A cardboard box for transporting frozen products

Abstract

This utility model discloses a packaging cardboard box for transporting frozen products, belonging to the field of packaging box technology. It includes a box body and a lid. The box body, from the outside to the inside, comprises a first cardboard layer, a first vacuum insulation layer, and a first phase change material layer. A sealing groove is provided on the top of the first cardboard layer. In this utility model, when external heat attempts to enter the box body through the first and second cardboard layers, the first and second vacuum insulation layers, with their near-vacuum environment and low thermal conductivity core material, greatly hinder heat conduction and convection. Once some heat breaks through the first and second vacuum insulation layers, causing the temperature inside the box to rise, when the temperature reaches the phase change temperature of the phase change material, the phase change material in the first and second phase change material layers changes from solid to liquid, absorbing a large amount of heat and slowing down the rate of temperature rise inside the box, thus giving the cardboard box a good heat preservation effect.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, specifically relating to a packaging cardboard box for transporting frozen products. Background Technology

[0002] During the transportation of frozen products, the thermal insulation performance and structural design of the packaging are crucial. Current packaging boxes achieve insulation through simple foam lining, which cannot maintain a low-temperature environment for a long time. Therefore, a new type of packaging box for transporting frozen products is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a packaging cardboard box for transporting frozen products, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a packaging cardboard box for transporting frozen products, comprising a box body and a box lid, wherein the box body comprises, from the outside to the inside, a first cardboard layer, a first vacuum insulation layer and a first phase change material layer, wherein a sealing groove is provided on the top of the first cardboard layer, and the first cardboard layer is connected to the first phase change material layer through the first vacuum insulation layer.

[0005] The box cover comprises, from top to bottom, a second cardboard layer, a second vacuum insulation layer, and a second phase change material layer. The second cardboard layer is connected to the second phase change material layer through the second vacuum insulation layer. The second cardboard layer overlaps the upper surface of the first cardboard layer. The second vacuum insulation layer and the second phase change material layer are disposed in a sealing groove.

[0006] As a preferred embodiment, the system also includes a protective component comprising a reinforcing rib connected to the bottom of the first cardboard layer, the reinforcing rib being connected to four protective corners, the four protective corners being respectively connected to the four corners of the first cardboard layer, and a cushioning pad being connected to the bottom of the reinforcing rib.

[0007] As a preferred embodiment, both the first and second cardboard layers are made of corrugated cardboard. The first cardboard layer provides basic structural support for the packaging box, ensuring that the packaging box is not easily deformed during transportation.

[0008] As a preferred embodiment, a temperature sensor is also included, which is disposed between the box body and the box lid.

[0009] As a preferred embodiment, the first and second vacuum insulation layers are sampled vacuum insulation panels, which can effectively prevent heat conduction and convection.

[0010] As a preferred option, both the first phase change material layer and the second phase change material layer are made of polyol or fatty acid phase change materials, which have the advantages of large latent heat of phase change, small subcooling, and stable performance. Moreover, they can better meet the temperature control requirements for transporting frozen products within the temperature range of -20℃ to 0℃.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, when external heat attempts to enter the box through the first and second cardboard layers, the first and second vacuum insulation layers, with their near-vacuum environment and low thermal conductivity core material, greatly hinder heat conduction and convection. Once some heat breaks through the first and second vacuum insulation layers, causing the temperature inside the box to rise, when the temperature reaches the phase change temperature of the phase change material, the phase change material in the first and second phase change material layers changes from solid to liquid, absorbing a large amount of heat and slowing down the rate of temperature rise inside the box, thus giving the cardboard box a good heat preservation effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0015] Figure 3 This is a frontal three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a partial top-view three-dimensional structural schematic diagram of the present invention;

[0017] Figure 5 This is a three-dimensional structural diagram of the first cardboard layer of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the first vacuum insulation layer of this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of the first phase change material layer of this utility model.

[0020] In the diagram: 1. Box body; 101. First cardboard layer; 102. First vacuum insulation layer; 103. First phase change material layer; 104. Sealing groove; 2. Box lid; 201. Second cardboard layer; 202. Second vacuum insulation layer; 203. Second phase change material layer; 3. Protective components; 301. Reinforcing rib; 301. Protective corner; 302. Buffer pad; 4. Temperature sensor. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Example 1

[0024] like Figures 1-7 As shown, this utility model embodiment provides a packaging cardboard box for transporting frozen products, including a box body 1 which, from the outside to the inside, includes a first cardboard layer 101, a first vacuum insulation layer 102, and a first phase change material layer 103. A sealing groove 104 is provided on the top of the first cardboard layer 101, and the first cardboard layer 101 is connected to the first phase change material layer 103 through the first vacuum insulation layer 102.

[0025] The box cover 2 includes, from top to bottom, a second cardboard layer 201, a second vacuum insulation layer 202, and a second phase change material layer 203. The second cardboard layer 201 is connected to the second phase change material layer 203 through the second vacuum insulation layer 202. The second cardboard layer 201 overlaps the upper surface of the first cardboard layer 101. The second vacuum insulation layer 202 and the second phase change material layer 203 are disposed in the sealing groove 104.

[0026] like Figure 3 As shown, specifically, both the first cardboard layer 101 and the second cardboard layer 201 are made of corrugated cardboard.

[0027] In this embodiment, the first cardboard layer 101 and the second cardboard layer 201 provide basic structural support for the packaging box, ensuring that the box is not easily deformed during transportation.

[0028] like Figure 3 As shown, specifically, the first vacuum insulation layer 102 and the second vacuum insulation layer 202 are sample vacuum insulation panels.

[0029] In this embodiment, the first vacuum insulation layer 102 and the second vacuum insulation layer 202 can effectively prevent heat conduction and convection, and can significantly extend the heat preservation time compared with traditional insulation materials.

[0030] like Figure 3 As shown, specifically, both the first phase change material layer 103 and the second phase change material layer 203 are made of polyol or fatty acid phase change materials.

[0031] In this embodiment, the first phase change material layer 103 and the second phase change material are polyol-based or fatty acid-based phase change materials. These materials have the advantages of large latent heat of phase change, small supercooling, and stable performance. Moreover, they can better meet the temperature control requirements for transporting frozen products within the temperature range of -20°C to 0°C.

[0032] Example 2

[0033] Please see Figures 1-5 This utility model embodiment provides a packaging cardboard box for transporting frozen products, and also includes a protective component 3. The protective component 3 includes a reinforcing rib 301, which is connected to the bottom of the first cardboard layer 101. The reinforcing rib 301 is connected to four protective corners 302, which are respectively connected to the four corners of the first cardboard layer 101. A cushioning pad 303 is connected to the bottom of the reinforcing rib 301.

[0034] In this embodiment, the reinforcing rib 301 enhances the pressure resistance of the cardboard box, making the bottom of the cardboard box less prone to damage, and the four protective corners 302 can protect the four corners of the cardboard box. By setting the cushioning pad 303, which is made of environmentally friendly material with a honeycomb structure, it can buffer the impact during transportation and protect the internal products.

[0035] Example 3

[0036] Please see Figure 3 This utility model embodiment provides a packaging cardboard box for transporting frozen products, and also includes a temperature sensor 4, which is disposed between the box body 1 and the box cover 2.

[0037] In this embodiment, the temperature sensor 4 can be configured as a wireless temperature sensor 4, used to collect temperature data inside the box in real time.

[0038] The working principle and usage process of this utility model: When the cardboard box needs to be used, the product is placed inside the box body 1, and then the bottom of the movable box cover 2 is moved into the sealing groove 104. Then the box body 1 and the box cover 2 can be fixed with tape.

[0039] During transportation, when external heat attempts to enter the box 1 through the first cardboard layer 101 and the second cardboard layer 201, the first vacuum insulation layer 102 and the second vacuum insulation layer 202, with their near-vacuum environment and low thermal conductivity core material, greatly hinder the conduction and convection of heat. Once some heat breaks through the first vacuum insulation layer 102 and the second vacuum insulation layer 202, the temperature inside the box will rise.

[0040] When the temperature reaches the phase change temperature of the phase change material, the phase change material in the first phase change material layer 103 and the second phase change material layer 203 changes from solid to liquid, absorbing a large amount of heat and slowing down the rate of temperature rise inside the box.

[0041] Conversely, when the temperature inside the box decreases, the phase change materials in the first phase change material layer 103 and the second phase change material layer 203 change from liquid to solid, releasing the stored heat and preventing the temperature inside the box from dropping excessively.

[0042] Furthermore, the wireless temperature sensor 4 transmits the real-time temperature data collected inside the box to the mobile phones, tablets, and other terminal devices of the transport personnel via wireless transmission technologies such as Bluetooth or Wi-Fi, enabling remote real-time temperature monitoring.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carton for the transport of frozen products comprising a box body (1) and a lid (2), characterized in that: The box body (1) includes, from the outside to the inside, a first cardboard layer (101), a first vacuum insulation layer (102) and a first phase change material layer (103). A sealing groove (104) is provided on the top of the first cardboard layer (101). The first cardboard layer (101) is connected to the first phase change material layer (103) through the first vacuum insulation layer (102). The box cover (2) includes, from top to bottom, a second cardboard layer (201), a second vacuum insulation layer (202), and a second phase change material layer (203). The second cardboard layer (201) is connected to the second phase change material layer (203) through the second vacuum insulation layer (202). The second cardboard layer (201) overlaps the upper surface of the first cardboard layer (101). The second vacuum insulation layer (202) and the second phase change material layer (203) are located in the sealing groove (104).

2. A carton for transporting frozen products according to claim 1, characterised in that: It also includes a protective component (3), which includes a reinforcing rib (301) connected to the bottom of the first cardboard layer (101), the reinforcing rib (301) being connected to four protective corners (302), the four protective corners (302) being connected to the four corners of the first cardboard layer (101) respectively, and a cushioning pad (303) being connected to the bottom of the reinforcing rib (301).

3. A carton for transporting frozen products according to claim 1, wherein: It also includes a temperature sensor (4), which is located between the box body (1) and the box cover (2).

4. A carton for transporting frozen products according to claim 1, wherein: Both the first cardboard layer (101) and the second cardboard layer (201) are made of corrugated cardboard.

5. A carton for transporting frozen products according to claim 1, wherein: The first vacuum insulation layer (102) and the second vacuum insulation layer (202) are sampled vacuum insulation panels.

6. A carton for transporting frozen products according to claim 1, wherein: Both the first phase change material layer (103) and the second phase change material layer (203) are made of polyol or fatty acid phase change materials.

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