Vacuum barrier bag of vacuum insulated panel
By designing a vacuum barrier bag with a multi-layer composite structure, the gap problem during vacuum insulation board packaging is solved, the insulation effect and barrier properties are improved, and it is suitable for home appliances, buildings and cold chain insulation.
Patent Information
- Application Number
- CN202422796862.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-15
AI Technical Summary
When the existing vacuum barrier bags pack vacuum insulation boards, sharp convex angles will form at both ends of the sealing place, resulting in a gap between two adjacent insulation boards, affecting the insulation effect, and poor tensile resistance and barrier properties.
A vacuum barrier bag of vacuum insulation plate is designed, which adopts a multi-layer composite material structure, including the outer layer of the bag body, left and right folded edges, front and rear folded edges, short edge strips on the top and sealed edges. The folded edges and creases are designed to make the edges without wrinkles and protrusions, and the stiffness and barrier properties are improved through multi-layer film composite.
It improves the insulation effect of vacuum insulation boards, enhances the performance of barrier bags, ensures no gaps between adjacent insulation boards, and improves the barrier properties of water vapor and oxygen. It is suitable for home appliances, buildings and cold chain insulation fields.
Smart Images
Figure CN223238430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum barrier bags, in particular to a vacuum barrier bag for a vacuum insulation panel. Background Art
[0002] Vacuum insulation panels (VIPs) are high-performance insulation materials that significantly reduce heat transfer by creating a near-vacuum space between two layers of material. The VIPs' vacuum barrier bag is a specialized packaging material used to encase the VIP core material, preventing gas from entering and maintaining the vacuum within the panel. These barrier bags are typically made from high-barrier materials to ensure a good seal and durability.
[0003] When using a common vacuum barrier bag, the insulation core material is first placed in a high-barrier bag, and then an adsorbent is added to absorb the residual gas. Finally, the bag is vacuumed and the other end is sealed. However, after the core material is placed and the bag is vacuumed, sharp corners are formed at both ends of the seal. When two adjacent vacuum insulation panels are installed together, a very small gap is formed between the two vacuum insulation panels due to the influence of the sharp corners. In this way, when the entire wall is insulated, heat is easily conducted through the gap, affecting the insulation effect of the vacuum insulation panel. In addition, since the vacuum barrier bag is made of a single-layer material, its tensile strength and barrier properties are poor during use, which cannot meet the working requirements of the vacuum barrier bag. Therefore, a vacuum barrier bag for vacuum insulation panels is proposed. Utility Model Content
[0004] (1) Technical problems solved
[0005] In response to the shortcomings of the existing technology, the utility model provides a vacuum barrier bag for a vacuum insulation panel to solve the technical problem that sharp corners are formed at both ends of the seal after packaging, resulting in a very small gap between the two vacuum insulation panels, which affects the thermal insulation effect of the vacuum insulation panel.
[0006] (2) Technical solution
[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vacuum barrier bag for a vacuum insulation panel, comprising:
[0008] The outer layer of the bag body is connected to left and right folds on both sides, and the front and back sides of the outer layer of the bag body are connected to front and back folds, the tops of the left and right folds are equipped with top short side strips, and the tops of the right and left folds are connected with top long side strips;
[0009] The sealing edge is connected to the top of the front and rear folds, and the outer side of the bag body, the left and right folds, the front and rear folds, the top short side strips and the top long side strips are all paved with aluminum foil;
[0010] A biaxially oriented polyethylene terephthalate film is laid on the inner side of the outer layer of the bag body, a biaxially oriented polyamide film is laid on the inner side of the biaxially oriented polyethylene terephthalate film, a linear low-density polyethylene film is laid on the inner side of the biaxially oriented polyamide film, a polyester aluminized film is laid on the inner side of the linear low-density polyethylene film, and a vinyl alcohol copolymer aluminized film is laid on the inner side of the polyester aluminized film.
[0011] Preferably, the outer layer of the bag, the biaxially oriented polyethylene terephthalate film, the biaxially oriented polyamide film, the linear low-density polyethylene film, the polyester aluminized film and the vinyl alcohol copolymer aluminized film are all bonded by dry lamination, thereby improving the overall stiffness, scratch resistance and good flexibility of the vacuum barrier bag, and at the same time improving the barrier properties to water vapor and oxygen.
[0012] Preferably, the top long side strip and the bottom of the sealing edge are pressed together by hot-melt adhesive, and the adhesive is made of polyurethane material, which improves the firmness of the adhesion after the vacuum barrier bag is packaged.
[0013] Preferably, the top long side strip is pressed onto the upper portion of the top short side strip, and the sealing edge is pressed onto the upper portion of the top long side strip and the top short side strip, thereby improving the sealing performance of the vacuum barrier bag package.
[0014] Preferably, folds are provided between the left and right folds and the front and rear folds and the outer layer of the bag body, and between the top short side strips, and folds are provided between the top long side strips and the left and right folds, and between the sealing edge and the front and rear folds, which facilitates the packaging of the vacuum insulation panel.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the present invention provides a vacuum barrier bag for a vacuum insulation panel, which has the following beneficial effects:
[0017] The vacuum barrier bag of the vacuum insulation panel can fold the top short side strip, the top long side strip and the sealing edge to the back of the vacuum insulation panel by adding left and right folding edges and front and back folding edges, so that after the vacuum insulation panel is packaged in the vacuum barrier bag, the edge of the vacuum insulation bag has no sharp protrusions such as wrinkles. When the vacuum insulation panel is packaged in the vacuum barrier bag, no gap will be generated between two adjacent vacuum insulation panels, thereby improving the heat preservation effect of the vacuum insulation panel and enhancing the performance of the vacuum barrier bag. The multi-layer aluminum film composite method enhances the stiffness, scratch resistance and good flexibility of the vacuum barrier bag, while improving the barrier properties to water vapor and oxygen. At the same time, the composite layered structure has excellent barrier properties, with oxygen permeability ≤0.1 and water vapor permeability ≤0.1. The composite layered structure will be made into a barrier bag to wrap the vacuum insulation panel and become a part of the insulation board to prevent external gas from penetrating into the vacuum insulation panel and maintain the vacuum degree inside the vacuum insulation panel. It will eventually be used for insulation of home appliances and refrigerators, insulation of building exterior walls, insulation of cold chain insulation boxes and insulation of refrigerated trucks, thereby improving the versatility of the vacuum barrier bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the combined structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the layered structure of the utility model.
[0021] In the figure: 1. Outer layer of the bag; 11. Biaxially oriented polyethylene terephthalate film; 12. Biaxially oriented polyamide film; 13. Linear low-density polyethylene film; 14. Polyester aluminized film; 15. Vinyl alcohol copolymer aluminized film; 2. Left and right folds; 3. Front and back folds; 4. Top short edge strip; 5. Top long edge strip; 6. Sealing edge. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The utility model provides a technical solution, a vacuum barrier bag of a vacuum insulation panel, comprising a bag outer layer 1, a biaxially oriented polyethylene terephthalate film 11, a biaxially oriented polyamide film 12, a linear low-density polyethylene film 13, a polyester aluminized film 14, a vinyl alcohol copolymer aluminized film 15, left and right folds 2, front and back folds 3, a top short side strip 4, a top long side strip 5 and a sealing edge 6:
[0024] See also Figure 1 The left and right sides of the outer layer 1 of the bag body are connected with left and right folded edges 2, the front and back sides of the outer layer 1 of the bag body are connected with front and back folded edges 3, the top of the left and right folded edges 2 is equipped with a top short side strip 4, and the top of the right and left folded edges 2 is connected with a top long side strip 5;
[0025] The sealing edge 6 is connected to the top of the front and rear folds 3. The outer sides of the bag body 1, the left and right folds 2, the front and rear folds 3, the top short side strip 4 and the top long side strip 5 are all covered with aluminum foil. The top long side strip 5 and the bottom of the sealing edge 6 are pressed together by hot-melt adhesive. The adhesive is made of polyurethane material. The top long side strip 5 is pressed on the upper part of the top short side strip 4. The sealing edge 6 is pressed on the upper part of the top long side strip 5 and the top short side strip 4. There are creases between the left and right folds 2 and the front and rear folds 3 and the bag body 1, and between the top short side strip 4. There are creases between the top long side strip 5 and the left and right folds 2, and between the sealing edge 6 and the front and rear folds 3. Please refer to Figure 2 The added left and right folds 2 and front and rear folds 3 allow the top short side strips 4, top long side strips 5, and sealing edges 6 to be folded over to the back of the vacuum insulation panel. This ensures that after the vacuum insulation panel is packaged in the vacuum barrier bag, the edges of the vacuum insulation bag are free of wrinkles or other sharp protrusions. When the vacuum insulation panel is packaged in the vacuum barrier bag, no gaps are generated between adjacent vacuum insulation panels, thereby improving the thermal insulation effect of the vacuum insulation panel and enhancing the performance of the vacuum barrier bag.
[0026] See also Figure 3, biaxially oriented polyethylene terephthalate film 11 is laid on the inner side of the outer layer 1 of the bag, the inner side of the biaxially oriented polyethylene terephthalate film 11 is laid with a biaxially oriented polyamide film 12, the inner side of the biaxially oriented polyamide film 12 is laid with a linear low-density polyethylene film 13, the inner side of the linear low-density polyethylene film 13 is laid with a polyester aluminized film 14, the inner side of the polyester aluminized film 14 is laid with a vinyl alcohol copolymer aluminized film 15, the outer layer 1 of the bag, the biaxially oriented polyethylene terephthalate film 11, the biaxially oriented polyamide film 12, the linear low-density polyethylene film 13, the linear low-density polyethylene film 13, the linear low-density polyethylene film 13, the linear low-density polyethylene film 14, the linear low-density polyethylene film 15, the linear low-density polyethylene film 13 ... The biaxially oriented polyamide film 12, the linear low-density polyethylene film 13, the polyester aluminized film 14 and the vinyl alcohol copolymer aluminized film 15 are all bonded together by dry lamination. By multi-layer lamination of the biaxially oriented polyethylene terephthalate film 11, the biaxially oriented polyamide film 12, the linear low-density polyethylene film 13, the polyester aluminized film 14 and the vinyl alcohol copolymer aluminized film 15, the stiffness, scratch resistance and good flexibility of the vacuum barrier bag are enhanced, and the barrier properties to water vapor and oxygen are improved.
[0027] This solution adds left and right folding edges 2 and front and back folding edges 3 so that the top short side strip 4, the top long side strip 5 and the sealing edge 6 can be folded to the back of the vacuum insulation panel, so that after the vacuum barrier bag is packaged with the vacuum insulation panel, its edges will not have wrinkles or other sharp protrusions. When the vacuum barrier bag is used to package the vacuum insulation panel, no gap will be generated between two adjacent vacuum insulation panels, thereby improving the thermal insulation effect of the vacuum insulation panel and enhancing the performance of the vacuum barrier bag. At the same time, through the multi-layer composite method of biaxially oriented polyethylene terephthalate film 11, biaxially oriented polyamide film 12, linear low-density polyethylene film 13, polyester aluminized film 14 and vinyl alcohol copolymer aluminized film 15, the stiffness, scratch resistance and good flexibility of the vacuum barrier bag are enhanced, and the barrier property to water vapor and oxygen can be improved.
[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A vacuum barrier bag for a vacuum insulation panel, characterized in that: include: The outer layer (1) of the bag body is connected to left and right folded edges (2) on both left and right sides of the outer layer (1), and the front and rear sides of the outer layer (1) are connected to front and rear folded edges (3). The tops of the left and right folded edges (2) are provided with top short side strips (4), and the tops of the right and left folded edges (2) are connected with top long side strips (5). A sealing edge (6) is connected to the top of the front and rear folding edges (3), and the outer sides of the bag body (1), the left and right folding edges (2), the front and rear folding edges (3), the top short side strip (4) and the top long side strip (5) are all paved with aluminum foil; A biaxially oriented polyethylene terephthalate film (11) is laid on the inner side of the outer layer (1) of the bag body, a biaxially oriented polyamide film (12) is laid on the inner side of the biaxially oriented polyethylene terephthalate film (11), a linear low-density polyethylene film (13) is laid on the inner side of the biaxially oriented polyamide film (12), a polyester aluminized film (14) is laid on the inner side of the linear low-density polyethylene film (13), and a vinyl alcohol copolymer aluminized film (15) is laid on the inner side of the polyester aluminized film (14).
2. The vacuum barrier bag of a vacuum insulation panel according to claim 1, characterized in that: The outer layer (1) of the bag body, the biaxially oriented polyethylene terephthalate film (11), the biaxially oriented polyamide film (12), the linear low-density polyethylene film (13), the polyester aluminized film (14) and the vinyl alcohol copolymer aluminized film (15) are all bonded together by dry lamination.
3. The vacuum barrier bag of a vacuum insulation panel according to claim 1, characterized in that: The top long side strip (5) and the bottom of the sealing edge (6) are pressed together by hot-melting an adhesive, and the adhesive is made of a polyurethane material.
4. The vacuum barrier bag of a vacuum insulation panel according to claim 1, wherein: The top long side strip (5) is pressed onto the upper portion of the top short side strip (4), and the sealing edge (6) is pressed onto the upper portions of the top long side strip (5) and the top short side strip (4).
5. The vacuum barrier bag of a vacuum insulation panel according to claim 1, characterized in that: Folds are provided between the left and right folds (2) and the front and rear folds (3) and the outer layer (1) of the bag body, and between the top short side strip (4); and folds are provided between the top long side strip (5) and the left and right folds (2), and between the sealing edge (6) and the front and rear folds (3).