Cold chain transportation heat preservation box

Abstract

The utility model discloses a cold chain transportation heat preservation box, and relates to the technical field of cold chain transportation. The cold chain transportation heat preservation box comprises a box body and a box cover, an opening is formed in the top of the box body, and the box cover is buckled on the opening; the box body comprises an inner container and a shell, the inner container comprises a first inner foaming layer, a first heat insulation layer and a first outer foaming layer which are sequentially arranged from inside to outside, and the shell comprises a first inner metal layer, a first honeycomb layer and a first outer metal layer which are sequentially arranged from inside to outside; the box cover comprises a second inner foaming layer, a second heat insulation layer, a second outer foaming layer, a second inner metal layer, a second honeycomb layer and a second outer metal layer which are sequentially arranged from inside to outside. The heat preservation performance is greatly improved, the strength is improved, and firmness and durability are achieved.

Description

Technical Field

[0001] This application relates to the technical field of cold chain transportation, and particularly to a cold chain transportation insulation box. Background Art

[0002] Cold chain transportation refers to the transportation in which, throughout the entire transportation process, whether it is in the links of loading, unloading, handling, changing the transportation mode, replacing packaging equipment, etc., the goods being transported are kept at a certain temperature; generally, the things being transported are fresh products, frozen foods, and pharmaceutical products. Since the products have few turnovers during the entire cold chain transportation process and the time is generally long, the heat insulation ability of the insulation box is the most important factor in ensuring the cold chain transportation effect. Currently, the common insulation boxes used for cold chain transportation can be divided into two categories. One category is non-powered, which minimizes heat transfer to keep the inside of the box at a low temperature. This type of insulation box generally uses foam plastic or multi-layer composite materials as the inner liner of the insulation layer. The other category is powered, which continuously provides a refrigeration effect through a compressor. For non-powered cold chain transportation insulation boxes, the heat insulation ability is limited and they are prone to deformation. Summary of the Utility Model

[0003] The embodiments of this application provide a cold chain transportation insulation box to solve the technical problems that the current non-powered cold chain transportation insulation boxes have limited heat insulation ability and are prone to deformation.

[0004] The embodiments of this application provide a cold chain transportation insulation box, which includes a box body and a box cover. An opening is provided at the top of the box body, and the box cover is buckled on the opening.

[0005] The box body includes an inner liner and an outer shell. The inner liner includes a first inner foam layer, a first heat insulation layer, and a first outer foam layer arranged in sequence from the inside to the outside. The outer shell includes a first inner metal layer, a first honeycomb layer, and a first outer metal layer arranged in sequence from the inside to the outside.

[0006] The box cover includes a second inner foam layer, a second heat insulation layer, a second outer foam layer, a second inner metal layer, a second honeycomb layer, and a second outer metal layer arranged in sequence from the inside to the outside.

[0007] Furthermore, the thickness of the first inner foam layer is equal to the thickness of the second inner foam layer, the thickness of the first heat insulation layer is equal to the thickness of the second heat insulation layer, the thickness of the first outer foam layer is equal to the thickness of the second outer foam layer, the thickness of the first inner metal layer is equal to the thickness of the second inner metal layer, the thickness of the first honeycomb layer is equal to the thickness of the second honeycomb layer, and the thickness of the first outer metal layer is equal to the thickness of the second outer metal layer.

[0008] Furthermore, the inner liner is sleeved inside the outer shell, and a gap is provided between the inner liner and the outer shell.

[0009] Furthermore, an inflatable interlayer is provided between the inner liner and the outer shell, and the gap is filled by injecting air into the inflatable interlayer.

[0010] Furthermore, the inner liner also includes a first anti-slip layer, which is located on the side of the first outer foam layer away from the first insulation layer; and / or the outer shell also includes a second anti-slip layer, which is located on the side of the first inner metal layer away from the first honeycomb layer; and / or the first anti-slip layer and the second anti-slip layer are made of polyurethane.

[0011] Furthermore, the inner liner also includes a first vacuum insulation panel, which is arranged in the first inner foam layer and / or the first outer foam layer; and / or the outer shell also includes a second vacuum insulation panel, which is arranged in the second honeycomb layer.

[0012] Furthermore, the outer shell also includes an inner protective layer, and the inner protective layer is arranged on a side of the first inner metal layer away from the first honeycomb layer.

[0013] Furthermore, the first thermal insulation layer and the second thermal insulation layer are made of aerogel, and the density of the aerogel is 0.12-0.2 mg / cm 2 The hydrophobicity of the aerogel is ≥90%, and the thermal conductivity of the aerogel at room temperature is 0.0016 to 0.022 W / (m·K).

[0014] Furthermore, the first inner foam layer, the first outer foam layer, the second inner foam layer and the second outer foam layer are made of foamed polyurethane; and / or the first honeycomb layer and the second honeycomb layer are made of polypropylene.

[0015] Furthermore, the opening is funnel-shaped, and the box cover includes a flat plate portion and a snap-fit ​​portion located on the lower surface of the flat plate portion, the snap-fit ​​portion is in an inverted trapezoidal shape, and the snap-fit ​​portion is snapped onto the opening; the snap-fit ​​portion includes a second inner foam layer, a second heat insulation layer, and a second outer foam layer arranged in sequence from the inside to the outside, and the flat plate portion includes a second inner metal layer, a second honeycomb layer, and a second outer metal layer arranged in sequence from the inside to the outside.

[0016] Compared with the existing insulation box solutions, the cold chain transport insulation box provided in the embodiment of the present application adopts a first insulation layer and a second insulation layer with very low thermal conductivity at room temperature, which can effectively suppress heat conduction, heat convection and heat radiation. The first inner foam layer, the first outer foam layer, the second inner foam layer and the second outer foam layer are combined to form a sandwich structure. The first insulation layer and the second insulation layer effectively increase the disadvantage of the first inner foam layer, the first outer foam layer, the second inner foam layer and the second outer foam layer in being weak in withstanding shear force, and the thermal insulation performance is greatly improved, the strength is improved, and it is more firm and durable. Brief Description of the Drawings

[0017] The following, in conjunction with the drawings, through a detailed description of the specific embodiments of the present application, will make the technical solutions and other beneficial effects of the present application obvious.

[0018] Figure 1 It is a schematic structural diagram of the cold chain transportation insulation box provided in Embodiment 1 of the present application.

[0019] Figure 2 It is a schematic structural diagram of the box body provided in Embodiment 1 of the present application.

[0020] Figure 3 It is a schematic structural diagram of the box cover provided in Embodiment 1 of the present application.

[0021] Figure 4 It is a schematic structural diagram of the cold chain transportation insulation box provided in Embodiment 2 of the present application.

[0022] Figure 5 It is a schematic structural diagram of the cold chain transportation insulation box provided in Embodiment 3 of the present application. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features.

[0025] The embodiments of the present application provide a cold chain transportation insulation box, and the cold chain transportation insulation box is a non-powered cold chain transportation insulation box.

[0026] Specifically, please refer to Figures 1 to 5, the cold chain transportation insulation box includes a box body A and a box cover B. An opening is provided at the top of the box body A, and the box cover B is buckled on the opening;

[0027] The box body A includes an inner liner 8 and an outer shell 9. The inner liner 8 includes a first inner foaming layer 1, a first heat insulation layer 2, and a first outer foaming layer 3 arranged in sequence from the inside to the outside. The outer shell 9 includes a first inner metal layer 4, a first honeycomb layer 5, and a first outer metal layer 6 arranged in sequence from the inside to the outside;

[0028] The box cover B includes a second inner foaming layer 1', a second heat insulation layer 2', a second outer foaming layer 3', a second inner metal layer 4', a second honeycomb layer 5', and a second outer metal layer 6' arranged in sequence from the inside to the outside.

[0029] Furthermore, the thickness of the first inner foaming layer 1 is equal to the thickness of the second inner foaming layer 1', the thickness of the first heat insulation layer 2 is equal to the thickness of the second heat insulation layer 2', the thickness of the first outer foaming layer 3 is equal to the thickness of the second outer foaming layer 3', the thickness of the first inner metal layer 4 is equal to the thickness of the second inner metal layer 4', the thickness of the first honeycomb layer 5 is equal to the thickness of the second honeycomb layer 5', and the thickness of the first outer metal layer 6 is equal to the thickness of the second outer metal layer 6'.

[0030] The second outer foaming layer 3' and the second inner metal layer 4' of the box cover B are integrally formed by in-mold injection molding; the second heat insulation layer 2' and the second outer foaming layer 3' are integrally formed by in-mold injection molding; the second inner foaming layer 1' and the second heat insulation layer 2' are integrally formed by in-mold injection molding. The advantage of the box cover B is that it is more firm and durable.

[0031] Furthermore, the inner liner 8 is sleeved inside the outer shell 9, and there is a gap between the inner liner 8 and the outer shell 9. The inner liner 8 and the outer shell 9 of the box body A are processed separately and placed together after being processed and formed, so a gap is formed in the middle.

[0032] The inner liner 8 and the outer shell 9 are processed separately. The inner liner 8 is composed of polyurethane and aerogel, and its structure is relatively fragile. The outer shell 9 is wrapped by a metal layer, and its structure is relatively strong. The advantage of separate processing is that the inner liner 8 is relatively easier to break than the outer shell 9. Only replacing the inner liner 8 can greatly reduce the cost. The processing technology of the inner liner 8 is integrally formed by in-mold injection molding, and its advantage is that it is more firm and durable.

[0033] Furthermore, an inflatable sandwich layer 7 is provided between the inner liner 8 and the outer shell 9, and the gap is filled by inflating air into the inflatable sandwich layer 7. The inflatable sandwich layer 7 can stably fix the inner liner 8 in the outer shell 9, improve the structural stability, enhance the strength, and be more firm and durable.

[0034] Furthermore, the inner container 8 further includes a first anti-slip layer, which is located on the side of the first outer foaming layer 3 away from the first heat insulation layer 2; and / or, the outer shell 9 further includes a second anti-slip layer, which is located on the side of the first inner metal layer 4 away from the first honeycomb layer 5; and / or, the materials of the first anti-slip layer and the second anti-slip layer are polyurethane. The first anti-slip layer and the second anti-slip layer are correspondingly arranged, which can stably fix the inner container 8 in the outer shell 9, improve the structural stability, enhance the strength, and make it more firm and durable.

[0035] Furthermore, the inner container 8 further includes a first vacuum heat insulation board, which is arranged in the first inner foaming layer 1 and / or the first outer foaming layer 3; and / or, the outer shell 9 further includes a second vacuum heat insulation board, which is arranged in the second honeycomb layer 5'. The first vacuum heat insulation board and the second vacuum heat insulation board can avoid rapid temperature drop and improve the heat preservation effect.

[0036] Furthermore, the outer shell 9 further includes an inner protective layer, which is arranged on the side of the first inner metal layer 4 away from the first honeycomb layer 5. The inner protective layer can isolate the first inner metal layer 4 from the inner container 8 and prevent the inner container 8 from being damaged by friction with the first inner metal layer 4.

[0037] Furthermore, the materials of the first heat insulation layer 2 and the second heat insulation layer 2' are aerogel, the density of the aerogel is 0.12 - 0.2 mg / cm 2 , the hydrophobic rate of the aerogel is ≥ 90%, and the normal temperature thermal conductivity of the aerogel is

[0038] 0.0016 - 0.022 W / (m·K), which can very well inhibit heat conduction, heat convection, and heat radiation.

[0039] Furthermore, the materials of the first inner foaming layer 1, the first outer foaming layer 3, the second inner foaming layer 1', and the second outer foaming layer 3' are foamed polyurethane; and / or, the materials of the first honeycomb layer 5 and the second honeycomb layer 5' are polypropylene. The first honeycomb layer 5 and the second honeycomb layer 5' can improve the heat preservation performance.

[0040] Further, the opening is funnel-shaped. The lid B includes a flat plate portion and a fastening portion located on the lower surface of the flat plate portion. The fastening portion is trapezoidal in reverse, and the fastening portion is fastened on the opening. The fastening portion includes a second inner foaming layer 1', a second heat insulation layer 2', and a second outer foaming layer 3' arranged in sequence from inside to outside. The flat plate portion includes a second inner metal layer 4', a second honeycomb layer 5', and a second outer metal layer 6' arranged in sequence from inside to outside. The fastening of the fastening portion on the opening can improve the connection strength between the lid B and the box body A, and greatly improve the heat preservation performance.

[0041] Compared with the existing insulation box solutions, the cold chain transportation insulation box provided by the embodiment of the present application adopts a first heat insulation layer 2 and a second heat insulation layer 2' with a very low normal temperature thermal conductivity, which can very well inhibit heat conduction, heat convection, and heat radiation. Combining the first inner foaming layer 1, the first outer foaming layer 3, the second inner foaming layer 1', and the second outer foaming layer 3' to form a sandwich structure, the first heat insulation layer 2 and the second heat insulation layer 2' effectively compensate for the disadvantage that the first inner foaming layer 1, the first outer foaming layer 3, the second inner foaming layer 1', and the second outer foaming layer 3' are weak in shear force resistance, greatly improving the heat preservation performance, enhancing the strength, and being more firm and durable.

[0042] Embodiment 1:

[0043] As Figure 1 shown, a cold chain transportation insulation box is provided, which includes a box body A and a lid B. As Figure 2 shown, the box body A is composed of an inner container 8 and an outer shell 9. The inner container 8 and the outer shell 9 are processed separately and finally assembled together. The hierarchical structure of the inner container 8 from inside to outside is composed of a first inner foaming layer 1, a first heat insulation layer 2, and a first outer foaming layer 3. Among them, the first heat insulation layer 2 is an aerogel with a thermal conductivity of 0.0016 - 0.022 W / (m·K) and a density of 0.12 - 0.2 mg / cm 2 , with a thickness of 0.5 - 1.0 mm, and the thicknesses of the first inner foaming layer 1 and the first outer foaming layer 3 are 30 - 50 mm; the hierarchical structure of the outer shell 9 from inside to outside is composed of a first inner metal layer 4, a first honeycomb layer 5, and a first outer metal layer 6. The materials of the first inner metal layer 4 and the first outer metal layer 6 are aluminum, with a thickness of 1 - 3 mm, and the porosity of the first honeycomb layer 5 is 10 - 35%. As Figure 3 shown, the hierarchical structure of the lid B from inside to outside is composed of a second inner foaming layer 1', a second heat insulation layer 2', a second outer foaming layer 3', a second inner metal layer 4', a second honeycomb layer 5', and a second outer metal layer 6'. Among them, the second heat insulation layer 2' is an aerogel with a thermal conductivity of 0.0016 - 0.022 W / (m·K) and a density of 0.12 - 0.2 mg / cm 2, with a thickness of 0.5 - 1.0 mm, the thickness of the second inner foaming layer 1' and the second outer foaming layer 3' is 30 - 50 mm, the materials of the second inner metal layer 4' and the second outer metal layer 6' are aluminum, with a thickness of 1 - 3 mm, the thickness of the first honeycomb layer 5 and the second honeycomb layer 5' is 70 - 100 mm, and the porosity is 10 - 35%. That is, the first inner foaming layer 1, the first outer foaming layer 3, the second inner foaming layer 1', and the second outer foaming layer 3' are the same, simply referred to as the foaming layer; the first heat insulation layer 2 and the second heat insulation layer 2' are the same, simply referred to as the heat insulation layer; the first inner metal layer 4, the first outer metal layer 6, the second inner metal layer 4', and the second outer metal are the same, simply referred to as the outer metal; the first honeycomb layer 5 and the second honeycomb layer 5' are the same, simply referred to as the honeycomb layer.

[0044] Example 2:

[0045] As Figure 4 shown, a thermal insulation box for cold chain transportation is provided, which includes a box body A and a box cover B. The composition levels of the box body A and the box cover B are the same, and from the inside to the outside, they are composed of a foaming layer and a metal layer, and are integrally formed by in-mold injection molding. Among them, the thickness of the foaming layer is 30 - 50 mm, the material of the metal layer is aluminum, and its thickness is 1 - 3 mm mm.

[0046] Example 3:

[0047] As Figure 5 shown, a thermal insulation box for cold chain transportation is provided, which includes a box body A and a box cover B. The composition levels of the box body A and the box cover B are the same, and from the inside to the outside, they are composed of a foaming layer, a metal layer, a honeycomb layer, and a metal layer, and the foaming layer and the metal layer are integrally formed by in-mold injection molding. Among them, the thickness of the foaming layer is 30 - 50 mm, the material of the metal layer is aluminum, and its thickness is 1 - 3 mm, the thickness of the honeycomb layer is 70 - 100 mm, and the porosity is 10 - 35%.

[0048] Example 4:

[0049] A thermal insulation box for cold chain transportation is provided, which includes a box body A and a box cover B. The composition levels of the box body A and the box cover B are the same, and from the inside to the outside, they are composed of a foaming layer, a metal layer, a honeycomb layer, and a metal layer, and the foaming layer and the metal layer are integrally formed by in-mold injection molding. Among them, the thickness of the foaming layer is 30 - 50 mm, the material of the metal layer is aluminum, and its thickness is 1 - 3 mm, the thickness of the honeycomb layer is 70 - 100 mm, and the porosity is 10 - 35%. The box body A is composed of an inner container 8 and an outer shell 9. The inner container 8 and the outer shell 9 are processed separately and finally assembled together. An inflatable interlayer 7 is provided between the inner container 8 and the outer shell 9, and the gap between the inner container 8 and the outer shell 9 is filled by inflating air into the inflatable interlayer 7.

[0050] Example 5:

[0051] Provided is a thermal insulation box for cold chain transportation, which includes a box body A and a box cover B. The composition levels of the box body A and the box cover B are the same, and from the inside to the outside, they are composed of a foaming layer, a metal layer, a honeycomb layer, and a metal layer. Moreover, the foaming layer and the metal layer are integrally formed by in-mold injection molding. Among them, the thickness of the foaming layer is 30 - 50 mm, the material of the metal layer is aluminum, and its thickness is 1 - 3 mm. The thickness of the honeycomb layer is 70 - 100 mm, and the porosity is 10 - 35%. The box body A is composed of an inner container 8 and an outer shell 9. The inner container 8 and the outer shell 9 are processed separately and finally assembled together. An inflatable interlayer 7 is provided between the inner container 8 and the outer shell 9, and the gap between the inner container 8 and the outer shell 9 is filled by inflating air into the inflatable interlayer 7. The inner container 8 further includes a first vacuum insulation board, and the first vacuum insulation board is arranged in the first inner foaming layer 1 and the first outer foaming layer 3; the outer shell 9 further includes a second vacuum insulation board, and the second vacuum insulation board is arranged in the second honeycomb layer 5'.

[0052] The performance test results for the above-mentioned Examples 1 to 5 are as follows.

[0053] The external environmental temperatures are respectively set as: ① constant temperature of 70°C, ② constant temperature of 40°C, ③ thermal shock of 0°C for 2 hours, and then a temperature cycle of 40°C for 2 hours. The initial temperature inside the box body A is 0°C, and the duration when the environmental temperature inside the box body A ≤ 8°C is monitored. The thermal insulation performance test results are shown in Table 1, and the strength test results are shown in Table 2.

[0054] Table 1 Thermal Insulation Performance Test

[0055]

[0056] Table 2 Strength Test

[0057]

[0058] In the above-mentioned embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0059] The above has introduced in detail a thermal insulation box for cold chain transportation provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cold chain transport insulation box, characterized in that: The cold chain transport insulation box comprises a box body and a box cover, the top of the box body is provided with an opening, and the box cover is buckled on the opening; The box body comprises an inner liner and an outer shell, wherein the inner liner comprises a first inner foam layer, a first heat insulation layer and a first outer foam layer arranged in sequence from the inside to the outside, and the outer shell comprises a first inner metal layer, a first honeycomb layer and a first outer metal layer arranged in sequence from the inside to the outside; The box cover comprises a second inner foam layer, a second heat insulation layer, a second outer foam layer, a second inner metal layer, a second honeycomb layer and a second outer metal layer which are arranged in sequence from the inside to the outside.

2. The cold chain transport insulation box according to claim 1, characterized in that: The thickness of the first inner foam layer is equal to the thickness of the second inner foam layer, the thickness of the first heat insulation layer is equal to the thickness of the second heat insulation layer, the thickness of the first outer foam layer is equal to the thickness of the second outer foam layer, the thickness of the first inner metal layer is equal to the thickness of the second inner metal layer, the thickness of the first honeycomb layer is equal to the thickness of the second honeycomb layer, and the thickness of the first outer metal layer is equal to the thickness of the second outer metal layer.

3. The cold chain transport insulation box according to claim 1, characterized in that: The inner liner is sleeved in the outer shell, and a gap is provided between the inner liner and the outer shell.

4. The cold chain transport insulation box according to claim 3, characterized in that: An inflatable interlayer is arranged between the inner liner and the outer shell, and the gap is filled by injecting air into the inflatable interlayer.

5. The cold chain transport insulation box according to claim 3, characterized in that: The liner also includes a first anti-slip layer, which is located on the side of the first outer foam layer away from the first insulation layer; and / or the outer shell also includes a second anti-slip layer, which is located on the side of the first inner metal layer away from the first honeycomb layer; and / or the first anti-slip layer and the second anti-slip layer are made of polyurethane.

6. The cold chain transport insulation box according to claim 1, characterized in that: The inner liner also includes a first vacuum insulation panel, which is arranged in the first inner foam layer and / or the first outer foam layer; and / or the outer shell also includes a second vacuum insulation panel, which is arranged in the second honeycomb layer.

7. The cold chain transport insulation box according to claim 1, characterized in that: The outer shell further includes an inner protective layer, and the inner protective layer is arranged on a side of the first inner metal layer away from the first honeycomb layer.

8. The cold chain transport insulation box according to claim 1, characterized in that: The first thermal insulation layer and the second thermal insulation layer are made of aerogel, and the density of the aerogel is 0.12-0.2 mg / cm 2 The hydrophobicity of the aerogel is ≥90%, and the thermal conductivity of the aerogel at room temperature is 0.0016 to 0.022 W / (m·K).

9. The cold chain transport insulation box according to claim 1, characterized in that: The first inner foam layer, the first outer foam layer, the second inner foam layer and the second outer foam layer are made of foamed polyurethane; and / or the first honeycomb layer and the second honeycomb layer are made of polypropylene.

10. The cold chain transport insulation box according to claim 1, characterized in that: The opening is funnel-shaped, and the box cover includes a flat plate portion and a snap-fit ​​portion located on the lower surface of the flat plate portion, the snap-fit ​​portion is in an inverted trapezoidal shape, and the snap-fit ​​portion is snap-fitted on the opening; the snap-fit ​​portion includes a second inner foam layer, a second heat insulation layer, and a second outer foam layer arranged in sequence from the inside to the outside, and the flat plate portion includes a second inner metal layer, a second honeycomb layer, and a second outer metal layer arranged in sequence from the inside to the outside.

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