Vacuum plate heat preservation box with multi-layer structure

Abstract

The utility model discloses a multi-layer structure vacuum plate heat preservation box which comprises a box-shaped structure composed of a box bottom, a box wall and a box cover, each of the box bottom and the box wall comprises an outer shell layer, a heat preservation assembly and an inner container layer, the outer shell layer and the inner container layer wrap the heat preservation assembly, and the vacuum plate heat preservation box sequentially comprises the outer shell layer, the heat preservation assembly and the inner container layer from outside to inside. The box cover is arranged at the top of the box-shaped structure, the heat preservation assembly comprises a first insulating layer, a second insulating layer and a vacuum plate assembly, and the vacuum plate assembly is arranged between the first insulating layer and the second insulating layer. By arranging the first insulating layer, the second insulating layer and the vacuum plate assembly, the overall structural strength of the vacuum heat preservation box is enhanced while the heat preservation performance of the vacuum heat preservation box is ensured, and the problems that in the prior art, a vacuum plate is fragile and prone to being damaged, and the heat preservation performance is prone to being lost are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat preservation and insulation products, especially relates to a multilayer structure vacuum board heat preservation box. BACKGROUND

[0002] Nowadays, with the improvement of people's living quality, more and more people like outdoor travel or car travel, and the requirement for food preservation is higher and higher, so better heat preservation equipment is needed. When going out for a short time, people often use a portable heat preservation box instead of a car refrigerator or freezer. Most of the heat preservation boxes on the market are made of foam or foamed plastic. Such boxes often have poor heat preservation effect, short maintenance time and large volume. There is also a kind of heat preservation box using vacuum panels in the prior art. Such boxes can better preserve food due to the good heat preservation performance of vacuum panels. However, vacuum panels are relatively fragile and can be easily damaged during use, thereby losing heat preservation performance and causing food spoilage. SUMMARY

[0003] The utility model provides a multilayer structure vacuum board heat preservation box, aims at solving the problem of poor heat preservation effect and easy damage of the existing heat preservation box.

[0004] In order to achieve the above purpose, the utility model provides a multilayer structure vacuum board heat preservation box, which comprises a box-shaped structure composed of a box bottom, a box wall and a box cover. The box bottom and the box wall each comprise an outer shell layer, a heat preservation assembly and an inner container layer. The outer shell layer and the inner container layer wrap the heat preservation assembly. The vacuum board heat preservation box has, from the outside to the inside, the outer shell layer, the heat preservation assembly and the inner container layer. The box cover is arranged at the top of the box-shaped structure. The heat preservation assembly comprises a first insulation layer, a second insulation layer and a vacuum panel assembly. The vacuum panel assembly is arranged between the first insulation layer and the second insulation layer. The vacuum panel assembly is configured in any one of the following combinations:

[0005] The vacuum panel assembly is a single-layer structure composed of a vacuum panel.

[0006] The vacuum panel assembly has, from the outside to the inside, a first protective member and a double-layer structure of a vacuum panel.

[0007] The vacuum panel assembly has, from the outside to the inside, a vacuum panel and a first protective member.

[0008] The vacuum panel assembly has, from the outside to the inside, a first protective member, a vacuum panel and a second protective member.

[0009] Preferably, the top of the vacuum panel assembly of the box wall is covered with a third protective member.

[0010] Preferably, the vacuum plate assembly of the box wall is a double-layer structure, and the vacuum plate assembly of the box bottom is a single-layer structure; or the vacuum plate assembly of the box wall is a three-layer structure, and the vacuum plate assembly of the box bottom is a single-layer structure.

[0011] Preferably, the vacuum plate assembly of the box wall and the box bottom are both double-layer structures, and the first protective member of the box wall and the first protective member of the box bottom are integrally formed in a cylindrical shape, or the second protective member of the box wall and the second protective member of the box bottom are integrally formed in a cylindrical shape.

[0012] Preferably, the vacuum plate assembly of the box wall and the box bottom are both three-layer structures, the first protective member of the box wall and the first protective member of the box bottom are integrally formed in a cylindrical shape, and the second protective member of the box wall and the second protective member of the box bottom are integrally formed in a cylindrical shape.

[0013] Preferably, the vacuum plate of the box wall and the vacuum plate of the box bottom form a cylindrical integral structure, and the outside of the integral structure is wrapped by an aluminum film.

[0014] Preferably, the box cover comprises a box cover cladding layer, a box cover insulation layer and a box cover vacuum plate, the box cover insulation layer is arranged above the box cover vacuum plate, and the box cover cladding layer wraps the box cover insulation layer and the box cover vacuum plate.

[0015] Preferably, the box wall extends a receiving groove in the direction of the box cover, the size of the receiving groove is matched with the size of the box cover, and at least a part of the receiving groove is attached to the box cover, so as to form a relatively closed inner space of the box.

[0016] Preferably, the shell layer comprises at least one of TPU and PU material; the first insulation layer comprises at least one of EVA, EPE, NBR and PE material; and the second insulation layer comprises at least one of EVA, EPE, NBR and PE material.

[0017] Preferably, the first protective member and the second protective member are made of polypropylene material or ABS plastic.

[0018] The vacuum heat preservation box has the advantages that: the first insulation layer, the second insulation layer and the protective member of the vacuum plate assembly all have certain strength and protection capacity, so that the overall structural strength of the vacuum heat preservation box is improved while the heat preservation performance of the vacuum heat preservation box is ensured, and the problems of the fragile and easily damaged vacuum plate and the easy loss of heat preservation performance in the prior art are solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the box lid of this utility model.

[0021] Figure 3 This utility model is for Figure 2 A magnified view of a portion of region A in the middle;

[0022] Figure 4 This is a cross-sectional schematic diagram of the closed box lid of this utility model;

[0023] Figure 5 This utility model is for Figure 4 A magnified view of a portion of region B in the middle;

[0024] Figure 6 This utility model is for Figure 4 A magnified view of a portion of region C.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1-Bottom of the box; 2-Wall of the box; 21-Storage slot;

[0027] 3-Box lid; 31-Box lid covering layer; 32-Box lid insulation layer; 33-Box lid vacuum plate;

[0028] 4-Outer shell layer;

[0029] 5-Insulation component; 51-First insulation layer; 52-Second insulation layer; 53-Vacuum plate assembly; 531-First protective component; 532-Second protective component; 533-Third protective component; 534-Vacuum plate;

[0030] 6-Inner liner. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] Example 1

[0036] like Figures 1-6 As shown, this embodiment provides a multi-layered vacuum plate insulation box, including a box-shaped structure composed of a bottom 1, a wall 2, and a lid 3. Both the bottom 1 and the wall 2 include an outer shell layer 4, an insulation component 5, and an inner liner layer 6. The outer shell layer 4 and the inner liner layer 6 enclose the insulation component 5. From the outside to the inside, the bottom 1 and wall 2 of the vacuum plate insulation box consist of the outer shell layer 4, the insulation component 5, and the inner liner layer 6. The lid 3 is located at the top of the box-shaped structure. The insulation component 5 includes a first insulation layer 51, a second insulation layer 52, and a vacuum plate assembly 53. The vacuum plate assembly 53 is located between the first insulation layer 51 and the second insulation layer 52. The vacuum plate assembly 53 can be configured in any of the following combinations:

[0037] The first type is a single-layer structure composed of vacuum plates 534;

[0038] The second type is a double-layer structure of vacuum plate assembly 53 consisting of a first protective component 531 and a vacuum plate 534, arranged from the outside to the inside.

[0039] The third type is a double-layer structure of vacuum plate assembly 53 consisting of vacuum plate 534 and first protective component 531 from the outside to the inside.

[0040] The fourth type is a three-layer structure of vacuum plate assembly 53, consisting of a first protective component 531, a vacuum plate 534, and a second protective component 532, arranged from the outside in.

[0041] The vacuum panel assemblies 53 of the bottom 1 and the walls 2 can be configured as the same type or different types of vacuum panel assemblies 53. For example, using the same type of vacuum panel assembly 53, the bottom 1 and the walls 2 can simultaneously use the first type of single-layer structure; or simultaneously use the second type of double-layer structure; or simultaneously use the third type of double-layer structure; or simultaneously use the fourth type of triple-layer structure. The bottom 1 and the walls 2 can also use different types of vacuum panel assemblies 53. For example, the bottom 1 can use the first type of single-layer structure, and the walls 2 can use other double-layer or triple-layer structures; or the bottom 1 can use the second type of double-layer structure, and the walls 2 can use other single-layer, double-layer, or triple-layer structures; or the bottom 1 can use the third type of double-layer structure, and the walls 2 can use other single-layer, double-layer, or triple-layer structures; or the bottom 1 can use the fourth type of triple-layer structure, and the walls 2 can use other single-layer or double-layer structures. Other combination types will not be elaborated further.

[0042] The functions of the first protective component 531 and the second protective component 532 are to increase the plasticity of the insulation box, maintain the shape of the insulation component 5, and also to increase the insulation effect of the insulation layer, so that the air reaches a stable state. Among the three combinations of vacuum plate components 53, the second method differs from the first method in that the positions of the first protective component 531 and the vacuum plate 534 are different. The third method differs from the first and second methods in that it has an additional second protective component 532, and the vacuum plate 534 is sandwiched inside the first protective component 531 and the second protective component 532, which provides better support and insulation effect.

[0043] The outer shell layer 4 and inner liner layer 6 of the bottom 1 and the wall 2 of the box form an integral closed structure that completely encloses the insulation component 5. The integral structure formed by the outer shell layer 4 and the inner liner layer 6 enables the vacuum plate insulation box to achieve better insulation effect.

[0044] The lid 3 includes a lid covering layer 31, a lid insulation layer 32, and a lid vacuum plate 33. The lid insulation layer 32 is positioned above the lid vacuum plate 33, and the lid covering layer 31 encloses both the lid insulation layer 32 and the lid vacuum plate 33. This double-layer structure, where the lid covering layer 31 encloses both the lid insulation layer 32 and the lid vacuum plate 33, enhances insulation, maintaining a stable internal temperature. The lid insulation layer 32 also provides protection and support for the lid vacuum plate 33. A handle can be provided on the lid for easy handling.

[0045] A connecting component can be provided between the lid 3 and the box wall 2, such as a hinge, connecting fabric, etc., for fixed connection, or Velcro, snap fasteners, etc., for detachable connection. Alternatively, no connecting component can be provided between the lid 3 and the box wall 2, allowing the lid 3 to detach freely from the insulated box. The box structure is not limited to the square cylindrical structure shown in the figure, but also includes cylindrical, tote-shaped, and other structures.

[0046] Regarding the selection of materials, the outer shell layer 4 includes at least one of TPU and PU materials. For example, it can use TPU or PU single-layer materials alone, or it can use spliced ​​materials or composite materials of the aforementioned materials and Oxford or nylon materials. Specifically, if it is a double-layer composite material, it can be an Oxford TPU composite material (one side of which is Oxford cloth and the other side is TPU material), a nylon TPU composite material (one side of which is nylon cloth and the other side is TPU material), or other double-layer composite material types. If it is a triple-layer composite material, it can be an Oxford TPU composite material (this material consists of two layers of TPU material sandwiching Oxford cloth in the middle), a nylon TPU composite material (this material consists of two layers of TPU material sandwiching nylon cloth in the middle), a TPU-Oxford-PU composite material (this material consists of three layers, namely TPU, Oxford, and PU materials), or other triple-layer composite material combinations, which will not be elaborated here. The inner liner layer 6 can also include at least one of TPU and PU materials. The first insulating layer 51 includes at least one of EVA, EPE, NBR, and PE, and the second insulating layer 52 includes at least one of EVA, EPE, NBR, and PE. The first insulating layer 51 and the second insulating layer 52 can be a single material, a spliced ​​material, or a composite material, preferably a foamed material of the above materials. The first protective element 531 and the second protective element 532 are made of polypropylene or ABS plastic. For example, both the first protective element 531 and the second protective element 532 are made of polypropylene (PP), or both are made of ABS plastic, or the first protective element 531 is made of polypropylene (PP) and the second protective element 532 is made of ABS plastic, or the first protective element 531 is made of ABS plastic and the second protective element 532 is made of polypropylene (PP), etc.

[0047] Example 2

[0048] In this embodiment, the top of the vacuum plate assembly 53 of the enclosure wall 2 is covered by a third protective member 533. The third protective member 533 is adapted to the top structure of the enclosure wall 2 in an annular shape, and is used to protect the vacuum plate 534 at the top and to provide a seal. The annular width of the third protective member 533 can be equal to the farthest distance between the first insulating layer 51 and the second insulating layer 52, that is, the third protective member 533 covers the first insulating layer 51, the vacuum plate assembly 53, and the second insulating layer 52 below it. The annular width of the third protective member 533 can also be equal to the shortest distance between the first insulating layer 51 and the second insulating layer 52, that is, the third protective member 533 only covers the vacuum plate assembly 53 below it.

[0049] The third protective component 533 and the vacuum plate assembly 53 can be combined in various ways, for example:

[0050] In Method 1, the third protective component 533 is not integrally formed with the vacuum plate assembly 53 of the box wall 2. The third protective component 533 is assembled on the top of the box wall 2 by means of a sealing ring buckle.

[0051] Method Two: When the composite vacuum plate assembly 53 of the enclosure wall 2 has a double-layer structure, the third protective component 533 is integrally formed with the first protective component 531 or the second protective component 532 of the enclosure wall 2. This method has two combinations. The first is that the first protective component 531 and the third protective component 533 of the enclosure wall 2 are integrally formed, in which case the first protective component 531 extends upwards to connect with the third protective component 533, and the third protective component 533 covers the vacuum plate 534 below it. The second is a double-layer structure where the composite vacuum plate assembly 53 consists of the vacuum plate 534 and the second protective component 532 from the outside in. The second method is similar to the aforementioned method and will not be elaborated further here.

[0052] Method 3: When the composite vacuum plate assembly 53 of the enclosure wall 2 has a three-layer structure, the third protective component 533 is integrally formed with the first protective component 531 or the second protective component 532 of the enclosure wall 2. This method has two combination forms. The first combination form is that the first protective component 531 and the third protective component 533 of the enclosure wall 2 are integrally formed as a whole, while the third protective component 533 and the second protective component 532 are not integrally formed, so that the whole formed by the first protective component 531 and the third protective component 533 can be separated from the second protective component 532, facilitating the assembly and installation of the vacuum plate 534. The overall structure of the first protective component 531 and the third protective component 533 covers the vacuum plate 534 below it. The second combination form is that the second protective component 532 and the third protective component 533 of the enclosure wall 2 are integrally formed as a whole, while the third protective component 533 and the first protective component 531 are not integrally formed, and the overall structure of the second protective component 532 and the third protective component 533 covers the vacuum plate 534 below it.

[0053] Method four: When the composite vacuum plate assembly 53 of the enclosure wall 2 has a three-layer structure, the third protective component 533 is integrally formed with the first protective component 531 and the second protective component 532 of the enclosure wall 2. This method makes the first protective component 531, the second protective component 532 and the third protective component 533 form a whole, protecting the vacuum plate 534 inside. The three protective components can be integrated by welding, splicing, snap-fitting, etc.

[0054] Example 4

[0055] In this embodiment, the vacuum plate assembly 53 of the box wall 2 has a double-layer structure, while the vacuum plate assembly 53 of the box bottom 1 has a single-layer structure. In this case, the box wall 2, from the outside in, consists of an outer shell layer 4, a first insulating layer 51, a first protective component 531, a vacuum plate 534, a second insulating layer 52, and an inner liner layer 6; or, from the outside in, it consists of an outer shell layer 4, a first insulating layer 51, a vacuum plate 534, a second protective component 532, a second insulating layer 52, and an inner liner layer 6.

[0056] The bottom of the box 1 consists of, from the outside in, an outer shell layer 4, a first insulation layer 51, a vacuum plate 534, a second insulation layer 52, and an inner liner layer 6.

[0057] Example 5

[0058] In this embodiment, the vacuum plate assembly 53 of the box wall 2 has a three-layer structure, while the vacuum plate assembly 53 of the box bottom 1 has a single-layer structure. At this time, the box wall 2 consists of, from the outside to the inside, an outer shell layer 4, a first insulating layer 51, a first protective component 531, a vacuum plate 534, a second protective component 532, a second insulating layer 52, and an inner liner layer 6.

[0059] The bottom of the box 1 consists of, from the outside in, an outer shell layer 4, a first insulation layer 51, a vacuum plate 534, a second insulation layer 52, and an inner liner layer 6.

[0060] Example 6

[0061] In this embodiment, the vacuum plate assemblies 53 of both the box wall 2 and the box bottom 1 are double-layered structures. For example, when the box wall 2 and the box bottom 1 only have the first protective component 531, the first protective component 531 of the box wall 2 and the first protective component 531 of the box bottom 1 are integrally formed into a cylindrical shape. That is, the first protective component 531 of the box wall 2 and the first protective component 531 of the box bottom 1 are a whole, not an assembled or contact structure. The integrally formed whole can bring a more stable support effect and insulation performance to the insulated box.

[0062] Of course, the box wall 2 and the box bottom 1 can also only have the second protective component 532. The second protective component 532 of the box wall 2 and the second protective component 532 of the box bottom 1 are integrally formed into a cylindrical shape.

[0063] Example 7

[0064] In this embodiment, the vacuum plate assemblies 53 of both the box wall 2 and the box bottom 1 are three-layer structures. The first protective component 531 of the box wall 2 and the first protective component 531 of the box bottom 1 are integrally formed into a cylindrical shape, and the second protective component 532 of the box wall 2 and the second protective component 532 of the box bottom 1 are also integrally formed into a cylindrical shape. That is, the first protective component 531 of the box wall 2 and the first protective component 531 of the box bottom 1 are a whole, not an assembled or contact structure. Similarly, the second protective component 532 of the box wall 2 and the second protective component 532 of the box bottom 1 are a whole, not an assembled or contact structure.

[0065] Example 8

[0066] In this embodiment, the vacuum plate 534 of the box wall 2 and the vacuum plate 534 of the box bottom 1 form a cylindrical integral structure, and the exterior of the integral structure is wrapped with an aluminized film. The integral structure formed by the vacuum plate 534 of the box wall 2 and the vacuum plate 534 of the box bottom 1 can bring better heat preservation performance to the insulated box. At the same time, the outer layer of aluminized film blocks external heat sources and maintains the internal temperature of the vacuum plate assembly 53.

[0067] Example 9

[0068] In this embodiment, the box wall 2 extends into a storage groove 21 towards the box lid 3. The size of the storage groove 21 is adapted to the size of the box lid 3. The storage groove 21 fits into at least a part of the box lid 3, thereby forming a relatively sealed internal space.

[0069] The storage slot 21 is an extension located at the top of the box wall 2. The extended protrusion forms a slot-like structure to house all or part of the box lid 3. The surface of the storage slot 21 facing the inside of the box will contact the outer surface of the side of the box lid 3 to form a closed or sealed space, thereby reducing temperature changes.

[0070] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0071] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0072] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A multi-layered vacuum plate insulated box, comprising a box-shaped structure consisting of a bottom, walls, and a lid, characterized in that, The bottom and walls of the box each include an outer shell layer, an insulation component, and an inner liner layer. The outer shell layer and the inner liner layer enclose the insulation component. The vacuum plate insulated box consists of an outer shell layer, an insulation component, and an inner liner layer from the outside to the inside. The box lid is located on the top of the box-shaped structure. The insulation component includes a first insulation layer, a second insulation layer, and a vacuum plate assembly. The vacuum plate assembly is located between the first insulation layer and the second insulation layer. The vacuum plate assembly can be configured in any of the following combinations: The vacuum plate assembly has a double-layer structure consisting of a first protective component and a vacuum plate, from the outside in. The vacuum plate assembly has a double-layer structure consisting of a vacuum plate and a first protective component, from the outside in. The vacuum plate assembly consists of three layers from the outside in: a first protective component, a vacuum plate, and a second protective component. When both the vacuum plate assemblies of the box wall and the box bottom are double-layered structures, the first protective component of the box wall and the first protective component of the box bottom are integrally formed into a cylindrical shape; when both the vacuum plate assemblies of the box wall and the box bottom are triple-layered structures, the first protective component of the box wall and the first protective component of the box bottom are integrally formed into a cylindrical shape, and the second protective component of the box wall and the second protective component of the box bottom are integrally formed into a cylindrical shape.

2. The multi-layer structure vacuum plate insulation box according to claim 1, characterized in that, The top of the vacuum plate assembly of the chamber wall is covered with a third protective element.

3. The multi-layer structure vacuum plate insulation box according to claim 1, characterized in that, The vacuum plate on the wall of the box and the vacuum plate on the bottom of the box form a cylindrical integral structure, and the exterior of the integral structure is wrapped with an aluminum-plated film.

4. The multi-layer structure vacuum plate insulation box according to claim 1, characterized in that, The lid includes a lid covering layer, a lid insulating layer, and a lid vacuum plate. The lid insulating layer is disposed above the lid vacuum plate, and the lid covering layer wraps around the lid insulating layer and the lid vacuum plate.

5. A multi-layer vacuum plate insulation box according to claim 1, characterized in that, The box wall extends into a storage groove towards the box lid. The size of the storage groove is adapted to the size of the box lid. The storage groove fits into at least a portion of the box lid, thereby forming a relatively sealed internal space.

6. A multi-layer structure vacuum plate insulation box according to any one of claims 1 to 5, characterized in that, The outer shell layer includes at least one of TPU and PU materials; the first insulating layer includes at least one of EVA, EPE, NBR and PE materials; and the second insulating layer includes at least one of EVA, EPE, NBR and PE materials.

7. A multi-layer structure vacuum plate insulation box according to any one of claims 1 to 5, characterized in that, The first and second protective components are made of polypropylene or ABS plastic.

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