 24 can be convenient for make refrigerated goods sort and deposit.

According to a preferred embodiment, as shown in fig. 2, the cold source medium layer 22 includes an inner case 221, and the inner case 221 has a double-layered structure and forms a second cold source chamber 222 for accommodating a cold source medium therebetween. The cold source medium layer 22 is arranged on the inner side of the heat preservation layer 21 in a clinging way, and the heat preservation layer 21 and the cold source medium layer 22 are both provided with a bottom plate and side walls which are vertically arranged along the periphery of the bottom plate. The inner side plate of the inner case 221 is made of a plate material with good thermal conductivity, such as an aluminum plate, so as to transfer heat to the inner cavity of the insulation box 2, and refrigerate the inner cavity of the insulation box 2.

According to a preferred embodiment, as shown in fig. 3, the support link 3 has a double-layered structure and a third heat sink chamber 32 for receiving a heat sink medium is formed between the double-layered structure. The third heat sink chamber 32 of the support connector 3 can be used for accommodating heat sink medium, thereby refrigerating the plurality of accommodating chambers 24.

According to a preferred embodiment, as shown in fig. 2 and 3, the side and bottom surfaces of the support link body 3 are respectively connected to the side wall and the bottom plate of the inner case 221, and the top surface of the support link body 3 is connected to the bottom surface of the cold source cylinder 4 and communicates the first, third and second cold source chambers 41, 32 and 222 to facilitate the addition of the cold source medium into the first, third and second cold source chambers 41, 32 and 222.

According to a preferred embodiment, the support connection body 3 comprises a plurality of vertically arranged sandwich plates 31, one side of the plurality of sandwich plates 31 being connected with the side wall of the inner housing 221 and the other side being connected with each other at the inner center of the insulation box 2. The bottom space of the insulation box body 2 is divided into a plurality of placing cavities 24 with the same size by the plurality of sandwich plates 31, and inner cavities are arranged in the plurality of sandwich plates 31 and are communicated to form a third cold source cavity 32. As shown in fig. 3, preferably, the sandwich plate 31 is provided with four, and the four sandwich plates 31 are vertically connected in sequence to partition the bottom space of the insulation box 2 into four placing cavities 24 with equal size. The plurality of sandwich plates 31 are uniformly distributed at the bottom of the insulation box body 2 and can uniformly refrigerate the plurality of placing cavities 24, so that the plurality of placing cavities 24 have uniform refrigerating effect.

According to a preferred embodiment, the heat sink cylinder 4 is disposed on the upper side of the center connection of the plurality of sandwich plates 31 and is disposed with the connection being the center of the bottom plate of the heat sink cylinder 4. The cold source cylinder 4 is arranged in the middle of the support connecting body 3, so that the support connecting body 3 has a good support effect on the cold source cylinder 4.

According to a preferred embodiment, a plurality of strip-shaped holes 42 are provided in the bottom plate of the cold source cylinder 4, which are connected to the top edges of the plurality of sandwich plates 31 in opposition, the plurality of strip-shaped holes 42 being provided extending from the center of the bottom plate of the cold source cylinder to the side of the bottom plate of the cold source cylinder, and the first cold source chamber 41 in the cold source cylinder 4 communicates with the third cold source chamber 32 through the strip-shaped holes 42. Preferably, the strip-shaped holes 42 are open structures provided at the top of the sandwich panel 31. Preferably, the cold source cylinder 4 is cylindrical. The cold source cylinder 4 can uniformly refrigerate the inside of the heat preservation box body 2. The cold source medium in the first cold source chamber 41 may be fed into the third cold source chamber 32 through a plurality of strip holes 42.

According to a preferred embodiment, the top end of the cold source cylinder 4 is provided with an inner opening 43 communicating with the first cold source chamber 41, the top end of the inner case 221 is provided with an outer opening 223 communicating with the second cold source chamber 222, the outer opening 223 is provided along a circumference of the inner case 221, and the cold source medium is introduced into the first, second and third cold source chambers 41, 222 and 32 through the inner opening 43 and/or the outer opening 223.

When cold water is added to the first, second and third cold source chambers 41, 222 and 32, the cold water may be added through the inner opening 43 or the outer opening 223, with the liquid levels being maintained parallel in the first and second cold source chambers 41 and 222. When ice cubes or ice crystals are added into the first, second and third cold source chambers 41, 222 and 32, the ice cubes or ice crystals can be simultaneously put in through the inner opening 43 and the outer opening 223, and the cold source medium can be uniformly filled into the first, second and third cold source chambers 41, 222 and 32 in a manual vibration mode. Different cold source mediums can be selectively put into the first cold source cavity 41, the second cold source cavity 222 and the third cold source cavity 32 according to the refrigerating temperature requirement and the position arrangement requirement of the refrigerated goods.

According to a preferred embodiment, the cold chain insulation can of this embodiment further comprises a top cover insulation board 1, an upper opening is arranged on the insulation can body 2, and the top cover insulation board 1 is arranged at the upper opening of the insulation can body 2 in a sealing manner. When the top cover heat insulation board 1 is opened, cold source media are conveniently added, and refrigerated articles are also conveniently put into the heat insulation box body 2. The top cover heat insulation board 1 is sealed at the upper opening of the heat insulation box body 2, so that the cold chain heat insulation box has a good cold insulation effect in the transportation process.

According to a preferred embodiment, as shown in fig. 4 and 5, the underside of the top cover insulation board 1 is provided with a first sealing ring 12 for sealing the insulation layer 21, a second sealing ring 13 for sealing the outer opening 223 on the inner housing 221 and a sealing plug 11 for sealing the inner opening 43 on the cold source cylinder 4. The first sealing ring 12 and the second sealing ring 13 are arranged along the edge of the top cover heat insulation plate 1, and the sealing plug 11 is arranged in the middle of the top cover heat insulation plate 1. The first sealing ring 12, the second sealing ring 13 and the sealing plug 11 are made of rubber materials, and have good elasticity and sealing performance. As shown in fig. 1 and 2, preferably, the top surface of the cold source cylinder 4 is smaller than the top surface of the insulation box 2, the sealing plug 11 has an inverted conical structure, and the sealing plug 11 is blocked at the inner opening 43 on the cold source cylinder 4, so that a good sealing effect is achieved. The second gasket 13 is blocked on the outer opening 223 on the inner housing 221. The top cover heat insulation board 1 is in sealing connection with the heat insulation box body in a layer-by-layer sealing mode, so that the sealing effect of the cold chain heat insulation box of the embodiment is further guaranteed.

According to a preferred embodiment, as shown in fig. 4 and 5, the side edge of the top cover insulation board 1 is provided with a buckle 14 which is symmetrically arranged, the upper side of the insulation box 2 is provided with a hook 23 which is matched with the buckle 14, and the top cover insulation board 1 is connected with the insulation box 2 by being clamped on the hook 23 through the buckle 14, so that the connection is convenient and firm, and the sealing performance is good.

In the process of transporting crabs, in order to enable the crabs to be in a syncope state, firstly, substances such as cold source media, such as ice or ice crystals, are put in through the inner opening 43 and/or the outer opening 223, the cold source media are uniformly filled in a manual vibration mode, the first cold source cavity 41, the third cold source cavity 32 and the second cold source cavity 222 are horizontally placed in a placing cavity 24 formed by surrounding the cold source media layer 22 and the supporting connection body 3, and the crabs are placed in an upright placing mode around the cold source column 4. Then detain top cap heated board 1 in the upper shed department of insulation can 2, be connected top cap heated board 1 and insulation can 2 on trip 23 through buckle 14 card, the top of heat preservation 21 is sealed respectively to first sealing washer 12, second sealing washer 13 and sealing plug 11 of top cap heated board 1 downside, outer opening 223 on the inner shell 221 and the interior opening 43 on sealed cold source cylinder 4, realize the sealed save of cold source medium, prevent cold source medium from revealing for crab living body and cold source medium separate and deposit.

Under the condition of no mobile transportation requirement, the cold chain incubator can be used as a short-term incubator through external equipment, and the specific use method is to fix external oxygen generating equipment at the periphery of the cold source cylinder 4, wherein the oxygen generating equipment is available on the market and can be directly selected for use. Proper amount of water is put into the inner cavity of the heat preservation box body 2, a proper amount of cold source is put into the cold source medium cavity according to the proper growth environment temperature of different crab types, the heat preservation box can be used as a short-term crab culture box, and the cold chain heat preservation box is convenient to convert and high in practicality.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (12)

1. The utility model provides a cold chain insulation can, its characterized in that, includes insulation can body (2), insulation can body (2) is provided with heat preservation (21) and cold source medium layer (22), heat preservation (21) set up in the outside of cold source medium layer (22) be provided with cold source cylinder (4) in the inner chamber of insulation can body (2), be provided with in cold source cylinder (4) and be used for placing cold source medium first cold source chamber (41) cold source cylinder (4) with form the cold storage space that is used for holding article between cold source medium layer (22).

2. The cold chain incubator according to claim 1, wherein a supporting connector (3) is further disposed in the incubator body (2), the supporting connector (3) is disposed at the bottom of the incubator body (2) and separates the bottom space of the incubator body (2) to form a plurality of placement cavities (24), and the cold source cylinder (4) is disposed at the upper side of the supporting connector (3).

3. Cold chain incubator according to claim 2, characterized in that the cold source medium layer (22) comprises an inner housing (221), the inner housing (221) being of a double-layer structure and forming a second cold source chamber (222) between the double-layer structure for accommodating the cold source medium.

4. A cold chain incubator according to claim 3, characterized in that the support connection body (3) has a double-layer structure and a third cold source chamber (32) for accommodating a cold source medium is formed between the double-layer structures.

5. The cold chain incubator according to claim 4, wherein the side and bottom surfaces of the support connector (3) are respectively connected to the side wall and the bottom plate of the inner case (221), and the top surface of the support connector (3) is connected to the bottom surface of the cold source cylinder (4) and communicates the first cold source chamber (41), the third cold source chamber (32) and the second cold source chamber (222).

6. The cold chain incubator according to claim 5, wherein the support connector (3) comprises a plurality of vertically arranged sandwich plates (31), one sides of the plurality of sandwich plates (31) are connected with the side wall of the inner shell (221) and the other sides of the plurality of sandwich plates are mutually connected to the inner center of the incubator body (2), the plurality of sandwich plates (31) divide the bottom space of the incubator body (2) to form a plurality of placing cavities (24) with equal size, and the plurality of sandwich plates (31) are internally provided with inner cavities which are communicated and form the third cold source cavity (32).

7. Cold chain incubator according to claim 6, characterized in that the cold source cylinder (4) is arranged on the upper side of the central connection of the plurality of sandwich plates (31) and with this connection being the central arrangement of the bottom plate of the cold source cylinder (4).

8. The cold chain incubator according to claim 7, wherein a plurality of strip-shaped holes (42) which are connected with the top edges of the plurality of sandwich plates (31) in a relative manner are arranged on the bottom plate of the cold source cylinder (4), the plurality of strip-shaped holes (42) are arranged from the center of the bottom plate of the cold source cylinder to the side of the bottom plate of the cold source cylinder, and a first cold source cavity (41) in the cold source cylinder (4) is communicated with the third cold source cavity (32) through the strip-shaped holes (42).

9. Cold chain incubator according to claim 5, characterized in that the top end of the cold source cylinder (4) is provided with an inner opening (43) communicating with the first cold source chamber (41), the top end of the inner housing (221) is provided with an outer opening (223) communicating with the second cold source chamber (222), the outer opening (223) is arranged along the circumference of the inner housing (221), and cold source medium is added into the first cold source chamber (41), the second cold source chamber (222) and the third cold source chamber (32) through the inner opening (43) and/or the outer opening (223).

10. The cold chain incubator of claim 9, further comprising a top cover insulation board (1), wherein an upper opening is formed in the incubator body (2), and the top cover insulation board (1) is arranged at the upper opening of the incubator body (2) in a sealing manner.

11. Cold chain incubator according to claim 10, characterized in that the underside of the top cover insulation board (1) is provided with a first sealing ring (12) for sealing the insulation layer (21), a second sealing ring (13) for sealing the outer opening (223) on the inner housing (221) and a sealing plug (11) for sealing the inner opening (43) on the cold source cylinder (4), the first sealing ring (12) and the second sealing ring (13) being arranged along the edge of the top cover insulation board (1), the sealing plug (11) being arranged in the middle of the top cover insulation board (1).

12. Cold chain insulation can according to claim 10, characterized in that the side edge of the top cover insulation board (1) is provided with a buckle (14) which is symmetrically arranged, the upper side of the insulation can body (2) is provided with a clamping hook (23) which is matched with the buckle (14), and the top cover insulation board (1) is connected with the insulation can body (2) through the buckles (14) (23).

Images