Polyurethane insulation can

Abstract

The polyurethane heat preservation box comprises a box body and a heat preservation inner container, the heat preservation inner container comprises lateral heat preservation plates arranged on the inner side walls of the box body, a top heat preservation plate arranged in the box body and a bottom heat preservation plate arranged in the box body, and a heat preservation cavity is defined by the lateral heat preservation plates, the top heat preservation plate and the bottom heat preservation plate. A plurality of heat preservation partition plates are vertically arranged in the heat preservation cavity and divide the heat preservation cavity into a plurality of partition cavities with the length-width ratio larger than 2. The space in the heat preservation box is divided to form a division cavity with the length-width ratio larger than 2, the division cavity is a narrow rectangular space, and based on the continuity equation and the Bernoulli principle in fluid mechanics, the air flowing speed can be reduced in the narrow space. Heat exchange of air is reduced by reducing air flowing, so that the heat preservation effect is improved.

Description

Technical Field

[0001] This application relates to the field of insulated boxes, and in particular to a polyurethane insulated box. Background Technology

[0002] With the increasing maturity of new material technologies, polyurethane, as an insulation material, has gradually replaced traditional insulation materials such as foam due to its superior insulation performance. As a foamed new material, polyurethane can be foamed and molded in a mold according to the user's needs, and is widely used in the transportation and storage of products such as food, medicine, cryogenic liquids, and LNG.

[0003] When the internal space of an insulated box is large, more items that need to be kept warm can be stored. However, when there are fewer items that need to be kept warm, if they are placed in an insulated box with a large space, the air flow inside the insulated box will be increased every time it is opened or closed, which will easily reduce the insulation effect. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a polyurethane insulation box. By dividing the space inside the insulation box and reducing airflow in each compartment, the insulation effect is improved.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A polyurethane insulated box includes a box body and an insulated inner liner. The insulated inner liner includes a lateral insulation board disposed on the inner side wall of the box body, a top insulation board disposed within the box body, and a bottom insulation board disposed within the box body. The lateral insulation board, the top insulation board, and the bottom insulation board together form an insulated cavity. Multiple insulated partitions are vertically arranged within the insulated cavity. The upper and lower ends of the insulated partitions abut against the top insulation board and the bottom insulation board, respectively. The left and right ends of the insulated partitions abut against two opposite lateral insulation boards. The multiple insulated partitions divide the insulated cavity into multiple partition cavities with an aspect ratio greater than 2.

[0007] Preferably, there is a receiving cavity between the bottom insulation board and the bottom wall inside the box, and a spare insulation partition board is placed in the receiving cavity.

[0008] Preferably, an abutment spring is provided between the top walls inside the box, and the two ends of the abutment spring are fixedly connected to the box and the top insulation plate, respectively.

[0009] Preferably, the upper surface of the bottom insulation board is provided with a strip-shaped fixing groove, and the lower end of the insulation partition board is located in the strip-shaped fixing groove.

[0010] Preferably, the upper sides of the thermal insulation partition plate are fixed with support protrusions, and the support protrusions abut against the upper end of the lateral thermal insulation plate.

[0011] Preferably, the upper surface of the bottom insulation board is provided with multiple circular limiting grooves.

[0012] Preferably, the side wall inside the box is fixed with a guide protrusion, and the lateral insulation plate is provided with a guide groove that matches the guide protrusion.

[0013] Preferably, the heat-insulating inner liner is made of polyurethane material.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] The space inside the insulation box is divided into partitioned cavities with an aspect ratio greater than 2. These cavities are narrow rectangular spaces. Based on the continuity equation and Bernoulli's principle in fluid mechanics, the airflow speed is reduced within the narrow space. By reducing airflow, heat exchange is decreased, thereby improving the insulation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a partially exploded structural diagram of the present invention.

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Box body; 11. Receiving cavity; 2. Side insulation board; 21. Guide protrusion; 22. Guide groove; 3. Top insulation board; 31. Abutment spring; 4. Bottom insulation board; 41. Strip fixing groove; 42. Circular limiting groove; 5. Insulation cavity; 51. Insulation partition board; 52. Partition cavity; 53. Support protrusion. Detailed Implementation

[0020] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0021] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0022] This application discloses a polyurethane insulation box.

[0023] A polyurethane insulated box includes a box body 1 and an insulated inner liner, the inner liner being made of polyurethane material. The box body 1 is hollow inside, and the insulated inner liner is disposed on the cavity wall inside the box body 1. The insulated inner liner includes a side insulation panel 2, a top insulation panel 3, and a bottom insulation panel 4.

[0024] The side insulation panels 2 consist of four pieces, two of which are longer and the other two are shorter. The ends of the four side insulation panels 2 abut against each other to form a rectangle. The top insulation panel 3 is located on the top of the box body 1. The box body 1 can be opened or closed and has a lid. The top insulation panel 3 is specifically located on the lid of the box body 1. The bottom insulation panel 4 is located at the bottom inside the box body 1. The four side insulation panels 2, the top insulation panel 3, and the bottom insulation panel 4 together form an insulation cavity 5.

[0025] Multiple insulation partitions 51 are provided inside the insulation cavity 5. The insulation partitions 51 are also made of polyurethane material. The insulation partitions 51 are arranged vertically, and when the lid is closed, the upper end of the insulation partition 51 abuts against the top insulation plate 3 on the lid; the lower end of the insulation partition 51 abuts against the bottom insulation partition 51; and both the left and right ends of the insulation partition 51 abut against two opposite side insulation plates 2. The multiple insulation partitions 51 divide the insulation cavity 5 into multiple partition cavities 52 with an aspect ratio greater than 2.

[0026] The insulation chamber 5 can store items that need to be insulated. The partition wall can insulate the items that need to be insulated separately. Since the aspect ratio is greater than 2, it forms a narrow rectangular space. The air flow amplitude and range formed in the rectangular air space during the opening or closing of the lid will be reduced. By reducing the air flow, the heat exchange of the air is reduced, thereby improving the insulation effect.

[0027] A receiving cavity 11 is provided between the bottom insulation plate 4 and the bottom wall inside the box 1, and a spare insulation partition plate 51 is placed in the receiving cavity 11. When it is necessary to insulate larger items, the excess insulation partition plate 51 can be removed and placed in the receiving cavity 11 for later use. This provides space to accommodate the excess insulation partition plate 51.

[0028] A strip-shaped fixing groove 41 is provided on the upper surface of the bottom insulation board 4, and the lower end of the insulation partition board 51 is located in the strip-shaped fixing groove 41. Supporting protrusions 53 are fixed on both sides of the upper end of the insulation partition board 51, and the supporting protrusions 53 abut against the upper end of the side insulation board 2.

[0029] The lower end of the insulation partition plate 51 is inserted into the strip-shaped fixing groove 41. After the support protrusion 53 abuts against the side insulation plate 2, the stability of the insulation partition plate 51 can be improved, so that the insulation partition plate 51 can be kept vertical and the tilting problem can be reduced.

[0030] The upper surface of the bottom insulation plate 4 is provided with multiple circular limiting grooves 42. When it is necessary to place tubular containers such as test tubes for insulation, the test tubes can be inserted into the circular limiting grooves 42 to improve the limiting effect and reduce the shaking of the test tubes when the insulation box is transported.

[0031] An abutment spring 31 is installed between the top walls inside the box 1. The two ends of the abutment spring 31 are fixedly connected to the box 1 and the top insulation plate 3, respectively. The abutment spring 31 is elastic. When the box lid is closed, the top insulation plate 3 will abut against the upper end of the side insulation plate 2 and have a certain pressing effect, thereby blocking the upper opening of the partition cavity 52 and improving the insulation effect.

[0032] A guide protrusion 21 is fixed to the side wall inside the housing 1, and a guide groove 22 adapted to the guide protrusion is provided on the side insulation plate 2. The guide protrusion 21 is located in the guide groove 22, which can reduce the sliding of the side insulation plate 2 relative to the side wall of the housing 1.

[0033] The implementation principle of the embodiment is as follows: the heat-insulating partition plate 51 is inserted into the strip fixing groove 41 at different positions to adjust the partition cavity 52 of different sizes, so as to place items of different sizes that need to be insulated.

[0034] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the above specific embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polyurethane insulated box, comprising a box body (1) and an insulated inner liner, characterized in that: The insulated inner liner includes a side insulation plate (2) on the inner side wall of the box body (1), a top insulation plate (3) in the box body (1), and a bottom insulation plate (4) in the box body (1). The side insulation plate (2), the top insulation plate (3), and the bottom insulation plate (4) together form an insulated cavity (5). Multiple insulation partition plates (51) are vertically arranged in the insulated cavity (5). The upper and lower ends of the insulation partition plates (51) abut against the top insulation plate (3) and the bottom insulation plate (4) respectively. The left and right ends of the insulation partition plates (51) abut against two opposite side insulation plates (2). The multiple insulation partition plates (51) divide the insulated cavity (5) into multiple partition cavities (52) with an aspect ratio greater than 2. There is a receiving cavity (11) between the bottom insulation plate (4) and the bottom wall of the box body (1). A spare insulation partition plate (51) is placed in the receiving cavity (11).

2. The polyurethane insulation box as described in claim 1, characterized in that: An abutment spring (31) is provided between the top walls inside the box (1), and the two ends of the abutment spring (31) are fixedly connected to the box (1) and the top insulation plate (3) respectively.

3. The polyurethane insulation box as described in claim 1, characterized in that: The upper surface of the bottom insulation board (4) is provided with a strip-shaped fixing groove (41), and the lower end of the insulation partition board (51) is located in the strip-shaped fixing groove (41).

4. A polyurethane insulation box as described in claim 3, characterized in that: Supporting protrusions (53) are fixed on both sides of the upper end of the thermal insulation partition plate (51), and the supporting protrusions (53) abut against the upper end of the lateral thermal insulation plate (2).

5. A polyurethane insulation box as described in claim 1, characterized in that: The upper surface of the bottom insulation board (4) is provided with multiple circular limiting grooves (42).

6. A polyurethane insulation box as described in claim 1, characterized in that: The side wall inside the box (1) is fixed with a guide protrusion (21), and the side insulation plate (2) is provided with a guide groove (22) that matches the guide protrusion (21).

7. A polyurethane insulation box as described in claim 1, characterized in that: The heat-insulating inner liner is made of polyurethane material.

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