Preparation method of vacuum insulation panel, vacuum insulation panel and refrigeration equipment

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a preparation method of a vacuum insulation panel, the vacuum insulation panel and the refrigeration equipment. The preparation method of the vacuum insulation panel comprises the steps that a heat preservation core material and a first film material are provided, and the heat preservation core material and / or the first film material are / is coated with a first bonding layer; the heat preservation core material is attached to the first film material through the first bonding layer, and the first film material is coated with a second bonding layer along the outer edge of the heat preservation core material, so that the heat preservation core material and the first film material are assembled into a pre-assembled part; and providing a second membrane material, placing the pre-assembled part and the second membrane material in a preset vacuum environment, and bonding the second membrane material and the first membrane material in the preset vacuum environment. According to the preparation method of the vacuum insulated panel, the pre-assembled part can be prepared in advance, then the pre-assembled part and the second membrane material are attached and bonded, a plurality of vacuum insulated panels can be prepared at the same time, the preparation process is simple, the production and processing efficiency is high, meanwhile, the heat preservation core material and the membrane material can be efficiently utilized, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly relates to a preparation method of a vacuum insulation panel, a vacuum insulation panel and a refrigeration equipment. Background Art

[0002] What is provided in this part is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] A vacuum insulation panel (VIP panel, Vacuum Insulation Panel) is a type of vacuum thermal insulation material. The vacuum insulation panel mainly consists of a thermal insulation core material, a barrier film and a getter. It effectively avoids heat transfer caused by air convection and has the advantages of a thin thermal insulation layer, small volume and light weight.

[0004] Currently, the preparation process of the vacuum insulation panel generally includes processes such as making the thermal insulation core material / membrane material, encapsulation, edge wrapping, pasting, foaming, etc., and the preparation process is relatively complex. Summary of the Invention

[0005] The object of the present invention is to at least solve the problem that the preparation process of the vacuum insulation panel is relatively complex. This object is achieved by the following technical solutions:

[0006] The first aspect of the present invention provides a preparation method of a vacuum insulation panel, including:

[0007] Providing a thermal insulation core material and a first membrane material, coating a first adhesive layer on the thermal insulation core material and / or the first membrane material, attaching the thermal insulation core material to the first membrane material through the first adhesive layer, and coating a second adhesive layer along the outer edge of the thermal insulation core material on the first membrane material to assemble the thermal insulation core material and the first membrane material into a pre-assembled part;

[0008] Providing a second membrane material, placing the pre-assembled part and the second membrane material in a preset vacuum environment, and in the preset vacuum environment, bonding and attaching the second membrane material to the first membrane material through the second adhesive layer to form the vacuum insulation panel.

[0009] The preparation method of the vacuum insulation panel of the present invention is as follows: First, a first adhesive layer is coated on the thermal insulation core material or the first film material or on both the thermal insulation core material and the first film material. The thermal insulation core material is attached to the first film material through the first adhesive layer. Then, a second adhesive layer is coated on the first film material along the outer edge of the thermal insulation core material to form a pre-assembled component. Then, both the pre-assembled component and the second film material are placed in a preset vacuum environment, and the second film material and the first film material are bonded through the second adhesive layer to form a vacuum insulation panel. Through the above preparation method, the preparation of the pre-assembled component can be carried out in advance, and then the pre-assembled component and the second film material are mutually bonded. Multiple vacuum insulation panels can be prepared simultaneously. The preparation process is relatively simple, the production and processing efficiency is relatively high, and at the same time, the thermal insulation core material and the film material can be efficiently utilized, reducing the production cost.

[0010] In addition, according to the preparation method of the vacuum insulation panel of the present invention, the following additional technical features may also be included:

[0011] In some embodiments of the present invention, the step of coating the first adhesive layer on the thermal insulation core material and / or the first film material and attaching the thermal insulation core material to the first film material through the first adhesive layer includes:

[0012] The thermal insulation core material is cut into multiple core material units according to the required dimensions. Glue is coated on the first connection surface of each core material unit connected to the first film material, and / or glue is coated on the second connection surface of the first film material connected to the core material unit to form the first adhesive layer. Each core material unit is adhesively bonded to the first film material at intervals along a direction parallel to the first film material.

[0013] In some embodiments of the present invention, after the step of coating the second adhesive layer on the first film material along the outer edge of the thermal insulation core material, the following is further included:

[0014] Glue is coated on the circumferential edge of the first film material to form a retaining edge.

[0015] In some embodiments of the present invention, the second adhesive layer is a photosensitive adhesive layer or a black adhesive layer.

[0016] In some embodiments of the present invention, before the step of bonding the second film material and the first film material to each other through the second adhesive layer, the following is further included:

[0017] The second film material and the pre-assembled component are pre-positioned.

[0018] In some embodiments of the present invention, after the step of pre-positioning the second film material and the pre-assembled component and before the step of bonding the second film material and the first film material to each other through the second adhesive layer, the following is further included:

[0019] An getter is placed inside each of the core material units.

[0020] In some embodiments of the present invention, the step of bonding the second film material to the first film material through the second adhesive layer includes:

[0021] Driving the pre-assembly close to the second film material until the second film material is bonded to the first film material.

[0022] In some embodiments of the present invention, the bonded second film material and the pre-assembly are subjected to aging and / or post-baking treatment to cure the second adhesive layer.

[0023] In some embodiments of the present invention, after the step of subjecting the bonded second film material and the pre-assembly to aging and / or post-baking treatment, the following steps are further included:

[0024] Cutting along the outer edge of each core material unit to trim the excess first and second film materials.

[0025] A second aspect of the present invention provides a vacuum insulation panel, which is prepared by using the preparation method of the vacuum insulation panel as described in any one of the above.

[0026] In some embodiments of the present invention, the second film material is a barrier film, and the light transmittance of the barrier film is greater than or equal to 10%.

[0027] A third aspect of the present invention provides a refrigeration device, including a box body, the box body includes a housing, an inner liner, and the vacuum insulation panel as described above. The inner liner is arranged inside the housing, and the vacuum insulation panel is arranged between the inner liner and the housing. Description of the Drawings

[0028] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as limiting the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0029] Figure 1 Schematically shows a flowchart of the preparation method of the vacuum insulation panel according to an embodiment of the present invention;

[0030] Figure 2 Schematically shows a partial structural diagram of the pre-assembly prepared by the preparation method of the vacuum insulation panel according to an embodiment of the present invention;

[0031] Figure 3Schematically shows a structural schematic diagram of a pre-assembled component prepared by the method for preparing a vacuum insulation panel according to an embodiment of the present invention;

[0032] Figure 4 Schematically shows an assembly schematic diagram of a vacuum insulation panel prepared by the method for preparing a vacuum insulation panel according to an embodiment of the present invention;

[0033] Figure 5 Schematically shows a structural schematic diagram of a first insulation panel prepared by the method for preparing a vacuum insulation panel according to an embodiment of the present invention;

[0034] Figure 6 Schematically shows a structural schematic diagram of a second insulation panel prepared by the method for preparing a vacuum insulation panel according to an embodiment of the present invention;

[0035] Figure 7 Schematically shows a structural schematic diagram of a third insulation panel prepared by the method for preparing a vacuum insulation panel according to an embodiment of the present invention;

[0036] Figure 8 Schematically shows a structural schematic diagram of a processing device for a vacuum insulation panel according to an embodiment of the present invention;

[0037] Figure 9 Schematically shows a structural schematic diagram of a box body of a refrigeration device according to an embodiment of the present invention.

[0038] The reference numerals are as follows:

[0039] 100, vacuum insulation panel;

[0040] 1, first film material;

[0041] 21, first core material unit; 22, second core material unit; 23, third core material unit;

[0042] 3, second adhesive layer;

[0043] 4, edge stop;

[0044] 5, second film material;

[0045] 6, vacuum device; 61, chamber; 62, vacuum pumping device; 63, assembly device; 631, first conveying component; 6311, first fixing member; 632, second conveying component; 6321, second fixing member; 64, curing device; 641, curing component; 65, glue coating device;

[0046] 71, first insulation panel; 72, second insulation panel; 73, third insulation panel;

[0047] 8, box body; 81, housing; 82, inner container. Detailed Implementation Modes

[0048] Exemplary implementation modes of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary implementation modes of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the implementation modes set forth herein. On the contrary, these implementation modes are provided so that the present disclosure can be understood more thoroughly and the scope of the present disclosure can be fully communicated to those skilled in the art.

[0049] It should be understood that the terms used herein are for the purpose of describing specific exemplary implementation modes only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0050] Although the terms first, second, third, etc. may be used in the text to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used in the text. Therefore, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary implementation modes.

[0051] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure to another element or feature, such as "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is flipped, the element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the exemplary term "below" can include both the upper and lower orientations.

[0052] As Figures 1 to 7 shown, according to an embodiment of the present invention, a method for preparing a vacuum insulation panel is provided. The preparation method includes:

[0053] S100: Provide a thermal insulation core material and a first film material 1. Coat a first adhesive layer on the thermal insulation core material and / or the first film material 1. Attach the thermal insulation core material to the first film material 1 through the first adhesive layer, and coat a second adhesive layer 3 along the outer edge of the thermal insulation core material on the first film material 1 to assemble the thermal insulation core material and the first film material 1 into a pre-assembled component;

[0054] S200: Provide a second film material 5. Place the pre-assembled component and the second film material 5 in a preset vacuum environment. In the preset vacuum environment, bond the second film material 5 to the first film material 1 through the second adhesive layer 3 to form a vacuum insulation panel 100.

[0055] The above-mentioned thermal insulation core material is made of glass or plastic fiber and can be used as the support framework of the thermal insulation layer. The first film material 1 is a barrier film, and the barrier film can be a commonly used VIP barrier film material such as an aluminum foil film or a multi-layer aluminized film. The second adhesive layer 3 can be UV (Ultraviolet) glue or black glue. The UV glue is cured by UV to form a vacuum chamber 61 near a single thermal insulation core material, and finally a single VIP board is obtained through cutting. The main components of the black glue are photoinitiator, acrylic monomers, antioxidants, carbon black, powder fillers, additives, etc. The role of carbon black is to increase the overall UV absorption rate of the glue to achieve low-energy curing, and the addition amount should be 10%-20%, and at the same time, it should meet the environmental reliability test after curing. When the second adhesive layer 3 uses UV glue, correspondingly, the second film body is a semi-permeable barrier film, and the transmittance of ultraviolet light of the semi-permeable barrier film is ≥30%, and the material is an aluminized film or other metal or metal oxide film, so that the UV curing energy reaching the glue surface reaches 300-800mJ / m 2 ·s, which is beneficial to the rapid curing of the UV glue. When the second adhesive layer 3 uses black glue, correspondingly, the transmittance of ultraviolet light of the second film body is ≥10%, so that the UV curing energy reaching the glue surface reaches 100-300mJ / m 2 ·s.

[0056] Environmental reliability tests generally include mechanical environment tests, climatic environment tests, and comprehensive environment tests. Among them, mechanical environment tests mainly include mechanical vibration, mechanical shock, drop, collision, steady-state acceleration tests, etc.; climatic environment tests mainly include temperature tests, temperature and humidity tests, air pressure tests, water tests, salt spray tests, sand and dust tests, gas corrosion tests, etc.; comprehensive environment tests mainly include temperature and air pressure comprehensive tests, temperature and vibration comprehensive tests, temperature, humidity and vibration comprehensive tests, temperature, air pressure and humidity comprehensive tests, etc. The reliability of the vacuum insulation panel 100 is verified through environmental reliability tests to ensure the quality of the vacuum insulation panel 100.

[0057] When preparing the vacuum insulation panel 100, first, a thermal insulation core material is made and dried. Glue or VHB (Very High Bond, strong adhesion) tape is applied to the surface of the thermal insulation core material, on the first film material 1, or on both the thermal insulation core material and the first film material 1. The thermal insulation core material is attached to the first film material 1. Then, glue is coated along the outer edge shape of the thermal insulation core material on the surface of the first film material 1 to form a pre-assembly. Then, the prepared pre-assembly and the second film material 5 are respectively transported to a preset vacuum environment. In the preset vacuum environment, first, the positions of the first film material 1 and the second film material 5 are positioned, and the pre-assembly is slowly brought closer to the second film material 5 until the second film material 5 is attached to the first film material 1.

[0058] For the preparation method of the vacuum insulation panel of the present invention, first, a first adhesive layer is coated on the thermal insulation core material, on the first film material 1, or on both the thermal insulation core material and the first film material 1. The thermal insulation core material is attached to the first film material 1 through the first adhesive layer. Then, a second adhesive layer 3 is coated along the outer edge of the thermal insulation core material on the first film material 1 to form a pre-assembly. Then, the pre-assembly and the second film material 5 are both placed in a preset vacuum environment, and the second film material 5 and the first film material 1 are bonded through the second adhesive layer 3 to form the vacuum insulation panel 100. Through the above preparation method, the preparation of the pre-assembly can be carried out in advance, and then the pre-assembly and the second film material 5 are mutually attached and bonded, multiple vacuum insulation panels 100 can be prepared simultaneously, the preparation process is relatively simple, the production and processing efficiency is relatively high, and at the same time, the thermal insulation core material and the film material can be efficiently utilized, reducing the production cost.

[0059] In some embodiments of the present invention, the step of coating the first adhesive layer on the thermal insulation core material and / or the first film material 1 and attaching the thermal insulation core material to the first film material 1 through the first adhesive layer includes: cutting the thermal insulation core material into multiple core material units according to the required size, coating glue on the first connection surface of each core material unit connected to the first film material 1, and / or coating glue on the second connection surface of the first film material 1 connected to the core material unit to form the first adhesive layer, and each core material unit is adhesively bonded to the first film material 1 at intervals along the direction parallel to the first film material 1. When preparing the vacuum insulation panel 100, as Figures 2 - 7As shown, the core material is cut into multiple core material units according to the required dimensions, namely the first core material unit 21, the second core material unit 22, and the third core material unit 23. The first core material unit 21 has a regular shape, while the second core material unit 22 and the third core material unit 23 are irregular core materials. Through the arrangement shown in the figure, the first core material unit 21, the second core material unit 22, and the third core material unit 23 can efficiently utilize the space on the first film material 1, and multiple vacuum insulation panels 100 with different shapes can be produced simultaneously according to actual needs, improving production efficiency and saving costs. It should be noted that the shape of each core material unit and the arrangement of each core material unit can be changed according to actual production needs, and no limitation is made here.

[0060] In some embodiments of the present invention, after the step of coating the second adhesive layer 3 along the outer edge of the thermal insulation core material on the first film material 1, it further includes: coating glue along the circumferential edge of the first film material 1 on the first film material 1 to form a retaining edge 4. Specifically, the retaining edge 4 is UV glue, and the UV glue can be cured after vacuum encapsulation. By coating the retaining edge 4 along the circumferential edge of the first film material 1, it can buffer during the vacuum release process after vacuum encapsulation, avoid local glue debonding caused by too fast vacuum release, and improve the quality of the vacuum insulation panel 100.

[0061] In some embodiments of the present invention, before the step of bonding the second film material 5 to the first film material 1 through the second adhesive layer 3, it further includes: pre-positioning the second film material 5 with the pre-assembled component. It can be positioned jointly through a mold or by grasping and positioning with a CCD (charge coupled device), which is used for positioning during assembly to ensure the accuracy when the second film material 5 is bonded to the first film material 1.

[0062] In some embodiments of the present invention, after the step of pre-positioning the second film material 5 with the pre-assembled component and before the step of bonding the second film material to the first film material through the second adhesive layer, it further includes: placing a getter inside each core material unit. Placing a getter inside each core material unit before vacuum encapsulation after pre-positioning can shorten the vacuum pumping time, and can eliminate the residual and re-released gas after the vacuum encapsulation of the vacuum insulation panel 100, effectively maintaining the vacuum degree of the vacuum insulation panel 100 for a long time.

[0063] In some embodiments of the present invention, the step of bonding the second film material 5 to the first film material 1 through the second adhesive layer 3 includes: driving the pre-assembly and the second film material 5 to approach each other until the second film material 5 is bonded to the first film material 1. Specifically, a vacuum assembly step is performed by a vacuum device 6, which includes a chamber 61, a vacuum pumping device 62, an assembly device 63, and a curing device 64. The assembly device 63 includes a first conveying component 631 and a second conveying component 632 arranged opposite to each other. The first conveying component 631 is used to convey the pre-assembly, and the second conveying component 632 is used to convey the second film material 5. During vacuum assembly, the pre-assembly and the second film material 5 are respectively conveyed onto the first conveying component 631 and the second conveying component 632. At a preset vacuum degree, the first conveying component 631 and the second conveying component 632 drive the pre-assembly and the second film material 5 to approach slowly until vacuum encapsulation is completed.

[0064] In some embodiments of the present invention, the bonded second film material 5 and the pre-assembly are subjected to aging and / or post-baking treatment to cure the second adhesive layer 3. The second adhesive layer 3 is subjected to static aging or post-baking or aging and post-baking to completely cure the glue, and at the same time, the getter fully absorbs the remaining gas to ensure the heat preservation effect of the vacuum insulation panel 100. The temperature of the post-baking treatment is 50 - 90 °C, and the time is 10 - 120 min. The specific parameters need to be adjusted according to the glue type and the sealing performance requirements.

[0065] In some embodiments of the present invention, after the step of curing and aging the second adhesive layer 3, it further includes: cutting along the outer edge of each core unit to trim the excess first film material 1 and second film material 5. As Figures 5 to 7 shown, after cutting, a first insulation panel 71, a second insulation panel 72, and a third insulation panel 73 are formed.

[0066] The second aspect of the present invention provides a vacuum insulation panel 100, which is prepared by using the above-mentioned preparation method of the vacuum insulation panel. When preparing the vacuum insulation panel 100, the vacuum insulation panel 100 is prepared by using the vacuum device 6. As Figure 8 shown, the chamber 61 of the vacuum device 6 is formed by a closed outer shell. The material of the outer shell is preferably metal, and an observation hole is provided on the outer shell for process inspection and control. The vacuum pumping device 62 is connected to the chamber 61. The vacuum pumping device 62 can be arranged inside or outside the chamber 61. The outside of the vacuum pumping device 62 is connected to a vacuum station system to pump the chamber 61 to a preset vacuum value to form a preset vacuum environment. The preset vacuum value can be set according to actual needs.

[0067] The first transfer component 631 and the second transfer component 632 are arranged in the chamber 61. The first transfer component 631 includes a first transfer machine table, which is connected to a servo motor and can control the position and distance of the first transfer machine table according to parameter settings. A first fixing member 6311 is arranged on the first transfer machine table, and the first fixing member 6311 is used to fix the pre-assembled part, facilitating assembly positioning and control. The second pre-assembled part transfers the second film material 5 to make the pre-assembled part and the second film material 5 approach each other. The second transfer component 632 includes a second transfer machine table, which is connected to a servo motor and can control the position and distance of the second transfer machine table according to parameter settings. A second fixing member 6321 is arranged on the second transfer machine table, and the second fixing member 6321 is used to fix the second pre-assembled part, facilitating assembly positioning and control.

[0068] The vacuum device 6 of this embodiment further includes a control device and a positioning device. The first transfer component 631 and the second transfer component 632 are controlled and coordinated by the control device to complete the assembly of the pre-assembled part and the second film material 5. The relative positions of the first transfer component 631 and the second transfer component 632 can be up and down, left and right, inclined, etc., to cooperate with different application scenarios. The first transfer component 631 and the second transfer component 632 can be used for the assembly of heat-insulating film bags and heat-insulating core materials, the assembly of refrigerator shells and inner liners, the assembly of vacuum fresh-keeping drawer shells and drawers, etc.

[0069] The curing device 64 is arranged in the chamber 61 and is used to cure the second adhesive layer 3 and the edge guard 4. The curing device 64 includes a curing component 641 and a first transmission device arranged on the curing component 641. Usually, the curing component 641 can be hidden inside the outer shell through the first transmission device and extended to the surface of the product during the curing process stage to quickly cure the glue. The curing component 641 can be a UV lamp, an infrared heating tube, a pressing and heat-sealing strip, a blowing device, etc.

[0070] In this embodiment, the vacuum device 6 further includes a glue coating device 65. The glue coating device 65 is arranged in the chamber 61. The glue coating device 65 is preferably of the inkjet type. The rear end of the glue coating device 65 is connected to a glue storage tank with positive and negative pressure conditions and is used to coat the first adhesive layer, the second adhesive layer 3 and the edge guard 4 before assembly.

[0071] In other embodiments, the vacuum device 6 can also be provided with an auxiliary device. The auxiliary device includes an auxiliary component and a second transmission device arranged on the auxiliary component. The auxiliary component can be a cleaning device or a component for performing other auxiliary processes. Usually, the auxiliary component can be hidden inside the outer shell through the second transmission device and extended during the auxiliary process stage.

[0072] When vacuum assembling the vacuum insulation panel 100 using the vacuum device 6, the pre-assembled part and the second film material 5 are respectively conveyed to the first conveyor platform and the second conveyor platform of the vacuum device 6 by a manipulator or other conveying device. The vacuum pumping device 62 starts pumping, and the vacuum degree is 1 Pa. At the same time, the first conveyor platform and the second conveyor platform slowly approach the pre-assembled part and the second film material 5 according to the parameter settings until the second film material 5 adheres to and bonds with the first film material 1, completing the bag sealing step. Then, the second adhesive layer 3 and the edge guard 4 are UV cured by the curing device 64, with an energy of 1000 - 2500 mJ / m 2 ·s and a curing time of 5 - 60 s. During the curing process, the vacuum degree is gradually released to prevent local glue debonding caused by too fast vacuum release, and finally reaches the same air pressure as the outside. After curing, the entire vacuum insulation panel 100 is left to age statically or transferred to a post-baking heating oven for post-baking treatment. After post-baking, the entire vacuum insulation panel 100 is cut and can be put into subsequent assembly processes.

[0073] The third aspect of the present invention proposes a refrigeration device. Specifically, the refrigeration device can be a refrigerator, or can also be a storage device with refrigeration, freezing or other storage functions, such as a freezer, a refrigerator cabinet, etc. In this embodiment, the refrigeration device is a refrigerator. As Figure 9 shown, the refrigeration device includes a box body 8. The box body 8 includes a housing 81, an inner liner 82 and the above-mentioned vacuum insulation panel 100. The inner liner 82 is arranged inside the housing 81, and the vacuum insulation panel 100 is arranged between the inner liner 82 and the housing 81. Specifically, glue is applied or VHB tape is attached to the inner peripheral wall of the housing 81, or on the outer periphery of the vacuum insulation panel 100, or on both the inner peripheral wall of the housing 81 and the outer periphery of the vacuum insulation panel 100, and the vacuum insulation panel 100 is attached to the inner peripheral wall of the housing 81; then glue is applied or VHB tape is attached to the outer peripheral wall of the inner liner 82, and then the housing 81 with the attached vacuum insulation panel 100 and the inner liner 82 are bonded together, completing the assembly of the box body 8. A cavity with an opening at one end is formed inside the box body 8, and there is a storage space for accommodating items in the cavity. Among them, the storage space can include multiple storage compartments, and the number and structural form of the storage compartments can be configured according to different needs. The storage compartments usually include a refrigerating chamber and a freezing chamber. The refrigeration device of this embodiment further includes a door body, which is connected to the box body 8 and is hinged to the opening of the cavity through a rotating shaft, and the door body can be operably opened or closed to the storage space.

[0074] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A preparation method of a vacuum insulation panel, characterized in that, Comprising: Providing a thermal insulation core material and a first film material, coating a first adhesive layer on the thermal insulation core material and / or the first film material, attaching the thermal insulation core material to the first film material through the first adhesive layer, and coating a second adhesive layer along the outer edge of the thermal insulation core material on the first film material to assemble the thermal insulation core material and the first film material into a pre-assembled component; Providing a second film material, placing the pre-assembled component and the second film material in a preset vacuum environment, and in the preset vacuum environment, bonding the second film material to the first film material through the second adhesive layer to form the vacuum insulation panel.

2. The preparation method of the vacuum insulation panel according to claim 1, characterized in that, The step of coating a first adhesive layer on the thermal insulation core material and / or the first film material and attaching the thermal insulation core material to the first film material through the first adhesive layer includes: Cutting the thermal insulation core material into a plurality of core material units according to required dimensions, coating glue on a first connection surface of each core material unit connected to the first film material, and / or coating glue on a second connection surface of the first film material connected to the core material unit to form the first adhesive layer, and bonding each core material unit to the first film material at intervals along a direction parallel to the first film material.

3. The preparation method of the vacuum insulation panel according to claim 1, wherein, After the step of coating a second adhesive layer along the outer edge of the thermal insulation core material on the first film material, it further includes: Coating glue along the circumferential edge of the first film material on the first film material to form a baffle.

4. The preparation method of the vacuum insulation panel according to claim 1, characterized in that, The second adhesive layer is a photosensitive adhesive layer or a black adhesive layer.

5. The preparation method of the vacuum insulation panel according to claim 2, characterized in that, Before the step of bonding the second film material to the first film material through the second adhesive layer, it further includes: Pre-positioning the second film material and the pre-assembled component.

6. The preparation method of the vacuum insulation panel according to claim 5, wherein, After the step of pre-positioning the second film material and the pre-assembled component and before the step of bonding the second film material to the first film material through the second adhesive layer, it further includes: Placing a getter inside each core material unit.

7. The preparation method of the vacuum insulation panel according to any one of claims 1-6, characterized in that, The step of bonding the second film material to the first film material through the second adhesive layer includes: Driving the pre-assembled component and the second film material to approach each other until the second film material is bonded to the first film material.

8. The preparation method of the vacuum insulation panel according to any one of claims 1-6, characterized in that, Performing aging and / or post-baking treatment on the bonded second film material and pre-assembled component to cure the second adhesive layer.

9. The preparation method of the vacuum insulation panel according to claim 8, characterized in that, After the step of performing aging and / or post-baking treatment on the bonded second film material and pre-assembled component, it further includes: Cutting along the outer edge of each core material unit to trim the excess first film material and second film material.

10. A vacuum insulation panel, characterized in that, The vacuum insulation panel is prepared by using the preparation method of the vacuum insulation panel according to any one of claims 1 to 9.

11. The vacuum insulation panel according to claim 10, characterized in that, The second film material is a barrier film, and the light transmittance of the barrier film is greater than or equal to 10%.

12. A refrigeration device, characterized in that, Comprising a box body, the box body includes a shell, an inner liner and the vacuum insulation panel according to claim 11, the inner liner is arranged inside the shell, and the vacuum insulation panel is arranged between the inner liner and the shell.

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