Vacuum insulation panel not prone to air leakage
By providing heat-sealing sheets at the corners of the core material of the vacuum insulation panel and heat-sealing them with the barrier film, the problem of the vacuum insulation panel being easily damaged and leaking at the corners during the folding process is solved, achieving higher sealing and durability.
Patent Information
- Application Number
- CN202423044805.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-10
AI Technical Summary
The corners of vacuum insulation panels are easily damaged during the folding process, which affects performance and causes air leakage.
Heat-sealing sheets are set at the corners of the core material, and are heat-sealed together with the upper and lower barrier films by heating to enhance the sealing of the corners.
It effectively prevents air leakage at the corners of the vacuum insulation panels, and improves the overall sealing and service life of the vacuum insulation panels.
Smart Images
Figure CN223375435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum insulation panels, in particular to a vacuum insulation panel that is not prone to air leakage. Background Art
[0002] Energy conservation and emission reduction have become a global concern, and the development of new energy, technologies, and materials is imperative. Vacuum insulation panels (VIPs) are a highly efficient thermal insulation material that combines the principles of vacuum insulation with traditional insulation materials. As a new type of insulation material, they offer low thermal conductivity and thin thickness, making them widely used in refrigerators, insulated boxes, building walls, refrigerated containers, and other applications, reducing energy consumption and improving economic efficiency. They hold enormous potential for development.
[0003] When actually using vacuum insulation panels, usually after vacuuming, the excess edge leaves need to be folded before use. During the folding process, the edge leaves at the corners of the vacuum insulation panels need to be pinched to facilitate folding into a regular shape of the vacuum insulation panels. When the vacuum insulation panels are folded, the corners of the vacuum insulation panels are easily damaged, thereby affecting the performance of the vacuum insulation panels. Utility Model Content
[0004] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide a vacuum insulation panel that is not easy to leak. By arranging heat-sealing sheets at the corners of the core material, the corners of the vacuum insulation panel are not easy to leak after being baked.
[0005] The technical solution adopted by the present application to solve its technical problem is: a vacuum insulation panel that is not easy to leak, including a barrier bag, a core material, an adsorbent and a heat sealing sheet;
[0006] The barrier bag includes an upper barrier film and a lower barrier film, the core material is arranged in the barrier bag, the adsorbent is arranged on the core material and located in the barrier bag, the heat sealing sheet is arranged at the corner of the core material, one side of the heat sealing sheet is heat-sealed with the upper barrier film, and the other side of the heat sealing sheet is heat-sealed with the lower barrier film.
[0007] Furthermore, the core material is a sheet-like core material.
[0008] Furthermore, the core material is formed by stacking multiple glass fiber mats; the heat sealing sheet is inserted horizontally between two adjacent glass fiber mats.
[0009] Furthermore, a heat-sealing layer that is easily heat-sealed with the heat-sealing sheet is provided on the inner sides of the upper barrier film and the lower barrier film.
[0010] Furthermore, the heat sealing layer is made of polyethylene material, and the heat sealing sheet is made of polyethylene material.
[0011] Furthermore, the heat-sealing sheet is a heat-sealing annular sheet, which is sandwiched in the middle of the multi-layer core material, and the outer side of the heat-sealing annular sheet protrudes from the core material.
[0012] Furthermore, the heat sealing sheet has a thickness of 20 μm-50 μm.
[0013] The beneficial effect of the present application is that after the vacuum insulation panel is manufactured, since the heat sealing sheet is arranged at the corner position of the core material, by heating the vacuum insulation panel, one side of the heat sealing sheet is heat-sealed with the upper barrier film, and the other side of the heat sealing sheet is heat-sealed with the lower barrier film. In this way, the heat sealing volume at the corner position of the vacuum insulation panel is increased, so that the upper barrier film and the lower barrier film at the corner position of the vacuum insulation panel are firmly heat-sealed together, and the angle position of the vacuum insulation panel is not easy to leak. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the core material bagging in this application;
[0015] Figure 2 This is a schematic diagram of the structure of another core material bag in this application;
[0016] Figure 3 This is a schematic structural diagram of the vacuum insulation panel that is not prone to air leakage in this application.
[0017] Description of Reference Numerals
[0018] Barrier bag 1, upper barrier film 11, lower barrier film 12, core material 2, upper glass fiber mat 21, lower glass fiber mat 22, adsorbent 3, heat sealing sheet 4, heat sealing annular sheet 41. DETAILED DESCRIPTION
[0019] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.
[0020] like Figures 1 to 3 As shown, the utility model is a vacuum insulation panel that is not easy to leak, including a barrier bag 1, a core material 2, an adsorbent 3 and a heat-sealing sheet 4; the barrier bag 1 includes an upper barrier film 11 and a lower barrier film 12, the core material 2 is arranged in the barrier bag 1, the adsorbent 3 is arranged on the core material 2 and is located in the barrier bag 1, and the heat-sealing sheet 4 is arranged at the corner of the core material 2, one side of the heat-sealing sheet 4 is heat-sealed with the upper barrier film 11, and the other side of the heat-sealing sheet 4 is heat-sealed with the lower barrier film 12.
[0021] In this way, the utility model relates to a vacuum insulation panel that is not prone to air leakage. After the vacuum insulation panel is manufactured, since the heat sealing sheet 4 is arranged at the corner position of the core material 2, by heating the vacuum insulation panel, one side of the heat sealing sheet 4 is heat-sealed with the upper barrier film 11, and the other side of the heat sealing sheet 4 is heat-sealed with the lower barrier film 12. In this way, the heat sealing volume at the corner position of the vacuum insulation panel is increased, so that the upper barrier film 11 and the lower barrier film 12 at the corner position of the vacuum insulation panel are firmly heat-sealed together, making the angle position of the vacuum insulation panel not prone to air leakage.
[0022] The barrier bag 1 in this embodiment has an opening. After the core material 2 and the adsorbent 3 are placed in the barrier bag 1 through the opening and vacuumed, the opening is heat-sealed to form a vacuum insulation panel.
[0023] Preferably, the core material 2 is a sheet-like core material 2. For example, the core material 2 is formed by stacking multiple sheets of glass fiber felt; the heat-sealing sheet 4 is horizontally inserted between two adjacent glass fiber felts. When making the vacuum insulation panel, it is only necessary to divide the multiple sheets of glass fiber felt into an upper glass fiber felt 21 and a lower glass fiber felt 22, and then lift up the corner of the upper glass fiber felt 21, put in the heat-sealing sheet 4, and then put down the upper glass fiber felt 21. This allows the heat-sealing sheet 4 to be sandwiched between the two adjacent glass fiber felts, which is easy to operate. At the same time, after the heat-sealing sheet 4 is sandwiched between the two adjacent glass fiber felts, it can fix the heat-sealing sheet 4, making it easier to bag the core material 2.
[0024] After the vacuum insulation panel is manufactured, in order to make the edge sealing of the vacuum insulation panel narrower, the vacuum insulation panel needs to be heated as a whole, and then the excess edge leaves are cut to achieve an edge sealing width of 5μm-10μm, thereby achieving no folding. After the vacuum insulation panel is manufactured, there are small tunnels at the corners of the vacuum insulation panel where the upper and lower barrier films are fitted. After direct heating and cutting, the corners of the vacuum insulation panel are prone to air leakage due to the presence of small tunnels. To this end, the present application sets a heat sealing sheet 4 at the corners of the vacuum insulation panel. When the vacuum insulation panel is heated, the heat sealing sheet 4 at the corners of the vacuum insulation panel melts to form heat sealing glue, which can easily fill the small tunnels, thereby firmly heat-sealing the upper barrier film 11 and the lower barrier film 12 together, so that the corners of the vacuum insulation panel after cutting are not prone to air leakage.
[0025] In this embodiment, the inner sides of the upper barrier film 11 and the lower barrier film 12 are both provided with heat-sealing layers that are easily heat-sealed with the heat-sealing sheet 4. By providing the heat-sealing layers, when heated, the heat-sealing sheet 4 is quickly heat-sealed with the heat-sealing layers.
[0026] Specifically, the heat sealing layer is made of polyethylene material, and the heat sealing sheet 4 is made of polyethylene material. The heat sealing layer and the heat sealing sheet 4 made of the same material make it possible for the heat sealing sheet 4 to be quickly and firmly heat-sealed with the heat sealing layer after being heated to a certain temperature.
[0027] In another embodiment, the heat-sealing sheet 4 is a heat-sealing annular sheet 41, which is sandwiched between the multi-layer core material 2 and protrudes from the core material 2. In this way, the heat-sealing sheet 41 is also strengthened at the side of the vacuum insulation panel, further preventing air leakage in the vacuum insulation panel.
[0028] In this embodiment, the heat sealing sheet 4 has a thickness of 20 μm to 50 μm. When the heat sealing sheet 4 is heated, the heat sealing sheet 4 is easily heat-sealed together with the upper barrier film 11 and the lower barrier film 12 .
[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A vacuum insulation panel that is not easy to leak, characterized by: Includes barrier bag, core material, adsorbent and heat seal sheet; The barrier bag includes an upper barrier film and a lower barrier film, the core material is arranged in the barrier bag, the adsorbent is arranged on the core material and located in the barrier bag, the heat sealing sheet is arranged at the corner of the core material, one side of the heat sealing sheet is heat-sealed with the upper barrier film, and the other side of the heat sealing sheet is heat-sealed with the lower barrier film.
2. The vacuum insulation panel according to claim 1, wherein: The core material is a sheet-like core material.
3. The vacuum insulation panel according to claim 2, wherein: The core material is formed by stacking a plurality of glass fiber mats; the heat sealing sheet is inserted horizontally between two adjacent glass fiber mats.
4. The vacuum insulation panel according to claim 1, wherein: The inner sides of the upper barrier film and the lower barrier film are both provided with heat-sealing layers that are easily heat-sealed with the heat-sealing sheet.
5. The vacuum insulation panel according to claim 4, wherein: The heat sealing layer is made of polyethylene material, and the heat sealing sheet is made of polyethylene material.
6. The vacuum insulation panel according to claim 1, wherein: The heat-sealing sheet is a heat-sealing annular sheet, which is sandwiched in the middle of the multi-layer core material, and the outer side of the heat-sealing annular sheet protrudes from the core material.
7. The vacuum insulation panel according to claim 1, wherein: The thickness of the heat sealing sheet is 20 μm-50 μm.